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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 (at) 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 */
     39 RF_AccessStripeMapHeader_t *rf_MapAccess(RF_Raid_t *raidPtr,
     40 	RF_RaidAddr_t raidAddress, RF_SectorCount_t numBlocks,
     41 	caddr_t buffer, int remap);
     42 
     43 void rf_MarkFailuresInASMList(RF_Raid_t *raidPtr,
     44 	RF_AccessStripeMapHeader_t *asm_h);
     45 
     46 RF_AccessStripeMap_t *rf_DuplicateASM(RF_AccessStripeMap_t *asmap);
     47 
     48 RF_PhysDiskAddr_t *rf_DuplicatePDA(RF_PhysDiskAddr_t *pda);
     49 
     50 int rf_ConfigureMapModule(RF_ShutdownList_t **listp);
     51 
     52 RF_AccessStripeMapHeader_t *rf_AllocAccessStripeMapHeader(void);
     53 
     54 void rf_FreeAccessStripeMapHeader(RF_AccessStripeMapHeader_t *p);
     55 
     56 RF_PhysDiskAddr_t *rf_AllocPhysDiskAddr(void);
     57 
     58 RF_PhysDiskAddr_t *rf_AllocPDAList(int count);
     59 
     60 void rf_FreePhysDiskAddr(RF_PhysDiskAddr_t *p);
     61 
     62 RF_AccessStripeMap_t *rf_AllocAccessStripeMapComponent(void);
     63 
     64 RF_AccessStripeMap_t *rf_AllocASMList(int count);
     65 
     66 void rf_FreeAccessStripeMapComponent(RF_AccessStripeMap_t *p);
     67 
     68 void rf_FreeAccessStripeMap(RF_AccessStripeMapHeader_t *hdr);
     69 
     70 int rf_CheckStripeForFailures(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap);
     71 
     72 int rf_NumFailedDataUnitsInStripe(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap);
     73 
     74 void rf_PrintAccessStripeMap(RF_AccessStripeMapHeader_t *asm_h);
     75 
     76 void rf_PrintFullAccessStripeMap(RF_AccessStripeMapHeader_t *asm_h, int prbuf);
     77 
     78 void rf_PrintRaidAddressInfo(RF_Raid_t *raidPtr, RF_RaidAddr_t raidAddr,
     79 	RF_SectorCount_t numBlocks);
     80 
     81 void 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 
     85 void 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