usr/src/cmd/fm/modules/sun4u/datapath-retire/cda_cpu.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 <cda.h>
  30
  31 #include <fcntl.h>
  32 #include <unistd.h>
  33 #include <strings.h>
  34 #include <errno.h>
  35 #include <time.h>
  36 #include <fm/fmd_api.h>
  37 #include <sys/fm/protocol.h>
  38 #include <sys/processor.h>
  39
  40 static void
  41 cda_cpu_offline(fmd_hdl_t *hdl, uint_t cpuid, int cpustate)
  42 {
  43         int i;
  44
  45         for (i = 0; i < cda.cda_cpu_tries;
  46             i++, (void) nanosleep(&cda.cda_cpu_delay, NULL)) {
  47                 if (p_online(cpuid, cpustate) != -1) {
  48                         fmd_hdl_debug(hdl, "offlined cpu %u\n", cpuid);
  49                         cda_stats.dp_offs.fmds_value.ui64++;
  50                         return;
  51                 }
  52         }
  53
  54         fmd_hdl_debug(hdl, "failed to offline %u: %s\n", cpuid,
  55             strerror(errno));
  56         cda_stats.dp_fails.fmds_value.ui64++;
  57 }
  58
  59 /*ARGSUSED*/
  60 void
  61 cda_dp_retire(fmd_hdl_t *hdl, nvlist_t *nvl, nvlist_t *asru, const char *uuid)
  62 {
  63         int ii;
  64         uint_t cpuid;
  65         uint_t hc_nprs;
  66         nvlist_t **hc_prs;
  67         char *id;
  68
  69         /* Get the hc-list of elements in FMRI, and the size of the list */
  70         if (nvlist_lookup_nvlist_array(asru, FM_FMRI_HC_LIST, &hc_prs,
  71             &hc_nprs) != 0) {
  72                 fmd_hdl_debug(hdl, "failed to get '%s' from dp fault\n",
  73                         FM_FMRI_HC_LIST);
  74                 return;
  75         }
  76
  77         /* walk hc-list and offline each CPU present */
  78         for (ii = 0; ii < hc_nprs; ii++) {
  79                 int cpustate = P_FAULTED;
  80
  81                 if (nvlist_lookup_string(hc_prs[ii], FM_FMRI_HC_ID, &id) != 0) {
  82                         fmd_hdl_debug(hdl, "dp fault missing '%s'\n",
  83                         FM_FMRI_HC_ID);
  84                         cda_stats.bad_flts.fmds_value.ui64++;
  85                         return;
  86                 }
  87
  88                 cpuid = atoi(id);
  89                 if (!cda.cda_cpu_dooffline) {
  90                         fmd_hdl_debug(hdl, "dp suppressed offline of "
  91                                 "CPU %u\n", cpuid);
  92                         cda_stats.dp_supp.fmds_value.ui64++;
  93                         continue;
  94                 }
  95
  96                 if (cda.cda_cpu_forcedoffline)
  97                         cpustate |= P_FORCED;
  98
  99                 cda_cpu_offline(hdl, cpuid, cpustate);
 100         }
 101 }