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/* $OpenBSD: rf_disks.h,v 1.5 2002/12/16 07:01:03 tdeval Exp $ */
/* $NetBSD: rf_disks.h,v 1.8 2000/03/27 03:25:17 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_disks.h -- Header file for code related to physical disks.
*/
#ifndef _RF__RF_DISKS_H_
#define _RF__RF_DISKS_H_
#include <sys/types.h>
#include "rf_archs.h"
#include "rf_types.h"
#if defined(__NetBSD__)
#include "rf_netbsd.h"
#elif defined(__OpenBSD__)
#include "rf_openbsd.h"
#endif
/*
* A physical disk can be in one of several states:
* IF YOU ADD A STATE, CHECK TO SEE IF YOU NEED TO MODIFY RF_DEAD_DISK() BELOW.
*/
enum RF_DiskStatus_e {
rf_ds_optimal, /* No problems. */
rf_ds_failed, /* Reconstruction ongoing. */
rf_ds_reconstructing, /*
* Reconstruction complete to spare, dead disk
* not yet replaced.
*/
rf_ds_dist_spared, /*
* Reconstruction complete to distributed
* spare space, dead disk not yet replaced.
*/
rf_ds_spared, /*
* Reconstruction complete to distributed
* spare space, dead disk not yet replaced.
*/
rf_ds_spare, /* An available spare disk. */
rf_ds_used_spare /*
* A spare which has been used, and hence is
* not available.
*/
};
typedef enum RF_DiskStatus_e RF_DiskStatus_t;
struct RF_RaidDisk_s {
char devname[56]; /* Name of device file. */
RF_DiskStatus_t status; /* Whether it is up or down. */
RF_RowCol_t spareRow; /*
* If in status "spared", this
* identifies the spare disk.
*/
RF_RowCol_t spareCol; /*
* If in status "spared", this
* identifies the spare disk.
*/
RF_SectorCount_t numBlocks; /*
* Number of blocks, obtained via
* READ CAPACITY.
*/
int blockSize;
RF_SectorCount_t partitionSize; /*
* The *actual* and *full* size of
* the partition, from the disklabel.
*/
int auto_configured; /*
* 1 if this component was
* autoconfigured. 0 otherwise.
*/
dev_t dev;
};
/*
* An RF_DiskOp_t ptr is really a pointer to a UAGT_CCB, but I want
* to isolate the CAM layer from all other layers, so I typecast to/from
* RF_DiskOp_t * (i.e. void *) at the interfaces.
*/
typedef void RF_DiskOp_t;
/* If a disk is in any of these states, it is inaccessible. */
#define RF_DEAD_DISK(_dstat_) \
(((_dstat_) == rf_ds_spared) || \
((_dstat_) == rf_ds_reconstructing) || \
((_dstat_) == rf_ds_failed) || \
((_dstat_) == rf_ds_dist_spared))
#ifdef _KERNEL
#if defined(__NetBSD__)
#include "rf_netbsd.h"
#elif defined(__OpenBSD__)
#include "rf_openbsd.h"
#endif
int rf_ConfigureDisks(RF_ShutdownList_t **, RF_Raid_t *, RF_Config_t *);
int rf_ConfigureSpareDisks(RF_ShutdownList_t **, RF_Raid_t *, RF_Config_t *);
int rf_ConfigureDisk(RF_Raid_t *, char *, RF_RaidDisk_t *,
RF_RowCol_t, RF_RowCol_t);
int rf_AutoConfigureDisks(RF_Raid_t *, RF_Config_t *, RF_AutoConfig_t *);
int rf_CheckLabels(RF_Raid_t *, RF_Config_t *);
int rf_add_hot_spare(RF_Raid_t *, RF_SingleComponent_t *);
int rf_remove_hot_spare(RF_Raid_t *, RF_SingleComponent_t *);
int rf_delete_component(RF_Raid_t *, RF_SingleComponent_t *);
int rf_incorporate_hot_spare(RF_Raid_t *, RF_SingleComponent_t *);
#endif /* _KERNEL */
#endif /* !_RF__RF_DISKS_H_ */
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