mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-11-18 10:21:01 +03:00
e64cc4954c
This is a step toward being able to vendor the OpenZFS code in FreeBSD. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Matt Macy <mmacy@FreeBSD.org> Closes #10625
208 lines
7.0 KiB
C
208 lines
7.0 KiB
C
/*
|
|
* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
|
|
* Copyright (C) 2007 The Regents of the University of California.
|
|
* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
|
|
* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
|
|
* UCRL-CODE-235197
|
|
*
|
|
* This file is part of the SPL, Solaris Porting Layer.
|
|
* For details, see <http://zfsonlinux.org/>.
|
|
*
|
|
* The SPL is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
* The SPL is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with the SPL. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef _SPL_KSTAT_H
|
|
#define _SPL_KSTAT_H
|
|
#include <sys/types.h>
|
|
#include <sys/sysctl.h>
|
|
struct list_head {};
|
|
#include <sys/mutex.h>
|
|
#include <sys/proc.h>
|
|
|
|
#define KSTAT_STRLEN 255
|
|
#define KSTAT_RAW_MAX (128*1024)
|
|
|
|
/*
|
|
* For reference valid classes are:
|
|
* disk, tape, net, controller, vm, kvm, hat, streams, kstat, misc
|
|
*/
|
|
|
|
#define KSTAT_TYPE_RAW 0 /* can be anything; ks_ndata >= 1 */
|
|
#define KSTAT_TYPE_NAMED 1 /* name/value pair; ks_ndata >= 1 */
|
|
#define KSTAT_TYPE_INTR 2 /* interrupt stats; ks_ndata == 1 */
|
|
#define KSTAT_TYPE_IO 3 /* I/O stats; ks_ndata == 1 */
|
|
#define KSTAT_TYPE_TIMER 4 /* event timer; ks_ndata >= 1 */
|
|
#define KSTAT_NUM_TYPES 5
|
|
|
|
#define KSTAT_DATA_CHAR 0
|
|
#define KSTAT_DATA_INT32 1
|
|
#define KSTAT_DATA_UINT32 2
|
|
#define KSTAT_DATA_INT64 3
|
|
#define KSTAT_DATA_UINT64 4
|
|
#define KSTAT_DATA_LONG 5
|
|
#define KSTAT_DATA_ULONG 6
|
|
#define KSTAT_DATA_STRING 7
|
|
#define KSTAT_NUM_DATAS 8
|
|
|
|
#define KSTAT_INTR_HARD 0
|
|
#define KSTAT_INTR_SOFT 1
|
|
#define KSTAT_INTR_WATCHDOG 2
|
|
#define KSTAT_INTR_SPURIOUS 3
|
|
#define KSTAT_INTR_MULTSVC 4
|
|
#define KSTAT_NUM_INTRS 5
|
|
|
|
#define KSTAT_FLAG_VIRTUAL 0x01
|
|
#define KSTAT_FLAG_VAR_SIZE 0x02
|
|
#define KSTAT_FLAG_WRITABLE 0x04
|
|
#define KSTAT_FLAG_PERSISTENT 0x08
|
|
#define KSTAT_FLAG_DORMANT 0x10
|
|
#define KSTAT_FLAG_INVALID 0x20
|
|
#define KSTAT_FLAG_LONGSTRINGS 0x40
|
|
#define KSTAT_FLAG_NO_HEADERS 0x80
|
|
|
|
#define KS_MAGIC 0x9d9d9d9d
|
|
|
|
/* Dynamic updates */
|
|
#define KSTAT_READ 0
|
|
#define KSTAT_WRITE 1
|
|
|
|
struct kstat_s;
|
|
typedef struct kstat_s kstat_t;
|
|
|
|
typedef int kid_t; /* unique kstat id */
|
|
typedef int kstat_update_t(struct kstat_s *, int); /* dynamic update cb */
|
|
|
|
typedef struct kstat_module {
|
|
char ksm_name[KSTAT_STRLEN+1]; /* module name */
|
|
struct list_head ksm_module_list; /* module linkage */
|
|
struct list_head ksm_kstat_list; /* list of kstat entries */
|
|
struct proc_dir_entry *ksm_proc; /* proc entry */
|
|
} kstat_module_t;
|
|
|
|
typedef struct kstat_raw_ops {
|
|
int (*headers)(char *buf, size_t size);
|
|
int (*data)(char *buf, size_t size, void *data);
|
|
void *(*addr)(kstat_t *ksp, loff_t index);
|
|
} kstat_raw_ops_t;
|
|
|
|
struct kstat_s {
|
|
int ks_magic; /* magic value */
|
|
kid_t ks_kid; /* unique kstat ID */
|
|
hrtime_t ks_crtime; /* creation time */
|
|
hrtime_t ks_snaptime; /* last access time */
|
|
char ks_module[KSTAT_STRLEN+1]; /* provider module name */
|
|
int ks_instance; /* provider module instance */
|
|
char ks_name[KSTAT_STRLEN+1]; /* kstat name */
|
|
char ks_class[KSTAT_STRLEN+1]; /* kstat class */
|
|
uchar_t ks_type; /* kstat data type */
|
|
uchar_t ks_flags; /* kstat flags */
|
|
void *ks_data; /* kstat type-specific data */
|
|
uint_t ks_ndata; /* # of data records */
|
|
size_t ks_data_size; /* size of kstat data section */
|
|
kstat_update_t *ks_update; /* dynamic updates */
|
|
void *ks_private; /* private data */
|
|
kmutex_t ks_private_lock; /* kstat private data lock */
|
|
kmutex_t *ks_lock; /* kstat data lock */
|
|
struct list_head ks_list; /* kstat linkage */
|
|
kstat_module_t *ks_owner; /* kstat module linkage */
|
|
kstat_raw_ops_t ks_raw_ops; /* ops table for raw type */
|
|
char *ks_raw_buf; /* buf used for raw ops */
|
|
size_t ks_raw_bufsize; /* size of raw ops buffer */
|
|
struct sysctl_ctx_list ks_sysctl_ctx;
|
|
struct sysctl_oid *ks_sysctl_root;
|
|
|
|
};
|
|
|
|
typedef struct kstat_named_s {
|
|
char name[KSTAT_STRLEN]; /* name of counter */
|
|
uchar_t data_type; /* data type */
|
|
union {
|
|
char c[16]; /* 128-bit int */
|
|
int32_t i32; /* 32-bit signed int */
|
|
uint32_t ui32; /* 32-bit unsigned int */
|
|
int64_t i64; /* 64-bit signed int */
|
|
uint64_t ui64; /* 64-bit unsigned int */
|
|
long l; /* native signed long */
|
|
ulong_t ul; /* native unsigned long */
|
|
struct {
|
|
union {
|
|
char *ptr; /* NULL-term string */
|
|
char __pad[8]; /* 64-bit padding */
|
|
} addr;
|
|
uint32_t len; /* # bytes for strlen + '\0' */
|
|
} string;
|
|
} value;
|
|
} kstat_named_t;
|
|
|
|
#define KSTAT_NAMED_STR_PTR(knptr) ((knptr)->value.string.addr.ptr)
|
|
#define KSTAT_NAMED_STR_BUFLEN(knptr) ((knptr)->value.string.len)
|
|
|
|
typedef struct kstat_intr {
|
|
uint_t intrs[KSTAT_NUM_INTRS];
|
|
} kstat_intr_t;
|
|
|
|
typedef struct kstat_io {
|
|
u_longlong_t nread; /* number of bytes read */
|
|
u_longlong_t nwritten; /* number of bytes written */
|
|
uint_t reads; /* number of read operations */
|
|
uint_t writes; /* number of write operations */
|
|
hrtime_t wtime; /* cumulative wait (pre-service) time */
|
|
hrtime_t wlentime; /* cumulative wait len*time product */
|
|
hrtime_t wlastupdate; /* last time wait queue changed */
|
|
hrtime_t rtime; /* cumulative run (service) time */
|
|
hrtime_t rlentime; /* cumulative run length*time product */
|
|
hrtime_t rlastupdate; /* last time run queue changed */
|
|
uint_t wcnt; /* count of elements in wait state */
|
|
uint_t rcnt; /* count of elements in run state */
|
|
} kstat_io_t;
|
|
|
|
typedef struct kstat_timer {
|
|
char name[KSTAT_STRLEN+1]; /* event name */
|
|
u_longlong_t num_events; /* number of events */
|
|
hrtime_t elapsed_time; /* cumulative elapsed time */
|
|
hrtime_t min_time; /* shortest event duration */
|
|
hrtime_t max_time; /* longest event duration */
|
|
hrtime_t start_time; /* previous event start time */
|
|
hrtime_t stop_time; /* previous event stop time */
|
|
} kstat_timer_t;
|
|
|
|
int spl_kstat_init(void);
|
|
void spl_kstat_fini(void);
|
|
|
|
extern void __kstat_set_raw_ops(kstat_t *ksp,
|
|
int (*headers)(char *buf, size_t size),
|
|
int (*data)(char *buf, size_t size, void *data),
|
|
void* (*addr)(kstat_t *ksp, loff_t index));
|
|
|
|
extern kstat_t *__kstat_create(const char *ks_module, int ks_instance,
|
|
const char *ks_name, const char *ks_class, uchar_t ks_type,
|
|
uint_t ks_ndata, uchar_t ks_flags);
|
|
|
|
extern void __kstat_install(kstat_t *ksp);
|
|
extern void __kstat_delete(kstat_t *ksp);
|
|
extern void kstat_waitq_enter(kstat_io_t *);
|
|
extern void kstat_waitq_exit(kstat_io_t *);
|
|
extern void kstat_runq_enter(kstat_io_t *);
|
|
extern void kstat_runq_exit(kstat_io_t *);
|
|
|
|
#define kstat_set_raw_ops(k, h, d, a) \
|
|
__kstat_set_raw_ops(k, h, d, a)
|
|
#define kstat_create(m, i, n, c, t, s, f) \
|
|
__kstat_create(m, i, n, c, t, s, f)
|
|
|
|
#define kstat_install(k) __kstat_install(k)
|
|
#define kstat_delete(k) __kstat_delete(k)
|
|
|
|
#endif /* _SPL_KSTAT_H */
|