94 lines
3.4 KiB
C
94 lines
3.4 KiB
C
/* $NetBSD: rf_configure.h,v 1.4 1999/03/02 03:18:49 oster Exp $ */
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/*
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* Copyright (c) 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Mark Holland
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/********************************
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*
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* rf_configure.h
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*
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* header file for raidframe configuration in the kernel version only.
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* configuration is invoked via ioctl rather than at boot time
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*
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*******************************/
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#ifndef _RF__RF_CONFIGURE_H_
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#define _RF__RF_CONFIGURE_H_
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#include "rf_archs.h"
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#include "rf_types.h"
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#include <sys/param.h>
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#include <sys/proc.h>
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#include <sys/ioctl.h>
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/* the raidframe configuration, passed down through an ioctl.
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* the driver can be reconfigured (with total loss of data) at any time,
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* but it must be shut down first.
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*/
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struct RF_Config_s {
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RF_RowCol_t numRow, numCol, numSpare; /* number of rows, columns,
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* and spare disks */
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dev_t devs[RF_MAXROW][RF_MAXCOL]; /* device numbers for disks
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* comprising array */
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char devnames[RF_MAXROW][RF_MAXCOL][50]; /* device names */
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dev_t spare_devs[RF_MAXSPARE]; /* device numbers for spare
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* disks */
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char spare_names[RF_MAXSPARE][50]; /* device names */
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RF_SectorNum_t sectPerSU; /* sectors per stripe unit */
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RF_StripeNum_t SUsPerPU;/* stripe units per parity unit */
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RF_StripeNum_t SUsPerRU;/* stripe units per reconstruction unit */
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RF_ParityConfig_t parityConfig; /* identifies the RAID architecture to
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* be used */
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RF_DiskQueueType_t diskQueueType; /* 'f' = fifo, 'c' = cvscan,
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* not used in kernel */
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char maxOutstandingDiskReqs; /* # concurrent reqs to be sent to a
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* disk. not used in kernel. */
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char debugVars[RF_MAXDBGV][50]; /* space for specifying debug
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* variables & their values */
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unsigned int layoutSpecificSize; /* size in bytes of
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* layout-specific info */
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void *layoutSpecific; /* a pointer to a layout-specific structure to
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* be copied in */
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int force; /* if !0, ignore many fatal
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configuration conditions */
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/*
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"force" is used to override cases where the component labels would
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indicate that configuration should not proceed without user
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intervention
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*/
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};
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#ifndef _KERNEL
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int rf_MakeConfig(char *configname, RF_Config_t * cfgPtr);
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int rf_MakeLayoutSpecificNULL(FILE * fp, RF_Config_t * cfgPtr, void *arg);
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int rf_MakeLayoutSpecificDeclustered(FILE * configfp, RF_Config_t * cfgPtr, void *arg);
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void *rf_ReadSpareTable(RF_SparetWait_t * req, char *fname);
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#endif /* !_KERNEL */
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#endif /* !_RF__RF_CONFIGURE_H_ */
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