usr/src/cmd/fm/modules/sun4u/USII-io-diagnosis/iod_main.c

   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  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include <stdarg.h>
  30 #include <sys/param.h>
  31 #include <errno.h>
  32 #include <string.h>
  33 #include <unistd.h>
  34 #include <strings.h>
  35 #include <kstat.h>
  36 #include <fm/fmd_api.h>
  37 #include <sys/fm/protocol.h>
  38 #include <sys/async.h>
  39
  40 #define IOD_STAT_BUMP(name)             iod.iod_stats->name.fmds_value.ui64++
  41
  42 /*
  43  * USII-io-diagnosis:
  44  *
  45  * This diagnosis engine consumes the Psycho based IO UEs and CEs
  46  * which are generated due to DMA Reads or Writes.
  47  *
  48  * When a UE is received it will generate the appropriate fault
  49  * (defect.ultraSPARC-II.memory.nodiag). This is because we do not plan
  50  * to currently add greater diagnosis capabilities for USII systems.
  51  *
  52  * When a CE is received we allow the legacy in kernel SERD do it's job
  53  * and we just bump a counter here. The legacy SERD algorithm will print
  54  * out a message and retire pages when the SERD threshold is reached.
  55  *
  56  */
  57 static void iod_recv(fmd_hdl_t *, fmd_event_t *, nvlist_t *, const char *);
  58
  59 typedef struct iod_stat {
  60         fmd_stat_t ue;  /* # of UEs received */
  61         fmd_stat_t ce;  /* # of CEs received */
  62 } iod_stat_t;
  63
  64 typedef struct iod {
  65         iod_stat_t *iod_stats;  /* Module statistics */
  66 } iod_t;
  67
  68 static const fmd_hdl_ops_t fmd_ops = {
  69         iod_recv,       /* fmdo_recv */
  70         NULL,           /* fmdo_timeout */
  71         NULL,           /* fmdo_close */
  72         NULL,           /* fmdo_stats */
  73         NULL            /* fmdo_gc */
  74 };
  75
  76 static const fmd_hdl_info_t fmd_info = {
  77         "UltraSPARC-II I/O Diagnosis", IOD_VERSION, &fmd_ops, NULL
  78 };
  79
  80 static const iod_stat_t iod_stat = {
  81         { "ue", FMD_TYPE_UINT64, "number of received IO UEs" },
  82         { "ce", FMD_TYPE_UINT64, "number of received IO CEs" }
  83 };
  84
  85 iod_t iod;
  86
  87 /*ARGSUSED*/
  88 static void
  89 iod_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl, const char *class)
  90 {
  91         fmd_case_t *cp;
  92         nvlist_t *fault;
  93         char flt[] = "defect.ultraSPARC-II.memory.nodiag";
  94
  95         if (fmd_nvl_class_match(hdl, nvl, "*ue")) {
  96                 IOD_STAT_BUMP(ue);
  97                 cp = fmd_case_open(hdl, NULL);
  98                 fault = fmd_nvl_create_fault(hdl, flt, 100, NULL, NULL, NULL);
  99                 fmd_case_add_ereport(hdl, cp, ep);
 100                 fmd_case_add_suspect(hdl, cp, fault);
 101                 fmd_case_solve(hdl, cp);
 102         } else if (fmd_nvl_class_match(hdl, nvl, "*ce")) {
 103                 IOD_STAT_BUMP(ce);
 104         }
 105 }
 106
 107 int
 108 iod_cpu_check_support(void)
 109 {
 110         kstat_named_t *kn;
 111         kstat_ctl_t *kc;
 112         kstat_t *ksp;
 113         int i;
 114
 115         if ((kc = kstat_open()) == NULL)
 116                 return (0);
 117
 118         for (ksp = kc->kc_chain; ksp != NULL; ksp = ksp->ks_next) {
 119                 if (strcmp(ksp->ks_module, "cpu_info") != 0)
 120                         continue;
 121
 122                 if (kstat_read(kc, ksp, NULL) == -1) {
 123                         (void) kstat_close(kc);
 124                         return (0);
 125                 }
 126
 127                 for (kn = ksp->ks_data, i = 0; i < ksp->ks_ndata; i++, kn++) {
 128                         if (strcmp(kn->name, "implementation") != 0)
 129                                 continue;
 130
 131                         if (strncmp(KSTAT_NAMED_STR_PTR(kn), "UltraSPARC-II",
 132                             sizeof ("UltraSPARC-II") - 1) == 0 &&
 133                             strncmp(KSTAT_NAMED_STR_PTR(kn), "UltraSPARC-III",
 134                             sizeof ("UltraSPARC-III") - 1) != 0) {
 135                                 (void) kstat_close(kc);
 136                                 return (1);
 137                         }
 138                 }
 139         }
 140
 141         (void) kstat_close(kc);
 142         return (0);
 143 }
 144
 145 void
 146 _fmd_init(fmd_hdl_t *hdl)
 147 {
 148         if (fmd_hdl_register(hdl, FMD_API_VERSION, &fmd_info) != 0)
 149                 return; /* error in configuration file or fmd_info */
 150
 151         if (!iod_cpu_check_support()) {
 152                 fmd_hdl_debug(hdl, "no supported CPUs found");
 153                 fmd_hdl_unregister(hdl);
 154                 return;
 155         }
 156
 157         fmd_hdl_subscribe(hdl, "ereport.io.psy.ecc.drue");
 158         fmd_hdl_subscribe(hdl, "ereport.io.psy.ecc.s-drue");
 159         fmd_hdl_subscribe(hdl, "ereport.io.psy.ecc.dwue");
 160         fmd_hdl_subscribe(hdl, "ereport.io.psy.ecc.s-dwue");
 161         fmd_hdl_subscribe(hdl, "ereport.io.psy.ecc.drce");
 162         fmd_hdl_subscribe(hdl, "ereport.io.psy.ecc.s-drce");
 163         fmd_hdl_subscribe(hdl, "ereport.io.psy.ecc.dwce");
 164         fmd_hdl_subscribe(hdl, "ereport.io.psy.ecc.s-dwce");
 165
 166         bzero(&iod, sizeof (iod_t));
 167
 168         iod.iod_stats = (iod_stat_t *)fmd_stat_create(hdl, FMD_STAT_NOALLOC,
 169             sizeof (iod_stat) / sizeof (fmd_stat_t), (fmd_stat_t *)&iod_stat);
 170 }