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 Littleneck platform plug-in to create environment tree nodes. 31 */ 32 #define _POSIX_PRIORITY_SCHEDULING 1 33 34 #include <picl.h> 35 #include <picltree.h> 36 #include <stdio.h> 37 #include <time.h> 38 #include <fcntl.h> 39 #include <unistd.h> 40 #include <stdlib.h> 41 #include <stdio.h> 42 #include <libintl.h> 43 #include <limits.h> 44 #include <ctype.h> 45 #include <errno.h> 46 #include <semaphore.h> 47 #include <syslog.h> 48 #include <string.h> 49 #include <sys/types.h> 50 #include <sys/systeminfo.h> 51 #include <psvc_objects.h> 52 53 static psvc_opaque_t hdlp; 54 55 #define PSVC_PLUGIN_VERSION PICLD_PLUGIN_VERSION_1 56 57 #pragma init(psvc_psr_plugin_register) /* place in .init section */ 58 59 typedef struct { 60 char name[32]; 61 picl_nodehdl_t node; 62 } picl_psvc_t; 63 64 extern struct handle { 65 uint32_t obj_count; 66 picl_psvc_t *objects; 67 FILE *fp; 68 } psvc_hdl; 69 70 void psvc_psr_plugin_init(void); 71 void psvc_psr_plugin_fini(void); 72 73 picld_plugin_reg_t psvc_psr_reg = { 74 PSVC_PLUGIN_VERSION, 75 PICLD_PLUGIN_CRITICAL, 76 "PSVC_PSR", 77 psvc_psr_plugin_init, 78 psvc_psr_plugin_fini 79 }; 80 81 #define PSVC_INIT_ERR gettext("%s: Error in psvc_init(): %s\n") 82 #define PTREE_DELETE_NODE_ERR gettext("%s: ptree_delete_node() failed: %s\n") 83 #define PTREE_GET_NODE_ERR \ 84 gettext("%s: ptree_get_node_by_path() failed: %s\n") 85 86 extern int ptree_get_node_by_path(const char *, picl_nodehdl_t *); 87 88 struct node_file { 89 char path[256]; 90 char file[256]; 91 } dev_pr_info[] = { 92 {"/SYSTEM/CPU0_MOD_CARD", 93 "/devices/pci@8,700000/ebus@5/i2c@1,30/temperature@0,30:die_temp"}, 94 {"/SYSTEM/CPU1_MOD_CARD", 95 "/devices/pci@8,700000/ebus@5/i2c@1,30/temperature@0,98:die_temp"}, 96 {"/SYSTEM/AT24C64_A0_1", 97 "/devices/pci@8,700000/ebus@5/i2c@1,2e/dimm@1,a0:dimm"}, 98 {"/SYSTEM/AT24C64_A2_1", 99 "/devices/pci@8,700000/ebus@5/i2c@1,2e/dimm@1,a2:dimm"}, 100 {"/SYSTEM/AT24C64_A4_1", 101 "/devices/pci@8,700000/ebus@5/i2c@1,2e/dimm@1,a4:dimm"}, 102 {"/SYSTEM/AT24C64_A6_1", 103 "/devices/pci@8,700000/ebus@5/i2c@1,2e/dimm@1,a6:dimm"}, 104 {"/SYSTEM/AT24C64_A8_1", 105 "/devices/pci@8,700000/ebus@5/i2c@1,2e/dimm@1,a8:dimm"}, 106 {"/SYSTEM/AT24C64_AA_1", 107 "/devices/pci@8,700000/ebus@5/i2c@1,2e/dimm@1,aa:dimm"}, 108 {"/SYSTEM/AT24C64_AC_1", 109 "/devices/pci@8,700000/ebus@5/i2c@1,2e/dimm@1,ac:dimm"}, 110 {"/SYSTEM/AT24C64_AE_1", 111 "/devices/pci@8,700000/ebus@5/i2c@1,2e/dimm@1,ae:dimm"} 112 }; 113 #define DEV_PR_COUNT (sizeof (dev_pr_info) / sizeof (struct node_file)) 114 115 static void init_err(char *fmt, char *arg1, char *arg2) 116 { 117 char msg[256]; 118 119 sprintf(msg, fmt, arg1, arg2); 120 syslog(LOG_ERR, msg); 121 } 122 123 void 124 psvc_psr_plugin_init(void) 125 { 126 char *funcname = "psvc_plugin_init"; 127 int32_t i; 128 int err; 129 boolean_t present; 130 /* 131 * So the volatile read/write routines can retrieve data from 132 * psvc or picl 133 */ 134 err = psvc_init(&hdlp); 135 if (err != 0) { 136 init_err(PSVC_INIT_ERR, funcname, strerror(errno)); 137 138 } 139 140 /* 141 * Remove nodes whose devices aren't present from the picl tree. 142 */ 143 for (i = 0; i < psvc_hdl.obj_count; ++i) { 144 picl_psvc_t *objp; 145 uint64_t features; 146 objp = &psvc_hdl.objects[i]; 147 148 err = psvc_get_attr(hdlp, objp->name, PSVC_PRESENCE_ATTR, 149 &present); 150 if (err != PSVC_SUCCESS) 151 continue; 152 err = psvc_get_attr(hdlp, objp->name, PSVC_FEATURES_ATTR, 153 &features); 154 if (err != PSVC_SUCCESS) 155 continue; 156 if ((features & (PSVC_DEV_HOTPLUG | PSVC_DEV_OPTION)) && 157 (present == PSVC_ABSENT)) { 158 err = ptree_delete_node(objp->node); 159 if (err != 0) { 160 init_err(PTREE_DELETE_NODE_ERR, funcname, 161 picl_strerror(err)); 162 return; 163 } 164 } 165 } 166 167 /* 168 * Remove PICL device nodes if their /devices file isn't present or 169 * if the device file is present but the open returns ENXIO 170 * which indicates that the node file doesn't represent a device 171 * tree node and is probably a relic from some previous boot config 172 */ 173 for (i = 0; i < DEV_PR_COUNT; ++i) { 174 picl_nodehdl_t dev_pr_node; 175 int fd; 176 fd = open(dev_pr_info[i].file, O_RDONLY); 177 if (fd != -1) { 178 close(fd); 179 continue; 180 } 181 if ((errno != ENOENT) && (errno != ENXIO)) 182 continue; 183 184 err = ptree_get_node_by_path(dev_pr_info[i].path, &dev_pr_node); 185 if (err != 0) { 186 init_err(PTREE_GET_NODE_ERR, funcname, 187 picl_strerror(err)); 188 return; 189 } 190 191 err = ptree_delete_node(dev_pr_node); 192 if (err != 0) { 193 init_err(PTREE_DELETE_NODE_ERR, funcname, 194 picl_strerror(err)); 195 return; 196 } 197 } 198 free(psvc_hdl.objects); 199 } 200 201 void 202 psvc_psr_plugin_fini(void) 203 { 204 psvc_fini(hdlp); 205 } 206 207 void 208 psvc_psr_plugin_register(void) 209 { 210 picld_plugin_register(&psvc_psr_reg); 211 } 212