rf_map.h revision 1.4 
1/*	$NetBSD: rf_map.h,v 1.4 2001/10/04 15:58:54 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 <dev/raidframe/raidframevar.h>
35
36#include "rf_alloclist.h"
37#include "rf_raid.h"
38
39/* mapping structure allocation and free routines */
40RF_AccessStripeMapHeader_t *
41rf_MapAccess(RF_Raid_t * raidPtr,
42    RF_RaidAddr_t raidAddress, RF_SectorCount_t numBlocks,
43    caddr_t buffer, int remap);
44
45void
46rf_MarkFailuresInASMList(RF_Raid_t * raidPtr,
47    RF_AccessStripeMapHeader_t * asm_h);
48
49RF_AccessStripeMap_t *rf_DuplicateASM(RF_AccessStripeMap_t * asmap);
50
51RF_PhysDiskAddr_t *rf_DuplicatePDA(RF_PhysDiskAddr_t * pda);
52
53int     rf_ConfigureMapModule(RF_ShutdownList_t ** listp);
54
55RF_AccessStripeMapHeader_t *rf_AllocAccessStripeMapHeader(void);
56
57void    rf_FreeAccessStripeMapHeader(RF_AccessStripeMapHeader_t * p);
58
59RF_PhysDiskAddr_t *rf_AllocPhysDiskAddr(void);
60
61RF_PhysDiskAddr_t *rf_AllocPDAList(int count);
62
63void    rf_FreePhysDiskAddr(RF_PhysDiskAddr_t * p);
64
65RF_AccessStripeMap_t *rf_AllocAccessStripeMapComponent(void);
66
67RF_AccessStripeMap_t *rf_AllocASMList(int count);
68
69void    rf_FreeAccessStripeMapComponent(RF_AccessStripeMap_t * p);
70
71void    rf_FreeAccessStripeMap(RF_AccessStripeMapHeader_t * hdr);
72
73int     rf_CheckStripeForFailures(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * asmap);
74
75int     rf_NumFailedDataUnitsInStripe(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * asmap);
76
77void    rf_PrintAccessStripeMap(RF_AccessStripeMapHeader_t * asm_h);
78
79void    rf_PrintFullAccessStripeMap(RF_AccessStripeMapHeader_t * asm_h, int prbuf);
80
81void
82rf_PrintRaidAddressInfo(RF_Raid_t * raidPtr, RF_RaidAddr_t raidAddr,
83    RF_SectorCount_t numBlocks);
84
85void
86rf_ASMParityAdjust(RF_PhysDiskAddr_t * toAdjust,
87    RF_StripeNum_t startAddrWithinStripe, RF_SectorNum_t endAddress,
88    RF_RaidLayout_t * layoutPtr, RF_AccessStripeMap_t * asm_p);
89
90void
91rf_ASMCheckStatus(RF_Raid_t * raidPtr, RF_PhysDiskAddr_t * pda_p,
92    RF_AccessStripeMap_t * asm_p, RF_RaidDisk_t ** disks, int parity);
93
94#endif				/* !_RF__RF_MAP_H_ */
95