mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-18 10:35:55 +00:00
cb5eba5e09
of the struct plex, which tore apart the mutex linked lists when the plex table was expanded. Now we maintain a pool of mutexes (currently 32) to be shared by all plexes. This is still a lot better than the splhigh() method used in other architectures. update_volume_config: Remove redundant diskconfig parameter. expand_table: Add parameters file and line if we're debugging. Approved by: re (jhb)
264 lines
9.1 KiB
C
264 lines
9.1 KiB
C
/*-
|
||
* Copyright (c) 1997, 1998
|
||
* Nan Yang Computer Services Limited. All rights reserved.
|
||
*
|
||
* 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: vinumext.h,v 1.33 2003/05/23 00:57:48 grog Exp $
|
||
* $FreeBSD$
|
||
*/
|
||
|
||
/* vinumext.h: external definitions */
|
||
|
||
/* *sigh* We still need this at the moment. */
|
||
#ifdef _KERNEL
|
||
extern struct _vinum_conf vinum_conf; /* configuration information */
|
||
extern struct mtx plexmutex[]; /* mutexes for plexes to use */
|
||
#else
|
||
extern struct __vinum_conf vinum_conf; /* configuration information */
|
||
#endif
|
||
|
||
#ifdef VINUMDEBUG
|
||
extern int debug; /* debug flags */
|
||
#endif
|
||
|
||
/* Physical read and write drive */
|
||
#define read_drive(a, b, c, d) driveio (a, b, c, d, BIO_READ)
|
||
#define write_drive(a, b, c, d) driveio (a, b, c, d, BIO_WRITE)
|
||
|
||
#define CHECKALLOC(ptr, msg) \
|
||
if (ptr == NULL) \
|
||
{ \
|
||
printf (msg); \
|
||
longjmp (command_fail, -1); \
|
||
}
|
||
#ifndef _KERNEL
|
||
struct vnode;
|
||
struct thread;
|
||
#endif
|
||
|
||
#ifdef _KERNEL
|
||
int vinum_inactive(int);
|
||
void free_vinum(int);
|
||
int give_sd_to_plex(int plexno, int sdno);
|
||
void give_sd_to_drive(int sdno);
|
||
int give_plex_to_volume(int, int, int);
|
||
struct drive *check_drive(char *);
|
||
enum drive_label_info read_drive_label(struct drive *, int);
|
||
int parse_config(char *, struct keywordset *, int);
|
||
int parse_user_config(char *cptr, struct keywordset *keyset);
|
||
u_int64_t sizespec(char *spec);
|
||
int volume_index(struct volume *volume);
|
||
int plex_index(struct plex *plex);
|
||
int sd_index(struct sd *sd);
|
||
int drive_index(struct drive *drive);
|
||
int my_plex(int volno, int plexno);
|
||
int my_sd(int plexno, int sdno);
|
||
int get_empty_drive(void);
|
||
int find_drive(const char *name, int create);
|
||
int find_drive_by_name(const char *devname, int create);
|
||
int get_empty_sd(void);
|
||
int find_subdisk(const char *name, int create);
|
||
void return_drive_space(int driveno, int64_t offset, int length);
|
||
void free_sd(int sdno);
|
||
void free_volume(int volno);
|
||
int get_empty_plex(void);
|
||
int find_plex(const char *name, int create);
|
||
void free_plex(int plexno);
|
||
int get_empty_volume(void);
|
||
int find_volume(const char *name, int create);
|
||
void config_subdisk(int);
|
||
void config_plex(int);
|
||
void config_volume(int);
|
||
void config_drive(int);
|
||
void updateconfig(int);
|
||
void update_sd_config(int sdno, int kernelstate);
|
||
void update_plex_config(int plexno, int kernelstate);
|
||
void update_volume_config(int volno);
|
||
void update_config(void);
|
||
void drive_io_done(struct buf *);
|
||
void save_config(void);
|
||
void daemon_save_config(void);
|
||
void write_config(char *, int);
|
||
int start_config(int);
|
||
void finish_config(int);
|
||
void remove(struct vinum_ioctl_msg *msg);
|
||
void remove_drive_entry(int driveno, int force);
|
||
void remove_sd_entry(int sdno, int force, int recurse);
|
||
void remove_plex_entry(int plexno, int force, int recurse);
|
||
void remove_volume_entry(int volno, int force, int recurse);
|
||
|
||
void checkdiskconfig(char *);
|
||
int open_drive(struct drive *, struct thread *, int);
|
||
void close_drive(struct drive *drive);
|
||
void close_locked_drive(struct drive *drive);
|
||
int driveio(struct drive *, char *, size_t, off_t, int);
|
||
int set_drive_parms(struct drive *drive);
|
||
int init_drive(struct drive *, int);
|
||
/* void throw_rude_remark (int, struct _ioctl_reply *, char *, ...); XXX */
|
||
void throw_rude_remark(int, char *,...);
|
||
|
||
void format_config(char *config, int len);
|
||
void checkkernel(char *op);
|
||
void free_drive(struct drive *drive);
|
||
void down_drive(struct drive *drive);
|
||
void remove_drive(int driveno);
|
||
|
||
int vinum_scandisk(char *drivename);
|
||
|
||
/* I/O */
|
||
d_open_t vinumopen;
|
||
d_close_t vinumclose;
|
||
d_strategy_t vinumstrategy;
|
||
d_ioctl_t vinumioctl;
|
||
|
||
int vinum_super_ioctl(dev_t, u_long, caddr_t);
|
||
int vinumstart(struct buf *bp, int reviveok);
|
||
int launch_requests(struct request *rq, int reviveok);
|
||
void sdio(struct buf *bp);
|
||
|
||
/* XXX Do we need this? */
|
||
int vinumpart(dev_t);
|
||
|
||
extern jmp_buf command_fail; /* return here if config fails */
|
||
|
||
#ifdef VINUMDEBUG
|
||
/* Memory allocation and request tracing */
|
||
void vinum_meminfo(caddr_t data);
|
||
int vinum_mallocinfo(caddr_t data);
|
||
int vinum_rqinfo(caddr_t data);
|
||
void LongJmp(jmp_buf, int);
|
||
char *basename(char *);
|
||
#endif
|
||
|
||
#ifdef VINUMDEBUG
|
||
void expand_table(void **, int, int, char *, int);
|
||
#else
|
||
void expand_table(void **, int, int);
|
||
#endif
|
||
|
||
struct disklabel;
|
||
struct request;
|
||
struct rqgroup *allocrqg(struct request *rq, int elements);
|
||
void deallocrqg(struct rqgroup *rqg);
|
||
|
||
/* Device number decoding */
|
||
int Volno(dev_t x);
|
||
int Plexno(dev_t x);
|
||
int Sdno(dev_t x);
|
||
|
||
/* State transitions */
|
||
int set_drive_state(int driveno, enum drivestate state, enum setstateflags flags);
|
||
int set_sd_state(int sdno, enum sdstate state, enum setstateflags flags);
|
||
enum requeststatus checksdstate(struct sd *sd, struct request *rq, daddr_t diskaddr, daddr_t diskend);
|
||
int set_plex_state(int plexno, enum plexstate state, enum setstateflags flags);
|
||
int set_volume_state(int volumeno, enum volumestate state, enum setstateflags flags);
|
||
void update_sd_state(int sdno);
|
||
void forceup(int plexno);
|
||
void update_plex_state(int plexno);
|
||
void update_volume_state(int volno);
|
||
void invalidate_subdisks(struct plex *, enum sdstate);
|
||
void get_volume_label(char *name, int plexes, u_int64_t size, struct disklabel *lp);
|
||
int write_volume_label(int);
|
||
void start_object(struct vinum_ioctl_msg *);
|
||
void stop_object(struct vinum_ioctl_msg *);
|
||
void setstate(struct vinum_ioctl_msg *msg);
|
||
void setstate_by_force(struct vinum_ioctl_msg *msg);
|
||
void vinum_label(int);
|
||
int vinum_writedisklabel(struct volume *, struct disklabel *);
|
||
int initsd(int, int);
|
||
struct buf *parityrebuild(struct plex *, u_int64_t, int, enum parityop, struct rangelock **, off_t *);
|
||
enum requeststatus sddownstate(struct request *rq);
|
||
|
||
int restart_plex(int plexno);
|
||
int revive_read(struct sd *sd);
|
||
int revive_block(int sdno);
|
||
void parityops(struct vinum_ioctl_msg *);
|
||
|
||
/* Auxiliary functions */
|
||
enum sdstates sdstatemap(struct plex *plex);
|
||
enum volplexstate vpstate(struct plex *plex);
|
||
#endif
|
||
|
||
struct drive *validdrive(int driveno, struct _ioctl_reply *);
|
||
struct sd *validsd(int sdno, struct _ioctl_reply *);
|
||
struct plex *validplex(int plexno, struct _ioctl_reply *);
|
||
struct volume *validvol(int volno, struct _ioctl_reply *);
|
||
void resetstats(struct vinum_ioctl_msg *msg);
|
||
|
||
/* Locking */
|
||
#ifdef VINUMDEBUG
|
||
int lockdrive(struct drive *drive, char *, int);
|
||
#else
|
||
int lockdrive(struct drive *drive);
|
||
#endif
|
||
void unlockdrive(struct drive *drive);
|
||
int lockvol(struct volume *vol);
|
||
void unlockvol(struct volume *vol);
|
||
int lockplex(struct plex *plex);
|
||
void unlockplex(struct plex *plex);
|
||
struct rangelock *lockrange(daddr_t stripe, struct buf *bp, struct plex *plex);
|
||
int lock_config(void);
|
||
void unlock_config(void);
|
||
|
||
/* D<>mon */
|
||
|
||
void vinum_daemon(void);
|
||
int vinum_finddaemon(void);
|
||
int vinum_setdaemonopts(int);
|
||
extern struct daemonq *daemonq; /* daemon's work queue */
|
||
extern struct daemonq *dqend; /* and the end of the queue */
|
||
extern struct cdevsw vinum_cdevsw;
|
||
|
||
#undef Free /* defined in some funny net stuff */
|
||
#ifdef _KERNEL
|
||
#ifdef VINUMDEBUG
|
||
#define Malloc(x) MMalloc ((x), __FILE__, __LINE__) /* show where we came from */
|
||
#define Free(x) FFree ((x), __FILE__, __LINE__) /* show where we came from */
|
||
caddr_t MMalloc(int size, char *, int);
|
||
void FFree(void *mem, char *, int);
|
||
#define LOCKDRIVE(d) lockdrive (d, __FILE__, __LINE__)
|
||
#else
|
||
#define Malloc(x) malloc((x), M_DEVBUF, \
|
||
curthread->td_proc->p_intr_nesting_level == 0? M_WAITOK: M_NOWAIT)
|
||
#define Free(x) free((x), M_DEVBUF)
|
||
#define LOCKDRIVE(d) lockdrive (d)
|
||
#endif
|
||
#else
|
||
#define Malloc(x) malloc ((x)) /* just the size */
|
||
#define Free(x) free ((x)) /* just the address */
|
||
#endif
|
||
|
||
/* Local Variables: */
|
||
/* fill-column: 50 */
|
||
/* End: */
|