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7bdf406d TG |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
22 | * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. | |
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 | |
34 | * name-value pair list (nvlist_t). FMA-specific nvlist construtor and | |
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> | |
56 | #include <sys/list.h> | |
57 | #include <sys/nvpair.h> | |
58 | #include <sys/cmn_err.h> | |
59 | #include <sys/sysmacros.h> | |
60 | #include <sys/compress.h> | |
61 | #include <sys/sunddi.h> | |
62 | #include <sys/systeminfo.h> | |
63 | #include <sys/fm/util.h> | |
64 | #include <sys/fm/protocol.h> | |
65 | #include <sys/kstat.h> | |
66 | #include <sys/zfs_context.h> | |
67 | #ifdef _KERNEL | |
68 | #include <sys/atomic.h> | |
69 | #include <sys/condvar.h> | |
70 | #include <sys/cpuvar.h> | |
71 | #include <sys/systm.h> | |
72 | #include <sys/dumphdr.h> | |
73 | #include <sys/cpuvar.h> | |
74 | #include <sys/console.h> | |
75 | #include <sys/kobj.h> | |
76 | #include <sys/time.h> | |
77 | #include <sys/zfs_ioctl.h> | |
78 | ||
79 | int zfs_zevent_len_max = 0; | |
80 | int zfs_zevent_cols = 80; | |
81 | int zfs_zevent_console = 0; | |
82 | ||
83 | static int zevent_len_cur = 0; | |
84 | static int zevent_waiters = 0; | |
85 | static int zevent_flags = 0; | |
86 | ||
87 | /* | |
88 | * The EID (Event IDentifier) is used to uniquely tag a zevent when it is | |
89 | * posted. The posted EIDs are monotonically increasing but not persistent. | |
90 | * They will be reset to the initial value (1) each time the kernel module is | |
91 | * loaded. | |
92 | */ | |
93 | static uint64_t zevent_eid = 0; | |
94 | ||
95 | static kmutex_t zevent_lock; | |
96 | static list_t zevent_list; | |
97 | static kcondvar_t zevent_cv; | |
98 | #endif /* _KERNEL */ | |
99 | ||
0bd31011 | 100 | extern void fastreboot_disable_highpil(void); |
7bdf406d TG |
101 | |
102 | /* | |
103 | * Common fault management kstats to record event generation failures | |
104 | */ | |
105 | ||
106 | struct erpt_kstat { | |
107 | kstat_named_t erpt_dropped; /* num erpts dropped on post */ | |
108 | kstat_named_t erpt_set_failed; /* num erpt set failures */ | |
109 | kstat_named_t fmri_set_failed; /* num fmri set failures */ | |
110 | kstat_named_t payload_set_failed; /* num payload set failures */ | |
111 | }; | |
112 | ||
113 | static struct erpt_kstat erpt_kstat_data = { | |
114 | { "erpt-dropped", KSTAT_DATA_UINT64 }, | |
115 | { "erpt-set-failed", KSTAT_DATA_UINT64 }, | |
116 | { "fmri-set-failed", KSTAT_DATA_UINT64 }, | |
117 | { "payload-set-failed", KSTAT_DATA_UINT64 } | |
118 | }; | |
119 | ||
120 | kstat_t *fm_ksp; | |
121 | ||
122 | #ifdef _KERNEL | |
123 | ||
124 | /* | |
125 | * Formatting utility function for fm_nvprintr. We attempt to wrap chunks of | |
126 | * output so they aren't split across console lines, and return the end column. | |
127 | */ | |
128 | /*PRINTFLIKE4*/ | |
129 | static int | |
130 | fm_printf(int depth, int c, int cols, const char *format, ...) | |
131 | { | |
132 | va_list ap; | |
133 | int width; | |
134 | char c1; | |
135 | ||
136 | va_start(ap, format); | |
137 | width = vsnprintf(&c1, sizeof (c1), format, ap); | |
138 | va_end(ap); | |
139 | ||
140 | if (c + width >= cols) { | |
141 | console_printf("\n"); | |
142 | c = 0; | |
143 | if (format[0] != ' ' && depth > 0) { | |
144 | console_printf(" "); | |
145 | c++; | |
146 | } | |
147 | } | |
148 | ||
149 | va_start(ap, format); | |
150 | console_vprintf(format, ap); | |
151 | va_end(ap); | |
152 | ||
153 | return ((c + width) % cols); | |
154 | } | |
155 | ||
156 | /* | |
0bd31011 | 157 | * Recursively print a nvlist in the specified column width and return the |
7bdf406d TG |
158 | * column we end up in. This function is called recursively by fm_nvprint(), |
159 | * below. We generically format the entire nvpair using hexadecimal | |
160 | * integers and strings, and elide any integer arrays. Arrays are basically | |
161 | * used for cache dumps right now, so we suppress them so as not to overwhelm | |
162 | * the amount of console output we produce at panic time. This can be further | |
163 | * enhanced as FMA technology grows based upon the needs of consumers. All | |
164 | * FMA telemetry is logged using the dump device transport, so the console | |
165 | * output serves only as a fallback in case this procedure is unsuccessful. | |
166 | */ | |
167 | static int | |
168 | fm_nvprintr(nvlist_t *nvl, int d, int c, int cols) | |
169 | { | |
170 | nvpair_t *nvp; | |
171 | ||
172 | for (nvp = nvlist_next_nvpair(nvl, NULL); | |
173 | nvp != NULL; nvp = nvlist_next_nvpair(nvl, nvp)) { | |
174 | ||
175 | data_type_t type = nvpair_type(nvp); | |
176 | const char *name = nvpair_name(nvp); | |
177 | ||
178 | boolean_t b; | |
179 | uint8_t i8; | |
180 | uint16_t i16; | |
181 | uint32_t i32; | |
182 | uint64_t i64; | |
183 | char *str; | |
184 | nvlist_t *cnv; | |
185 | ||
186 | if (strcmp(name, FM_CLASS) == 0) | |
187 | continue; /* already printed by caller */ | |
188 | ||
189 | c = fm_printf(d, c, cols, " %s=", name); | |
190 | ||
191 | switch (type) { | |
192 | case DATA_TYPE_BOOLEAN: | |
193 | c = fm_printf(d + 1, c, cols, " 1"); | |
194 | break; | |
195 | ||
196 | case DATA_TYPE_BOOLEAN_VALUE: | |
197 | (void) nvpair_value_boolean_value(nvp, &b); | |
198 | c = fm_printf(d + 1, c, cols, b ? "1" : "0"); | |
199 | break; | |
200 | ||
201 | case DATA_TYPE_BYTE: | |
202 | (void) nvpair_value_byte(nvp, &i8); | |
203 | c = fm_printf(d + 1, c, cols, "0x%x", i8); | |
204 | break; | |
205 | ||
206 | case DATA_TYPE_INT8: | |
207 | (void) nvpair_value_int8(nvp, (void *)&i8); | |
208 | c = fm_printf(d + 1, c, cols, "0x%x", i8); | |
209 | break; | |
210 | ||
211 | case DATA_TYPE_UINT8: | |
212 | (void) nvpair_value_uint8(nvp, &i8); | |
213 | c = fm_printf(d + 1, c, cols, "0x%x", i8); | |
214 | break; | |
215 | ||
216 | case DATA_TYPE_INT16: | |
217 | (void) nvpair_value_int16(nvp, (void *)&i16); | |
218 | c = fm_printf(d + 1, c, cols, "0x%x", i16); | |
219 | break; | |
220 | ||
221 | case DATA_TYPE_UINT16: | |
222 | (void) nvpair_value_uint16(nvp, &i16); | |
223 | c = fm_printf(d + 1, c, cols, "0x%x", i16); | |
224 | break; | |
225 | ||
226 | case DATA_TYPE_INT32: | |
227 | (void) nvpair_value_int32(nvp, (void *)&i32); | |
228 | c = fm_printf(d + 1, c, cols, "0x%x", i32); | |
229 | break; | |
230 | ||
231 | case DATA_TYPE_UINT32: | |
232 | (void) nvpair_value_uint32(nvp, &i32); | |
233 | c = fm_printf(d + 1, c, cols, "0x%x", i32); | |
234 | break; | |
235 | ||
236 | case DATA_TYPE_INT64: | |
237 | (void) nvpair_value_int64(nvp, (void *)&i64); | |
238 | c = fm_printf(d + 1, c, cols, "0x%llx", | |
239 | (u_longlong_t)i64); | |
240 | break; | |
241 | ||
242 | case DATA_TYPE_UINT64: | |
243 | (void) nvpair_value_uint64(nvp, &i64); | |
244 | c = fm_printf(d + 1, c, cols, "0x%llx", | |
245 | (u_longlong_t)i64); | |
246 | break; | |
247 | ||
248 | case DATA_TYPE_HRTIME: | |
249 | (void) nvpair_value_hrtime(nvp, (void *)&i64); | |
250 | c = fm_printf(d + 1, c, cols, "0x%llx", | |
251 | (u_longlong_t)i64); | |
252 | break; | |
253 | ||
254 | case DATA_TYPE_STRING: | |
255 | (void) nvpair_value_string(nvp, &str); | |
256 | c = fm_printf(d + 1, c, cols, "\"%s\"", | |
257 | str ? str : "<NULL>"); | |
258 | break; | |
259 | ||
260 | case DATA_TYPE_NVLIST: | |
261 | c = fm_printf(d + 1, c, cols, "["); | |
262 | (void) nvpair_value_nvlist(nvp, &cnv); | |
263 | c = fm_nvprintr(cnv, d + 1, c, cols); | |
264 | c = fm_printf(d + 1, c, cols, " ]"); | |
265 | break; | |
266 | ||
267 | case DATA_TYPE_NVLIST_ARRAY: { | |
268 | nvlist_t **val; | |
269 | uint_t i, nelem; | |
270 | ||
271 | c = fm_printf(d + 1, c, cols, "["); | |
272 | (void) nvpair_value_nvlist_array(nvp, &val, &nelem); | |
273 | for (i = 0; i < nelem; i++) { | |
274 | c = fm_nvprintr(val[i], d + 1, c, cols); | |
275 | } | |
276 | c = fm_printf(d + 1, c, cols, " ]"); | |
277 | } | |
278 | break; | |
279 | ||
280 | case DATA_TYPE_INT8_ARRAY: { | |
281 | int8_t *val; | |
282 | uint_t i, nelem; | |
283 | ||
284 | c = fm_printf(d + 1, c, cols, "[ "); | |
285 | (void) nvpair_value_int8_array(nvp, &val, &nelem); | |
286 | for (i = 0; i < nelem; i++) | |
287 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
288 | (u_longlong_t)val[i]); | |
289 | ||
290 | c = fm_printf(d + 1, c, cols, "]"); | |
291 | break; | |
292 | } | |
293 | ||
294 | case DATA_TYPE_UINT8_ARRAY: { | |
295 | uint8_t *val; | |
296 | uint_t i, nelem; | |
297 | ||
298 | c = fm_printf(d + 1, c, cols, "[ "); | |
299 | (void) nvpair_value_uint8_array(nvp, &val, &nelem); | |
300 | for (i = 0; i < nelem; i++) | |
301 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
302 | (u_longlong_t)val[i]); | |
303 | ||
304 | c = fm_printf(d + 1, c, cols, "]"); | |
305 | break; | |
306 | } | |
307 | ||
308 | case DATA_TYPE_INT16_ARRAY: { | |
309 | int16_t *val; | |
310 | uint_t i, nelem; | |
311 | ||
312 | c = fm_printf(d + 1, c, cols, "[ "); | |
313 | (void) nvpair_value_int16_array(nvp, &val, &nelem); | |
314 | for (i = 0; i < nelem; i++) | |
315 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
316 | (u_longlong_t)val[i]); | |
317 | ||
318 | c = fm_printf(d + 1, c, cols, "]"); | |
319 | break; | |
320 | } | |
321 | ||
322 | case DATA_TYPE_UINT16_ARRAY: { | |
323 | uint16_t *val; | |
324 | uint_t i, nelem; | |
325 | ||
326 | c = fm_printf(d + 1, c, cols, "[ "); | |
327 | (void) nvpair_value_uint16_array(nvp, &val, &nelem); | |
328 | for (i = 0; i < nelem; i++) | |
329 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
330 | (u_longlong_t)val[i]); | |
331 | ||
332 | c = fm_printf(d + 1, c, cols, "]"); | |
333 | break; | |
334 | } | |
335 | ||
336 | case DATA_TYPE_INT32_ARRAY: { | |
337 | int32_t *val; | |
338 | uint_t i, nelem; | |
339 | ||
340 | c = fm_printf(d + 1, c, cols, "[ "); | |
341 | (void) nvpair_value_int32_array(nvp, &val, &nelem); | |
342 | for (i = 0; i < nelem; i++) | |
343 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
344 | (u_longlong_t)val[i]); | |
345 | ||
346 | c = fm_printf(d + 1, c, cols, "]"); | |
347 | break; | |
348 | } | |
349 | ||
350 | case DATA_TYPE_UINT32_ARRAY: { | |
351 | uint32_t *val; | |
352 | uint_t i, nelem; | |
353 | ||
354 | c = fm_printf(d + 1, c, cols, "[ "); | |
355 | (void) nvpair_value_uint32_array(nvp, &val, &nelem); | |
356 | for (i = 0; i < nelem; i++) | |
357 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
358 | (u_longlong_t)val[i]); | |
359 | ||
360 | c = fm_printf(d + 1, c, cols, "]"); | |
361 | break; | |
362 | } | |
363 | ||
364 | case DATA_TYPE_INT64_ARRAY: { | |
365 | int64_t *val; | |
366 | uint_t i, nelem; | |
367 | ||
368 | c = fm_printf(d + 1, c, cols, "[ "); | |
369 | (void) nvpair_value_int64_array(nvp, &val, &nelem); | |
370 | for (i = 0; i < nelem; i++) | |
371 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
372 | (u_longlong_t)val[i]); | |
373 | ||
374 | c = fm_printf(d + 1, c, cols, "]"); | |
375 | break; | |
376 | } | |
377 | ||
378 | case DATA_TYPE_UINT64_ARRAY: { | |
379 | uint64_t *val; | |
380 | uint_t i, nelem; | |
381 | ||
382 | c = fm_printf(d + 1, c, cols, "[ "); | |
383 | (void) nvpair_value_uint64_array(nvp, &val, &nelem); | |
384 | for (i = 0; i < nelem; i++) | |
385 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
386 | (u_longlong_t)val[i]); | |
387 | ||
388 | c = fm_printf(d + 1, c, cols, "]"); | |
389 | break; | |
390 | } | |
391 | ||
392 | case DATA_TYPE_STRING_ARRAY: | |
393 | case DATA_TYPE_BOOLEAN_ARRAY: | |
394 | case DATA_TYPE_BYTE_ARRAY: | |
395 | c = fm_printf(d + 1, c, cols, "[...]"); | |
396 | break; | |
397 | ||
398 | case DATA_TYPE_UNKNOWN: | |
399 | c = fm_printf(d + 1, c, cols, "<unknown>"); | |
400 | break; | |
401 | } | |
402 | } | |
403 | ||
404 | return (c); | |
405 | } | |
406 | ||
407 | void | |
408 | fm_nvprint(nvlist_t *nvl) | |
409 | { | |
410 | char *class; | |
411 | int c = 0; | |
412 | ||
413 | console_printf("\n"); | |
414 | ||
415 | if (nvlist_lookup_string(nvl, FM_CLASS, &class) == 0) | |
416 | c = fm_printf(0, c, zfs_zevent_cols, "%s", class); | |
417 | ||
418 | if (fm_nvprintr(nvl, 0, c, zfs_zevent_cols) != 0) | |
419 | console_printf("\n"); | |
420 | ||
421 | console_printf("\n"); | |
422 | } | |
423 | ||
424 | static zevent_t * | |
425 | zfs_zevent_alloc(void) | |
426 | { | |
427 | zevent_t *ev; | |
428 | ||
429 | ev = kmem_zalloc(sizeof (zevent_t), KM_SLEEP); | |
0bd31011 TG |
430 | if (ev == NULL) |
431 | return (NULL); | |
7bdf406d TG |
432 | |
433 | list_create(&ev->ev_ze_list, sizeof (zfs_zevent_t), | |
434 | offsetof(zfs_zevent_t, ze_node)); | |
435 | list_link_init(&ev->ev_node); | |
436 | ||
437 | return (ev); | |
438 | } | |
439 | ||
440 | static void | |
441 | zfs_zevent_free(zevent_t *ev) | |
442 | { | |
443 | /* Run provided cleanup callback */ | |
444 | ev->ev_cb(ev->ev_nvl, ev->ev_detector); | |
445 | ||
446 | list_destroy(&ev->ev_ze_list); | |
447 | kmem_free(ev, sizeof (zevent_t)); | |
448 | } | |
449 | ||
450 | static void | |
451 | zfs_zevent_drain(zevent_t *ev) | |
452 | { | |
453 | zfs_zevent_t *ze; | |
454 | ||
455 | ASSERT(MUTEX_HELD(&zevent_lock)); | |
456 | list_remove(&zevent_list, ev); | |
457 | ||
458 | /* Remove references to this event in all private file data */ | |
459 | while ((ze = list_head(&ev->ev_ze_list)) != NULL) { | |
460 | list_remove(&ev->ev_ze_list, ze); | |
461 | ze->ze_zevent = NULL; | |
462 | ze->ze_dropped++; | |
463 | } | |
464 | ||
465 | zfs_zevent_free(ev); | |
466 | } | |
467 | ||
468 | void | |
469 | zfs_zevent_drain_all(int *count) | |
470 | { | |
471 | zevent_t *ev; | |
472 | ||
473 | mutex_enter(&zevent_lock); | |
474 | while ((ev = list_head(&zevent_list)) != NULL) | |
475 | zfs_zevent_drain(ev); | |
476 | ||
477 | *count = zevent_len_cur; | |
478 | zevent_len_cur = 0; | |
479 | mutex_exit(&zevent_lock); | |
480 | } | |
481 | ||
482 | /* | |
483 | * New zevents are inserted at the head. If the maximum queue | |
484 | * length is exceeded a zevent will be drained from the tail. | |
485 | * As part of this any user space processes which currently have | |
486 | * a reference to this zevent_t in their private data will have | |
487 | * this reference set to NULL. | |
488 | */ | |
489 | static void | |
490 | zfs_zevent_insert(zevent_t *ev) | |
491 | { | |
492 | ASSERT(MUTEX_HELD(&zevent_lock)); | |
493 | list_insert_head(&zevent_list, ev); | |
494 | ||
495 | if (zevent_len_cur >= zfs_zevent_len_max) | |
496 | zfs_zevent_drain(list_tail(&zevent_list)); | |
497 | else | |
498 | zevent_len_cur++; | |
499 | } | |
500 | ||
501 | /* | |
502 | * Post a zevent. The cb will be called when nvl and detector are no longer | |
503 | * needed, i.e.: | |
504 | * - An error happened and a zevent can't be posted. In this case, cb is called | |
505 | * before zfs_zevent_post() returns. | |
506 | * - The event is being drained and freed. | |
507 | */ | |
508 | int | |
509 | zfs_zevent_post(nvlist_t *nvl, nvlist_t *detector, zevent_cb_t *cb) | |
510 | { | |
511 | int64_t tv_array[2]; | |
512 | timestruc_t tv; | |
513 | uint64_t eid; | |
514 | size_t nvl_size = 0; | |
515 | zevent_t *ev; | |
516 | int error; | |
517 | ||
518 | ASSERT(cb != NULL); | |
519 | ||
520 | gethrestime(&tv); | |
521 | tv_array[0] = tv.tv_sec; | |
522 | tv_array[1] = tv.tv_nsec; | |
523 | ||
524 | error = nvlist_add_int64_array(nvl, FM_EREPORT_TIME, tv_array, 2); | |
525 | if (error) { | |
0bd31011 | 526 | atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1); |
7bdf406d TG |
527 | goto out; |
528 | } | |
529 | ||
530 | eid = atomic_inc_64_nv(&zevent_eid); | |
531 | error = nvlist_add_uint64(nvl, FM_EREPORT_EID, eid); | |
532 | if (error) { | |
0bd31011 | 533 | atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1); |
7bdf406d TG |
534 | goto out; |
535 | } | |
536 | ||
537 | error = nvlist_size(nvl, &nvl_size, NV_ENCODE_NATIVE); | |
538 | if (error) { | |
0bd31011 | 539 | atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1); |
7bdf406d TG |
540 | goto out; |
541 | } | |
542 | ||
543 | if (nvl_size > ERPT_DATA_SZ || nvl_size == 0) { | |
0bd31011 | 544 | atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1); |
7bdf406d TG |
545 | error = EOVERFLOW; |
546 | goto out; | |
547 | } | |
548 | ||
549 | if (zfs_zevent_console) | |
550 | fm_nvprint(nvl); | |
551 | ||
552 | ev = zfs_zevent_alloc(); | |
553 | if (ev == NULL) { | |
0bd31011 | 554 | atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1); |
7bdf406d TG |
555 | error = ENOMEM; |
556 | goto out; | |
557 | } | |
558 | ||
559 | ev->ev_nvl = nvl; | |
560 | ev->ev_detector = detector; | |
561 | ev->ev_cb = cb; | |
562 | ev->ev_eid = eid; | |
563 | ||
564 | mutex_enter(&zevent_lock); | |
565 | zfs_zevent_insert(ev); | |
566 | cv_broadcast(&zevent_cv); | |
567 | mutex_exit(&zevent_lock); | |
568 | ||
569 | out: | |
570 | if (error) | |
571 | cb(nvl, detector); | |
572 | ||
573 | return (error); | |
574 | } | |
575 | ||
576 | static int | |
577 | zfs_zevent_minor_to_state(minor_t minor, zfs_zevent_t **ze) | |
578 | { | |
579 | *ze = zfsdev_get_state(minor, ZST_ZEVENT); | |
580 | if (*ze == NULL) | |
581 | return (EBADF); | |
582 | ||
583 | return (0); | |
584 | } | |
585 | ||
586 | int | |
587 | zfs_zevent_fd_hold(int fd, minor_t *minorp, zfs_zevent_t **ze) | |
588 | { | |
589 | file_t *fp; | |
590 | int error; | |
591 | ||
592 | fp = getf(fd); | |
593 | if (fp == NULL) | |
594 | return (EBADF); | |
595 | ||
596 | error = zfsdev_getminor(fp->f_file, minorp); | |
597 | if (error == 0) | |
598 | error = zfs_zevent_minor_to_state(*minorp, ze); | |
599 | ||
600 | if (error) | |
601 | zfs_zevent_fd_rele(fd); | |
602 | ||
603 | return (error); | |
604 | } | |
605 | ||
606 | void | |
607 | zfs_zevent_fd_rele(int fd) | |
608 | { | |
609 | releasef(fd); | |
610 | } | |
611 | ||
612 | /* | |
613 | * Get the next zevent in the stream and place a copy in 'event'. This | |
614 | * may fail with ENOMEM if the encoded nvlist size exceeds the passed | |
615 | * 'event_size'. In this case the stream pointer is not advanced and | |
616 | * and 'event_size' is set to the minimum required buffer size. | |
617 | */ | |
618 | int | |
619 | zfs_zevent_next(zfs_zevent_t *ze, nvlist_t **event, uint64_t *event_size, | |
620 | uint64_t *dropped) | |
621 | { | |
622 | zevent_t *ev; | |
623 | size_t size; | |
624 | int error = 0; | |
625 | ||
626 | mutex_enter(&zevent_lock); | |
627 | if (ze->ze_zevent == NULL) { | |
628 | /* New stream start at the beginning/tail */ | |
629 | ev = list_tail(&zevent_list); | |
630 | if (ev == NULL) { | |
631 | error = ENOENT; | |
632 | goto out; | |
633 | } | |
634 | } else { | |
635 | /* | |
636 | * Existing stream continue with the next element and remove | |
637 | * ourselves from the wait queue for the previous element | |
638 | */ | |
639 | ev = list_prev(&zevent_list, ze->ze_zevent); | |
640 | if (ev == NULL) { | |
641 | error = ENOENT; | |
642 | goto out; | |
643 | } | |
644 | } | |
645 | ||
646 | VERIFY(nvlist_size(ev->ev_nvl, &size, NV_ENCODE_NATIVE) == 0); | |
647 | if (size > *event_size) { | |
648 | *event_size = size; | |
649 | error = ENOMEM; | |
650 | goto out; | |
651 | } | |
652 | ||
653 | if (ze->ze_zevent) | |
654 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
655 | ||
656 | ze->ze_zevent = ev; | |
657 | list_insert_head(&ev->ev_ze_list, ze); | |
0bd31011 | 658 | nvlist_dup(ev->ev_nvl, event, KM_SLEEP); |
7bdf406d TG |
659 | *dropped = ze->ze_dropped; |
660 | ze->ze_dropped = 0; | |
661 | out: | |
662 | mutex_exit(&zevent_lock); | |
663 | ||
664 | return (error); | |
665 | } | |
666 | ||
667 | int | |
668 | zfs_zevent_wait(zfs_zevent_t *ze) | |
669 | { | |
670 | int error = 0; | |
671 | ||
672 | mutex_enter(&zevent_lock); | |
673 | ||
674 | if (zevent_flags & ZEVENT_SHUTDOWN) { | |
675 | error = ESHUTDOWN; | |
676 | goto out; | |
677 | } | |
678 | ||
679 | zevent_waiters++; | |
680 | cv_wait_sig(&zevent_cv, &zevent_lock); | |
681 | if (issig(JUSTLOOKING)) | |
682 | error = EINTR; | |
683 | ||
684 | zevent_waiters--; | |
685 | out: | |
686 | mutex_exit(&zevent_lock); | |
687 | ||
688 | return (error); | |
689 | } | |
690 | ||
691 | /* | |
692 | * The caller may seek to a specific EID by passing that EID. If the EID | |
693 | * is still available in the posted list of events the cursor is positioned | |
694 | * there. Otherwise ENOENT is returned and the cursor is not moved. | |
695 | * | |
696 | * There are two reserved EIDs which may be passed and will never fail. | |
697 | * ZEVENT_SEEK_START positions the cursor at the start of the list, and | |
698 | * ZEVENT_SEEK_END positions the cursor at the end of the list. | |
699 | */ | |
700 | int | |
701 | zfs_zevent_seek(zfs_zevent_t *ze, uint64_t eid) | |
702 | { | |
703 | zevent_t *ev; | |
704 | int error = 0; | |
705 | ||
706 | mutex_enter(&zevent_lock); | |
707 | ||
708 | if (eid == ZEVENT_SEEK_START) { | |
709 | if (ze->ze_zevent) | |
710 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
711 | ||
712 | ze->ze_zevent = NULL; | |
713 | goto out; | |
714 | } | |
715 | ||
716 | if (eid == ZEVENT_SEEK_END) { | |
717 | if (ze->ze_zevent) | |
718 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
719 | ||
720 | ev = list_head(&zevent_list); | |
721 | if (ev) { | |
722 | ze->ze_zevent = ev; | |
723 | list_insert_head(&ev->ev_ze_list, ze); | |
724 | } else { | |
725 | ze->ze_zevent = NULL; | |
726 | } | |
727 | ||
728 | goto out; | |
729 | } | |
730 | ||
731 | for (ev = list_tail(&zevent_list); ev != NULL; | |
732 | ev = list_prev(&zevent_list, ev)) { | |
733 | if (ev->ev_eid == eid) { | |
734 | if (ze->ze_zevent) | |
735 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
736 | ||
737 | ze->ze_zevent = ev; | |
738 | list_insert_head(&ev->ev_ze_list, ze); | |
739 | break; | |
740 | } | |
741 | } | |
742 | ||
743 | if (ev == NULL) | |
744 | error = ENOENT; | |
745 | ||
746 | out: | |
747 | mutex_exit(&zevent_lock); | |
748 | ||
749 | return (error); | |
750 | } | |
751 | ||
752 | void | |
753 | zfs_zevent_init(zfs_zevent_t **zep) | |
754 | { | |
755 | zfs_zevent_t *ze; | |
756 | ||
757 | ze = *zep = kmem_zalloc(sizeof (zfs_zevent_t), KM_SLEEP); | |
758 | list_link_init(&ze->ze_node); | |
759 | } | |
760 | ||
761 | void | |
762 | zfs_zevent_destroy(zfs_zevent_t *ze) | |
763 | { | |
764 | mutex_enter(&zevent_lock); | |
765 | if (ze->ze_zevent) | |
766 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
767 | mutex_exit(&zevent_lock); | |
768 | ||
769 | kmem_free(ze, sizeof (zfs_zevent_t)); | |
770 | } | |
771 | #endif /* _KERNEL */ | |
772 | ||
773 | /* | |
774 | * Wrapppers for FM nvlist allocators | |
775 | */ | |
776 | /* ARGSUSED */ | |
777 | static void * | |
778 | i_fm_alloc(nv_alloc_t *nva, size_t size) | |
779 | { | |
780 | return (kmem_zalloc(size, KM_SLEEP)); | |
781 | } | |
782 | ||
783 | /* ARGSUSED */ | |
784 | static void | |
785 | i_fm_free(nv_alloc_t *nva, void *buf, size_t size) | |
786 | { | |
787 | kmem_free(buf, size); | |
788 | } | |
789 | ||
790 | const nv_alloc_ops_t fm_mem_alloc_ops = { | |
791 | NULL, | |
792 | NULL, | |
793 | i_fm_alloc, | |
794 | i_fm_free, | |
795 | NULL | |
796 | }; | |
797 | ||
798 | /* | |
799 | * Create and initialize a new nv_alloc_t for a fixed buffer, buf. A pointer | |
800 | * to the newly allocated nv_alloc_t structure is returned upon success or NULL | |
801 | * is returned to indicate that the nv_alloc structure could not be created. | |
802 | */ | |
803 | nv_alloc_t * | |
804 | fm_nva_xcreate(char *buf, size_t bufsz) | |
805 | { | |
806 | nv_alloc_t *nvhdl = kmem_zalloc(sizeof (nv_alloc_t), KM_SLEEP); | |
807 | ||
808 | if (bufsz == 0 || nv_alloc_init(nvhdl, nv_fixed_ops, buf, bufsz) != 0) { | |
809 | kmem_free(nvhdl, sizeof (nv_alloc_t)); | |
810 | return (NULL); | |
811 | } | |
812 | ||
813 | return (nvhdl); | |
814 | } | |
815 | ||
816 | /* | |
817 | * Destroy a previously allocated nv_alloc structure. The fixed buffer | |
818 | * associated with nva must be freed by the caller. | |
819 | */ | |
820 | void | |
821 | fm_nva_xdestroy(nv_alloc_t *nva) | |
822 | { | |
823 | nv_alloc_fini(nva); | |
824 | kmem_free(nva, sizeof (nv_alloc_t)); | |
825 | } | |
826 | ||
827 | /* | |
828 | * Create a new nv list. A pointer to a new nv list structure is returned | |
829 | * upon success or NULL is returned to indicate that the structure could | |
830 | * not be created. The newly created nv list is created and managed by the | |
831 | * operations installed in nva. If nva is NULL, the default FMA nva | |
832 | * operations are installed and used. | |
833 | * | |
834 | * When called from the kernel and nva == NULL, this function must be called | |
835 | * from passive kernel context with no locks held that can prevent a | |
836 | * sleeping memory allocation from occurring. Otherwise, this function may | |
837 | * be called from other kernel contexts as long a valid nva created via | |
838 | * fm_nva_create() is supplied. | |
839 | */ | |
840 | nvlist_t * | |
841 | fm_nvlist_create(nv_alloc_t *nva) | |
842 | { | |
843 | int hdl_alloced = 0; | |
844 | nvlist_t *nvl; | |
845 | nv_alloc_t *nvhdl; | |
846 | ||
847 | if (nva == NULL) { | |
848 | nvhdl = kmem_zalloc(sizeof (nv_alloc_t), KM_SLEEP); | |
849 | ||
850 | if (nv_alloc_init(nvhdl, &fm_mem_alloc_ops, NULL, 0) != 0) { | |
851 | kmem_free(nvhdl, sizeof (nv_alloc_t)); | |
852 | return (NULL); | |
853 | } | |
854 | hdl_alloced = 1; | |
855 | } else { | |
856 | nvhdl = nva; | |
857 | } | |
858 | ||
859 | if (nvlist_xalloc(&nvl, NV_UNIQUE_NAME, nvhdl) != 0) { | |
860 | if (hdl_alloced) { | |
861 | nv_alloc_fini(nvhdl); | |
862 | kmem_free(nvhdl, sizeof (nv_alloc_t)); | |
863 | } | |
864 | return (NULL); | |
865 | } | |
866 | ||
867 | return (nvl); | |
868 | } | |
869 | ||
870 | /* | |
871 | * Destroy a previously allocated nvlist structure. flag indicates whether | |
872 | * or not the associated nva structure should be freed (FM_NVA_FREE) or | |
873 | * retained (FM_NVA_RETAIN). Retaining the nv alloc structure allows | |
874 | * it to be re-used for future nvlist creation operations. | |
875 | */ | |
876 | void | |
877 | fm_nvlist_destroy(nvlist_t *nvl, int flag) | |
878 | { | |
879 | nv_alloc_t *nva = nvlist_lookup_nv_alloc(nvl); | |
880 | ||
881 | nvlist_free(nvl); | |
882 | ||
883 | if (nva != NULL) { | |
884 | if (flag == FM_NVA_FREE) | |
885 | fm_nva_xdestroy(nva); | |
886 | } | |
887 | } | |
888 | ||
889 | int | |
890 | i_fm_payload_set(nvlist_t *payload, const char *name, va_list ap) | |
891 | { | |
892 | int nelem, ret = 0; | |
893 | data_type_t type; | |
894 | ||
895 | while (ret == 0 && name != NULL) { | |
896 | type = va_arg(ap, data_type_t); | |
897 | switch (type) { | |
898 | case DATA_TYPE_BYTE: | |
899 | ret = nvlist_add_byte(payload, name, | |
900 | va_arg(ap, uint_t)); | |
901 | break; | |
902 | case DATA_TYPE_BYTE_ARRAY: | |
903 | nelem = va_arg(ap, int); | |
904 | ret = nvlist_add_byte_array(payload, name, | |
905 | va_arg(ap, uchar_t *), nelem); | |
906 | break; | |
907 | case DATA_TYPE_BOOLEAN_VALUE: | |
908 | ret = nvlist_add_boolean_value(payload, name, | |
909 | va_arg(ap, boolean_t)); | |
910 | break; | |
911 | case DATA_TYPE_BOOLEAN_ARRAY: | |
912 | nelem = va_arg(ap, int); | |
913 | ret = nvlist_add_boolean_array(payload, name, | |
914 | va_arg(ap, boolean_t *), nelem); | |
915 | break; | |
916 | case DATA_TYPE_INT8: | |
917 | ret = nvlist_add_int8(payload, name, | |
918 | va_arg(ap, int)); | |
919 | break; | |
920 | case DATA_TYPE_INT8_ARRAY: | |
921 | nelem = va_arg(ap, int); | |
922 | ret = nvlist_add_int8_array(payload, name, | |
923 | va_arg(ap, int8_t *), nelem); | |
924 | break; | |
925 | case DATA_TYPE_UINT8: | |
926 | ret = nvlist_add_uint8(payload, name, | |
927 | va_arg(ap, uint_t)); | |
928 | break; | |
929 | case DATA_TYPE_UINT8_ARRAY: | |
930 | nelem = va_arg(ap, int); | |
931 | ret = nvlist_add_uint8_array(payload, name, | |
932 | va_arg(ap, uint8_t *), nelem); | |
933 | break; | |
934 | case DATA_TYPE_INT16: | |
935 | ret = nvlist_add_int16(payload, name, | |
936 | va_arg(ap, int)); | |
937 | break; | |
938 | case DATA_TYPE_INT16_ARRAY: | |
939 | nelem = va_arg(ap, int); | |
940 | ret = nvlist_add_int16_array(payload, name, | |
941 | va_arg(ap, int16_t *), nelem); | |
942 | break; | |
943 | case DATA_TYPE_UINT16: | |
944 | ret = nvlist_add_uint16(payload, name, | |
945 | va_arg(ap, uint_t)); | |
946 | break; | |
947 | case DATA_TYPE_UINT16_ARRAY: | |
948 | nelem = va_arg(ap, int); | |
949 | ret = nvlist_add_uint16_array(payload, name, | |
950 | va_arg(ap, uint16_t *), nelem); | |
951 | break; | |
952 | case DATA_TYPE_INT32: | |
953 | ret = nvlist_add_int32(payload, name, | |
954 | va_arg(ap, int32_t)); | |
955 | break; | |
956 | case DATA_TYPE_INT32_ARRAY: | |
957 | nelem = va_arg(ap, int); | |
958 | ret = nvlist_add_int32_array(payload, name, | |
959 | va_arg(ap, int32_t *), nelem); | |
960 | break; | |
961 | case DATA_TYPE_UINT32: | |
962 | ret = nvlist_add_uint32(payload, name, | |
963 | va_arg(ap, uint32_t)); | |
964 | break; | |
965 | case DATA_TYPE_UINT32_ARRAY: | |
966 | nelem = va_arg(ap, int); | |
967 | ret = nvlist_add_uint32_array(payload, name, | |
968 | va_arg(ap, uint32_t *), nelem); | |
969 | break; | |
970 | case DATA_TYPE_INT64: | |
971 | ret = nvlist_add_int64(payload, name, | |
972 | va_arg(ap, int64_t)); | |
973 | break; | |
974 | case DATA_TYPE_INT64_ARRAY: | |
975 | nelem = va_arg(ap, int); | |
976 | ret = nvlist_add_int64_array(payload, name, | |
977 | va_arg(ap, int64_t *), nelem); | |
978 | break; | |
979 | case DATA_TYPE_UINT64: | |
980 | ret = nvlist_add_uint64(payload, name, | |
981 | va_arg(ap, uint64_t)); | |
982 | break; | |
983 | case DATA_TYPE_UINT64_ARRAY: | |
984 | nelem = va_arg(ap, int); | |
985 | ret = nvlist_add_uint64_array(payload, name, | |
986 | va_arg(ap, uint64_t *), nelem); | |
987 | break; | |
988 | case DATA_TYPE_STRING: | |
989 | ret = nvlist_add_string(payload, name, | |
990 | va_arg(ap, char *)); | |
991 | break; | |
992 | case DATA_TYPE_STRING_ARRAY: | |
993 | nelem = va_arg(ap, int); | |
994 | ret = nvlist_add_string_array(payload, name, | |
995 | va_arg(ap, char **), nelem); | |
996 | break; | |
997 | case DATA_TYPE_NVLIST: | |
998 | ret = nvlist_add_nvlist(payload, name, | |
999 | va_arg(ap, nvlist_t *)); | |
1000 | break; | |
1001 | case DATA_TYPE_NVLIST_ARRAY: | |
1002 | nelem = va_arg(ap, int); | |
1003 | ret = nvlist_add_nvlist_array(payload, name, | |
1004 | va_arg(ap, nvlist_t **), nelem); | |
1005 | break; | |
1006 | default: | |
1007 | ret = EINVAL; | |
1008 | } | |
1009 | ||
1010 | name = va_arg(ap, char *); | |
1011 | } | |
1012 | return (ret); | |
1013 | } | |
1014 | ||
1015 | void | |
1016 | fm_payload_set(nvlist_t *payload, ...) | |
1017 | { | |
1018 | int ret; | |
1019 | const char *name; | |
1020 | va_list ap; | |
1021 | ||
1022 | va_start(ap, payload); | |
1023 | name = va_arg(ap, char *); | |
1024 | ret = i_fm_payload_set(payload, name, ap); | |
1025 | va_end(ap); | |
1026 | ||
1027 | if (ret) | |
0bd31011 TG |
1028 | atomic_add_64( |
1029 | &erpt_kstat_data.payload_set_failed.value.ui64, 1); | |
7bdf406d TG |
1030 | } |
1031 | ||
1032 | /* | |
1033 | * Set-up and validate the members of an ereport event according to: | |
1034 | * | |
1035 | * Member name Type Value | |
1036 | * ==================================================== | |
1037 | * class string ereport | |
1038 | * version uint8_t 0 | |
1039 | * ena uint64_t <ena> | |
1040 | * detector nvlist_t <detector> | |
1041 | * ereport-payload nvlist_t <var args> | |
1042 | * | |
1043 | * We don't actually add a 'version' member to the payload. Really, | |
1044 | * the version quoted to us by our caller is that of the category 1 | |
1045 | * "ereport" event class (and we require FM_EREPORT_VERS0) but | |
1046 | * the payload version of the actual leaf class event under construction | |
1047 | * may be something else. Callers should supply a version in the varargs, | |
1048 | * or (better) we could take two version arguments - one for the | |
1049 | * ereport category 1 classification (expect FM_EREPORT_VERS0) and one | |
1050 | * for the leaf class. | |
1051 | */ | |
1052 | void | |
1053 | fm_ereport_set(nvlist_t *ereport, int version, const char *erpt_class, | |
1054 | uint64_t ena, const nvlist_t *detector, ...) | |
1055 | { | |
1056 | char ereport_class[FM_MAX_CLASS]; | |
1057 | const char *name; | |
1058 | va_list ap; | |
1059 | int ret; | |
1060 | ||
1061 | if (version != FM_EREPORT_VERS0) { | |
0bd31011 | 1062 | atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1); |
7bdf406d TG |
1063 | return; |
1064 | } | |
1065 | ||
1066 | (void) snprintf(ereport_class, FM_MAX_CLASS, "%s.%s", | |
1067 | FM_EREPORT_CLASS, erpt_class); | |
1068 | if (nvlist_add_string(ereport, FM_CLASS, ereport_class) != 0) { | |
0bd31011 | 1069 | atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1); |
7bdf406d TG |
1070 | return; |
1071 | } | |
1072 | ||
1073 | if (nvlist_add_uint64(ereport, FM_EREPORT_ENA, ena)) { | |
0bd31011 | 1074 | atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1); |
7bdf406d TG |
1075 | } |
1076 | ||
1077 | if (nvlist_add_nvlist(ereport, FM_EREPORT_DETECTOR, | |
1078 | (nvlist_t *)detector) != 0) { | |
0bd31011 | 1079 | atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1); |
7bdf406d TG |
1080 | } |
1081 | ||
1082 | va_start(ap, detector); | |
1083 | name = va_arg(ap, const char *); | |
1084 | ret = i_fm_payload_set(ereport, name, ap); | |
1085 | va_end(ap); | |
1086 | ||
1087 | if (ret) | |
0bd31011 | 1088 | atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1); |
7bdf406d TG |
1089 | } |
1090 | ||
1091 | /* | |
1092 | * Set-up and validate the members of an hc fmri according to; | |
1093 | * | |
1094 | * Member name Type Value | |
1095 | * =================================================== | |
1096 | * version uint8_t 0 | |
1097 | * auth nvlist_t <auth> | |
1098 | * hc-name string <name> | |
1099 | * hc-id string <id> | |
1100 | * | |
1101 | * Note that auth and hc-id are optional members. | |
1102 | */ | |
1103 | ||
1104 | #define HC_MAXPAIRS 20 | |
1105 | #define HC_MAXNAMELEN 50 | |
1106 | ||
1107 | static int | |
1108 | fm_fmri_hc_set_common(nvlist_t *fmri, int version, const nvlist_t *auth) | |
1109 | { | |
1110 | if (version != FM_HC_SCHEME_VERSION) { | |
0bd31011 | 1111 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1112 | return (0); |
1113 | } | |
1114 | ||
1115 | if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0 || | |
1116 | nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_HC) != 0) { | |
0bd31011 | 1117 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1118 | return (0); |
1119 | } | |
1120 | ||
1121 | if (auth != NULL && nvlist_add_nvlist(fmri, FM_FMRI_AUTHORITY, | |
1122 | (nvlist_t *)auth) != 0) { | |
0bd31011 | 1123 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1124 | return (0); |
1125 | } | |
1126 | ||
1127 | return (1); | |
1128 | } | |
1129 | ||
1130 | void | |
1131 | fm_fmri_hc_set(nvlist_t *fmri, int version, const nvlist_t *auth, | |
1132 | nvlist_t *snvl, int npairs, ...) | |
1133 | { | |
1134 | nv_alloc_t *nva = nvlist_lookup_nv_alloc(fmri); | |
1135 | nvlist_t *pairs[HC_MAXPAIRS]; | |
1136 | va_list ap; | |
1137 | int i; | |
1138 | ||
1139 | if (!fm_fmri_hc_set_common(fmri, version, auth)) | |
1140 | return; | |
1141 | ||
1142 | npairs = MIN(npairs, HC_MAXPAIRS); | |
1143 | ||
1144 | va_start(ap, npairs); | |
1145 | for (i = 0; i < npairs; i++) { | |
1146 | const char *name = va_arg(ap, const char *); | |
1147 | uint32_t id = va_arg(ap, uint32_t); | |
1148 | char idstr[11]; | |
1149 | ||
1150 | (void) snprintf(idstr, sizeof (idstr), "%u", id); | |
1151 | ||
1152 | pairs[i] = fm_nvlist_create(nva); | |
1153 | if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, name) != 0 || | |
1154 | nvlist_add_string(pairs[i], FM_FMRI_HC_ID, idstr) != 0) { | |
0bd31011 TG |
1155 | atomic_add_64( |
1156 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
7bdf406d TG |
1157 | } |
1158 | } | |
1159 | va_end(ap); | |
1160 | ||
1161 | if (nvlist_add_nvlist_array(fmri, FM_FMRI_HC_LIST, pairs, npairs) != 0) | |
0bd31011 | 1162 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1163 | |
1164 | for (i = 0; i < npairs; i++) | |
1165 | fm_nvlist_destroy(pairs[i], FM_NVA_RETAIN); | |
1166 | ||
1167 | if (snvl != NULL) { | |
1168 | if (nvlist_add_nvlist(fmri, FM_FMRI_HC_SPECIFIC, snvl) != 0) { | |
0bd31011 TG |
1169 | atomic_add_64( |
1170 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
7bdf406d TG |
1171 | } |
1172 | } | |
1173 | } | |
1174 | ||
1175 | void | |
1176 | fm_fmri_hc_create(nvlist_t *fmri, int version, const nvlist_t *auth, | |
1177 | nvlist_t *snvl, nvlist_t *bboard, int npairs, ...) | |
1178 | { | |
1179 | nv_alloc_t *nva = nvlist_lookup_nv_alloc(fmri); | |
1180 | nvlist_t *pairs[HC_MAXPAIRS]; | |
1181 | nvlist_t **hcl; | |
1182 | uint_t n; | |
1183 | int i, j; | |
1184 | va_list ap; | |
1185 | char *hcname, *hcid; | |
1186 | ||
1187 | if (!fm_fmri_hc_set_common(fmri, version, auth)) | |
1188 | return; | |
1189 | ||
1190 | /* | |
1191 | * copy the bboard nvpairs to the pairs array | |
1192 | */ | |
1193 | if (nvlist_lookup_nvlist_array(bboard, FM_FMRI_HC_LIST, &hcl, &n) | |
1194 | != 0) { | |
0bd31011 | 1195 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1196 | return; |
1197 | } | |
1198 | ||
1199 | for (i = 0; i < n; i++) { | |
1200 | if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_NAME, | |
1201 | &hcname) != 0) { | |
0bd31011 TG |
1202 | atomic_add_64( |
1203 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
7bdf406d TG |
1204 | return; |
1205 | } | |
1206 | if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_ID, &hcid) != 0) { | |
0bd31011 TG |
1207 | atomic_add_64( |
1208 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
7bdf406d TG |
1209 | return; |
1210 | } | |
1211 | ||
1212 | pairs[i] = fm_nvlist_create(nva); | |
1213 | if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, hcname) != 0 || | |
1214 | nvlist_add_string(pairs[i], FM_FMRI_HC_ID, hcid) != 0) { | |
1215 | for (j = 0; j <= i; j++) { | |
1216 | if (pairs[j] != NULL) | |
1217 | fm_nvlist_destroy(pairs[j], | |
1218 | FM_NVA_RETAIN); | |
1219 | } | |
0bd31011 TG |
1220 | atomic_add_64( |
1221 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
7bdf406d TG |
1222 | return; |
1223 | } | |
1224 | } | |
1225 | ||
1226 | /* | |
1227 | * create the pairs from passed in pairs | |
1228 | */ | |
1229 | npairs = MIN(npairs, HC_MAXPAIRS); | |
1230 | ||
1231 | va_start(ap, npairs); | |
1232 | for (i = n; i < npairs + n; i++) { | |
1233 | const char *name = va_arg(ap, const char *); | |
1234 | uint32_t id = va_arg(ap, uint32_t); | |
1235 | char idstr[11]; | |
1236 | (void) snprintf(idstr, sizeof (idstr), "%u", id); | |
1237 | pairs[i] = fm_nvlist_create(nva); | |
1238 | if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, name) != 0 || | |
1239 | nvlist_add_string(pairs[i], FM_FMRI_HC_ID, idstr) != 0) { | |
1240 | for (j = 0; j <= i; j++) { | |
1241 | if (pairs[j] != NULL) | |
1242 | fm_nvlist_destroy(pairs[j], | |
1243 | FM_NVA_RETAIN); | |
1244 | } | |
0bd31011 TG |
1245 | atomic_add_64( |
1246 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
7bdf406d TG |
1247 | return; |
1248 | } | |
1249 | } | |
1250 | va_end(ap); | |
1251 | ||
1252 | /* | |
1253 | * Create the fmri hc list | |
1254 | */ | |
1255 | if (nvlist_add_nvlist_array(fmri, FM_FMRI_HC_LIST, pairs, | |
1256 | npairs + n) != 0) { | |
0bd31011 | 1257 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1258 | return; |
1259 | } | |
1260 | ||
1261 | for (i = 0; i < npairs + n; i++) { | |
1262 | fm_nvlist_destroy(pairs[i], FM_NVA_RETAIN); | |
1263 | } | |
1264 | ||
1265 | if (snvl != NULL) { | |
1266 | if (nvlist_add_nvlist(fmri, FM_FMRI_HC_SPECIFIC, snvl) != 0) { | |
0bd31011 TG |
1267 | atomic_add_64( |
1268 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
7bdf406d TG |
1269 | return; |
1270 | } | |
1271 | } | |
1272 | } | |
1273 | ||
1274 | /* | |
1275 | * Set-up and validate the members of an dev fmri according to: | |
1276 | * | |
1277 | * Member name Type Value | |
1278 | * ==================================================== | |
1279 | * version uint8_t 0 | |
1280 | * auth nvlist_t <auth> | |
1281 | * devpath string <devpath> | |
1282 | * [devid] string <devid> | |
1283 | * [target-port-l0id] string <target-port-lun0-id> | |
1284 | * | |
1285 | * Note that auth and devid are optional members. | |
1286 | */ | |
1287 | void | |
1288 | fm_fmri_dev_set(nvlist_t *fmri_dev, int version, const nvlist_t *auth, | |
1289 | const char *devpath, const char *devid, const char *tpl0) | |
1290 | { | |
1291 | int err = 0; | |
1292 | ||
1293 | if (version != DEV_SCHEME_VERSION0) { | |
0bd31011 | 1294 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1295 | return; |
1296 | } | |
1297 | ||
1298 | err |= nvlist_add_uint8(fmri_dev, FM_VERSION, version); | |
1299 | err |= nvlist_add_string(fmri_dev, FM_FMRI_SCHEME, FM_FMRI_SCHEME_DEV); | |
1300 | ||
1301 | if (auth != NULL) { | |
1302 | err |= nvlist_add_nvlist(fmri_dev, FM_FMRI_AUTHORITY, | |
1303 | (nvlist_t *)auth); | |
1304 | } | |
1305 | ||
1306 | err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_PATH, devpath); | |
1307 | ||
1308 | if (devid != NULL) | |
1309 | err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_ID, devid); | |
1310 | ||
1311 | if (tpl0 != NULL) | |
1312 | err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_TGTPTLUN0, tpl0); | |
1313 | ||
1314 | if (err) | |
0bd31011 | 1315 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1316 | |
1317 | } | |
1318 | ||
1319 | /* | |
1320 | * Set-up and validate the members of an cpu fmri according to: | |
1321 | * | |
1322 | * Member name Type Value | |
1323 | * ==================================================== | |
1324 | * version uint8_t 0 | |
1325 | * auth nvlist_t <auth> | |
1326 | * cpuid uint32_t <cpu_id> | |
1327 | * cpumask uint8_t <cpu_mask> | |
1328 | * serial uint64_t <serial_id> | |
1329 | * | |
1330 | * Note that auth, cpumask, serial are optional members. | |
1331 | * | |
1332 | */ | |
1333 | void | |
1334 | fm_fmri_cpu_set(nvlist_t *fmri_cpu, int version, const nvlist_t *auth, | |
1335 | uint32_t cpu_id, uint8_t *cpu_maskp, const char *serial_idp) | |
1336 | { | |
1337 | uint64_t *failedp = &erpt_kstat_data.fmri_set_failed.value.ui64; | |
1338 | ||
1339 | if (version < CPU_SCHEME_VERSION1) { | |
0bd31011 | 1340 | atomic_add_64(failedp, 1); |
7bdf406d TG |
1341 | return; |
1342 | } | |
1343 | ||
1344 | if (nvlist_add_uint8(fmri_cpu, FM_VERSION, version) != 0) { | |
0bd31011 | 1345 | atomic_add_64(failedp, 1); |
7bdf406d TG |
1346 | return; |
1347 | } | |
1348 | ||
1349 | if (nvlist_add_string(fmri_cpu, FM_FMRI_SCHEME, | |
1350 | FM_FMRI_SCHEME_CPU) != 0) { | |
0bd31011 | 1351 | atomic_add_64(failedp, 1); |
7bdf406d TG |
1352 | return; |
1353 | } | |
1354 | ||
1355 | if (auth != NULL && nvlist_add_nvlist(fmri_cpu, FM_FMRI_AUTHORITY, | |
1356 | (nvlist_t *)auth) != 0) | |
0bd31011 | 1357 | atomic_add_64(failedp, 1); |
7bdf406d TG |
1358 | |
1359 | if (nvlist_add_uint32(fmri_cpu, FM_FMRI_CPU_ID, cpu_id) != 0) | |
0bd31011 | 1360 | atomic_add_64(failedp, 1); |
7bdf406d TG |
1361 | |
1362 | if (cpu_maskp != NULL && nvlist_add_uint8(fmri_cpu, FM_FMRI_CPU_MASK, | |
1363 | *cpu_maskp) != 0) | |
0bd31011 | 1364 | atomic_add_64(failedp, 1); |
7bdf406d TG |
1365 | |
1366 | if (serial_idp == NULL || nvlist_add_string(fmri_cpu, | |
1367 | FM_FMRI_CPU_SERIAL_ID, (char *)serial_idp) != 0) | |
0bd31011 | 1368 | atomic_add_64(failedp, 1); |
7bdf406d TG |
1369 | } |
1370 | ||
1371 | /* | |
1372 | * Set-up and validate the members of a mem according to: | |
1373 | * | |
1374 | * Member name Type Value | |
1375 | * ==================================================== | |
1376 | * version uint8_t 0 | |
1377 | * auth nvlist_t <auth> [optional] | |
1378 | * unum string <unum> | |
1379 | * serial string <serial> [optional*] | |
1380 | * offset uint64_t <offset> [optional] | |
1381 | * | |
1382 | * * serial is required if offset is present | |
1383 | */ | |
1384 | void | |
1385 | fm_fmri_mem_set(nvlist_t *fmri, int version, const nvlist_t *auth, | |
1386 | const char *unum, const char *serial, uint64_t offset) | |
1387 | { | |
1388 | if (version != MEM_SCHEME_VERSION0) { | |
0bd31011 | 1389 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1390 | return; |
1391 | } | |
1392 | ||
1393 | if (!serial && (offset != (uint64_t)-1)) { | |
0bd31011 | 1394 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1395 | return; |
1396 | } | |
1397 | ||
1398 | if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0) { | |
0bd31011 | 1399 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1400 | return; |
1401 | } | |
1402 | ||
1403 | if (nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_MEM) != 0) { | |
0bd31011 | 1404 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1405 | return; |
1406 | } | |
1407 | ||
1408 | if (auth != NULL) { | |
1409 | if (nvlist_add_nvlist(fmri, FM_FMRI_AUTHORITY, | |
1410 | (nvlist_t *)auth) != 0) { | |
0bd31011 TG |
1411 | atomic_add_64( |
1412 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
7bdf406d TG |
1413 | } |
1414 | } | |
1415 | ||
1416 | if (nvlist_add_string(fmri, FM_FMRI_MEM_UNUM, unum) != 0) { | |
0bd31011 | 1417 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1418 | } |
1419 | ||
1420 | if (serial != NULL) { | |
1421 | if (nvlist_add_string_array(fmri, FM_FMRI_MEM_SERIAL_ID, | |
1422 | (char **)&serial, 1) != 0) { | |
0bd31011 TG |
1423 | atomic_add_64( |
1424 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
7bdf406d | 1425 | } |
0bd31011 TG |
1426 | if (offset != (uint64_t)-1) { |
1427 | if (nvlist_add_uint64(fmri, FM_FMRI_MEM_OFFSET, | |
1428 | offset) != 0) { | |
1429 | atomic_add_64(&erpt_kstat_data. | |
1430 | fmri_set_failed.value.ui64, 1); | |
1431 | } | |
7bdf406d TG |
1432 | } |
1433 | } | |
1434 | } | |
1435 | ||
1436 | void | |
1437 | fm_fmri_zfs_set(nvlist_t *fmri, int version, uint64_t pool_guid, | |
1438 | uint64_t vdev_guid) | |
1439 | { | |
1440 | if (version != ZFS_SCHEME_VERSION0) { | |
0bd31011 | 1441 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1442 | return; |
1443 | } | |
1444 | ||
1445 | if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0) { | |
0bd31011 | 1446 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1447 | return; |
1448 | } | |
1449 | ||
1450 | if (nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_ZFS) != 0) { | |
0bd31011 | 1451 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1452 | return; |
1453 | } | |
1454 | ||
1455 | if (nvlist_add_uint64(fmri, FM_FMRI_ZFS_POOL, pool_guid) != 0) { | |
0bd31011 | 1456 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); |
7bdf406d TG |
1457 | } |
1458 | ||
1459 | if (vdev_guid != 0) { | |
1460 | if (nvlist_add_uint64(fmri, FM_FMRI_ZFS_VDEV, vdev_guid) != 0) { | |
0bd31011 TG |
1461 | atomic_add_64( |
1462 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
7bdf406d TG |
1463 | } |
1464 | } | |
1465 | } | |
1466 | ||
1467 | uint64_t | |
1468 | fm_ena_increment(uint64_t ena) | |
1469 | { | |
1470 | uint64_t new_ena; | |
1471 | ||
1472 | switch (ENA_FORMAT(ena)) { | |
1473 | case FM_ENA_FMT1: | |
1474 | new_ena = ena + (1 << ENA_FMT1_GEN_SHFT); | |
1475 | break; | |
1476 | case FM_ENA_FMT2: | |
1477 | new_ena = ena + (1 << ENA_FMT2_GEN_SHFT); | |
1478 | break; | |
1479 | default: | |
1480 | new_ena = 0; | |
1481 | } | |
1482 | ||
1483 | return (new_ena); | |
1484 | } | |
1485 | ||
1486 | uint64_t | |
1487 | fm_ena_generate_cpu(uint64_t timestamp, processorid_t cpuid, uchar_t format) | |
1488 | { | |
1489 | uint64_t ena = 0; | |
1490 | ||
1491 | switch (format) { | |
1492 | case FM_ENA_FMT1: | |
1493 | if (timestamp) { | |
1494 | ena = (uint64_t)((format & ENA_FORMAT_MASK) | | |
1495 | ((cpuid << ENA_FMT1_CPUID_SHFT) & | |
1496 | ENA_FMT1_CPUID_MASK) | | |
1497 | ((timestamp << ENA_FMT1_TIME_SHFT) & | |
1498 | ENA_FMT1_TIME_MASK)); | |
1499 | } else { | |
1500 | ena = (uint64_t)((format & ENA_FORMAT_MASK) | | |
1501 | ((cpuid << ENA_FMT1_CPUID_SHFT) & | |
1502 | ENA_FMT1_CPUID_MASK) | | |
1503 | ((gethrtime() << ENA_FMT1_TIME_SHFT) & | |
1504 | ENA_FMT1_TIME_MASK)); | |
1505 | } | |
1506 | break; | |
1507 | case FM_ENA_FMT2: | |
1508 | ena = (uint64_t)((format & ENA_FORMAT_MASK) | | |
1509 | ((timestamp << ENA_FMT2_TIME_SHFT) & ENA_FMT2_TIME_MASK)); | |
1510 | break; | |
1511 | default: | |
1512 | break; | |
1513 | } | |
1514 | ||
1515 | return (ena); | |
1516 | } | |
1517 | ||
1518 | uint64_t | |
1519 | fm_ena_generate(uint64_t timestamp, uchar_t format) | |
1520 | { | |
1521 | uint64_t ena; | |
1522 | ||
1523 | kpreempt_disable(); | |
1524 | ena = fm_ena_generate_cpu(timestamp, getcpuid(), format); | |
1525 | kpreempt_enable(); | |
1526 | ||
1527 | return (ena); | |
1528 | } | |
1529 | ||
1530 | uint64_t | |
1531 | fm_ena_generation_get(uint64_t ena) | |
1532 | { | |
1533 | uint64_t gen; | |
1534 | ||
1535 | switch (ENA_FORMAT(ena)) { | |
1536 | case FM_ENA_FMT1: | |
1537 | gen = (ena & ENA_FMT1_GEN_MASK) >> ENA_FMT1_GEN_SHFT; | |
1538 | break; | |
1539 | case FM_ENA_FMT2: | |
1540 | gen = (ena & ENA_FMT2_GEN_MASK) >> ENA_FMT2_GEN_SHFT; | |
1541 | break; | |
1542 | default: | |
1543 | gen = 0; | |
1544 | break; | |
1545 | } | |
1546 | ||
1547 | return (gen); | |
1548 | } | |
1549 | ||
1550 | uchar_t | |
1551 | fm_ena_format_get(uint64_t ena) | |
1552 | { | |
1553 | ||
1554 | return (ENA_FORMAT(ena)); | |
1555 | } | |
1556 | ||
1557 | uint64_t | |
1558 | fm_ena_id_get(uint64_t ena) | |
1559 | { | |
1560 | uint64_t id; | |
1561 | ||
1562 | switch (ENA_FORMAT(ena)) { | |
1563 | case FM_ENA_FMT1: | |
1564 | id = (ena & ENA_FMT1_ID_MASK) >> ENA_FMT1_ID_SHFT; | |
1565 | break; | |
1566 | case FM_ENA_FMT2: | |
1567 | id = (ena & ENA_FMT2_ID_MASK) >> ENA_FMT2_ID_SHFT; | |
1568 | break; | |
1569 | default: | |
1570 | id = 0; | |
1571 | } | |
1572 | ||
1573 | return (id); | |
1574 | } | |
1575 | ||
1576 | uint64_t | |
1577 | fm_ena_time_get(uint64_t ena) | |
1578 | { | |
1579 | uint64_t time; | |
1580 | ||
1581 | switch (ENA_FORMAT(ena)) { | |
1582 | case FM_ENA_FMT1: | |
1583 | time = (ena & ENA_FMT1_TIME_MASK) >> ENA_FMT1_TIME_SHFT; | |
1584 | break; | |
1585 | case FM_ENA_FMT2: | |
1586 | time = (ena & ENA_FMT2_TIME_MASK) >> ENA_FMT2_TIME_SHFT; | |
1587 | break; | |
1588 | default: | |
1589 | time = 0; | |
1590 | } | |
1591 | ||
1592 | return (time); | |
1593 | } | |
1594 | ||
1595 | #ifdef _KERNEL | |
1596 | void | |
1597 | fm_init(void) | |
1598 | { | |
1599 | zevent_len_cur = 0; | |
1600 | zevent_flags = 0; | |
1601 | ||
1602 | if (zfs_zevent_len_max == 0) | |
1603 | zfs_zevent_len_max = ERPT_MAX_ERRS * MAX(max_ncpus, 4); | |
1604 | ||
1605 | /* Initialize zevent allocation and generation kstats */ | |
1606 | fm_ksp = kstat_create("zfs", 0, "fm", "misc", KSTAT_TYPE_NAMED, | |
1607 | sizeof (struct erpt_kstat) / sizeof (kstat_named_t), | |
1608 | KSTAT_FLAG_VIRTUAL); | |
1609 | ||
1610 | if (fm_ksp != NULL) { | |
1611 | fm_ksp->ks_data = &erpt_kstat_data; | |
1612 | kstat_install(fm_ksp); | |
1613 | } else { | |
1614 | cmn_err(CE_NOTE, "failed to create fm/misc kstat\n"); | |
1615 | } | |
1616 | ||
1617 | mutex_init(&zevent_lock, NULL, MUTEX_DEFAULT, NULL); | |
1618 | list_create(&zevent_list, sizeof (zevent_t), | |
1619 | offsetof(zevent_t, ev_node)); | |
1620 | cv_init(&zevent_cv, NULL, CV_DEFAULT, NULL); | |
1621 | } | |
1622 | ||
1623 | void | |
1624 | fm_fini(void) | |
1625 | { | |
1626 | int count; | |
1627 | ||
1628 | zfs_zevent_drain_all(&count); | |
1629 | ||
1630 | mutex_enter(&zevent_lock); | |
1631 | cv_broadcast(&zevent_cv); | |
1632 | ||
1633 | zevent_flags |= ZEVENT_SHUTDOWN; | |
1634 | while (zevent_waiters > 0) { | |
1635 | mutex_exit(&zevent_lock); | |
1636 | schedule(); | |
1637 | mutex_enter(&zevent_lock); | |
1638 | } | |
1639 | mutex_exit(&zevent_lock); | |
1640 | ||
1641 | cv_destroy(&zevent_cv); | |
1642 | list_destroy(&zevent_list); | |
1643 | mutex_destroy(&zevent_lock); | |
1644 | ||
1645 | if (fm_ksp != NULL) { | |
1646 | kstat_delete(fm_ksp); | |
1647 | fm_ksp = NULL; | |
1648 | } | |
1649 | } | |
1650 | ||
1651 | module_param(zfs_zevent_len_max, int, 0644); | |
1652 | MODULE_PARM_DESC(zfs_zevent_len_max, "Max event queue length"); | |
1653 | ||
1654 | module_param(zfs_zevent_cols, int, 0644); | |
1655 | MODULE_PARM_DESC(zfs_zevent_cols, "Max event column width"); | |
1656 | ||
1657 | module_param(zfs_zevent_console, int, 0644); | |
1658 | MODULE_PARM_DESC(zfs_zevent_console, "Log events to the console"); | |
1659 | ||
1660 | #endif /* _KERNEL */ |