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Diffstat (limited to 'sys/dev/vinum/vinumobj.h')
| -rw-r--r-- | sys/dev/vinum/vinumobj.h | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/sys/dev/vinum/vinumobj.h b/sys/dev/vinum/vinumobj.h deleted file mode 100644 index d6a4d87..0000000 --- a/sys/dev/vinum/vinumobj.h +++ /dev/null @@ -1,321 +0,0 @@ -/*- - * Copyright (c) 1997, 1998, 1999 - * Nan Yang Computer Services Limited. All rights reserved. - * - * Parts copyright (c) 1997, 1998 Cybernet Corporation, NetMAX project. - * - * Written by Greg Lehey - * - * This software is distributed under the so-called ``Berkeley - * License'': - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Nan Yang Computer - * Services Limited. - * 4. Neither the name of the Company nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * This software is provided ``as is'', and any express or implied - * warranties, including, but not limited to, the implied warranties of - * merchantability and fitness for a particular purpose are disclaimed. - * In no event shall the company or contributors be liable for any - * direct, indirect, incidental, special, exemplary, or consequential - * damages (including, but not limited to, procurement of substitute - * goods or services; loss of use, data, or profits; or business - * interruption) however caused and on any theory of liability, whether - * in contract, strict liability, or tort (including negligence or - * otherwise) arising in any way out of the use of this software, even if - * advised of the possibility of such damage. - * - * $Id: vinumobj.h,v 1.7 2003/05/23 01:08:58 grog Exp $ - * $FreeBSD$ - */ - -/* - * Definitions of Vinum objects: drive, subdisk, plex and volume. - * This file is included both by userland programs and by kernel code. - * The userland structures are a subset of the kernel structures, and - * all userland fields are at the beginning, so that a simple copy in - * the length of the userland structure will be sufficient. In order - * to perform this copy, vinumioctl must know both structures, so it - * includes this file again with _KERNEL reset. - */ - -#ifndef _KERNEL -/* - * Flags for all objects. Most of them only apply - * to specific objects, but we currently have - * space for all in any 32 bit flags word. - */ -enum objflags { - VF_LOCKED = 1, /* somebody has locked access to this object */ - VF_LOCKING = 2, /* we want access to this object */ - VF_OPEN = 4, /* object has openers */ - VF_WRITETHROUGH = 8, /* volume: write through */ - VF_INITED = 0x10, /* unit has been initialized */ - VF_WLABEL = 0x20, /* label area is writable */ - VF_LABELLING = 0x40, /* unit is currently being labelled */ - VF_WANTED = 0x80, /* someone is waiting to obtain a lock */ - VF_RAW = 0x100, /* raw volume (no file system) */ - VF_LOADED = 0x200, /* module is loaded */ - VF_CONFIGURING = 0x400, /* somebody is changing the config */ - VF_WILL_CONFIGURE = 0x800, /* somebody wants to change the config */ - VF_CONFIG_INCOMPLETE = 0x1000, /* haven't finished changing the config */ - VF_CONFIG_SETUPSTATE = 0x2000, /* set a volume up if all plexes are empty */ - VF_READING_CONFIG = 0x4000, /* we're reading config database from disk */ - VF_FORCECONFIG = 0x8000, /* configure drives even with different names */ - VF_NEWBORN = 0x10000, /* for objects: we've just created it */ - VF_CONFIGURED = 0x20000, /* for drives: we read the config */ - VF_STOPPING = 0x40000, /* for vinum_conf: stop on last close */ - VF_DAEMONOPEN = 0x80000, /* the daemon has us open (only superdev) */ - VF_CREATED = 0x100000, /* for volumes: freshly created, more then new */ - VF_HOTSPARE = 0x200000, /* for drives: use as hot spare */ - VF_RETRYERRORS = 0x400000, /* don't down subdisks on I/O errors */ - VF_HASDEBUG = 0x800000, /* set if we support debug */ -}; - -#endif - -/* Global configuration information for the vinum subsystem */ -#ifdef _KERNEL -struct _vinum_conf -#else -struct __vinum_conf -#endif -{ - int version; /* version of structures */ -#ifdef _KERNEL - /* Pointers to vinum structures */ - struct drive *drive; - struct sd *sd; - struct plex *plex; - struct volume *volume; -#else - /* Pointers to vinum structures */ - struct _drive *drive; - struct _sd *sd; - struct _plex *plex; - struct _volume *volume; -#endif - - /* the number allocated of each object */ - int drives_allocated; - int subdisks_allocated; - int plexes_allocated; - int volumes_allocated; - - /* and the number currently in use */ - /* - * Note that drives_used is not valid during drive recognition - * (vinum_scandisk and friends). Many invalid drives are added and - * later removed; the count isn't correct until we leave - * vinum_scandisk. - */ - int drives_used; - int subdisks_used; - int plexes_used; - int volumes_used; - - int flags; /* see above */ - -#define VINUM_MAXACTIVE 30000 /* maximum number of active requests */ - int active; /* current number of requests outstanding */ - int maxactive; /* maximum number of requests ever outstanding */ -#ifdef _KERNEL -#ifdef VINUMDEBUG - struct request *lastrq; - struct buf *lastbuf; -#endif -#endif -}; - -/* Use these defines to simplify code */ -#define DRIVE vinum_conf.drive -#define SD vinum_conf.sd -#define PLEX vinum_conf.plex -#define VOL vinum_conf.volume -#define VFLAGS vinum_conf.flags - -/* - * A drive corresponds to a disk slice. We use a different term to show - * the difference in usage: it doesn't have to be a slice, and could - * theoretically be a complete, unpartitioned disk - */ - -#ifdef _KERNEL -struct drive -#else -struct _drive -#endif -{ - char devicename[MAXDRIVENAME]; /* name of the slice it's on */ - struct vinum_label label; /* and the label information */ - enum drivestate state; /* current state */ - int flags; /* flags */ - int subdisks_allocated; /* number of entries in sd */ - int subdisks_used; /* and the number used */ - int blocksize; /* size of fs blocks */ - int pid; /* of locker */ - u_int64_t sectors_available; /* number of sectors still available */ - int secsperblock; - int lasterror; /* last error on drive */ - int driveno; /* index of drive in vinum_conf */ - int opencount; /* number of up subdisks */ - u_int64_t reads; /* number of reads on this drive */ - u_int64_t writes; /* number of writes on this drive */ - u_int64_t bytes_read; /* number of bytes read */ - u_int64_t bytes_written; /* number of bytes written */ -#define DRIVE_MAXACTIVE 30000 /* maximum number of active requests */ - int active; /* current number of requests outstanding */ - int maxactive; /* maximum number of requests ever outstanding */ - int freelist_size; /* number of entries alloced in free list */ - int freelist_entries; /* number of entries used in free list */ - struct drive_freelist *freelist; /* sorted list of free space on drive */ -#ifdef _KERNEL - u_int sectorsize; - off_t mediasize; - struct cdev *dev; /* device information */ -#ifdef VINUMDEBUG - char lockfilename[16]; /* name of file from which we were locked */ - int lockline; /* and the line number */ -#endif -#endif -}; - -#ifdef _KERNEL -struct sd -#else -struct _sd -#endif -{ - char name[MAXSDNAME]; /* name of subdisk */ - enum sdstate state; /* state */ - int flags; - int lasterror; /* last error occurred */ - /* offsets in blocks */ - int64_t driveoffset; /* offset on drive */ - /* - * plexoffset is the offset from the beginning - * of the plex to the very first part of the - * subdisk, in sectors. For striped, RAID-4 and - * RAID-5 plexes, only the first stripe is - * located at this offset - */ - int64_t plexoffset; /* offset in plex */ - u_int64_t sectors; /* and length in sectors */ - int sectorsize; /* sector size for DIOCGSECTORSIZE */ - int plexno; /* index of plex, if it belongs */ - int driveno; /* index of the drive on which it is located */ - int sdno; /* our index in vinum_conf */ - int plexsdno; /* and our number in our plex */ - /* (undefined if no plex) */ - u_int64_t reads; /* number of reads on this subdisk */ - u_int64_t writes; /* number of writes on this subdisk */ - u_int64_t bytes_read; /* number of bytes read */ - u_int64_t bytes_written; /* number of bytes written */ - /* revive parameters */ - u_int64_t revived; /* block number of current revive request */ - int revive_blocksize; /* revive block size (bytes) */ - int revive_interval; /* and time to wait between transfers */ - pid_t reviver; /* PID of reviving process */ - /* init parameters */ - u_int64_t initialized; /* block number of current init request */ - int init_blocksize; /* init block size (bytes) */ - int init_interval; /* and time to wait between transfers */ -#ifdef _KERNEL - struct request *waitlist; /* list of requests waiting on revive op */ - struct cdev *dev; /* associated device */ -#endif -}; - -#ifdef _KERNEL -struct plex -#else -struct _plex -#endif -{ - enum plexorg organization; /* Plex organization */ - enum plexstate state; /* and current state */ - u_int64_t length; /* total length of plex (sectors) */ - int flags; - int stripesize; /* size of stripe or raid band, in sectors */ - int sectorsize; /* sector size for DIOCGSECTORSIZE */ - int subdisks; /* number of associated subdisks */ - int subdisks_allocated; /* number of subdisks allocated space for */ - int *sdnos; /* list of component subdisks */ - int plexno; /* index of plex in vinum_conf */ - int volno; /* index of volume */ - int volplexno; /* number of plex in volume */ - /* Statistics */ - u_int64_t reads; /* number of reads on this plex */ - u_int64_t writes; /* number of writes on this plex */ - u_int64_t bytes_read; /* number of bytes read */ - u_int64_t bytes_written; /* number of bytes written */ - u_int64_t recovered_reads; /* number of recovered read operations */ - u_int64_t degraded_writes; /* number of degraded writes */ - u_int64_t parityless_writes; /* number of parityless writes */ - u_int64_t multiblock; /* requests that needed more than one block */ - u_int64_t multistripe; /* requests that needed more than one stripe */ - int sddowncount; /* number of subdisks down */ - /* Lock information */ - int usedlocks; /* number currently in use */ - int lockwaits; /* and number of waits for locks */ - off_t checkblock; /* block number for parity op */ - char name[MAXPLEXNAME]; /* name of plex */ -#ifdef _KERNEL - struct rangelock *lock; /* ranges of locked addresses */ - struct mtx *lockmtx; /* lock mutex, one of plexmutex [] */ - daddr_t last_addr; /* last address read from this plex */ - struct cdev *dev; /* associated device */ -#endif -}; - -#ifdef _KERNEL -struct volume -#else -struct _volume -#endif -{ - char name[MAXVOLNAME]; /* name of volume */ - enum volumestate state; /* current state */ - int plexes; /* number of plexes */ - int preferred_plex; /* index of plex to read from, - * -1 for round-robin */ - /* - * index of plex used for last read, for - * round-robin. - */ - int last_plex_read; - int volno; /* volume number */ - int flags; /* status and configuration flags */ - int openflags; /* flags supplied to last open(2) */ - u_int64_t size; /* size of volume */ - int blocksize; /* logical block size */ - int sectorsize; /* sector size for DIOCGSECTORSIZE */ - int active; /* number of outstanding requests active */ - int subops; /* and the number of suboperations */ - /* Statistics */ - u_int64_t bytes_read; /* number of bytes read */ - u_int64_t bytes_written; /* number of bytes written */ - u_int64_t reads; /* number of reads on this volume */ - u_int64_t writes; /* number of writes on this volume */ - u_int64_t recovered_reads; /* reads recovered from another plex */ - /* - * Unlike subdisks in the plex, space for the - * plex pointers is static. - */ - int plex[MAXPLEX]; /* index of plexes */ -#ifdef _KERNEL - struct cdev *dev; /* associated device */ -#endif -}; |
