1 | /* $NetBSD: rf_pqdeg.h,v 1.5 2001/10/04 15:58:55 oster Exp $ */ |
2 | /* |
3 | * Copyright (c) 1995 Carnegie-Mellon University. |
4 | * All rights reserved. |
5 | * |
6 | * Author: Daniel Stodolsky |
7 | * |
8 | * Permission to use, copy, modify and distribute this software and |
9 | * its documentation is hereby granted, provided that both the copyright |
10 | * notice and this permission notice appear in all copies of the |
11 | * software, derivative works or modified versions, and any portions |
12 | * thereof, and that both notices appear in supporting documentation. |
13 | * |
14 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" |
15 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND |
16 | * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
17 | * |
18 | * Carnegie Mellon requests users of this software to return to |
19 | * |
20 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
21 | * School of Computer Science |
22 | * Carnegie Mellon University |
23 | * Pittsburgh PA 15213-3890 |
24 | * |
25 | * any improvements or extensions that they make and grant Carnegie the |
26 | * rights to redistribute these changes. |
27 | */ |
28 | |
29 | #ifndef _RF__RF_PQDEG_H_ |
30 | #define _RF__RF_PQDEG_H_ |
31 | |
32 | #if (RF_INCLUDE_PQ > 0) || (RF_INCLUDE_RAID6 > 0) |
33 | |
34 | #include <dev/raidframe/raidframevar.h> |
35 | |
36 | #include "rf_dag.h" |
37 | |
38 | /* extern decl's of the failure mode PQ functions. |
39 | * See pddeg.c for nomenclature discussion. |
40 | */ |
41 | |
42 | /* reads, single failure */ |
43 | RF_CREATE_DAG_FUNC_DECL(rf_PQ_100_CreateReadDAG); |
44 | /* reads, two failure */ |
45 | RF_CREATE_DAG_FUNC_DECL(rf_PQ_110_CreateReadDAG); |
46 | RF_CREATE_DAG_FUNC_DECL(rf_PQ_101_CreateReadDAG); |
47 | RF_CREATE_DAG_FUNC_DECL(rf_PQ_200_CreateReadDAG); |
48 | |
49 | /* writes, single failure */ |
50 | RF_CREATE_DAG_FUNC_DECL(rf_PQ_100_CreateWriteDAG); |
51 | RF_CREATE_DAG_FUNC_DECL(rf_PQ_010_CreateSmallWriteDAG); |
52 | RF_CREATE_DAG_FUNC_DECL(rf_PQ_010_CreateLargeWriteDAG); |
53 | RF_CREATE_DAG_FUNC_DECL(rf_PQ_001_CreateSmallWriteDAG); |
54 | RF_CREATE_DAG_FUNC_DECL(rf_PQ_001_CreateLargeWriteDAG); |
55 | |
56 | /* writes, double failure */ |
57 | RF_CREATE_DAG_FUNC_DECL(rf_PQ_011_CreateWriteDAG); |
58 | RF_CREATE_DAG_FUNC_DECL(rf_PQ_110_CreateWriteDAG); |
59 | RF_CREATE_DAG_FUNC_DECL(rf_PQ_101_CreateWriteDAG); |
60 | RF_CREATE_DAG_FUNC_DECL(rf_PQ_200_CreateWriteDAG); |
61 | |
62 | typedef RF_uint32 RF_ua32_t[32]; |
63 | typedef RF_uint8 RF_ua1024_t[1024]; |
64 | |
65 | extern RF_ua32_t rf_rn; |
66 | extern RF_ua32_t rf_qfor[32]; |
67 | #ifndef _KERNEL /* we don't support PQ in the kernel yet, so |
68 | * don't link in this monster table */ |
69 | extern RF_ua1024_t rf_qinv[29 * 29]; |
70 | #else /* !_KERNEL */ |
71 | extern RF_ua1024_t rf_qinv[1]; |
72 | #endif /* !_KERNEL */ |
73 | |
74 | #endif /* (RF_INCLUDE_PQ > 0) || (RF_INCLUDE_RAID6 > 0) */ |
75 | |
76 | #endif /* !_RF__RF_PQDEG_H_ */ |
77 | |