Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/raidframe/rf_pqdeg.h
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1 /* $NetBSD: rf_pqdeg.h,v 1.5 2001/10/04 15:58:55 oster Exp $ */ 2 /* 3 * Copyright (c) 1995 Carnegie-Mellon University. 4 * All rights reserved. 5 * 6 * Author: Daniel Stodolsky 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_PQDEG_H_ 30 #define _RF__RF_PQDEG_H_ 31 32 #if (RF_INCLUDE_PQ > 0) || (RF_INCLUDE_RAID6 > 0) 33 34 #include <dev/raidframe/raidframevar.h> 35 36 #include "rf_dag.h" 37 38 /* extern decl's of the failure mode PQ functions. 39 * See pddeg.c for nomenclature discussion. 40 */ 41 42 /* reads, single failure */ 43 RF_CREATE_DAG_FUNC_DECL(rf_PQ_100_CreateReadDAG); 44 /* reads, two failure */ 45 RF_CREATE_DAG_FUNC_DECL(rf_PQ_110_CreateReadDAG); 46 RF_CREATE_DAG_FUNC_DECL(rf_PQ_101_CreateReadDAG); 47 RF_CREATE_DAG_FUNC_DECL(rf_PQ_200_CreateReadDAG); 48 49 /* writes, single failure */ 50 RF_CREATE_DAG_FUNC_DECL(rf_PQ_100_CreateWriteDAG); 51 RF_CREATE_DAG_FUNC_DECL(rf_PQ_010_CreateSmallWriteDAG); 52 RF_CREATE_DAG_FUNC_DECL(rf_PQ_010_CreateLargeWriteDAG); 53 RF_CREATE_DAG_FUNC_DECL(rf_PQ_001_CreateSmallWriteDAG); 54 RF_CREATE_DAG_FUNC_DECL(rf_PQ_001_CreateLargeWriteDAG); 55 56 /* writes, double failure */ 57 RF_CREATE_DAG_FUNC_DECL(rf_PQ_011_CreateWriteDAG); 58 RF_CREATE_DAG_FUNC_DECL(rf_PQ_110_CreateWriteDAG); 59 RF_CREATE_DAG_FUNC_DECL(rf_PQ_101_CreateWriteDAG); 60 RF_CREATE_DAG_FUNC_DECL(rf_PQ_200_CreateWriteDAG); 61 62 typedef RF_uint32 RF_ua32_t[32]; 63 typedef RF_uint8 RF_ua1024_t[1024]; 64 65 extern RF_ua32_t rf_rn; 66 extern RF_ua32_t rf_qfor[32]; 67 #ifndef _KERNEL /* we don't support PQ in the kernel yet, so 68 * don't link in this monster table */ 69 extern RF_ua1024_t rf_qinv[29 * 29]; 70 #else /* !_KERNEL */ 71 extern RF_ua1024_t rf_qinv[1]; 72 #endif /* !_KERNEL */ 73 74 #endif /* (RF_INCLUDE_PQ > 0) || (RF_INCLUDE_RAID6 > 0) */ 75 76 #endif /* !_RF__RF_PQDEG_H_ */
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