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fa42225a BB |
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 | |
1d3ba0bf | 9 | * or https://opensource.org/licenses/CDDL-1.0. |
fa42225a BB |
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 | /* | |
428870ff | 22 | * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. |
fa42225a BB |
23 | */ |
24 | ||
25 | /* | |
26 | * Fault Management Architecture (FMA) Resource and Protocol Support | |
27 | * | |
28 | * The routines contained herein provide services to support kernel subsystems | |
29 | * in publishing fault management telemetry (see PSARC 2002/412 and 2003/089). | |
30 | * | |
31 | * Name-Value Pair Lists | |
32 | * | |
33 | * The embodiment of an FMA protocol element (event, fmri or authority) is a | |
e1cfd73f | 34 | * name-value pair list (nvlist_t). FMA-specific nvlist constructor and |
fa42225a BB |
35 | * destructor functions, fm_nvlist_create() and fm_nvlist_destroy(), are used |
36 | * to create an nvpair list using custom allocators. Callers may choose to | |
37 | * allocate either from the kernel memory allocator, or from a preallocated | |
38 | * buffer, useful in constrained contexts like high-level interrupt routines. | |
39 | * | |
40 | * Protocol Event and FMRI Construction | |
41 | * | |
42 | * Convenience routines are provided to construct nvlist events according to | |
43 | * the FMA Event Protocol and Naming Schema specification for ereports and | |
44 | * FMRIs for the dev, cpu, hc, mem, legacy hc and de schemes. | |
45 | * | |
46 | * ENA Manipulation | |
47 | * | |
48 | * Routines to generate ENA formats 0, 1 and 2 are available as well as | |
49 | * routines to increment formats 1 and 2. Individual fields within the | |
50 | * ENA are extractable via fm_ena_time_get(), fm_ena_id_get(), | |
51 | * fm_ena_format_get() and fm_ena_gen_get(). | |
52 | */ | |
53 | ||
54 | #include <sys/types.h> | |
55 | #include <sys/time.h> | |
26685276 | 56 | #include <sys/list.h> |
fa42225a BB |
57 | #include <sys/nvpair.h> |
58 | #include <sys/cmn_err.h> | |
fa42225a | 59 | #include <sys/sysmacros.h> |
fa42225a BB |
60 | #include <sys/sunddi.h> |
61 | #include <sys/systeminfo.h> | |
fa42225a BB |
62 | #include <sys/fm/util.h> |
63 | #include <sys/fm/protocol.h> | |
26685276 BB |
64 | #include <sys/kstat.h> |
65 | #include <sys/zfs_context.h> | |
66 | #ifdef _KERNEL | |
67 | #include <sys/atomic.h> | |
68 | #include <sys/condvar.h> | |
26685276 | 69 | #include <sys/zfs_ioctl.h> |
fa42225a | 70 | |
fdc2d303 | 71 | static uint_t zfs_zevent_len_max = 512; |
fa42225a | 72 | |
fdc2d303 | 73 | static uint_t zevent_len_cur = 0; |
26685276 BB |
74 | static int zevent_waiters = 0; |
75 | static int zevent_flags = 0; | |
fa42225a | 76 | |
6078881a TH |
77 | /* Num events rate limited since the last time zfs_zevent_next() was called */ |
78 | static uint64_t ratelimit_dropped = 0; | |
79 | ||
a2f1945e BB |
80 | /* |
81 | * The EID (Event IDentifier) is used to uniquely tag a zevent when it is | |
82 | * posted. The posted EIDs are monotonically increasing but not persistent. | |
83 | * They will be reset to the initial value (1) each time the kernel module is | |
84 | * loaded. | |
85 | */ | |
86 | static uint64_t zevent_eid = 0; | |
87 | ||
26685276 BB |
88 | static kmutex_t zevent_lock; |
89 | static list_t zevent_list; | |
90 | static kcondvar_t zevent_cv; | |
91 | #endif /* _KERNEL */ | |
fa42225a | 92 | |
428870ff | 93 | |
fa42225a | 94 | /* |
26685276 | 95 | * Common fault management kstats to record event generation failures |
fa42225a BB |
96 | */ |
97 | ||
98 | struct erpt_kstat { | |
99 | kstat_named_t erpt_dropped; /* num erpts dropped on post */ | |
100 | kstat_named_t erpt_set_failed; /* num erpt set failures */ | |
101 | kstat_named_t fmri_set_failed; /* num fmri set failures */ | |
102 | kstat_named_t payload_set_failed; /* num payload set failures */ | |
4f072827 | 103 | kstat_named_t erpt_duplicates; /* num duplicate erpts */ |
fa42225a BB |
104 | }; |
105 | ||
106 | static struct erpt_kstat erpt_kstat_data = { | |
107 | { "erpt-dropped", KSTAT_DATA_UINT64 }, | |
108 | { "erpt-set-failed", KSTAT_DATA_UINT64 }, | |
109 | { "fmri-set-failed", KSTAT_DATA_UINT64 }, | |
4f072827 DB |
110 | { "payload-set-failed", KSTAT_DATA_UINT64 }, |
111 | { "erpt-duplicates", KSTAT_DATA_UINT64 } | |
fa42225a BB |
112 | }; |
113 | ||
26685276 | 114 | kstat_t *fm_ksp; |
fa42225a | 115 | |
26685276 | 116 | #ifdef _KERNEL |
fa42225a | 117 | |
26685276 BB |
118 | static zevent_t * |
119 | zfs_zevent_alloc(void) | |
120 | { | |
121 | zevent_t *ev; | |
122 | ||
79c76d5b | 123 | ev = kmem_zalloc(sizeof (zevent_t), KM_SLEEP); |
26685276 | 124 | |
d1d7e268 | 125 | list_create(&ev->ev_ze_list, sizeof (zfs_zevent_t), |
02730c33 | 126 | offsetof(zfs_zevent_t, ze_node)); |
26685276 BB |
127 | list_link_init(&ev->ev_node); |
128 | ||
d1d7e268 | 129 | return (ev); |
26685276 BB |
130 | } |
131 | ||
132 | static void | |
133 | zfs_zevent_free(zevent_t *ev) | |
134 | { | |
135 | /* Run provided cleanup callback */ | |
136 | ev->ev_cb(ev->ev_nvl, ev->ev_detector); | |
137 | ||
138 | list_destroy(&ev->ev_ze_list); | |
d1d7e268 | 139 | kmem_free(ev, sizeof (zevent_t)); |
26685276 BB |
140 | } |
141 | ||
142 | static void | |
143 | zfs_zevent_drain(zevent_t *ev) | |
144 | { | |
145 | zfs_zevent_t *ze; | |
146 | ||
147 | ASSERT(MUTEX_HELD(&zevent_lock)); | |
148 | list_remove(&zevent_list, ev); | |
149 | ||
150 | /* Remove references to this event in all private file data */ | |
b3ad3f48 | 151 | while ((ze = list_remove_head(&ev->ev_ze_list)) != NULL) { |
26685276 BB |
152 | ze->ze_zevent = NULL; |
153 | ze->ze_dropped++; | |
154 | } | |
155 | ||
156 | zfs_zevent_free(ev); | |
157 | } | |
158 | ||
fa42225a | 159 | void |
fdc2d303 | 160 | zfs_zevent_drain_all(uint_t *count) |
fa42225a | 161 | { |
26685276 | 162 | zevent_t *ev; |
fa42225a | 163 | |
26685276 BB |
164 | mutex_enter(&zevent_lock); |
165 | while ((ev = list_head(&zevent_list)) != NULL) | |
166 | zfs_zevent_drain(ev); | |
167 | ||
168 | *count = zevent_len_cur; | |
169 | zevent_len_cur = 0; | |
170 | mutex_exit(&zevent_lock); | |
fa42225a BB |
171 | } |
172 | ||
572e2857 | 173 | /* |
26685276 BB |
174 | * New zevents are inserted at the head. If the maximum queue |
175 | * length is exceeded a zevent will be drained from the tail. | |
176 | * As part of this any user space processes which currently have | |
177 | * a reference to this zevent_t in their private data will have | |
178 | * this reference set to NULL. | |
572e2857 | 179 | */ |
26685276 BB |
180 | static void |
181 | zfs_zevent_insert(zevent_t *ev) | |
572e2857 | 182 | { |
99db9bfd | 183 | ASSERT(MUTEX_HELD(&zevent_lock)); |
26685276 | 184 | list_insert_head(&zevent_list, ev); |
99db9bfd | 185 | |
c409e464 | 186 | if (zevent_len_cur >= zfs_zevent_len_max) |
26685276 | 187 | zfs_zevent_drain(list_tail(&zevent_list)); |
572e2857 | 188 | else |
26685276 | 189 | zevent_len_cur++; |
572e2857 BB |
190 | } |
191 | ||
fa42225a | 192 | /* |
0426c168 IH |
193 | * Post a zevent. The cb will be called when nvl and detector are no longer |
194 | * needed, i.e.: | |
195 | * - An error happened and a zevent can't be posted. In this case, cb is called | |
196 | * before zfs_zevent_post() returns. | |
197 | * - The event is being drained and freed. | |
fa42225a | 198 | */ |
0426c168 | 199 | int |
26685276 | 200 | zfs_zevent_post(nvlist_t *nvl, nvlist_t *detector, zevent_cb_t *cb) |
fa42225a | 201 | { |
6413c95f | 202 | inode_timespec_t tv; |
26685276 | 203 | int64_t tv_array[2]; |
a2f1945e | 204 | uint64_t eid; |
26685276 BB |
205 | size_t nvl_size = 0; |
206 | zevent_t *ev; | |
0426c168 IH |
207 | int error; |
208 | ||
209 | ASSERT(cb != NULL); | |
fa42225a | 210 | |
26685276 BB |
211 | gethrestime(&tv); |
212 | tv_array[0] = tv.tv_sec; | |
213 | tv_array[1] = tv.tv_nsec; | |
0426c168 IH |
214 | |
215 | error = nvlist_add_int64_array(nvl, FM_EREPORT_TIME, tv_array, 2); | |
216 | if (error) { | |
bc89ac84 | 217 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
0426c168 | 218 | goto out; |
26685276 | 219 | } |
fa42225a | 220 | |
a2f1945e | 221 | eid = atomic_inc_64_nv(&zevent_eid); |
0426c168 IH |
222 | error = nvlist_add_uint64(nvl, FM_EREPORT_EID, eid); |
223 | if (error) { | |
bc89ac84 | 224 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
0426c168 IH |
225 | goto out; |
226 | } | |
227 | ||
228 | error = nvlist_size(nvl, &nvl_size, NV_ENCODE_NATIVE); | |
229 | if (error) { | |
bc89ac84 | 230 | atomic_inc_64(&erpt_kstat_data.erpt_dropped.value.ui64); |
0426c168 | 231 | goto out; |
a2f1945e BB |
232 | } |
233 | ||
26685276 | 234 | if (nvl_size > ERPT_DATA_SZ || nvl_size == 0) { |
bc89ac84 | 235 | atomic_inc_64(&erpt_kstat_data.erpt_dropped.value.ui64); |
0426c168 IH |
236 | error = EOVERFLOW; |
237 | goto out; | |
fa42225a BB |
238 | } |
239 | ||
26685276 BB |
240 | ev = zfs_zevent_alloc(); |
241 | if (ev == NULL) { | |
bc89ac84 | 242 | atomic_inc_64(&erpt_kstat_data.erpt_dropped.value.ui64); |
0426c168 IH |
243 | error = ENOMEM; |
244 | goto out; | |
26685276 | 245 | } |
fa42225a | 246 | |
d1d7e268 | 247 | ev->ev_nvl = nvl; |
26685276 BB |
248 | ev->ev_detector = detector; |
249 | ev->ev_cb = cb; | |
a2f1945e | 250 | ev->ev_eid = eid; |
99db9bfd BB |
251 | |
252 | mutex_enter(&zevent_lock); | |
26685276 BB |
253 | zfs_zevent_insert(ev); |
254 | cv_broadcast(&zevent_cv); | |
99db9bfd | 255 | mutex_exit(&zevent_lock); |
0426c168 IH |
256 | |
257 | out: | |
258 | if (error) | |
259 | cb(nvl, detector); | |
260 | ||
261 | return (error); | |
26685276 | 262 | } |
fa42225a | 263 | |
4f072827 DB |
264 | void |
265 | zfs_zevent_track_duplicate(void) | |
266 | { | |
267 | atomic_inc_64(&erpt_kstat_data.erpt_duplicates.value.ui64); | |
268 | } | |
269 | ||
26685276 BB |
270 | static int |
271 | zfs_zevent_minor_to_state(minor_t minor, zfs_zevent_t **ze) | |
272 | { | |
273 | *ze = zfsdev_get_state(minor, ZST_ZEVENT); | |
274 | if (*ze == NULL) | |
ecb2b7dc | 275 | return (SET_ERROR(EBADF)); |
fa42225a | 276 | |
26685276 BB |
277 | return (0); |
278 | } | |
fa42225a | 279 | |
958826be | 280 | zfs_file_t * |
26685276 BB |
281 | zfs_zevent_fd_hold(int fd, minor_t *minorp, zfs_zevent_t **ze) |
282 | { | |
958826be GW |
283 | zfs_file_t *fp = zfs_file_get(fd); |
284 | if (fp == NULL) | |
285 | return (NULL); | |
26685276 | 286 | |
958826be | 287 | int error = zfsdev_getminor(fp, minorp); |
72540ea3 RY |
288 | if (error == 0) |
289 | error = zfs_zevent_minor_to_state(*minorp, ze); | |
26685276 | 290 | |
958826be GW |
291 | if (error) { |
292 | zfs_zevent_fd_rele(fp); | |
293 | fp = NULL; | |
294 | } | |
26685276 | 295 | |
958826be | 296 | return (fp); |
26685276 BB |
297 | } |
298 | ||
299 | void | |
958826be | 300 | zfs_zevent_fd_rele(zfs_file_t *fp) |
26685276 | 301 | { |
958826be | 302 | zfs_file_put(fp); |
fa42225a BB |
303 | } |
304 | ||
305 | /* | |
baa40d45 BB |
306 | * Get the next zevent in the stream and place a copy in 'event'. This |
307 | * may fail with ENOMEM if the encoded nvlist size exceeds the passed | |
308 | * 'event_size'. In this case the stream pointer is not advanced and | |
309 | * and 'event_size' is set to the minimum required buffer size. | |
fa42225a | 310 | */ |
26685276 | 311 | int |
baa40d45 | 312 | zfs_zevent_next(zfs_zevent_t *ze, nvlist_t **event, uint64_t *event_size, |
d1d7e268 | 313 | uint64_t *dropped) |
fa42225a | 314 | { |
26685276 | 315 | zevent_t *ev; |
baa40d45 BB |
316 | size_t size; |
317 | int error = 0; | |
26685276 BB |
318 | |
319 | mutex_enter(&zevent_lock); | |
320 | if (ze->ze_zevent == NULL) { | |
321 | /* New stream start at the beginning/tail */ | |
322 | ev = list_tail(&zevent_list); | |
323 | if (ev == NULL) { | |
324 | error = ENOENT; | |
325 | goto out; | |
326 | } | |
fa42225a | 327 | } else { |
d1d7e268 MK |
328 | /* |
329 | * Existing stream continue with the next element and remove | |
330 | * ourselves from the wait queue for the previous element | |
331 | */ | |
26685276 BB |
332 | ev = list_prev(&zevent_list, ze->ze_zevent); |
333 | if (ev == NULL) { | |
334 | error = ENOENT; | |
335 | goto out; | |
336 | } | |
baa40d45 | 337 | } |
26685276 | 338 | |
baa40d45 BB |
339 | VERIFY(nvlist_size(ev->ev_nvl, &size, NV_ENCODE_NATIVE) == 0); |
340 | if (size > *event_size) { | |
341 | *event_size = size; | |
342 | error = ENOMEM; | |
343 | goto out; | |
fa42225a BB |
344 | } |
345 | ||
baa40d45 BB |
346 | if (ze->ze_zevent) |
347 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
348 | ||
26685276 BB |
349 | ze->ze_zevent = ev; |
350 | list_insert_head(&ev->ev_ze_list, ze); | |
aecdc706 | 351 | (void) nvlist_dup(ev->ev_nvl, event, KM_SLEEP); |
26685276 | 352 | *dropped = ze->ze_dropped; |
6078881a TH |
353 | |
354 | #ifdef _KERNEL | |
355 | /* Include events dropped due to rate limiting */ | |
3ba10f9a | 356 | *dropped += atomic_swap_64(&ratelimit_dropped, 0); |
6078881a | 357 | #endif |
26685276 BB |
358 | ze->ze_dropped = 0; |
359 | out: | |
360 | mutex_exit(&zevent_lock); | |
fa42225a | 361 | |
d1d7e268 | 362 | return (error); |
26685276 BB |
363 | } |
364 | ||
d441e85d BB |
365 | /* |
366 | * Wait in an interruptible state for any new events. | |
367 | */ | |
26685276 BB |
368 | int |
369 | zfs_zevent_wait(zfs_zevent_t *ze) | |
370 | { | |
d441e85d | 371 | int error = EAGAIN; |
26685276 BB |
372 | |
373 | mutex_enter(&zevent_lock); | |
d441e85d | 374 | zevent_waiters++; |
fa42225a | 375 | |
d441e85d BB |
376 | while (error == EAGAIN) { |
377 | if (zevent_flags & ZEVENT_SHUTDOWN) { | |
378 | error = SET_ERROR(ESHUTDOWN); | |
379 | break; | |
380 | } | |
fa42225a | 381 | |
2e7f664f | 382 | if (cv_wait_sig(&zevent_cv, &zevent_lock) == 0) { |
d441e85d BB |
383 | error = SET_ERROR(EINTR); |
384 | break; | |
385 | } else if (!list_is_empty(&zevent_list)) { | |
386 | error = 0; | |
387 | continue; | |
388 | } else { | |
389 | error = EAGAIN; | |
390 | } | |
391 | } | |
26685276 BB |
392 | |
393 | zevent_waiters--; | |
26685276 BB |
394 | mutex_exit(&zevent_lock); |
395 | ||
d1d7e268 | 396 | return (error); |
fa42225a BB |
397 | } |
398 | ||
75e3ff58 BB |
399 | /* |
400 | * The caller may seek to a specific EID by passing that EID. If the EID | |
401 | * is still available in the posted list of events the cursor is positioned | |
402 | * there. Otherwise ENOENT is returned and the cursor is not moved. | |
403 | * | |
404 | * There are two reserved EIDs which may be passed and will never fail. | |
405 | * ZEVENT_SEEK_START positions the cursor at the start of the list, and | |
406 | * ZEVENT_SEEK_END positions the cursor at the end of the list. | |
407 | */ | |
408 | int | |
409 | zfs_zevent_seek(zfs_zevent_t *ze, uint64_t eid) | |
410 | { | |
411 | zevent_t *ev; | |
412 | int error = 0; | |
413 | ||
414 | mutex_enter(&zevent_lock); | |
415 | ||
416 | if (eid == ZEVENT_SEEK_START) { | |
417 | if (ze->ze_zevent) | |
418 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
419 | ||
420 | ze->ze_zevent = NULL; | |
421 | goto out; | |
422 | } | |
423 | ||
424 | if (eid == ZEVENT_SEEK_END) { | |
425 | if (ze->ze_zevent) | |
426 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
427 | ||
428 | ev = list_head(&zevent_list); | |
429 | if (ev) { | |
430 | ze->ze_zevent = ev; | |
431 | list_insert_head(&ev->ev_ze_list, ze); | |
432 | } else { | |
433 | ze->ze_zevent = NULL; | |
434 | } | |
435 | ||
436 | goto out; | |
437 | } | |
438 | ||
439 | for (ev = list_tail(&zevent_list); ev != NULL; | |
440 | ev = list_prev(&zevent_list, ev)) { | |
441 | if (ev->ev_eid == eid) { | |
442 | if (ze->ze_zevent) | |
443 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
444 | ||
445 | ze->ze_zevent = ev; | |
446 | list_insert_head(&ev->ev_ze_list, ze); | |
447 | break; | |
448 | } | |
449 | } | |
450 | ||
451 | if (ev == NULL) | |
452 | error = ENOENT; | |
453 | ||
454 | out: | |
455 | mutex_exit(&zevent_lock); | |
456 | ||
457 | return (error); | |
458 | } | |
459 | ||
fa42225a | 460 | void |
26685276 | 461 | zfs_zevent_init(zfs_zevent_t **zep) |
fa42225a | 462 | { |
26685276 | 463 | zfs_zevent_t *ze; |
fa42225a | 464 | |
26685276 BB |
465 | ze = *zep = kmem_zalloc(sizeof (zfs_zevent_t), KM_SLEEP); |
466 | list_link_init(&ze->ze_node); | |
467 | } | |
fa42225a | 468 | |
26685276 BB |
469 | void |
470 | zfs_zevent_destroy(zfs_zevent_t *ze) | |
471 | { | |
472 | mutex_enter(&zevent_lock); | |
473 | if (ze->ze_zevent) | |
474 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
475 | mutex_exit(&zevent_lock); | |
fa42225a | 476 | |
26685276 | 477 | kmem_free(ze, sizeof (zfs_zevent_t)); |
fa42225a | 478 | } |
26685276 | 479 | #endif /* _KERNEL */ |
fa42225a BB |
480 | |
481 | /* | |
e1cfd73f | 482 | * Wrappers for FM nvlist allocators |
fa42225a | 483 | */ |
fa42225a BB |
484 | static void * |
485 | i_fm_alloc(nv_alloc_t *nva, size_t size) | |
486 | { | |
14e4e3cb | 487 | (void) nva; |
673aa7e6 | 488 | return (kmem_alloc(size, KM_SLEEP)); |
fa42225a BB |
489 | } |
490 | ||
fa42225a BB |
491 | static void |
492 | i_fm_free(nv_alloc_t *nva, void *buf, size_t size) | |
493 | { | |
14e4e3cb | 494 | (void) nva; |
fa42225a BB |
495 | kmem_free(buf, size); |
496 | } | |
497 | ||
18168da7 | 498 | static const nv_alloc_ops_t fm_mem_alloc_ops = { |
56d8d8ac MW |
499 | .nv_ao_init = NULL, |
500 | .nv_ao_fini = NULL, | |
501 | .nv_ao_alloc = i_fm_alloc, | |
502 | .nv_ao_free = i_fm_free, | |
503 | .nv_ao_reset = NULL | |
fa42225a BB |
504 | }; |
505 | ||
506 | /* | |
507 | * Create and initialize a new nv_alloc_t for a fixed buffer, buf. A pointer | |
508 | * to the newly allocated nv_alloc_t structure is returned upon success or NULL | |
509 | * is returned to indicate that the nv_alloc structure could not be created. | |
510 | */ | |
511 | nv_alloc_t * | |
512 | fm_nva_xcreate(char *buf, size_t bufsz) | |
513 | { | |
514 | nv_alloc_t *nvhdl = kmem_zalloc(sizeof (nv_alloc_t), KM_SLEEP); | |
515 | ||
516 | if (bufsz == 0 || nv_alloc_init(nvhdl, nv_fixed_ops, buf, bufsz) != 0) { | |
517 | kmem_free(nvhdl, sizeof (nv_alloc_t)); | |
518 | return (NULL); | |
519 | } | |
520 | ||
521 | return (nvhdl); | |
522 | } | |
523 | ||
524 | /* | |
525 | * Destroy a previously allocated nv_alloc structure. The fixed buffer | |
526 | * associated with nva must be freed by the caller. | |
527 | */ | |
528 | void | |
529 | fm_nva_xdestroy(nv_alloc_t *nva) | |
530 | { | |
531 | nv_alloc_fini(nva); | |
532 | kmem_free(nva, sizeof (nv_alloc_t)); | |
533 | } | |
534 | ||
535 | /* | |
536 | * Create a new nv list. A pointer to a new nv list structure is returned | |
537 | * upon success or NULL is returned to indicate that the structure could | |
538 | * not be created. The newly created nv list is created and managed by the | |
539 | * operations installed in nva. If nva is NULL, the default FMA nva | |
540 | * operations are installed and used. | |
541 | * | |
542 | * When called from the kernel and nva == NULL, this function must be called | |
543 | * from passive kernel context with no locks held that can prevent a | |
544 | * sleeping memory allocation from occurring. Otherwise, this function may | |
545 | * be called from other kernel contexts as long a valid nva created via | |
546 | * fm_nva_create() is supplied. | |
547 | */ | |
548 | nvlist_t * | |
549 | fm_nvlist_create(nv_alloc_t *nva) | |
550 | { | |
551 | int hdl_alloced = 0; | |
552 | nvlist_t *nvl; | |
553 | nv_alloc_t *nvhdl; | |
554 | ||
555 | if (nva == NULL) { | |
79c76d5b | 556 | nvhdl = kmem_zalloc(sizeof (nv_alloc_t), KM_SLEEP); |
fa42225a BB |
557 | |
558 | if (nv_alloc_init(nvhdl, &fm_mem_alloc_ops, NULL, 0) != 0) { | |
559 | kmem_free(nvhdl, sizeof (nv_alloc_t)); | |
560 | return (NULL); | |
561 | } | |
562 | hdl_alloced = 1; | |
563 | } else { | |
564 | nvhdl = nva; | |
565 | } | |
566 | ||
567 | if (nvlist_xalloc(&nvl, NV_UNIQUE_NAME, nvhdl) != 0) { | |
568 | if (hdl_alloced) { | |
fa42225a | 569 | nv_alloc_fini(nvhdl); |
572e2857 | 570 | kmem_free(nvhdl, sizeof (nv_alloc_t)); |
fa42225a BB |
571 | } |
572 | return (NULL); | |
573 | } | |
574 | ||
575 | return (nvl); | |
576 | } | |
577 | ||
578 | /* | |
579 | * Destroy a previously allocated nvlist structure. flag indicates whether | |
580 | * or not the associated nva structure should be freed (FM_NVA_FREE) or | |
581 | * retained (FM_NVA_RETAIN). Retaining the nv alloc structure allows | |
582 | * it to be re-used for future nvlist creation operations. | |
583 | */ | |
584 | void | |
585 | fm_nvlist_destroy(nvlist_t *nvl, int flag) | |
586 | { | |
587 | nv_alloc_t *nva = nvlist_lookup_nv_alloc(nvl); | |
588 | ||
589 | nvlist_free(nvl); | |
590 | ||
591 | if (nva != NULL) { | |
592 | if (flag == FM_NVA_FREE) | |
593 | fm_nva_xdestroy(nva); | |
594 | } | |
595 | } | |
596 | ||
597 | int | |
598 | i_fm_payload_set(nvlist_t *payload, const char *name, va_list ap) | |
599 | { | |
600 | int nelem, ret = 0; | |
601 | data_type_t type; | |
602 | ||
603 | while (ret == 0 && name != NULL) { | |
604 | type = va_arg(ap, data_type_t); | |
605 | switch (type) { | |
606 | case DATA_TYPE_BYTE: | |
607 | ret = nvlist_add_byte(payload, name, | |
608 | va_arg(ap, uint_t)); | |
609 | break; | |
610 | case DATA_TYPE_BYTE_ARRAY: | |
611 | nelem = va_arg(ap, int); | |
612 | ret = nvlist_add_byte_array(payload, name, | |
613 | va_arg(ap, uchar_t *), nelem); | |
614 | break; | |
615 | case DATA_TYPE_BOOLEAN_VALUE: | |
616 | ret = nvlist_add_boolean_value(payload, name, | |
617 | va_arg(ap, boolean_t)); | |
618 | break; | |
619 | case DATA_TYPE_BOOLEAN_ARRAY: | |
620 | nelem = va_arg(ap, int); | |
621 | ret = nvlist_add_boolean_array(payload, name, | |
622 | va_arg(ap, boolean_t *), nelem); | |
623 | break; | |
624 | case DATA_TYPE_INT8: | |
625 | ret = nvlist_add_int8(payload, name, | |
626 | va_arg(ap, int)); | |
627 | break; | |
628 | case DATA_TYPE_INT8_ARRAY: | |
629 | nelem = va_arg(ap, int); | |
630 | ret = nvlist_add_int8_array(payload, name, | |
631 | va_arg(ap, int8_t *), nelem); | |
632 | break; | |
633 | case DATA_TYPE_UINT8: | |
634 | ret = nvlist_add_uint8(payload, name, | |
635 | va_arg(ap, uint_t)); | |
636 | break; | |
637 | case DATA_TYPE_UINT8_ARRAY: | |
638 | nelem = va_arg(ap, int); | |
639 | ret = nvlist_add_uint8_array(payload, name, | |
640 | va_arg(ap, uint8_t *), nelem); | |
641 | break; | |
642 | case DATA_TYPE_INT16: | |
643 | ret = nvlist_add_int16(payload, name, | |
644 | va_arg(ap, int)); | |
645 | break; | |
646 | case DATA_TYPE_INT16_ARRAY: | |
647 | nelem = va_arg(ap, int); | |
648 | ret = nvlist_add_int16_array(payload, name, | |
649 | va_arg(ap, int16_t *), nelem); | |
650 | break; | |
651 | case DATA_TYPE_UINT16: | |
652 | ret = nvlist_add_uint16(payload, name, | |
653 | va_arg(ap, uint_t)); | |
654 | break; | |
655 | case DATA_TYPE_UINT16_ARRAY: | |
656 | nelem = va_arg(ap, int); | |
657 | ret = nvlist_add_uint16_array(payload, name, | |
658 | va_arg(ap, uint16_t *), nelem); | |
659 | break; | |
660 | case DATA_TYPE_INT32: | |
661 | ret = nvlist_add_int32(payload, name, | |
662 | va_arg(ap, int32_t)); | |
663 | break; | |
664 | case DATA_TYPE_INT32_ARRAY: | |
665 | nelem = va_arg(ap, int); | |
666 | ret = nvlist_add_int32_array(payload, name, | |
667 | va_arg(ap, int32_t *), nelem); | |
668 | break; | |
669 | case DATA_TYPE_UINT32: | |
670 | ret = nvlist_add_uint32(payload, name, | |
671 | va_arg(ap, uint32_t)); | |
672 | break; | |
673 | case DATA_TYPE_UINT32_ARRAY: | |
674 | nelem = va_arg(ap, int); | |
675 | ret = nvlist_add_uint32_array(payload, name, | |
676 | va_arg(ap, uint32_t *), nelem); | |
677 | break; | |
678 | case DATA_TYPE_INT64: | |
679 | ret = nvlist_add_int64(payload, name, | |
680 | va_arg(ap, int64_t)); | |
681 | break; | |
682 | case DATA_TYPE_INT64_ARRAY: | |
683 | nelem = va_arg(ap, int); | |
684 | ret = nvlist_add_int64_array(payload, name, | |
685 | va_arg(ap, int64_t *), nelem); | |
686 | break; | |
687 | case DATA_TYPE_UINT64: | |
688 | ret = nvlist_add_uint64(payload, name, | |
689 | va_arg(ap, uint64_t)); | |
690 | break; | |
691 | case DATA_TYPE_UINT64_ARRAY: | |
692 | nelem = va_arg(ap, int); | |
693 | ret = nvlist_add_uint64_array(payload, name, | |
694 | va_arg(ap, uint64_t *), nelem); | |
695 | break; | |
696 | case DATA_TYPE_STRING: | |
697 | ret = nvlist_add_string(payload, name, | |
698 | va_arg(ap, char *)); | |
699 | break; | |
700 | case DATA_TYPE_STRING_ARRAY: | |
701 | nelem = va_arg(ap, int); | |
702 | ret = nvlist_add_string_array(payload, name, | |
795075e6 | 703 | va_arg(ap, const char **), nelem); |
fa42225a BB |
704 | break; |
705 | case DATA_TYPE_NVLIST: | |
706 | ret = nvlist_add_nvlist(payload, name, | |
707 | va_arg(ap, nvlist_t *)); | |
708 | break; | |
709 | case DATA_TYPE_NVLIST_ARRAY: | |
710 | nelem = va_arg(ap, int); | |
711 | ret = nvlist_add_nvlist_array(payload, name, | |
795075e6 | 712 | va_arg(ap, const nvlist_t **), nelem); |
fa42225a BB |
713 | break; |
714 | default: | |
715 | ret = EINVAL; | |
716 | } | |
717 | ||
718 | name = va_arg(ap, char *); | |
719 | } | |
720 | return (ret); | |
721 | } | |
722 | ||
723 | void | |
724 | fm_payload_set(nvlist_t *payload, ...) | |
725 | { | |
726 | int ret; | |
727 | const char *name; | |
728 | va_list ap; | |
729 | ||
730 | va_start(ap, payload); | |
731 | name = va_arg(ap, char *); | |
732 | ret = i_fm_payload_set(payload, name, ap); | |
733 | va_end(ap); | |
734 | ||
735 | if (ret) | |
bc89ac84 | 736 | atomic_inc_64(&erpt_kstat_data.payload_set_failed.value.ui64); |
fa42225a BB |
737 | } |
738 | ||
739 | /* | |
740 | * Set-up and validate the members of an ereport event according to: | |
741 | * | |
742 | * Member name Type Value | |
743 | * ==================================================== | |
744 | * class string ereport | |
745 | * version uint8_t 0 | |
746 | * ena uint64_t <ena> | |
747 | * detector nvlist_t <detector> | |
748 | * ereport-payload nvlist_t <var args> | |
749 | * | |
428870ff BB |
750 | * We don't actually add a 'version' member to the payload. Really, |
751 | * the version quoted to us by our caller is that of the category 1 | |
752 | * "ereport" event class (and we require FM_EREPORT_VERS0) but | |
753 | * the payload version of the actual leaf class event under construction | |
754 | * may be something else. Callers should supply a version in the varargs, | |
755 | * or (better) we could take two version arguments - one for the | |
756 | * ereport category 1 classification (expect FM_EREPORT_VERS0) and one | |
757 | * for the leaf class. | |
fa42225a BB |
758 | */ |
759 | void | |
760 | fm_ereport_set(nvlist_t *ereport, int version, const char *erpt_class, | |
761 | uint64_t ena, const nvlist_t *detector, ...) | |
762 | { | |
763 | char ereport_class[FM_MAX_CLASS]; | |
764 | const char *name; | |
765 | va_list ap; | |
766 | int ret; | |
767 | ||
768 | if (version != FM_EREPORT_VERS0) { | |
bc89ac84 | 769 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
fa42225a BB |
770 | return; |
771 | } | |
772 | ||
773 | (void) snprintf(ereport_class, FM_MAX_CLASS, "%s.%s", | |
774 | FM_EREPORT_CLASS, erpt_class); | |
775 | if (nvlist_add_string(ereport, FM_CLASS, ereport_class) != 0) { | |
bc89ac84 | 776 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
fa42225a BB |
777 | return; |
778 | } | |
779 | ||
780 | if (nvlist_add_uint64(ereport, FM_EREPORT_ENA, ena)) { | |
bc89ac84 | 781 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
fa42225a BB |
782 | } |
783 | ||
784 | if (nvlist_add_nvlist(ereport, FM_EREPORT_DETECTOR, | |
785 | (nvlist_t *)detector) != 0) { | |
bc89ac84 | 786 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
fa42225a BB |
787 | } |
788 | ||
789 | va_start(ap, detector); | |
790 | name = va_arg(ap, const char *); | |
791 | ret = i_fm_payload_set(ereport, name, ap); | |
792 | va_end(ap); | |
793 | ||
794 | if (ret) | |
bc89ac84 | 795 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
fa42225a BB |
796 | } |
797 | ||
798 | /* | |
799 | * Set-up and validate the members of an hc fmri according to; | |
800 | * | |
801 | * Member name Type Value | |
802 | * =================================================== | |
803 | * version uint8_t 0 | |
804 | * auth nvlist_t <auth> | |
805 | * hc-name string <name> | |
806 | * hc-id string <id> | |
807 | * | |
808 | * Note that auth and hc-id are optional members. | |
809 | */ | |
810 | ||
811 | #define HC_MAXPAIRS 20 | |
812 | #define HC_MAXNAMELEN 50 | |
813 | ||
814 | static int | |
815 | fm_fmri_hc_set_common(nvlist_t *fmri, int version, const nvlist_t *auth) | |
816 | { | |
817 | if (version != FM_HC_SCHEME_VERSION) { | |
bc89ac84 | 818 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
819 | return (0); |
820 | } | |
821 | ||
822 | if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0 || | |
823 | nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_HC) != 0) { | |
bc89ac84 | 824 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
825 | return (0); |
826 | } | |
827 | ||
828 | if (auth != NULL && nvlist_add_nvlist(fmri, FM_FMRI_AUTHORITY, | |
829 | (nvlist_t *)auth) != 0) { | |
bc89ac84 | 830 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
831 | return (0); |
832 | } | |
833 | ||
834 | return (1); | |
835 | } | |
836 | ||
837 | void | |
838 | fm_fmri_hc_set(nvlist_t *fmri, int version, const nvlist_t *auth, | |
839 | nvlist_t *snvl, int npairs, ...) | |
840 | { | |
841 | nv_alloc_t *nva = nvlist_lookup_nv_alloc(fmri); | |
842 | nvlist_t *pairs[HC_MAXPAIRS]; | |
843 | va_list ap; | |
844 | int i; | |
845 | ||
846 | if (!fm_fmri_hc_set_common(fmri, version, auth)) | |
847 | return; | |
848 | ||
849 | npairs = MIN(npairs, HC_MAXPAIRS); | |
850 | ||
851 | va_start(ap, npairs); | |
852 | for (i = 0; i < npairs; i++) { | |
853 | const char *name = va_arg(ap, const char *); | |
854 | uint32_t id = va_arg(ap, uint32_t); | |
855 | char idstr[11]; | |
856 | ||
857 | (void) snprintf(idstr, sizeof (idstr), "%u", id); | |
858 | ||
859 | pairs[i] = fm_nvlist_create(nva); | |
860 | if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, name) != 0 || | |
861 | nvlist_add_string(pairs[i], FM_FMRI_HC_ID, idstr) != 0) { | |
bc89ac84 JJS |
862 | atomic_inc_64( |
863 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
fa42225a BB |
864 | } |
865 | } | |
866 | va_end(ap); | |
867 | ||
795075e6 PD |
868 | if (nvlist_add_nvlist_array(fmri, FM_FMRI_HC_LIST, |
869 | (const nvlist_t **)pairs, npairs) != 0) { | |
bc89ac84 | 870 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
795075e6 | 871 | } |
fa42225a BB |
872 | |
873 | for (i = 0; i < npairs; i++) | |
874 | fm_nvlist_destroy(pairs[i], FM_NVA_RETAIN); | |
875 | ||
876 | if (snvl != NULL) { | |
877 | if (nvlist_add_nvlist(fmri, FM_FMRI_HC_SPECIFIC, snvl) != 0) { | |
bc89ac84 JJS |
878 | atomic_inc_64( |
879 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
fa42225a BB |
880 | } |
881 | } | |
882 | } | |
883 | ||
26685276 BB |
884 | void |
885 | fm_fmri_hc_create(nvlist_t *fmri, int version, const nvlist_t *auth, | |
886 | nvlist_t *snvl, nvlist_t *bboard, int npairs, ...) | |
887 | { | |
888 | nv_alloc_t *nva = nvlist_lookup_nv_alloc(fmri); | |
889 | nvlist_t *pairs[HC_MAXPAIRS]; | |
890 | nvlist_t **hcl; | |
891 | uint_t n; | |
892 | int i, j; | |
893 | va_list ap; | |
d1807f16 | 894 | const char *hcname, *hcid; |
26685276 BB |
895 | |
896 | if (!fm_fmri_hc_set_common(fmri, version, auth)) | |
897 | return; | |
898 | ||
899 | /* | |
900 | * copy the bboard nvpairs to the pairs array | |
901 | */ | |
902 | if (nvlist_lookup_nvlist_array(bboard, FM_FMRI_HC_LIST, &hcl, &n) | |
903 | != 0) { | |
bc89ac84 | 904 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
26685276 BB |
905 | return; |
906 | } | |
907 | ||
908 | for (i = 0; i < n; i++) { | |
909 | if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_NAME, | |
910 | &hcname) != 0) { | |
bc89ac84 JJS |
911 | atomic_inc_64( |
912 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
26685276 BB |
913 | return; |
914 | } | |
915 | if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_ID, &hcid) != 0) { | |
bc89ac84 JJS |
916 | atomic_inc_64( |
917 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
26685276 BB |
918 | return; |
919 | } | |
920 | ||
921 | pairs[i] = fm_nvlist_create(nva); | |
922 | if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, hcname) != 0 || | |
923 | nvlist_add_string(pairs[i], FM_FMRI_HC_ID, hcid) != 0) { | |
924 | for (j = 0; j <= i; j++) { | |
925 | if (pairs[j] != NULL) | |
926 | fm_nvlist_destroy(pairs[j], | |
927 | FM_NVA_RETAIN); | |
928 | } | |
bc89ac84 JJS |
929 | atomic_inc_64( |
930 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
26685276 BB |
931 | return; |
932 | } | |
933 | } | |
934 | ||
935 | /* | |
936 | * create the pairs from passed in pairs | |
937 | */ | |
938 | npairs = MIN(npairs, HC_MAXPAIRS); | |
939 | ||
940 | va_start(ap, npairs); | |
941 | for (i = n; i < npairs + n; i++) { | |
942 | const char *name = va_arg(ap, const char *); | |
943 | uint32_t id = va_arg(ap, uint32_t); | |
944 | char idstr[11]; | |
945 | (void) snprintf(idstr, sizeof (idstr), "%u", id); | |
946 | pairs[i] = fm_nvlist_create(nva); | |
947 | if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, name) != 0 || | |
948 | nvlist_add_string(pairs[i], FM_FMRI_HC_ID, idstr) != 0) { | |
949 | for (j = 0; j <= i; j++) { | |
950 | if (pairs[j] != NULL) | |
951 | fm_nvlist_destroy(pairs[j], | |
952 | FM_NVA_RETAIN); | |
953 | } | |
bc89ac84 JJS |
954 | atomic_inc_64( |
955 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
711b35dc | 956 | va_end(ap); |
26685276 BB |
957 | return; |
958 | } | |
959 | } | |
960 | va_end(ap); | |
961 | ||
962 | /* | |
963 | * Create the fmri hc list | |
964 | */ | |
795075e6 PD |
965 | if (nvlist_add_nvlist_array(fmri, FM_FMRI_HC_LIST, |
966 | (const nvlist_t **)pairs, npairs + n) != 0) { | |
bc89ac84 | 967 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
26685276 BB |
968 | return; |
969 | } | |
970 | ||
971 | for (i = 0; i < npairs + n; i++) { | |
972 | fm_nvlist_destroy(pairs[i], FM_NVA_RETAIN); | |
973 | } | |
974 | ||
975 | if (snvl != NULL) { | |
976 | if (nvlist_add_nvlist(fmri, FM_FMRI_HC_SPECIFIC, snvl) != 0) { | |
bc89ac84 JJS |
977 | atomic_inc_64( |
978 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
26685276 BB |
979 | return; |
980 | } | |
981 | } | |
982 | } | |
983 | ||
fa42225a BB |
984 | /* |
985 | * Set-up and validate the members of an dev fmri according to: | |
986 | * | |
987 | * Member name Type Value | |
988 | * ==================================================== | |
989 | * version uint8_t 0 | |
990 | * auth nvlist_t <auth> | |
991 | * devpath string <devpath> | |
428870ff BB |
992 | * [devid] string <devid> |
993 | * [target-port-l0id] string <target-port-lun0-id> | |
fa42225a BB |
994 | * |
995 | * Note that auth and devid are optional members. | |
996 | */ | |
997 | void | |
998 | fm_fmri_dev_set(nvlist_t *fmri_dev, int version, const nvlist_t *auth, | |
428870ff | 999 | const char *devpath, const char *devid, const char *tpl0) |
fa42225a | 1000 | { |
428870ff BB |
1001 | int err = 0; |
1002 | ||
fa42225a | 1003 | if (version != DEV_SCHEME_VERSION0) { |
bc89ac84 | 1004 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1005 | return; |
1006 | } | |
1007 | ||
428870ff BB |
1008 | err |= nvlist_add_uint8(fmri_dev, FM_VERSION, version); |
1009 | err |= nvlist_add_string(fmri_dev, FM_FMRI_SCHEME, FM_FMRI_SCHEME_DEV); | |
fa42225a BB |
1010 | |
1011 | if (auth != NULL) { | |
428870ff BB |
1012 | err |= nvlist_add_nvlist(fmri_dev, FM_FMRI_AUTHORITY, |
1013 | (nvlist_t *)auth); | |
fa42225a BB |
1014 | } |
1015 | ||
428870ff | 1016 | err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_PATH, devpath); |
fa42225a BB |
1017 | |
1018 | if (devid != NULL) | |
428870ff BB |
1019 | err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_ID, devid); |
1020 | ||
1021 | if (tpl0 != NULL) | |
1022 | err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_TGTPTLUN0, tpl0); | |
1023 | ||
1024 | if (err) | |
bc89ac84 | 1025 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
428870ff | 1026 | |
fa42225a BB |
1027 | } |
1028 | ||
1029 | /* | |
1030 | * Set-up and validate the members of an cpu fmri according to: | |
1031 | * | |
1032 | * Member name Type Value | |
1033 | * ==================================================== | |
1034 | * version uint8_t 0 | |
1035 | * auth nvlist_t <auth> | |
1036 | * cpuid uint32_t <cpu_id> | |
1037 | * cpumask uint8_t <cpu_mask> | |
1038 | * serial uint64_t <serial_id> | |
1039 | * | |
1040 | * Note that auth, cpumask, serial are optional members. | |
1041 | * | |
1042 | */ | |
1043 | void | |
1044 | fm_fmri_cpu_set(nvlist_t *fmri_cpu, int version, const nvlist_t *auth, | |
1045 | uint32_t cpu_id, uint8_t *cpu_maskp, const char *serial_idp) | |
1046 | { | |
1047 | uint64_t *failedp = &erpt_kstat_data.fmri_set_failed.value.ui64; | |
1048 | ||
1049 | if (version < CPU_SCHEME_VERSION1) { | |
bc89ac84 | 1050 | atomic_inc_64(failedp); |
fa42225a BB |
1051 | return; |
1052 | } | |
1053 | ||
1054 | if (nvlist_add_uint8(fmri_cpu, FM_VERSION, version) != 0) { | |
bc89ac84 | 1055 | atomic_inc_64(failedp); |
fa42225a BB |
1056 | return; |
1057 | } | |
1058 | ||
1059 | if (nvlist_add_string(fmri_cpu, FM_FMRI_SCHEME, | |
1060 | FM_FMRI_SCHEME_CPU) != 0) { | |
bc89ac84 | 1061 | atomic_inc_64(failedp); |
fa42225a BB |
1062 | return; |
1063 | } | |
1064 | ||
1065 | if (auth != NULL && nvlist_add_nvlist(fmri_cpu, FM_FMRI_AUTHORITY, | |
1066 | (nvlist_t *)auth) != 0) | |
bc89ac84 | 1067 | atomic_inc_64(failedp); |
fa42225a BB |
1068 | |
1069 | if (nvlist_add_uint32(fmri_cpu, FM_FMRI_CPU_ID, cpu_id) != 0) | |
bc89ac84 | 1070 | atomic_inc_64(failedp); |
fa42225a BB |
1071 | |
1072 | if (cpu_maskp != NULL && nvlist_add_uint8(fmri_cpu, FM_FMRI_CPU_MASK, | |
1073 | *cpu_maskp) != 0) | |
bc89ac84 | 1074 | atomic_inc_64(failedp); |
fa42225a BB |
1075 | |
1076 | if (serial_idp == NULL || nvlist_add_string(fmri_cpu, | |
1077 | FM_FMRI_CPU_SERIAL_ID, (char *)serial_idp) != 0) | |
bc89ac84 | 1078 | atomic_inc_64(failedp); |
fa42225a BB |
1079 | } |
1080 | ||
1081 | /* | |
1082 | * Set-up and validate the members of a mem according to: | |
1083 | * | |
1084 | * Member name Type Value | |
1085 | * ==================================================== | |
1086 | * version uint8_t 0 | |
1087 | * auth nvlist_t <auth> [optional] | |
1088 | * unum string <unum> | |
1089 | * serial string <serial> [optional*] | |
1090 | * offset uint64_t <offset> [optional] | |
1091 | * | |
1092 | * * serial is required if offset is present | |
1093 | */ | |
1094 | void | |
1095 | fm_fmri_mem_set(nvlist_t *fmri, int version, const nvlist_t *auth, | |
1096 | const char *unum, const char *serial, uint64_t offset) | |
1097 | { | |
1098 | if (version != MEM_SCHEME_VERSION0) { | |
bc89ac84 | 1099 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1100 | return; |
1101 | } | |
1102 | ||
1103 | if (!serial && (offset != (uint64_t)-1)) { | |
bc89ac84 | 1104 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1105 | return; |
1106 | } | |
1107 | ||
1108 | if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0) { | |
bc89ac84 | 1109 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1110 | return; |
1111 | } | |
1112 | ||
1113 | if (nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_MEM) != 0) { | |
bc89ac84 | 1114 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1115 | return; |
1116 | } | |
1117 | ||
1118 | if (auth != NULL) { | |
1119 | if (nvlist_add_nvlist(fmri, FM_FMRI_AUTHORITY, | |
1120 | (nvlist_t *)auth) != 0) { | |
bc89ac84 JJS |
1121 | atomic_inc_64( |
1122 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
fa42225a BB |
1123 | } |
1124 | } | |
1125 | ||
1126 | if (nvlist_add_string(fmri, FM_FMRI_MEM_UNUM, unum) != 0) { | |
bc89ac84 | 1127 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1128 | } |
1129 | ||
1130 | if (serial != NULL) { | |
1131 | if (nvlist_add_string_array(fmri, FM_FMRI_MEM_SERIAL_ID, | |
795075e6 | 1132 | (const char **)&serial, 1) != 0) { |
bc89ac84 JJS |
1133 | atomic_inc_64( |
1134 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
fa42225a | 1135 | } |
bc89ac84 JJS |
1136 | if (offset != (uint64_t)-1 && nvlist_add_uint64(fmri, |
1137 | FM_FMRI_MEM_OFFSET, offset) != 0) { | |
1138 | atomic_inc_64( | |
1139 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
fa42225a BB |
1140 | } |
1141 | } | |
1142 | } | |
1143 | ||
1144 | void | |
1145 | fm_fmri_zfs_set(nvlist_t *fmri, int version, uint64_t pool_guid, | |
1146 | uint64_t vdev_guid) | |
1147 | { | |
1148 | if (version != ZFS_SCHEME_VERSION0) { | |
bc89ac84 | 1149 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1150 | return; |
1151 | } | |
1152 | ||
1153 | if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0) { | |
bc89ac84 | 1154 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1155 | return; |
1156 | } | |
1157 | ||
1158 | if (nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_ZFS) != 0) { | |
bc89ac84 | 1159 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1160 | return; |
1161 | } | |
1162 | ||
1163 | if (nvlist_add_uint64(fmri, FM_FMRI_ZFS_POOL, pool_guid) != 0) { | |
bc89ac84 | 1164 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1165 | } |
1166 | ||
1167 | if (vdev_guid != 0) { | |
1168 | if (nvlist_add_uint64(fmri, FM_FMRI_ZFS_VDEV, vdev_guid) != 0) { | |
bc89ac84 JJS |
1169 | atomic_inc_64( |
1170 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
fa42225a BB |
1171 | } |
1172 | } | |
1173 | } | |
1174 | ||
1175 | uint64_t | |
1176 | fm_ena_increment(uint64_t ena) | |
1177 | { | |
1178 | uint64_t new_ena; | |
1179 | ||
1180 | switch (ENA_FORMAT(ena)) { | |
1181 | case FM_ENA_FMT1: | |
1182 | new_ena = ena + (1 << ENA_FMT1_GEN_SHFT); | |
1183 | break; | |
1184 | case FM_ENA_FMT2: | |
1185 | new_ena = ena + (1 << ENA_FMT2_GEN_SHFT); | |
1186 | break; | |
1187 | default: | |
1188 | new_ena = 0; | |
1189 | } | |
1190 | ||
1191 | return (new_ena); | |
1192 | } | |
1193 | ||
1194 | uint64_t | |
1195 | fm_ena_generate_cpu(uint64_t timestamp, processorid_t cpuid, uchar_t format) | |
1196 | { | |
1197 | uint64_t ena = 0; | |
1198 | ||
1199 | switch (format) { | |
1200 | case FM_ENA_FMT1: | |
1201 | if (timestamp) { | |
1202 | ena = (uint64_t)((format & ENA_FORMAT_MASK) | | |
1203 | ((cpuid << ENA_FMT1_CPUID_SHFT) & | |
1204 | ENA_FMT1_CPUID_MASK) | | |
1205 | ((timestamp << ENA_FMT1_TIME_SHFT) & | |
1206 | ENA_FMT1_TIME_MASK)); | |
1207 | } else { | |
1208 | ena = (uint64_t)((format & ENA_FORMAT_MASK) | | |
1209 | ((cpuid << ENA_FMT1_CPUID_SHFT) & | |
1210 | ENA_FMT1_CPUID_MASK) | | |
26685276 | 1211 | ((gethrtime() << ENA_FMT1_TIME_SHFT) & |
fa42225a BB |
1212 | ENA_FMT1_TIME_MASK)); |
1213 | } | |
1214 | break; | |
1215 | case FM_ENA_FMT2: | |
1216 | ena = (uint64_t)((format & ENA_FORMAT_MASK) | | |
1217 | ((timestamp << ENA_FMT2_TIME_SHFT) & ENA_FMT2_TIME_MASK)); | |
1218 | break; | |
1219 | default: | |
1220 | break; | |
1221 | } | |
1222 | ||
1223 | return (ena); | |
1224 | } | |
1225 | ||
1226 | uint64_t | |
1227 | fm_ena_generate(uint64_t timestamp, uchar_t format) | |
1228 | { | |
15a9e033 PS |
1229 | uint64_t ena; |
1230 | ||
1231 | kpreempt_disable(); | |
1232 | ena = fm_ena_generate_cpu(timestamp, getcpuid(), format); | |
1233 | kpreempt_enable(); | |
1234 | ||
1235 | return (ena); | |
fa42225a BB |
1236 | } |
1237 | ||
1238 | uint64_t | |
1239 | fm_ena_generation_get(uint64_t ena) | |
1240 | { | |
1241 | uint64_t gen; | |
1242 | ||
1243 | switch (ENA_FORMAT(ena)) { | |
1244 | case FM_ENA_FMT1: | |
1245 | gen = (ena & ENA_FMT1_GEN_MASK) >> ENA_FMT1_GEN_SHFT; | |
1246 | break; | |
1247 | case FM_ENA_FMT2: | |
1248 | gen = (ena & ENA_FMT2_GEN_MASK) >> ENA_FMT2_GEN_SHFT; | |
1249 | break; | |
1250 | default: | |
1251 | gen = 0; | |
1252 | break; | |
1253 | } | |
1254 | ||
1255 | return (gen); | |
1256 | } | |
1257 | ||
1258 | uchar_t | |
1259 | fm_ena_format_get(uint64_t ena) | |
1260 | { | |
1261 | ||
1262 | return (ENA_FORMAT(ena)); | |
1263 | } | |
1264 | ||
1265 | uint64_t | |
1266 | fm_ena_id_get(uint64_t ena) | |
1267 | { | |
1268 | uint64_t id; | |
1269 | ||
1270 | switch (ENA_FORMAT(ena)) { | |
1271 | case FM_ENA_FMT1: | |
1272 | id = (ena & ENA_FMT1_ID_MASK) >> ENA_FMT1_ID_SHFT; | |
1273 | break; | |
1274 | case FM_ENA_FMT2: | |
1275 | id = (ena & ENA_FMT2_ID_MASK) >> ENA_FMT2_ID_SHFT; | |
1276 | break; | |
1277 | default: | |
1278 | id = 0; | |
1279 | } | |
1280 | ||
1281 | return (id); | |
1282 | } | |
1283 | ||
1284 | uint64_t | |
1285 | fm_ena_time_get(uint64_t ena) | |
1286 | { | |
1287 | uint64_t time; | |
1288 | ||
1289 | switch (ENA_FORMAT(ena)) { | |
1290 | case FM_ENA_FMT1: | |
1291 | time = (ena & ENA_FMT1_TIME_MASK) >> ENA_FMT1_TIME_SHFT; | |
1292 | break; | |
1293 | case FM_ENA_FMT2: | |
1294 | time = (ena & ENA_FMT2_TIME_MASK) >> ENA_FMT2_TIME_SHFT; | |
1295 | break; | |
1296 | default: | |
1297 | time = 0; | |
1298 | } | |
1299 | ||
1300 | return (time); | |
1301 | } | |
1302 | ||
6078881a TH |
1303 | #ifdef _KERNEL |
1304 | /* | |
1305 | * Helper function to increment ereport dropped count. Used by the event | |
1306 | * rate limiting code to give feedback to the user about how many events were | |
1307 | * rate limited by including them in the 'dropped' count. | |
1308 | */ | |
1309 | void | |
1310 | fm_erpt_dropped_increment(void) | |
1311 | { | |
1312 | atomic_inc_64(&ratelimit_dropped); | |
1313 | } | |
6078881a | 1314 | |
fa42225a | 1315 | void |
26685276 | 1316 | fm_init(void) |
fa42225a | 1317 | { |
26685276 BB |
1318 | zevent_len_cur = 0; |
1319 | zevent_flags = 0; | |
fa42225a | 1320 | |
26685276 BB |
1321 | /* Initialize zevent allocation and generation kstats */ |
1322 | fm_ksp = kstat_create("zfs", 0, "fm", "misc", KSTAT_TYPE_NAMED, | |
1323 | sizeof (struct erpt_kstat) / sizeof (kstat_named_t), | |
1324 | KSTAT_FLAG_VIRTUAL); | |
1325 | ||
1326 | if (fm_ksp != NULL) { | |
1327 | fm_ksp->ks_data = &erpt_kstat_data; | |
1328 | kstat_install(fm_ksp); | |
1329 | } else { | |
1330 | cmn_err(CE_NOTE, "failed to create fm/misc kstat\n"); | |
1331 | } | |
1332 | ||
1333 | mutex_init(&zevent_lock, NULL, MUTEX_DEFAULT, NULL); | |
d1d7e268 MK |
1334 | list_create(&zevent_list, sizeof (zevent_t), |
1335 | offsetof(zevent_t, ev_node)); | |
26685276 | 1336 | cv_init(&zevent_cv, NULL, CV_DEFAULT, NULL); |
4f072827 DB |
1337 | |
1338 | zfs_ereport_init(); | |
fa42225a | 1339 | } |
428870ff BB |
1340 | |
1341 | void | |
26685276 | 1342 | fm_fini(void) |
428870ff | 1343 | { |
fdc2d303 | 1344 | uint_t count; |
428870ff | 1345 | |
4f072827 DB |
1346 | zfs_ereport_fini(); |
1347 | ||
26685276 | 1348 | zfs_zevent_drain_all(&count); |
428870ff | 1349 | |
26685276 | 1350 | mutex_enter(&zevent_lock); |
99db9bfd BB |
1351 | cv_broadcast(&zevent_cv); |
1352 | ||
26685276 BB |
1353 | zevent_flags |= ZEVENT_SHUTDOWN; |
1354 | while (zevent_waiters > 0) { | |
1355 | mutex_exit(&zevent_lock); | |
0e4c830b | 1356 | kpreempt(KPREEMPT_SYNC); |
26685276 | 1357 | mutex_enter(&zevent_lock); |
428870ff | 1358 | } |
26685276 | 1359 | mutex_exit(&zevent_lock); |
428870ff | 1360 | |
26685276 BB |
1361 | cv_destroy(&zevent_cv); |
1362 | list_destroy(&zevent_list); | |
1363 | mutex_destroy(&zevent_lock); | |
428870ff | 1364 | |
26685276 BB |
1365 | if (fm_ksp != NULL) { |
1366 | kstat_delete(fm_ksp); | |
1367 | fm_ksp = NULL; | |
428870ff | 1368 | } |
26685276 | 1369 | } |
5f087dda | 1370 | #endif /* _KERNEL */ |
428870ff | 1371 | |
fdc2d303 | 1372 | ZFS_MODULE_PARAM(zfs_zevent, zfs_zevent_, len_max, UINT, ZMOD_RW, |
5f087dda | 1373 | "Max event queue length"); |