/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2005 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _SYS_MDVAR_H #define _SYS_MDVAR_H #pragma ident "%Z%%M% %I% %E% SMI" #include #include #include #include #include #include #include #include #include #ifdef DEBUG #include #endif #include #include #include #include #include #include #include #include #include #ifdef __cplusplus extern "C" { #endif /* * defaults */ #define NMD_DEFAULT 128 /* number of metadevices */ #define MD_NOPS 25 /* number of misc modules */ #define MAXBOOTLIST 64 /* * Needed for backwards-compatibility with metadevices created under * 2.6 or earlier. Back then, a krwlock_t was twelve bytes. More * recently, it's four bytes. Since these get included in structures * written out to disk, we have to make sure we're using the largest * size. Things will get interesting if krwlock_t ever gets bigger * than twelve bytes. */ typedef union _md_krwlock { krwlock_t lock; struct { void *_opaque[3]; } xx; } md_krwlock_t; typedef struct { kmutex_t md_io_mx; /* counter mutex */ kcondvar_t md_io_cv; /* ioctl wait on if draining */ long io_cnt; /* number of I/Os */ long io_state; /* !0 if waiting on zero */ } md_set_io_t; typedef enum set_iostate { MD_SET_ACTIVE = 1, MD_SET_RELEASE = 2 }set_iostate_t; /* * for md_dev64_t translation */ struct md_xlate_table { dev32_t mini_devt; dev32_t targ_devt; }; extern struct md_xlate_table *md_tuple_table; /* * for major number translation */ struct md_xlate_major_table { char *drv_name; major_t targ_maj; }; extern struct md_xlate_major_table *md_major_tuple_table; extern int md_tuple_length; extern uint_t md_majortab_len; extern int md_in_upgrade; extern md_mn_nodeid_t md_mn_mynode_id; #define MD_UPGRADE (md_in_upgrade == 1) /* * Flags used during upgrade: * * md_keep_repl_state flag means that mddb should be kept in the format * that was found on disk (non-device id format vs. device id format). * This is used during the upgrade process when install is probing * for root disks so that the user can choose the one to be upgraded. * * md_devid_destroy flag is used to destroy device ids stored in the * metadevice state database (mddb). * * The md_devid_destroy flag is to be used only in a catastrophic failure * case. An example of this would be if a user upgrades firmware on all * disks where this causes the disks to now have different device id's. * The user would not be able to boot a mirror'd root filesystem since the * system would recognize none of the device id's stored in the mddb. * This flag would destroy all device id information stored in the mddb and * if the md_keep_repl_state flag was not set, the mddb would be reconverted * to device id format on SLVM startup and all of the device id * information would be regenerated. * * If the md_devid_destroy flag is set and the md_keep_repl_state flag is * set, the mddb's would have their device id information destroyed and * would be left in non-devid format since the device id information would * not be regenerated. * * This flag is not documented anywhere and is only to be used as a last * resort as in the described case or if a device driver has a bug where * device id's are found to not be unique. If device id's aren't unique, * the user could run without device id's until a patch is released for * that driver. */ extern int md_keep_repl_state; extern int md_devid_destroy; extern int mdmn_door_did; #ifdef _KERNEL extern door_handle_t mdmn_door_handle; #endif /* _KERNEL */ /* * An io_lock mechanism for raid, the MD_UL_XXXX bits are used for * convenience. */ typedef struct md_io_lock { ulong_t io_readercnt; /* number of unit readers */ ulong_t io_wanabecnt; /* # pending on becoming unit writer */ ulong_t io_lock; void *io_list_front; void *io_list_back; kmutex_t io_mx; kcondvar_t io_cv; kmutex_t io_list_mutex; /* list of waiting io */ kthread_id_t io_owner; /* writer thread */ } md_io_lock_t; /* * The following flags are in un_flag field of mdc_unit struct. */ #define MD_LABELED 0x1 /* First sector of the metadevice is a label */ #define MD_EFILABEL 0x2 /* This md has an EFI label and no vtoc */ /* * This is the number of bytes a DKIOCGETEFI ioctl returns * For now it's one time the header and once the size for a partition info */ #define MD_EFI_LABEL_SIZE (sizeof (efi_gpt_t) + sizeof (efi_gpe_t)) /* This is the number of bytes consumed by efi_gpe_PartitionName */ #define MD_EFI_PARTNAME_BYTES (EFI_PART_NAME_LEN * sizeof (ushort_t)) typedef enum hs_cmds { HS_GET, HS_FREE, HS_BAD, HSP_INCREF, HSP_DECREF, HS_MKDEV } hs_cmds_t; typedef struct md_link { struct md_link *ln_next; set_t ln_setno; uint_t ln_id; } md_link_t; typedef struct mdi_unit { md_link_t ui_link; ulong_t ui_readercnt; /* number of unit readers */ ulong_t ui_wanabecnt; /* # pending on becoming unit writer */ ulong_t ui_lock; kmutex_t ui_mx; kcondvar_t ui_cv; int ui_opsindex; uint_t ui_ocnt[OTYPCNT]; /* open counts */ md_io_lock_t *ui_io_lock; /* pointer to io lock */ kstat_t *ui_kstat; /* kernel statistics */ kthread_id_t ui_owner; /* writer thread */ uint_t ui_tstate; /* transient state bits */ uint_t ui_capab; /* Capability bits supported */ } mdi_unit_t; /* * Following are used with ui_lock * which is in the unit incore structure. */ #define MD_UL_WRITER 0x0001 /* Stall all new strategy calls */ #define MD_UL_WANABEWRITER 0x0002 #define MD_UL_OPENORCLOSE 0x0004 #define MD_UL_OPEN 0x0008 /* unit is open */ #define MD_UL_EXCL 0x0010 /* unit is open exclusively */ /* * The softpart open code may do an I/O to validate the watermarks * and should hold no open locks during this I/O. So, mark the unit * as OPENINPROGRESS and drop the locks. This will keep any other * softpart open's waiting until the validate has completed. */ #define MD_UL_OPENINPROGRESS 0x0020 /* Open in Progress */ /* * Following are used with ui_tstate to specify any transient states which * occur during metadevice operation. These are not written to the metadb as * they do not represent a failure of the underlying metadevice. * Transient errors are stored in the lower 16 bits and other transient * state is stored in the upper 16 bits. * MD_NOTOPENABLE should contain all the states that are set prior to an * open (by snarf) and that indicate that a metadevice cannot be opened. */ #define MD_DEV_ERRORED 0x0000ffff /* ui_tstate error bits */ #define MD_EOF_METADEVICE 0x00000001 /* EOF'd metadevice */ #define MD_64MD_ON_32KERNEL 0x00000002 /* 64bit metadev on 32bit kernel */ #define MD_INACCESSIBLE 0x00000004 /* metadevice unavailable */ #define MD_RETRYING 0x00010000 /* retrying errored failfast I/O */ #define MD_OPENLOCKED 0x00020000 /* MN: open locked before removing */ #define MD_ERR_PENDING 0x00040000 /* MN: error pending */ #define MD_ABR_CAP 0x00080000 /* MN: Application Based Recovery */ #define MD_DMR_CAP 0x00100000 /* MN: Directed Mirror Read */ #define MD_RELEASE_IOERR_DONE 0x00200000 /* ioerr console message done */ #define MD_RESYNC_NOT_DONE 0x00400000 /* resync not done yet */ /* A metadevice cannot be opened when these states are set */ #define MD_NOTOPENABLE (MD_EOF_METADEVICE|MD_64MD_ON_32KERNEL) typedef struct md_ioctl_lock { int l_flags; /* locks held */ mdi_unit_t *l_ui; /* unit for which lock is held */ } md_ioctl_lock_t; #define MD_MASTER_DROPPED 0x0001 #define MD_READER_HELD 0x0002 #define MD_WRITER_HELD 0x0004 #define MD_IO_HELD 0x0008 #define MD_ARRAY_READER 0x0010 #define MD_ARRAY_WRITER 0x0020 #define STALE_OK 0x0100 #define NO_OLD 0x0200 #define NO_LOCK 0x0400 #define MD_MT_IOCTL 0x80000 /* MD_GBL_IOCTL_LOCK not set */ #define IOLOCK md_ioctl_lock_t #define WR_LOCK MD_WRITER_HELD #define RD_LOCK MD_READER_HELD | STALE_OK #define ARRAY_WRITER MD_ARRAY_WRITER #define ARRAY_READER MD_ARRAY_READER #define WRITERS MD_WRITER_HELD | MD_IO_HELD | MD_ARRAY_WRITER #define READERS RD_LOCK | MD_ARRAY_READER #define IOLOCK_RETURN_IOCTLEND(code, lock) \ md_ioctl_lock_exit((code), (lock)->l_flags, (lock)->l_ui, TRUE) #define IOLOCK_RETURN(code, lock) \ md_ioctl_lock_exit((code), (lock)->l_flags, (lock)->l_ui, FALSE) #define IOLOCK_RETURN_RELEASE(code, lock) \ md_ioctl_releaselocks((code), (lock)->l_flags, (lock)->l_ui) #define IOLOCK_RETURN_REACQUIRE(lock) \ md_ioctl_reacquirelocks((lock)->l_flags, (lock)->l_ui) #define IOLOCK_INIT(lock) bzero((caddr_t)(lock), sizeof (*(lock))) /* * checks to be sure locks are held */ #define UNIT_WRITER_HELD(un) \ (MDI_UNIT(MD_SID(un))->ui_lock & MD_UL_WRITER) #define UNIT_READER_HELD(un) \ (MDI_UNIT(MD_SID(un))->ui_readercnt != 0) #define IO_WRITER_HELD(un) \ (MDI_UNIT(MD_SID(un))->ui_io_lock->io_lock & MD_UL_WRITER) #define IO_READER_HELD(un) \ (MDI_UNIT(MD_SID(un))->ui_io_lock->io_readercnt != 0) #ifdef DEBUG #define STAT_INC(statvar) \ statvar++ #define STAT_DEC(statvar) \ statvar-- #define STAT_ZERO(statvar) \ statvar = 0; #define STAT_MAX(statmax, statvar) \ { \ statvar++; \ if (statvar > statmax) \ statmax = statvar; \ } #define STAT_CHECK(statvar, value) \ { \ if (value) \ statvar++; \ } #else #define STAT_INC(statvar) #define STAT_DEC(statvar) #define STAT_ZERO(statvar) #define STAT_MAX(statmax, statvar) #define STAT_CHECK(statvar, value) #endif /* * bit map related macros */ #define setbit(a, i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY)) #define clrbit(a, i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) #define isset(a, i) ((a)[(i)/NBBY] & (1<<((i)%NBBY))) #define isclr(a, i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) typedef struct daemon_queue { int maxq_len; int qlen; int treqs; /* total number of requests */ struct daemon_queue *dq_next; struct daemon_queue *dq_prev; void (*dq_call)(); } daemon_queue_t; #define DAEMON_QUEUE daemon_queue_t dq; #ifdef _KERNEL #include #include #include #define MD_DEV2SET(d) (MD_MIN2SET(md_getminor(d))) #define MD_UNIT(m) (md_set[MD_MIN2SET(m)].s_un[MD_MIN2UNIT(m)]) #define MDI_UNIT(m) ((mdi_unit_t *) \ md_set[MD_MIN2SET(m)].s_ui[MD_MIN2UNIT(m)]) #define MD_VOIDUNIT(m) (md_set[MD_MIN2SET(m)].s_un[MD_MIN2UNIT(m)]) #define MDI_VOIDUNIT(m) (md_set[MD_MIN2SET(m)].s_ui[MD_MIN2UNIT(m)]) /* * This is the current maximum number of real disks per Virtual Disk. */ extern uint_t md_mdelay; /* md_mirror timeout delay */ #define MD_ADM_MINOR L_MAXMIN32 /* the minor number for md_admin */ #define MD_MDELAY (md_mdelay) #define NUM_USEC_IN_SEC 1000000 /* 1 million usec in a second */ #define ANY_SERVICE -1 /* md_get_named_service() wild card */ /* * daemon threads are used in multiple places in md. The following set of * structures and routines allow a common way to create and initialize them. * * md_requestq_entry_t - entry of creating request queues. * struct mdq_anchor - request queue header * * Functions associated with request queues: * * int init_requestq_entry - * void daemon_request - put a request on the queue. */ typedef struct md_requestq_entry { struct mdq_anchor *dispq_headp; int *num_threadsp; /* threads servicing the queue */ } md_requestq_entry_t; #define NULL_REQUESTQ_ENTRY(rqp)\ ((rqp)->dispq_headp == NULL || (rqp)->num_threadsp == NULL) /* this typedef is used to differentiate between the two call styles */ typedef enum callstyle { REQ_OLD, REQ_NEW } callstyle_t; #define daemon_request_new daemon_request typedef struct mdq_anchor { DAEMON_QUEUE kcondvar_t a_cv; /* Request has been put on queue */ kmutex_t a_mx; } mdq_anchor_t; typedef struct daemon_request { DAEMON_QUEUE kmutex_t dr_mx; int dr_pending; timeout_id_t dr_timeout_id; } daemon_request_t; typedef struct sv_dev { set_t setno; side_t side; mdkey_t key; } sv_dev_t; /* * Types of device probes */ typedef struct probe_req { DAEMON_QUEUE minor_t mnum; /* mnum of the metadevice to probe */ void *private_handle; /* private handle */ intptr_t (*probe_fcn)(); /* type of probeing to be done */ } probe_req_t; /* Global flags */ #define MD_NO_GBL_LOCKS_HELD 0x0000 /* currently holding no global locks */ #define MD_GBL_DAEMONS_LIVE 0x0001 /* master daemon has been started. */ #define MD_GBL_DAEMONS_DIE 0x0002 #define MD_GBL_HALTED 0x0004 /* driver is shut down */ /* Available bit was GBL_STALE 0x0008 */ #define MD_GBL_IOCTL_LOCK 0x0010 /* single-threads ioctls */ #define MD_GBL_HS_LOCK 0x0020 /* single-threads hotspares */ #define MD_GBL_OPEN 0x0040 /* admin is open */ #define MD_GBL_EXCL 0x0080 /* admin is open exclusively */ #define MD_OFLG_NULL 0x0000 /* Null flag */ #define MD_OFLG_CONT_ERRS 0x0001 /* Continue on open errors */ #define MD_OFLG_PROBEDEV 0x0002 /* force a simulated open */ #define MD_OFLG_ISINIT 0x0004 /* raid initialization */ #define MD_OFLG_FROMIOCTL 0x0008 /* Called from an ioctl handler */ typedef struct md_named_services { intptr_t (*md_service)(); char *md_name; } md_named_services_t; typedef enum md_snarfcmd {MD_SNARF_CLEANUP, MD_SNARF_DOIT} md_snarfcmd_t; typedef struct md_ops { int (*md_open)( dev_t *devp, int flag, int otyp, cred_t *credp, int md_oflags); int (*md_close)( dev_t dev, int flag, int otyp, cred_t *credp, int md_oflags); void (*md_strategy)( buf_t *bufp, int flag, void *private); int (*md_print)(); /* unused now */ int (*md_dump)( dev_t dev, caddr_t addr, daddr_t blkno, int nblk); int (*md_read)( dev_t dev, struct uio *uiop, cred_t *credp); int (*md_write)( dev_t dev, struct uio *uiop, cred_t *credp); int (*md_ioctl)( dev_t dev, int cmd, void *data, int mode, IOLOCK *lockp); int (*md_snarf)( md_snarfcmd_t cmd, set_t setno); int (*md_halt)(); int (*md_aread)( dev_t dev, struct aio_req *aiop, cred_t *credp); int (*md_awrite)( dev_t dev, struct aio_req *aiop, cred_t *credp); int (*md_imp_set)( set_t setno); md_named_services_t *md_services; md_krwlock_t md_link_rw; md_link_t *md_head; /* * NOTE: when TSlvm s10/onnv compatibility is not an issue: * o md_modid and md_locked should be deleted. * o md_mod should be added * ddi_modhandle_t md_mod; * and used instead of the md_mods array (md_mods should * be deleted). */ int md_modid; int md_locked; int md_selfindex; struct md_ops *md_next; md_driver_t md_driver; /* NOTE: TSlvm depends on offsets in and sizeof this structure */ } md_ops_t; /* macro to generate linkage for a md misc plugin module */ #define md_noop #define MD_PLUGIN_MISC_MODULE(desc, init_init, fini_uninit) \ static struct modlmisc modlmisc = { \ &mod_miscops, "Solaris Volume Manager " desc \ }; \ static struct modlinkage modlinkage = { \ MODREV_1, (void *)&modlmisc, NULL \ }; \ int \ _init(void) \ { \ int i; \ init_init; \ if ((i = mod_install(&modlinkage)) != 0) { \ fini_uninit; \ } \ return (i); \ } \ int \ _fini() \ { \ int i; \ if ((i = mod_remove(&modlinkage)) == 0) { \ fini_uninit; \ } \ return (i); \ } \ int \ _info(struct modinfo *modinfop) \ { \ return (mod_info(&modlinkage, modinfop)); \ } typedef enum md_haltcmd {MD_HALT_ALL, MD_HALT_CHECK, MD_HALT_DOIT, MD_HALT_CLOSE, MD_HALT_OPEN, MD_HALT_UNLOAD } md_haltcmd_t; /* * To support cpr (Energy Star) we need to know when the resync threads are * running to not allow suspention. */ typedef struct md_resync_thds_cnt { int md_raid_resync; /* count of active raid resync threads */ int md_mirror_resync; /* count of active mirror resync threads */ kmutex_t md_resync_mutex; /* protects both resync counts */ } md_resync_t; /* * flags used with call to individual strategy routines */ #define MD_STR_PASSEDON 0x0000ffff #define MD_STR_NOTTOP 0x00000001 #define MD_STR_MAPPED 0x00000002 /* set when buf_t is mapped in */ #define MD_STR_ABR 0x00000004 /* use ABR to handle any recovery */ #define MD_STR_WMUPDATE 0x00000008 /* set if updating watermarks for sp */ #define MD_IO_COUNTED 0x00000400 /* io has been counted */ #define MD_NOBLOCK 0x00000800 /* do not block io durring release */ #define MD_STR_WAR 0x00010000 /* this write is write after read */ #define MD_STR_WOW 0x00020000 /* handling a write-on-write */ #define MD_STR_DMR 0x00040000 /* Directed Read request */ #define MD_STR_DIRTY_RD 0x00080000 /* Read of a dirty block */ #define MD_STR_FLAG_ERR 0x00100000 /* Flag any write error on this i/o */ /* * Bits for return value of md_getdevnum */ #define MD_TRUST_DEVT 1 #define MD_NOTRUST_DEVT 0 /* Flag for drivers to pass to kmem_cache_alloc() */ #define MD_ALLOCFLAGS (KM_PUSHPAGE | KM_SLEEP) /* Named services */ #define MD_CHECK_OFFLINE "check_offline" #define MD_INC_ABR_COUNT "inc abr count" #define MD_DEC_ABR_COUNT "dec abr count" /* Externals from md.c */ extern int md_snarf_db_set(set_t setno, md_error_t *ep); extern void get_info(struct dk_cinfo *, minor_t); extern void get_minfo(struct dk_minfo *, minor_t); extern int mdstrategy(buf_t *); extern int md_create_minor_node(set_t, minor_t); /* External from md_subr.c */ extern int md_inc_iocount(set_t); extern void md_inc_iocount_noblock(set_t); extern void md_dec_iocount(set_t); extern int md_isblock_setio(set_t); extern int md_block_setio(set_t); extern void md_clearblock_setio(set_t); extern void md_unblock_setio(set_t); extern int md_tas_block_setio(set_t); extern void md_biodone(struct buf *); extern void md_bioreset(struct buf *); extern md_dev64_t md_xlate_targ_2_mini(md_dev64_t); extern md_dev64_t md_xlate_mini_2_targ(md_dev64_t); extern void md_xlate_free(int); extern major_t md_targ_name_to_major(char *); extern char *md_targ_major_to_name(major_t); extern void md_majortab_free(); extern void md_set_status(int); extern void md_clr_status(int); extern int md_get_status(void); extern void md_set_setstatus(set_t, int); extern void md_clr_setstatus(set_t, int); extern uint_t md_get_setstatus(set_t); extern void *md_unit_readerlock(mdi_unit_t *); extern void *md_unit_writerlock(mdi_unit_t *); extern void md_unit_readerexit(mdi_unit_t *); extern void md_unit_writerexit(mdi_unit_t *); extern void md_ioctl_releaselocks(int, int, mdi_unit_t *); extern void md_ioctl_reacquirelocks(int, mdi_unit_t *); extern int md_ioctl_lock_exit(int, int, mdi_unit_t *, int); extern int md_ioctl_lock_enter(void); extern void *md_ioctl_readerlock(IOLOCK *, mdi_unit_t *); extern void md_ioctl_readerexit(IOLOCK *); extern void *md_ioctl_writerlock(IOLOCK *, mdi_unit_t *); extern void md_ioctl_writerexit(IOLOCK *); extern void md_ioctl_io_exit(IOLOCK *); extern void *md_ioctl_io_lock(IOLOCK *, mdi_unit_t *); extern void md_ioctl_droplocks(IOLOCK *); extern void md_array_writer(IOLOCK *); extern void md_array_reader(IOLOCK *); extern void *md_ioctl_openclose_enter(IOLOCK *, mdi_unit_t *); extern void md_ioctl_openclose_exit(IOLOCK *); extern void md_ioctl_openclose_exit_lh(IOLOCK *); extern void *md_unit_openclose_enter(mdi_unit_t *); extern void md_unit_openclose_exit(mdi_unit_t *); extern void md_unit_openclose_exit_lh(mdi_unit_t *); extern int md_unit_isopen(mdi_unit_t *ui); extern int md_unit_incopen(minor_t mnum, int flag, int otyp); extern int md_unit_decopen(minor_t mnum, int otyp); extern void *md_io_readerlock(mdi_unit_t *); extern void *md_io_writerlock(mdi_unit_t *); extern void md_io_readerexit(mdi_unit_t *); extern void md_io_writerexit(mdi_unit_t *); extern intptr_t (*md_get_named_service())(); extern int init_requestq(md_requestq_entry_t *, void (*)(), caddr_t, int, int); extern void daemon_request(mdq_anchor_t *, void(*)(), daemon_queue_t *, callstyle_t); extern void md_daemon(int, mdq_anchor_t *); extern void mddb_commitrec_wrapper(mddb_recid_t); extern void mddb_commitrecs_wrapper(mddb_recid_t *); extern void mddb_deleterec_wrapper(mddb_recid_t); extern void md_holdset_enter(set_t setno); extern void md_holdset_exit(set_t setno); extern int md_holdset_testandenter(set_t setno); extern void md_haltsnarf_enter(set_t setno); extern void md_haltsnarf_exit(set_t setno); extern void md_haltsnarf_wait(set_t setno); extern int md_halt_set(set_t setno, enum md_haltcmd cmd); extern int md_halt(int global_lock_flag); extern int md_layered_open(minor_t, md_dev64_t *, int); extern void md_layered_close(md_dev64_t, int); extern char *md_get_device_name(md_dev64_t); extern int errdone(mdi_unit_t *, struct buf *, int); extern int md_checkbuf(mdi_unit_t *, md_unit_t *, buf_t *); extern int md_start_daemons(int init_queues); extern int md_loadsubmod(set_t, char *, int); extern int md_getmodindex(md_driver_t *, int, int); extern void md_call_strategy(buf_t *, int, void *); extern int md_call_ioctl(md_dev64_t, int, void *, int, IOLOCK *); extern void md_rem_link(set_t, int, krwlock_t *, md_link_t **); extern int md_dev_exists(md_dev64_t); extern md_parent_t md_get_parent(md_dev64_t); extern void md_set_parent(md_dev64_t, md_parent_t); extern void md_reset_parent(md_dev64_t); extern int md_hot_spare_ifc(hs_cmds_t, mddb_recid_t, u_longlong_t, int, mddb_recid_t *, mdkey_t *, md_dev64_t *, diskaddr_t *); extern int md_notify_interface(md_event_cmds_t cmd, md_tags_t type, set_t set, md_dev64_t dev, md_event_type_t event); extern void svm_gen_sysevent(char *se_class, char *se_subclass, uint32_t tag, set_t setno, md_dev64_t devid); extern void md_create_unit_incore(minor_t, md_ops_t *, int); extern void md_destroy_unit_incore(minor_t, md_ops_t *); extern void md_rem_names(sv_dev_t *, int); struct uio; extern int md_chk_uio(struct uio *); extern char *md_shortname(minor_t mnum); extern char *md_devname(set_t setno, md_dev64_t dev, char *buf, size_t size); extern void md_minphys(buf_t *); extern void md_kstat_init(minor_t mnum); extern void md_kstat_init_ui(minor_t mnum, mdi_unit_t *ui); extern void md_kstat_destroy(minor_t mnum); extern void md_kstat_destroy_ui(mdi_unit_t *ui); extern void md_kstat_waitq_enter(mdi_unit_t *ui); extern void md_kstat_waitq_to_runq(mdi_unit_t *ui); extern void md_kstat_waitq_exit(mdi_unit_t *ui); extern void md_kstat_runq_enter(mdi_unit_t *ui); extern void md_kstat_runq_exit(mdi_unit_t *ui); extern void md_kstat_done(mdi_unit_t *ui, buf_t *bp, int war); extern pid_t md_getpid(void); extern proc_t *md_getproc(void); extern int md_checkpid(pid_t pid, proc_t *proc); extern char *md_strdup(char *cp); extern void freestr(char *cp); extern int md_check_ioctl_against_efi(int, ushort_t); extern mddb_recid_t md_vtoc_to_efi_record(mddb_recid_t, set_t); extern int mdmn_ksend_message(set_t, md_mn_msgtype_t, uint_t, char *, int, md_mn_kresult_t *); extern void mdmn_ksend_show_error(int, md_mn_kresult_t *, const char *); extern int mdmn_send_capability_message(minor_t, volcap_t, IOLOCK *); extern void mdmn_clear_all_capabilities(minor_t); extern int md_init_probereq(struct md_probedev_impl *p, daemon_queue_t **hdrpp); extern boolean_t callb_md_mrs_cpr(void *, int); /* Externals from md_ioctl.c */ extern int md_mn_is_commd_present(void); extern void md_mn_clear_commd_present(void); extern int md_admin_ioctl(md_dev64_t, int, caddr_t, int, IOLOCK *lockp); extern void md_get_geom(md_unit_t *, struct dk_geom *); extern void md_get_vtoc(md_unit_t *, struct vtoc *); extern int md_set_vtoc(md_unit_t *, struct vtoc *); extern void md_get_cgapart(md_unit_t *, struct dk_map *); extern void md_get_efi(md_unit_t *, char *); extern int md_set_efi(md_unit_t *, char *); extern int md_dkiocgetefi(minor_t, void *, int); extern int md_dkiocsetefi(minor_t, void *, int); extern int md_dkiocpartition(minor_t, void *, int); /* Externals from md_names.c */ extern mdkey_t md_setdevname(set_t, side_t, mdkey_t, char *, minor_t, char *, set_t); extern int md_getdevname(set_t, side_t, mdkey_t, md_dev64_t, char *, size_t); extern int md_getkeyfromdev(set_t, side_t, md_dev64_t, mdkey_t *, int *); extern int md_devid_found(set_t, side_t, mdkey_t); extern int md_getnment(set_t, side_t, mdkey_t, md_dev64_t, char *, uint_t, major_t *, minor_t *, mdkey_t *); extern md_dev64_t md_getdevnum(set_t, side_t, mdkey_t, int); extern mdkey_t md_getnextkey(set_t, side_t, mdkey_t, uint_t *); extern int md_remdevname(set_t, side_t, mdkey_t); extern mdkey_t md_setshared_name(set_t, char *, int); extern char *md_getshared_name(set_t, mdkey_t); extern int md_remshared_name(set_t, mdkey_t); extern mdkey_t md_getshared_key(set_t, char *); extern int md_setshared_data(set_t, uint_t, caddr_t); extern caddr_t md_getshared_data(set_t, uint_t); extern int md_load_namespace(set_t, md_error_t *ep, int); extern void md_unload_namespace(set_t, int); extern int md_nm_did_chkspace(set_t); extern void md_bioinit(); extern buf_t *md_bioclone(buf_t *, off_t, size_t, dev_t, diskaddr_t, int (*)(buf_t *), buf_t *, int); extern int md_getdevid(set_t setno, side_t side, mdkey_t key, ddi_devid_t devid, ushort_t *did_size); extern int md_getdevidminor(set_t setno, side_t side, mdkey_t key, char *minorname, size_t minorname_len); extern int md_update_namespace(set_t setno, side_t side, mdkey_t key, caddr_t devname, caddr_t pathname, minor_t mnum); extern int md_update_locator_namespace(set_t setno, side_t side, caddr_t devname, caddr_t pathname, md_dev64_t devt); extern int md_update_namespace_did(set_t setno, side_t side, mdkey_t key, md_error_t *ep); extern int md_validate_devid(set_t setno, side_t side, int *maxsz); extern int md_get_invdid(set_t setno, side_t side, int cnt, int maxsz, void *didptr); extern md_dev64_t md_resolve_bydevid(minor_t, md_dev64_t, mdkey_t key); extern md_dev64_t md_expldev(md_dev64_t); extern dev32_t md_cmpldev(md_dev64_t); extern dev_t md_dev64_to_dev(md_dev64_t); extern md_dev64_t md_makedevice(major_t, minor_t); extern major_t md_getmajor(md_dev64_t); extern minor_t md_getminor(md_dev64_t); extern void md_timeval(md_timeval32_t *); extern int md_imp_snarf_set(set_t *, int); /* externals from md_mddb.c */ extern int mddb_reread_rr(set_t, mddb_recid_t); extern int mddb_setowner(mddb_recid_t id, md_mn_nodeid_t owner); extern int mddb_parse(mddb_parse_parm_t *mpp); extern int mddb_block(mddb_block_parm_t *mpp); extern int mddb_optrecfix(mddb_optrec_parm_t *mop); extern int mddb_check_write_ioctl(mddb_config_t *info); extern int mddb_setflags_ioctl(mddb_setflags_config_t *info); extern struct nm_next_hdr *get_first_record(set_t, int, int); extern void *lookup_entry(struct nm_next_hdr *, set_t, side_t, mdkey_t, md_dev64_t, int); extern void *lookup_shared_entry(struct nm_next_hdr *, mdkey_t key, char *, mddb_recid_t *, int); extern int remove_shared_entry(struct nm_next_hdr *, mdkey_t key, char *, int); extern void *alloc_entry(struct nm_next_hdr *, mddb_recid_t, size_t, int, mddb_recid_t *); extern void *getshared_name(set_t, mdkey_t, int); #endif /* _KERNEL */ #ifdef __cplusplus } #endif #endif /* _SYS_MDVAR_H */