/*- * 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 1.15 1998/09/29 05:17:56 grog Exp grog $ */ /* vinumext.h: external definitions */ extern struct _vinum_conf vinum_conf; /* configuration information */ #ifdef DEBUG extern debug; /* debug flags */ #endif #define CHECKALLOC(ptr, msg) \ if (ptr == NULL) \ { \ printf (msg); \ longjmp (command_fail, -1); \ } #ifndef KERNEL struct vnode; struct proc; #endif #ifdef KERNEL int give_sd_to_plex(int plexno, int sdno); int give_plex_to_volume(int volno, int plexno); int check_drive(char *); enum drive_label_info read_drive_label(struct drive *drive); int parse_config(char *, struct keywordset *); 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_dev(const char *devname, int create); int get_empty_sd(void); int find_subdisk(const char *name, int create); 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(void); void config_plex(void); void config_volume(void); void config_drive(void); 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, int kernelstate); void update_config(void); void drive_io_done(struct buf *); int save_config(void); void write_config(char *, int); int start_config(void); void finish_config(int); void remove(struct vinum_ioctl_msg *msg); void remove_drive_entry(int driveno, int force, int recurse); 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 checkernel(char *); int open_drive(struct drive *, struct proc *); void close_drive(struct drive *drive); int driveio(struct drive *, void *, size_t, off_t, int); /* #define read_drive(a, b, c, d) driveio (a, b, c, d, B_READ) #define write_drive(a, b, c, d) driveio (a, b, c, d, B_WRITE) */ int set_drive_parms(struct drive *drive); int init_drive(struct drive *); /* void throw_rude_remark (int, struct _ioctl_reply *, char *, ...); XXX */ void throw_rude_remark(int, char *,...); int read_drive(struct drive *drive, void *buf, size_t length, off_t offset); int write_drive(struct drive *drive, void *buf, size_t length, off_t offset); 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); /* I/O */ d_open_t vinumopen; d_close_t vinumclose; d_strategy_t vinumstrategy; d_ioctl_t vinumioctl; d_dump_t vinumdump; d_psize_t vinumsize; d_read_t vinumread; d_write_t vinumwrite; int vinumstart(struct buf *bp, int reviveok); int launch_requests(struct request *rq, int reviveok); /* XXX Do we need this? */ int vinumpart(dev_t); #ifdef DEBUG /* Memory allocation and request tracing */ void vinum_meminfo(caddr_t data); int vinum_mallocinfo(caddr_t data); int vinum_rqinfo(caddr_t data); #endif void expand_table(void **, int, int); void add_defective_region(struct plex *plex, off_t offset, size_t length); void add_unmapped_region(struct plex *plex, off_t offset, size_t length); void rebuild_plex_unmappedlist(struct plex *plex); struct request; struct rqgroup *allocrqg(struct request *rq, int elements); void deallocrqg(struct rqgroup *rqg); /* State transitions */ int set_drive_state(int driveno, enum drivestate state, int force); 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 get_volume_label(struct volume *vol, 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 vinum_label(int); int vinum_writedisklabel(struct volume *, struct disklabel *); int initsd(int); int restart_plex(int plexno); int revive_block(int plexno); /* Auxiliary functions */ enum sdstates sdstatemap(struct plex *plex, int *sddowncount); enum volplexstate vpstate(struct plex *plex); #endif enum keyword get_keyword(char *, struct keywordset *); void listconfig(void); char *drive_state(enum drivestate); char *volume_state(enum volumestate); char *plex_state(enum plexstate); char *plex_org(enum plexorg); char *sd_state(enum sdstate); enum drivestate DriveState(char *text); enum sdstate SdState(char *text); enum plexstate PlexState(char *text); enum volumestate VolState(char *text); 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 *); int tokenize(char *, char *[]); void resetstats(struct vinum_ioctl_msg *msg); /* Locking */ int lockvol(struct volume *vol); void unlockvol(struct volume *vol); int lockplex(struct plex *plex); void unlockplex(struct plex *plex); int lockrange(struct plex *plex, off_t first, off_t last); void unlockrange(struct plex *plex, off_t first, off_t last); int lock_config(void); void unlock_config(void);