rf_map.h revision 1.2 
1/*	$NetBSD: rf_map.h,v 1.2 1999/01/26 02:33:58 oster Exp $	*/
2/*
3 * Copyright (c) 1995 Carnegie-Mellon University.
4 * All rights reserved.
5 *
6 * Author: Mark Holland
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/* rf_map.h */
30
31#ifndef _RF__RF_MAP_H_
32#define _RF__RF_MAP_H_
33
34#include "rf_types.h"
35#include "rf_alloclist.h"
36#include "rf_raid.h"
37
38/* mapping structure allocation and free routines */
39RF_AccessStripeMapHeader_t *rf_MapAccess(RF_Raid_t *raidPtr,
40	RF_RaidAddr_t raidAddress, RF_SectorCount_t numBlocks,
41	caddr_t buffer, int remap);
42
43void rf_MarkFailuresInASMList(RF_Raid_t *raidPtr,
44	RF_AccessStripeMapHeader_t *asm_h);
45
46RF_AccessStripeMap_t *rf_DuplicateASM(RF_AccessStripeMap_t *asmap);
47
48RF_PhysDiskAddr_t *rf_DuplicatePDA(RF_PhysDiskAddr_t *pda);
49
50int rf_ConfigureMapModule(RF_ShutdownList_t **listp);
51
52RF_AccessStripeMapHeader_t *rf_AllocAccessStripeMapHeader(void);
53
54void rf_FreeAccessStripeMapHeader(RF_AccessStripeMapHeader_t *p);
55
56RF_PhysDiskAddr_t *rf_AllocPhysDiskAddr(void);
57
58RF_PhysDiskAddr_t *rf_AllocPDAList(int count);
59
60void rf_FreePhysDiskAddr(RF_PhysDiskAddr_t *p);
61
62RF_AccessStripeMap_t *rf_AllocAccessStripeMapComponent(void);
63
64RF_AccessStripeMap_t *rf_AllocASMList(int count);
65
66void rf_FreeAccessStripeMapComponent(RF_AccessStripeMap_t *p);
67
68void rf_FreeAccessStripeMap(RF_AccessStripeMapHeader_t *hdr);
69
70int rf_CheckStripeForFailures(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap);
71
72int rf_NumFailedDataUnitsInStripe(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap);
73
74void rf_PrintAccessStripeMap(RF_AccessStripeMapHeader_t *asm_h);
75
76void rf_PrintFullAccessStripeMap(RF_AccessStripeMapHeader_t *asm_h, int prbuf);
77
78void rf_PrintRaidAddressInfo(RF_Raid_t *raidPtr, RF_RaidAddr_t raidAddr,
79	RF_SectorCount_t numBlocks);
80
81void rf_ASMParityAdjust(RF_PhysDiskAddr_t *toAdjust,
82	RF_StripeNum_t startAddrWithinStripe, RF_SectorNum_t endAddress,
83	RF_RaidLayout_t *layoutPtr, RF_AccessStripeMap_t *asm_p);
84
85void rf_ASMCheckStatus(RF_Raid_t *raidPtr, RF_PhysDiskAddr_t *pda_p,
86	RF_AccessStripeMap_t *asm_p, RF_RaidDisk_t **disks, int parity);
87
88#endif /* !_RF__RF_MAP_H_ */
89