usr/src/cmd/fm/modules/sun4v/generic-mem/gmem_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 (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 (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  23  */
  24
  25 #include <gmem_state.h>
  26 #include <gmem_mem.h>
  27 #include <gmem_page.h>
  28 #include <gmem_dimm.h>
  29 #include <gmem.h>
  30
  31 #include <errno.h>
  32 #include <string.h>
  33 #include <unistd.h>
  34 #include <strings.h>
  35 #include <fm/fmd_api.h>
  36 #include <fm/libtopo.h>
  37 #include <sys/fm/protocol.h>
  38 #include <sys/async.h>
  39
  40 gmem_t gmem;
  41
  42 typedef struct gmem_subscriber {
  43         const char *subr_class;
  44         gmem_evdisp_t (*subr_func)(fmd_hdl_t *, fmd_event_t *, nvlist_t *,
  45             const char *);
  46         gmem_evdisp_stat_t subr_stat;
  47 } gmem_subscriber_t;
  48
  49 static gmem_subscriber_t gmem_subscribers[] = {
  50         { "ereport.cpu.generic-sparc.mem-is",   gmem_ce },
  51         { "ereport.cpu.generic-sparc.mem-unk",  gmem_ce },
  52         { "ereport.cpu.generic-sparc.mem-cs",   gmem_ce },
  53         { "ereport.cpu.generic-sparc.mem-ss",   gmem_ce },
  54         { NULL, NULL }
  55 };
  56
  57 static void
  58 gmem_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl, const char *class)
  59 {
  60         gmem_subscriber_t *sp;
  61         int disp;
  62
  63         fmd_hdl_debug(hdl, "gmem_recv: begin: %s\n", strrchr(class, '.') + 1);
  64
  65         for (sp = gmem_subscribers; sp->subr_class != NULL; sp++) {
  66                 if (fmd_nvl_class_match(hdl, nvl, sp->subr_class)) {
  67                         disp = sp->subr_func(hdl, ep, nvl, class);
  68                         ((fmd_stat_t *)&sp->subr_stat)[disp].fmds_value.ui64++;
  69                         fmd_hdl_debug(hdl, "gmem_recv: done: %s (disp %d)\n",
  70                             strrchr(class, '.') + 1, disp);
  71                         return;
  72                 }
  73         }
  74
  75         fmd_hdl_debug(hdl, "gmem_recv: dropping %s - unable to handle\n",
  76             class);
  77 }
  78
  79 static void
  80 gmem_close(fmd_hdl_t *hdl, fmd_case_t *cp)
  81 {
  82         gmem_case_closer_t *cl = fmd_case_getspecific(hdl, cp);
  83         const char *uuid = fmd_case_uuid(hdl, cp);
  84
  85         /*
  86          * Our active cases all have closers registered in case-specific data.
  87          * Cases in the process of closing (for which we've freed all associated
  88          * data, but which haven't had an fmd-initiated fmdo_close callback)
  89          * have had their case-specific data nulled out.
  90          */
  91         fmd_hdl_debug(hdl, "close case %s%s\n", uuid,
  92             (cl == NULL ? " (no cl)" : ""));
  93
  94         if (cl != NULL)
  95                 cl->cl_func(hdl, cl->cl_arg);
  96 }
  97
  98 static void
  99 gmem_gc(fmd_hdl_t *hdl)
 100 {
 101         gmem_mem_gc(hdl);
 102 }
 103
 104 static gmem_stat_t gm_stats = {
 105         { "bad_mem_resource", FMD_TYPE_UINT64,
 106             "memory resource missing or malformed" },
 107         { "bad_close", FMD_TYPE_UINT64, "case close for nonexistent case" },
 108         { "old_erpt", FMD_TYPE_UINT64, "ereport out of date wrt hardware" },
 109         { "dimm_creat", FMD_TYPE_UINT64, "created new mem module structure" },
 110         { "page_creat", FMD_TYPE_UINT64, "created new page structure" },
 111         { "ce_unknown", FMD_TYPE_UINT64, "unknown CEs" },
 112         { "ce_interm", FMD_TYPE_UINT64, "intermittent CEs" },
 113         { "ce_clearable_persis", FMD_TYPE_UINT64, "clearable persistent CEs" },
 114         { "ce_sticky", FMD_TYPE_UINT64, "sticky CEs" },
 115         { "dimm_migrat", FMD_TYPE_UINT64, "DIMMs migrated to new version" }
 116 };
 117
 118 static const fmd_prop_t fmd_props[] = {
 119         { "ce_n", FMD_TYPE_UINT32, "3" },
 120         { "ce_t", FMD_TYPE_TIME, "72h" },
 121         { "filter_ratio", FMD_TYPE_UINT32, "0" },
 122         { "max_retired_pages", FMD_TYPE_UINT32, "512" },
 123         { "low_ce_thresh", FMD_TYPE_UINT32, "128"},
 124         { "nupos", FMD_TYPE_UINT32, "4"},
 125         { "dupce", FMD_TYPE_UINT32, "120"},
 126         { NULL, 0, NULL }
 127 };
 128
 129 static const fmd_hdl_ops_t fmd_ops = {
 130         gmem_recv,      /* fmdo_recv */
 131         NULL,
 132         gmem_close,     /* fmdo_close */
 133         NULL,           /* fmdo_stats */
 134         gmem_gc         /* fmdo_gc */
 135 };
 136
 137 static const fmd_hdl_info_t fmd_info = {
 138         "SPARC-Generic-Memory Diagnosis", GMEM_VERSION, &fmd_ops, fmd_props
 139 };
 140
 141 static const struct gmem_evdisp_name {
 142         const char *evn_name;
 143         const char *evn_desc;
 144 } gmem_evdisp_names[] = {
 145         { "%s", "ok %s ereports" },                     /* GMEM_EVD_OK */
 146         { "bad_%s", "bad %s ereports" },                /* GMEM_EVD_BAD */
 147         { "unused_%s", "unused %s ereports" },          /* GMEM_EVD_UNUSED */
 148         { "redun_%s", "redundant %s ereports" },        /* GMEM_EVD_REDUN */
 149 };
 150
 151 void
 152 _fmd_fini(fmd_hdl_t *hdl)
 153 {
 154         gmem_mem_fini(hdl);
 155         gmem_page_fini(hdl);
 156 }
 157
 158 void
 159 _fmd_init(fmd_hdl_t *hdl)
 160 {
 161         gmem_subscriber_t *sp;
 162
 163         if (fmd_hdl_register(hdl, FMD_API_VERSION, &fmd_info) != 0)
 164                 return; /* error in configuration file or fmd_info */
 165
 166         for (sp = gmem_subscribers; sp->subr_class != NULL; sp++)
 167                 fmd_hdl_subscribe(hdl, sp->subr_class);
 168
 169         bzero(&gmem, sizeof (gmem_t));
 170
 171         gmem.gm_stats = (gmem_stat_t *)fmd_stat_create(hdl, FMD_STAT_NOALLOC,
 172             sizeof (gm_stats) / sizeof (fmd_stat_t),
 173             (fmd_stat_t *)&gm_stats);
 174
 175         for (sp = gmem_subscribers; sp->subr_class != NULL; sp++) {
 176                 const char *type = strrchr(sp->subr_class, '.') + 1;
 177                 int i;
 178
 179                 for (i = 0; i < sizeof (gmem_evdisp_names) /
 180                     sizeof (struct gmem_evdisp_name); i++) {
 181                         fmd_stat_t *stat = ((fmd_stat_t *)&sp->subr_stat) + i;
 182
 183                         (void) snprintf(stat->fmds_name,
 184                             sizeof (stat->fmds_name),
 185                             gmem_evdisp_names[i].evn_name, type);
 186
 187                         stat->fmds_type = FMD_TYPE_UINT64;
 188                         (void) snprintf(stat->fmds_desc,
 189                             sizeof (stat->fmds_desc),
 190                             gmem_evdisp_names[i].evn_desc, type);
 191
 192                         (void) fmd_stat_create(hdl, FMD_STAT_NOALLOC, 1, stat);
 193                 }
 194         }
 195
 196         gmem.gm_pagesize = sysconf(_SC_PAGESIZE);
 197         gmem.gm_pagemask = ~((uint64_t)gmem.gm_pagesize - 1);
 198
 199         gmem.gm_max_retired_pages = fmd_prop_get_int32(hdl,
 200             "max_retired_pages");
 201
 202         gmem.gm_ce_n = fmd_prop_get_int32(hdl, "ce_n");
 203         gmem.gm_ce_t = fmd_prop_get_int64(hdl, "ce_t");
 204         gmem.gm_filter_ratio = fmd_prop_get_int32(hdl, "filter_ratio");
 205         gmem.gm_low_ce_thresh = fmd_prop_get_int32(hdl, "low_ce_thresh");
 206         gmem.gm_nupos = fmd_prop_get_int32(hdl, "nupos");
 207         gmem.gm_dupce = fmd_prop_get_int32(hdl, "dupce");
 208
 209
 210         if (gmem_state_restore(hdl) < 0) {
 211                 _fmd_fini(hdl);
 212                 fmd_hdl_abort(hdl, "failed to restore saved state\n");
 213         }
 214 }