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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 | |
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 | /* | |
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 | |
032a213e | 71 | int zfs_zevent_len_max = 512; |
fa42225a | 72 | |
26685276 BB |
73 | static int zevent_len_cur = 0; |
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 */ | |
151 | while ((ze = list_head(&ev->ev_ze_list)) != NULL) { | |
152 | list_remove(&ev->ev_ze_list, ze); | |
153 | ze->ze_zevent = NULL; | |
154 | ze->ze_dropped++; | |
155 | } | |
156 | ||
157 | zfs_zevent_free(ev); | |
158 | } | |
159 | ||
fa42225a | 160 | void |
26685276 | 161 | zfs_zevent_drain_all(int *count) |
fa42225a | 162 | { |
26685276 | 163 | zevent_t *ev; |
fa42225a | 164 | |
26685276 BB |
165 | mutex_enter(&zevent_lock); |
166 | while ((ev = list_head(&zevent_list)) != NULL) | |
167 | zfs_zevent_drain(ev); | |
168 | ||
169 | *count = zevent_len_cur; | |
170 | zevent_len_cur = 0; | |
171 | mutex_exit(&zevent_lock); | |
fa42225a BB |
172 | } |
173 | ||
572e2857 | 174 | /* |
26685276 BB |
175 | * New zevents are inserted at the head. If the maximum queue |
176 | * length is exceeded a zevent will be drained from the tail. | |
177 | * As part of this any user space processes which currently have | |
178 | * a reference to this zevent_t in their private data will have | |
179 | * this reference set to NULL. | |
572e2857 | 180 | */ |
26685276 BB |
181 | static void |
182 | zfs_zevent_insert(zevent_t *ev) | |
572e2857 | 183 | { |
99db9bfd | 184 | ASSERT(MUTEX_HELD(&zevent_lock)); |
26685276 | 185 | list_insert_head(&zevent_list, ev); |
99db9bfd | 186 | |
c409e464 | 187 | if (zevent_len_cur >= zfs_zevent_len_max) |
26685276 | 188 | zfs_zevent_drain(list_tail(&zevent_list)); |
572e2857 | 189 | else |
26685276 | 190 | zevent_len_cur++; |
572e2857 BB |
191 | } |
192 | ||
fa42225a | 193 | /* |
0426c168 IH |
194 | * Post a zevent. The cb will be called when nvl and detector are no longer |
195 | * needed, i.e.: | |
196 | * - An error happened and a zevent can't be posted. In this case, cb is called | |
197 | * before zfs_zevent_post() returns. | |
198 | * - The event is being drained and freed. | |
fa42225a | 199 | */ |
0426c168 | 200 | int |
26685276 | 201 | zfs_zevent_post(nvlist_t *nvl, nvlist_t *detector, zevent_cb_t *cb) |
fa42225a | 202 | { |
6413c95f | 203 | inode_timespec_t tv; |
26685276 | 204 | int64_t tv_array[2]; |
a2f1945e | 205 | uint64_t eid; |
26685276 BB |
206 | size_t nvl_size = 0; |
207 | zevent_t *ev; | |
0426c168 IH |
208 | int error; |
209 | ||
210 | ASSERT(cb != NULL); | |
fa42225a | 211 | |
26685276 BB |
212 | gethrestime(&tv); |
213 | tv_array[0] = tv.tv_sec; | |
214 | tv_array[1] = tv.tv_nsec; | |
0426c168 IH |
215 | |
216 | error = nvlist_add_int64_array(nvl, FM_EREPORT_TIME, tv_array, 2); | |
217 | if (error) { | |
bc89ac84 | 218 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
0426c168 | 219 | goto out; |
26685276 | 220 | } |
fa42225a | 221 | |
a2f1945e | 222 | eid = atomic_inc_64_nv(&zevent_eid); |
0426c168 IH |
223 | error = nvlist_add_uint64(nvl, FM_EREPORT_EID, eid); |
224 | if (error) { | |
bc89ac84 | 225 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
0426c168 IH |
226 | goto out; |
227 | } | |
228 | ||
229 | error = nvlist_size(nvl, &nvl_size, NV_ENCODE_NATIVE); | |
230 | if (error) { | |
bc89ac84 | 231 | atomic_inc_64(&erpt_kstat_data.erpt_dropped.value.ui64); |
0426c168 | 232 | goto out; |
a2f1945e BB |
233 | } |
234 | ||
26685276 | 235 | if (nvl_size > ERPT_DATA_SZ || nvl_size == 0) { |
bc89ac84 | 236 | atomic_inc_64(&erpt_kstat_data.erpt_dropped.value.ui64); |
0426c168 IH |
237 | error = EOVERFLOW; |
238 | goto out; | |
fa42225a BB |
239 | } |
240 | ||
26685276 BB |
241 | ev = zfs_zevent_alloc(); |
242 | if (ev == NULL) { | |
bc89ac84 | 243 | atomic_inc_64(&erpt_kstat_data.erpt_dropped.value.ui64); |
0426c168 IH |
244 | error = ENOMEM; |
245 | goto out; | |
26685276 | 246 | } |
fa42225a | 247 | |
d1d7e268 | 248 | ev->ev_nvl = nvl; |
26685276 BB |
249 | ev->ev_detector = detector; |
250 | ev->ev_cb = cb; | |
a2f1945e | 251 | ev->ev_eid = eid; |
99db9bfd BB |
252 | |
253 | mutex_enter(&zevent_lock); | |
26685276 BB |
254 | zfs_zevent_insert(ev); |
255 | cv_broadcast(&zevent_cv); | |
99db9bfd | 256 | mutex_exit(&zevent_lock); |
0426c168 IH |
257 | |
258 | out: | |
259 | if (error) | |
260 | cb(nvl, detector); | |
261 | ||
262 | return (error); | |
26685276 | 263 | } |
fa42225a | 264 | |
4f072827 DB |
265 | void |
266 | zfs_zevent_track_duplicate(void) | |
267 | { | |
268 | atomic_inc_64(&erpt_kstat_data.erpt_duplicates.value.ui64); | |
269 | } | |
270 | ||
26685276 BB |
271 | static int |
272 | zfs_zevent_minor_to_state(minor_t minor, zfs_zevent_t **ze) | |
273 | { | |
274 | *ze = zfsdev_get_state(minor, ZST_ZEVENT); | |
275 | if (*ze == NULL) | |
ecb2b7dc | 276 | return (SET_ERROR(EBADF)); |
fa42225a | 277 | |
26685276 BB |
278 | return (0); |
279 | } | |
fa42225a | 280 | |
958826be | 281 | zfs_file_t * |
26685276 BB |
282 | zfs_zevent_fd_hold(int fd, minor_t *minorp, zfs_zevent_t **ze) |
283 | { | |
958826be GW |
284 | zfs_file_t *fp = zfs_file_get(fd); |
285 | if (fp == NULL) | |
286 | return (NULL); | |
26685276 | 287 | |
958826be | 288 | int error = zfsdev_getminor(fp, minorp); |
72540ea3 RY |
289 | if (error == 0) |
290 | error = zfs_zevent_minor_to_state(*minorp, ze); | |
26685276 | 291 | |
958826be GW |
292 | if (error) { |
293 | zfs_zevent_fd_rele(fp); | |
294 | fp = NULL; | |
295 | } | |
26685276 | 296 | |
958826be | 297 | return (fp); |
26685276 BB |
298 | } |
299 | ||
300 | void | |
958826be | 301 | zfs_zevent_fd_rele(zfs_file_t *fp) |
26685276 | 302 | { |
958826be | 303 | zfs_file_put(fp); |
fa42225a BB |
304 | } |
305 | ||
306 | /* | |
baa40d45 BB |
307 | * Get the next zevent in the stream and place a copy in 'event'. This |
308 | * may fail with ENOMEM if the encoded nvlist size exceeds the passed | |
309 | * 'event_size'. In this case the stream pointer is not advanced and | |
310 | * and 'event_size' is set to the minimum required buffer size. | |
fa42225a | 311 | */ |
26685276 | 312 | int |
baa40d45 | 313 | zfs_zevent_next(zfs_zevent_t *ze, nvlist_t **event, uint64_t *event_size, |
d1d7e268 | 314 | uint64_t *dropped) |
fa42225a | 315 | { |
26685276 | 316 | zevent_t *ev; |
baa40d45 BB |
317 | size_t size; |
318 | int error = 0; | |
26685276 BB |
319 | |
320 | mutex_enter(&zevent_lock); | |
321 | if (ze->ze_zevent == NULL) { | |
322 | /* New stream start at the beginning/tail */ | |
323 | ev = list_tail(&zevent_list); | |
324 | if (ev == NULL) { | |
325 | error = ENOENT; | |
326 | goto out; | |
327 | } | |
fa42225a | 328 | } else { |
d1d7e268 MK |
329 | /* |
330 | * Existing stream continue with the next element and remove | |
331 | * ourselves from the wait queue for the previous element | |
332 | */ | |
26685276 BB |
333 | ev = list_prev(&zevent_list, ze->ze_zevent); |
334 | if (ev == NULL) { | |
335 | error = ENOENT; | |
336 | goto out; | |
337 | } | |
baa40d45 | 338 | } |
26685276 | 339 | |
baa40d45 BB |
340 | VERIFY(nvlist_size(ev->ev_nvl, &size, NV_ENCODE_NATIVE) == 0); |
341 | if (size > *event_size) { | |
342 | *event_size = size; | |
343 | error = ENOMEM; | |
344 | goto out; | |
fa42225a BB |
345 | } |
346 | ||
baa40d45 BB |
347 | if (ze->ze_zevent) |
348 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
349 | ||
26685276 BB |
350 | ze->ze_zevent = ev; |
351 | list_insert_head(&ev->ev_ze_list, ze); | |
aecdc706 | 352 | (void) nvlist_dup(ev->ev_nvl, event, KM_SLEEP); |
26685276 | 353 | *dropped = ze->ze_dropped; |
6078881a TH |
354 | |
355 | #ifdef _KERNEL | |
356 | /* Include events dropped due to rate limiting */ | |
3ba10f9a | 357 | *dropped += atomic_swap_64(&ratelimit_dropped, 0); |
6078881a | 358 | #endif |
26685276 BB |
359 | ze->ze_dropped = 0; |
360 | out: | |
361 | mutex_exit(&zevent_lock); | |
fa42225a | 362 | |
d1d7e268 | 363 | return (error); |
26685276 BB |
364 | } |
365 | ||
d441e85d BB |
366 | /* |
367 | * Wait in an interruptible state for any new events. | |
368 | */ | |
26685276 BB |
369 | int |
370 | zfs_zevent_wait(zfs_zevent_t *ze) | |
371 | { | |
d441e85d | 372 | int error = EAGAIN; |
26685276 BB |
373 | |
374 | mutex_enter(&zevent_lock); | |
d441e85d | 375 | zevent_waiters++; |
fa42225a | 376 | |
d441e85d BB |
377 | while (error == EAGAIN) { |
378 | if (zevent_flags & ZEVENT_SHUTDOWN) { | |
379 | error = SET_ERROR(ESHUTDOWN); | |
380 | break; | |
381 | } | |
fa42225a | 382 | |
99e755d6 | 383 | error = cv_wait_sig(&zevent_cv, &zevent_lock); |
d441e85d BB |
384 | if (signal_pending(current)) { |
385 | error = SET_ERROR(EINTR); | |
386 | break; | |
387 | } else if (!list_is_empty(&zevent_list)) { | |
388 | error = 0; | |
389 | continue; | |
390 | } else { | |
391 | error = EAGAIN; | |
392 | } | |
393 | } | |
26685276 BB |
394 | |
395 | zevent_waiters--; | |
26685276 BB |
396 | mutex_exit(&zevent_lock); |
397 | ||
d1d7e268 | 398 | return (error); |
fa42225a BB |
399 | } |
400 | ||
75e3ff58 BB |
401 | /* |
402 | * The caller may seek to a specific EID by passing that EID. If the EID | |
403 | * is still available in the posted list of events the cursor is positioned | |
404 | * there. Otherwise ENOENT is returned and the cursor is not moved. | |
405 | * | |
406 | * There are two reserved EIDs which may be passed and will never fail. | |
407 | * ZEVENT_SEEK_START positions the cursor at the start of the list, and | |
408 | * ZEVENT_SEEK_END positions the cursor at the end of the list. | |
409 | */ | |
410 | int | |
411 | zfs_zevent_seek(zfs_zevent_t *ze, uint64_t eid) | |
412 | { | |
413 | zevent_t *ev; | |
414 | int error = 0; | |
415 | ||
416 | mutex_enter(&zevent_lock); | |
417 | ||
418 | if (eid == ZEVENT_SEEK_START) { | |
419 | if (ze->ze_zevent) | |
420 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
421 | ||
422 | ze->ze_zevent = NULL; | |
423 | goto out; | |
424 | } | |
425 | ||
426 | if (eid == ZEVENT_SEEK_END) { | |
427 | if (ze->ze_zevent) | |
428 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
429 | ||
430 | ev = list_head(&zevent_list); | |
431 | if (ev) { | |
432 | ze->ze_zevent = ev; | |
433 | list_insert_head(&ev->ev_ze_list, ze); | |
434 | } else { | |
435 | ze->ze_zevent = NULL; | |
436 | } | |
437 | ||
438 | goto out; | |
439 | } | |
440 | ||
441 | for (ev = list_tail(&zevent_list); ev != NULL; | |
442 | ev = list_prev(&zevent_list, ev)) { | |
443 | if (ev->ev_eid == eid) { | |
444 | if (ze->ze_zevent) | |
445 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
446 | ||
447 | ze->ze_zevent = ev; | |
448 | list_insert_head(&ev->ev_ze_list, ze); | |
449 | break; | |
450 | } | |
451 | } | |
452 | ||
453 | if (ev == NULL) | |
454 | error = ENOENT; | |
455 | ||
456 | out: | |
457 | mutex_exit(&zevent_lock); | |
458 | ||
459 | return (error); | |
460 | } | |
461 | ||
fa42225a | 462 | void |
26685276 | 463 | zfs_zevent_init(zfs_zevent_t **zep) |
fa42225a | 464 | { |
26685276 | 465 | zfs_zevent_t *ze; |
fa42225a | 466 | |
26685276 BB |
467 | ze = *zep = kmem_zalloc(sizeof (zfs_zevent_t), KM_SLEEP); |
468 | list_link_init(&ze->ze_node); | |
469 | } | |
fa42225a | 470 | |
26685276 BB |
471 | void |
472 | zfs_zevent_destroy(zfs_zevent_t *ze) | |
473 | { | |
474 | mutex_enter(&zevent_lock); | |
475 | if (ze->ze_zevent) | |
476 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
477 | mutex_exit(&zevent_lock); | |
fa42225a | 478 | |
26685276 | 479 | kmem_free(ze, sizeof (zfs_zevent_t)); |
fa42225a | 480 | } |
26685276 | 481 | #endif /* _KERNEL */ |
fa42225a BB |
482 | |
483 | /* | |
e1cfd73f | 484 | * Wrappers for FM nvlist allocators |
fa42225a BB |
485 | */ |
486 | /* ARGSUSED */ | |
487 | static void * | |
488 | i_fm_alloc(nv_alloc_t *nva, size_t size) | |
489 | { | |
79c76d5b | 490 | return (kmem_zalloc(size, KM_SLEEP)); |
fa42225a BB |
491 | } |
492 | ||
493 | /* ARGSUSED */ | |
494 | static void | |
495 | i_fm_free(nv_alloc_t *nva, void *buf, size_t size) | |
496 | { | |
497 | kmem_free(buf, size); | |
498 | } | |
499 | ||
500 | const nv_alloc_ops_t fm_mem_alloc_ops = { | |
56d8d8ac MW |
501 | .nv_ao_init = NULL, |
502 | .nv_ao_fini = NULL, | |
503 | .nv_ao_alloc = i_fm_alloc, | |
504 | .nv_ao_free = i_fm_free, | |
505 | .nv_ao_reset = NULL | |
fa42225a BB |
506 | }; |
507 | ||
508 | /* | |
509 | * Create and initialize a new nv_alloc_t for a fixed buffer, buf. A pointer | |
510 | * to the newly allocated nv_alloc_t structure is returned upon success or NULL | |
511 | * is returned to indicate that the nv_alloc structure could not be created. | |
512 | */ | |
513 | nv_alloc_t * | |
514 | fm_nva_xcreate(char *buf, size_t bufsz) | |
515 | { | |
516 | nv_alloc_t *nvhdl = kmem_zalloc(sizeof (nv_alloc_t), KM_SLEEP); | |
517 | ||
518 | if (bufsz == 0 || nv_alloc_init(nvhdl, nv_fixed_ops, buf, bufsz) != 0) { | |
519 | kmem_free(nvhdl, sizeof (nv_alloc_t)); | |
520 | return (NULL); | |
521 | } | |
522 | ||
523 | return (nvhdl); | |
524 | } | |
525 | ||
526 | /* | |
527 | * Destroy a previously allocated nv_alloc structure. The fixed buffer | |
528 | * associated with nva must be freed by the caller. | |
529 | */ | |
530 | void | |
531 | fm_nva_xdestroy(nv_alloc_t *nva) | |
532 | { | |
533 | nv_alloc_fini(nva); | |
534 | kmem_free(nva, sizeof (nv_alloc_t)); | |
535 | } | |
536 | ||
537 | /* | |
538 | * Create a new nv list. A pointer to a new nv list structure is returned | |
539 | * upon success or NULL is returned to indicate that the structure could | |
540 | * not be created. The newly created nv list is created and managed by the | |
541 | * operations installed in nva. If nva is NULL, the default FMA nva | |
542 | * operations are installed and used. | |
543 | * | |
544 | * When called from the kernel and nva == NULL, this function must be called | |
545 | * from passive kernel context with no locks held that can prevent a | |
546 | * sleeping memory allocation from occurring. Otherwise, this function may | |
547 | * be called from other kernel contexts as long a valid nva created via | |
548 | * fm_nva_create() is supplied. | |
549 | */ | |
550 | nvlist_t * | |
551 | fm_nvlist_create(nv_alloc_t *nva) | |
552 | { | |
553 | int hdl_alloced = 0; | |
554 | nvlist_t *nvl; | |
555 | nv_alloc_t *nvhdl; | |
556 | ||
557 | if (nva == NULL) { | |
79c76d5b | 558 | nvhdl = kmem_zalloc(sizeof (nv_alloc_t), KM_SLEEP); |
fa42225a BB |
559 | |
560 | if (nv_alloc_init(nvhdl, &fm_mem_alloc_ops, NULL, 0) != 0) { | |
561 | kmem_free(nvhdl, sizeof (nv_alloc_t)); | |
562 | return (NULL); | |
563 | } | |
564 | hdl_alloced = 1; | |
565 | } else { | |
566 | nvhdl = nva; | |
567 | } | |
568 | ||
569 | if (nvlist_xalloc(&nvl, NV_UNIQUE_NAME, nvhdl) != 0) { | |
570 | if (hdl_alloced) { | |
fa42225a | 571 | nv_alloc_fini(nvhdl); |
572e2857 | 572 | kmem_free(nvhdl, sizeof (nv_alloc_t)); |
fa42225a BB |
573 | } |
574 | return (NULL); | |
575 | } | |
576 | ||
577 | return (nvl); | |
578 | } | |
579 | ||
580 | /* | |
581 | * Destroy a previously allocated nvlist structure. flag indicates whether | |
582 | * or not the associated nva structure should be freed (FM_NVA_FREE) or | |
583 | * retained (FM_NVA_RETAIN). Retaining the nv alloc structure allows | |
584 | * it to be re-used for future nvlist creation operations. | |
585 | */ | |
586 | void | |
587 | fm_nvlist_destroy(nvlist_t *nvl, int flag) | |
588 | { | |
589 | nv_alloc_t *nva = nvlist_lookup_nv_alloc(nvl); | |
590 | ||
591 | nvlist_free(nvl); | |
592 | ||
593 | if (nva != NULL) { | |
594 | if (flag == FM_NVA_FREE) | |
595 | fm_nva_xdestroy(nva); | |
596 | } | |
597 | } | |
598 | ||
599 | int | |
600 | i_fm_payload_set(nvlist_t *payload, const char *name, va_list ap) | |
601 | { | |
602 | int nelem, ret = 0; | |
603 | data_type_t type; | |
604 | ||
605 | while (ret == 0 && name != NULL) { | |
606 | type = va_arg(ap, data_type_t); | |
607 | switch (type) { | |
608 | case DATA_TYPE_BYTE: | |
609 | ret = nvlist_add_byte(payload, name, | |
610 | va_arg(ap, uint_t)); | |
611 | break; | |
612 | case DATA_TYPE_BYTE_ARRAY: | |
613 | nelem = va_arg(ap, int); | |
614 | ret = nvlist_add_byte_array(payload, name, | |
615 | va_arg(ap, uchar_t *), nelem); | |
616 | break; | |
617 | case DATA_TYPE_BOOLEAN_VALUE: | |
618 | ret = nvlist_add_boolean_value(payload, name, | |
619 | va_arg(ap, boolean_t)); | |
620 | break; | |
621 | case DATA_TYPE_BOOLEAN_ARRAY: | |
622 | nelem = va_arg(ap, int); | |
623 | ret = nvlist_add_boolean_array(payload, name, | |
624 | va_arg(ap, boolean_t *), nelem); | |
625 | break; | |
626 | case DATA_TYPE_INT8: | |
627 | ret = nvlist_add_int8(payload, name, | |
628 | va_arg(ap, int)); | |
629 | break; | |
630 | case DATA_TYPE_INT8_ARRAY: | |
631 | nelem = va_arg(ap, int); | |
632 | ret = nvlist_add_int8_array(payload, name, | |
633 | va_arg(ap, int8_t *), nelem); | |
634 | break; | |
635 | case DATA_TYPE_UINT8: | |
636 | ret = nvlist_add_uint8(payload, name, | |
637 | va_arg(ap, uint_t)); | |
638 | break; | |
639 | case DATA_TYPE_UINT8_ARRAY: | |
640 | nelem = va_arg(ap, int); | |
641 | ret = nvlist_add_uint8_array(payload, name, | |
642 | va_arg(ap, uint8_t *), nelem); | |
643 | break; | |
644 | case DATA_TYPE_INT16: | |
645 | ret = nvlist_add_int16(payload, name, | |
646 | va_arg(ap, int)); | |
647 | break; | |
648 | case DATA_TYPE_INT16_ARRAY: | |
649 | nelem = va_arg(ap, int); | |
650 | ret = nvlist_add_int16_array(payload, name, | |
651 | va_arg(ap, int16_t *), nelem); | |
652 | break; | |
653 | case DATA_TYPE_UINT16: | |
654 | ret = nvlist_add_uint16(payload, name, | |
655 | va_arg(ap, uint_t)); | |
656 | break; | |
657 | case DATA_TYPE_UINT16_ARRAY: | |
658 | nelem = va_arg(ap, int); | |
659 | ret = nvlist_add_uint16_array(payload, name, | |
660 | va_arg(ap, uint16_t *), nelem); | |
661 | break; | |
662 | case DATA_TYPE_INT32: | |
663 | ret = nvlist_add_int32(payload, name, | |
664 | va_arg(ap, int32_t)); | |
665 | break; | |
666 | case DATA_TYPE_INT32_ARRAY: | |
667 | nelem = va_arg(ap, int); | |
668 | ret = nvlist_add_int32_array(payload, name, | |
669 | va_arg(ap, int32_t *), nelem); | |
670 | break; | |
671 | case DATA_TYPE_UINT32: | |
672 | ret = nvlist_add_uint32(payload, name, | |
673 | va_arg(ap, uint32_t)); | |
674 | break; | |
675 | case DATA_TYPE_UINT32_ARRAY: | |
676 | nelem = va_arg(ap, int); | |
677 | ret = nvlist_add_uint32_array(payload, name, | |
678 | va_arg(ap, uint32_t *), nelem); | |
679 | break; | |
680 | case DATA_TYPE_INT64: | |
681 | ret = nvlist_add_int64(payload, name, | |
682 | va_arg(ap, int64_t)); | |
683 | break; | |
684 | case DATA_TYPE_INT64_ARRAY: | |
685 | nelem = va_arg(ap, int); | |
686 | ret = nvlist_add_int64_array(payload, name, | |
687 | va_arg(ap, int64_t *), nelem); | |
688 | break; | |
689 | case DATA_TYPE_UINT64: | |
690 | ret = nvlist_add_uint64(payload, name, | |
691 | va_arg(ap, uint64_t)); | |
692 | break; | |
693 | case DATA_TYPE_UINT64_ARRAY: | |
694 | nelem = va_arg(ap, int); | |
695 | ret = nvlist_add_uint64_array(payload, name, | |
696 | va_arg(ap, uint64_t *), nelem); | |
697 | break; | |
698 | case DATA_TYPE_STRING: | |
699 | ret = nvlist_add_string(payload, name, | |
700 | va_arg(ap, char *)); | |
701 | break; | |
702 | case DATA_TYPE_STRING_ARRAY: | |
703 | nelem = va_arg(ap, int); | |
704 | ret = nvlist_add_string_array(payload, name, | |
795075e6 | 705 | va_arg(ap, const char **), nelem); |
fa42225a BB |
706 | break; |
707 | case DATA_TYPE_NVLIST: | |
708 | ret = nvlist_add_nvlist(payload, name, | |
709 | va_arg(ap, nvlist_t *)); | |
710 | break; | |
711 | case DATA_TYPE_NVLIST_ARRAY: | |
712 | nelem = va_arg(ap, int); | |
713 | ret = nvlist_add_nvlist_array(payload, name, | |
795075e6 | 714 | va_arg(ap, const nvlist_t **), nelem); |
fa42225a BB |
715 | break; |
716 | default: | |
717 | ret = EINVAL; | |
718 | } | |
719 | ||
720 | name = va_arg(ap, char *); | |
721 | } | |
722 | return (ret); | |
723 | } | |
724 | ||
725 | void | |
726 | fm_payload_set(nvlist_t *payload, ...) | |
727 | { | |
728 | int ret; | |
729 | const char *name; | |
730 | va_list ap; | |
731 | ||
732 | va_start(ap, payload); | |
733 | name = va_arg(ap, char *); | |
734 | ret = i_fm_payload_set(payload, name, ap); | |
735 | va_end(ap); | |
736 | ||
737 | if (ret) | |
bc89ac84 | 738 | atomic_inc_64(&erpt_kstat_data.payload_set_failed.value.ui64); |
fa42225a BB |
739 | } |
740 | ||
741 | /* | |
742 | * Set-up and validate the members of an ereport event according to: | |
743 | * | |
744 | * Member name Type Value | |
745 | * ==================================================== | |
746 | * class string ereport | |
747 | * version uint8_t 0 | |
748 | * ena uint64_t <ena> | |
749 | * detector nvlist_t <detector> | |
750 | * ereport-payload nvlist_t <var args> | |
751 | * | |
428870ff BB |
752 | * We don't actually add a 'version' member to the payload. Really, |
753 | * the version quoted to us by our caller is that of the category 1 | |
754 | * "ereport" event class (and we require FM_EREPORT_VERS0) but | |
755 | * the payload version of the actual leaf class event under construction | |
756 | * may be something else. Callers should supply a version in the varargs, | |
757 | * or (better) we could take two version arguments - one for the | |
758 | * ereport category 1 classification (expect FM_EREPORT_VERS0) and one | |
759 | * for the leaf class. | |
fa42225a BB |
760 | */ |
761 | void | |
762 | fm_ereport_set(nvlist_t *ereport, int version, const char *erpt_class, | |
763 | uint64_t ena, const nvlist_t *detector, ...) | |
764 | { | |
765 | char ereport_class[FM_MAX_CLASS]; | |
766 | const char *name; | |
767 | va_list ap; | |
768 | int ret; | |
769 | ||
770 | if (version != FM_EREPORT_VERS0) { | |
bc89ac84 | 771 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
fa42225a BB |
772 | return; |
773 | } | |
774 | ||
775 | (void) snprintf(ereport_class, FM_MAX_CLASS, "%s.%s", | |
776 | FM_EREPORT_CLASS, erpt_class); | |
777 | if (nvlist_add_string(ereport, FM_CLASS, ereport_class) != 0) { | |
bc89ac84 | 778 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
fa42225a BB |
779 | return; |
780 | } | |
781 | ||
782 | if (nvlist_add_uint64(ereport, FM_EREPORT_ENA, ena)) { | |
bc89ac84 | 783 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
fa42225a BB |
784 | } |
785 | ||
786 | if (nvlist_add_nvlist(ereport, FM_EREPORT_DETECTOR, | |
787 | (nvlist_t *)detector) != 0) { | |
bc89ac84 | 788 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
fa42225a BB |
789 | } |
790 | ||
791 | va_start(ap, detector); | |
792 | name = va_arg(ap, const char *); | |
793 | ret = i_fm_payload_set(ereport, name, ap); | |
794 | va_end(ap); | |
795 | ||
796 | if (ret) | |
bc89ac84 | 797 | atomic_inc_64(&erpt_kstat_data.erpt_set_failed.value.ui64); |
fa42225a BB |
798 | } |
799 | ||
800 | /* | |
801 | * Set-up and validate the members of an hc fmri according to; | |
802 | * | |
803 | * Member name Type Value | |
804 | * =================================================== | |
805 | * version uint8_t 0 | |
806 | * auth nvlist_t <auth> | |
807 | * hc-name string <name> | |
808 | * hc-id string <id> | |
809 | * | |
810 | * Note that auth and hc-id are optional members. | |
811 | */ | |
812 | ||
813 | #define HC_MAXPAIRS 20 | |
814 | #define HC_MAXNAMELEN 50 | |
815 | ||
816 | static int | |
817 | fm_fmri_hc_set_common(nvlist_t *fmri, int version, const nvlist_t *auth) | |
818 | { | |
819 | if (version != FM_HC_SCHEME_VERSION) { | |
bc89ac84 | 820 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
821 | return (0); |
822 | } | |
823 | ||
824 | if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0 || | |
825 | nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_HC) != 0) { | |
bc89ac84 | 826 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
827 | return (0); |
828 | } | |
829 | ||
830 | if (auth != NULL && nvlist_add_nvlist(fmri, FM_FMRI_AUTHORITY, | |
831 | (nvlist_t *)auth) != 0) { | |
bc89ac84 | 832 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
833 | return (0); |
834 | } | |
835 | ||
836 | return (1); | |
837 | } | |
838 | ||
839 | void | |
840 | fm_fmri_hc_set(nvlist_t *fmri, int version, const nvlist_t *auth, | |
841 | nvlist_t *snvl, int npairs, ...) | |
842 | { | |
843 | nv_alloc_t *nva = nvlist_lookup_nv_alloc(fmri); | |
844 | nvlist_t *pairs[HC_MAXPAIRS]; | |
845 | va_list ap; | |
846 | int i; | |
847 | ||
848 | if (!fm_fmri_hc_set_common(fmri, version, auth)) | |
849 | return; | |
850 | ||
851 | npairs = MIN(npairs, HC_MAXPAIRS); | |
852 | ||
853 | va_start(ap, npairs); | |
854 | for (i = 0; i < npairs; i++) { | |
855 | const char *name = va_arg(ap, const char *); | |
856 | uint32_t id = va_arg(ap, uint32_t); | |
857 | char idstr[11]; | |
858 | ||
859 | (void) snprintf(idstr, sizeof (idstr), "%u", id); | |
860 | ||
861 | pairs[i] = fm_nvlist_create(nva); | |
862 | if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, name) != 0 || | |
863 | nvlist_add_string(pairs[i], FM_FMRI_HC_ID, idstr) != 0) { | |
bc89ac84 JJS |
864 | atomic_inc_64( |
865 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
fa42225a BB |
866 | } |
867 | } | |
868 | va_end(ap); | |
869 | ||
795075e6 PD |
870 | if (nvlist_add_nvlist_array(fmri, FM_FMRI_HC_LIST, |
871 | (const nvlist_t **)pairs, npairs) != 0) { | |
bc89ac84 | 872 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
795075e6 | 873 | } |
fa42225a BB |
874 | |
875 | for (i = 0; i < npairs; i++) | |
876 | fm_nvlist_destroy(pairs[i], FM_NVA_RETAIN); | |
877 | ||
878 | if (snvl != NULL) { | |
879 | if (nvlist_add_nvlist(fmri, FM_FMRI_HC_SPECIFIC, snvl) != 0) { | |
bc89ac84 JJS |
880 | atomic_inc_64( |
881 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
fa42225a BB |
882 | } |
883 | } | |
884 | } | |
885 | ||
26685276 BB |
886 | void |
887 | fm_fmri_hc_create(nvlist_t *fmri, int version, const nvlist_t *auth, | |
888 | nvlist_t *snvl, nvlist_t *bboard, int npairs, ...) | |
889 | { | |
890 | nv_alloc_t *nva = nvlist_lookup_nv_alloc(fmri); | |
891 | nvlist_t *pairs[HC_MAXPAIRS]; | |
892 | nvlist_t **hcl; | |
893 | uint_t n; | |
894 | int i, j; | |
895 | va_list ap; | |
896 | char *hcname, *hcid; | |
897 | ||
898 | if (!fm_fmri_hc_set_common(fmri, version, auth)) | |
899 | return; | |
900 | ||
901 | /* | |
902 | * copy the bboard nvpairs to the pairs array | |
903 | */ | |
904 | if (nvlist_lookup_nvlist_array(bboard, FM_FMRI_HC_LIST, &hcl, &n) | |
905 | != 0) { | |
bc89ac84 | 906 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
26685276 BB |
907 | return; |
908 | } | |
909 | ||
910 | for (i = 0; i < n; i++) { | |
911 | if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_NAME, | |
912 | &hcname) != 0) { | |
bc89ac84 JJS |
913 | atomic_inc_64( |
914 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
26685276 BB |
915 | return; |
916 | } | |
917 | if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_ID, &hcid) != 0) { | |
bc89ac84 JJS |
918 | atomic_inc_64( |
919 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
26685276 BB |
920 | return; |
921 | } | |
922 | ||
923 | pairs[i] = fm_nvlist_create(nva); | |
924 | if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, hcname) != 0 || | |
925 | nvlist_add_string(pairs[i], FM_FMRI_HC_ID, hcid) != 0) { | |
926 | for (j = 0; j <= i; j++) { | |
927 | if (pairs[j] != NULL) | |
928 | fm_nvlist_destroy(pairs[j], | |
929 | FM_NVA_RETAIN); | |
930 | } | |
bc89ac84 JJS |
931 | atomic_inc_64( |
932 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
26685276 BB |
933 | return; |
934 | } | |
935 | } | |
936 | ||
937 | /* | |
938 | * create the pairs from passed in pairs | |
939 | */ | |
940 | npairs = MIN(npairs, HC_MAXPAIRS); | |
941 | ||
942 | va_start(ap, npairs); | |
943 | for (i = n; i < npairs + n; i++) { | |
944 | const char *name = va_arg(ap, const char *); | |
945 | uint32_t id = va_arg(ap, uint32_t); | |
946 | char idstr[11]; | |
947 | (void) snprintf(idstr, sizeof (idstr), "%u", id); | |
948 | pairs[i] = fm_nvlist_create(nva); | |
949 | if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, name) != 0 || | |
950 | nvlist_add_string(pairs[i], FM_FMRI_HC_ID, idstr) != 0) { | |
951 | for (j = 0; j <= i; j++) { | |
952 | if (pairs[j] != NULL) | |
953 | fm_nvlist_destroy(pairs[j], | |
954 | FM_NVA_RETAIN); | |
955 | } | |
bc89ac84 JJS |
956 | atomic_inc_64( |
957 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
26685276 BB |
958 | return; |
959 | } | |
960 | } | |
961 | va_end(ap); | |
962 | ||
963 | /* | |
964 | * Create the fmri hc list | |
965 | */ | |
795075e6 PD |
966 | if (nvlist_add_nvlist_array(fmri, FM_FMRI_HC_LIST, |
967 | (const nvlist_t **)pairs, npairs + n) != 0) { | |
bc89ac84 | 968 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
26685276 BB |
969 | return; |
970 | } | |
971 | ||
972 | for (i = 0; i < npairs + n; i++) { | |
973 | fm_nvlist_destroy(pairs[i], FM_NVA_RETAIN); | |
974 | } | |
975 | ||
976 | if (snvl != NULL) { | |
977 | if (nvlist_add_nvlist(fmri, FM_FMRI_HC_SPECIFIC, snvl) != 0) { | |
bc89ac84 JJS |
978 | atomic_inc_64( |
979 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
26685276 BB |
980 | return; |
981 | } | |
982 | } | |
983 | } | |
984 | ||
fa42225a BB |
985 | /* |
986 | * Set-up and validate the members of an dev fmri according to: | |
987 | * | |
988 | * Member name Type Value | |
989 | * ==================================================== | |
990 | * version uint8_t 0 | |
991 | * auth nvlist_t <auth> | |
992 | * devpath string <devpath> | |
428870ff BB |
993 | * [devid] string <devid> |
994 | * [target-port-l0id] string <target-port-lun0-id> | |
fa42225a BB |
995 | * |
996 | * Note that auth and devid are optional members. | |
997 | */ | |
998 | void | |
999 | fm_fmri_dev_set(nvlist_t *fmri_dev, int version, const nvlist_t *auth, | |
428870ff | 1000 | const char *devpath, const char *devid, const char *tpl0) |
fa42225a | 1001 | { |
428870ff BB |
1002 | int err = 0; |
1003 | ||
fa42225a | 1004 | if (version != DEV_SCHEME_VERSION0) { |
bc89ac84 | 1005 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1006 | return; |
1007 | } | |
1008 | ||
428870ff BB |
1009 | err |= nvlist_add_uint8(fmri_dev, FM_VERSION, version); |
1010 | err |= nvlist_add_string(fmri_dev, FM_FMRI_SCHEME, FM_FMRI_SCHEME_DEV); | |
fa42225a BB |
1011 | |
1012 | if (auth != NULL) { | |
428870ff BB |
1013 | err |= nvlist_add_nvlist(fmri_dev, FM_FMRI_AUTHORITY, |
1014 | (nvlist_t *)auth); | |
fa42225a BB |
1015 | } |
1016 | ||
428870ff | 1017 | err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_PATH, devpath); |
fa42225a BB |
1018 | |
1019 | if (devid != NULL) | |
428870ff BB |
1020 | err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_ID, devid); |
1021 | ||
1022 | if (tpl0 != NULL) | |
1023 | err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_TGTPTLUN0, tpl0); | |
1024 | ||
1025 | if (err) | |
bc89ac84 | 1026 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
428870ff | 1027 | |
fa42225a BB |
1028 | } |
1029 | ||
1030 | /* | |
1031 | * Set-up and validate the members of an cpu fmri according to: | |
1032 | * | |
1033 | * Member name Type Value | |
1034 | * ==================================================== | |
1035 | * version uint8_t 0 | |
1036 | * auth nvlist_t <auth> | |
1037 | * cpuid uint32_t <cpu_id> | |
1038 | * cpumask uint8_t <cpu_mask> | |
1039 | * serial uint64_t <serial_id> | |
1040 | * | |
1041 | * Note that auth, cpumask, serial are optional members. | |
1042 | * | |
1043 | */ | |
1044 | void | |
1045 | fm_fmri_cpu_set(nvlist_t *fmri_cpu, int version, const nvlist_t *auth, | |
1046 | uint32_t cpu_id, uint8_t *cpu_maskp, const char *serial_idp) | |
1047 | { | |
1048 | uint64_t *failedp = &erpt_kstat_data.fmri_set_failed.value.ui64; | |
1049 | ||
1050 | if (version < CPU_SCHEME_VERSION1) { | |
bc89ac84 | 1051 | atomic_inc_64(failedp); |
fa42225a BB |
1052 | return; |
1053 | } | |
1054 | ||
1055 | if (nvlist_add_uint8(fmri_cpu, FM_VERSION, version) != 0) { | |
bc89ac84 | 1056 | atomic_inc_64(failedp); |
fa42225a BB |
1057 | return; |
1058 | } | |
1059 | ||
1060 | if (nvlist_add_string(fmri_cpu, FM_FMRI_SCHEME, | |
1061 | FM_FMRI_SCHEME_CPU) != 0) { | |
bc89ac84 | 1062 | atomic_inc_64(failedp); |
fa42225a BB |
1063 | return; |
1064 | } | |
1065 | ||
1066 | if (auth != NULL && nvlist_add_nvlist(fmri_cpu, FM_FMRI_AUTHORITY, | |
1067 | (nvlist_t *)auth) != 0) | |
bc89ac84 | 1068 | atomic_inc_64(failedp); |
fa42225a BB |
1069 | |
1070 | if (nvlist_add_uint32(fmri_cpu, FM_FMRI_CPU_ID, cpu_id) != 0) | |
bc89ac84 | 1071 | atomic_inc_64(failedp); |
fa42225a BB |
1072 | |
1073 | if (cpu_maskp != NULL && nvlist_add_uint8(fmri_cpu, FM_FMRI_CPU_MASK, | |
1074 | *cpu_maskp) != 0) | |
bc89ac84 | 1075 | atomic_inc_64(failedp); |
fa42225a BB |
1076 | |
1077 | if (serial_idp == NULL || nvlist_add_string(fmri_cpu, | |
1078 | FM_FMRI_CPU_SERIAL_ID, (char *)serial_idp) != 0) | |
bc89ac84 | 1079 | atomic_inc_64(failedp); |
fa42225a BB |
1080 | } |
1081 | ||
1082 | /* | |
1083 | * Set-up and validate the members of a mem according to: | |
1084 | * | |
1085 | * Member name Type Value | |
1086 | * ==================================================== | |
1087 | * version uint8_t 0 | |
1088 | * auth nvlist_t <auth> [optional] | |
1089 | * unum string <unum> | |
1090 | * serial string <serial> [optional*] | |
1091 | * offset uint64_t <offset> [optional] | |
1092 | * | |
1093 | * * serial is required if offset is present | |
1094 | */ | |
1095 | void | |
1096 | fm_fmri_mem_set(nvlist_t *fmri, int version, const nvlist_t *auth, | |
1097 | const char *unum, const char *serial, uint64_t offset) | |
1098 | { | |
1099 | if (version != MEM_SCHEME_VERSION0) { | |
bc89ac84 | 1100 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1101 | return; |
1102 | } | |
1103 | ||
1104 | if (!serial && (offset != (uint64_t)-1)) { | |
bc89ac84 | 1105 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1106 | return; |
1107 | } | |
1108 | ||
1109 | if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0) { | |
bc89ac84 | 1110 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1111 | return; |
1112 | } | |
1113 | ||
1114 | if (nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_MEM) != 0) { | |
bc89ac84 | 1115 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1116 | return; |
1117 | } | |
1118 | ||
1119 | if (auth != NULL) { | |
1120 | if (nvlist_add_nvlist(fmri, FM_FMRI_AUTHORITY, | |
1121 | (nvlist_t *)auth) != 0) { | |
bc89ac84 JJS |
1122 | atomic_inc_64( |
1123 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
fa42225a BB |
1124 | } |
1125 | } | |
1126 | ||
1127 | if (nvlist_add_string(fmri, FM_FMRI_MEM_UNUM, unum) != 0) { | |
bc89ac84 | 1128 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1129 | } |
1130 | ||
1131 | if (serial != NULL) { | |
1132 | if (nvlist_add_string_array(fmri, FM_FMRI_MEM_SERIAL_ID, | |
795075e6 | 1133 | (const char **)&serial, 1) != 0) { |
bc89ac84 JJS |
1134 | atomic_inc_64( |
1135 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
fa42225a | 1136 | } |
bc89ac84 JJS |
1137 | if (offset != (uint64_t)-1 && nvlist_add_uint64(fmri, |
1138 | FM_FMRI_MEM_OFFSET, offset) != 0) { | |
1139 | atomic_inc_64( | |
1140 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
fa42225a BB |
1141 | } |
1142 | } | |
1143 | } | |
1144 | ||
1145 | void | |
1146 | fm_fmri_zfs_set(nvlist_t *fmri, int version, uint64_t pool_guid, | |
1147 | uint64_t vdev_guid) | |
1148 | { | |
1149 | if (version != ZFS_SCHEME_VERSION0) { | |
bc89ac84 | 1150 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1151 | return; |
1152 | } | |
1153 | ||
1154 | if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0) { | |
bc89ac84 | 1155 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1156 | return; |
1157 | } | |
1158 | ||
1159 | if (nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_ZFS) != 0) { | |
bc89ac84 | 1160 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1161 | return; |
1162 | } | |
1163 | ||
1164 | if (nvlist_add_uint64(fmri, FM_FMRI_ZFS_POOL, pool_guid) != 0) { | |
bc89ac84 | 1165 | atomic_inc_64(&erpt_kstat_data.fmri_set_failed.value.ui64); |
fa42225a BB |
1166 | } |
1167 | ||
1168 | if (vdev_guid != 0) { | |
1169 | if (nvlist_add_uint64(fmri, FM_FMRI_ZFS_VDEV, vdev_guid) != 0) { | |
bc89ac84 JJS |
1170 | atomic_inc_64( |
1171 | &erpt_kstat_data.fmri_set_failed.value.ui64); | |
fa42225a BB |
1172 | } |
1173 | } | |
1174 | } | |
1175 | ||
1176 | uint64_t | |
1177 | fm_ena_increment(uint64_t ena) | |
1178 | { | |
1179 | uint64_t new_ena; | |
1180 | ||
1181 | switch (ENA_FORMAT(ena)) { | |
1182 | case FM_ENA_FMT1: | |
1183 | new_ena = ena + (1 << ENA_FMT1_GEN_SHFT); | |
1184 | break; | |
1185 | case FM_ENA_FMT2: | |
1186 | new_ena = ena + (1 << ENA_FMT2_GEN_SHFT); | |
1187 | break; | |
1188 | default: | |
1189 | new_ena = 0; | |
1190 | } | |
1191 | ||
1192 | return (new_ena); | |
1193 | } | |
1194 | ||
1195 | uint64_t | |
1196 | fm_ena_generate_cpu(uint64_t timestamp, processorid_t cpuid, uchar_t format) | |
1197 | { | |
1198 | uint64_t ena = 0; | |
1199 | ||
1200 | switch (format) { | |
1201 | case FM_ENA_FMT1: | |
1202 | if (timestamp) { | |
1203 | ena = (uint64_t)((format & ENA_FORMAT_MASK) | | |
1204 | ((cpuid << ENA_FMT1_CPUID_SHFT) & | |
1205 | ENA_FMT1_CPUID_MASK) | | |
1206 | ((timestamp << ENA_FMT1_TIME_SHFT) & | |
1207 | ENA_FMT1_TIME_MASK)); | |
1208 | } else { | |
1209 | ena = (uint64_t)((format & ENA_FORMAT_MASK) | | |
1210 | ((cpuid << ENA_FMT1_CPUID_SHFT) & | |
1211 | ENA_FMT1_CPUID_MASK) | | |
26685276 | 1212 | ((gethrtime() << ENA_FMT1_TIME_SHFT) & |
fa42225a BB |
1213 | ENA_FMT1_TIME_MASK)); |
1214 | } | |
1215 | break; | |
1216 | case FM_ENA_FMT2: | |
1217 | ena = (uint64_t)((format & ENA_FORMAT_MASK) | | |
1218 | ((timestamp << ENA_FMT2_TIME_SHFT) & ENA_FMT2_TIME_MASK)); | |
1219 | break; | |
1220 | default: | |
1221 | break; | |
1222 | } | |
1223 | ||
1224 | return (ena); | |
1225 | } | |
1226 | ||
1227 | uint64_t | |
1228 | fm_ena_generate(uint64_t timestamp, uchar_t format) | |
1229 | { | |
15a9e033 PS |
1230 | uint64_t ena; |
1231 | ||
1232 | kpreempt_disable(); | |
1233 | ena = fm_ena_generate_cpu(timestamp, getcpuid(), format); | |
1234 | kpreempt_enable(); | |
1235 | ||
1236 | return (ena); | |
fa42225a BB |
1237 | } |
1238 | ||
1239 | uint64_t | |
1240 | fm_ena_generation_get(uint64_t ena) | |
1241 | { | |
1242 | uint64_t gen; | |
1243 | ||
1244 | switch (ENA_FORMAT(ena)) { | |
1245 | case FM_ENA_FMT1: | |
1246 | gen = (ena & ENA_FMT1_GEN_MASK) >> ENA_FMT1_GEN_SHFT; | |
1247 | break; | |
1248 | case FM_ENA_FMT2: | |
1249 | gen = (ena & ENA_FMT2_GEN_MASK) >> ENA_FMT2_GEN_SHFT; | |
1250 | break; | |
1251 | default: | |
1252 | gen = 0; | |
1253 | break; | |
1254 | } | |
1255 | ||
1256 | return (gen); | |
1257 | } | |
1258 | ||
1259 | uchar_t | |
1260 | fm_ena_format_get(uint64_t ena) | |
1261 | { | |
1262 | ||
1263 | return (ENA_FORMAT(ena)); | |
1264 | } | |
1265 | ||
1266 | uint64_t | |
1267 | fm_ena_id_get(uint64_t ena) | |
1268 | { | |
1269 | uint64_t id; | |
1270 | ||
1271 | switch (ENA_FORMAT(ena)) { | |
1272 | case FM_ENA_FMT1: | |
1273 | id = (ena & ENA_FMT1_ID_MASK) >> ENA_FMT1_ID_SHFT; | |
1274 | break; | |
1275 | case FM_ENA_FMT2: | |
1276 | id = (ena & ENA_FMT2_ID_MASK) >> ENA_FMT2_ID_SHFT; | |
1277 | break; | |
1278 | default: | |
1279 | id = 0; | |
1280 | } | |
1281 | ||
1282 | return (id); | |
1283 | } | |
1284 | ||
1285 | uint64_t | |
1286 | fm_ena_time_get(uint64_t ena) | |
1287 | { | |
1288 | uint64_t time; | |
1289 | ||
1290 | switch (ENA_FORMAT(ena)) { | |
1291 | case FM_ENA_FMT1: | |
1292 | time = (ena & ENA_FMT1_TIME_MASK) >> ENA_FMT1_TIME_SHFT; | |
1293 | break; | |
1294 | case FM_ENA_FMT2: | |
1295 | time = (ena & ENA_FMT2_TIME_MASK) >> ENA_FMT2_TIME_SHFT; | |
1296 | break; | |
1297 | default: | |
1298 | time = 0; | |
1299 | } | |
1300 | ||
1301 | return (time); | |
1302 | } | |
1303 | ||
6078881a TH |
1304 | #ifdef _KERNEL |
1305 | /* | |
1306 | * Helper function to increment ereport dropped count. Used by the event | |
1307 | * rate limiting code to give feedback to the user about how many events were | |
1308 | * rate limited by including them in the 'dropped' count. | |
1309 | */ | |
1310 | void | |
1311 | fm_erpt_dropped_increment(void) | |
1312 | { | |
1313 | atomic_inc_64(&ratelimit_dropped); | |
1314 | } | |
6078881a | 1315 | |
fa42225a | 1316 | void |
26685276 | 1317 | fm_init(void) |
fa42225a | 1318 | { |
26685276 BB |
1319 | zevent_len_cur = 0; |
1320 | zevent_flags = 0; | |
fa42225a | 1321 | |
26685276 BB |
1322 | /* Initialize zevent allocation and generation kstats */ |
1323 | fm_ksp = kstat_create("zfs", 0, "fm", "misc", KSTAT_TYPE_NAMED, | |
1324 | sizeof (struct erpt_kstat) / sizeof (kstat_named_t), | |
1325 | KSTAT_FLAG_VIRTUAL); | |
1326 | ||
1327 | if (fm_ksp != NULL) { | |
1328 | fm_ksp->ks_data = &erpt_kstat_data; | |
1329 | kstat_install(fm_ksp); | |
1330 | } else { | |
1331 | cmn_err(CE_NOTE, "failed to create fm/misc kstat\n"); | |
1332 | } | |
1333 | ||
1334 | mutex_init(&zevent_lock, NULL, MUTEX_DEFAULT, NULL); | |
d1d7e268 MK |
1335 | list_create(&zevent_list, sizeof (zevent_t), |
1336 | offsetof(zevent_t, ev_node)); | |
26685276 | 1337 | cv_init(&zevent_cv, NULL, CV_DEFAULT, NULL); |
4f072827 DB |
1338 | |
1339 | zfs_ereport_init(); | |
fa42225a | 1340 | } |
428870ff BB |
1341 | |
1342 | void | |
26685276 | 1343 | fm_fini(void) |
428870ff | 1344 | { |
26685276 | 1345 | int count; |
428870ff | 1346 | |
4f072827 DB |
1347 | zfs_ereport_fini(); |
1348 | ||
26685276 | 1349 | zfs_zevent_drain_all(&count); |
428870ff | 1350 | |
26685276 | 1351 | mutex_enter(&zevent_lock); |
99db9bfd BB |
1352 | cv_broadcast(&zevent_cv); |
1353 | ||
26685276 BB |
1354 | zevent_flags |= ZEVENT_SHUTDOWN; |
1355 | while (zevent_waiters > 0) { | |
1356 | mutex_exit(&zevent_lock); | |
1357 | schedule(); | |
1358 | mutex_enter(&zevent_lock); | |
428870ff | 1359 | } |
26685276 | 1360 | mutex_exit(&zevent_lock); |
428870ff | 1361 | |
26685276 BB |
1362 | cv_destroy(&zevent_cv); |
1363 | list_destroy(&zevent_list); | |
1364 | mutex_destroy(&zevent_lock); | |
428870ff | 1365 | |
26685276 BB |
1366 | if (fm_ksp != NULL) { |
1367 | kstat_delete(fm_ksp); | |
1368 | fm_ksp = NULL; | |
428870ff | 1369 | } |
26685276 | 1370 | } |
5f087dda | 1371 | #endif /* _KERNEL */ |
428870ff | 1372 | |
5f087dda RM |
1373 | ZFS_MODULE_PARAM(zfs_zevent, zfs_zevent_, len_max, INT, ZMOD_RW, |
1374 | "Max event queue length"); |