xref: /illumos-gate/usr/src/lib/fm/topo/modules/i86pc/chip/chip_label.c (revision 99dda20867d903eec23291ba1ecb18a82d70096b)
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 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <stdarg.h>
32 #include <string.h>
33 #include <strings.h>
34 #include <libnvpair.h>
35 #include <kstat.h>
36 #include <unistd.h>
37 #include <sys/types.h>
38 #include <fm/topo_mod.h>
39 
40 #define	BUFSZ	128
41 
42 char *
43 get_fmtstr(topo_mod_t *mod, nvlist_t *in)
44 {
45 	char *fmtstr;
46 	nvlist_t *args;
47 	int ret;
48 
49 	topo_mod_dprintf(mod, "get_fmtstr() called\n");
50 
51 	if ((ret = nvlist_lookup_nvlist(in, TOPO_PROP_ARGS, &args)) != 0) {
52 		topo_mod_dprintf(mod, "Failed to lookup 'args' list (%s)\n",
53 		    strerror(ret));
54 		(void) topo_mod_seterrno(mod, EMOD_NVL_INVAL);
55 		return (NULL);
56 	}
57 	if ((ret = nvlist_lookup_string(args, "format", &fmtstr)) != 0) {
58 		topo_mod_dprintf(mod, "Failed to lookup 'format' arg (%s)\n",
59 		    strerror(ret));
60 		(void) topo_mod_seterrno(mod, EMOD_NVL_INVAL);
61 		return (NULL);
62 	}
63 	return (fmtstr);
64 }
65 
66 int
67 store_prop_val(topo_mod_t *mod, char *buf, char *propname, nvlist_t **out)
68 {
69 	if (topo_mod_nvalloc(mod, out, NV_UNIQUE_NAME) != 0) {
70 		topo_mod_dprintf(mod, "Failed to allocate 'out' nvlist\n");
71 		return (topo_mod_seterrno(mod, EMOD_NOMEM));
72 	}
73 	if (nvlist_add_string(*out, TOPO_PROP_VAL_NAME, propname) != 0) {
74 		topo_mod_dprintf(mod, "Failed to set '%s'\n",
75 		    TOPO_PROP_VAL_NAME);
76 		nvlist_free(*out);
77 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
78 	}
79 	if (nvlist_add_uint32(*out, TOPO_PROP_VAL_TYPE, TOPO_TYPE_STRING)
80 	    != 0) {
81 		topo_mod_dprintf(mod, "Failed to set '%s'\n",
82 		    TOPO_PROP_VAL_TYPE);
83 		nvlist_free(*out);
84 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
85 	}
86 	if (nvlist_add_string(*out, TOPO_PROP_VAL_VAL, buf) != 0) {
87 		topo_mod_dprintf(mod, "Failed to set '%s'\n",
88 		    TOPO_PROP_VAL_VAL);
89 		nvlist_free(*out);
90 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
91 	}
92 	return (0);
93 }
94 
95 /*
96  * This is a somewhat generic property method for labelling the dimm slots on
97  * uni-socket x86/x64 platforms.  This method assumes a direct linear
98  * correlation between the dimm topo node instance number and the dimm slot
99  * label number.  It takes the following two arguments:
100  *
101  * format:	a string containing a printf-like format with a single %d token
102  *              which this method computes
103  *
104  *              i.e.: DIMM %d
105  *
106  * offset:      a numeric offset that we'll number the dimms from.  This is to
107  *              allow for the fact that some systems number the dimm slots
108  *              from zero and others start from one (like the Ultra 20)
109  */
110 /* ARGSUSED */
111 int
112 simple_dimm_label(topo_mod_t *mod, tnode_t *node, topo_version_t vers,
113     nvlist_t *in, nvlist_t **out)
114 {
115 	char *fmtstr, buf[BUFSZ];
116 	int ret;
117 	uint32_t offset;
118 	nvlist_t *args;
119 
120 	topo_mod_dprintf(mod, "simple_dimm_label() called\n");
121 	if ((ret = nvlist_lookup_nvlist(in, TOPO_PROP_ARGS, &args)) != 0) {
122 		topo_mod_dprintf(mod, "Failed to lookup 'args' list (%s)\n",
123 		    strerror(ret));
124 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
125 	}
126 	if ((ret = nvlist_lookup_uint32(args, "offset", &offset)) != 0) {
127 		topo_mod_dprintf(mod, "Failed to lookup 'offset' arg (%s)\n",
128 		    strerror(ret));
129 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
130 	}
131 
132 	if ((fmtstr = get_fmtstr(mod, in)) == NULL) {
133 		topo_mod_dprintf(mod, "Failed to retrieve 'format' arg\n");
134 		/* topo errno already set */
135 		return (-1);
136 	}
137 
138 	/* LINTED: E_SEC_PRINTF_VAR_FMT */
139 	(void) snprintf(buf, BUFSZ, fmtstr,
140 	    (topo_node_instance(node) + offset));
141 
142 	if (store_prop_val(mod, buf, "label", out) != 0) {
143 		topo_mod_dprintf(mod, "Failed to set label\n");
144 		/* topo errno already set */
145 		return (-1);
146 	}
147 
148 	return (0);
149 }
150 
151 
152 /*
153  * This is a somewhat generic property method for labelling the dimm slots on
154  * multi-socket x86/x64 platforms.  It takes the following two arguments:
155  *
156  * format:	a string containing a printf-like format with a two %d tokens
157  *              for the cpu and dimm slot label numbers, which this method
158  *              computes
159  *
160  *              i.e.: CPU %d DIMM %d
161  *
162  * offset:      a numeric offset that we'll number the dimms from.  This is to
163  *              allow for the fact that some systems number the dimm slots
164  *              from zero while others may start from one
165  *
166  * order:	"reverse" or "forward" - sets the direction of the correlation
167  *              between dimm topo node instance number and DIMM slot number
168  *
169  * dimms_per_chip:  the number of DIMM slots per chip
170  */
171 /* ARGSUSED */
172 int
173 simple_dimm_label_mp(topo_mod_t *mod, tnode_t *node, topo_version_t vers,
174     nvlist_t *in, nvlist_t **out)
175 {
176 	char *fmtstr, *order, buf[BUFSZ];
177 	tnode_t *chip;
178 	int ret;
179 	uint32_t offset, dimms_per_chip;
180 	nvlist_t *args;
181 
182 	topo_mod_dprintf(mod, "simple_dimm_label_mp() called\n");
183 
184 	if ((ret = nvlist_lookup_nvlist(in, TOPO_PROP_ARGS, &args)) != 0) {
185 		topo_mod_dprintf(mod, "Failed to lookup 'args' list (%s)\n",
186 		    strerror(ret));
187 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
188 	}
189 	if ((ret = nvlist_lookup_uint32(args, "offset", &offset)) != 0) {
190 		topo_mod_dprintf(mod, "Failed to lookup 'offset' arg (%s)\n",
191 		    strerror(ret));
192 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
193 	}
194 	if ((ret = nvlist_lookup_uint32(args, "dimms_per_chip",
195 	    &dimms_per_chip)) != 0) {
196 		topo_mod_dprintf(mod, "Failed to lookup 'dimms_per_chip' arg "
197 		    "(%s)\n", strerror(ret));
198 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
199 	}
200 	if ((ret = nvlist_lookup_string(args, "order", &order)) != 0) {
201 		topo_mod_dprintf(mod, "Failed to lookup 'order' arg (%s)\n",
202 		    strerror(ret));
203 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
204 	}
205 	if ((fmtstr = get_fmtstr(mod, in)) == NULL) {
206 		topo_mod_dprintf(mod, "Failed to retrieve 'format' arg\n");
207 		topo_mod_free(mod, order, BUFSZ);
208 		/* topo errno already set */
209 		return (-1);
210 	}
211 
212 	chip = topo_node_parent(topo_node_parent(node));
213 
214 	if (strcasecmp(order, "forward") == 0)
215 		/* LINTED: E_SEC_PRINTF_VAR_FMT */
216 		(void) snprintf(buf, BUFSZ, fmtstr, topo_node_instance(chip),
217 		    (topo_node_instance(node) + offset));
218 	else if (strcasecmp(order, "reverse") == 0)
219 		/* LINTED: E_SEC_PRINTF_VAR_FMT */
220 		(void) snprintf(buf, BUFSZ, fmtstr, topo_node_instance(chip),
221 		    (((topo_node_instance(chip) + 1) * dimms_per_chip)
222 		    - (topo_node_instance(node)) - 1 + offset));
223 	else {
224 		topo_mod_dprintf(mod, "Invalid value for order arg\n");
225 		topo_mod_free(mod, order, BUFSZ);
226 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
227 	}
228 
229 	if (store_prop_val(mod, buf, "label", out) != 0) {
230 		topo_mod_dprintf(mod, "Failed to set label\n");
231 		topo_mod_free(mod, order, BUFSZ);
232 		/* topo errno already set */
233 		return (-1);
234 	}
235 
236 	return (0);
237 }
238 
239 /*
240  * This method assumes a correspondence between the dimm topo node instance
241  * number and the dimm slot label number, but unlike simple_chip_label_mp, the
242  * slot numbers aren't reused between CPU's.  This method assumes there
243  * are 4 DIMM slots per chip.  It takes the following two arguments:
244  *
245  * format:	a string containing a printf-like format with a single %d token
246  *              which this method computes
247  *
248  *              i.e.: DIMM %d
249  *
250  * offset:      a numeric offset that we'll number the dimms from.  This is to
251  *              allow for the fact that some systems number the dimm slots
252  *              from zero and others may start from one
253  *
254  * order:	"reverse" or "forward" - sets the direction of the correlation
255  *              between dimm topo node instance number and DIMM slot number
256  */
257 /* ARGSUSED */
258 int
259 seq_dimm_label(topo_mod_t *mod, tnode_t *node, topo_version_t vers,
260     nvlist_t *in, nvlist_t **out)
261 {
262 	char *fmtstr, *order, buf[BUFSZ];
263 	int ret;
264 	uint32_t offset;
265 	nvlist_t *args;
266 	tnode_t *chip;
267 
268 	topo_mod_dprintf(mod, "seq_dimm_label() called\n");
269 	if ((ret = nvlist_lookup_nvlist(in, TOPO_PROP_ARGS, &args)) != 0) {
270 		topo_mod_dprintf(mod, "Failed to lookup 'args' list (%s)\n",
271 		    strerror(ret));
272 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
273 	}
274 	if ((ret = nvlist_lookup_uint32(args, "offset", &offset)) != 0) {
275 		topo_mod_dprintf(mod, "Failed to lookup 'offset' arg (%s)\n",
276 		    strerror(ret));
277 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
278 	}
279 	if ((ret = nvlist_lookup_string(args, "order", &order)) != 0) {
280 		topo_mod_dprintf(mod, "Failed to lookup 'order' arg (%s)\n",
281 		    strerror(ret));
282 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
283 	}
284 
285 	if ((fmtstr = get_fmtstr(mod, in)) == NULL) {
286 		topo_mod_dprintf(mod, "Failed to retrieve 'format' arg\n");
287 		topo_mod_free(mod, order, BUFSZ);
288 		/* topo errno already set */
289 		return (-1);
290 	}
291 
292 	chip = topo_node_parent(topo_node_parent(node));
293 
294 	if (strcasecmp(order, "forward") == 0)
295 		/* LINTED: E_SEC_PRINTF_VAR_FMT */
296 		(void) snprintf(buf, BUFSZ, fmtstr, ((topo_node_instance(node))
297 		    + (topo_node_instance(chip) * 4) + offset));
298 	else if (strcasecmp(order, "reverse") == 0)
299 		/* LINTED: E_SEC_PRINTF_VAR_FMT */
300 		(void) snprintf(buf, BUFSZ, fmtstr,
301 		    (((topo_node_instance(chip) + 1) * 4)
302 		    - (topo_node_instance(node)) - 1 + offset));
303 	else {
304 		topo_mod_dprintf(mod, "Invalid value for order arg\n");
305 		topo_mod_free(mod, order, BUFSZ);
306 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
307 	}
308 
309 	if (store_prop_val(mod, buf, "label", out) != 0) {
310 		topo_mod_dprintf(mod, "Failed to set label\n");
311 		topo_mod_free(mod, order, BUFSZ);
312 		/* topo errno already set */
313 		return (-1);
314 	}
315 
316 	return (0);
317 }
318 
319 
320 /*
321  * This is a somewhat generic property method for labelling the CPU sockets on
322  * x86/x64 platforms.  This method assumes a correspondence between
323  * the chip topo node instance number and the CPU socket label number.  It takes
324  * the following two arguments:
325  *
326  * format:	a string containing a printf-like format with a single %d token
327  *              which this method computes
328  *
329  *              i.e.: CPU %d
330  *
331  * offset:      a numeric offset that we'll number the CPU's from.  This is to
332  *              allow for the fact that some systems number the CPU sockets
333  *              from zero and others start from one (like the X4X00-M2 systems)
334  */
335 /* ARGSUSED */
336 int
337 simple_chip_label(topo_mod_t *mod, tnode_t *node, topo_version_t vers,
338     nvlist_t *in, nvlist_t **out)
339 {
340 	char *fmtstr, buf[BUFSZ];
341 	int ret;
342 	uint32_t offset;
343 	nvlist_t *args;
344 
345 	topo_mod_dprintf(mod, "simple_chip_label() called\n");
346 	if ((ret = nvlist_lookup_nvlist(in, TOPO_PROP_ARGS, &args)) != 0) {
347 		topo_mod_dprintf(mod, "Failed to lookup 'args' list (%s)\n",
348 		    strerror(ret));
349 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
350 	}
351 	if ((ret = nvlist_lookup_uint32(args, "offset", &offset)) != 0) {
352 		topo_mod_dprintf(mod, "Failed to lookup 'offset' arg (%s)\n",
353 		    strerror(ret));
354 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
355 	}
356 
357 	if ((fmtstr = get_fmtstr(mod, in)) == NULL) {
358 		topo_mod_dprintf(mod, "Failed to retrieve 'format' arg\n");
359 		/* topo errno already set */
360 		return (-1);
361 	}
362 
363 	/* LINTED: E_SEC_PRINTF_VAR_FMT */
364 	(void) snprintf(buf, BUFSZ, fmtstr,
365 	    (topo_node_instance(node) + offset));
366 
367 	if (store_prop_val(mod, buf, "label", out) != 0) {
368 		topo_mod_dprintf(mod, "Failed to set label\n");
369 		/* topo errno already set */
370 		return (-1);
371 	}
372 
373 	return (0);
374 }
375 
376 
377 /*
378  * This is a custom property method for generating the CPU slot label for the
379  * Galaxy 4E/4F platforms.
380  *
381  * format:	a string containing a printf-like format with a single %c token
382  *              which this method computes
383  *
384  *              i.e.: CPU %c
385  */
386 /* ARGSUSED */
387 int
388 g4_chip_label(topo_mod_t *mod, tnode_t *node, topo_version_t vers,
389     nvlist_t *in, nvlist_t **out)
390 {
391 	char *fmtstr, buf[BUFSZ], slot_id;
392 	int err, htid, mapidx;
393 	uint32_t num_nodes;
394 	/*
395 	 * G4 HT node ID to FRU label translation.  The g4map array
396 	 * is indexed by (number of coherent nodes) / 2 - 1.
397 	 * The value for a given number of nodes is a char array
398 	 * indexed by node ID.
399 	 */
400 	const char *g4map[] = {
401 	    "AB",	/* 2 nodes */
402 	    "ADEH",	/* 4 nodes */
403 	    "ABDEFH",	/* 6 nodes */
404 	    "ACBDEFGH"	/* 8 nodes */
405 	};
406 
407 	topo_mod_dprintf(mod, "g4_chip_label() called\n");
408 	if ((fmtstr = get_fmtstr(mod, in)) == NULL) {
409 		topo_mod_dprintf(mod, "Failed to retrieve 'format' arg\n");
410 		/* topo errno already set */
411 		return (-1);
412 	}
413 	/*
414 	 * The chip-properties property will not exist if this platform has
415 	 * AMD family 0x10 modules.  In that case we don't want to treat it as a
416 	 * fatal error as that will cause calls like topo_prop_getprops to fail
417 	 * to return any properties on this node.  Therefore, if the topo errno
418 	 * is set to ETOPO_PROP_NOENT, then we'll just set an empty label
419 	 * and return 0.  If the topo errno is set to anything else we'll
420 	 * return -1.
421 	 */
422 	if (topo_prop_get_uint32(node, "chip-properties", "CoherentNodes",
423 	    &num_nodes, &err) != 0) {
424 		if (err == ETOPO_PROP_NOENT) {
425 			if (store_prop_val(mod, "", "label", out) != 0) {
426 				topo_mod_dprintf(mod, "Failed to set label\n");
427 				/* topo errno already set */
428 				return (-1);
429 			}
430 			return (0);
431 		} else {
432 			topo_mod_dprintf(mod, "Failed to lookup 'CoherentNodes'"
433 			    "property\n");
434 			return (topo_mod_seterrno(mod, err));
435 		}
436 	}
437 
438 	mapidx = num_nodes / 2 - 1;
439 	htid = topo_node_instance(node);
440 
441 	/* HT nodes must number 0 .. num_nodes - 1 */
442 	if (htid >= num_nodes) {
443 		topo_mod_dprintf(mod, "chip node instance range check failed:"
444 		    "num_nodes=%d, instance=%d\n", num_nodes, htid);
445 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
446 	}
447 
448 	switch (num_nodes) {
449 		case (2):
450 		case (4):
451 		case (6):
452 		case (8):
453 			/* htid is already range-checked */
454 			mapidx = num_nodes / 2 - 1;
455 			slot_id = g4map[mapidx][htid];
456 			break;
457 		default:
458 			topo_mod_dprintf(mod, "Invalid number of CoherentNodes:"
459 			    " %d\n", num_nodes);
460 			return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
461 	}
462 
463 	/* LINTED: E_SEC_PRINTF_VAR_FMT */
464 	(void) snprintf(buf, BUFSZ, fmtstr, slot_id);
465 
466 	if (store_prop_val(mod, buf, "label", out) != 0) {
467 		topo_mod_dprintf(mod, "Failed to set label\n");
468 		/* topo errno already set */
469 		return (-1);
470 	}
471 
472 	return (0);
473 }
474 
475 /*
476  * Utility function used by a4fplus_chip_label to determine the number of chips
477  * (as opposed to processors) that are installed in the system by dividing the
478  * number of installed processors (cores) by the number of cores per chip
479  * (from kstat).  This assumes that an an A4F+ blade won't have some weird
480  * configuration of mixed chip models with differing numbers of cores per chip,
481  * which I think is a relatively safe assumption here.
482  */
483 static int
484 get_num_chips(topo_mod_t *mod)
485 {
486 	kstat_t *ksp;
487 	kstat_ctl_t *kctl;
488 	kstat_named_t *k;
489 
490 	if ((kctl = kstat_open()) == NULL) {
491 		topo_mod_dprintf(mod, NULL, "kstat_open failed (%s)\n",
492 		    strerror(errno));
493 		return (-1);
494 	}
495 	if ((ksp = kstat_lookup(kctl, "cpu_info", -1, NULL)) == NULL) {
496 		topo_mod_dprintf(mod, NULL, "kstat_lookup failed (%s)\n",
497 		    strerror(errno));
498 		(void) kstat_close(kctl);
499 		return (-1);
500 	}
501 	if (kstat_read(kctl, ksp, NULL) < 0) {
502 		topo_mod_dprintf(mod, NULL, "kstat_read failed (%s)\n",
503 		    strerror(errno));
504 		(void) kstat_close(kctl);
505 		return (-1);
506 	}
507 	if ((k = kstat_data_lookup(ksp, "ncore_per_chip")) == NULL) {
508 		topo_mod_dprintf(mod, NULL, "kstat_data_lookup failed (%s)\n",
509 		    strerror(errno));
510 		(void) kstat_close(kctl);
511 		return (-1);
512 	}
513 	(void) kstat_close(kctl);
514 	return (sysconf(_SC_NPROCESSORS_CONF) / k->value.l);
515 }
516 
517 /*
518  * This is a custom property method for generating the CPU slot label for the
519  * Andromeda Fplus platforms.
520  *
521  * format:	a string containing a printf-like format with a single %d token
522  *              which this method computes
523  *
524  *              i.e.: CPU %d
525  */
526 /* ARGSUSED */
527 int
528 a4fplus_chip_label(topo_mod_t *mod, tnode_t *node, topo_version_t vers,
529     nvlist_t *in, nvlist_t **out)
530 {
531 	char *fmtstr, buf[BUFSZ];
532 	int num_nodes;
533 
534 	topo_mod_dprintf(mod, "a4fplus_chip_label() called\n");
535 	if ((fmtstr = get_fmtstr(mod, in)) == NULL) {
536 		topo_mod_dprintf(mod, "Failed to retrieve 'format' arg\n");
537 		/* topo errno already set */
538 		return (-1);
539 	}
540 
541 	/*
542 	 * Normally we'd figure out the total number of chip nodes by looking
543 	 * at the CoherentNodes property.  However, due to the lack of a memory
544 	 * controller driver for family 0x10, this property wont exist on the
545 	 * chip nodes on A4Fplus.
546 	 */
547 	if ((num_nodes = get_num_chips(mod)) < 0) {
548 		topo_mod_dprintf(mod, "Failed to determine number of chip "
549 		    "nodes\n");
550 		return (topo_mod_seterrno(mod, EMOD_UNKNOWN));
551 	}
552 	switch (num_nodes) {
553 		case (2):
554 			/* LINTED: E_SEC_PRINTF_VAR_FMT */
555 			(void) snprintf(buf, BUFSZ, fmtstr,
556 			    topo_node_instance(node) + 2);
557 			break;
558 		case (4):
559 			/* LINTED: E_SEC_PRINTF_VAR_FMT */
560 			(void) snprintf(buf, BUFSZ, fmtstr,
561 			    topo_node_instance(node));
562 			break;
563 		default:
564 			topo_mod_dprintf(mod, "Invalid number of chip nodes:"
565 			    " %d\n", num_nodes);
566 			return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
567 	}
568 
569 
570 	if (store_prop_val(mod, buf, "label", out) != 0) {
571 		topo_mod_dprintf(mod, "Failed to set label\n");
572 		/* topo errno already set */
573 		return (-1);
574 	}
575 
576 	return (0);
577 }
578 
579 /*
580  * This is a somewhat generic property method for labelling the chip-select
581  * nodes on multi-socket AMD family 0x10 platforms.  This is necessary because
582  * these platforms are not supported by the current AMD memory controller driver
583  * and therefore we're not able to discover the memory topology on AMD family
584  * 0x10 systems.  As a result, instead of enumerating the installed dimms and
585  * their ranks, the chip enumerator generically enumerates all of the possible
586  * chip-selects beneath each dram channel.
587  *
588  * When we diagnose a dimm fault, the FRU fmri will be for the chip-select node,
589  * so we need to attach FRU labels to the chip-select nodes.
590  *
591  * format:	a string containing a printf-like format with a two %d tokens
592  *              for the cpu and dimm slot label numbers, which this method
593  *              computes
594  *
595  *              i.e.: CPU %d DIMM %d
596  *
597  * offset:      a numeric offset that we'll number the dimms from.  This is to
598  *              allow for the fact that some systems may number the dimm slots
599  *              from zero while others may start from one
600  *
601  * This function computes the DIMM slot number using the following formula:
602  *
603  * 	slot = cs - (cs % 2) + channel + offset
604  */
605 /* ARGSUSED */
606 int
607 simple_cs_label_mp(topo_mod_t *mod, tnode_t *node, topo_version_t vers,
608     nvlist_t *in, nvlist_t **out)
609 {
610 	char *fmtstr, buf[BUFSZ];
611 	tnode_t *chip, *chan;
612 	int dimm_num, ret;
613 	uint32_t offset;
614 	nvlist_t *args;
615 
616 	topo_mod_dprintf(mod, "simple_cs_label_mp() called\n");
617 
618 	if ((ret = nvlist_lookup_nvlist(in, TOPO_PROP_ARGS, &args)) != 0) {
619 		topo_mod_dprintf(mod, "Failed to lookup 'args' list (%s)\n",
620 		    strerror(ret));
621 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
622 	}
623 	if ((ret = nvlist_lookup_uint32(args, "offset", &offset)) != 0) {
624 		topo_mod_dprintf(mod, "Failed to lookup 'offset' arg (%s)\n",
625 		    strerror(ret));
626 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
627 	}
628 	if ((fmtstr = get_fmtstr(mod, in)) == NULL) {
629 		topo_mod_dprintf(mod, "Failed to retrieve 'format' arg\n");
630 		/* topo errno already set */
631 		return (-1);
632 	}
633 
634 	chip = topo_node_parent(topo_node_parent(topo_node_parent(node)));
635 	chan = topo_node_parent(node);
636 
637 	dimm_num = topo_node_instance(node) - (topo_node_instance(node) % 2)
638 	    + topo_node_instance(chan) + offset;
639 	/* LINTED: E_SEC_PRINTF_VAR_FMT */
640 	(void) snprintf(buf, BUFSZ, fmtstr, topo_node_instance(chip),
641 	    dimm_num);
642 
643 	if (store_prop_val(mod, buf, "label", out) != 0) {
644 		topo_mod_dprintf(mod, "Failed to set label\n");
645 		/* topo errno already set */
646 		return (-1);
647 	}
648 
649 	return (0);
650 }
651 
652 /* ARGSUSED */
653 int
654 g4_dimm_label(topo_mod_t *mod, tnode_t *node, topo_version_t vers,
655     nvlist_t *in, nvlist_t **out)
656 {
657 	char *fmtstr, *chip_lbl, buf[BUFSZ];
658 	tnode_t *chip;
659 	int ret, err = 0;
660 	uint32_t offset;
661 	nvlist_t *args;
662 
663 	topo_mod_dprintf(mod, "g4_dimm_label() called\n");
664 
665 	if ((ret = nvlist_lookup_nvlist(in, TOPO_PROP_ARGS, &args)) != 0) {
666 		topo_mod_dprintf(mod, "Failed to lookup 'args' list (%s)\n",
667 		    strerror(ret));
668 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
669 	}
670 	if ((ret = nvlist_lookup_uint32(args, "offset", &offset)) != 0) {
671 		topo_mod_dprintf(mod, "Failed to lookup 'offset' arg (%s)\n",
672 		    strerror(ret));
673 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
674 	}
675 	if ((fmtstr = get_fmtstr(mod, in)) == NULL) {
676 		topo_mod_dprintf(mod, "Failed to retrieve 'format' arg\n");
677 		/* topo errno already set */
678 		return (-1);
679 	}
680 
681 	/*
682 	 * The 4600/4600M2 have a weird way of labeling the chip nodes, so
683 	 * instead of trying to recompute it, we'll simply look it up and
684 	 * prepend it to our dimm label.
685 	 */
686 	chip = topo_node_parent(topo_node_parent(node));
687 	if (topo_prop_get_string(chip, TOPO_PGROUP_PROTOCOL, "label", &chip_lbl,
688 	    &err) != 0) {
689 		topo_mod_dprintf(mod, "Failed to lookup label prop on %s=%d\n",
690 		    topo_node_name(chip), topo_node_instance(chip),
691 		    topo_strerror(err));
692 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
693 	}
694 
695 	/* LINTED: E_SEC_PRINTF_VAR_FMT */
696 	(void) snprintf(buf, BUFSZ, fmtstr, chip_lbl,
697 	    (topo_node_instance(node) + offset));
698 
699 	topo_mod_strfree(mod, chip_lbl);
700 
701 	if (store_prop_val(mod, buf, "label", out) != 0) {
702 		topo_mod_dprintf(mod, "Failed to set label\n");
703 		/* topo errno already set */
704 		return (-1);
705 	}
706 
707 	return (0);
708 }
709 
710 /*
711  * This method is used to compute the labels for DIMM slots on the Galaxy 1F and
712  * 2F platforms.  It results in following dimm node label assignments:
713  *
714  * chip/dimm instances      label
715  * -------------------      -----
716  * chip=0/dimm=0            CPU 1 DIMM A0
717  * chip=0/dimm=1            CPU 1 DIMM B0
718  * chip=0/dimm=2            CPU 1 DIMM A1
719  * chip=0/dimm=3            CPU 1 DIMM B1
720  *
721  * chip=1/dimm=0            CPU 2 DIMM A0
722  * chip=1/dimm=1            CPU 2 DIMM B0
723  * chip=1/dimm=2            CPU 2 DIMM A1
724  * chip=1/dimm=3            CPU 2 DIMM B1
725  */
726 /* ARGSUSED */
727 int
728 g12f_dimm_label(topo_mod_t *mod, tnode_t *node, topo_version_t vers,
729     nvlist_t *in, nvlist_t **out)
730 {
731 	char *fmtstr, buf[BUFSZ], chan;
732 	tnode_t *chip;
733 	int ret, dimm_inst, slot_num;
734 	nvlist_t *args;
735 
736 	topo_mod_dprintf(mod, "g12f_dimm_label() called\n");
737 
738 	if ((ret = nvlist_lookup_nvlist(in, TOPO_PROP_ARGS, &args)) != 0) {
739 		topo_mod_dprintf(mod, "Failed to lookup 'args' list (%s)\n",
740 		    strerror(ret));
741 		return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
742 	}
743 	if ((fmtstr = get_fmtstr(mod, in)) == NULL) {
744 		topo_mod_dprintf(mod, "Failed to retrieve 'format' arg\n");
745 		/* topo errno already set */
746 		return (-1);
747 	}
748 
749 	chip = topo_node_parent(topo_node_parent(node));
750 	dimm_inst = topo_node_instance(node);
751 	chan = dimm_inst == 0 || dimm_inst == 2 ? 'A': 'B';
752 	slot_num = (dimm_inst <= 1 ? 0 : 1);
753 
754 	/* LINTED: E_SEC_PRINTF_VAR_FMT */
755 	(void) snprintf(buf, BUFSZ, fmtstr, topo_node_instance(chip) + 1, chan,
756 	    slot_num);
757 
758 	if (store_prop_val(mod, buf, "label", out) != 0) {
759 		topo_mod_dprintf(mod, "Failed to set label\n");
760 		/* topo errno already set */
761 		return (-1);
762 	}
763 
764 	return (0);
765 }
766