usr/src/cmd/fm/modules/sun4u/datapath-retire/cda_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 /*
  24  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  25  * Use is subject to license terms.
  26  */
  27
  28 #pragma ident   "%Z%%M% %I%     %E% SMI"
  29
  30 #include <cda.h>
  31
  32 #include <strings.h>
  33 #include <errno.h>
  34 #include <time.h>
  35 #include <sys/utsname.h>
  36 #include <sys/systeminfo.h>
  37 #include <fm/fmd_api.h>
  38 #include <sys/fm/protocol.h>
  39
  40 cda_t cda;
  41
  42 cda_stats_t cda_stats = {
  43         { "dp_offs", FMD_TYPE_UINT64, "successful cpu offlines" },
  44         { "dp_fails", FMD_TYPE_UINT64, "datapath faults unresolveable" },
  45         { "cpu_supp", FMD_TYPE_UINT64, "cpu offlines suppressed" },
  46         { "bad_flts", FMD_TYPE_UINT64, "invalid fault events received" },
  47         { "nop_flts", FMD_TYPE_UINT64, "inapplicable fault events received" },
  48 };
  49
  50 typedef struct cda_subscriber {
  51         const char *subr_class;
  52         const char *subr_sname;
  53         uint_t subr_svers;
  54         void (*subr_func)(fmd_hdl_t *, nvlist_t *, nvlist_t *, const char *);
  55 } cda_subscriber_t;
  56
  57 static const cda_subscriber_t cda_subrs[] = {
  58         { "fault.asic.*.dp", FM_FMRI_SCHEME_HC, FM_HC_SCHEME_VERSION,
  59             cda_dp_retire },
  60         { NULL, NULL, 0, NULL }
  61 };
  62
  63 static const cda_subscriber_t *
  64 cda_get_subr(fmd_hdl_t *hdl, nvlist_t *nvl, nvlist_t **asrup)
  65 {
  66         const cda_subscriber_t *sp;
  67         nvlist_t *asru;
  68         char *scheme;
  69         uint8_t version;
  70
  71         if (nvlist_lookup_nvlist(nvl, FM_FAULT_ASRU, &asru) != 0 ||
  72             nvlist_lookup_string(asru, FM_FMRI_SCHEME, &scheme) != 0 ||
  73             nvlist_lookup_uint8(asru, FM_VERSION, &version) != 0) {
  74                 cda_stats.bad_flts.fmds_value.ui64++;
  75                 return (NULL);
  76         }
  77
  78         for (sp = cda_subrs; sp->subr_class != NULL; sp++) {
  79                 if (fmd_nvl_class_match(hdl, nvl, sp->subr_class) &&
  80                     strcmp(scheme, sp->subr_sname) == 0 &&
  81                     version <= sp->subr_svers) {
  82                         *asrup = asru;
  83                         return (sp);
  84                 }
  85         }
  86
  87         cda_stats.nop_flts.fmds_value.ui64++;
  88         return (NULL);
  89 }
  90
  91 static void
  92 cda_recv_list(fmd_hdl_t *hdl, nvlist_t *nvl)
  93 {
  94         char *uuid = NULL;
  95         nvlist_t **nva;
  96         uint_t nvc;
  97         int err = 0;
  98
  99         err |= nvlist_lookup_string(nvl, FM_SUSPECT_UUID, &uuid);
 100         err |= nvlist_lookup_nvlist_array(nvl, FM_SUSPECT_FAULT_LIST,
 101             &nva, &nvc);
 102         if (err != 0) {
 103                 cda_stats.bad_flts.fmds_value.ui64++;
 104                 return;
 105         }
 106
 107         while (nvc-- != 0) {
 108                 nvlist_t *nvl = *nva++;
 109                 const cda_subscriber_t *subr;
 110                 nvlist_t *asru;
 111
 112                 if (fmd_case_uuclosed(hdl, uuid))
 113                         break;
 114
 115                 if ((subr = cda_get_subr(hdl, nvl, &asru)) == NULL)
 116                         continue;
 117
 118                 if (subr->subr_func != NULL)
 119                         subr->subr_func(hdl, nvl, asru, uuid);
 120         }
 121 }
 122
 123 static void
 124 cda_recv_one(fmd_hdl_t *hdl, nvlist_t *nvl)
 125 {
 126         const cda_subscriber_t *subr;
 127         nvlist_t *asru;
 128
 129         if ((subr = cda_get_subr(hdl, nvl, &asru)) == NULL)
 130                 return;
 131
 132         if (subr->subr_func != NULL)
 133                 subr->subr_func(hdl, nvl, asru, NULL);
 134 }
 135
 136 /*ARGSUSED*/
 137 static void
 138 cda_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl, const char *class)
 139 {
 140         fmd_hdl_debug(hdl, "received %s\n", class);
 141
 142         if (strcmp(class, FM_LIST_SUSPECT_CLASS) == 0)
 143                 cda_recv_list(hdl, nvl);
 144         else
 145                 cda_recv_one(hdl, nvl);
 146 }
 147
 148 static const fmd_hdl_ops_t fmd_ops = {
 149         cda_recv,       /* fmdo_recv */
 150         NULL,           /* fmdo_timeout */
 151         NULL,           /* fmdo_close */
 152         NULL,           /* fmdo_stats */
 153         NULL,           /* fmdo_gc */
 154 };
 155
 156 static const fmd_prop_t fmd_props[] = {
 157         { "cpu_tries", FMD_TYPE_UINT32, "10" },
 158         { "cpu_delay", FMD_TYPE_TIME, "1sec" },
 159         { "cpu_offline_enable", FMD_TYPE_BOOL, "true" },
 160         { "cpu_forced_offline", FMD_TYPE_BOOL, "true" },
 161         { NULL, 0, NULL }
 162 };
 163
 164 static const fmd_hdl_info_t fmd_info = {
 165         "Datapath Retire Agent", CDA_VERSION, &fmd_ops, fmd_props
 166 };
 167
 168 static int
 169 cda_platform_check_support(fmd_hdl_t *hdl)
 170 {
 171         char buf[SYS_NMLN];
 172
 173         if (sysinfo(SI_PLATFORM, buf, sizeof (buf)) == -1) {
 174                 fmd_hdl_debug(hdl, "sysinfo failed");
 175                 return (0);
 176         }
 177
 178         if (strcmp(buf, "SUNW,Sun-Fire-15000") == 0 ||
 179             strcmp(buf, "SUNW,Sun-Fire") == 0 ||
 180             strcmp(buf, "SUNW,Netra-T12") == 0)
 181                 return (1);
 182         else
 183                 return (0);
 184 }
 185
 186 void
 187 _fmd_init(fmd_hdl_t *hdl)
 188 {
 189         hrtime_t nsec;
 190
 191         if (fmd_hdl_register(hdl, FMD_API_VERSION, &fmd_info) != 0)
 192                 return; /* invalid data in configuration file */
 193
 194         if (cda_platform_check_support(hdl) == 0) {
 195                 fmd_hdl_debug(hdl, "platform not supported");
 196                 fmd_hdl_unregister(hdl);
 197                 return;
 198         }
 199
 200         fmd_hdl_subscribe(hdl, "fault.asic.*.dp");
 201
 202         (void) fmd_stat_create(hdl, FMD_STAT_NOALLOC, sizeof (cda_stats) /
 203             sizeof (fmd_stat_t), (fmd_stat_t *)&cda_stats);
 204
 205         cda.cda_cpu_tries = fmd_prop_get_int32(hdl, "cpu_tries");
 206
 207         nsec = fmd_prop_get_int64(hdl, "cpu_delay");
 208         cda.cda_cpu_delay.tv_sec = nsec / NANOSEC;
 209         cda.cda_cpu_delay.tv_nsec = nsec % NANOSEC;
 210
 211         cda.cda_cpu_dooffline = fmd_prop_get_int32(hdl,
 212                 "cpu_offline_enable");
 213         cda.cda_cpu_forcedoffline = fmd_prop_get_int32(hdl,
 214             "cpu_forced_offline");
 215 }
 216
 217 /*ARGSUSED*/
 218 void
 219 _fmd_fini(fmd_hdl_t *hdl)
 220 {
 221 }