usr/src/cmd/picl/plugins/sun4u/cherrystone/psvcplugin/psvcplugin.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 2004 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 /*
  30  * PICL Cherrystone platform plug-in to remove environment tree nodes
  31  * if corresponding physical device is not present.  For creating
  32  * the picltree nodes, see:
  33  * usr/src/cmd/picl/plugins/sun4u/psvc/psvcplugin/psvcplugin.c
  34  */
  35 #define _POSIX_PRIORITY_SCHEDULING 1
  36
  37 #include <picl.h>
  38 #include <picltree.h>
  39 #include <stdio.h>
  40 #include <time.h>
  41 #include <fcntl.h>
  42 #include <unistd.h>
  43 #include <stdlib.h>
  44 #include  <stdio.h>
  45 #include  <libintl.h>
  46 #include <limits.h>
  47 #include  <ctype.h>
  48 #include <errno.h>
  49 #include <semaphore.h>
  50 #include <syslog.h>
  51 #include <string.h>
  52 #include <sys/types.h>
  53 #include <sys/systeminfo.h>
  54 #include <psvc_objects.h>
  55
  56 static psvc_opaque_t hdlp;
  57
  58 #define PSVC_PLUGIN_VERSION     PICLD_PLUGIN_VERSION_1
  59
  60 #pragma init(psvc_psr_plugin_register)  /* place in .init section */
  61
  62 typedef struct {
  63         char    name[32];
  64         picl_nodehdl_t  node;
  65 } picl_psvc_t;
  66
  67 extern struct handle {
  68         uint32_t        obj_count;
  69         picl_psvc_t *objects;
  70         FILE *fp;
  71 } psvc_hdl;
  72
  73 void psvc_psr_plugin_init(void);
  74 void psvc_psr_plugin_fini(void);
  75
  76 picld_plugin_reg_t psvc_psr_reg = {
  77         PSVC_PLUGIN_VERSION,
  78         PICLD_PLUGIN_CRITICAL,
  79         "PSVC_PSR",
  80         psvc_psr_plugin_init,
  81         psvc_psr_plugin_fini
  82 };
  83
  84 #define PSVC_INIT_ERR           gettext("%s: Error in psvc_init(): %s\n")
  85 #define PTREE_DELETE_NODE_ERR   gettext("%s: ptree_delete_node() failed: %s\n")
  86 #define PTREE_GET_NODE_ERR                      \
  87         gettext("%s: ptree_get_node_by_path() failed: %s\n")
  88
  89 extern int ptree_get_node_by_path(const char *, picl_nodehdl_t *);
  90
  91 /* ======================================== */
  92 struct node_file {
  93         char    path[256];
  94         char    file[256];
  95 } dev_pr_info[] = {
  96 /* Search for memory */
  97 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_A0_0",
  98         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@0,a0:fru"},
  99 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_A2_0",
 100         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@0,a2:fru"},
 101 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_A4_0",
 102         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@0,a4:fru"},
 103 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_A6_0",
 104         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@0,a6:fru"},
 105 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_A8_0",
 106         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@0,a8:fru"},
 107 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_AA_0",
 108         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@0,aa:fru"},
 109 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_AC_0",
 110         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@0,ac:fru"},
 111 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_AE_0",
 112         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@0,ae:fru"},
 113 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_A0_1",
 114         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@1,a0:fru"},
 115 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_A2_1",
 116         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@1,a2:fru"},
 117 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_A4_1",
 118         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@1,a4:fru"},
 119 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_A6_1",
 120         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@1,a6:fru"},
 121 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_A8_1",
 122         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@1,a8:fru"},
 123 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_AA_1",
 124         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@1,aa:fru"},
 125 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_AC_1",
 126         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@1,ac:fru"},
 127 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_AE_1",
 128         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@1,ae:fru"},
 129 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_A0_2",
 130         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@2,a0:fru"},
 131 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_A2_2",
 132         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@2,a2:fru"},
 133 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_A4_2",
 134         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@2,a4:fru"},
 135 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_A6_2",
 136         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@2,a6:fru"},
 137 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_A8_2",
 138         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@2,a8:fru"},
 139 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_AA_2",
 140         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@2,aa:fru"},
 141 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_AC_2",
 142         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@2,ac:fru"},
 143 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C02_AE_2",
 144         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@2,ae:fru"},
 145 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_A0_3",
 146         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@3,a0:fru"},
 147 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_A2_3",
 148         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@3,a2:fru"},
 149 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_A4_3",
 150         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@3,a4:fru"},
 151 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_A6_3",
 152         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@3,a6:fru"},
 153 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_A8_3",
 154         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@3,a8:fru"},
 155 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_AA_3",
 156         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@3,aa:fru"},
 157 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_AC_3",
 158         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@3,ac:fru"},
 159 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C02_AE_3",
 160         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@3,ae:fru"},
 161 /* Search for 64Kbit SPD */
 162 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD/24C64_A0_4",
 163         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@4,a0:fru"},
 164 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD/24C64_A2_4",
 165         "/devices/pci@9,700000/ebus@1/i2c@1,2e/fru@4,a2:fru"},
 166
 167 /*
 168  * Search for CPU Module cards.  We check one cpu's die temperature
 169  * sensor If not present, then we remove the entire node since module
 170  * cards come with two cpus in them, each cpu having a die temperature
 171  * sensor
 172  */
 173
 174 {"/SYSTEM/MOTHERBOARD/CPU_0_2_MOD_SLOT/CPU_0_2_MOD_CARD",
 175         "/devices/pci@9,700000/ebus@1/i2c@1,30/temperature@0,30:die_temp"},
 176 {"/SYSTEM/MOTHERBOARD/CPU_1_3_MOD_SLOT/CPU_1_3_MOD_CARD",
 177         "/devices/pci@9,700000/ebus@1/i2c@1,30/temperature@0,52:die_temp"},
 178 {"/SYSTEM/SIB_BOARD",
 179         "/devices/pci@9,700000/ebus@1/i2c@1,30/temperature@0,98:die_temp"},
 180 /*
 181  * Check to see if RSC Card FRU is present.  If it is not present,
 182  * then RSC Card is not present, and so we remove those nodes from
 183  * picl tree as well.
 184  */
 185 {"/SYSTEM/RSC_SLOT/RSC_CARD/24C64_A6_5",
 186         "/devices/pci@9,700000/ebus@1/i2c@1,30/fru@0,a6:fru"},
 187 {"/SYSTEM/RSC_SLOT/RSC_CARD",
 188         "/devices/pci@9,700000/ebus@1/i2c@1,30/fru@0,a6:fru"}
 189 };
 190
 191 #define DEV_PR_COUNT (sizeof (dev_pr_info) / sizeof (struct node_file))
 192
 193 static void init_err(char *fmt, char *arg1, char *arg2)
 194 {
 195         char msg[256];
 196
 197         sprintf(msg, fmt, arg1, arg2);
 198         syslog(LOG_ERR, msg);
 199 }
 200
 201 void
 202 psvc_psr_plugin_init(void)
 203 {
 204         char *funcname = "psvc_plugin_psr_init";
 205         int32_t i;
 206         int err;
 207         boolean_t present;
 208         /*
 209          * So the volatile read/write routines can retrieve data from
 210          * psvc or picl
 211          */
 212         err = psvc_init(&hdlp);
 213         if (err != 0) {
 214                 init_err(PSVC_INIT_ERR, funcname, strerror(errno));
 215
 216         }
 217
 218         /*
 219          * Remove nodes whose devices aren't present from the picl tree.
 220          */
 221         for (i = 0; i < psvc_hdl.obj_count; ++i) {
 222                 picl_psvc_t *objp;
 223                 uint64_t features;
 224                 objp = &psvc_hdl.objects[i];
 225
 226                 err = psvc_get_attr(hdlp, objp->name, PSVC_PRESENCE_ATTR,
 227                         &present);
 228                 if (err != PSVC_SUCCESS)
 229                         continue;
 230                 err = psvc_get_attr(hdlp, objp->name, PSVC_FEATURES_ATTR,
 231                         &features);
 232                 if (err != PSVC_SUCCESS)
 233                         continue;
 234                 if ((features & (PSVC_DEV_HOTPLUG | PSVC_DEV_OPTION)) &&
 235                         (present == PSVC_ABSENT)) {
 236                         err = ptree_delete_node(objp->node);
 237                         if (err != 0) {
 238                                 init_err(PTREE_DELETE_NODE_ERR, funcname,
 239                                         picl_strerror(err));
 240                                 return;
 241                         }
 242                 }
 243         }
 244
 245         /*
 246          * Remove PICL device nodes if their /devices file isn't present or
 247          * if the device file is present but the open returns ENXIO
 248          * which indicates that the node file doesn't represent a device
 249          * tree node and is probably a relic from some previous boot config
 250          */
 251         for (i = 0; i < DEV_PR_COUNT; ++i) {
 252                 picl_nodehdl_t  dev_pr_node;
 253                 int fd;
 254                 fd = open(dev_pr_info[i].file, O_RDONLY);
 255                 if (fd != -1) {
 256                         close(fd);
 257                         continue;
 258                 }
 259                 if ((errno != ENOENT) && (errno != ENXIO))
 260                         continue;
 261
 262                 err = ptree_get_node_by_path(dev_pr_info[i].path, &dev_pr_node);
 263                 if (err != 0) {
 264                         syslog(LOG_ERR, "Bad path: %s", dev_pr_info[i].path);
 265                         init_err(PTREE_GET_NODE_ERR, funcname,
 266                                 picl_strerror(err));
 267                         return;
 268                 }
 269
 270                 err = ptree_delete_node(dev_pr_node);
 271                 if (err != 0) {
 272                         init_err(PTREE_DELETE_NODE_ERR, funcname,
 273                                 picl_strerror(err));
 274                         return;
 275                 }
 276         }
 277         free(psvc_hdl.objects);
 278 }
 279
 280 void
 281 psvc_psr_plugin_fini(void)
 282 {
 283         psvc_fini(hdlp);
 284         hdlp = NULL;
 285 }
 286
 287 void
 288 psvc_psr_plugin_register(void)
 289 {
 290         picld_plugin_register(&psvc_psr_reg);
 291 }