+++ /dev/null
-/*
- * 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 <linux/module.h>
-#include <linux/proc_compat.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/kmem.h>
-#include <sys/mutex.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_UNSUPPORTED \
- (KSTAT_FLAG_VAR_SIZE | KSTAT_FLAG_WRITABLE | \
- KSTAT_FLAG_PERSISTENT | KSTAT_FLAG_DORMANT)
-
-
-#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 */
- struct proc_dir_entry *ks_proc; /* proc linkage */
- 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 */
-};
-
-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 */
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