mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-12-26 19:19:32 +03:00
12fa0466df
Authored by: Dave Eddy <dave@daveeddy.com> Reviewed by: Patrick Mooney <patrick.mooney@joyent.com> Reviewed by: Joshua M. Clulow <jmc@joyent.com> Reviewed by: Josh Wilsdon <jwilsdon@joyent.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Alan Somers <asomers@gmail.com> Reviewed by: Andrew Stormont <andyjstormont@gmail.com> Approved by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: George Melikov <mail@gmelikov.ru> Ported-by: Giuseppe Di Natale <dinatale2@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6939 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ce1577b Closes #6328
119 lines
3.5 KiB
C
119 lines
3.5 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License (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 (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
|
|
*/
|
|
|
|
#ifndef _SYS_FM_UTIL_H
|
|
#define _SYS_FM_UTIL_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <sys/nvpair.h>
|
|
|
|
/*
|
|
* Shared user/kernel definitions for class length, error channel name,
|
|
* and kernel event publisher string.
|
|
*/
|
|
#define FM_MAX_CLASS 100
|
|
#define FM_ERROR_CHAN "com.sun:fm:error"
|
|
#define FM_PUB "fm"
|
|
|
|
/*
|
|
* ereport dump device transport support
|
|
*
|
|
* Ereports are written out to the dump device at a proscribed offset from the
|
|
* end, similar to in-transit log messages. The ereports are represented as a
|
|
* erpt_dump_t header followed by ed_size bytes of packed native nvlist data.
|
|
*
|
|
* NOTE: All of these constants and the header must be defined so they have the
|
|
* same representation for *both* 32-bit and 64-bit producers and consumers.
|
|
*/
|
|
#define ERPT_MAGIC 0xf00d4eddU
|
|
#define ERPT_MAX_ERRS 16
|
|
#define ERPT_DATA_SZ (6 * 1024)
|
|
#define ERPT_EVCH_MAX 256
|
|
#define ERPT_HIWAT 64
|
|
|
|
typedef struct erpt_dump {
|
|
uint32_t ed_magic; /* ERPT_MAGIC or zero to indicate end */
|
|
uint32_t ed_chksum; /* checksum32() of packed nvlist data */
|
|
uint32_t ed_size; /* ereport (nvl) fixed buf size */
|
|
uint32_t ed_pad; /* reserved for future use */
|
|
hrtime_t ed_hrt_nsec; /* hrtime of this ereport */
|
|
hrtime_t ed_hrt_base; /* hrtime sample corresponding to ed_tod_base */
|
|
struct {
|
|
uint64_t sec; /* seconds since gettimeofday() Epoch */
|
|
uint64_t nsec; /* nanoseconds past ed_tod_base.sec */
|
|
} ed_tod_base;
|
|
} erpt_dump_t;
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#define ZEVENT_SHUTDOWN 0x1
|
|
|
|
typedef void zevent_cb_t(nvlist_t *, nvlist_t *);
|
|
|
|
typedef struct zevent_s {
|
|
nvlist_t *ev_nvl; /* protected by the zevent_lock */
|
|
nvlist_t *ev_detector; /* " */
|
|
list_t ev_ze_list; /* " */
|
|
list_node_t ev_node; /* " */
|
|
zevent_cb_t *ev_cb; /* " */
|
|
uint64_t ev_eid;
|
|
} zevent_t;
|
|
|
|
typedef struct zfs_zevent {
|
|
zevent_t *ze_zevent; /* protected by the zevent_lock */
|
|
list_node_t ze_node; /* " */
|
|
uint64_t ze_dropped; /* " */
|
|
} zfs_zevent_t;
|
|
|
|
extern void fm_init(void);
|
|
extern void fm_fini(void);
|
|
extern void fm_nvprint(nvlist_t *);
|
|
extern void zfs_zevent_post_cb(nvlist_t *nvl, nvlist_t *detector);
|
|
extern int zfs_zevent_post(nvlist_t *, nvlist_t *, zevent_cb_t *);
|
|
extern void zfs_zevent_drain_all(int *);
|
|
extern int zfs_zevent_fd_hold(int, minor_t *, zfs_zevent_t **);
|
|
extern void zfs_zevent_fd_rele(int);
|
|
extern int zfs_zevent_next(zfs_zevent_t *, nvlist_t **, uint64_t *, uint64_t *);
|
|
extern int zfs_zevent_wait(zfs_zevent_t *);
|
|
extern int zfs_zevent_seek(zfs_zevent_t *, uint64_t);
|
|
extern void zfs_zevent_init(zfs_zevent_t **);
|
|
extern void zfs_zevent_destroy(zfs_zevent_t *);
|
|
|
|
#else
|
|
|
|
static inline void fm_init(void) { }
|
|
static inline void fm_fini(void) { }
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _SYS_FM_UTIL_H */
|