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/* $OpenBSD: rf_configure.h,v 1.2 1999/02/16 00:02:26 niklas Exp $ */
/* $NetBSD: rf_configure.h,v 1.3 1999/02/05 00:06:06 oster Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Mark Holland
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/********************************
*
* rf_configure.h
*
* header file for raidframe configuration in the kernel version only.
* configuration is invoked via ioctl rather than at boot time
*
*******************************/
#ifndef _RF__RF_CONFIGURE_H_
#define _RF__RF_CONFIGURE_H_
#include "rf_archs.h"
#include "rf_types.h"
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/ioctl.h>
/* the raidframe configuration, passed down through an ioctl.
* the driver can be reconfigured (with total loss of data) at any time,
* but it must be shut down first.
*/
struct RF_Config_s {
RF_RowCol_t numRow, numCol, numSpare; /* number of rows, columns,
* and spare disks */
dev_t devs[RF_MAXROW][RF_MAXCOL]; /* device numbers for disks
* comprising array */
char devnames[RF_MAXROW][RF_MAXCOL][50]; /* device names */
dev_t spare_devs[RF_MAXSPARE]; /* device numbers for spare
* disks */
char spare_names[RF_MAXSPARE][50]; /* device names */
RF_SectorNum_t sectPerSU; /* sectors per stripe unit */
RF_StripeNum_t SUsPerPU;/* stripe units per parity unit */
RF_StripeNum_t SUsPerRU;/* stripe units per reconstruction unit */
RF_ParityConfig_t parityConfig; /* identifies the RAID architecture to
* be used */
RF_DiskQueueType_t diskQueueType; /* 'f' = fifo, 'c' = cvscan,
* not used in kernel */
char maxOutstandingDiskReqs; /* # concurrent reqs to be sent to a
* disk. not used in kernel. */
char debugVars[RF_MAXDBGV][50]; /* space for specifying debug
* variables & their values */
unsigned int layoutSpecificSize; /* size in bytes of
* layout-specific info */
void *layoutSpecific; /* a pointer to a layout-specific structure to
* be copied in */
};
#ifndef _KERNEL
int rf_MakeConfig(char *configname, RF_Config_t * cfgPtr);
int rf_MakeLayoutSpecificNULL(FILE * fp, RF_Config_t * cfgPtr, void *arg);
int rf_MakeLayoutSpecificDeclustered(FILE * configfp, RF_Config_t * cfgPtr, void *arg);
void *rf_ReadSpareTable(RF_SparetWait_t * req, char *fname);
#endif /* !_KERNEL */
#endif /* !_RF__RF_CONFIGURE_H_ */
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