1 /* $NetBSD: rf_parityscan.h,v 1.4 2001/10/04 15:58:55 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 #ifndef _RF__RF_PARITYSCAN_H_ 30 #define _RF__RF_PARITYSCAN_H_ 31 32 #include <dev/raidframe/raidframevar.h> 33 34 #include "rf_alloclist.h" 35 36 int rf_RewriteParity(RF_Raid_t * raidPtr); 37 int 38 rf_VerifyParityBasic(RF_Raid_t * raidPtr, RF_RaidAddr_t raidAddr, 39 RF_PhysDiskAddr_t * parityPDA, int correct_it, RF_RaidAccessFlags_t flags); 40 int 41 rf_VerifyParity(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * stripeMap, 42 int correct_it, RF_RaidAccessFlags_t flags); 43 int rf_TryToRedirectPDA(RF_Raid_t * raidPtr, RF_PhysDiskAddr_t * pda, int parity); 44 int rf_VerifyDegrModeWrite(RF_Raid_t * raidPtr, RF_AccessStripeMapHeader_t * asmh); 45 RF_DagHeader_t * 46 rf_MakeSimpleDAG(RF_Raid_t * raidPtr, int nNodes, 47 int bytesPerSU, char *databuf, 48 int (*doFunc) (RF_DagNode_t *), 49 int (*undoFunc) (RF_DagNode_t *), 50 char *name, RF_AllocListElem_t * alloclist, 51 RF_RaidAccessFlags_t flags, int priority); 52 53 #define RF_DO_CORRECT_PARITY 1 54 #define RF_DONT_CORRECT_PARITY 0 55 56 /* 57 * Return vals for VerifyParity operation 58 * 59 * Ordering is important here. 60 */ 61 #define RF_PARITY_OKAY 0 /* or no parity information */ 62 #define RF_PARITY_CORRECTED 1 63 #define RF_PARITY_BAD 2 64 #define RF_PARITY_COULD_NOT_CORRECT 3 65 #define RF_PARITY_COULD_NOT_VERIFY 4 66 67 #endif /* !_RF__RF_PARITYSCAN_H_ */ 68