1 // SPDX-License-Identifier: CDDL-1.0 2 /* 3 * CDDL HEADER START 4 * 5 * The contents of this file are subject to the terms of the 6 * Common Development and Distribution License, Version 1.0 only 7 * (the "License"). You may not use this file except in compliance 8 * with the License. 9 * 10 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 11 * or https://opensource.org/licenses/CDDL-1.0. 12 * See the License for the specific language governing permissions 13 * and limitations under the License. 14 * 15 * When distributing Covered Code, include this CDDL HEADER in each 16 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 17 * If applicable, add the following below this CDDL HEADER, with the 18 * fields enclosed by brackets "[]" replaced with your own identifying 19 * information: Portions Copyright [yyyy] [name of copyright owner] 20 * 21 * CDDL HEADER END 22 */ 23 /* 24 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 * 27 * Copyright (c) 2016, Intel Corporation. 28 */ 29 30 #ifndef _FMD_SERD_H 31 #define _FMD_SERD_H 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 #include <sys/list.h> 38 #include <sys/time.h> 39 40 typedef struct fmd_serd_elem { 41 list_node_t se_list; /* linked list forward/back pointers */ 42 hrtime_t se_hrt; /* upper bound on event hrtime */ 43 } fmd_serd_elem_t; 44 45 typedef struct fmd_serd_eng { 46 char *sg_name; /* string name for this engine */ 47 struct fmd_serd_eng *sg_next; /* next engine on hash chain */ 48 list_t sg_list; /* list of fmd_serd_elem_t's */ 49 uint_t sg_count; /* count of events in sg_list */ 50 uint_t sg_flags; /* engine flags (see below) */ 51 uint_t sg_n; /* engine N parameter (event count) */ 52 hrtime_t sg_t; /* engine T parameter (nanoseconds) */ 53 } fmd_serd_eng_t; 54 55 #define FMD_SERD_FIRED 0x1 /* error rate has exceeded threshold */ 56 #define FMD_SERD_DIRTY 0x2 /* engine needs to be checkpointed */ 57 58 typedef void fmd_serd_eng_f(fmd_serd_eng_t *, void *); 59 60 typedef struct fmd_serd_hash { 61 fmd_serd_eng_t **sh_hash; /* hash bucket array for buffers */ 62 uint_t sh_hashlen; /* length of hash bucket array */ 63 uint_t sh_count; /* count of engines in hash */ 64 } fmd_serd_hash_t; 65 66 extern void fmd_serd_hash_create(fmd_serd_hash_t *); 67 extern void fmd_serd_hash_destroy(fmd_serd_hash_t *); 68 extern void fmd_serd_hash_apply(fmd_serd_hash_t *, fmd_serd_eng_f *, void *); 69 70 extern fmd_serd_eng_t *fmd_serd_eng_insert(fmd_serd_hash_t *, 71 const char *, uint32_t, hrtime_t); 72 73 extern fmd_serd_eng_t *fmd_serd_eng_lookup(fmd_serd_hash_t *, const char *); 74 extern void fmd_serd_eng_delete(fmd_serd_hash_t *, const char *); 75 76 extern int fmd_serd_eng_record(fmd_serd_eng_t *, hrtime_t); 77 extern int fmd_serd_eng_fired(fmd_serd_eng_t *); 78 extern int fmd_serd_eng_empty(fmd_serd_eng_t *); 79 80 extern void fmd_serd_eng_reset(fmd_serd_eng_t *); 81 extern void fmd_serd_eng_gc(fmd_serd_eng_t *, void *); 82 83 #ifdef __cplusplus 84 } 85 #endif 86 87 #endif /* _FMD_SERD_H */ 88