1/*	$NetBSD: rf_pqdeg.h,v 1.4 2001/06/20 03:09:23 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  */
43RF_CREATE_DAG_FUNC_DECL(rf_PQ_100_CreateReadDAG);
44/* reads, two failure */
45RF_CREATE_DAG_FUNC_DECL(rf_PQ_110_CreateReadDAG);
46RF_CREATE_DAG_FUNC_DECL(rf_PQ_101_CreateReadDAG);
47RF_CREATE_DAG_FUNC_DECL(rf_PQ_200_CreateReadDAG);
48
49/* writes, single failure */
50RF_CREATE_DAG_FUNC_DECL(rf_PQ_100_CreateWriteDAG);
51RF_CREATE_DAG_FUNC_DECL(rf_PQ_010_CreateSmallWriteDAG);
52RF_CREATE_DAG_FUNC_DECL(rf_PQ_010_CreateLargeWriteDAG);
53RF_CREATE_DAG_FUNC_DECL(rf_PQ_001_CreateSmallWriteDAG);
54RF_CREATE_DAG_FUNC_DECL(rf_PQ_001_CreateLargeWriteDAG);
55
56/* writes, double failure */
57RF_CREATE_DAG_FUNC_DECL(rf_PQ_011_CreateWriteDAG);
58RF_CREATE_DAG_FUNC_DECL(rf_PQ_110_CreateWriteDAG);
59RF_CREATE_DAG_FUNC_DECL(rf_PQ_101_CreateWriteDAG);
60RF_CREATE_DAG_FUNC_DECL(rf_PQ_200_CreateWriteDAG);
61
62typedef RF_uint32 RF_ua32_t[32];
63typedef RF_uint8 RF_ua1024_t[1024];
64
65extern RF_ua32_t rf_rn;
66extern 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 */
69extern RF_ua1024_t rf_qinv[29 * 29];
70#else				/* !_KERNEL */
71extern 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