usr/src/uts/sun4u/sys/ecc_kstat.h

   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 http://www.opensolaris.org/os/licensing.
  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 /*
  24  * Copyright (c) 2001 by Sun Microsystems, Inc.
  25  * All rights reserved.
  26  */
  27
  28 #ifndef _SYS_ECC_KSTAT_H
  29 #define _SYS_ECC_KSTAT_H
  30
  31 #pragma ident   "%Z%%M% %I%     %E% SMI"
  32
  33 #ifdef  __cplusplus
  34 extern "C" {
  35 #endif
  36
  37 #define KSTAT_CE_UNUM_NAMLEN 60
  38
  39 /*
  40  * Using these stats are not reset to zero during system operation.
  41  * To determine the number of errors between times "A" and "B" a program
  42  * would have to snapshot the kstats and subtract the counts at time "A"
  43  * from the counts at time "B".
  44  */
  45
  46 /*
  47  * Legacy raw kstat: unix:0:ecc-mm-info
  48  */
  49 struct kstat_ecc_mm_info_1 {
  50         struct kstat_ecc_mm {
  51                 char name[KSTAT_CE_UNUM_NAMLEN];
  52                 uint64_t intermittent_total;
  53                 uint64_t persistent_total;
  54                 uint64_t sticky_total;
  55         } ecc_mm[1];    /* variable-length array */
  56 };
  57
  58 /*
  59  * Named kstat: mm:(instance):ecc-info
  60  */
  61 struct kstat_ecc_mm_info_2 {
  62         struct kstat_named name;
  63         struct kstat_named intermittent_total;
  64         struct kstat_named persistent_total;
  65         struct kstat_named sticky_total;
  66 };
  67
  68 #define kstat_ecc_mm_info       kstat_ecc_mm_info_2
  69 #define KSTAT_CE_INFO_VER_1     1
  70 #define KSTAT_CE_INFO_VER_2     2
  71 #define KSTAT_CE_INFO_VER       KSTAT_CE_INFO_VER_2
  72
  73 /*
  74  * Clients of this kstat will have to check the version and maintain
  75  * compatibility code to handle the previous versions.
  76  *
  77  * named kstat: unix:0:ecc-info:version
  78  *      - the version of the kstats implemented by the running kernel
  79  *
  80  * named kstat: unix:0:ecc-info:count
  81  *      - the current count of valid mm:ecc-info kstats
  82  *
  83  * named kstat: unix:0:ecc-info:maxcount
  84  *      - the maximum number of mm:ecc-info kstats
  85  */
  86 struct ecc_error_info {
  87         struct kstat_named version;
  88         struct kstat_named maxcount;
  89         struct kstat_named count;
  90 };
  91
  92 #ifdef  __cplusplus
  93 }
  94 #endif
  95
  96 #endif  /* _SYS_ECC_KSTAT_H */