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 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 /*
27  * PICL plug-in that creates device tree nodes for all platforms
28  */
29 
30 #include <stdio.h>
31 #include <string.h>
32 #include <ctype.h>
33 #include <limits.h>
34 #include <stdlib.h>
35 #include <assert.h>
36 #include <alloca.h>
37 #include <unistd.h>
38 #include <stropts.h>
39 #include <syslog.h>
40 #include <libdevinfo.h>
41 #include <sys/dkio.h>
42 #include <sys/vtoc.h>
43 #include <sys/time.h>
44 #include <fcntl.h>
45 #include <picl.h>
46 #include <picltree.h>
47 #include <sys/types.h>
48 #include <sys/processor.h>
49 #include <kstat.h>
50 #include <sys/sysinfo.h>
51 #include <dirent.h>
52 #include <libintl.h>
53 #include <pthread.h>
54 #include <libnvpair.h>
55 #include <sys/utsname.h>
56 #include <sys/systeminfo.h>
57 #include <sys/obpdefs.h>
58 #include <sys/openpromio.h>
59 #include "picldevtree.h"
60 
61 /*
62  * Plugin registration entry points
63  */
64 static void	picldevtree_register(void);
65 static void	picldevtree_init(void);
66 static void	picldevtree_fini(void);
67 
68 static void	picldevtree_evhandler(const char *ename, const void *earg,
69 		    size_t size, void *cookie);
70 
71 #pragma	init(picldevtree_register)
72 
73 /*
74  * Log message texts
75  */
76 #define	DEVINFO_PLUGIN_INIT_FAILED	gettext("SUNW_picldevtree failed!\n")
77 #define	PICL_EVENT_DROPPED	\
78 	gettext("SUNW_picldevtree '%s' event dropped.\n")
79 
80 /*
81  * Macro to get PCI device id (from IEEE 1275 spec)
82  */
83 #define	PCI_DEVICE_ID(x)			(((x) >> 11) & 0x1f)
84 /*
85  * Local variables
86  */
87 static picld_plugin_reg_t  my_reg_info = {
88 	PICLD_PLUGIN_VERSION_1,
89 	PICLD_PLUGIN_CRITICAL,
90 	"SUNW_picldevtree",
91 	picldevtree_init,
92 	picldevtree_fini
93 };
94 
95 /*
96  * Debug enabling environment variable
97  */
98 #define	SUNW_PICLDEVTREE_PLUGIN_DEBUG	"SUNW_PICLDEVTREE_PLUGIN_DEBUG"
99 static	int		picldevtree_debug = 0;
100 
101 static	conf_entries_t 	*conf_name_class_map = NULL;
102 static	builtin_map_t	sun4u_map[] = {
103 	/* MAX_NAMEVAL_SIZE */
104 	{ "SUNW,bpp", PICL_CLASS_PARALLEL},
105 	{ "parallel", PICL_CLASS_PARALLEL},
106 	{ "floppy", PICL_CLASS_FLOPPY},
107 	{ "memory", PICL_CLASS_MEMORY},
108 	{ "ebus", PICL_CLASS_EBUS},
109 	{ "i2c", PICL_CLASS_I2C},
110 	{ "usb", PICL_CLASS_USB},
111 	{ "isa", PICL_CLASS_ISA},
112 	{ "dma", PICL_CLASS_DMA},
113 	{ "keyboard", PICL_CLASS_KEYBOARD},
114 	{ "mouse", PICL_CLASS_MOUSE},
115 	{ "fan-control", PICL_CLASS_FAN_CONTROL},
116 	{ "sc", PICL_CLASS_SYSTEM_CONTROLLER},
117 	{ "dimm", PICL_CLASS_SEEPROM},
118 	{ "dimm-fru", PICL_CLASS_SEEPROM},
119 	{ "cpu", PICL_CLASS_SEEPROM},
120 	{ "cpu-fru", PICL_CLASS_SEEPROM},
121 	{ "flashprom", PICL_CLASS_FLASHPROM},
122 	{ "temperature", PICL_CLASS_TEMPERATURE_DEVICE},
123 	{ "motherboard", PICL_CLASS_SEEPROM},
124 	{ "motherboard-fru", PICL_CLASS_SEEPROM},
125 	{ "motherboard-fru-prom", PICL_CLASS_SEEPROM},
126 	{ "pmu", PICL_CLASS_PMU},
127 	{ "sound", PICL_CLASS_SOUND},
128 	{ "firewire", PICL_CLASS_FIREWIRE},
129 	{ "i2c-at34c02", PICL_CLASS_SEEPROM},
130 	{ "hardware-monitor", PICL_CLASS_HARDWARE_MONITOR},
131 	{ "", ""}
132 };
133 static	builtin_map_t	i86pc_map[] = {
134 	/* MAX_NAMEVAL_SIZE */
135 	{ "cpus", PICL_CLASS_I86CPUS},
136 	{ "cpu", PICL_CLASS_CPU},
137 	{ "memory", PICL_CLASS_MEMORY},
138 	{ "asy", PICL_CLASS_SERIAL},
139 	{ "", ""}
140 };
141 static	pname_type_map_t	pname_type_map[] = {
142 	{ "reg", PICL_PTYPE_BYTEARRAY},
143 	{ "device_type", PICL_PTYPE_CHARSTRING},
144 	{ "ranges", PICL_PTYPE_BYTEARRAY},
145 	{ "status", PICL_PTYPE_CHARSTRING},
146 	{ "compatible", PICL_PTYPE_CHARSTRING},
147 	{ "interrupts", PICL_PTYPE_BYTEARRAY},
148 	{ "model", PICL_PTYPE_CHARSTRING},
149 	{ "address", PICL_PTYPE_BYTEARRAY},
150 	{ "vendor-id", PICL_PTYPE_UNSIGNED_INT},
151 	{ "device-id", PICL_PTYPE_UNSIGNED_INT},
152 	{ "revision-id", PICL_PTYPE_UNSIGNED_INT},
153 	{ "class-code", PICL_PTYPE_UNSIGNED_INT},
154 	{ "min-grant", PICL_PTYPE_UNSIGNED_INT},
155 	{ "max-latency", PICL_PTYPE_UNSIGNED_INT},
156 	{ "devsel-speed", PICL_PTYPE_UNSIGNED_INT},
157 	{ "subsystem-id", PICL_PTYPE_UNSIGNED_INT},
158 	{ "subsystem-vendor-id", PICL_PTYPE_UNSIGNED_INT},
159 	{ "assigned-addresses", PICL_PTYPE_BYTEARRAY},
160 	{ "configuration#", PICL_PTYPE_UNSIGNED_INT},
161 	{ "assigned-address", PICL_PTYPE_UNSIGNED_INT},
162 	{ "#address-cells", PICL_PTYPE_UNSIGNED_INT},
163 	{ "#size-cells", PICL_PTYPE_UNSIGNED_INT},
164 	{ "clock-frequency", PICL_PTYPE_UNSIGNED_INT},
165 	{ "scsi-initiator-id", PICL_PTYPE_UNSIGNED_INT},
166 	{ "differential", PICL_PTYPE_UNSIGNED_INT},
167 	{ "idprom", PICL_PTYPE_BYTEARRAY},
168 	{ "bus-range", PICL_PTYPE_BYTEARRAY},
169 	{ "alternate-reg", PICL_PTYPE_BYTEARRAY},
170 	{ "power-consumption", PICL_PTYPE_BYTEARRAY},
171 	{ "slot-names", PICL_PTYPE_BYTEARRAY},
172 	{ "burst-sizes", PICL_PTYPE_UNSIGNED_INT},
173 	{ "up-burst-sizes", PICL_PTYPE_UNSIGNED_INT},
174 	{ "slot-address-bits", PICL_PTYPE_UNSIGNED_INT},
175 	{ "eisa-slots", PICL_PTYPE_BYTEARRAY},
176 	{ "dma", PICL_PTYPE_BYTEARRAY},
177 	{ "slot-names-index", PICL_PTYPE_UNSIGNED_INT},
178 	{ "pnp-csn", PICL_PTYPE_UNSIGNED_INT},
179 	{ "pnp-data", PICL_PTYPE_BYTEARRAY},
180 	{ "description", PICL_PTYPE_CHARSTRING},
181 	{ "pnp-id", PICL_PTYPE_CHARSTRING},
182 	{ "max-frame-size", PICL_PTYPE_UNSIGNED_INT},
183 	{ "address-bits", PICL_PTYPE_UNSIGNED_INT},
184 	{ "local-mac-address", PICL_PTYPE_BYTEARRAY},
185 	{ "mac-address", PICL_PTYPE_BYTEARRAY},
186 	{ "character-set", PICL_PTYPE_CHARSTRING},
187 	{ "available", PICL_PTYPE_BYTEARRAY},
188 	{ "port-wwn", PICL_PTYPE_BYTEARRAY},
189 	{ "node-wwn", PICL_PTYPE_BYTEARRAY},
190 	{ "width", PICL_PTYPE_UNSIGNED_INT},
191 	{ "linebytes", PICL_PTYPE_UNSIGNED_INT},
192 	{ "height", PICL_PTYPE_UNSIGNED_INT},
193 	{ "banner-name", PICL_PTYPE_CHARSTRING},
194 	{ "reset-reason", PICL_PTYPE_CHARSTRING},
195 	{ "implementation#", PICL_PTYPE_UNSIGNED_INT},
196 	{ "version#", PICL_PTYPE_UNSIGNED_INT},
197 	{ "icache-size", PICL_PTYPE_UNSIGNED_INT},
198 	{ "icache-line-size", PICL_PTYPE_UNSIGNED_INT},
199 	{ "icache-associativity", PICL_PTYPE_UNSIGNED_INT},
200 	{ "l1-icache-size", PICL_PTYPE_UNSIGNED_INT},
201 	{ "l1-icache-line-size", PICL_PTYPE_UNSIGNED_INT},
202 	{ "l1-icache-associativity", PICL_PTYPE_UNSIGNED_INT},
203 	{ "#itlb-entries", PICL_PTYPE_UNSIGNED_INT},
204 	{ "dcache-size", PICL_PTYPE_UNSIGNED_INT},
205 	{ "dcache-line-size", PICL_PTYPE_UNSIGNED_INT},
206 	{ "dcache-associativity", PICL_PTYPE_UNSIGNED_INT},
207 	{ "l1-dcache-size", PICL_PTYPE_UNSIGNED_INT},
208 	{ "l1-dcache-line-size", PICL_PTYPE_UNSIGNED_INT},
209 	{ "l1-dcache-associativity", PICL_PTYPE_UNSIGNED_INT},
210 	{ "#dtlb-entries", PICL_PTYPE_UNSIGNED_INT},
211 	{ "ecache-size", PICL_PTYPE_UNSIGNED_INT},
212 	{ "ecache-line-size", PICL_PTYPE_UNSIGNED_INT},
213 	{ "ecache-associativity", PICL_PTYPE_UNSIGNED_INT},
214 	{ "l2-cache-size", PICL_PTYPE_UNSIGNED_INT},
215 	{ "l2-cache-line-size", PICL_PTYPE_UNSIGNED_INT},
216 	{ "l2-cache-associativity", PICL_PTYPE_UNSIGNED_INT},
217 	{ "l2-cache-sharing", PICL_PTYPE_BYTEARRAY},
218 	{ "mask#", PICL_PTYPE_UNSIGNED_INT},
219 	{ "manufacturer#", PICL_PTYPE_UNSIGNED_INT},
220 	{ "sparc-version", PICL_PTYPE_UNSIGNED_INT},
221 	{ "version", PICL_PTYPE_CHARSTRING},
222 	{ "cpu-model", PICL_PTYPE_UNSIGNED_INT},
223 	{ "memory-layout", PICL_PTYPE_BYTEARRAY},
224 	{ "#interrupt-cells", PICL_PTYPE_UNSIGNED_INT},
225 	{ "interrupt-map", PICL_PTYPE_BYTEARRAY},
226 	{ "interrupt-map-mask", PICL_PTYPE_BYTEARRAY}
227 };
228 
229 #define	PNAME_MAP_SIZE	sizeof (pname_type_map) / sizeof (pname_type_map_t)
230 
231 static	builtin_map_t	*builtin_map_ptr = NULL;
232 static	int		builtin_map_size = 0;
233 static	char		mach_name[SYS_NMLN];
234 static	di_prom_handle_t	ph = DI_PROM_HANDLE_NIL;
235 static	int		snapshot_stale;
236 
237 /*
238  * UnitAddress mapping table
239  */
240 static	unitaddr_func_t	encode_default_unitaddr;
241 static	unitaddr_func_t	encode_optional_unitaddr;
242 static	unitaddr_func_t	encode_scsi_unitaddr;
243 static	unitaddr_func_t	encode_upa_unitaddr;
244 static	unitaddr_func_t	encode_gptwo_jbus_unitaddr;
245 static	unitaddr_func_t	encode_pci_unitaddr;
246 
247 static	unitaddr_map_t unitaddr_map_table[] = {
248 	{PICL_CLASS_JBUS, encode_gptwo_jbus_unitaddr, 0},
249 	{PICL_CLASS_GPTWO, encode_gptwo_jbus_unitaddr, 0},
250 	{PICL_CLASS_PCI, encode_pci_unitaddr, 0},
251 	{PICL_CLASS_PCIEX, encode_pci_unitaddr, 0},
252 	{PICL_CLASS_UPA, encode_upa_unitaddr, 0},
253 	{PICL_CLASS_SCSI, encode_scsi_unitaddr, 0},
254 	{PICL_CLASS_SCSI2, encode_scsi_unitaddr, 0},
255 	{PICL_CLASS_EBUS, encode_default_unitaddr, 2},
256 	{PICL_CLASS_SBUS, encode_default_unitaddr, 2},
257 	{PICL_CLASS_I2C, encode_default_unitaddr, 2},
258 	{PICL_CLASS_USB, encode_default_unitaddr, 1},
259 	{PICL_CLASS_PMU, encode_optional_unitaddr, 2},
260 	{NULL, encode_default_unitaddr, 0}
261 };
262 
263 static int add_unitaddr_prop_to_subtree(picl_nodehdl_t nodeh);
264 static int get_unitaddr(picl_nodehdl_t parh, picl_nodehdl_t nodeh,
265 	char *unitaddr, size_t ualen);
266 static void set_pci_pciex_deviceid(picl_nodehdl_t plafh);
267 
268 /*
269  * The mc event completion handler.
270  * The arguments are event name buffer and a packed nvlist buffer
271  * with the size specifying the size of unpacked nvlist. These
272  * buffers are deallcoated here.
273  *
274  * Also, if a memory controller node is being removed then destroy the
275  * PICL subtree associated with that memory controller.
276  */
277 static void
278 mc_completion_handler(char *ename, void *earg, size_t size)
279 {
280 	picl_nodehdl_t	mch;
281 	nvlist_t	*unpack_nvl;
282 
283 	if (strcmp(ename, PICLEVENT_MC_REMOVED) == 0 &&
284 	    nvlist_unpack(earg, size, &unpack_nvl, NULL) == 0) {
285 		mch = NULL;
286 		(void) nvlist_lookup_uint64(unpack_nvl,
287 		    PICLEVENTARG_NODEHANDLE, &mch);
288 		if (mch != NULL) {
289 			if (picldevtree_debug)
290 				syslog(LOG_INFO,
291 				    "picldevtree: destroying_node:%llx\n",
292 				    mch);
293 			(void) ptree_destroy_node(mch);
294 		}
295 		nvlist_free(unpack_nvl);
296 	}
297 
298 	free(ename);
299 	free(earg);
300 }
301 
302 /*
303  * Functions to post memory controller change event
304  */
305 static int
306 post_mc_event(char *ename, picl_nodehdl_t mch)
307 {
308 	nvlist_t	*nvl;
309 	size_t		nvl_size;
310 	char		*pack_buf;
311 	char		*ev_name;
312 
313 	ev_name = strdup(ename);
314 	if (ev_name == NULL)
315 		return (-1);
316 
317 	if (nvlist_alloc(&nvl, NV_UNIQUE_NAME_TYPE, NULL)) {
318 		free(ev_name);
319 		return (-1);
320 	}
321 
322 	pack_buf = NULL;
323 	if (nvlist_add_uint64(nvl, PICLEVENTARG_NODEHANDLE, mch) ||
324 	    nvlist_pack(nvl, &pack_buf, &nvl_size, NV_ENCODE_NATIVE, NULL)) {
325 		free(ev_name);
326 		nvlist_free(nvl);
327 		return (-1);
328 	}
329 
330 	if (picldevtree_debug)
331 		syslog(LOG_INFO,
332 		    "picldevtree: posting MC event ename:%s nodeh:%llx\n",
333 		    ev_name, mch);
334 	if (ptree_post_event(ev_name, pack_buf, nvl_size,
335 	    mc_completion_handler) != PICL_SUCCESS) {
336 		free(ev_name);
337 		nvlist_free(nvl);
338 		return (-1);
339 	}
340 	nvlist_free(nvl);
341 	return (0);
342 }
343 
344 /*
345  * Lookup a name in the name to class map tables
346  */
347 static int
348 lookup_name_class_map(char *classbuf, const char *nm)
349 {
350 	conf_entries_t	*ptr;
351 	int		i;
352 
353 	/*
354 	 * check name to class mapping in conf file
355 	 */
356 	ptr = conf_name_class_map;
357 
358 	while (ptr != NULL) {
359 		if (strcmp(ptr->name, nm) == 0) {
360 			(void) strlcpy(classbuf, ptr->piclclass,
361 			    PICL_CLASSNAMELEN_MAX);
362 			return (0);
363 		}
364 		ptr = ptr->next;
365 	}
366 
367 	/*
368 	 * check name to class mapping in builtin table
369 	 */
370 	if (builtin_map_ptr == NULL)
371 		return (-1);
372 
373 	for (i = 0; i < builtin_map_size; ++i)
374 		if (strcmp(builtin_map_ptr[i].name, nm) == 0) {
375 			(void) strlcpy(classbuf, builtin_map_ptr[i].piclclass,
376 			    PICL_CLASSNAMELEN_MAX);
377 			return (0);
378 		}
379 	return (-1);
380 }
381 
382 /*
383  * Lookup a prop name in the pname to class map table
384  */
385 static int
386 lookup_pname_type_map(const char *pname, picl_prop_type_t *type)
387 {
388 	int		i;
389 
390 	for (i = 0; i < PNAME_MAP_SIZE; ++i)
391 		if (strcmp(pname_type_map[i].pname, pname) == 0) {
392 			*type = pname_type_map[i].type;
393 			return (0);
394 		}
395 
396 	return (-1);
397 }
398 
399 /*
400  * Return the number of strings in the buffer
401  */
402 static int
403 get_string_count(char *strdat, int length)
404 {
405 	int	count;
406 	char	*lastnull;
407 	char	*nullptr;
408 
409 	count = 1;
410 	for (lastnull = &strdat[length - 1], nullptr = strchr(strdat, '\0');
411 	    nullptr != lastnull; nullptr = strchr(nullptr+1, '\0'))
412 		count++;
413 
414 	return (count);
415 }
416 
417 /*
418  * Return 1 if the node has a "reg" property
419  */
420 static int
421 has_reg_prop(di_node_t dn)
422 {
423 	int			*pdata;
424 	int			dret;
425 
426 	dret = di_prop_lookup_ints(DDI_DEV_T_ANY, dn, OBP_REG, &pdata);
427 	if (dret > 0)
428 		return (1);
429 
430 	if (!ph)
431 		return (0);
432 	dret = di_prom_prop_lookup_ints(ph, dn, OBP_REG, &pdata);
433 	return (dret < 0 ? 0 : 1);
434 }
435 
436 /*
437  * This function copies a PROM node's device_type property value into the
438  * buffer given by outbuf. The buffer size is PICL_CLASSNAMELEN_MAX.
439  *
440  * We reclassify device_type 'fru-prom' to PICL class 'seeprom'
441  * for FRUID support.
442  */
443 static int
444 get_device_type(char *outbuf, di_node_t dn)
445 {
446 	char			*pdata;
447 	char			*pdatap;
448 	int			dret;
449 	int			i;
450 
451 	dret = di_prop_lookup_strings(DDI_DEV_T_ANY, dn, OBP_DEVICETYPE,
452 	    &pdata);
453 	if (dret <= 0) {
454 		if (!ph)
455 			return (-1);
456 
457 		dret = di_prom_prop_lookup_strings(ph, dn, OBP_DEVICETYPE,
458 		    &pdata);
459 		if (dret <= 0) {
460 			return (-1);
461 		}
462 	}
463 
464 	if (dret != 1) {
465 		/*
466 		 * multiple strings
467 		 */
468 		pdatap = pdata;
469 		for (i = 0; i < (dret - 1); ++i) {
470 			pdatap += strlen(pdatap);
471 			*pdatap = '-';	/* replace '\0' with '-' */
472 			pdatap++;
473 		}
474 	}
475 	if (strcasecmp(pdata, "fru-prom") == 0) {
476 		/*
477 		 * Use PICL 'seeprom' class for fru-prom device types
478 		 */
479 		(void) strlcpy(outbuf, PICL_CLASS_SEEPROM,
480 		    PICL_CLASSNAMELEN_MAX);
481 	} else {
482 		(void) strlcpy(outbuf, pdata, PICL_CLASSNAMELEN_MAX);
483 	}
484 	return (0);
485 }
486 
487 /*
488  * Get the minor node name in the class buffer passed
489  */
490 static int
491 get_minor_class(char *classbuf, di_node_t dn)
492 {
493 	di_minor_t	mi_node;
494 	char		*mi_nodetype;
495 	char		*mi_name;
496 
497 	/* get minor node type */
498 	mi_node = di_minor_next(dn, DI_MINOR_NIL);
499 	if (mi_node == DI_MINOR_NIL)
500 		return (-1);
501 
502 	mi_nodetype = di_minor_nodetype(mi_node);
503 	if (mi_nodetype == NULL) { /* no type info, return name */
504 		mi_name = di_minor_name(mi_node);
505 		if (mi_name == NULL)
506 			return (-1);
507 		(void) strlcpy(classbuf, mi_name, PICL_CLASSNAMELEN_MAX);
508 		return (0);
509 	}
510 
511 #define	DDI_NODETYPE(x, y) (strncmp(x, y, (sizeof (y) - 1)) == 0)
512 
513 	/*
514 	 * convert the string to the picl class for non-peudo nodes
515 	 */
516 	if (DDI_NODETYPE(mi_nodetype, DDI_PSEUDO))
517 		return (-1);
518 	else if (DDI_NODETYPE(mi_nodetype, DDI_NT_BLOCK_WWN))
519 		(void) strcpy(classbuf, PICL_CLASS_BLOCK);
520 	else if (DDI_NODETYPE(mi_nodetype, DDI_NT_BLOCK_CHAN))
521 		(void) strcpy(classbuf, PICL_CLASS_BLOCK);
522 	else if (DDI_NODETYPE(mi_nodetype, DDI_NT_CD))
523 		(void) strcpy(classbuf, PICL_CLASS_CDROM);
524 	else if (DDI_NODETYPE(mi_nodetype, DDI_NT_CD_CHAN))
525 		(void) strcpy(classbuf, PICL_CLASS_CDROM);
526 	else if (DDI_NODETYPE(mi_nodetype, DDI_NT_FD))
527 		(void) strcpy(classbuf, PICL_CLASS_FLOPPY);
528 	else if (DDI_NODETYPE(mi_nodetype, DDI_NT_BLOCK_FABRIC))
529 		(void) strcpy(classbuf, PICL_CLASS_FABRIC);
530 	else if (DDI_NODETYPE(mi_nodetype, DDI_NT_BLOCK))
531 		(void) strcpy(classbuf, PICL_CLASS_BLOCK);
532 	else if (DDI_NODETYPE(mi_nodetype, DDI_NT_MOUSE))
533 		(void) strcpy(classbuf, PICL_CLASS_MOUSE);
534 	else if (DDI_NODETYPE(mi_nodetype, DDI_NT_KEYBOARD))
535 		(void) strcpy(classbuf, PICL_CLASS_KEYBOARD);
536 	else if (DDI_NODETYPE(mi_nodetype, DDI_NT_ATTACHMENT_POINT))
537 		(void) strcpy(classbuf, PICL_CLASS_ATTACHMENT_POINT);
538 	else if (DDI_NODETYPE(mi_nodetype, DDI_NT_TAPE))
539 		(void) strcpy(classbuf, PICL_CLASS_TAPE);
540 	else if (DDI_NODETYPE(mi_nodetype, DDI_NT_SCSI_ENCLOSURE))
541 		(void) strcpy(classbuf, PICL_CLASS_SCSI);
542 	else if (DDI_NODETYPE(mi_nodetype, DDI_NT_ENCLOSURE)) {
543 		char	*colon;
544 
545 		if ((colon = strchr(mi_nodetype, ':')) == NULL)
546 			return (-1);
547 		++colon;
548 		(void) strcpy(classbuf, colon);
549 	} else {	/* unrecognized type, return name */
550 		mi_name = di_minor_name(mi_node);
551 		if (mi_name == NULL)
552 			return (-1);
553 		(void) strlcpy(classbuf, mi_name, PICL_CLASSNAMELEN_MAX);
554 	}
555 	return (0);
556 }
557 
558 /*
559  * Derive PICL class using the compatible property of the node
560  * We use the map table to map compatible property value to
561  * class.
562  */
563 static int
564 get_compatible_class(char *outbuf, di_node_t dn)
565 {
566 	char			*pdata;
567 	char			*pdatap;
568 	int			dret;
569 	int			i;
570 
571 	dret = di_prop_lookup_strings(DDI_DEV_T_ANY, dn, OBP_COMPATIBLE,
572 	    &pdata);
573 	if (dret <= 0) {
574 		if (!ph)
575 			return (-1);
576 
577 		dret = di_prom_prop_lookup_strings(ph, dn, OBP_COMPATIBLE,
578 		    &pdata);
579 		if (dret <= 0) {
580 			return (-1);
581 		}
582 	}
583 
584 	pdatap = pdata;
585 	for (i = 0; i < dret; ++i) {
586 		if (lookup_name_class_map(outbuf, pdatap) == 0)
587 			return (0);
588 		pdatap += strlen(pdatap);
589 		pdatap++;
590 	}
591 	return (-1);
592 }
593 
594 /*
595  * For a given device node find the PICL class to use. Returns NULL
596  * for non device node
597  */
598 static int
599 get_node_class(char *classbuf, di_node_t dn, const char *nodename)
600 {
601 	if (get_device_type(classbuf, dn) == 0) {
602 		if (di_nodeid(dn) == DI_PROM_NODEID) {
603 			/*
604 			 * discard place holder nodes
605 			 */
606 			if ((strcmp(classbuf, DEVICE_TYPE_BLOCK) == 0) ||
607 			    (strcmp(classbuf, DEVICE_TYPE_BYTE) == 0) ||
608 			    (strcmp(classbuf, DEVICE_TYPE_SES) == 0) ||
609 			    (strcmp(classbuf, DEVICE_TYPE_FP) == 0) ||
610 			    (strcmp(classbuf, DEVICE_TYPE_DISK) == 0))
611 				return (-1);
612 
613 			return (0);
614 		}
615 		return (0);	/* return device_type value */
616 	}
617 
618 	if (get_compatible_class(classbuf, dn) == 0) {
619 		return (0);	/* derive class using compatible prop */
620 	}
621 
622 	if (lookup_name_class_map(classbuf, nodename) == 0)
623 		return (0);	/* derive class using name prop */
624 
625 	if (has_reg_prop(dn)) { /* use default obp-device */
626 		(void) strcpy(classbuf, PICL_CLASS_OBP_DEVICE);
627 		return (0);
628 	}
629 
630 	return (get_minor_class(classbuf, dn));
631 }
632 
633 /*
634  * Add a table property containing nrows with one column
635  */
636 static int
637 add_string_list_prop(picl_nodehdl_t nodeh, char *name, char *strlist,
638     unsigned int nrows)
639 {
640 	ptree_propinfo_t	propinfo;
641 	picl_prophdl_t		proph;
642 	picl_prophdl_t		tblh;
643 	int			err;
644 	unsigned int		i;
645 	unsigned int		j;
646 	picl_prophdl_t		*proprow;
647 	int			len;
648 
649 #define	NCOLS_IN_STRING_TABLE	1
650 
651 	err = ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
652 	    PICL_PTYPE_TABLE, PICL_READ, sizeof (picl_prophdl_t), name,
653 	    NULL, NULL);
654 	if (err != PICL_SUCCESS)
655 		return (err);
656 
657 	err = ptree_create_table(&tblh);
658 	if (err != PICL_SUCCESS)
659 		return (err);
660 
661 	err = ptree_create_and_add_prop(nodeh, &propinfo, &tblh, &proph);
662 	if (err != PICL_SUCCESS)
663 		return (err);
664 
665 	proprow = alloca(sizeof (picl_prophdl_t) * nrows);
666 	if (proprow == NULL) {
667 		(void) ptree_destroy_prop(proph);
668 		return (PICL_FAILURE);
669 	}
670 
671 	for (j = 0; j < nrows; ++j) {
672 		len = strlen(strlist) + 1;
673 		err = ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
674 		    PICL_PTYPE_CHARSTRING, PICL_READ, len, name,
675 		    NULL, NULL);
676 		if (err != PICL_SUCCESS)
677 			break;
678 		err = ptree_create_prop(&propinfo, strlist, &proprow[j]);
679 		if (err != PICL_SUCCESS)
680 			break;
681 		strlist += len;
682 		err = ptree_add_row_to_table(tblh, NCOLS_IN_STRING_TABLE,
683 		    &proprow[j]);
684 		if (err != PICL_SUCCESS)
685 			break;
686 	}
687 
688 	if (err != PICL_SUCCESS) {
689 		for (i = 0; i < j; ++i)
690 			(void) ptree_destroy_prop(proprow[i]);
691 		(void) ptree_delete_prop(proph);
692 		(void) ptree_destroy_prop(proph);
693 		return (err);
694 	}
695 
696 	return (PICL_SUCCESS);
697 }
698 
699 /*
700  * return 1 if this node has this property with the given value
701  */
702 static int
703 compare_string_propval(picl_nodehdl_t nodeh, const char *pname,
704     const char *pval)
705 {
706 	char			*pvalbuf;
707 	int			err;
708 	int			len;
709 	ptree_propinfo_t	pinfo;
710 	picl_prophdl_t		proph;
711 
712 	err = ptree_get_prop_by_name(nodeh, pname, &proph);
713 	if (err != PICL_SUCCESS)	/* prop doesn't exist */
714 		return (0);
715 
716 	err = ptree_get_propinfo(proph, &pinfo);
717 	if (pinfo.piclinfo.type != PICL_PTYPE_CHARSTRING)
718 		return (0);	/* not string prop */
719 
720 	len = strlen(pval) + 1;
721 
722 	pvalbuf = alloca(len);
723 	if (pvalbuf == NULL)
724 		return (0);
725 
726 	err = ptree_get_propval(proph, pvalbuf, len);
727 	if ((err == PICL_SUCCESS) && (strcmp(pvalbuf, pval) == 0))
728 		return (1);	/* prop match */
729 
730 	return (0);
731 }
732 
733 /*
734  * This function recursively searches the tree for a node that has
735  * the specified string property name and value
736  */
737 static int
738 find_node_by_string_prop(picl_nodehdl_t rooth, const char *pname,
739     const char *pval, picl_nodehdl_t *nodeh)
740 {
741 	picl_nodehdl_t		childh;
742 	int			err;
743 
744 	for (err = ptree_get_propval_by_name(rooth, PICL_PROP_CHILD, &childh,
745 	    sizeof (picl_nodehdl_t)); err != PICL_PROPNOTFOUND;
746 	    err = ptree_get_propval_by_name(childh, PICL_PROP_PEER, &childh,
747 	    sizeof (picl_nodehdl_t))) {
748 		if (err != PICL_SUCCESS)
749 			return (err);
750 
751 		if (compare_string_propval(childh, pname, pval)) {
752 			*nodeh = childh;
753 			return (PICL_SUCCESS);
754 		}
755 
756 		if (find_node_by_string_prop(childh, pname, pval, nodeh) ==
757 		    PICL_SUCCESS)
758 			return (PICL_SUCCESS);
759 	}
760 
761 	return (PICL_FAILURE);
762 }
763 
764 /*
765  * check if this is a string prop
766  * If the length is less than or equal to 4, assume it's not a string list.
767  * If there is any non-ascii or non-print char, it's not a string prop
768  * If \0 is in the first char or any two consecutive \0's exist,
769  * it's a bytearray prop.
770  * Return value: 0 means it's not a string prop, 1 means it's a string prop
771  */
772 static int
773 is_string_propval(unsigned char *pdata, int len)
774 {
775 	int	i;
776 	int	lastindex;
777 	int	prevnull = -1;
778 
779 	switch (len) {
780 	case 1:
781 		if (!isascii(pdata[0]) || !isprint(pdata[0]))
782 			return (0);
783 		return (1);
784 	case 2:
785 	case 3:
786 	case 4:
787 		lastindex = len;
788 		if (pdata[len-1] == '\0')
789 			lastindex = len - 1;
790 
791 		for (i = 0; i < lastindex; i++)
792 			if (!isascii(pdata[i]) || !isprint(pdata[i]))
793 				return (0);
794 
795 		return (1);
796 
797 	default:
798 		if (len <= 0)
799 			return (0);
800 		for (i = 0; i < len; i++) {
801 			if (!isascii(pdata[i]) || !isprint(pdata[i])) {
802 				if (pdata[i] != '\0')
803 					return (0);
804 				/*
805 				 * if the null char is in the first char
806 				 * or two consecutive nulls' exist,
807 				 * it's a bytearray prop
808 				 */
809 				if ((i == 0) || ((i - prevnull) == 1))
810 					return (0);
811 
812 				prevnull = i;
813 			}
814 		}
815 		break;
816 	}
817 
818 	return (1);
819 }
820 
821 /*
822  * This function counts the number of strings in the value buffer pdata
823  * and creates a property.
824  * If there is only one string in the buffer, pdata, a charstring property
825  * type is created and added.
826  * If there are more than one string in the buffer, pdata, then a table
827  * of charstrings is added.
828  */
829 static int
830 process_charstring_data(picl_nodehdl_t nodeh, char *pname, unsigned char *pdata,
831     int retval)
832 {
833 	int			err;
834 	int			strcount;
835 	char			*strdat;
836 	ptree_propinfo_t	propinfo;
837 
838 	/*
839 	 * append the null char at the end of string when there is
840 	 * no null terminator
841 	 */
842 	if (pdata[retval - 1] != '\0') {
843 		strdat = alloca(retval + 1);
844 		(void) memcpy(strdat, pdata, retval);
845 		strdat[retval] = '\0';
846 		retval++;
847 	} else {
848 		strdat = alloca(retval);
849 		(void) memcpy(strdat, pdata, retval);
850 	}
851 
852 	/*
853 	 * If it's a string list, create a table prop
854 	 */
855 	strcount = get_string_count(strdat, retval);
856 	if (strcount > 1) {
857 		err = add_string_list_prop(nodeh, pname,
858 		    strdat, strcount);
859 		if (err != PICL_SUCCESS)
860 			return (err);
861 	} else {
862 		err = ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
863 		    PICL_PTYPE_CHARSTRING, PICL_READ,
864 		    strlen(strdat) + 1, pname, NULL,
865 		    NULL);
866 		if (err != PICL_SUCCESS)
867 			return (err);
868 		(void) ptree_create_and_add_prop(nodeh, &propinfo,
869 		    strdat, NULL);
870 	}
871 	return (PICL_SUCCESS);
872 }
873 
874 /*
875  * Add the OBP properties as properties of the PICL node
876  */
877 static int
878 add_openprom_props(picl_nodehdl_t nodeh, di_node_t di_node)
879 {
880 	di_prom_prop_t		promp;
881 	char			*pname;
882 	unsigned char		*pdata;
883 	int			retval;
884 	ptree_propinfo_t	propinfo;
885 	int			err;
886 	picl_prop_type_t	type;
887 
888 	if (!ph)
889 		return (PICL_FAILURE);
890 
891 	for (promp = di_prom_prop_next(ph, di_node, DI_PROM_PROP_NIL);
892 	    promp != DI_PROM_PROP_NIL;
893 	    promp = di_prom_prop_next(ph, di_node, promp)) {
894 
895 		pname = di_prom_prop_name(promp);
896 
897 		retval = di_prom_prop_data(promp, &pdata);
898 		if (retval < 0) {
899 			return (PICL_SUCCESS);
900 		}
901 		if (retval == 0) {
902 			err = ptree_init_propinfo(&propinfo,
903 			    PTREE_PROPINFO_VERSION, PICL_PTYPE_VOID,
904 			    PICL_READ, (size_t)0, pname, NULL, NULL);
905 			if (err != PICL_SUCCESS) {
906 				return (err);
907 			}
908 			(void) ptree_create_and_add_prop(nodeh, &propinfo, NULL,
909 			    NULL);
910 			continue;
911 		}
912 
913 		/*
914 		 * Get the prop type from pname map table
915 		 */
916 		if (lookup_pname_type_map(pname, &type) == 0) {
917 			if (type == PICL_PTYPE_CHARSTRING) {
918 				err = process_charstring_data(nodeh, pname,
919 				    pdata, retval);
920 				if (err != PICL_SUCCESS) {
921 					return (err);
922 				}
923 				continue;
924 			}
925 
926 			err = ptree_init_propinfo(&propinfo,
927 			    PTREE_PROPINFO_VERSION, type, PICL_READ,
928 			    retval, pname, NULL, NULL);
929 			if (err != PICL_SUCCESS) {
930 				return (err);
931 			}
932 			(void) ptree_create_and_add_prop(nodeh, &propinfo,
933 			    pdata, NULL);
934 		} else if (!is_string_propval(pdata, retval)) {
935 			switch (retval) {
936 			case sizeof (uint8_t):
937 				/*FALLTHROUGH*/
938 			case sizeof (uint16_t):
939 				/*FALLTHROUGH*/
940 			case sizeof (uint32_t):
941 				type = PICL_PTYPE_UNSIGNED_INT;
942 				break;
943 			default:
944 				type = PICL_PTYPE_BYTEARRAY;
945 				break;
946 			}
947 			err = ptree_init_propinfo(&propinfo,
948 			    PTREE_PROPINFO_VERSION, type, PICL_READ,
949 			    retval, pname, NULL, NULL);
950 			if (err != PICL_SUCCESS) {
951 				return (err);
952 			}
953 			(void) ptree_create_and_add_prop(nodeh, &propinfo,
954 			    pdata, NULL);
955 		} else {
956 			err = process_charstring_data(nodeh, pname, pdata,
957 			    retval);
958 			if (err != PICL_SUCCESS) {
959 				return (err);
960 			}
961 		}
962 	}
963 
964 	return (PICL_SUCCESS);
965 }
966 
967 static void
968 add_boolean_prop(picl_nodehdl_t nodeh, ptree_propinfo_t propinfo, char *di_val)
969 {
970 	(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
971 	    PICL_PTYPE_VOID, PICL_READ, (size_t)0, di_val, NULL, NULL);
972 	(void) ptree_create_and_add_prop(nodeh, &propinfo, NULL, NULL);
973 }
974 
975 static void
976 add_uints_prop(picl_nodehdl_t nodeh, ptree_propinfo_t propinfo, char *di_val,
977     int *idata, int len)
978 {
979 	if (len == 1)
980 		(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
981 		    PICL_PTYPE_UNSIGNED_INT, PICL_READ, sizeof (int), di_val,
982 		    NULL, NULL);
983 	else
984 		(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
985 		    PICL_PTYPE_BYTEARRAY, PICL_READ, len * sizeof (int), di_val,
986 		    NULL, NULL);
987 
988 	(void) ptree_create_and_add_prop(nodeh, &propinfo, idata, NULL);
989 }
990 
991 static void
992 add_strings_prop(picl_nodehdl_t nodeh, ptree_propinfo_t propinfo, char *di_val,
993     char *sdata, int len)
994 {
995 	if (len == 1) {
996 		(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
997 		    PICL_PTYPE_CHARSTRING, PICL_READ, strlen(sdata) + 1, di_val,
998 		    NULL, NULL);
999 		(void) ptree_create_and_add_prop(nodeh, &propinfo, sdata, NULL);
1000 	} else {
1001 		(void) add_string_list_prop(nodeh, di_val, sdata, len);
1002 	}
1003 }
1004 
1005 static void
1006 add_bytes_prop(picl_nodehdl_t nodeh, ptree_propinfo_t propinfo, char *di_val,
1007     unsigned char *bdata, int len)
1008 {
1009 	(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
1010 	    PICL_PTYPE_BYTEARRAY, PICL_READ, len, di_val, NULL, NULL);
1011 	(void) ptree_create_and_add_prop(nodeh, &propinfo, bdata, NULL);
1012 }
1013 
1014 /*
1015  * Add properties provided by libdevinfo
1016  */
1017 static void
1018 add_devinfo_props(picl_nodehdl_t nodeh, di_node_t di_node)
1019 {
1020 	int			instance;
1021 	char			*di_val;
1022 	di_prop_t		di_prop;
1023 	int			di_ptype;
1024 	ptree_propinfo_t	propinfo;
1025 	char			*sdata;
1026 	unsigned char		*bdata;
1027 	int			*idata;
1028 	int			len;
1029 
1030 	instance = di_instance(di_node);
1031 	(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
1032 	    PICL_PTYPE_INT, PICL_READ, sizeof (instance), PICL_PROP_INSTANCE,
1033 	    NULL, NULL);
1034 	(void) ptree_create_and_add_prop(nodeh, &propinfo, &instance, NULL);
1035 
1036 	di_val = di_bus_addr(di_node);
1037 	if (di_val) {
1038 		(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
1039 		    PICL_PTYPE_CHARSTRING, PICL_READ, strlen(di_val) + 1,
1040 		    PICL_PROP_BUS_ADDR, NULL, NULL);
1041 		(void) ptree_create_and_add_prop(nodeh, &propinfo, di_val,
1042 		    NULL);
1043 	}
1044 
1045 	di_val = di_binding_name(di_node);
1046 	if (di_val) {
1047 		(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
1048 		    PICL_PTYPE_CHARSTRING, PICL_READ, strlen(di_val) + 1,
1049 		    PICL_PROP_BINDING_NAME, NULL, NULL);
1050 		(void) ptree_create_and_add_prop(nodeh, &propinfo, di_val,
1051 		    NULL);
1052 	}
1053 
1054 	di_val = di_driver_name(di_node);
1055 	if (di_val) {
1056 		(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
1057 		    PICL_PTYPE_CHARSTRING, PICL_READ, strlen(di_val) + 1,
1058 		    PICL_PROP_DRIVER_NAME, NULL, NULL);
1059 		(void) ptree_create_and_add_prop(nodeh, &propinfo, di_val,
1060 		    NULL);
1061 	}
1062 
1063 	di_val = di_devfs_path(di_node);
1064 	if (di_val) {
1065 		(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
1066 		    PICL_PTYPE_CHARSTRING, PICL_READ, strlen(di_val) + 1,
1067 		    PICL_PROP_DEVFS_PATH, NULL, NULL);
1068 		(void) ptree_create_and_add_prop(nodeh, &propinfo, di_val,
1069 		    NULL);
1070 		di_devfs_path_free(di_val);
1071 	}
1072 
1073 	for (di_prop = di_prop_next(di_node, DI_PROP_NIL);
1074 	    di_prop != DI_PROP_NIL;
1075 	    di_prop = di_prop_next(di_node, di_prop)) {
1076 
1077 		di_val = di_prop_name(di_prop);
1078 		di_ptype = di_prop_type(di_prop);
1079 
1080 		switch (di_ptype) {
1081 		case DI_PROP_TYPE_BOOLEAN:
1082 			add_boolean_prop(nodeh, propinfo, di_val);
1083 			break;
1084 		case DI_PROP_TYPE_INT:
1085 			len = di_prop_ints(di_prop, &idata);
1086 			if (len < 0)
1087 				/* Received error, so ignore prop */
1088 				break;
1089 			add_uints_prop(nodeh, propinfo, di_val, idata, len);
1090 			break;
1091 		case DI_PROP_TYPE_STRING:
1092 			len = di_prop_strings(di_prop, &sdata);
1093 			if (len < 0)
1094 				break;
1095 			add_strings_prop(nodeh, propinfo, di_val, sdata, len);
1096 			break;
1097 		case DI_PROP_TYPE_BYTE:
1098 			len = di_prop_bytes(di_prop, &bdata);
1099 			if (len < 0)
1100 				break;
1101 			add_bytes_prop(nodeh, propinfo, di_val, bdata, len);
1102 			break;
1103 		case DI_PROP_TYPE_UNKNOWN:
1104 			/*
1105 			 * Unknown type, we'll try and guess what it should be.
1106 			 */
1107 			len = di_prop_strings(di_prop, &sdata);
1108 			if ((len > 0) && (sdata[0] != 0)) {
1109 				add_strings_prop(nodeh, propinfo, di_val, sdata,
1110 				    len);
1111 				break;
1112 			}
1113 			len = di_prop_ints(di_prop, &idata);
1114 			if (len > 0) {
1115 				add_uints_prop(nodeh, propinfo, di_val,
1116 				    idata, len);
1117 				break;
1118 			}
1119 			len = di_prop_rawdata(di_prop, &bdata);
1120 			if (len > 0)
1121 				add_bytes_prop(nodeh, propinfo,
1122 				    di_val, bdata, len);
1123 			else if (len == 0)
1124 				add_boolean_prop(nodeh, propinfo,
1125 				    di_val);
1126 			break;
1127 		case DI_PROP_TYPE_UNDEF_IT:
1128 			break;
1129 		default:
1130 			break;
1131 		}
1132 	}
1133 }
1134 
1135 /*
1136  * This function creates the /obp node in the PICL tree for OBP nodes
1137  * without a device type class.
1138  */
1139 static int
1140 construct_picl_openprom(picl_nodehdl_t rooth, picl_nodehdl_t *obph)
1141 {
1142 	picl_nodehdl_t	tmph;
1143 	int		err;
1144 
1145 	err = ptree_create_and_add_node(rooth, PICL_NODE_OBP,
1146 	    PICL_CLASS_PICL, &tmph);
1147 
1148 	if (err != PICL_SUCCESS)
1149 		return (err);
1150 	*obph = tmph;
1151 	return (PICL_SUCCESS);
1152 }
1153 
1154 /*
1155  * This function creates the /platform node in the PICL tree and
1156  * its properties. It sets the "platform-name" property to the
1157  * platform name
1158  */
1159 static int
1160 construct_picl_platform(picl_nodehdl_t rooth, di_node_t di_root,
1161     picl_nodehdl_t *piclh)
1162 {
1163 	int			err;
1164 	picl_nodehdl_t		plafh;
1165 	char			*nodename;
1166 	char			nodeclass[PICL_CLASSNAMELEN_MAX];
1167 	ptree_propinfo_t	propinfo;
1168 	picl_prophdl_t		proph;
1169 
1170 	nodename = di_node_name(di_root);
1171 	if (nodename == NULL)
1172 		return (PICL_FAILURE);
1173 
1174 	err = 0;
1175 	if (di_nodeid(di_root) == DI_PROM_NODEID ||
1176 	    di_nodeid(di_root) == DI_SID_NODEID)
1177 		err = get_device_type(nodeclass, di_root);
1178 
1179 	if (err < 0)
1180 		(void) strcpy(nodeclass, PICL_CLASS_UPA);	/* default */
1181 
1182 	err = ptree_create_and_add_node(rooth, PICL_NODE_PLATFORM,
1183 	    nodeclass, &plafh);
1184 	if (err != PICL_SUCCESS)
1185 		return (err);
1186 
1187 	(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
1188 	    PICL_PTYPE_CHARSTRING, PICL_READ, strlen(nodename) + 1,
1189 	    PICL_PROP_PLATFORM_NAME, NULL, NULL);
1190 	err = ptree_create_and_add_prop(plafh, &propinfo, nodename, &proph);
1191 	if (err != PICL_SUCCESS)
1192 		return (err);
1193 
1194 	(void) add_devinfo_props(plafh, di_root);
1195 
1196 	(void) add_openprom_props(plafh, di_root);
1197 
1198 	*piclh = plafh;
1199 
1200 	return (PICL_SUCCESS);
1201 }
1202 
1203 /*
1204  * This function creates a node in /obp tree for the libdevinfo handle.
1205  */
1206 static int
1207 construct_obp_node(picl_nodehdl_t parh, di_node_t dn, picl_nodehdl_t *chdh)
1208 {
1209 	int		err;
1210 	char		*nodename;
1211 	char		nodeclass[PICL_CLASSNAMELEN_MAX];
1212 	picl_nodehdl_t	anodeh;
1213 
1214 	nodename = di_node_name(dn);	/* PICL_PROP_NAME */
1215 	if (nodename == NULL)
1216 		return (PICL_FAILURE);
1217 
1218 	if (strcmp(nodename, "pseudo") == 0)
1219 		return (PICL_FAILURE);
1220 
1221 	if ((di_nodeid(dn) == DI_PROM_NODEID) &&
1222 	    (get_device_type(nodeclass, dn) == 0))
1223 		return (PICL_FAILURE);
1224 
1225 	err = ptree_create_and_add_node(parh, nodename, nodename, &anodeh);
1226 	if (err != PICL_SUCCESS)
1227 		return (err);
1228 
1229 	add_devinfo_props(anodeh, dn);
1230 
1231 	(void) add_openprom_props(anodeh, dn);
1232 
1233 	*chdh = anodeh;
1234 
1235 	return (PICL_SUCCESS);
1236 }
1237 
1238 /*
1239  * This function creates a PICL node in /platform tree for a device
1240  */
1241 static int
1242 construct_devtype_node(picl_nodehdl_t parh, char *nodename,
1243     char *nodeclass, di_node_t dn, picl_nodehdl_t *chdh)
1244 {
1245 	int			err;
1246 	picl_nodehdl_t		anodeh;
1247 
1248 	err = ptree_create_and_add_node(parh, nodename, nodeclass, &anodeh);
1249 	if (err != PICL_SUCCESS)
1250 		return (err);
1251 
1252 	(void) add_devinfo_props(anodeh, dn);
1253 	(void) add_openprom_props(anodeh, dn);
1254 
1255 	*chdh = anodeh;
1256 	return (err);
1257 }
1258 
1259 /*
1260  * Create a subtree of "picl" class nodes in /obp for these nodes
1261  */
1262 static int
1263 construct_openprom_tree(picl_nodehdl_t nodeh, di_node_t  dinode)
1264 {
1265 	di_node_t	cnode;
1266 	picl_nodehdl_t	chdh;
1267 	int		err;
1268 
1269 	err = construct_obp_node(nodeh, dinode, &chdh);
1270 	if (err != PICL_SUCCESS)
1271 		return (err);
1272 
1273 	for (cnode = di_child_node(dinode); cnode != DI_NODE_NIL;
1274 	    cnode = di_sibling_node(cnode))
1275 		(void) construct_openprom_tree(chdh, cnode);
1276 
1277 	return (PICL_SUCCESS);
1278 
1279 }
1280 
1281 /*
1282  * Process the libdevinfo device tree and create nodes in /platform or /obp
1283  * PICL tree.
1284  *
1285  * This routine traverses the immediate children of "dinode" device and
1286  * determines the node class for that child. If it finds a valid class
1287  * name, then it builds a PICL node under /platform subtree and calls itself
1288  * recursively to construct the subtree for that child node. Otherwise, if
1289  * the parent_class is NULL, then it constructs a node and subtree under /obp
1290  * subtree.
1291  *
1292  * Note that we skip the children nodes that don't have a valid class name
1293  * and the parent_class is non NULL to prevent creation of any placeholder
1294  * nodes (such as sd,...).
1295  */
1296 static int
1297 construct_devinfo_tree(picl_nodehdl_t plafh, picl_nodehdl_t obph,
1298     di_node_t dinode, char *parent_class)
1299 {
1300 	di_node_t	cnode;
1301 	picl_nodehdl_t	chdh;
1302 	char		nodeclass[PICL_CLASSNAMELEN_MAX];
1303 	char		*nodename;
1304 	int		err;
1305 
1306 	err = PICL_SUCCESS;
1307 	for (cnode = di_child_node(dinode); cnode != DI_NODE_NIL;
1308 	    cnode = di_sibling_node(cnode)) {
1309 		nodename = di_node_name(cnode);	/* PICL_PROP_NAME */
1310 		if (nodename == NULL)
1311 			continue;
1312 
1313 		err = get_node_class(nodeclass, cnode, nodename);
1314 
1315 		if (err == 0) {
1316 			err = construct_devtype_node(plafh, nodename,
1317 			    nodeclass, cnode, &chdh);
1318 			if (err != PICL_SUCCESS)
1319 				return (err);
1320 			err = construct_devinfo_tree(chdh, obph, cnode,
1321 			    nodeclass);
1322 		} else if (parent_class == NULL)
1323 			err = construct_openprom_tree(obph, cnode);
1324 		else
1325 			continue;
1326 		/*
1327 		 * if parent_class is non NULL, skip the children nodes
1328 		 * that don't have a valid device class - eliminates
1329 		 * placeholder nodes (sd,...) from being created.
1330 		 */
1331 	}
1332 
1333 	return (err);
1334 
1335 }
1336 
1337 /*
1338  * This function is called from the event handler called from the daemon
1339  * on PICL events.
1340  *
1341  * This routine traverses the children of the "dinode" device and
1342  * creates a PICL node for each child not found in the PICL tree and
1343  * invokes itself recursively to create a subtree for the newly created
1344  * child node. It also checks if the node being created is a meory
1345  * controller. If so, it posts PICLEVENT_MC_ADDED PICL event to the PICL
1346  * framework.
1347  */
1348 static int
1349 update_subtree(picl_nodehdl_t nodeh, di_node_t dinode)
1350 {
1351 	di_node_t	cnode;
1352 	picl_nodehdl_t	chdh;
1353 	picl_nodehdl_t	nh;
1354 	char		*nodename;
1355 	char		nodeclass[PICL_CLASSNAMELEN_MAX];
1356 	char		*path_buf;
1357 	char		buf[MAX_UNIT_ADDRESS_LEN];
1358 	char		unitaddr[MAX_UNIT_ADDRESS_LEN];
1359 	char		path_w_ua[MAXPATHLEN];
1360 	char		path_wo_ua[MAXPATHLEN];
1361 	char		*strp;
1362 	int		gotit;
1363 	int		err;
1364 
1365 	for (cnode = di_child_node(dinode); cnode != DI_NODE_NIL;
1366 	    cnode = di_sibling_node(cnode)) {
1367 		path_buf = di_devfs_path(cnode);
1368 		if (path_buf == NULL)
1369 			continue;
1370 
1371 		nodename = di_node_name(cnode);
1372 		if (nodename == NULL) {
1373 			di_devfs_path_free(path_buf);
1374 			continue;
1375 		}
1376 
1377 		err = get_node_class(nodeclass, cnode, nodename);
1378 
1379 		if (err < 0) {
1380 			di_devfs_path_free(path_buf);
1381 			continue;
1382 		}
1383 
1384 		/*
1385 		 * this is quite complicated - both path_buf and any nodes
1386 		 * already in the picl tree may, or may not, have the
1387 		 * @<unit_addr> at the end of their names. So we must
1388 		 * take path_buf and work out what the device path would
1389 		 * be both with and without the unit_address, then search
1390 		 * the picl tree for both forms.
1391 		 */
1392 		if (((strp = strrchr(path_buf, '/')) != NULL) &&
1393 		    strchr(strp, '@') == NULL) {
1394 			/*
1395 			 * this is an unattached node - so the path is not
1396 			 * unique. Need to find out which node it is.
1397 			 * Find the unit_address from the obp properties.
1398 			 */
1399 			err = ptree_create_node(nodename, nodeclass, &chdh);
1400 			if (err != PICL_SUCCESS)
1401 				return (err);
1402 			(void) add_openprom_props(chdh, cnode);
1403 			err = get_unitaddr(nodeh, chdh, unitaddr,
1404 			    sizeof (unitaddr));
1405 			if (err != PICL_SUCCESS)
1406 				return (err);
1407 			(void) ptree_destroy_node(chdh);
1408 			(void) snprintf(path_w_ua, sizeof (path_w_ua), "%s@%s",
1409 			    path_buf, unitaddr);
1410 			(void) snprintf(path_wo_ua, sizeof (path_wo_ua), "%s",
1411 			    path_buf);
1412 		} else {
1413 			/*
1414 			 * this is an attached node - so the path is unique
1415 			 */
1416 			(void) snprintf(path_w_ua, sizeof (path_w_ua), "%s",
1417 			    path_buf);
1418 			(void) snprintf(path_wo_ua, sizeof (path_wo_ua), "%s",
1419 			    path_buf);
1420 			strp = strrchr(path_wo_ua, '@');
1421 			*strp++ = '\0';
1422 			(void) snprintf(unitaddr, sizeof (unitaddr), "%s",
1423 			    strp);
1424 		}
1425 		/*
1426 		 * first look for node with unit address in devfs_path
1427 		 */
1428 		if (ptree_find_node(nodeh, PICL_PROP_DEVFS_PATH,
1429 		    PICL_PTYPE_CHARSTRING, path_w_ua, strlen(path_w_ua) + 1,
1430 		    &nh) == PICL_SUCCESS) {
1431 			/*
1432 			 * node already there - there's nothing we need to do
1433 			 */
1434 			if (picldevtree_debug > 1)
1435 				syslog(LOG_INFO,
1436 				    "update_subtree: path:%s node exists\n",
1437 				    path_buf);
1438 			di_devfs_path_free(path_buf);
1439 			continue;
1440 		}
1441 		/*
1442 		 * now look for node without unit address in devfs_path.
1443 		 * This might be just one out of several
1444 		 * nodes - need to check all siblings
1445 		 */
1446 		err = ptree_get_propval_by_name(nodeh, PICL_PROP_CHILD,
1447 		    &chdh, sizeof (chdh));
1448 		if ((err != PICL_SUCCESS) && (err != PICL_PROPNOTFOUND))
1449 			return (err);
1450 		gotit = 0;
1451 		while (err == PICL_SUCCESS) {
1452 			err = ptree_get_propval_by_name(chdh,
1453 			    PICL_PROP_DEVFS_PATH, buf, sizeof (buf));
1454 			if (err != PICL_SUCCESS)
1455 				return (err);
1456 			if (strcmp(buf, path_wo_ua) == 0) {
1457 				err = ptree_get_propval_by_name(chdh,
1458 				    PICL_PROP_UNIT_ADDRESS, buf, sizeof (buf));
1459 				if (err != PICL_SUCCESS)
1460 					return (err);
1461 				if (strcmp(buf, unitaddr) == 0) {
1462 					gotit = 1;
1463 					break;
1464 				}
1465 			}
1466 			err = ptree_get_propval_by_name(chdh,
1467 			    PICL_PROP_PEER, &chdh, sizeof (chdh));
1468 			if (err != PICL_SUCCESS)
1469 				break;
1470 		}
1471 		if (gotit) {
1472 			/*
1473 			 * node already there - there's nothing we need to do
1474 			 */
1475 			if (picldevtree_debug > 1)
1476 				syslog(LOG_INFO,
1477 				    "update_subtree: path:%s node exists\n",
1478 				    path_buf);
1479 			di_devfs_path_free(path_buf);
1480 			continue;
1481 		}
1482 
1483 #define	IS_MC(x)	(strcmp(x, PICL_CLASS_MEMORY_CONTROLLER) == 0 ? 1 : 0)
1484 
1485 		if (construct_devtype_node(nodeh, nodename, nodeclass, cnode,
1486 		    &chdh) == PICL_SUCCESS) {
1487 			if (picldevtree_debug)
1488 				syslog(LOG_INFO,
1489 				    "picldevtree: added node:%s path:%s\n",
1490 				    nodename, path_buf);
1491 			if (IS_MC(nodeclass)) {
1492 				if (post_mc_event(PICLEVENT_MC_ADDED, chdh) !=
1493 				    PICL_SUCCESS)
1494 					syslog(LOG_WARNING, PICL_EVENT_DROPPED,
1495 					    PICLEVENT_MC_ADDED);
1496 			}
1497 
1498 			di_devfs_path_free(path_buf);
1499 			(void) update_subtree(chdh, cnode);
1500 		}
1501 	}
1502 
1503 	return (PICL_SUCCESS);
1504 
1505 }
1506 
1507 /*
1508  * Check for a stale OBP node. EINVAL is returned from the openprom(7D) driver
1509  * if the nodeid stored in the snapshot is not valid.
1510  */
1511 static int
1512 check_stale_node(di_node_t node, void *arg)
1513 {
1514 	di_prom_prop_t	promp;
1515 
1516 	errno = 0;
1517 	promp = di_prom_prop_next(ph, node, DI_PROM_PROP_NIL);
1518 	if (promp == DI_PROM_PROP_NIL && errno == EINVAL) {
1519 		snapshot_stale = 1;
1520 		return (DI_WALK_TERMINATE);
1521 	}
1522 	return (DI_WALK_CONTINUE);
1523 }
1524 
1525 /*
1526  * Walk the snapshot and check the OBP properties of each node.
1527  */
1528 static int
1529 is_snapshot_stale(di_node_t root)
1530 {
1531 	snapshot_stale = 0;
1532 	di_walk_node(root, DI_WALK_CLDFIRST, NULL, check_stale_node);
1533 	return (snapshot_stale);
1534 }
1535 
1536 /*
1537  * This function processes the data from libdevinfo and creates nodes
1538  * in the PICL tree.
1539  */
1540 static int
1541 libdevinfo_init(picl_nodehdl_t rooth)
1542 {
1543 	di_node_t	di_root;
1544 	picl_nodehdl_t	plafh;
1545 	picl_nodehdl_t	obph;
1546 	int		err;
1547 
1548 	/*
1549 	 * Use DINFOCACHE so that we obtain all attributes for all
1550 	 * device instances (without necessarily doing a load/attach
1551 	 * of all drivers).  Once the (on-disk) cache file is built, it
1552 	 * exists over a reboot and can be read into memory at a very
1553 	 * low cost.
1554 	 */
1555 	if ((di_root = di_init("/", DINFOCACHE)) == DI_NODE_NIL)
1556 		return (PICL_FAILURE);
1557 
1558 	if ((ph = di_prom_init()) == NULL)
1559 		return (PICL_FAILURE);
1560 
1561 	/*
1562 	 * Check if the snapshot cache contains stale OBP nodeid references.
1563 	 * If it does release the snapshot and obtain a live snapshot from the
1564 	 * kernel.
1565 	 */
1566 	if (is_snapshot_stale(di_root)) {
1567 		syslog(LOG_INFO, "picld detected stale snapshot cache");
1568 		di_fini(di_root);
1569 		if ((di_root = di_init("/", DINFOCPYALL | DINFOFORCE)) ==
1570 		    DI_NODE_NIL) {
1571 			return (PICL_FAILURE);
1572 		}
1573 	}
1574 
1575 	/*
1576 	 * create platform PICL node using di_root node
1577 	 */
1578 	err = construct_picl_platform(rooth, di_root, &plafh);
1579 	if (err != PICL_SUCCESS) {
1580 		di_fini(di_root);
1581 		return (PICL_FAILURE);
1582 	}
1583 
1584 	err = construct_picl_openprom(rooth, &obph);
1585 	if (err != PICL_SUCCESS) {
1586 		di_fini(di_root);
1587 		return (PICL_FAILURE);
1588 	}
1589 
1590 	(void) construct_devinfo_tree(plafh, obph, di_root, NULL);
1591 	if (ph) {
1592 		di_prom_fini(ph);
1593 		ph = NULL;
1594 	}
1595 	di_fini(di_root);
1596 	return (err);
1597 }
1598 
1599 /*
1600  * This function returns the integer property value
1601  */
1602 static int
1603 get_int_propval_by_name(picl_nodehdl_t	nodeh, char *pname, int *ival)
1604 {
1605 	int	err;
1606 
1607 	err = ptree_get_propval_by_name(nodeh, pname, ival,
1608 	    sizeof (int));
1609 
1610 	return (err);
1611 }
1612 
1613 /*
1614  * This function returns the port ID (or CPU ID in the case of CMP cores)
1615  * of the specific CPU node handle.  If upa_portid exists, return its value.
1616  * Otherwise, return portid/cpuid.
1617  */
1618 static int
1619 get_cpu_portid(picl_nodehdl_t modh, int *id)
1620 {
1621 	int	err;
1622 
1623 	if (strcmp(mach_name, "sun4u") == 0 ||
1624 	    strcmp(mach_name, "sun4v") == 0) {
1625 		err = get_int_propval_by_name(modh, OBP_PROP_UPA_PORTID, id);
1626 		if (err == PICL_SUCCESS)
1627 			return (err);
1628 		err = get_int_propval_by_name(modh, OBP_PROP_PORTID, id);
1629 		if (err == PICL_SUCCESS)
1630 			return (err);
1631 		return (get_int_propval_by_name(modh, OBP_PROP_CPUID, id));
1632 	}
1633 	if (strcmp(mach_name, "i86pc") == 0)
1634 		return (get_int_propval_by_name(modh, PICL_PROP_INSTANCE, id));
1635 
1636 	return (PICL_FAILURE);
1637 }
1638 
1639 /*
1640  * This function is the volatile read access function of CPU state
1641  * property
1642  */
1643 static int
1644 get_pi_state(ptree_rarg_t *rarg, void *vbuf)
1645 {
1646 	int	id;
1647 	int	err;
1648 
1649 	err = get_int_propval_by_name(rarg->nodeh, PICL_PROP_ID, &id);
1650 	if (err != PICL_SUCCESS)
1651 		return (err);
1652 
1653 	switch (p_online(id, P_STATUS)) {
1654 	case P_ONLINE:
1655 		(void) strlcpy(vbuf, PS_ONLINE, MAX_STATE_SIZE);
1656 		break;
1657 	case P_OFFLINE:
1658 		(void) strlcpy(vbuf, PS_OFFLINE, MAX_STATE_SIZE);
1659 		break;
1660 	case P_NOINTR:
1661 		(void) strlcpy(vbuf, PS_NOINTR, MAX_STATE_SIZE);
1662 		break;
1663 	case P_SPARE:
1664 		(void) strlcpy(vbuf, PS_SPARE, MAX_STATE_SIZE);
1665 		break;
1666 	case P_FAULTED:
1667 		(void) strlcpy(vbuf, PS_FAULTED, MAX_STATE_SIZE);
1668 		break;
1669 	case P_POWEROFF:
1670 		(void) strlcpy(vbuf, PS_POWEROFF, MAX_STATE_SIZE);
1671 		break;
1672 	default:
1673 		(void) strlcpy(vbuf, "unknown", MAX_STATE_SIZE);
1674 		break;
1675 	}
1676 	return (PICL_SUCCESS);
1677 }
1678 
1679 /*
1680  * This function is the volatile read access function of CPU processor_type
1681  * property
1682  */
1683 static int
1684 get_processor_type(ptree_rarg_t *rarg, void *vbuf)
1685 {
1686 	processor_info_t	cpu_info;
1687 	int	id;
1688 	int	err;
1689 
1690 	err = get_int_propval_by_name(rarg->nodeh, PICL_PROP_ID, &id);
1691 	if (err != PICL_SUCCESS)
1692 		return (err);
1693 
1694 	if (processor_info(id, &cpu_info) >= 0) {
1695 		(void) strlcpy(vbuf, cpu_info.pi_processor_type, PI_TYPELEN);
1696 	}
1697 	return (PICL_SUCCESS);
1698 }
1699 
1700 /*
1701  * This function is the volatile read access function of CPU fputypes
1702  * property
1703  */
1704 static int
1705 get_fputypes(ptree_rarg_t *rarg, void *vbuf)
1706 {
1707 	processor_info_t	cpu_info;
1708 	int	id;
1709 	int	err;
1710 
1711 	err = get_int_propval_by_name(rarg->nodeh, PICL_PROP_ID, &id);
1712 	if (err != PICL_SUCCESS)
1713 		return (err);
1714 
1715 	if (processor_info(id, &cpu_info) >= 0) {
1716 		(void) strlcpy(vbuf, cpu_info.pi_fputypes, PI_FPUTYPE);
1717 	}
1718 	return (PICL_SUCCESS);
1719 }
1720 
1721 /*
1722  * This function is the volatile read access function of CPU StateBegin
1723  * property. To minimize overhead, use kstat_chain_update() to refresh
1724  * the kstat header info as opposed to invoking kstat_open() every time.
1725  */
1726 static int
1727 get_pi_state_begin(ptree_rarg_t *rarg, void *vbuf)
1728 {
1729 	int 			err;
1730 	int			cpu_id;
1731 	static kstat_ctl_t	*kc = NULL;
1732 	static pthread_mutex_t	kc_mutex = PTHREAD_MUTEX_INITIALIZER;
1733 	kstat_t			*kp;
1734 	kstat_named_t		*kn;
1735 
1736 	err = get_int_propval_by_name(rarg->nodeh, PICL_PROP_ID, &cpu_id);
1737 	if (err != PICL_SUCCESS)
1738 		return (err);
1739 
1740 	(void) pthread_mutex_lock(&kc_mutex);
1741 	if (kc == NULL)
1742 		kc = kstat_open();
1743 	else if (kstat_chain_update(kc) == -1) {
1744 		(void) kstat_close(kc);
1745 		kc = kstat_open();
1746 	}
1747 
1748 	if (kc == NULL) {
1749 		(void) pthread_mutex_unlock(&kc_mutex);
1750 		return (PICL_FAILURE);
1751 	}
1752 
1753 	/* Get the state_begin from kstat */
1754 	if ((kp = kstat_lookup(kc, KSTAT_CPU_INFO, cpu_id, NULL)) == NULL ||
1755 	    kp->ks_type != KSTAT_TYPE_NAMED || kstat_read(kc, kp, 0) < 0) {
1756 		(void) pthread_mutex_unlock(&kc_mutex);
1757 		return (PICL_FAILURE);
1758 	}
1759 
1760 	kn = kstat_data_lookup(kp, KSTAT_STATE_BEGIN);
1761 	if (kn) {
1762 		*(uint64_t *)vbuf = (uint64_t)kn->value.l;
1763 		err = PICL_SUCCESS;
1764 	} else
1765 		err = PICL_FAILURE;
1766 
1767 	(void) pthread_mutex_unlock(&kc_mutex);
1768 	return (err);
1769 }
1770 
1771 /*
1772  * This function adds CPU information to the CPU nodes
1773  */
1774 /* ARGSUSED */
1775 static int
1776 add_processor_info(picl_nodehdl_t cpuh, void *args)
1777 {
1778 	int 			err;
1779 	int			cpu_id;
1780 	ptree_propinfo_t	propinfo;
1781 	ptree_propinfo_t	pinfo;
1782 
1783 	err = get_cpu_portid(cpuh, &cpu_id);
1784 	if (err != PICL_SUCCESS)
1785 		return (PICL_WALK_CONTINUE);
1786 	(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
1787 	    PICL_PTYPE_INT, PICL_READ, sizeof (int), PICL_PROP_ID, NULL, NULL);
1788 	err = ptree_create_and_add_prop(cpuh, &propinfo, &cpu_id, NULL);
1789 	if (err != PICL_SUCCESS)
1790 		return (PICL_WALK_CONTINUE);
1791 
1792 	(void) ptree_init_propinfo(&pinfo, PTREE_PROPINFO_VERSION,
1793 	    PICL_PTYPE_CHARSTRING, (PICL_READ|PICL_VOLATILE), MAX_STATE_SIZE,
1794 	    PICL_PROP_STATE, get_pi_state, NULL);
1795 	(void) ptree_create_and_add_prop(cpuh, &pinfo, NULL, NULL);
1796 
1797 	(void) ptree_init_propinfo(&pinfo, PTREE_PROPINFO_VERSION,
1798 	    PICL_PTYPE_CHARSTRING, (PICL_READ|PICL_VOLATILE), PI_TYPELEN,
1799 	    PICL_PROP_PROCESSOR_TYPE, get_processor_type, NULL);
1800 	(void) ptree_create_and_add_prop(cpuh, &pinfo, NULL, NULL);
1801 
1802 	(void) ptree_init_propinfo(&pinfo, PTREE_PROPINFO_VERSION,
1803 	    PICL_PTYPE_CHARSTRING, (PICL_READ|PICL_VOLATILE), PI_FPUTYPE,
1804 	    PICL_PROP_FPUTYPE, get_fputypes, NULL);
1805 	(void) ptree_create_and_add_prop(cpuh, &pinfo, NULL, NULL);
1806 
1807 	(void) ptree_init_propinfo(&pinfo, PTREE_PROPINFO_VERSION,
1808 	    PICL_PTYPE_TIMESTAMP, PICL_READ|PICL_VOLATILE, sizeof (uint64_t),
1809 	    PICL_PROP_STATE_BEGIN, get_pi_state_begin, NULL);
1810 	(void) ptree_create_and_add_prop(cpuh, &pinfo, NULL, NULL);
1811 
1812 	return (PICL_WALK_CONTINUE);
1813 }
1814 
1815 /*
1816  * This function sets up the "ID" property in every CPU nodes
1817  * and adds processor info
1818  */
1819 static int
1820 setup_cpus(picl_nodehdl_t plafh)
1821 {
1822 	int 			err;
1823 
1824 	err = ptree_walk_tree_by_class(plafh, PICL_CLASS_CPU, NULL,
1825 	    add_processor_info);
1826 
1827 	return (err);
1828 }
1829 
1830 /*
1831  * This function format's the manufacture's information for FFB display
1832  * devices
1833  */
1834 static void
1835 fmt_manf_id(manuf_t manufid, int bufsz, char *outbuf)
1836 {
1837 	/*
1838 	 * Format the manufacturer's info.  Note a small inconsistency we
1839 	 * have to work around - Brooktree has it's part number in decimal,
1840 	 * while Mitsubishi has it's part number in hex.
1841 	 */
1842 	switch (manufid.fld.manf) {
1843 	case MANF_BROOKTREE:
1844 		(void) snprintf(outbuf, bufsz, "%s %d, version %d",
1845 		    "Brooktree", manufid.fld.partno, manufid.fld.version);
1846 		break;
1847 
1848 	case MANF_MITSUBISHI:
1849 		(void) snprintf(outbuf, bufsz, "%s %x, version %d",
1850 		    "Mitsubishi", manufid.fld.partno, manufid.fld.version);
1851 		break;
1852 
1853 	default:
1854 		(void) snprintf(outbuf, bufsz,
1855 		    "JED code %d, Part num 0x%x, version %d",
1856 		    manufid.fld.manf, manufid.fld.partno, manufid.fld.version);
1857 	}
1858 }
1859 
1860 /*
1861  * If it's an ffb device, open ffb devices and return PICL_SUCCESS
1862  */
1863 static int
1864 open_ffb_device(picl_nodehdl_t ffbh, int *fd)
1865 {
1866 	DIR 			*dirp;
1867 	char 			devfs_path[PATH_MAX];
1868 	char 			dev_path[PATH_MAX];
1869 	char 			*devp;
1870 	struct dirent 		*direntp;
1871 	int			err;
1872 	int			tmpfd;
1873 
1874 	/* Get the devfs_path of the ffb devices */
1875 	err = ptree_get_propval_by_name(ffbh, PICL_PROP_DEVFS_PATH, devfs_path,
1876 	    sizeof (devfs_path));
1877 	if (err != PICL_SUCCESS)
1878 		return (err);
1879 
1880 	/* Get the device node name */
1881 	devp = strrchr(devfs_path, '/');
1882 	if (devp == NULL)
1883 		return (PICL_FAILURE);
1884 	*devp = '\0';
1885 	++devp;
1886 
1887 	/*
1888 	 * Check if device node name has the ffb string
1889 	 * If not, assume it's not a ffb device.
1890 	 */
1891 	if (strstr(devp, FFB_NAME) == NULL)
1892 		return (PICL_FAILURE);
1893 
1894 	/*
1895 	 * Get the parent path of the ffb device node.
1896 	 */
1897 	(void) snprintf(dev_path, sizeof (dev_path), "%s/%s", "/devices",
1898 	    devfs_path);
1899 
1900 	/*
1901 	 * Since we don't know ffb's minor nodename,
1902 	 * we need to search all the devices under its
1903 	 * parent dir by comparing the node name
1904 	 */
1905 	if ((dirp = opendir(dev_path)) == NULL)
1906 		return (PICL_FAILURE);
1907 
1908 	while ((direntp = readdir(dirp)) != NULL) {
1909 		if (strstr(direntp->d_name, devp) != NULL) {
1910 			(void) strcat(dev_path, "/");
1911 			(void) strcat(dev_path, direntp->d_name);
1912 			tmpfd = open(dev_path, O_RDWR);
1913 			if (tmpfd < 0)
1914 				continue;
1915 			*fd = tmpfd;
1916 			(void) closedir(dirp);
1917 			return (PICL_SUCCESS);
1918 		}
1919 	}
1920 
1921 	(void) closedir(dirp);
1922 	return (PICL_FAILURE);
1923 }
1924 
1925 /*
1926  * This function recursively searches the tree for ffb display devices
1927  * and add ffb config information
1928  */
1929 static int
1930 add_ffb_config_info(picl_nodehdl_t rooth)
1931 {
1932 	picl_nodehdl_t		nodeh;
1933 	int			err;
1934 	char 			piclclass[PICL_CLASSNAMELEN_MAX];
1935 	char 			manfidbuf[FFB_MANUF_BUFSIZE];
1936 	int 			fd;
1937 	int			board_rev;
1938 	ffb_sys_info_t		fsi;
1939 	ptree_propinfo_t	pinfo;
1940 
1941 	for (err = ptree_get_propval_by_name(rooth, PICL_PROP_CHILD, &nodeh,
1942 	    sizeof (picl_nodehdl_t)); err != PICL_PROPNOTFOUND;
1943 	    err = ptree_get_propval_by_name(nodeh, PICL_PROP_PEER,
1944 	    &nodeh, sizeof (picl_nodehdl_t))) {
1945 
1946 		if (err != PICL_SUCCESS)
1947 			return (err);
1948 
1949 		err = ptree_get_propval_by_name(nodeh, PICL_PROP_CLASSNAME,
1950 		    piclclass, PICL_CLASSNAMELEN_MAX);
1951 
1952 		if ((err == PICL_SUCCESS) &&
1953 		    (strcmp(piclclass, PICL_CLASS_DISPLAY) == 0)) {
1954 
1955 			err = open_ffb_device(nodeh, &fd);
1956 			if ((err == PICL_SUCCESS) &&
1957 			    (ioctl(fd, FFB_SYS_INFO, &fsi) >= 0)) {
1958 				(void) ptree_init_propinfo(&pinfo,
1959 				    PTREE_PROPINFO_VERSION,
1960 				    PICL_PTYPE_UNSIGNED_INT, PICL_READ,
1961 				    sizeof (int), PICL_PROP_FFB_BOARD_REV,
1962 				    NULL, NULL);
1963 				board_rev = fsi.ffb_strap_bits.fld.board_rev;
1964 				(void) ptree_create_and_add_prop(nodeh, &pinfo,
1965 				    &board_rev, NULL);
1966 
1967 				fmt_manf_id(fsi.dac_version,
1968 				    sizeof (manfidbuf), manfidbuf);
1969 				(void) ptree_init_propinfo(&pinfo,
1970 				    PTREE_PROPINFO_VERSION,
1971 				    PICL_PTYPE_CHARSTRING, PICL_READ,
1972 				    strlen(manfidbuf) + 1,
1973 				    PICL_PROP_FFB_DAC_VER, NULL, NULL);
1974 				(void) ptree_create_and_add_prop(nodeh, &pinfo,
1975 				    manfidbuf, NULL);
1976 
1977 				fmt_manf_id(fsi.fbram_version,
1978 				    sizeof (manfidbuf), manfidbuf);
1979 				(void) ptree_init_propinfo(&pinfo,
1980 				    PTREE_PROPINFO_VERSION,
1981 				    PICL_PTYPE_CHARSTRING, PICL_READ,
1982 				    strlen(manfidbuf) + 1,
1983 				    PICL_PROP_FFB_FBRAM_VER, NULL,
1984 				    NULL);
1985 				(void) ptree_create_and_add_prop(nodeh, &pinfo,
1986 				    manfidbuf, NULL);
1987 				(void) close(fd);
1988 			}
1989 		} else if (add_ffb_config_info(nodeh) != PICL_SUCCESS)
1990 			return (PICL_FAILURE);
1991 	}
1992 	return (PICL_SUCCESS);
1993 }
1994 
1995 static conf_entries_t *
1996 free_conf_entries(conf_entries_t *list)
1997 {
1998 	conf_entries_t	*el;
1999 	conf_entries_t	*del;
2000 
2001 	if (list == NULL)
2002 		return (NULL);
2003 	el = list;
2004 	while (el != NULL) {
2005 		del = el;
2006 		el = el->next;
2007 		free(del->name);
2008 		free(del->piclclass);
2009 		free(del);
2010 	}
2011 	return (el);
2012 }
2013 
2014 /*
2015  * Reading config order: platform, common
2016  */
2017 static conf_entries_t *
2018 read_conf_file(char *fname, conf_entries_t *list)
2019 {
2020 	FILE		*fp;
2021 	char		lbuf[CONFFILE_LINELEN_MAX];
2022 	char		*nametok;
2023 	char		*classtok;
2024 	conf_entries_t	*el;
2025 	conf_entries_t	*ptr;
2026 
2027 	if (fname == NULL)
2028 		return (list);
2029 
2030 	fp = fopen(fname, "r");
2031 
2032 	if (fp == NULL)
2033 		return (list);
2034 
2035 	while (fgets(lbuf, CONFFILE_LINELEN_MAX, fp) != NULL) {
2036 		if ((lbuf[0] == CONFFILE_COMMENT_CHAR) || (lbuf[0] == '\n'))
2037 			continue;
2038 
2039 		nametok = strtok(lbuf, " \t\n");
2040 		if (nametok == NULL)
2041 			continue;
2042 
2043 		classtok = strtok(NULL, " \t\n");
2044 		if (classtok == NULL)
2045 			continue;
2046 
2047 		el = malloc(sizeof (conf_entries_t));
2048 		if (el == NULL)
2049 			break;
2050 		el->name = strdup(nametok);
2051 		el->piclclass = strdup(classtok);
2052 		if ((el->name == NULL) || (el->piclclass == NULL)) {
2053 			free(el);
2054 			return (list);
2055 		}
2056 		el->next = NULL;
2057 
2058 		/*
2059 		 * Add it to the end of list
2060 		 */
2061 		if (list == NULL)
2062 			list = el;
2063 		else {
2064 			ptr = list;
2065 			while (ptr->next != NULL)
2066 				ptr = ptr->next;
2067 			ptr->next = el;
2068 		}
2069 
2070 	}
2071 	(void) fclose(fp);
2072 	return (list);
2073 }
2074 
2075 /*
2076  * Process the devtree conf file and set up the conf_name_class_map list
2077  */
2078 static void
2079 process_devtree_conf_file(void)
2080 {
2081 	char	nmbuf[SYS_NMLN];
2082 	char	pname[PATH_MAX];
2083 
2084 	conf_name_class_map = NULL;
2085 
2086 	if (sysinfo(SI_PLATFORM, nmbuf, sizeof (nmbuf)) != -1) {
2087 		(void) snprintf(pname, PATH_MAX, PICLD_PLAT_PLUGIN_DIRF, nmbuf);
2088 		(void) strlcat(pname, DEVTREE_CONFFILE_NAME, PATH_MAX);
2089 		conf_name_class_map = read_conf_file(pname,
2090 		    conf_name_class_map);
2091 	}
2092 
2093 	if (sysinfo(SI_MACHINE, nmbuf, sizeof (nmbuf)) != -1) {
2094 		(void) snprintf(pname, PATH_MAX, PICLD_PLAT_PLUGIN_DIRF, nmbuf);
2095 		(void) strlcat(pname, DEVTREE_CONFFILE_NAME, PATH_MAX);
2096 		conf_name_class_map = read_conf_file(pname,
2097 		    conf_name_class_map);
2098 	}
2099 
2100 	(void) snprintf(pname, PATH_MAX, "%s/%s", PICLD_COMMON_PLUGIN_DIR,
2101 	    DEVTREE_CONFFILE_NAME);
2102 	conf_name_class_map = read_conf_file(pname, conf_name_class_map);
2103 }
2104 
2105 static	asr_conf_entries_t	*conf_name_asr_map = NULL;
2106 
2107 static void
2108 free_asr_conf_entries(asr_conf_entries_t *list) {
2109 	asr_conf_entries_t  *el;
2110 	asr_conf_entries_t  *del;
2111 
2112 	el = list;
2113 	while (el != NULL) {
2114 		del = el;
2115 		el = el->next;
2116 		if (del->name)
2117 			free(del->name);
2118 		if (del->address)
2119 			free(del->address);
2120 		if (del->status)
2121 			free(del->status);
2122 		if (del->piclclass)
2123 			free(del->piclclass);
2124 		if (del->props)
2125 			free(del->props);
2126 		free(del);
2127 	}
2128 }
2129 
2130 /*
2131  * Reading config order: platform, common
2132  */
2133 static asr_conf_entries_t *
2134 read_asr_conf_file(char *fname, asr_conf_entries_t *list)
2135 {
2136 	FILE		*fp;
2137 	char		lbuf[CONFFILE_LINELEN_MAX];
2138 	char		*nametok;
2139 	char		*classtok;
2140 	char		*statustok;
2141 	char		*addresstok;
2142 	char		*propstok;
2143 	asr_conf_entries_t	*el;
2144 	asr_conf_entries_t	*ptr;
2145 
2146 	if (fname == NULL)
2147 		return (list);
2148 
2149 	fp = fopen(fname, "r");
2150 	if (fp == NULL)
2151 		return (list);
2152 
2153 	while (fgets(lbuf, CONFFILE_LINELEN_MAX, fp) != NULL) {
2154 		if ((lbuf[0] == CONFFILE_COMMENT_CHAR) || (lbuf[0] == '\n'))
2155 			continue;
2156 
2157 		nametok = strtok(lbuf, " \t\n");
2158 		if (nametok == NULL)
2159 			continue;
2160 
2161 		classtok = strtok(NULL, " \t\n");
2162 		if (classtok == NULL)
2163 			continue;
2164 
2165 		statustok = strtok(NULL, " \t\n");
2166 		if (statustok == NULL)
2167 			continue;
2168 
2169 		addresstok = strtok(NULL, " \t\n");
2170 		if (addresstok == NULL)
2171 			continue;
2172 
2173 		/*
2174 		 * props are optional
2175 		 */
2176 		propstok = strtok(NULL, " \t\n");
2177 
2178 		el = malloc(sizeof (asr_conf_entries_t));
2179 		if (el == NULL)
2180 			break;
2181 		el->name = strdup(nametok);
2182 		el->piclclass = strdup(classtok);
2183 		el->status = strdup(statustok);
2184 		el->address = strdup(addresstok);
2185 		if (propstok != NULL)
2186 			el->props = strdup(propstok);
2187 		else
2188 			el->props = NULL;
2189 		if ((el->name == NULL) || (el->piclclass == NULL) ||
2190 		    (el->address == NULL) || (el->status == NULL)) {
2191 			if (el->name)
2192 				free(el->name);
2193 			if (el->address)
2194 				free(el->address);
2195 			if (el->status)
2196 				free(el->status);
2197 			if (el->piclclass)
2198 				free(el->piclclass);
2199 			if (el->props)
2200 				free(el->props);
2201 			free(el);
2202 			break;
2203 		}
2204 		el->next = NULL;
2205 
2206 		/*
2207 		 * Add it to the end of list
2208 		 */
2209 		if (list == NULL)
2210 			list = el;
2211 		else {
2212 			ptr = list;
2213 			while (ptr->next != NULL)
2214 				ptr = ptr->next;
2215 			ptr->next = el;
2216 		}
2217 
2218 	}
2219 	(void) fclose(fp);
2220 	return (list);
2221 }
2222 
2223 /*
2224  * Process the asr conf file
2225  */
2226 static void
2227 process_asrtree_conf_file(void)
2228 {
2229 	char	nmbuf[SYS_NMLN];
2230 	char	pname[PATH_MAX];
2231 
2232 	if (sysinfo(SI_PLATFORM, nmbuf, sizeof (nmbuf)) != -1) {
2233 		(void) snprintf(pname, PATH_MAX, PICLD_PLAT_PLUGIN_DIRF, nmbuf);
2234 		(void) strlcat(pname, ASRTREE_CONFFILE_NAME, PATH_MAX);
2235 		conf_name_asr_map = read_asr_conf_file(pname,
2236 		    conf_name_asr_map);
2237 	}
2238 
2239 	if (sysinfo(SI_MACHINE, nmbuf, sizeof (nmbuf)) != -1) {
2240 		(void) snprintf(pname, PATH_MAX, PICLD_PLAT_PLUGIN_DIRF, nmbuf);
2241 		(void) strlcat(pname, ASRTREE_CONFFILE_NAME, PATH_MAX);
2242 		conf_name_asr_map = read_asr_conf_file(pname,
2243 		    conf_name_asr_map);
2244 	}
2245 
2246 	(void) snprintf(pname, PATH_MAX, "%s/%s", PICLD_COMMON_PLUGIN_DIR,
2247 	    ASRTREE_CONFFILE_NAME);
2248 	conf_name_asr_map = read_asr_conf_file(pname, conf_name_asr_map);
2249 }
2250 
2251 /*
2252  * This function reads the export file list from ASR
2253  */
2254 static int
2255 get_asr_export_list(char **exportlist, int *exportlistlen)
2256 {
2257 	struct openpromio oppbuf;
2258 	struct openpromio *opp = &oppbuf;
2259 	int d;
2260 	int listsize;
2261 
2262 	d = open("/dev/openprom", O_RDWR);
2263 	if (d < 0)
2264 		return (0);
2265 
2266 	if (ioctl(d, OPROMEXPORTLEN, opp) == -1) {
2267 		(void) close(d);
2268 		return (0);
2269 	}
2270 	listsize = opp->oprom_size;
2271 	opp = (struct openpromio *)malloc(sizeof (struct openpromio) +
2272 	    listsize);
2273 	if (opp == NULL) {
2274 		(void) close(d);
2275 		return (0);
2276 	}
2277 	(void) memset(opp, '\0', sizeof (struct openpromio) + listsize);
2278 	opp->oprom_size = listsize;
2279 	if (ioctl(d, OPROMEXPORT, opp) == -1) {
2280 		free(opp);
2281 		(void) close(d);
2282 		return (0);
2283 	}
2284 	*exportlist = malloc(listsize);
2285 	if (*exportlist == NULL) {
2286 		free(opp);
2287 		(void) close(d);
2288 		return (0);
2289 	}
2290 	(void) memcpy(*exportlist, opp->oprom_array, opp->oprom_size);
2291 	free(opp);
2292 	*exportlistlen = opp->oprom_size;
2293 	(void) close(d);
2294 	return (1);
2295 }
2296 
2297 /*
2298  * Parses properties string, fills in triplet structure with first
2299  * type, name, val triplet and returns pointer to next property.
2300  * Returns NULL if no valid triplet found
2301  * CAUTION: drops \0 characters over separator characters: if you
2302  * want to parse the string twice, you'll have to take a copy.
2303  */
2304 static char *
2305 parse_props_string(char *props, asr_prop_triplet_t *triplet)
2306 {
2307 	char	*prop_name;
2308 	char	*prop_val;
2309 	char	*prop_next;
2310 
2311 	prop_name = strchr(props, '?');
2312 	if (prop_name == NULL)
2313 		return (NULL);
2314 	*prop_name++ = '\0';
2315 	prop_val = strchr(prop_name, '=');
2316 	if (prop_val == NULL)
2317 		return (NULL);
2318 	*prop_val++ = '\0';
2319 	triplet->proptype = props;
2320 	triplet->propname = prop_name;
2321 	triplet->propval = prop_val;
2322 	prop_next = strchr(prop_val, ':');
2323 	if (prop_next == NULL)
2324 		return (prop_val - 1);
2325 	*prop_next++ = '\0';
2326 	return (prop_next);
2327 }
2328 
2329 static int
2330 add_status_prop(picl_nodehdl_t chdh, char *status)
2331 {
2332 	ptree_propinfo_t	propinfo;
2333 	picl_prophdl_t		proph;
2334 	int			err;
2335 
2336 	err = ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
2337 	    PICL_PTYPE_CHARSTRING, PICL_READ, strlen(status) + 1,
2338 	    PICL_PROP_STATUS, NULL, NULL);
2339 	if (err != PICL_SUCCESS)
2340 		return (err);
2341 	err = ptree_create_and_add_prop(chdh, &propinfo, status, &proph);
2342 	return (err);
2343 }
2344 
2345 static void
2346 create_asr_node(char *parent, char *child, char *unitaddr, char *class,
2347 	char *status, char *props)
2348 {
2349 	char			ptreepath[PATH_MAX];
2350 	char			nodename[PICL_PROPNAMELEN_MAX];
2351 	char			ua[MAX_UNIT_ADDRESS_LEN];
2352 	char			*props_copy = NULL;
2353 	char			*next;
2354 	char			*prop_string;
2355 	boolean_t		found = B_FALSE;
2356 	picl_nodehdl_t		nodeh;
2357 	picl_nodehdl_t		chdh;
2358 	asr_prop_triplet_t	triple;
2359 	ptree_propinfo_t	propinfo;
2360 	picl_prophdl_t		proph;
2361 	int			val;
2362 	int			err;
2363 
2364 	(void) strlcpy(ptreepath, PLATFORM_PATH, PATH_MAX);
2365 	(void) strlcat(ptreepath, parent, PATH_MAX);
2366 
2367 	if (ptree_get_node_by_path(ptreepath, &nodeh) != PICL_SUCCESS)
2368 		return;
2369 	/*
2370 	 * see if the required child node already exists
2371 	 */
2372 	for (err = ptree_get_propval_by_name(nodeh, PICL_PROP_CHILD, &chdh,
2373 	    sizeof (picl_nodehdl_t)); err != PICL_PROPNOTFOUND;
2374 	    err = ptree_get_propval_by_name(chdh, PICL_PROP_PEER, &chdh,
2375 	    sizeof (picl_nodehdl_t))) {
2376 		if (err != PICL_SUCCESS)
2377 			break;
2378 		err = ptree_get_propval_by_name(chdh, PICL_PROP_NAME,
2379 		    (void *)nodename, PICL_PROPNAMELEN_MAX);
2380 		if (err != PICL_SUCCESS)
2381 			break;
2382 		if (strcmp(nodename, child) != 0)
2383 			continue;
2384 		/*
2385 		 * found a candidate child node
2386 		 */
2387 		if (unitaddr) {
2388 			/*
2389 			 * does it match the required unit address?
2390 			 */
2391 			err = ptree_get_propval_by_name(chdh,
2392 			    PICL_PROP_UNIT_ADDRESS, ua, sizeof (ua));
2393 			if (err == PICL_PROPNOTFOUND)
2394 				continue;
2395 			if (err != PICL_SUCCESS)
2396 				break;
2397 			if (strcmp(unitaddr, ua) != 0)
2398 				continue;
2399 		}
2400 		if (props == NULL) {
2401 			next = "";
2402 		} else if (props_copy == NULL) {
2403 			props_copy = strdup(props);
2404 			if (props_copy == NULL)
2405 				return;
2406 			next = props_copy;
2407 		}
2408 		while ((next = parse_props_string(next, &triple)) != NULL) {
2409 			err = ptree_get_prop_by_name(chdh, triple.propname,
2410 			    &proph);
2411 			if (err != PICL_SUCCESS)
2412 				break;
2413 			err = ptree_get_propinfo(proph, &propinfo);
2414 			if (err != PICL_SUCCESS)
2415 				break;
2416 			err = PICL_FAILURE;
2417 			switch (propinfo.piclinfo.type) {
2418 			case PICL_PTYPE_INT:
2419 			case PICL_PTYPE_UNSIGNED_INT:
2420 				if (strcmp(triple.proptype, "I") != 0)
2421 					break;
2422 				err = ptree_get_propval(proph, (void  *)&val,
2423 				    sizeof (val));
2424 				if (err != PICL_SUCCESS)
2425 					break;
2426 				if (val != atoi(triple.propval))
2427 					err = PICL_FAILURE;
2428 				break;
2429 			case PICL_PTYPE_CHARSTRING:
2430 				if (strcmp(triple.proptype, "S") != 0)
2431 					break;
2432 				prop_string = malloc(propinfo.piclinfo.size);
2433 				if (prop_string == NULL)
2434 					break;
2435 				err = ptree_get_propval(proph,
2436 				    (void *)prop_string,
2437 				    propinfo.piclinfo.size);
2438 				if (err != PICL_SUCCESS) {
2439 					free(prop_string);
2440 					break;
2441 				}
2442 				if (strcmp(prop_string, triple.propval) != 0)
2443 					err = PICL_FAILURE;
2444 				free(prop_string);
2445 				break;
2446 			default:
2447 				break;
2448 			}
2449 			if (err != PICL_SUCCESS) {
2450 				break;
2451 			}
2452 		}
2453 		if (next == NULL) {
2454 			found = B_TRUE;
2455 			break;
2456 		}
2457 	}
2458 	if (props_copy)
2459 		free(props_copy);
2460 	if (found) {
2461 		/*
2462 		 * does the pre-existing node have a status property?
2463 		 */
2464 		err = ptree_get_propval_by_name(chdh, PICL_PROP_STATUS,
2465 		    ua, sizeof (ua));
2466 		if (err == PICL_PROPNOTFOUND)
2467 			(void) add_status_prop(chdh, status);
2468 		if (err != PICL_SUCCESS)
2469 			return;
2470 		if ((strcmp(ua, ASR_DISABLED) == 0) ||
2471 		    (strcmp(ua, ASR_FAILED) == 0) ||
2472 		    ((strcmp(status, ASR_DISABLED) != 0) &&
2473 		    (strcmp(status, ASR_FAILED) != 0))) {
2474 			return;
2475 		}
2476 		/*
2477 		 * more urgent status now, so replace existing value
2478 		 */
2479 		err = ptree_get_prop_by_name(chdh, PICL_PROP_STATUS, &proph);
2480 		if (err != PICL_SUCCESS)
2481 			return;
2482 		(void) ptree_delete_prop(proph);
2483 		(void) ptree_destroy_prop(proph);
2484 		err = add_status_prop(chdh, status);
2485 		if (err != PICL_SUCCESS)
2486 			return;
2487 		return;
2488 	}
2489 
2490 	/*
2491 	 * typical case, node needs adding together with a set of properties
2492 	 */
2493 	if (ptree_create_and_add_node(nodeh, child, class, &chdh) ==
2494 	    PICL_SUCCESS) {
2495 		(void) add_status_prop(chdh, status);
2496 		if (unitaddr) {
2497 			(void) ptree_init_propinfo(&propinfo,
2498 			    PTREE_PROPINFO_VERSION, PICL_PTYPE_CHARSTRING,
2499 			    PICL_READ, strlen(unitaddr) + 1,
2500 			    PICL_PROP_UNIT_ADDRESS, NULL, NULL);
2501 			(void) ptree_create_and_add_prop(chdh, &propinfo,
2502 			    unitaddr, &proph);
2503 			(void) strlcpy(ptreepath, parent, PATH_MAX);
2504 			(void) strlcat(ptreepath, "/", PATH_MAX);
2505 			(void) strlcat(ptreepath, child, PATH_MAX);
2506 			(void) strlcat(ptreepath, "@", PATH_MAX);
2507 			(void) strlcat(ptreepath, unitaddr, PATH_MAX);
2508 			(void) ptree_init_propinfo(&propinfo,
2509 			    PTREE_PROPINFO_VERSION, PICL_PTYPE_CHARSTRING,
2510 			    PICL_READ, strlen(ptreepath) + 1,
2511 			    PICL_PROP_DEVFS_PATH, NULL, NULL);
2512 			(void) ptree_create_and_add_prop(chdh, &propinfo,
2513 			    ptreepath, &proph);
2514 		}
2515 		next = props;
2516 		while ((next = parse_props_string(next, &triple)) != NULL) {
2517 			/*
2518 			 * only handle int and string properties for
2519 			 * simplicity
2520 			 */
2521 			if (strcmp(triple.proptype, "I") == 0) {
2522 				(void) ptree_init_propinfo(&propinfo,
2523 				    PTREE_PROPINFO_VERSION,
2524 				    PICL_PTYPE_INT, PICL_READ,
2525 				    sizeof (int), triple.propname, NULL, NULL);
2526 				val = atoi(triple.propval);
2527 				(void) ptree_create_and_add_prop(chdh,
2528 				    &propinfo, &val, &proph);
2529 			} else {
2530 				(void) ptree_init_propinfo(&propinfo,
2531 				    PTREE_PROPINFO_VERSION,
2532 				    PICL_PTYPE_CHARSTRING, PICL_READ,
2533 				    strlen(triple.propval) + 1,
2534 				    triple.propname, NULL, NULL);
2535 				(void) ptree_create_and_add_prop(chdh,
2536 				    &propinfo, triple.propval, &proph);
2537 			}
2538 		}
2539 	}
2540 }
2541 
2542 static void
2543 add_asr_nodes()
2544 {
2545 	char			*asrexport;
2546 	int			asrexportlen;
2547 	asr_conf_entries_t	*c = NULL;
2548 	int			i;
2549 	char			*key;
2550 	char			*child;
2551 	char			*unitaddr;
2552 	uint16_t		count;
2553 	int			disabled;
2554 
2555 	if (get_asr_export_list(&asrexport, &asrexportlen) == 0)
2556 		return;
2557 	process_asrtree_conf_file();
2558 	if (conf_name_asr_map == NULL)
2559 		return;
2560 	i = 0;
2561 	while (i < asrexportlen) {
2562 		key = &asrexport[i];
2563 		i += strlen(key) + 1;
2564 		if (i >= asrexportlen)
2565 			break;
2566 
2567 		/*
2568 		 * next byte tells us whether failed by diags or manually
2569 		 * disabled
2570 		 */
2571 		disabled = asrexport[i];
2572 		i++;
2573 		if (i >= asrexportlen)
2574 			break;
2575 
2576 		/*
2577 		 * only type 1 supported
2578 		 */
2579 		if (asrexport[i] != 1)
2580 			break;
2581 		i++;
2582 		if (i >= asrexportlen)
2583 			break;
2584 
2585 		/*
2586 		 * next two bytes give size of reason string
2587 		 */
2588 		count = (asrexport[i] << 8) | asrexport[i + 1];
2589 		i += count + 2;
2590 		if (i > asrexportlen)
2591 			break;
2592 
2593 		/*
2594 		 * now look for key in conf file info
2595 		 */
2596 		c = conf_name_asr_map;
2597 		while (c != NULL) {
2598 			if (strcmp(key, c->name) == 0) {
2599 				child = strrchr(c->address, '/');
2600 				*child++ = '\0';
2601 				unitaddr = strchr(child, '@');
2602 				if (unitaddr)
2603 					*unitaddr++ = '\0';
2604 				if (strcmp(c->status, ASR_DISABLED) == 0) {
2605 					create_asr_node(c->address, child,
2606 					    unitaddr, c->piclclass, disabled ?
2607 					    ASR_DISABLED : ASR_FAILED,
2608 					    c->props);
2609 				} else {
2610 					create_asr_node(c->address, child,
2611 					    unitaddr, c->piclclass, c->status,
2612 					    c->props);
2613 				}
2614 			}
2615 			c = c->next;
2616 		}
2617 	}
2618 
2619 	free_asr_conf_entries(conf_name_asr_map);
2620 	free(asrexport);
2621 }
2622 
2623 /*
2624  * This function adds information to the /platform node
2625  */
2626 static int
2627 add_platform_info(picl_nodehdl_t plafh)
2628 {
2629 	struct utsname		uts_info;
2630 	int			err;
2631 	ptree_propinfo_t	propinfo;
2632 	picl_prophdl_t		proph;
2633 
2634 	if (uname(&uts_info) < 0)
2635 		return (PICL_FAILURE);
2636 
2637 	(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
2638 	    PICL_PTYPE_CHARSTRING, PICL_READ, strlen(uts_info.sysname) + 1,
2639 	    PICL_PROP_SYSNAME, NULL, NULL);
2640 	err = ptree_create_and_add_prop(plafh, &propinfo, uts_info.sysname,
2641 	    &proph);
2642 	if (err != PICL_SUCCESS)
2643 		return (err);
2644 
2645 	(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
2646 	    PICL_PTYPE_CHARSTRING, PICL_READ, strlen(uts_info.nodename) + 1,
2647 	    PICL_PROP_NODENAME, NULL, NULL);
2648 	err = ptree_create_and_add_prop(plafh, &propinfo, uts_info.nodename,
2649 	    &proph);
2650 	if (err != PICL_SUCCESS)
2651 		return (err);
2652 
2653 	(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
2654 	    PICL_PTYPE_CHARSTRING, PICL_READ, strlen(uts_info.release) + 1,
2655 	    PICL_PROP_RELEASE, NULL, NULL);
2656 	err = ptree_create_and_add_prop(plafh, &propinfo, uts_info.release,
2657 	    &proph);
2658 	if (err != PICL_SUCCESS)
2659 		return (err);
2660 
2661 	(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
2662 	    PICL_PTYPE_CHARSTRING, PICL_READ, strlen(uts_info.version) + 1,
2663 	    PICL_PROP_VERSION, NULL, NULL);
2664 	err = ptree_create_and_add_prop(plafh, &propinfo, uts_info.version,
2665 	    &proph);
2666 	if (err != PICL_SUCCESS)
2667 		return (err);
2668 
2669 	(void) ptree_init_propinfo(&propinfo, PTREE_PROPINFO_VERSION,
2670 	    PICL_PTYPE_CHARSTRING, PICL_READ, strlen(uts_info.machine) + 1,
2671 	    PICL_PROP_MACHINE, NULL, NULL);
2672 	err = ptree_create_and_add_prop(plafh, &propinfo, uts_info.machine,
2673 	    &proph);
2674 	return (err);
2675 }
2676 
2677 /*
2678  * Get first 32-bit value from the reg property
2679  */
2680 static int
2681 get_first_reg_word(picl_nodehdl_t nodeh, uint32_t *regval)
2682 {
2683 	int			err;
2684 	uint32_t		*regbuf;
2685 	picl_prophdl_t  	regh;
2686 	ptree_propinfo_t	pinfo;
2687 
2688 	err = ptree_get_prop_by_name(nodeh, OBP_REG, &regh);
2689 	if (err != PICL_SUCCESS) 	/* no reg property */
2690 		return (err);
2691 	err = ptree_get_propinfo(regh, &pinfo);
2692 	if (err != PICL_SUCCESS)
2693 		return (err);
2694 	if (pinfo.piclinfo.size < sizeof (uint32_t)) /* too small */
2695 		return (PICL_FAILURE);
2696 	regbuf = alloca(pinfo.piclinfo.size);
2697 	if (regbuf == NULL)
2698 		return (PICL_FAILURE);
2699 	err = ptree_get_propval(regh, regbuf, pinfo.piclinfo.size);
2700 	if (err != PICL_SUCCESS)
2701 		return (err);
2702 	*regval = *regbuf;	/* get first 32-bit value */
2703 	return (PICL_SUCCESS);
2704 }
2705 
2706 /*
2707  * Get device ID from the reg property
2708  */
2709 static int
2710 get_device_id(picl_nodehdl_t nodeh, uint32_t *dev_id)
2711 {
2712 	int			err;
2713 	uint32_t		regval;
2714 
2715 	err = get_first_reg_word(nodeh, &regval);
2716 	if (err != PICL_SUCCESS)
2717 		return (err);
2718 
2719 	*dev_id = PCI_DEVICE_ID(regval);
2720 	return (PICL_SUCCESS);
2721 }
2722 
2723 /*
2724  * add Slot property for children of SBUS node
2725  */
2726 /* ARGSUSED */
2727 static int
2728 add_sbus_slots(picl_nodehdl_t pcih, void *args)
2729 {
2730 	picl_nodehdl_t		nodeh;
2731 	uint32_t		slot;
2732 	int			err;
2733 	ptree_propinfo_t	pinfo;
2734 
2735 	for (err = ptree_get_propval_by_name(pcih, PICL_PROP_CHILD, &nodeh,
2736 	    sizeof (picl_nodehdl_t)); err != PICL_PROPNOTFOUND;
2737 	    err = ptree_get_propval_by_name(nodeh, PICL_PROP_PEER, &nodeh,
2738 	    sizeof (picl_nodehdl_t))) {
2739 		if (err != PICL_SUCCESS)
2740 			return (err);
2741 
2742 		if (get_first_reg_word(nodeh, &slot) != 0)
2743 			continue;
2744 		(void) ptree_init_propinfo(&pinfo, PTREE_PROPINFO_VERSION,
2745 		    PICL_PTYPE_UNSIGNED_INT, PICL_READ, sizeof (uint32_t),
2746 		    PICL_PROP_SLOT, NULL, NULL);
2747 		(void) ptree_create_and_add_prop(nodeh, &pinfo, &slot, NULL);
2748 	}
2749 
2750 	return (PICL_WALK_CONTINUE);
2751 }
2752 
2753 /*
2754  * This function creates a Slot property for SBUS child nodes
2755  * which can be correlated with the slot they are plugged into
2756  * on the motherboard.
2757  */
2758 static int
2759 set_sbus_slot(picl_nodehdl_t plafh)
2760 {
2761 	int		err;
2762 
2763 	err = ptree_walk_tree_by_class(plafh, PICL_CLASS_SBUS, NULL,
2764 	    add_sbus_slots);
2765 
2766 	return (err);
2767 }
2768 
2769 /*
2770  * add DeviceID property for children of PCI/PCIEX node
2771  */
2772 /* ARGSUSED */
2773 static int
2774 add_pci_deviceids(picl_nodehdl_t pcih, void *args)
2775 {
2776 	picl_nodehdl_t		nodeh;
2777 	uint32_t		dev_id;
2778 	int			err;
2779 	ptree_propinfo_t	pinfo;
2780 
2781 	for (err = ptree_get_propval_by_name(pcih, PICL_PROP_CHILD, &nodeh,
2782 	    sizeof (picl_nodehdl_t)); err != PICL_PROPNOTFOUND;
2783 	    err = ptree_get_propval_by_name(nodeh, PICL_PROP_PEER, &nodeh,
2784 	    sizeof (picl_nodehdl_t))) {
2785 		if (err != PICL_SUCCESS)
2786 			return (err);
2787 
2788 		if (get_device_id(nodeh, &dev_id) != 0)
2789 			continue;
2790 		(void) ptree_init_propinfo(&pinfo, PTREE_PROPINFO_VERSION,
2791 		    PICL_PTYPE_UNSIGNED_INT, PICL_READ, sizeof (uint32_t),
2792 		    PICL_PROP_DEVICE_ID, NULL, NULL);
2793 		(void) ptree_create_and_add_prop(nodeh, &pinfo, &dev_id, NULL);
2794 	}
2795 
2796 	return (PICL_WALK_CONTINUE);
2797 }
2798 
2799 /*
2800  * This function creates a DeviceID property for PCI/PCIEX child nodes
2801  * which can be correlated with the slot they are plugged into
2802  * on the motherboard.
2803  */
2804 static void
2805 set_pci_pciex_deviceid(picl_nodehdl_t plafh)
2806 {
2807 	(void) ptree_walk_tree_by_class(plafh, PICL_CLASS_PCI, NULL,
2808 	    add_pci_deviceids);
2809 
2810 	(void) ptree_walk_tree_by_class(plafh, PICL_CLASS_PCIEX, NULL,
2811 	    add_pci_deviceids);
2812 }
2813 
2814 /*
2815  * Default UnitAddress encode function
2816  */
2817 static int
2818 encode_default_unitaddr(char *buf, int sz, uint32_t *regprop, uint_t addrcells)
2819 {
2820 	int	i, len;
2821 
2822 	/*
2823 	 * Encode UnitAddress as %a,%b,%c,...,%n
2824 	 */
2825 	if (addrcells < 1)
2826 		return (-1);
2827 
2828 	len = snprintf(buf, sz, "%x", *regprop);
2829 	for (i = 1; i < addrcells && len < sz; i++)
2830 		len += snprintf(&buf[len], sz-len, ",%x", regprop[i]);
2831 
2832 	return ((len >= sz) ? -1 : 0);
2833 }
2834 
2835 /*
2836  * UnitAddress encode function where the last component is not printed
2837  * unless non-zero.
2838  */
2839 static int
2840 encode_optional_unitaddr(char *buf, int sz, uint32_t *regprop, uint_t addrcells)
2841 {
2842 	int	retval;
2843 
2844 	/*
2845 	 * Encode UnitAddress as %a,%b,%c,...,%n where the last component
2846 	 * is printed only if non-zero.
2847 	 */
2848 	if (addrcells > 1 && regprop[addrcells-1] == 0)
2849 		retval = encode_default_unitaddr(buf, sz, regprop, addrcells-1);
2850 	else
2851 		retval = encode_default_unitaddr(buf, sz, regprop, addrcells);
2852 
2853 	return (retval);
2854 }
2855 
2856 
2857 /*
2858  * UnitAddress encode function for SCSI class of devices
2859  */
2860 static int
2861 encode_scsi_unitaddr(char *buf, int sz, uint32_t *regprop, uint_t addrcells)
2862 {
2863 	int	len, retval;
2864 
2865 	/*
2866 	 * #address-cells	Format
2867 	 *	2		second component printed only if non-zero
2868 	 *
2869 	 *	4		regprop:   phys_hi phys_lo lun_hi lun_lo
2870 	 *			UnitAddr:  w<phys_hi><phys_lo>,<lun_lo>
2871 	 */
2872 
2873 	if (addrcells == 2) {
2874 		retval = encode_optional_unitaddr(buf, sz, regprop, addrcells);
2875 	} else if (addrcells == 4) {
2876 		len = snprintf(buf, sz, "w%08x%08x,%x", regprop[0], regprop[1],
2877 		    regprop[3]);
2878 		retval = (len >= sz) ? -1 : 0;
2879 	} else
2880 		retval = -1;
2881 
2882 	return (retval);
2883 }
2884 
2885 /*
2886  * UnitAddress encode function for UPA devices
2887  */
2888 static int
2889 encode_upa_unitaddr(char *buf, int sz, uint32_t *regprop, uint_t addrcells)
2890 {
2891 	int	len;
2892 
2893 	if (addrcells != 2)
2894 		return (-1);
2895 
2896 	len = snprintf(buf, sz, "%x,%x", (regprop[0]/2)&0x1f, regprop[1]);
2897 	return ((len >= sz) ? -1 : 0);
2898 }
2899 
2900 /*
2901  * UnitAddress encode function for GPTWO, JBUS devices
2902  */
2903 static int
2904 encode_gptwo_jbus_unitaddr(char *buf, int sz, uint32_t *regprop,
2905     uint_t addrcells)
2906 {
2907 	uint32_t	hi, lo;
2908 	int		len, id, off;
2909 
2910 	if (addrcells != 2)
2911 		return (-1);
2912 
2913 	hi = regprop[0];
2914 	lo = regprop[1];
2915 
2916 	if (hi & 0x400) {
2917 		id = ((hi & 0x1) << 9) | (lo >> 23);	/* agent id */
2918 		off = lo & 0x7fffff;			/* config offset */
2919 		len = snprintf(buf, sz, "%x,%x", id, off);
2920 	} else {
2921 		len = snprintf(buf, sz, "m%x,%x", hi, lo);
2922 	}
2923 	return ((len >= sz) ? -1 : 0);
2924 }
2925 
2926 /*
2927  * UnitAddress encode function for PCI devices
2928  */
2929 static int
2930 encode_pci_unitaddr(char *buf, int sz, uint32_t *regprop, uint_t addrcells)
2931 {
2932 	typedef struct {
2933 		uint32_t	n:1,		/* relocatable */
2934 				p:1,		/* prefetchable */
2935 				t:1,		/* address region aliases */
2936 				zero:3,		/* must be zero */
2937 				ss:2,		/* address space type */
2938 				bus:8,		/* bus number */
2939 				dev:5,		/* device number */
2940 				fn:3,		/* function number */
2941 				reg:8;		/* register number */
2942 		uint32_t	phys_hi;	/* high physical address */
2943 		uint32_t	phys_lo;	/* low physical address */
2944 	} pci_addrcell_t;
2945 
2946 	pci_addrcell_t	*p;
2947 	int		len;
2948 
2949 	if (addrcells != 3)
2950 		return (-1);
2951 
2952 	p = (pci_addrcell_t *)regprop;
2953 	switch (p->ss) {
2954 	case 0:		/* Config */
2955 		if (p->fn)
2956 			len = snprintf(buf, sz, "%x,%x", p->dev, p->fn);
2957 		else
2958 			len = snprintf(buf, sz, "%x", p->dev);
2959 		break;
2960 	case 1:		/* IO */
2961 		len = snprintf(buf, sz, "i%x,%x,%x,%x", p->dev, p->fn, p->reg,
2962 		    p->phys_lo);
2963 		break;
2964 	case 2:		/* Mem32 */
2965 		len = snprintf(buf, sz, "m%x,%x,%x,%x", p->dev, p->fn, p->reg,
2966 		    p->phys_lo);
2967 		break;
2968 	case 3:		/* Mem64 */
2969 		len = snprintf(buf, sz, "x%x,%x,%x,%x%08x", p->dev, p->fn,
2970 		    p->reg, p->phys_hi, p->phys_lo);
2971 		break;
2972 	}
2973 	return ((len >= sz) ? -1 : 0);
2974 }
2975 
2976 /*
2977  * Get #address-cells property value
2978  */
2979 static uint_t
2980 get_addrcells_prop(picl_nodehdl_t nodeh)
2981 {
2982 	int			len, err;
2983 	uint32_t		addrcells;
2984 	ptree_propinfo_t	pinfo;
2985 	picl_prophdl_t		proph;
2986 
2987 	/*
2988 	 * Get #address-cells property.  If not present, use default value.
2989 	 */
2990 	err = ptree_get_prop_by_name(nodeh, OBP_PROP_ADDRESS_CELLS, &proph);
2991 	if (err == PICL_SUCCESS)
2992 		err = ptree_get_propinfo(proph, &pinfo);
2993 
2994 	len = pinfo.piclinfo.size;
2995 	if (err == PICL_SUCCESS && len >= sizeof (uint8_t) &&
2996 	    len <= sizeof (addrcells)) {
2997 		err = ptree_get_propval(proph, &addrcells, len);
2998 		if (err == PICL_SUCCESS) {
2999 			if (len == sizeof (uint8_t))
3000 				addrcells = *(uint8_t *)&addrcells;
3001 			else if (len == sizeof (uint16_t))
3002 				addrcells = *(uint16_t *)&addrcells;
3003 		} else
3004 			addrcells = DEFAULT_ADDRESS_CELLS;
3005 	} else
3006 		addrcells = DEFAULT_ADDRESS_CELLS;
3007 
3008 	return (addrcells);
3009 }
3010 
3011 /*
3012  * Get UnitAddress mapping entry for a node
3013  */
3014 static unitaddr_map_t *
3015 get_unitaddr_mapping(picl_nodehdl_t nodeh)
3016 {
3017 	int		err;
3018 	unitaddr_map_t	*uamap;
3019 	char		clname[PICL_CLASSNAMELEN_MAX];
3020 
3021 	/*
3022 	 * Get my classname and locate a function to translate "reg" prop
3023 	 * into "UnitAddress" prop for my children.
3024 	 */
3025 	err = ptree_get_propval_by_name(nodeh, PICL_PROP_CLASSNAME, clname,
3026 	    sizeof (clname));
3027 	if (err != PICL_SUCCESS)
3028 		(void) strcpy(clname, "");	/* NULL class name */
3029 
3030 	for (uamap = &unitaddr_map_table[0]; uamap->class != NULL; uamap++)
3031 		if (strcmp(clname, uamap->class) == 0)
3032 			break;
3033 
3034 	return (uamap);
3035 }
3036 
3037 /*
3038  * Add UnitAddress property to the specified node
3039  */
3040 static int
3041 add_unitaddr_prop(picl_nodehdl_t nodeh, unitaddr_map_t *uamap, uint_t addrcells)
3042 {
3043 	int			regproplen, err;
3044 	uint32_t		*regbuf;
3045 	picl_prophdl_t		regh;
3046 	ptree_propinfo_t	pinfo;
3047 	char			unitaddr[MAX_UNIT_ADDRESS_LEN];
3048 
3049 	err = ptree_get_prop_by_name(nodeh, OBP_REG, &regh);
3050 	if (err != PICL_SUCCESS)
3051 		return (err);
3052 
3053 	err = ptree_get_propinfo(regh, &pinfo);
3054 	if (err != PICL_SUCCESS)
3055 		return (PICL_FAILURE);
3056 
3057 	if (pinfo.piclinfo.size < (addrcells * sizeof (uint32_t)))
3058 		return (PICL_FAILURE);
3059 
3060 	regproplen = pinfo.piclinfo.size;
3061 	regbuf = alloca(regproplen);
3062 	if (regbuf == NULL)
3063 		return (PICL_FAILURE);
3064 
3065 	err = ptree_get_propval(regh, regbuf, regproplen);
3066 	if (err != PICL_SUCCESS || uamap->func == NULL ||
3067 	    (uamap->addrcellcnt && uamap->addrcellcnt != addrcells) ||
3068 	    (uamap->func)(unitaddr, sizeof (unitaddr), regbuf,
3069 	    addrcells) != 0) {
3070 		return (PICL_FAILURE);
3071 	}
3072 
3073 	err = ptree_init_propinfo(&pinfo, PTREE_PROPINFO_VERSION,
3074 	    PICL_PTYPE_CHARSTRING, PICL_READ, strlen(unitaddr)+1,
3075 	    PICL_PROP_UNIT_ADDRESS, NULL, NULL);
3076 	if (err == PICL_SUCCESS)
3077 		err = ptree_create_and_add_prop(nodeh, &pinfo, unitaddr, NULL);
3078 
3079 	return (err);
3080 }
3081 
3082 /*
3083  * work out UnitAddress property of the specified node
3084  */
3085 static int
3086 get_unitaddr(picl_nodehdl_t parh, picl_nodehdl_t nodeh, char *unitaddr,
3087     size_t ualen)
3088 {
3089 	int			regproplen, err;
3090 	uint32_t		*regbuf;
3091 	picl_prophdl_t		regh;
3092 	ptree_propinfo_t	pinfo;
3093 	unitaddr_map_t		*uamap;
3094 	uint32_t		addrcells;
3095 
3096 	addrcells = get_addrcells_prop(parh);
3097 	uamap = get_unitaddr_mapping(parh);
3098 
3099 	err = ptree_get_prop_by_name(nodeh, OBP_REG, &regh);
3100 	if (err != PICL_SUCCESS)
3101 		return (err);
3102 
3103 	err = ptree_get_propinfo(regh, &pinfo);
3104 	if (err != PICL_SUCCESS)
3105 		return (err);
3106 
3107 	if (pinfo.piclinfo.size < (addrcells * sizeof (uint32_t)))
3108 		return (PICL_FAILURE);
3109 
3110 	regproplen = pinfo.piclinfo.size;
3111 	regbuf = alloca(regproplen);
3112 	if (regbuf == NULL)
3113 		return (PICL_FAILURE);
3114 
3115 	err = ptree_get_propval(regh, regbuf, regproplen);
3116 	if (err != PICL_SUCCESS || uamap->func == NULL ||
3117 	    (uamap->addrcellcnt && uamap->addrcellcnt != addrcells) ||
3118 	    (uamap->func)(unitaddr, ualen, regbuf, addrcells) != 0) {
3119 		return (PICL_FAILURE);
3120 	}
3121 	return (PICL_SUCCESS);
3122 }
3123 
3124 /*
3125  * Add UnitAddress property to all children of the specified node
3126  */
3127 static int
3128 add_unitaddr_prop_to_subtree(picl_nodehdl_t nodeh)
3129 {
3130 	int			err;
3131 	picl_nodehdl_t		chdh;
3132 	unitaddr_map_t		*uamap;
3133 	uint32_t		addrcells;
3134 
3135 	/*
3136 	 * Get #address-cells and unit address mapping entry for my
3137 	 * node's class
3138 	 */
3139 	addrcells = get_addrcells_prop(nodeh);
3140 	uamap = get_unitaddr_mapping(nodeh);
3141 
3142 	/*
3143 	 * Add UnitAddress property to my children and their subtree
3144 	 */
3145 	err = ptree_get_propval_by_name(nodeh, PICL_PROP_CHILD, &chdh,
3146 	    sizeof (picl_nodehdl_t));
3147 
3148 	while (err == PICL_SUCCESS) {
3149 		(void) add_unitaddr_prop(chdh, uamap, addrcells);
3150 		(void) add_unitaddr_prop_to_subtree(chdh);
3151 
3152 		err = ptree_get_propval_by_name(chdh, PICL_PROP_PEER, &chdh,
3153 		    sizeof (picl_nodehdl_t));
3154 	}
3155 
3156 	return (PICL_SUCCESS);
3157 }
3158 
3159 static int
3160 update_memory_size_prop(picl_nodehdl_t plafh)
3161 {
3162 	picl_nodehdl_t		memh;
3163 	picl_prophdl_t		proph;
3164 	ptree_propinfo_t	pinfo;
3165 	int			err, nspecs, snum, pval;
3166 	char			*regbuf;
3167 	memspecs_t		*mspecs;
3168 	uint64_t		memsize;
3169 
3170 	/*
3171 	 * check if the #size-cells of the platform node is 2
3172 	 */
3173 	err = ptree_get_propval_by_name(plafh, OBP_PROP_SIZE_CELLS, &pval,
3174 	    sizeof (pval));
3175 
3176 	if (err == PICL_PROPNOTFOUND)
3177 		pval = SUPPORTED_NUM_CELL_SIZE;
3178 	else if (err != PICL_SUCCESS)
3179 		return (err);
3180 
3181 	/*
3182 	 * don't know how to handle other vals
3183 	 */
3184 	if (pval != SUPPORTED_NUM_CELL_SIZE)
3185 		return (PICL_FAILURE);
3186 
3187 	err = ptree_get_node_by_path(MEMORY_PATH, &memh);
3188 	if (err != PICL_SUCCESS)
3189 		return (err);
3190 
3191 	/*
3192 	 * Get the REG property to calculate the size of memory
3193 	 */
3194 	err = ptree_get_prop_by_name(memh, OBP_REG, &proph);
3195 	if (err != PICL_SUCCESS)
3196 		return (err);
3197 
3198 	err = ptree_get_propinfo(proph, &pinfo);
3199 	if (err != PICL_SUCCESS)
3200 		return (err);
3201 
3202 	regbuf = alloca(pinfo.piclinfo.size);
3203 	if (regbuf == NULL)
3204 		return (PICL_FAILURE);
3205 
3206 	err = ptree_get_propval(proph, regbuf, pinfo.piclinfo.size);
3207 	if (err != PICL_SUCCESS)
3208 		return (err);
3209 
3210 	mspecs = (memspecs_t *)regbuf;
3211 	nspecs = pinfo.piclinfo.size / sizeof (memspecs_t);
3212 
3213 	memsize = 0;
3214 	for (snum = 0; snum < nspecs; ++snum)
3215 		memsize += mspecs[snum].size;
3216 
3217 	err = ptree_get_prop_by_name(memh, PICL_PROP_SIZE, &proph);
3218 	if (err == PICL_SUCCESS) {
3219 		err = ptree_update_propval(proph, &memsize, sizeof (memsize));
3220 		return (err);
3221 	}
3222 
3223 	/*
3224 	 * Add the size property
3225 	 */
3226 	(void) ptree_init_propinfo(&pinfo, PTREE_PROPINFO_VERSION,
3227 	    PICL_PTYPE_UNSIGNED_INT, PICL_READ, sizeof (memsize),
3228 	    PICL_PROP_SIZE, NULL, NULL);
3229 	err = ptree_create_and_add_prop(memh, &pinfo, &memsize, NULL);
3230 	return (err);
3231 }
3232 
3233 /*
3234  * This function is executed as part of .init when the plugin is
3235  * dlopen()ed
3236  */
3237 static void
3238 picldevtree_register(void)
3239 {
3240 	if (getenv(SUNW_PICLDEVTREE_PLUGIN_DEBUG))
3241 		picldevtree_debug = 1;
3242 	(void) picld_plugin_register(&my_reg_info);
3243 }
3244 
3245 /*
3246  * This function is the init entry point of the plugin.
3247  * It initializes the /platform tree based on libdevinfo
3248  */
3249 static void
3250 picldevtree_init(void)
3251 {
3252 	picl_nodehdl_t	rhdl;
3253 	int		err;
3254 	struct utsname	utsname;
3255 	picl_nodehdl_t	plafh;
3256 
3257 	if (uname(&utsname) < 0)
3258 		return;
3259 
3260 	(void) strcpy(mach_name, utsname.machine);
3261 
3262 	if (strcmp(mach_name, "sun4u") == 0) {
3263 		builtin_map_ptr = sun4u_map;
3264 		builtin_map_size = sizeof (sun4u_map) / sizeof (builtin_map_t);
3265 	} else if (strcmp(mach_name, "sun4v") == 0) {
3266 		builtin_map_ptr = sun4u_map;
3267 		builtin_map_size = sizeof (sun4u_map) / sizeof (builtin_map_t);
3268 	} else if (strcmp(mach_name, "i86pc") == 0) {
3269 		builtin_map_ptr = i86pc_map;
3270 		builtin_map_size = sizeof (i86pc_map) / sizeof (builtin_map_t);
3271 	} else {
3272 		builtin_map_ptr = NULL;
3273 		builtin_map_size = 0;
3274 	}
3275 
3276 	err = ptree_get_root(&rhdl);
3277 	if (err != PICL_SUCCESS) {
3278 		syslog(LOG_ERR, DEVINFO_PLUGIN_INIT_FAILED);
3279 		return;
3280 	}
3281 
3282 	process_devtree_conf_file();
3283 
3284 	if (libdevinfo_init(rhdl) != PICL_SUCCESS) {
3285 		syslog(LOG_ERR, DEVINFO_PLUGIN_INIT_FAILED);
3286 		return;
3287 	}
3288 
3289 	err = ptree_get_node_by_path(PLATFORM_PATH, &plafh);
3290 	if (err != PICL_SUCCESS)
3291 		return;
3292 
3293 	(void) add_unitaddr_prop_to_subtree(plafh);
3294 
3295 	add_asr_nodes();
3296 
3297 	(void) update_memory_size_prop(plafh);
3298 
3299 	(void) setup_cpus(plafh);
3300 
3301 	(void) add_ffb_config_info(plafh);
3302 
3303 	(void) add_platform_info(plafh);
3304 
3305 	set_pci_pciex_deviceid(plafh);
3306 
3307 	(void) set_sbus_slot(plafh);
3308 
3309 	(void) ptree_register_handler(PICLEVENT_SYSEVENT_DEVICE_ADDED,
3310 	    picldevtree_evhandler, NULL);
3311 	(void) ptree_register_handler(PICLEVENT_SYSEVENT_DEVICE_REMOVED,
3312 	    picldevtree_evhandler, NULL);
3313 	(void) ptree_register_handler(PICLEVENT_CPU_STATE_CHANGE,
3314 	    picldevtree_evhandler, NULL);
3315 }
3316 
3317 /*
3318  * This function is the fini entry point of the plugin
3319  */
3320 static void
3321 picldevtree_fini(void)
3322 {
3323 	/* First unregister the event handlers */
3324 	(void) ptree_unregister_handler(PICLEVENT_SYSEVENT_DEVICE_ADDED,
3325 	    picldevtree_evhandler, NULL);
3326 	(void) ptree_unregister_handler(PICLEVENT_SYSEVENT_DEVICE_REMOVED,
3327 	    picldevtree_evhandler, NULL);
3328 	(void) ptree_unregister_handler(PICLEVENT_CPU_STATE_CHANGE,
3329 	    picldevtree_evhandler, NULL);
3330 
3331 	conf_name_class_map = free_conf_entries(conf_name_class_map);
3332 }
3333 
3334 /*
3335  * This function is the event handler of this plug-in.
3336  *
3337  * It processes the following events:
3338  *
3339  *	PICLEVENT_SYSEVENT_DEVICE_ADDED
3340  *	PICLEVENT_SYSEVENT_DEVICE_REMOVED
3341  *	PICLEVENT_CPU_STATE_CHANGE
3342  */
3343 /* ARGSUSED */
3344 static void
3345 picldevtree_evhandler(const char *ename, const void *earg, size_t size,
3346     void *cookie)
3347 {
3348 	char			*devfs_path;
3349 	char			ptreepath[PATH_MAX];
3350 	char			dipath[PATH_MAX];
3351 	picl_nodehdl_t		plafh;
3352 	picl_nodehdl_t		nodeh;
3353 	nvlist_t		*nvlp;
3354 
3355 	if (earg == NULL)
3356 		return;
3357 
3358 	nvlp = NULL;
3359 	if (ptree_get_node_by_path(PLATFORM_PATH, &plafh) != PICL_SUCCESS ||
3360 	    nvlist_unpack((char *)earg, size, &nvlp, NULL) ||
3361 	    nvlist_lookup_string(nvlp, PICLEVENTARG_DEVFS_PATH, &devfs_path) ||
3362 	    strlen(devfs_path) > (PATH_MAX - sizeof (PLATFORM_PATH))) {
3363 		syslog(LOG_INFO, PICL_EVENT_DROPPED, ename);
3364 		if (nvlp)
3365 			nvlist_free(nvlp);
3366 		return;
3367 	}
3368 
3369 	(void) strlcpy(ptreepath, PLATFORM_PATH, PATH_MAX);
3370 	(void) strlcat(ptreepath, devfs_path, PATH_MAX);
3371 	(void) strlcpy(dipath, devfs_path, PATH_MAX);
3372 	nvlist_free(nvlp);
3373 
3374 	if (picldevtree_debug)
3375 		syslog(LOG_INFO, "picldevtree: event handler invoked ename:%s "
3376 		    "ptreepath:%s\n", ename, ptreepath);
3377 
3378 	if (strcmp(ename, PICLEVENT_CPU_STATE_CHANGE) == 0) {
3379 		goto done;
3380 	}
3381 	if (strcmp(ename, PICLEVENT_SYSEVENT_DEVICE_ADDED) == 0) {
3382 		di_node_t		devnode;
3383 		char		*strp;
3384 		picl_nodehdl_t	parh;
3385 		char		nodeclass[PICL_CLASSNAMELEN_MAX];
3386 		char		*nodename;
3387 		int		err;
3388 
3389 		/* If the node already exist, then nothing else to do here */
3390 		if (ptree_get_node_by_path(ptreepath, &nodeh) == PICL_SUCCESS)
3391 			return;
3392 
3393 		/* Skip if unable to find parent PICL node handle */
3394 		parh = plafh;
3395 		if (((strp = strrchr(ptreepath, '/')) != NULL) &&
3396 		    (strp != strchr(ptreepath, '/'))) {
3397 			*strp = '\0';
3398 			if (ptree_get_node_by_path(ptreepath, &parh) !=
3399 			    PICL_SUCCESS)
3400 				return;
3401 		}
3402 
3403 		/*
3404 		 * If parent is the root node
3405 		 */
3406 		if (parh == plafh) {
3407 			ph = di_prom_init();
3408 			devnode = di_init(dipath, DINFOCPYALL);
3409 			if (devnode == DI_NODE_NIL) {
3410 				if (ph != NULL) {
3411 					di_prom_fini(ph);
3412 					ph = NULL;
3413 				}
3414 				return;
3415 			}
3416 			nodename = di_node_name(devnode);
3417 			if (nodename == NULL) {
3418 				di_fini(devnode);
3419 				if (ph != NULL) {
3420 					di_prom_fini(ph);
3421 					ph = NULL;
3422 				}
3423 				return;
3424 			}
3425 
3426 			err = get_node_class(nodeclass, devnode, nodename);
3427 			if (err < 0) {
3428 				di_fini(devnode);
3429 				if (ph != NULL) {
3430 					di_prom_fini(ph);
3431 					ph = NULL;
3432 				}
3433 				return;
3434 			}
3435 			err = construct_devtype_node(plafh, nodename,
3436 			    nodeclass, devnode, &nodeh);
3437 			if (err != PICL_SUCCESS) {
3438 				di_fini(devnode);
3439 				if (ph != NULL) {
3440 					di_prom_fini(ph);
3441 					ph = NULL;
3442 				}
3443 				return;
3444 			}
3445 			(void) update_subtree(nodeh, devnode);
3446 			(void) add_unitaddr_prop_to_subtree(nodeh);
3447 			if (ph != NULL) {
3448 				di_prom_fini(ph);
3449 				ph = NULL;
3450 			}
3451 			di_fini(devnode);
3452 			goto done;
3453 		}
3454 
3455 		/* kludge ... try without bus-addr first */
3456 		if ((strp = strrchr(dipath, '@')) != NULL) {
3457 			char *p;
3458 
3459 			p = strrchr(dipath, '/');
3460 			if (p != NULL && strp > p) {
3461 				*strp = '\0';
3462 				devnode = di_init(dipath, DINFOCPYALL);
3463 				if (devnode != DI_NODE_NIL)
3464 					di_fini(devnode);
3465 				*strp = '@';
3466 			}
3467 		}
3468 		/* Get parent devnode */
3469 		if ((strp = strrchr(dipath, '/')) != NULL)
3470 			*++strp = '\0';
3471 		devnode = di_init(dipath, DINFOCPYALL);
3472 		if (devnode == DI_NODE_NIL)
3473 			return;
3474 		ph = di_prom_init();
3475 		(void) update_subtree(parh, devnode);
3476 		(void) add_unitaddr_prop_to_subtree(parh);
3477 		if (ph) {
3478 			di_prom_fini(ph);
3479 			ph = NULL;
3480 		}
3481 		di_fini(devnode);
3482 	} else if (strcmp(ename, PICLEVENT_SYSEVENT_DEVICE_REMOVED) == 0) {
3483 		char			delclass[PICL_CLASSNAMELEN_MAX];
3484 		char		*strp;
3485 
3486 		/*
3487 		 * if final element of path doesn't have a unit address
3488 		 * then it is not uniquely identifiable - cannot remove
3489 		 */
3490 		if (((strp = strrchr(ptreepath, '/')) != NULL) &&
3491 		    strchr(strp, '@') == NULL)
3492 			return;
3493 
3494 		/* skip if can't find the node */
3495 		if (ptree_get_node_by_path(ptreepath, &nodeh) != PICL_SUCCESS)
3496 			return;
3497 
3498 		if (ptree_delete_node(nodeh) != PICL_SUCCESS)
3499 			return;
3500 
3501 		if (picldevtree_debug)
3502 			syslog(LOG_INFO,
3503 			    "picldevtree: deleted node nodeh:%llx\n", nodeh);
3504 		if ((ptree_get_propval_by_name(nodeh,
3505 		    PICL_PROP_CLASSNAME, delclass, PICL_CLASSNAMELEN_MAX) ==
3506 		    PICL_SUCCESS) && IS_MC(delclass)) {
3507 			if (post_mc_event(PICLEVENT_MC_REMOVED, nodeh) !=
3508 			    PICL_SUCCESS)
3509 				syslog(LOG_WARNING, PICL_EVENT_DROPPED,
3510 				    PICLEVENT_MC_REMOVED);
3511 		} else
3512 			(void) ptree_destroy_node(nodeh);
3513 	}
3514 done:
3515 	(void) setup_cpus(plafh);
3516 	(void) add_ffb_config_info(plafh);
3517 	set_pci_pciex_deviceid(plafh);
3518 	(void) set_sbus_slot(plafh);
3519 	if (picldevtree_debug > 1)
3520 		syslog(LOG_INFO, "picldevtree: event handler done\n");
3521 }
3522