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 http://www.opensolaris.org/os/licensing. 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 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SDBC_STATS_H 27 #define _SDBC_STATS_H 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 /* 34 * Internal flags to denote data collection status 35 */ 36 #define GOT_SET_KSTAT 0x01 37 #define GOT_IO_KSTAT 0x02 38 #define GOT_COMPLETE_SDBC (GOT_SET_KSTAT | GOT_IO_KSTAT) 39 40 #define SDBC_COMPLETE(x) (((x) & (GOT_COMPLETE_SDBC)) != \ 41 (GOT_COMPLETE_SDBC)) 42 43 #define SDBC_KBYTES 0x01 44 #define SDBC_INTAVG 0x02 45 46 #define KILOBYTE 1024 47 48 typedef struct sdbcstat_s 49 { 50 kstat_t *pre_set; 51 kstat_t *pre_io; 52 kstat_t *cur_set; 53 kstat_t *cur_io; 54 int collected; 55 struct sdbcstat_s *next; 56 } sdbcstat_t; 57 58 typedef struct sdbcvals_t 59 { 60 uint32_t cache_read; 61 uint32_t cache_write; 62 uint32_t total_cache; 63 64 float cache_hit; 65 float read_hit; 66 float write_hit; 67 68 uint32_t disk_read; 69 uint32_t disk_write; 70 uint32_t total_disk; 71 72 uint32_t destaged; 73 uint32_t write_cancellations; 74 75 uint32_t total_reads; 76 uint32_t total_writes; 77 } sdbcvals_t; 78 79 extern kstat_t *sdbc_global; 80 81 /* Prototypes */ 82 int sdbc_discover(kstat_ctl_t *); 83 int sdbc_update(kstat_ctl_t *); 84 int sdbc_report(); 85 sdbcstat_t *sdbc_getstat(char *); 86 int sdbc_getvalues(sdbcstat_t *, sdbcvals_t *, int); 87 88 #ifdef __cplusplus 89 } 90 #endif 91 92 #endif /* _SDBC_STATS_H */ 93