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, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or https://opensource.org/licenses/CDDL-1.0.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 *
26 * Copyright (c) 2016, Intel Corporation.
27 */
28
29#ifndef	_FMD_SERD_H
30#define	_FMD_SERD_H
31
32#ifdef	__cplusplus
33extern "C" {
34#endif
35
36#include <sys/list.h>
37#include <sys/time.h>
38
39typedef struct fmd_serd_elem {
40	list_node_t	se_list;	/* linked list forward/back pointers */
41	hrtime_t	se_hrt;		/* upper bound on event hrtime */
42} fmd_serd_elem_t;
43
44typedef struct fmd_serd_eng {
45	char		*sg_name;	/* string name for this engine */
46	struct fmd_serd_eng *sg_next;	/* next engine on hash chain */
47	list_t		sg_list;	/* list of fmd_serd_elem_t's */
48	uint_t		sg_count;	/* count of events in sg_list */
49	uint_t		sg_flags;	/* engine flags (see below) */
50	uint_t		sg_n;		/* engine N parameter (event count) */
51	hrtime_t	sg_t;		/* engine T parameter (nanoseconds) */
52} fmd_serd_eng_t;
53
54#define	FMD_SERD_FIRED	0x1		/* error rate has exceeded threshold */
55#define	FMD_SERD_DIRTY	0x2		/* engine needs to be checkpointed */
56
57typedef void fmd_serd_eng_f(fmd_serd_eng_t *, void *);
58
59typedef struct fmd_serd_hash {
60	fmd_serd_eng_t	**sh_hash;	/* hash bucket array for buffers */
61	uint_t		sh_hashlen;	/* length of hash bucket array */
62	uint_t		sh_count;	/* count of engines in hash */
63} fmd_serd_hash_t;
64
65extern void fmd_serd_hash_create(fmd_serd_hash_t *);
66extern void fmd_serd_hash_destroy(fmd_serd_hash_t *);
67extern void fmd_serd_hash_apply(fmd_serd_hash_t *, fmd_serd_eng_f *, void *);
68
69extern fmd_serd_eng_t *fmd_serd_eng_insert(fmd_serd_hash_t *,
70    const char *, uint32_t, hrtime_t);
71
72extern fmd_serd_eng_t *fmd_serd_eng_lookup(fmd_serd_hash_t *, const char *);
73extern void fmd_serd_eng_delete(fmd_serd_hash_t *, const char *);
74
75extern int fmd_serd_eng_record(fmd_serd_eng_t *, hrtime_t);
76extern int fmd_serd_eng_fired(fmd_serd_eng_t *);
77extern int fmd_serd_eng_empty(fmd_serd_eng_t *);
78
79extern void fmd_serd_eng_reset(fmd_serd_eng_t *);
80extern void fmd_serd_eng_gc(fmd_serd_eng_t *, void *);
81
82#ifdef	__cplusplus
83}
84#endif
85
86#endif	/* _FMD_SERD_H */
87