rf_map.h revision 1.5
1/* $NetBSD: rf_map.h,v 1.5 2002/08/03 01:07:53 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 49int rf_ConfigureMapModule(RF_ShutdownList_t ** listp); 50 51RF_AccessStripeMapHeader_t *rf_AllocAccessStripeMapHeader(void); 52 53void rf_FreeAccessStripeMapHeader(RF_AccessStripeMapHeader_t * p); 54 55RF_PhysDiskAddr_t *rf_AllocPhysDiskAddr(void); 56 57RF_PhysDiskAddr_t *rf_AllocPDAList(int count); 58 59void rf_FreePhysDiskAddr(RF_PhysDiskAddr_t * p); 60 61RF_AccessStripeMap_t *rf_AllocAccessStripeMapComponent(void); 62 63RF_AccessStripeMap_t *rf_AllocASMList(int count); 64 65void rf_FreeAccessStripeMapComponent(RF_AccessStripeMap_t * p); 66 67void rf_FreeAccessStripeMap(RF_AccessStripeMapHeader_t * hdr); 68 69int rf_CheckStripeForFailures(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * asmap); 70 71int rf_NumFailedDataUnitsInStripe(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * asmap); 72 73void rf_PrintAccessStripeMap(RF_AccessStripeMapHeader_t * asm_h); 74 75void rf_PrintFullAccessStripeMap(RF_AccessStripeMapHeader_t * asm_h, int prbuf); 76 77void 78rf_PrintRaidAddressInfo(RF_Raid_t * raidPtr, RF_RaidAddr_t raidAddr, 79 RF_SectorCount_t numBlocks); 80 81void 82rf_ASMParityAdjust(RF_PhysDiskAddr_t * toAdjust, 83 RF_StripeNum_t startAddrWithinStripe, RF_SectorNum_t endAddress, 84 RF_RaidLayout_t * layoutPtr, RF_AccessStripeMap_t * asm_p); 85 86void 87rf_ASMCheckStatus(RF_Raid_t * raidPtr, RF_PhysDiskAddr_t * pda_p, 88 RF_AccessStripeMap_t * asm_p, RF_RaidDisk_t ** disks, int parity); 89 90#endif /* !_RF__RF_MAP_H_ */ 91