Annotation of sys/dev/raidframe/rf_parityscan.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: rf_parityscan.h,v 1.3 2002/12/16 07:01:04 tdeval Exp $ */
2: /* $NetBSD: rf_parityscan.h,v 1.3 1999/02/05 00:06:14 oster Exp $ */
3:
4: /*
5: * Copyright (c) 1995 Carnegie-Mellon University.
6: * All rights reserved.
7: *
8: * Author: Mark Holland
9: *
10: * Permission to use, copy, modify and distribute this software and
11: * its documentation is hereby granted, provided that both the copyright
12: * notice and this permission notice appear in all copies of the
13: * software, derivative works or modified versions, and any portions
14: * thereof, and that both notices appear in supporting documentation.
15: *
16: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
17: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
18: * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
19: *
20: * Carnegie Mellon requests users of this software to return to
21: *
22: * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
23: * School of Computer Science
24: * Carnegie Mellon University
25: * Pittsburgh PA 15213-3890
26: *
27: * any improvements or extensions that they make and grant Carnegie the
28: * rights to redistribute these changes.
29: */
30:
31: #ifndef _RF__RF_PARITYSCAN_H_
32: #define _RF__RF_PARITYSCAN_H_
33:
34: #include "rf_types.h"
35: #include "rf_alloclist.h"
36:
37: int rf_RewriteParity(RF_Raid_t *);
38: int rf_VerifyParityBasic(RF_Raid_t *, RF_RaidAddr_t, RF_PhysDiskAddr_t *, int,
39: RF_RaidAccessFlags_t);
40: int rf_VerifyParity(RF_Raid_t *, RF_AccessStripeMap_t *, int,
41: RF_RaidAccessFlags_t);
42: int rf_TryToRedirectPDA(RF_Raid_t *, RF_PhysDiskAddr_t *, int);
43: int rf_VerifyDegrModeWrite(RF_Raid_t *, RF_AccessStripeMapHeader_t *);
44: RF_DagHeader_t *rf_MakeSimpleDAG(RF_Raid_t *, int, int, char *,
45: int (*) (RF_DagNode_t *), int (*) (RF_DagNode_t *), char *,
46: RF_AllocListElem_t *, RF_RaidAccessFlags_t, int);
47:
48: #define RF_DO_CORRECT_PARITY 1
49: #define RF_DONT_CORRECT_PARITY 0
50:
51: /*
52: * Return vals for VerifyParity operation.
53: *
54: * Ordering is important here.
55: */
56: #define RF_PARITY_OKAY 0 /* Or no parity information. */
57: #define RF_PARITY_CORRECTED 1
58: #define RF_PARITY_BAD 2
59: #define RF_PARITY_COULD_NOT_CORRECT 3
60: #define RF_PARITY_COULD_NOT_VERIFY 4
61:
62: #endif /* !_RF__RF_PARITYSCAN_H_ */
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