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 (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25
26 #include <stdlib.h>
27 #include <string.h>
28 #include <strings.h>
29 #include <fm/topo_mod.h>
30 #include <fm/topo_hc.h>
31 #include <libdevinfo.h>
32 #include <limits.h>
33 #include <sys/fm/protocol.h>
34 #include <sys/param.h>
35 #include <sys/systeminfo.h>
36 #include <assert.h>
37 #include <sys/utsname.h>
38 #include <sys/systeminfo.h>
39 #include <fm/fmd_fmri.h>
40 #include <sys/types.h>
41 #include <sys/mdesc.h>
42 #include <sys/fm/ldom.h>
43
44 #include "cpuboard_topo.h"
45
46 /*
47 * cpuboard.c
48 * sun4v specific cpuboard enumerator
49 */
50
51 #ifdef __cplusplus
52 extern "C" {
53 #endif
54
55 #define CPUBOARD_VERSION TOPO_VERSION
56
57 /* Until future PRI changes, make connection between cpuboard id and RC */
58 char *cpub_rcs[] = { CPUBOARD0_RC, CPUBOARD1_RC, CPUBOARD2_RC, CPUBOARD3_RC };
59
60 static int cpuboard_enum(topo_mod_t *, tnode_t *, const char *, topo_instance_t,
61 topo_instance_t, void *, void *);
62
63 static const topo_modops_t cpuboard_ops =
64 { cpuboard_enum, NULL };
65
66 const topo_modinfo_t cpuboard_info =
67 {CPUBOARD, FM_FMRI_SCHEME_HC, CPUBOARD_VERSION, &cpuboard_ops};
68
69 static const topo_pgroup_info_t cpuboard_auth_pgroup =
70 { FM_FMRI_AUTHORITY, TOPO_STABILITY_PRIVATE,
71 TOPO_STABILITY_PRIVATE, 1 };
72
73 static topo_mod_t *cpuboard_mod_hdl = NULL;
74
75 static void *
cpuboard_topo_alloc(size_t size)76 cpuboard_topo_alloc(size_t size)
77 {
78 assert(cpuboard_mod_hdl != NULL);
79 return (topo_mod_alloc(cpuboard_mod_hdl, size));
80 }
81
82 static void
cpuboard_topo_free(void * data,size_t size)83 cpuboard_topo_free(void *data, size_t size)
84 {
85 assert(cpuboard_mod_hdl != NULL);
86 topo_mod_free(cpuboard_mod_hdl, data, size);
87 }
88
89 static int
cpuboard_get_pri_info(topo_mod_t * mod,cpuboard_contents_t cpubs[])90 cpuboard_get_pri_info(topo_mod_t *mod, cpuboard_contents_t cpubs[])
91 {
92 char isa[MAXNAMELEN];
93 md_t *mdp;
94 mde_cookie_t *listp;
95 uint64_t *bufp;
96 ssize_t bufsize = 0;
97 int ncomp, num_nodes, i, len;
98 char *pstr = NULL;
99 char *sn = NULL, *pn = NULL;
100 char *dn = NULL;
101 uint32_t type = 0;
102 ldom_hdl_t *lhp;
103 uint64_t id;
104 int cpuboards_found = 0;
105
106 lhp = ldom_init(cpuboard_topo_alloc, cpuboard_topo_free);
107 if (lhp == NULL) {
108 topo_mod_dprintf(mod, "ldom_init failed\n");
109 return (0);
110 }
111
112 (void) sysinfo(SI_MACHINE, isa, MAXNAMELEN);
113 if (strcmp(isa, "sun4v") != 0) {
114 topo_mod_dprintf(mod, "not sun4v architecture%s\n", isa);
115 ldom_fini(lhp);
116 return (0);
117 }
118
119 (void) ldom_get_type(lhp, &type);
120 if ((type & LDOM_TYPE_CONTROL) != 0) {
121 bufsize = ldom_get_core_md(lhp, &bufp);
122 } else {
123 bufsize = ldom_get_local_md(lhp, &bufp);
124 }
125 if (bufsize < 1) {
126 topo_mod_dprintf(mod, "Failed to get pri/md, bufsize=%d\n",
127 bufsize);
128 ldom_fini(lhp);
129 return (0);
130 }
131 topo_mod_dprintf(mod, "pri/md bufsize=%d\n", bufsize);
132
133 if ((mdp = md_init_intern(bufp, cpuboard_topo_alloc,
134 cpuboard_topo_free)) == NULL ||
135 (num_nodes = md_node_count(mdp)) < 1) {
136 topo_mod_dprintf(mod, "md_init_intern error\n");
137 cpuboard_topo_free(bufp, (size_t)bufsize);
138 ldom_fini(lhp);
139 return (0);
140 }
141 topo_mod_dprintf(mod, "num_nodes=%d\n", num_nodes);
142
143 if ((listp = (mde_cookie_t *)cpuboard_topo_alloc(
144 sizeof (mde_cookie_t) * num_nodes)) == NULL) {
145 topo_mod_dprintf(mod, "alloc listp error\n");
146 cpuboard_topo_free(bufp, (size_t)bufsize);
147 (void) md_fini(mdp);
148 ldom_fini(lhp);
149 return (0);
150 }
151 ncomp = md_scan_dag(mdp, MDE_INVAL_ELEM_COOKIE,
152 md_find_name(mdp, "component"),
153 md_find_name(mdp, "fwd"), listp);
154 topo_mod_dprintf(mod, "ncomp=%d\n", ncomp);
155 if (ncomp <= 0) {
156 cpuboard_topo_free(listp, sizeof (mde_cookie_t) * num_nodes);
157 cpuboard_topo_free(bufp, (size_t)bufsize);
158 (void) md_fini(mdp);
159 ldom_fini(lhp);
160 return (0);
161 }
162 for (i = 0; i < ncomp; i++) {
163 /*
164 * PRI nodes are still named "cpu-board", but the canonical
165 * names are "cpuboard".
166 */
167 if (md_get_prop_str(mdp, listp[i], "type", &pstr) == 0 &&
168 pstr != NULL && strcmp(pstr, "cpu-board") == 0) {
169 if (md_get_prop_val(mdp, listp[i], "id", &id) < 0) {
170 topo_mod_dprintf(mod, "cpuboard_get_pri_info: "
171 "id md_get_prop_val() failed. (%d: %s)\n",
172 errno, strerror(errno));
173 continue;
174 }
175 if ((id >= CPUBOARD_MAX) || cpubs[id].present) {
176 (void) topo_mod_seterrno(mod, EMOD_NVL_INVAL);
177 topo_mod_dprintf(mod, "cpuboard_get_pri_info: "
178 "id %llx out of range. (%d: %s)\n",
179 id, errno, strerror(errno));
180 continue;
181 }
182 cpubs[id].present = 1;
183 cpuboards_found++;
184
185 topo_mod_dprintf(mod, "got cpu-board: %llx\n", id);
186
187 sn = pn = dn = NULL;
188
189 (void) md_get_prop_str(mdp, listp[i],
190 "serial_number", &sn);
191 cpubs[id].sn = topo_mod_strdup(mod, sn);
192
193 (void) md_get_prop_str(mdp, listp[i],
194 "part_number", &pn);
195
196 (void) md_get_prop_str(mdp, listp[i],
197 "dash_number", &dn);
198 len = (pn ? strlen(pn) : 0) + (dn ? strlen(dn) : 0) + 1;
199 pstr = cpuboard_topo_alloc(len);
200 (void) snprintf(pstr, len, "%s%s",
201 pn ? pn : "", dn ? dn : "");
202 cpubs[id].pn = topo_mod_strdup(mod, pstr);
203 cpuboard_topo_free(pstr, len);
204 }
205 }
206 cpuboard_topo_free(listp, sizeof (mde_cookie_t) * num_nodes);
207 cpuboard_topo_free(bufp, (size_t)bufsize);
208 (void) md_fini(mdp);
209 ldom_fini(lhp);
210
211 return (cpuboards_found);
212 }
213
214 /*ARGSUSED*/
215 void
_topo_init(topo_mod_t * mod,topo_version_t version)216 _topo_init(topo_mod_t *mod, topo_version_t version)
217 {
218 /*
219 * Turn on module debugging output
220 */
221 if (getenv("TOPOCPUBOARDDBG") != NULL) {
222 topo_mod_setdebug(mod);
223 }
224 topo_mod_dprintf(mod, "initializing cpuboard enumerator\n");
225
226 if (topo_mod_register(mod, &cpuboard_info, TOPO_VERSION) < 0) {
227 topo_mod_dprintf(mod, "cpuboard registration failed: %s\n",
228 topo_mod_errmsg(mod));
229 return; /* mod errno already set */
230 }
231 topo_mod_dprintf(mod, "cpuboard enumr initd\n");
232 }
233
234 void
_topo_fini(topo_mod_t * mod)235 _topo_fini(topo_mod_t *mod)
236 {
237 topo_mod_unregister(mod);
238 }
239
240 static tnode_t *
cpuboard_tnode_create(topo_mod_t * mod,tnode_t * parent,const char * name,topo_instance_t i,void * priv,cpuboard_contents_t * cpubc)241 cpuboard_tnode_create(topo_mod_t *mod, tnode_t *parent,
242 const char *name, topo_instance_t i, void *priv, cpuboard_contents_t *cpubc)
243 {
244 int err;
245 nvlist_t *fmri;
246 tnode_t *ntn;
247 nvlist_t *auth = topo_mod_auth(mod, parent);
248
249 fmri = topo_mod_hcfmri(mod, parent, FM_HC_SCHEME_VERSION, name, i,
250 NULL, auth, cpubc->pn, NULL, cpubc->sn);
251 nvlist_free(auth);
252
253 if (fmri == NULL) {
254 topo_mod_dprintf(mod,
255 "Unable to make nvlist for %s bind: %s.\n",
256 name, topo_mod_errmsg(mod));
257 return (NULL);
258 }
259
260 ntn = topo_node_bind(mod, parent, name, i, fmri);
261 if (ntn == NULL) {
262 topo_mod_dprintf(mod,
263 "topo_node_bind (%s%d/%s%d) failed: %s\n",
264 topo_node_name(parent), topo_node_instance(parent),
265 name, i,
266 topo_strerror(topo_mod_errno(mod)));
267 nvlist_free(fmri);
268 return (NULL);
269 }
270 topo_mod_dprintf(mod,
271 "cpuboard_tnode_create: topo_node_bind (%s%d/%s%d) created!\n",
272 topo_node_name(parent), topo_node_instance(parent), name, i);
273 nvlist_free(fmri);
274 topo_node_setspecific(ntn, priv);
275
276 if (topo_pgroup_create(ntn, &cpuboard_auth_pgroup, &err) == 0) {
277 (void) topo_prop_inherit(ntn, FM_FMRI_AUTHORITY,
278 FM_FMRI_AUTH_PRODUCT, &err);
279 (void) topo_prop_inherit(ntn, FM_FMRI_AUTHORITY,
280 FM_FMRI_AUTH_PRODUCT_SN, &err);
281 (void) topo_prop_inherit(ntn, FM_FMRI_AUTHORITY,
282 FM_FMRI_AUTH_CHASSIS, &err);
283 (void) topo_prop_inherit(ntn, FM_FMRI_AUTHORITY,
284 FM_FMRI_AUTH_SERVER, &err);
285 }
286
287 return (ntn);
288 }
289
290 static int
cpuboard_fru_set(topo_mod_t * mp,tnode_t * tn)291 cpuboard_fru_set(topo_mod_t *mp, tnode_t *tn)
292 {
293 nvlist_t *fmri;
294 int err, e;
295
296 if (topo_node_resource(tn, &fmri, &err) < 0 ||
297 fmri == NULL) {
298 topo_mod_dprintf(mp, "FRU_fmri_set error: %s\n",
299 topo_strerror(topo_mod_errno(mp)));
300 return (topo_mod_seterrno(mp, err));
301 }
302 e = topo_node_fru_set(tn, fmri, 0, &err);
303 nvlist_free(fmri);
304 if (e < 0)
305 return (topo_mod_seterrno(mp, err));
306 return (0);
307 }
308
309 static int
cpuboard_label_set(topo_mod_t * mod,tnode_t * parent,tnode_t * node,topo_instance_t n)310 cpuboard_label_set(topo_mod_t *mod, tnode_t *parent, tnode_t *node,
311 topo_instance_t n)
312 {
313 char *label = NULL;
314 char *plabel = NULL;
315 const char *cpuboard_label = "/CPU";
316 int err, len;
317
318 if (topo_node_label(parent, &plabel, &err) != 0 ||
319 plabel == NULL) {
320 return (-1);
321 }
322
323 len = strlen(plabel) + strlen(cpuboard_label) + 2;
324 label = topo_mod_alloc(mod, len);
325 (void) snprintf(label, len, "%s%s%d", plabel, cpuboard_label, n);
326 topo_mod_strfree(mod, plabel);
327
328 if (label != NULL) {
329 if (topo_prop_set_string(node, TOPO_PGROUP_PROTOCOL,
330 TOPO_PROP_LABEL, TOPO_PROP_IMMUTABLE, label,
331 &err) != 0) {
332 topo_mod_strfree(mod, label);
333 return (topo_mod_seterrno(mod, err));
334 }
335 }
336 topo_mod_free(mod, label, len);
337 return (0);
338 }
339
340
341 /*ARGSUSED*/
342 static tnode_t *
cpuboard_declare(tnode_t * parent,const char * name,topo_instance_t i,void * priv,topo_mod_t * mod,cpuboard_contents_t * cpubc)343 cpuboard_declare(tnode_t *parent, const char *name, topo_instance_t i,
344 void *priv, topo_mod_t *mod, cpuboard_contents_t *cpubc)
345 {
346 tnode_t *ntn;
347 nvlist_t *fmri = NULL;
348 int err;
349
350 if ((ntn = cpuboard_tnode_create(mod, parent, name, i, priv,
351 cpubc)) == NULL) {
352 topo_mod_dprintf(mod, "%s ntn = NULL\n", name);
353 return (NULL);
354 }
355
356 (void) cpuboard_fru_set(mod, ntn);
357
358 (void) cpuboard_label_set(mod, parent, ntn, i);
359
360 /* set ASRU to resource fmri */
361 if (topo_prop_get_fmri(ntn, TOPO_PGROUP_PROTOCOL,
362 TOPO_PROP_RESOURCE, &fmri, &err) == 0)
363 (void) topo_node_asru_set(ntn, fmri, 0, &err);
364 nvlist_free(fmri);
365
366 return (ntn);
367 }
368
369 static int
chip_instantiate(tnode_t * parent,const char * name,topo_mod_t * mod,topo_instance_t inst)370 chip_instantiate(tnode_t *parent, const char *name, topo_mod_t *mod,
371 topo_instance_t inst)
372 {
373 if (strcmp(name, CPUBOARD) != 0) {
374 topo_mod_dprintf(mod,
375 "Currently only know how to enumerate %s components.\n",
376 CPUBOARD);
377 return (0);
378 }
379 topo_mod_dprintf(mod,
380 "Calling chip_enum for inst: %lx\n", inst);
381 if (topo_mod_enumerate(mod,
382 parent, CHIP, CHIP, inst, inst, NULL) != 0) {
383 return (topo_mod_seterrno(mod, EMOD_PARTIAL_ENUM));
384 }
385 return (0);
386 }
387
388 static topo_mod_t *
chip_enum_load(topo_mod_t * mp)389 chip_enum_load(topo_mod_t *mp)
390 {
391 topo_mod_t *rp = NULL;
392
393 topo_mod_dprintf(mp, "chip_enum_load: %s\n", CPUBOARD);
394 if ((rp = topo_mod_load(mp, CHIP, TOPO_VERSION)) == NULL) {
395 topo_mod_dprintf(mp,
396 "%s enumerator could not load %s enum. (%d: %s)\n",
397 CPUBOARD, CHIP, errno, strerror(errno));
398 }
399 topo_mod_dprintf(mp, "chip_enum_load(EXIT): %s, rp=%p\n", CPUBOARD, rp);
400 return (rp);
401 }
402
403 static di_node_t
cpuboard_findrc(topo_mod_t * mod,uint64_t id)404 cpuboard_findrc(topo_mod_t *mod, uint64_t id)
405 {
406 di_node_t devtree;
407 di_node_t dnode;
408
409 if ((devtree = topo_mod_devinfo(mod)) == DI_NODE_NIL) {
410 topo_mod_dprintf(mod, "devinfo init failed.");
411 return (NULL);
412 }
413 dnode = di_drv_first_node(CPUBOARD_PX_DRV, devtree);
414 while (dnode != DI_NODE_NIL) {
415 char *path;
416
417 if ((path = di_devfs_path(dnode)) == NULL) {
418 topo_mod_dprintf(mod, "cpuboard_findrc: "
419 "NULL di_devfs_path.\n");
420 (void) topo_mod_seterrno(mod, ETOPO_PROP_NOENT);
421 return (NULL);
422 }
423 topo_mod_dprintf(mod, "cpuboard_findrc: "
424 "got px %d, node named: %s, path: %s\n",
425 di_instance(dnode), di_node_name(dnode), path);
426
427 if (strcmp(cpub_rcs[id], path) == 0) {
428 di_devfs_path_free(path);
429 return (dnode);
430 }
431
432 di_devfs_path_free(path);
433
434 dnode = di_drv_next_node(dnode);
435 }
436 return (NULL);
437 }
438
439 static void
cpuboard_free_pri_info(topo_mod_t * mod,cpuboard_contents_t cpuboard_list[],topo_instance_t min,topo_instance_t max)440 cpuboard_free_pri_info(topo_mod_t *mod, cpuboard_contents_t cpuboard_list[],
441 topo_instance_t min, topo_instance_t max)
442 {
443 int i;
444
445 for (i = min; i <= max; i++) {
446 if (cpuboard_list[i].present == 0)
447 continue;
448 if (cpuboard_list[i].sn != NULL)
449 topo_mod_strfree(mod, cpuboard_list[i].sn);
450 if (cpuboard_list[i].pn != NULL)
451 topo_mod_strfree(mod, cpuboard_list[i].pn);
452 }
453 }
454
455 /*ARGSUSED*/
456 static int
cpuboard_enum(topo_mod_t * mod,tnode_t * parent,const char * name,topo_instance_t min,topo_instance_t max,void * arg,void * notused)457 cpuboard_enum(topo_mod_t *mod, tnode_t *parent, const char *name,
458 topo_instance_t min, topo_instance_t max, void *arg, void *notused)
459 {
460 tnode_t *cpuboardn;
461 topo_instance_t i = 0;
462 cpuboard_contents_t cpuboard_list[CPUBOARD_MAX];
463
464 if (strcmp(name, CPUBOARD) != 0) {
465 topo_mod_dprintf(mod,
466 "Currently only know how to enumerate %s components.\n",
467 CPUBOARD);
468 return (-1);
469 }
470 /* Make sure we don't exceed CPUBOARD_MAX */
471 if (max >= CPUBOARD_MAX) {
472 max = CPUBOARD_MAX;
473 }
474
475 bzero(cpuboard_list, sizeof (cpuboard_list));
476
477 /* Scan PRI for cpu-boards. */
478 cpuboard_mod_hdl = mod;
479 if (cpuboard_get_pri_info(mod, cpuboard_list) == 0) {
480 int cpuboards_found = 0;
481 /*
482 * if no PRI available (i.e. not in Control Domain),
483 * use px driver to determine cpuboard presence.
484 * NOTE: with this approach there will be no
485 * identity information - no SN nor PN.
486 */
487 bzero(cpuboard_list, sizeof (cpuboard_list));
488 for (i = min; i <= max; i++) {
489 if (cpuboard_findrc(mod, i) != NULL) {
490 cpuboard_list[i].present = 1;
491 cpuboards_found++;
492 }
493 }
494 if (cpuboards_found == 0) {
495 topo_mod_dprintf(mod, "No cpuboards found.\n");
496 return (-1);
497 }
498 }
499
500 if (chip_enum_load(mod) == NULL) {
501 cpuboard_free_pri_info(mod, cpuboard_list, min, max);
502 return (-1);
503 }
504
505 for (i = min; i <= max; i++) {
506 if (cpuboard_list[i].present == 0)
507 continue;
508
509 cpuboardn = cpuboard_declare(parent, name, i,
510 NULL, mod, &cpuboard_list[i]);
511 if (cpuboardn == NULL) {
512 topo_mod_dprintf(mod,
513 "Enumeration of cpuboard failed: %s\n",
514 topo_strerror(topo_mod_errno(mod)));
515 cpuboard_free_pri_info(mod, cpuboard_list, min, max);
516 return (-1); /* mod_errno already set */
517 }
518 if (topo_node_range_create(mod, cpuboardn, CHIP, 0,
519 CHIP_MAX) < 0) {
520 topo_node_unbind(cpuboardn);
521 topo_mod_dprintf(mod, "topo_node_range_create CHIP "
522 "failed: %s\n", topo_strerror(topo_mod_errno(mod)));
523 cpuboard_free_pri_info(mod, cpuboard_list, min, max);
524 return (-1); /* mod_errno already set */
525 }
526 if (chip_instantiate(cpuboardn, CPUBOARD, mod, i) < 0) {
527 topo_mod_dprintf(mod, "Enumeration of chip "
528 "failed %s\n",
529 topo_strerror(topo_mod_errno(mod)));
530 cpuboard_free_pri_info(mod, cpuboard_list, min, max);
531 return (-1);
532 }
533 if (topo_node_range_create(mod, cpuboardn, HOSTBRIDGE, 0,
534 HOSTBRIDGE_MAX) < 0) {
535 topo_node_unbind(cpuboardn);
536 topo_mod_dprintf(mod, "topo_node_range_create: "
537 "HOSTBRIDGE failed: %s\n",
538 topo_strerror(topo_mod_errno(mod)));
539 cpuboard_free_pri_info(mod, cpuboard_list, min, max);
540 return (-1);
541 }
542 if (cpuboard_hb_enum(mod, cpuboard_findrc(mod, i), cpub_rcs[i],
543 cpuboardn, i) < 0) {
544 topo_node_unbind(cpuboardn);
545 topo_mod_dprintf(mod, "cpuboard_hb_enum: "
546 "failed: %s\n",
547 topo_strerror(topo_mod_errno(mod)));
548 cpuboard_free_pri_info(mod, cpuboard_list, min, max);
549 return (-1);
550 }
551 }
552 cpuboard_free_pri_info(mod, cpuboard_list, min, max);
553 return (0);
554 }
555