1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or https://opensource.org/licenses/CDDL-1.0.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright (c) 2018 by Delphix. All rights reserved.
24 * Copyright (c) 2018 Datto Inc.
25 */
26
27#ifndef _SYS_DATASET_KSTATS_H
28#define	_SYS_DATASET_KSTATS_H
29
30#include <sys/wmsum.h>
31#include <sys/dmu.h>
32#include <sys/kstat.h>
33#include <sys/zil.h>
34
35typedef struct dataset_sum_stats_t {
36	wmsum_t dss_writes;
37	wmsum_t dss_nwritten;
38	wmsum_t dss_reads;
39	wmsum_t dss_nread;
40	wmsum_t dss_nunlinks;
41	wmsum_t dss_nunlinked;
42} dataset_sum_stats_t;
43
44typedef struct dataset_kstat_values {
45	kstat_named_t dkv_ds_name;
46	kstat_named_t dkv_writes;
47	kstat_named_t dkv_nwritten;
48	kstat_named_t dkv_reads;
49	kstat_named_t dkv_nread;
50	/*
51	 * nunlinks is initialized to the unlinked set size on mount and
52	 * is incremented whenever a new entry is added to the unlinked set
53	 */
54	kstat_named_t dkv_nunlinks;
55	/*
56	 * nunlinked is initialized to zero on mount and is incremented when an
57	 * entry is removed from the unlinked set
58	 */
59	kstat_named_t dkv_nunlinked;
60	/*
61	 * Per dataset zil kstats
62	 */
63	zil_kstat_values_t dkv_zil_stats;
64} dataset_kstat_values_t;
65
66typedef struct dataset_kstats {
67	dataset_sum_stats_t dk_sums;
68	zil_sums_t dk_zil_sums;
69	kstat_t *dk_kstats;
70} dataset_kstats_t;
71
72int dataset_kstats_create(dataset_kstats_t *, objset_t *);
73void dataset_kstats_destroy(dataset_kstats_t *);
74void dataset_kstats_rename(dataset_kstats_t *dk, const char *);
75
76void dataset_kstats_update_write_kstats(dataset_kstats_t *, int64_t);
77void dataset_kstats_update_read_kstats(dataset_kstats_t *, int64_t);
78
79void dataset_kstats_update_nunlinks_kstat(dataset_kstats_t *, int64_t);
80void dataset_kstats_update_nunlinked_kstat(dataset_kstats_t *, int64_t);
81
82#endif /* _SYS_DATASET_KSTATS_H */
83