rf_dagdegrd.h revision 1.1 
1/*	$NetBSD: rf_dagdegrd.h,v 1.1 1998/11/13 04:20:27 oster Exp $	*/
2/*
3 * Copyright (c) 1995 Carnegie-Mellon University.
4 * All rights reserved.
5 *
6 * Author: Mark Holland, Daniel Stodolsky, William V. Courtright II
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/*
30 * :
31 * Log: rf_dagdegrd.h,v
32 * Revision 1.6  1996/07/31 16:29:06  jimz
33 * asm/asmap re-fix (EO merge)
34 *
35 * Revision 1.5  1996/07/31  15:34:40  jimz
36 * evenodd changes; bugfixes for double-degraded archs, generalize
37 * some formerly PQ-only functions
38 *
39 * Revision 1.4  1996/07/22  19:52:16  jimz
40 * switched node params to RF_DagParam_t, a union of
41 * a 64-bit int and a void *, for better portability
42 * attempted hpux port, but failed partway through for
43 * lack of a single C compiler capable of compiling all
44 * source files
45 *
46 * Revision 1.3  1996/05/24  22:17:04  jimz
47 * continue code + namespace cleanup
48 * typed a bunch of flags
49 *
50 * Revision 1.2  1996/05/23  21:46:35  jimz
51 * checkpoint in code cleanup (release prep)
52 * lots of types, function names have been fixed
53 *
54 * Revision 1.1  1996/05/03  19:22:06  wvcii
55 * Initial revision
56 *
57 */
58
59#ifndef _RF__RF_DAGDEGRD_H_
60#define _RF__RF_DAGDEGRD_H_
61
62#include "rf_types.h"
63
64/* degraded read DAG creation routines */
65void rf_CreateRaidFiveDegradedReadDAG(RF_Raid_t *raidPtr,
66	RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
67	RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList);
68void rf_CreateRaidOneDegradedReadDAG(RF_Raid_t *raidPtr,
69	RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
70	RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList);
71void rf_CreateDegradedReadDAG(RF_Raid_t *raidPtr,
72	RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
73	RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList,
74	RF_RedFuncs_t *recFunc);
75void rf_CreateRaidCDegradedReadDAG(RF_Raid_t *raidPtr,
76	RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
77	RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList);
78void rf_DD_GenerateFailedAccessASMs(RF_Raid_t *raidPtr,
79	RF_AccessStripeMap_t *asmap, RF_PhysDiskAddr_t **pdap,
80	int *nNodep, RF_PhysDiskAddr_t **pqpdap, int *nPQNodep,
81	RF_AllocListElem_t *allocList);
82void rf_DoubleDegRead(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap,
83	RF_DagHeader_t *dag_h, void *bp, RF_RaidAccessFlags_t flags,
84	RF_AllocListElem_t *allocList, char *redundantReadNodeName,
85	char *recoveryNodeName, int (*recovFunc)(RF_DagNode_t *));
86
87#endif /* !_RF__RF_DAGDEGRD_H_ */
88