Annotation of sys/dev/raidframe/rf_disks.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: rf_disks.h,v 1.5 2002/12/16 07:01:03 tdeval Exp $ */
! 2: /* $NetBSD: rf_disks.h,v 1.8 2000/03/27 03:25:17 oster Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1995 Carnegie-Mellon University.
! 6: * All rights reserved.
! 7: *
! 8: * Author: Mark Holland
! 9: *
! 10: * Permission to use, copy, modify and distribute this software and
! 11: * its documentation is hereby granted, provided that both the copyright
! 12: * notice and this permission notice appear in all copies of the
! 13: * software, derivative works or modified versions, and any portions
! 14: * thereof, and that both notices appear in supporting documentation.
! 15: *
! 16: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
! 17: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
! 18: * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
! 19: *
! 20: * Carnegie Mellon requests users of this software to return to
! 21: *
! 22: * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
! 23: * School of Computer Science
! 24: * Carnegie Mellon University
! 25: * Pittsburgh PA 15213-3890
! 26: *
! 27: * any improvements or extensions that they make and grant Carnegie the
! 28: * rights to redistribute these changes.
! 29: */
! 30:
! 31: /*
! 32: * rf_disks.h -- Header file for code related to physical disks.
! 33: */
! 34:
! 35: #ifndef _RF__RF_DISKS_H_
! 36: #define _RF__RF_DISKS_H_
! 37:
! 38: #include <sys/types.h>
! 39:
! 40: #include "rf_archs.h"
! 41: #include "rf_types.h"
! 42:
! 43: #if defined(__NetBSD__)
! 44: #include "rf_netbsd.h"
! 45: #elif defined(__OpenBSD__)
! 46: #include "rf_openbsd.h"
! 47: #endif
! 48:
! 49: /*
! 50: * A physical disk can be in one of several states:
! 51: * IF YOU ADD A STATE, CHECK TO SEE IF YOU NEED TO MODIFY RF_DEAD_DISK() BELOW.
! 52: */
! 53: enum RF_DiskStatus_e {
! 54: rf_ds_optimal, /* No problems. */
! 55: rf_ds_failed, /* Reconstruction ongoing. */
! 56: rf_ds_reconstructing, /*
! 57: * Reconstruction complete to spare, dead disk
! 58: * not yet replaced.
! 59: */
! 60: rf_ds_dist_spared, /*
! 61: * Reconstruction complete to distributed
! 62: * spare space, dead disk not yet replaced.
! 63: */
! 64: rf_ds_spared, /*
! 65: * Reconstruction complete to distributed
! 66: * spare space, dead disk not yet replaced.
! 67: */
! 68: rf_ds_spare, /* An available spare disk. */
! 69: rf_ds_used_spare /*
! 70: * A spare which has been used, and hence is
! 71: * not available.
! 72: */
! 73: };
! 74: typedef enum RF_DiskStatus_e RF_DiskStatus_t;
! 75:
! 76: struct RF_RaidDisk_s {
! 77: char devname[56]; /* Name of device file. */
! 78: RF_DiskStatus_t status; /* Whether it is up or down. */
! 79: RF_RowCol_t spareRow; /*
! 80: * If in status "spared", this
! 81: * identifies the spare disk.
! 82: */
! 83: RF_RowCol_t spareCol; /*
! 84: * If in status "spared", this
! 85: * identifies the spare disk.
! 86: */
! 87: RF_SectorCount_t numBlocks; /*
! 88: * Number of blocks, obtained via
! 89: * READ CAPACITY.
! 90: */
! 91: int blockSize;
! 92: RF_SectorCount_t partitionSize; /*
! 93: * The *actual* and *full* size of
! 94: * the partition, from the disklabel.
! 95: */
! 96: int auto_configured; /*
! 97: * 1 if this component was
! 98: * autoconfigured. 0 otherwise.
! 99: */
! 100: dev_t dev;
! 101: };
! 102:
! 103: /*
! 104: * An RF_DiskOp_t ptr is really a pointer to a UAGT_CCB, but I want
! 105: * to isolate the CAM layer from all other layers, so I typecast to/from
! 106: * RF_DiskOp_t * (i.e. void *) at the interfaces.
! 107: */
! 108: typedef void RF_DiskOp_t;
! 109:
! 110: /* If a disk is in any of these states, it is inaccessible. */
! 111: #define RF_DEAD_DISK(_dstat_) \
! 112: (((_dstat_) == rf_ds_spared) || \
! 113: ((_dstat_) == rf_ds_reconstructing) || \
! 114: ((_dstat_) == rf_ds_failed) || \
! 115: ((_dstat_) == rf_ds_dist_spared))
! 116:
! 117: #ifdef _KERNEL
! 118: #if defined(__NetBSD__)
! 119: #include "rf_netbsd.h"
! 120: #elif defined(__OpenBSD__)
! 121: #include "rf_openbsd.h"
! 122: #endif
! 123:
! 124: int rf_ConfigureDisks(RF_ShutdownList_t **, RF_Raid_t *, RF_Config_t *);
! 125: int rf_ConfigureSpareDisks(RF_ShutdownList_t **, RF_Raid_t *, RF_Config_t *);
! 126: int rf_ConfigureDisk(RF_Raid_t *, char *, RF_RaidDisk_t *,
! 127: RF_RowCol_t, RF_RowCol_t);
! 128: int rf_AutoConfigureDisks(RF_Raid_t *, RF_Config_t *, RF_AutoConfig_t *);
! 129: int rf_CheckLabels(RF_Raid_t *, RF_Config_t *);
! 130: int rf_add_hot_spare(RF_Raid_t *, RF_SingleComponent_t *);
! 131: int rf_remove_hot_spare(RF_Raid_t *, RF_SingleComponent_t *);
! 132: int rf_delete_component(RF_Raid_t *, RF_SingleComponent_t *);
! 133: int rf_incorporate_hot_spare(RF_Raid_t *, RF_SingleComponent_t *);
! 134: #endif /* _KERNEL */
! 135:
! 136: #endif /* !_RF__RF_DISKS_H_ */
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