]>
Commit | Line | Data |
---|---|---|
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 | |
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> | |
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 | 60 | #include <sys/compress.h> |
fa42225a BB |
61 | #include <sys/sunddi.h> |
62 | #include <sys/systeminfo.h> | |
fa42225a BB |
63 | #include <sys/fm/util.h> |
64 | #include <sys/fm/protocol.h> | |
26685276 BB |
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> | |
fa42225a | 78 | |
c409e464 BB |
79 | int zfs_zevent_len_max = 0; |
80 | int zfs_zevent_cols = 80; | |
81 | int zfs_zevent_console = 0; | |
fa42225a | 82 | |
26685276 BB |
83 | static int zevent_len_cur = 0; |
84 | static int zevent_waiters = 0; | |
85 | static int zevent_flags = 0; | |
fa42225a | 86 | |
26685276 BB |
87 | static kmutex_t zevent_lock; |
88 | static list_t zevent_list; | |
89 | static kcondvar_t zevent_cv; | |
90 | #endif /* _KERNEL */ | |
fa42225a | 91 | |
428870ff BB |
92 | extern void fastreboot_disable_highpil(void); |
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 */ | |
103 | }; | |
104 | ||
105 | static struct erpt_kstat erpt_kstat_data = { | |
106 | { "erpt-dropped", KSTAT_DATA_UINT64 }, | |
107 | { "erpt-set-failed", KSTAT_DATA_UINT64 }, | |
108 | { "fmri-set-failed", KSTAT_DATA_UINT64 }, | |
109 | { "payload-set-failed", KSTAT_DATA_UINT64 } | |
110 | }; | |
111 | ||
26685276 | 112 | kstat_t *fm_ksp; |
fa42225a | 113 | |
26685276 | 114 | #ifdef _KERNEL |
fa42225a BB |
115 | |
116 | /* | |
117 | * Formatting utility function for fm_nvprintr. We attempt to wrap chunks of | |
118 | * output so they aren't split across console lines, and return the end column. | |
119 | */ | |
120 | /*PRINTFLIKE4*/ | |
121 | static int | |
122 | fm_printf(int depth, int c, int cols, const char *format, ...) | |
123 | { | |
124 | va_list ap; | |
125 | int width; | |
126 | char c1; | |
127 | ||
128 | va_start(ap, format); | |
129 | width = vsnprintf(&c1, sizeof (c1), format, ap); | |
130 | va_end(ap); | |
131 | ||
132 | if (c + width >= cols) { | |
26685276 | 133 | console_printf("\n"); |
fa42225a BB |
134 | c = 0; |
135 | if (format[0] != ' ' && depth > 0) { | |
136 | console_printf(" "); | |
137 | c++; | |
138 | } | |
139 | } | |
140 | ||
141 | va_start(ap, format); | |
142 | console_vprintf(format, ap); | |
143 | va_end(ap); | |
144 | ||
145 | return ((c + width) % cols); | |
146 | } | |
147 | ||
148 | /* | |
149 | * Recursively print a nvlist in the specified column width and return the | |
150 | * column we end up in. This function is called recursively by fm_nvprint(), | |
151 | * below. We generically format the entire nvpair using hexadecimal | |
152 | * integers and strings, and elide any integer arrays. Arrays are basically | |
153 | * used for cache dumps right now, so we suppress them so as not to overwhelm | |
154 | * the amount of console output we produce at panic time. This can be further | |
155 | * enhanced as FMA technology grows based upon the needs of consumers. All | |
156 | * FMA telemetry is logged using the dump device transport, so the console | |
157 | * output serves only as a fallback in case this procedure is unsuccessful. | |
158 | */ | |
159 | static int | |
160 | fm_nvprintr(nvlist_t *nvl, int d, int c, int cols) | |
161 | { | |
162 | nvpair_t *nvp; | |
163 | ||
164 | for (nvp = nvlist_next_nvpair(nvl, NULL); | |
165 | nvp != NULL; nvp = nvlist_next_nvpair(nvl, nvp)) { | |
166 | ||
167 | data_type_t type = nvpair_type(nvp); | |
168 | const char *name = nvpair_name(nvp); | |
169 | ||
170 | boolean_t b; | |
171 | uint8_t i8; | |
172 | uint16_t i16; | |
173 | uint32_t i32; | |
174 | uint64_t i64; | |
175 | char *str; | |
176 | nvlist_t *cnv; | |
177 | ||
178 | if (strcmp(name, FM_CLASS) == 0) | |
179 | continue; /* already printed by caller */ | |
180 | ||
181 | c = fm_printf(d, c, cols, " %s=", name); | |
182 | ||
183 | switch (type) { | |
184 | case DATA_TYPE_BOOLEAN: | |
185 | c = fm_printf(d + 1, c, cols, " 1"); | |
186 | break; | |
187 | ||
188 | case DATA_TYPE_BOOLEAN_VALUE: | |
189 | (void) nvpair_value_boolean_value(nvp, &b); | |
190 | c = fm_printf(d + 1, c, cols, b ? "1" : "0"); | |
191 | break; | |
192 | ||
193 | case DATA_TYPE_BYTE: | |
194 | (void) nvpair_value_byte(nvp, &i8); | |
26685276 | 195 | c = fm_printf(d + 1, c, cols, "0x%x", i8); |
fa42225a BB |
196 | break; |
197 | ||
198 | case DATA_TYPE_INT8: | |
199 | (void) nvpair_value_int8(nvp, (void *)&i8); | |
26685276 | 200 | c = fm_printf(d + 1, c, cols, "0x%x", i8); |
fa42225a BB |
201 | break; |
202 | ||
203 | case DATA_TYPE_UINT8: | |
204 | (void) nvpair_value_uint8(nvp, &i8); | |
26685276 | 205 | c = fm_printf(d + 1, c, cols, "0x%x", i8); |
fa42225a BB |
206 | break; |
207 | ||
208 | case DATA_TYPE_INT16: | |
209 | (void) nvpair_value_int16(nvp, (void *)&i16); | |
26685276 | 210 | c = fm_printf(d + 1, c, cols, "0x%x", i16); |
fa42225a BB |
211 | break; |
212 | ||
213 | case DATA_TYPE_UINT16: | |
214 | (void) nvpair_value_uint16(nvp, &i16); | |
26685276 | 215 | c = fm_printf(d + 1, c, cols, "0x%x", i16); |
fa42225a BB |
216 | break; |
217 | ||
218 | case DATA_TYPE_INT32: | |
219 | (void) nvpair_value_int32(nvp, (void *)&i32); | |
26685276 | 220 | c = fm_printf(d + 1, c, cols, "0x%x", i32); |
fa42225a BB |
221 | break; |
222 | ||
223 | case DATA_TYPE_UINT32: | |
224 | (void) nvpair_value_uint32(nvp, &i32); | |
26685276 | 225 | c = fm_printf(d + 1, c, cols, "0x%x", i32); |
fa42225a BB |
226 | break; |
227 | ||
228 | case DATA_TYPE_INT64: | |
229 | (void) nvpair_value_int64(nvp, (void *)&i64); | |
26685276 | 230 | c = fm_printf(d + 1, c, cols, "0x%llx", |
fa42225a BB |
231 | (u_longlong_t)i64); |
232 | break; | |
233 | ||
234 | case DATA_TYPE_UINT64: | |
235 | (void) nvpair_value_uint64(nvp, &i64); | |
26685276 | 236 | c = fm_printf(d + 1, c, cols, "0x%llx", |
fa42225a BB |
237 | (u_longlong_t)i64); |
238 | break; | |
239 | ||
240 | case DATA_TYPE_HRTIME: | |
241 | (void) nvpair_value_hrtime(nvp, (void *)&i64); | |
26685276 | 242 | c = fm_printf(d + 1, c, cols, "0x%llx", |
fa42225a BB |
243 | (u_longlong_t)i64); |
244 | break; | |
245 | ||
246 | case DATA_TYPE_STRING: | |
247 | (void) nvpair_value_string(nvp, &str); | |
248 | c = fm_printf(d + 1, c, cols, "\"%s\"", | |
249 | str ? str : "<NULL>"); | |
250 | break; | |
251 | ||
252 | case DATA_TYPE_NVLIST: | |
253 | c = fm_printf(d + 1, c, cols, "["); | |
254 | (void) nvpair_value_nvlist(nvp, &cnv); | |
255 | c = fm_nvprintr(cnv, d + 1, c, cols); | |
256 | c = fm_printf(d + 1, c, cols, " ]"); | |
257 | break; | |
258 | ||
259 | case DATA_TYPE_NVLIST_ARRAY: { | |
260 | nvlist_t **val; | |
261 | uint_t i, nelem; | |
262 | ||
263 | c = fm_printf(d + 1, c, cols, "["); | |
264 | (void) nvpair_value_nvlist_array(nvp, &val, &nelem); | |
265 | for (i = 0; i < nelem; i++) { | |
266 | c = fm_nvprintr(val[i], d + 1, c, cols); | |
267 | } | |
268 | c = fm_printf(d + 1, c, cols, " ]"); | |
269 | } | |
270 | break; | |
271 | ||
26685276 BB |
272 | case DATA_TYPE_INT8_ARRAY: { |
273 | int8_t *val; | |
274 | uint_t i, nelem; | |
275 | ||
276 | c = fm_printf(d + 1, c, cols, "[ "); | |
277 | (void) nvpair_value_int8_array(nvp, &val, &nelem); | |
278 | for (i = 0; i < nelem; i++) | |
279 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
280 | (u_longlong_t)val[i]); | |
281 | ||
282 | c = fm_printf(d + 1, c, cols, "]"); | |
283 | break; | |
284 | } | |
285 | ||
286 | case DATA_TYPE_UINT8_ARRAY: { | |
287 | uint8_t *val; | |
288 | uint_t i, nelem; | |
289 | ||
290 | c = fm_printf(d + 1, c, cols, "[ "); | |
291 | (void) nvpair_value_uint8_array(nvp, &val, &nelem); | |
292 | for (i = 0; i < nelem; i++) | |
293 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
294 | (u_longlong_t)val[i]); | |
295 | ||
296 | c = fm_printf(d + 1, c, cols, "]"); | |
297 | break; | |
298 | } | |
299 | ||
300 | case DATA_TYPE_INT16_ARRAY: { | |
301 | int16_t *val; | |
302 | uint_t i, nelem; | |
303 | ||
304 | c = fm_printf(d + 1, c, cols, "[ "); | |
305 | (void) nvpair_value_int16_array(nvp, &val, &nelem); | |
306 | for (i = 0; i < nelem; i++) | |
307 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
308 | (u_longlong_t)val[i]); | |
309 | ||
310 | c = fm_printf(d + 1, c, cols, "]"); | |
311 | break; | |
312 | } | |
313 | ||
314 | case DATA_TYPE_UINT16_ARRAY: { | |
315 | uint16_t *val; | |
316 | uint_t i, nelem; | |
317 | ||
318 | c = fm_printf(d + 1, c, cols, "[ "); | |
319 | (void) nvpair_value_uint16_array(nvp, &val, &nelem); | |
320 | for (i = 0; i < nelem; i++) | |
321 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
322 | (u_longlong_t)val[i]); | |
323 | ||
324 | c = fm_printf(d + 1, c, cols, "]"); | |
325 | break; | |
326 | } | |
327 | ||
328 | case DATA_TYPE_INT32_ARRAY: { | |
329 | int32_t *val; | |
330 | uint_t i, nelem; | |
331 | ||
332 | c = fm_printf(d + 1, c, cols, "[ "); | |
333 | (void) nvpair_value_int32_array(nvp, &val, &nelem); | |
334 | for (i = 0; i < nelem; i++) | |
335 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
336 | (u_longlong_t)val[i]); | |
337 | ||
338 | c = fm_printf(d + 1, c, cols, "]"); | |
339 | break; | |
340 | } | |
341 | ||
342 | case DATA_TYPE_UINT32_ARRAY: { | |
343 | uint32_t *val; | |
344 | uint_t i, nelem; | |
345 | ||
346 | c = fm_printf(d + 1, c, cols, "[ "); | |
347 | (void) nvpair_value_uint32_array(nvp, &val, &nelem); | |
348 | for (i = 0; i < nelem; i++) | |
349 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
350 | (u_longlong_t)val[i]); | |
351 | ||
352 | c = fm_printf(d + 1, c, cols, "]"); | |
353 | break; | |
354 | } | |
355 | ||
356 | case DATA_TYPE_INT64_ARRAY: { | |
357 | int64_t *val; | |
358 | uint_t i, nelem; | |
359 | ||
360 | c = fm_printf(d + 1, c, cols, "[ "); | |
361 | (void) nvpair_value_int64_array(nvp, &val, &nelem); | |
362 | for (i = 0; i < nelem; i++) | |
363 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
364 | (u_longlong_t)val[i]); | |
365 | ||
366 | c = fm_printf(d + 1, c, cols, "]"); | |
367 | break; | |
368 | } | |
369 | ||
370 | case DATA_TYPE_UINT64_ARRAY: { | |
371 | uint64_t *val; | |
372 | uint_t i, nelem; | |
373 | ||
374 | c = fm_printf(d + 1, c, cols, "[ "); | |
375 | (void) nvpair_value_uint64_array(nvp, &val, &nelem); | |
376 | for (i = 0; i < nelem; i++) | |
377 | c = fm_printf(d + 1, c, cols, "0x%llx ", | |
378 | (u_longlong_t)val[i]); | |
379 | ||
380 | c = fm_printf(d + 1, c, cols, "]"); | |
381 | break; | |
382 | } | |
383 | ||
384 | case DATA_TYPE_STRING_ARRAY: | |
fa42225a BB |
385 | case DATA_TYPE_BOOLEAN_ARRAY: |
386 | case DATA_TYPE_BYTE_ARRAY: | |
fa42225a BB |
387 | c = fm_printf(d + 1, c, cols, "[...]"); |
388 | break; | |
26685276 | 389 | |
fa42225a BB |
390 | case DATA_TYPE_UNKNOWN: |
391 | c = fm_printf(d + 1, c, cols, "<unknown>"); | |
392 | break; | |
393 | } | |
394 | } | |
395 | ||
396 | return (c); | |
397 | } | |
398 | ||
399 | void | |
400 | fm_nvprint(nvlist_t *nvl) | |
401 | { | |
402 | char *class; | |
403 | int c = 0; | |
404 | ||
26685276 | 405 | console_printf("\n"); |
fa42225a BB |
406 | |
407 | if (nvlist_lookup_string(nvl, FM_CLASS, &class) == 0) | |
c409e464 | 408 | c = fm_printf(0, c, zfs_zevent_cols, "%s", class); |
fa42225a | 409 | |
c409e464 | 410 | if (fm_nvprintr(nvl, 0, c, zfs_zevent_cols) != 0) |
fa42225a BB |
411 | console_printf("\n"); |
412 | ||
413 | console_printf("\n"); | |
414 | } | |
415 | ||
26685276 BB |
416 | static zevent_t * |
417 | zfs_zevent_alloc(void) | |
418 | { | |
419 | zevent_t *ev; | |
420 | ||
421 | ev = kmem_zalloc(sizeof(zevent_t), KM_SLEEP); | |
422 | if (ev == NULL) | |
423 | return NULL; | |
424 | ||
425 | list_create(&ev->ev_ze_list, sizeof(zfs_zevent_t), | |
426 | offsetof(zfs_zevent_t, ze_node)); | |
427 | list_link_init(&ev->ev_node); | |
428 | ||
429 | return ev; | |
430 | } | |
431 | ||
432 | static void | |
433 | zfs_zevent_free(zevent_t *ev) | |
434 | { | |
435 | /* Run provided cleanup callback */ | |
436 | ev->ev_cb(ev->ev_nvl, ev->ev_detector); | |
437 | ||
438 | list_destroy(&ev->ev_ze_list); | |
439 | kmem_free(ev, sizeof(zevent_t)); | |
440 | } | |
441 | ||
442 | static void | |
443 | zfs_zevent_drain(zevent_t *ev) | |
444 | { | |
445 | zfs_zevent_t *ze; | |
446 | ||
447 | ASSERT(MUTEX_HELD(&zevent_lock)); | |
448 | list_remove(&zevent_list, ev); | |
449 | ||
450 | /* Remove references to this event in all private file data */ | |
451 | while ((ze = list_head(&ev->ev_ze_list)) != NULL) { | |
452 | list_remove(&ev->ev_ze_list, ze); | |
453 | ze->ze_zevent = NULL; | |
454 | ze->ze_dropped++; | |
455 | } | |
456 | ||
457 | zfs_zevent_free(ev); | |
458 | } | |
459 | ||
fa42225a | 460 | void |
26685276 | 461 | zfs_zevent_drain_all(int *count) |
fa42225a | 462 | { |
26685276 | 463 | zevent_t *ev; |
fa42225a | 464 | |
26685276 BB |
465 | mutex_enter(&zevent_lock); |
466 | while ((ev = list_head(&zevent_list)) != NULL) | |
467 | zfs_zevent_drain(ev); | |
468 | ||
469 | *count = zevent_len_cur; | |
470 | zevent_len_cur = 0; | |
471 | mutex_exit(&zevent_lock); | |
fa42225a BB |
472 | } |
473 | ||
572e2857 | 474 | /* |
26685276 BB |
475 | * New zevents are inserted at the head. If the maximum queue |
476 | * length is exceeded a zevent will be drained from the tail. | |
477 | * As part of this any user space processes which currently have | |
478 | * a reference to this zevent_t in their private data will have | |
479 | * this reference set to NULL. | |
572e2857 | 480 | */ |
26685276 BB |
481 | static void |
482 | zfs_zevent_insert(zevent_t *ev) | |
572e2857 | 483 | { |
26685276 BB |
484 | mutex_enter(&zevent_lock); |
485 | list_insert_head(&zevent_list, ev); | |
c409e464 | 486 | if (zevent_len_cur >= zfs_zevent_len_max) |
26685276 | 487 | zfs_zevent_drain(list_tail(&zevent_list)); |
572e2857 | 488 | else |
26685276 BB |
489 | zevent_len_cur++; |
490 | ||
491 | mutex_exit(&zevent_lock); | |
572e2857 BB |
492 | } |
493 | ||
fa42225a | 494 | /* |
26685276 | 495 | * Post a zevent |
fa42225a BB |
496 | */ |
497 | void | |
26685276 | 498 | zfs_zevent_post(nvlist_t *nvl, nvlist_t *detector, zevent_cb_t *cb) |
fa42225a | 499 | { |
26685276 BB |
500 | int64_t tv_array[2]; |
501 | timestruc_t tv; | |
502 | size_t nvl_size = 0; | |
503 | zevent_t *ev; | |
fa42225a | 504 | |
26685276 BB |
505 | gethrestime(&tv); |
506 | tv_array[0] = tv.tv_sec; | |
507 | tv_array[1] = tv.tv_nsec; | |
508 | if (nvlist_add_int64_array(nvl, FM_EREPORT_TIME, tv_array, 2)) { | |
509 | atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1); | |
510 | return; | |
511 | } | |
fa42225a | 512 | |
26685276 BB |
513 | (void) nvlist_size(nvl, &nvl_size, NV_ENCODE_NATIVE); |
514 | if (nvl_size > ERPT_DATA_SZ || nvl_size == 0) { | |
515 | atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1); | |
516 | return; | |
fa42225a BB |
517 | } |
518 | ||
c409e464 | 519 | if (zfs_zevent_console) |
26685276 | 520 | fm_nvprint(nvl); |
fa42225a | 521 | |
26685276 BB |
522 | ev = zfs_zevent_alloc(); |
523 | if (ev == NULL) { | |
524 | atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1); | |
525 | return; | |
526 | } | |
fa42225a | 527 | |
26685276 BB |
528 | ev->ev_nvl = nvl; |
529 | ev->ev_detector = detector; | |
530 | ev->ev_cb = cb; | |
531 | zfs_zevent_insert(ev); | |
532 | cv_broadcast(&zevent_cv); | |
533 | } | |
fa42225a | 534 | |
26685276 BB |
535 | static int |
536 | zfs_zevent_minor_to_state(minor_t minor, zfs_zevent_t **ze) | |
537 | { | |
538 | *ze = zfsdev_get_state(minor, ZST_ZEVENT); | |
539 | if (*ze == NULL) | |
540 | return (EBADF); | |
fa42225a | 541 | |
26685276 BB |
542 | return (0); |
543 | } | |
fa42225a | 544 | |
26685276 BB |
545 | int |
546 | zfs_zevent_fd_hold(int fd, minor_t *minorp, zfs_zevent_t **ze) | |
547 | { | |
548 | file_t *fp; | |
549 | int error; | |
550 | ||
551 | fp = getf(fd); | |
552 | if (fp == NULL) | |
553 | return (EBADF); | |
554 | ||
555 | *minorp = zfsdev_getminor(fp->f_file); | |
556 | error = zfs_zevent_minor_to_state(*minorp, ze); | |
557 | ||
558 | if (error) | |
559 | zfs_zevent_fd_rele(fd); | |
560 | ||
561 | return (error); | |
562 | } | |
563 | ||
564 | void | |
565 | zfs_zevent_fd_rele(int fd) | |
566 | { | |
567 | releasef(fd); | |
fa42225a BB |
568 | } |
569 | ||
570 | /* | |
baa40d45 BB |
571 | * Get the next zevent in the stream and place a copy in 'event'. This |
572 | * may fail with ENOMEM if the encoded nvlist size exceeds the passed | |
573 | * 'event_size'. In this case the stream pointer is not advanced and | |
574 | * and 'event_size' is set to the minimum required buffer size. | |
fa42225a | 575 | */ |
26685276 | 576 | int |
baa40d45 BB |
577 | zfs_zevent_next(zfs_zevent_t *ze, nvlist_t **event, uint64_t *event_size, |
578 | uint64_t *dropped) | |
fa42225a | 579 | { |
26685276 | 580 | zevent_t *ev; |
baa40d45 BB |
581 | size_t size; |
582 | int error = 0; | |
26685276 BB |
583 | |
584 | mutex_enter(&zevent_lock); | |
585 | if (ze->ze_zevent == NULL) { | |
586 | /* New stream start at the beginning/tail */ | |
587 | ev = list_tail(&zevent_list); | |
588 | if (ev == NULL) { | |
589 | error = ENOENT; | |
590 | goto out; | |
591 | } | |
fa42225a | 592 | } else { |
26685276 BB |
593 | /* Existing stream continue with the next element and remove |
594 | * ourselves from the wait queue for the previous element */ | |
595 | ev = list_prev(&zevent_list, ze->ze_zevent); | |
596 | if (ev == NULL) { | |
597 | error = ENOENT; | |
598 | goto out; | |
599 | } | |
baa40d45 | 600 | } |
26685276 | 601 | |
baa40d45 BB |
602 | VERIFY(nvlist_size(ev->ev_nvl, &size, NV_ENCODE_NATIVE) == 0); |
603 | if (size > *event_size) { | |
604 | *event_size = size; | |
605 | error = ENOMEM; | |
606 | goto out; | |
fa42225a BB |
607 | } |
608 | ||
baa40d45 BB |
609 | if (ze->ze_zevent) |
610 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
611 | ||
26685276 BB |
612 | ze->ze_zevent = ev; |
613 | list_insert_head(&ev->ev_ze_list, ze); | |
614 | nvlist_dup(ev->ev_nvl, event, KM_SLEEP); | |
615 | *dropped = ze->ze_dropped; | |
616 | ze->ze_dropped = 0; | |
617 | out: | |
618 | mutex_exit(&zevent_lock); | |
fa42225a | 619 | |
26685276 BB |
620 | return error; |
621 | } | |
622 | ||
623 | int | |
624 | zfs_zevent_wait(zfs_zevent_t *ze) | |
625 | { | |
626 | int error = 0; | |
627 | ||
628 | mutex_enter(&zevent_lock); | |
fa42225a | 629 | |
26685276 BB |
630 | if (zevent_flags & ZEVENT_SHUTDOWN) { |
631 | error = ESHUTDOWN; | |
632 | goto out; | |
fa42225a BB |
633 | } |
634 | ||
26685276 BB |
635 | zevent_waiters++; |
636 | cv_wait_interruptible(&zevent_cv, &zevent_lock); | |
637 | if (issig(JUSTLOOKING)) | |
638 | error = EINTR; | |
639 | ||
640 | zevent_waiters--; | |
641 | out: | |
642 | mutex_exit(&zevent_lock); | |
643 | ||
644 | return error; | |
fa42225a BB |
645 | } |
646 | ||
fa42225a | 647 | void |
26685276 | 648 | zfs_zevent_init(zfs_zevent_t **zep) |
fa42225a | 649 | { |
26685276 | 650 | zfs_zevent_t *ze; |
fa42225a | 651 | |
26685276 BB |
652 | ze = *zep = kmem_zalloc(sizeof (zfs_zevent_t), KM_SLEEP); |
653 | list_link_init(&ze->ze_node); | |
654 | } | |
fa42225a | 655 | |
26685276 BB |
656 | void |
657 | zfs_zevent_destroy(zfs_zevent_t *ze) | |
658 | { | |
659 | mutex_enter(&zevent_lock); | |
660 | if (ze->ze_zevent) | |
661 | list_remove(&ze->ze_zevent->ev_ze_list, ze); | |
662 | mutex_exit(&zevent_lock); | |
fa42225a | 663 | |
26685276 | 664 | kmem_free(ze, sizeof (zfs_zevent_t)); |
fa42225a | 665 | } |
26685276 | 666 | #endif /* _KERNEL */ |
fa42225a BB |
667 | |
668 | /* | |
669 | * Wrapppers for FM nvlist allocators | |
670 | */ | |
671 | /* ARGSUSED */ | |
672 | static void * | |
673 | i_fm_alloc(nv_alloc_t *nva, size_t size) | |
674 | { | |
675 | return (kmem_zalloc(size, KM_SLEEP)); | |
676 | } | |
677 | ||
678 | /* ARGSUSED */ | |
679 | static void | |
680 | i_fm_free(nv_alloc_t *nva, void *buf, size_t size) | |
681 | { | |
682 | kmem_free(buf, size); | |
683 | } | |
684 | ||
685 | const nv_alloc_ops_t fm_mem_alloc_ops = { | |
686 | NULL, | |
687 | NULL, | |
688 | i_fm_alloc, | |
689 | i_fm_free, | |
690 | NULL | |
691 | }; | |
692 | ||
693 | /* | |
694 | * Create and initialize a new nv_alloc_t for a fixed buffer, buf. A pointer | |
695 | * to the newly allocated nv_alloc_t structure is returned upon success or NULL | |
696 | * is returned to indicate that the nv_alloc structure could not be created. | |
697 | */ | |
698 | nv_alloc_t * | |
699 | fm_nva_xcreate(char *buf, size_t bufsz) | |
700 | { | |
701 | nv_alloc_t *nvhdl = kmem_zalloc(sizeof (nv_alloc_t), KM_SLEEP); | |
702 | ||
703 | if (bufsz == 0 || nv_alloc_init(nvhdl, nv_fixed_ops, buf, bufsz) != 0) { | |
704 | kmem_free(nvhdl, sizeof (nv_alloc_t)); | |
705 | return (NULL); | |
706 | } | |
707 | ||
708 | return (nvhdl); | |
709 | } | |
710 | ||
711 | /* | |
712 | * Destroy a previously allocated nv_alloc structure. The fixed buffer | |
713 | * associated with nva must be freed by the caller. | |
714 | */ | |
715 | void | |
716 | fm_nva_xdestroy(nv_alloc_t *nva) | |
717 | { | |
718 | nv_alloc_fini(nva); | |
719 | kmem_free(nva, sizeof (nv_alloc_t)); | |
720 | } | |
721 | ||
722 | /* | |
723 | * Create a new nv list. A pointer to a new nv list structure is returned | |
724 | * upon success or NULL is returned to indicate that the structure could | |
725 | * not be created. The newly created nv list is created and managed by the | |
726 | * operations installed in nva. If nva is NULL, the default FMA nva | |
727 | * operations are installed and used. | |
728 | * | |
729 | * When called from the kernel and nva == NULL, this function must be called | |
730 | * from passive kernel context with no locks held that can prevent a | |
731 | * sleeping memory allocation from occurring. Otherwise, this function may | |
732 | * be called from other kernel contexts as long a valid nva created via | |
733 | * fm_nva_create() is supplied. | |
734 | */ | |
735 | nvlist_t * | |
736 | fm_nvlist_create(nv_alloc_t *nva) | |
737 | { | |
738 | int hdl_alloced = 0; | |
739 | nvlist_t *nvl; | |
740 | nv_alloc_t *nvhdl; | |
741 | ||
742 | if (nva == NULL) { | |
743 | nvhdl = kmem_zalloc(sizeof (nv_alloc_t), KM_SLEEP); | |
744 | ||
745 | if (nv_alloc_init(nvhdl, &fm_mem_alloc_ops, NULL, 0) != 0) { | |
746 | kmem_free(nvhdl, sizeof (nv_alloc_t)); | |
747 | return (NULL); | |
748 | } | |
749 | hdl_alloced = 1; | |
750 | } else { | |
751 | nvhdl = nva; | |
752 | } | |
753 | ||
754 | if (nvlist_xalloc(&nvl, NV_UNIQUE_NAME, nvhdl) != 0) { | |
755 | if (hdl_alloced) { | |
fa42225a | 756 | nv_alloc_fini(nvhdl); |
572e2857 | 757 | kmem_free(nvhdl, sizeof (nv_alloc_t)); |
fa42225a BB |
758 | } |
759 | return (NULL); | |
760 | } | |
761 | ||
762 | return (nvl); | |
763 | } | |
764 | ||
765 | /* | |
766 | * Destroy a previously allocated nvlist structure. flag indicates whether | |
767 | * or not the associated nva structure should be freed (FM_NVA_FREE) or | |
768 | * retained (FM_NVA_RETAIN). Retaining the nv alloc structure allows | |
769 | * it to be re-used for future nvlist creation operations. | |
770 | */ | |
771 | void | |
772 | fm_nvlist_destroy(nvlist_t *nvl, int flag) | |
773 | { | |
774 | nv_alloc_t *nva = nvlist_lookup_nv_alloc(nvl); | |
775 | ||
776 | nvlist_free(nvl); | |
777 | ||
778 | if (nva != NULL) { | |
779 | if (flag == FM_NVA_FREE) | |
780 | fm_nva_xdestroy(nva); | |
781 | } | |
782 | } | |
783 | ||
784 | int | |
785 | i_fm_payload_set(nvlist_t *payload, const char *name, va_list ap) | |
786 | { | |
787 | int nelem, ret = 0; | |
788 | data_type_t type; | |
789 | ||
790 | while (ret == 0 && name != NULL) { | |
791 | type = va_arg(ap, data_type_t); | |
792 | switch (type) { | |
793 | case DATA_TYPE_BYTE: | |
794 | ret = nvlist_add_byte(payload, name, | |
795 | va_arg(ap, uint_t)); | |
796 | break; | |
797 | case DATA_TYPE_BYTE_ARRAY: | |
798 | nelem = va_arg(ap, int); | |
799 | ret = nvlist_add_byte_array(payload, name, | |
800 | va_arg(ap, uchar_t *), nelem); | |
801 | break; | |
802 | case DATA_TYPE_BOOLEAN_VALUE: | |
803 | ret = nvlist_add_boolean_value(payload, name, | |
804 | va_arg(ap, boolean_t)); | |
805 | break; | |
806 | case DATA_TYPE_BOOLEAN_ARRAY: | |
807 | nelem = va_arg(ap, int); | |
808 | ret = nvlist_add_boolean_array(payload, name, | |
809 | va_arg(ap, boolean_t *), nelem); | |
810 | break; | |
811 | case DATA_TYPE_INT8: | |
812 | ret = nvlist_add_int8(payload, name, | |
813 | va_arg(ap, int)); | |
814 | break; | |
815 | case DATA_TYPE_INT8_ARRAY: | |
816 | nelem = va_arg(ap, int); | |
817 | ret = nvlist_add_int8_array(payload, name, | |
818 | va_arg(ap, int8_t *), nelem); | |
819 | break; | |
820 | case DATA_TYPE_UINT8: | |
821 | ret = nvlist_add_uint8(payload, name, | |
822 | va_arg(ap, uint_t)); | |
823 | break; | |
824 | case DATA_TYPE_UINT8_ARRAY: | |
825 | nelem = va_arg(ap, int); | |
826 | ret = nvlist_add_uint8_array(payload, name, | |
827 | va_arg(ap, uint8_t *), nelem); | |
828 | break; | |
829 | case DATA_TYPE_INT16: | |
830 | ret = nvlist_add_int16(payload, name, | |
831 | va_arg(ap, int)); | |
832 | break; | |
833 | case DATA_TYPE_INT16_ARRAY: | |
834 | nelem = va_arg(ap, int); | |
835 | ret = nvlist_add_int16_array(payload, name, | |
836 | va_arg(ap, int16_t *), nelem); | |
837 | break; | |
838 | case DATA_TYPE_UINT16: | |
839 | ret = nvlist_add_uint16(payload, name, | |
840 | va_arg(ap, uint_t)); | |
841 | break; | |
842 | case DATA_TYPE_UINT16_ARRAY: | |
843 | nelem = va_arg(ap, int); | |
844 | ret = nvlist_add_uint16_array(payload, name, | |
845 | va_arg(ap, uint16_t *), nelem); | |
846 | break; | |
847 | case DATA_TYPE_INT32: | |
848 | ret = nvlist_add_int32(payload, name, | |
849 | va_arg(ap, int32_t)); | |
850 | break; | |
851 | case DATA_TYPE_INT32_ARRAY: | |
852 | nelem = va_arg(ap, int); | |
853 | ret = nvlist_add_int32_array(payload, name, | |
854 | va_arg(ap, int32_t *), nelem); | |
855 | break; | |
856 | case DATA_TYPE_UINT32: | |
857 | ret = nvlist_add_uint32(payload, name, | |
858 | va_arg(ap, uint32_t)); | |
859 | break; | |
860 | case DATA_TYPE_UINT32_ARRAY: | |
861 | nelem = va_arg(ap, int); | |
862 | ret = nvlist_add_uint32_array(payload, name, | |
863 | va_arg(ap, uint32_t *), nelem); | |
864 | break; | |
865 | case DATA_TYPE_INT64: | |
866 | ret = nvlist_add_int64(payload, name, | |
867 | va_arg(ap, int64_t)); | |
868 | break; | |
869 | case DATA_TYPE_INT64_ARRAY: | |
870 | nelem = va_arg(ap, int); | |
871 | ret = nvlist_add_int64_array(payload, name, | |
872 | va_arg(ap, int64_t *), nelem); | |
873 | break; | |
874 | case DATA_TYPE_UINT64: | |
875 | ret = nvlist_add_uint64(payload, name, | |
876 | va_arg(ap, uint64_t)); | |
877 | break; | |
878 | case DATA_TYPE_UINT64_ARRAY: | |
879 | nelem = va_arg(ap, int); | |
880 | ret = nvlist_add_uint64_array(payload, name, | |
881 | va_arg(ap, uint64_t *), nelem); | |
882 | break; | |
883 | case DATA_TYPE_STRING: | |
884 | ret = nvlist_add_string(payload, name, | |
885 | va_arg(ap, char *)); | |
886 | break; | |
887 | case DATA_TYPE_STRING_ARRAY: | |
888 | nelem = va_arg(ap, int); | |
889 | ret = nvlist_add_string_array(payload, name, | |
890 | va_arg(ap, char **), nelem); | |
891 | break; | |
892 | case DATA_TYPE_NVLIST: | |
893 | ret = nvlist_add_nvlist(payload, name, | |
894 | va_arg(ap, nvlist_t *)); | |
895 | break; | |
896 | case DATA_TYPE_NVLIST_ARRAY: | |
897 | nelem = va_arg(ap, int); | |
898 | ret = nvlist_add_nvlist_array(payload, name, | |
899 | va_arg(ap, nvlist_t **), nelem); | |
900 | break; | |
901 | default: | |
902 | ret = EINVAL; | |
903 | } | |
904 | ||
905 | name = va_arg(ap, char *); | |
906 | } | |
907 | return (ret); | |
908 | } | |
909 | ||
910 | void | |
911 | fm_payload_set(nvlist_t *payload, ...) | |
912 | { | |
913 | int ret; | |
914 | const char *name; | |
915 | va_list ap; | |
916 | ||
917 | va_start(ap, payload); | |
918 | name = va_arg(ap, char *); | |
919 | ret = i_fm_payload_set(payload, name, ap); | |
920 | va_end(ap); | |
921 | ||
922 | if (ret) | |
923 | atomic_add_64( | |
924 | &erpt_kstat_data.payload_set_failed.value.ui64, 1); | |
925 | } | |
926 | ||
927 | /* | |
928 | * Set-up and validate the members of an ereport event according to: | |
929 | * | |
930 | * Member name Type Value | |
931 | * ==================================================== | |
932 | * class string ereport | |
933 | * version uint8_t 0 | |
934 | * ena uint64_t <ena> | |
935 | * detector nvlist_t <detector> | |
936 | * ereport-payload nvlist_t <var args> | |
937 | * | |
428870ff BB |
938 | * We don't actually add a 'version' member to the payload. Really, |
939 | * the version quoted to us by our caller is that of the category 1 | |
940 | * "ereport" event class (and we require FM_EREPORT_VERS0) but | |
941 | * the payload version of the actual leaf class event under construction | |
942 | * may be something else. Callers should supply a version in the varargs, | |
943 | * or (better) we could take two version arguments - one for the | |
944 | * ereport category 1 classification (expect FM_EREPORT_VERS0) and one | |
945 | * for the leaf class. | |
fa42225a BB |
946 | */ |
947 | void | |
948 | fm_ereport_set(nvlist_t *ereport, int version, const char *erpt_class, | |
949 | uint64_t ena, const nvlist_t *detector, ...) | |
950 | { | |
951 | char ereport_class[FM_MAX_CLASS]; | |
952 | const char *name; | |
953 | va_list ap; | |
954 | int ret; | |
955 | ||
956 | if (version != FM_EREPORT_VERS0) { | |
957 | atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1); | |
958 | return; | |
959 | } | |
960 | ||
961 | (void) snprintf(ereport_class, FM_MAX_CLASS, "%s.%s", | |
962 | FM_EREPORT_CLASS, erpt_class); | |
963 | if (nvlist_add_string(ereport, FM_CLASS, ereport_class) != 0) { | |
964 | atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1); | |
965 | return; | |
966 | } | |
967 | ||
968 | if (nvlist_add_uint64(ereport, FM_EREPORT_ENA, ena)) { | |
969 | atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1); | |
970 | } | |
971 | ||
972 | if (nvlist_add_nvlist(ereport, FM_EREPORT_DETECTOR, | |
973 | (nvlist_t *)detector) != 0) { | |
974 | atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1); | |
975 | } | |
976 | ||
977 | va_start(ap, detector); | |
978 | name = va_arg(ap, const char *); | |
979 | ret = i_fm_payload_set(ereport, name, ap); | |
980 | va_end(ap); | |
981 | ||
982 | if (ret) | |
983 | atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1); | |
984 | } | |
985 | ||
986 | /* | |
987 | * Set-up and validate the members of an hc fmri according to; | |
988 | * | |
989 | * Member name Type Value | |
990 | * =================================================== | |
991 | * version uint8_t 0 | |
992 | * auth nvlist_t <auth> | |
993 | * hc-name string <name> | |
994 | * hc-id string <id> | |
995 | * | |
996 | * Note that auth and hc-id are optional members. | |
997 | */ | |
998 | ||
999 | #define HC_MAXPAIRS 20 | |
1000 | #define HC_MAXNAMELEN 50 | |
1001 | ||
1002 | static int | |
1003 | fm_fmri_hc_set_common(nvlist_t *fmri, int version, const nvlist_t *auth) | |
1004 | { | |
1005 | if (version != FM_HC_SCHEME_VERSION) { | |
1006 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1007 | return (0); | |
1008 | } | |
1009 | ||
1010 | if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0 || | |
1011 | nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_HC) != 0) { | |
1012 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1013 | return (0); | |
1014 | } | |
1015 | ||
1016 | if (auth != NULL && nvlist_add_nvlist(fmri, FM_FMRI_AUTHORITY, | |
1017 | (nvlist_t *)auth) != 0) { | |
1018 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1019 | return (0); | |
1020 | } | |
1021 | ||
1022 | return (1); | |
1023 | } | |
1024 | ||
1025 | void | |
1026 | fm_fmri_hc_set(nvlist_t *fmri, int version, const nvlist_t *auth, | |
1027 | nvlist_t *snvl, int npairs, ...) | |
1028 | { | |
1029 | nv_alloc_t *nva = nvlist_lookup_nv_alloc(fmri); | |
1030 | nvlist_t *pairs[HC_MAXPAIRS]; | |
1031 | va_list ap; | |
1032 | int i; | |
1033 | ||
1034 | if (!fm_fmri_hc_set_common(fmri, version, auth)) | |
1035 | return; | |
1036 | ||
1037 | npairs = MIN(npairs, HC_MAXPAIRS); | |
1038 | ||
1039 | va_start(ap, npairs); | |
1040 | for (i = 0; i < npairs; i++) { | |
1041 | const char *name = va_arg(ap, const char *); | |
1042 | uint32_t id = va_arg(ap, uint32_t); | |
1043 | char idstr[11]; | |
1044 | ||
1045 | (void) snprintf(idstr, sizeof (idstr), "%u", id); | |
1046 | ||
1047 | pairs[i] = fm_nvlist_create(nva); | |
1048 | if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, name) != 0 || | |
1049 | nvlist_add_string(pairs[i], FM_FMRI_HC_ID, idstr) != 0) { | |
1050 | atomic_add_64( | |
1051 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1052 | } | |
1053 | } | |
1054 | va_end(ap); | |
1055 | ||
1056 | if (nvlist_add_nvlist_array(fmri, FM_FMRI_HC_LIST, pairs, npairs) != 0) | |
1057 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1058 | ||
1059 | for (i = 0; i < npairs; i++) | |
1060 | fm_nvlist_destroy(pairs[i], FM_NVA_RETAIN); | |
1061 | ||
1062 | if (snvl != NULL) { | |
1063 | if (nvlist_add_nvlist(fmri, FM_FMRI_HC_SPECIFIC, snvl) != 0) { | |
1064 | atomic_add_64( | |
1065 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1066 | } | |
1067 | } | |
1068 | } | |
1069 | ||
26685276 BB |
1070 | void |
1071 | fm_fmri_hc_create(nvlist_t *fmri, int version, const nvlist_t *auth, | |
1072 | nvlist_t *snvl, nvlist_t *bboard, int npairs, ...) | |
1073 | { | |
1074 | nv_alloc_t *nva = nvlist_lookup_nv_alloc(fmri); | |
1075 | nvlist_t *pairs[HC_MAXPAIRS]; | |
1076 | nvlist_t **hcl; | |
1077 | uint_t n; | |
1078 | int i, j; | |
1079 | va_list ap; | |
1080 | char *hcname, *hcid; | |
1081 | ||
1082 | if (!fm_fmri_hc_set_common(fmri, version, auth)) | |
1083 | return; | |
1084 | ||
1085 | /* | |
1086 | * copy the bboard nvpairs to the pairs array | |
1087 | */ | |
1088 | if (nvlist_lookup_nvlist_array(bboard, FM_FMRI_HC_LIST, &hcl, &n) | |
1089 | != 0) { | |
1090 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1091 | return; | |
1092 | } | |
1093 | ||
1094 | for (i = 0; i < n; i++) { | |
1095 | if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_NAME, | |
1096 | &hcname) != 0) { | |
1097 | atomic_add_64( | |
1098 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1099 | return; | |
1100 | } | |
1101 | if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_ID, &hcid) != 0) { | |
1102 | atomic_add_64( | |
1103 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1104 | return; | |
1105 | } | |
1106 | ||
1107 | pairs[i] = fm_nvlist_create(nva); | |
1108 | if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, hcname) != 0 || | |
1109 | nvlist_add_string(pairs[i], FM_FMRI_HC_ID, hcid) != 0) { | |
1110 | for (j = 0; j <= i; j++) { | |
1111 | if (pairs[j] != NULL) | |
1112 | fm_nvlist_destroy(pairs[j], | |
1113 | FM_NVA_RETAIN); | |
1114 | } | |
1115 | atomic_add_64( | |
1116 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1117 | return; | |
1118 | } | |
1119 | } | |
1120 | ||
1121 | /* | |
1122 | * create the pairs from passed in pairs | |
1123 | */ | |
1124 | npairs = MIN(npairs, HC_MAXPAIRS); | |
1125 | ||
1126 | va_start(ap, npairs); | |
1127 | for (i = n; i < npairs + n; i++) { | |
1128 | const char *name = va_arg(ap, const char *); | |
1129 | uint32_t id = va_arg(ap, uint32_t); | |
1130 | char idstr[11]; | |
1131 | (void) snprintf(idstr, sizeof (idstr), "%u", id); | |
1132 | pairs[i] = fm_nvlist_create(nva); | |
1133 | if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, name) != 0 || | |
1134 | nvlist_add_string(pairs[i], FM_FMRI_HC_ID, idstr) != 0) { | |
1135 | for (j = 0; j <= i; j++) { | |
1136 | if (pairs[j] != NULL) | |
1137 | fm_nvlist_destroy(pairs[j], | |
1138 | FM_NVA_RETAIN); | |
1139 | } | |
1140 | atomic_add_64( | |
1141 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1142 | return; | |
1143 | } | |
1144 | } | |
1145 | va_end(ap); | |
1146 | ||
1147 | /* | |
1148 | * Create the fmri hc list | |
1149 | */ | |
1150 | if (nvlist_add_nvlist_array(fmri, FM_FMRI_HC_LIST, pairs, | |
1151 | npairs + n) != 0) { | |
1152 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1153 | return; | |
1154 | } | |
1155 | ||
1156 | for (i = 0; i < npairs + n; i++) { | |
1157 | fm_nvlist_destroy(pairs[i], FM_NVA_RETAIN); | |
1158 | } | |
1159 | ||
1160 | if (snvl != NULL) { | |
1161 | if (nvlist_add_nvlist(fmri, FM_FMRI_HC_SPECIFIC, snvl) != 0) { | |
1162 | atomic_add_64( | |
1163 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1164 | return; | |
1165 | } | |
1166 | } | |
1167 | } | |
1168 | ||
fa42225a BB |
1169 | /* |
1170 | * Set-up and validate the members of an dev fmri according to: | |
1171 | * | |
1172 | * Member name Type Value | |
1173 | * ==================================================== | |
1174 | * version uint8_t 0 | |
1175 | * auth nvlist_t <auth> | |
1176 | * devpath string <devpath> | |
428870ff BB |
1177 | * [devid] string <devid> |
1178 | * [target-port-l0id] string <target-port-lun0-id> | |
fa42225a BB |
1179 | * |
1180 | * Note that auth and devid are optional members. | |
1181 | */ | |
1182 | void | |
1183 | fm_fmri_dev_set(nvlist_t *fmri_dev, int version, const nvlist_t *auth, | |
428870ff | 1184 | const char *devpath, const char *devid, const char *tpl0) |
fa42225a | 1185 | { |
428870ff BB |
1186 | int err = 0; |
1187 | ||
fa42225a BB |
1188 | if (version != DEV_SCHEME_VERSION0) { |
1189 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1190 | return; | |
1191 | } | |
1192 | ||
428870ff BB |
1193 | err |= nvlist_add_uint8(fmri_dev, FM_VERSION, version); |
1194 | err |= nvlist_add_string(fmri_dev, FM_FMRI_SCHEME, FM_FMRI_SCHEME_DEV); | |
fa42225a BB |
1195 | |
1196 | if (auth != NULL) { | |
428870ff BB |
1197 | err |= nvlist_add_nvlist(fmri_dev, FM_FMRI_AUTHORITY, |
1198 | (nvlist_t *)auth); | |
fa42225a BB |
1199 | } |
1200 | ||
428870ff | 1201 | err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_PATH, devpath); |
fa42225a BB |
1202 | |
1203 | if (devid != NULL) | |
428870ff BB |
1204 | err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_ID, devid); |
1205 | ||
1206 | if (tpl0 != NULL) | |
1207 | err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_TGTPTLUN0, tpl0); | |
1208 | ||
1209 | if (err) | |
1210 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1211 | ||
fa42225a BB |
1212 | } |
1213 | ||
1214 | /* | |
1215 | * Set-up and validate the members of an cpu fmri according to: | |
1216 | * | |
1217 | * Member name Type Value | |
1218 | * ==================================================== | |
1219 | * version uint8_t 0 | |
1220 | * auth nvlist_t <auth> | |
1221 | * cpuid uint32_t <cpu_id> | |
1222 | * cpumask uint8_t <cpu_mask> | |
1223 | * serial uint64_t <serial_id> | |
1224 | * | |
1225 | * Note that auth, cpumask, serial are optional members. | |
1226 | * | |
1227 | */ | |
1228 | void | |
1229 | fm_fmri_cpu_set(nvlist_t *fmri_cpu, int version, const nvlist_t *auth, | |
1230 | uint32_t cpu_id, uint8_t *cpu_maskp, const char *serial_idp) | |
1231 | { | |
1232 | uint64_t *failedp = &erpt_kstat_data.fmri_set_failed.value.ui64; | |
1233 | ||
1234 | if (version < CPU_SCHEME_VERSION1) { | |
1235 | atomic_add_64(failedp, 1); | |
1236 | return; | |
1237 | } | |
1238 | ||
1239 | if (nvlist_add_uint8(fmri_cpu, FM_VERSION, version) != 0) { | |
1240 | atomic_add_64(failedp, 1); | |
1241 | return; | |
1242 | } | |
1243 | ||
1244 | if (nvlist_add_string(fmri_cpu, FM_FMRI_SCHEME, | |
1245 | FM_FMRI_SCHEME_CPU) != 0) { | |
1246 | atomic_add_64(failedp, 1); | |
1247 | return; | |
1248 | } | |
1249 | ||
1250 | if (auth != NULL && nvlist_add_nvlist(fmri_cpu, FM_FMRI_AUTHORITY, | |
1251 | (nvlist_t *)auth) != 0) | |
1252 | atomic_add_64(failedp, 1); | |
1253 | ||
1254 | if (nvlist_add_uint32(fmri_cpu, FM_FMRI_CPU_ID, cpu_id) != 0) | |
1255 | atomic_add_64(failedp, 1); | |
1256 | ||
1257 | if (cpu_maskp != NULL && nvlist_add_uint8(fmri_cpu, FM_FMRI_CPU_MASK, | |
1258 | *cpu_maskp) != 0) | |
1259 | atomic_add_64(failedp, 1); | |
1260 | ||
1261 | if (serial_idp == NULL || nvlist_add_string(fmri_cpu, | |
1262 | FM_FMRI_CPU_SERIAL_ID, (char *)serial_idp) != 0) | |
1263 | atomic_add_64(failedp, 1); | |
1264 | } | |
1265 | ||
1266 | /* | |
1267 | * Set-up and validate the members of a mem according to: | |
1268 | * | |
1269 | * Member name Type Value | |
1270 | * ==================================================== | |
1271 | * version uint8_t 0 | |
1272 | * auth nvlist_t <auth> [optional] | |
1273 | * unum string <unum> | |
1274 | * serial string <serial> [optional*] | |
1275 | * offset uint64_t <offset> [optional] | |
1276 | * | |
1277 | * * serial is required if offset is present | |
1278 | */ | |
1279 | void | |
1280 | fm_fmri_mem_set(nvlist_t *fmri, int version, const nvlist_t *auth, | |
1281 | const char *unum, const char *serial, uint64_t offset) | |
1282 | { | |
1283 | if (version != MEM_SCHEME_VERSION0) { | |
1284 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1285 | return; | |
1286 | } | |
1287 | ||
1288 | if (!serial && (offset != (uint64_t)-1)) { | |
1289 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1290 | return; | |
1291 | } | |
1292 | ||
1293 | if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0) { | |
1294 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1295 | return; | |
1296 | } | |
1297 | ||
1298 | if (nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_MEM) != 0) { | |
1299 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1300 | return; | |
1301 | } | |
1302 | ||
1303 | if (auth != NULL) { | |
1304 | if (nvlist_add_nvlist(fmri, FM_FMRI_AUTHORITY, | |
1305 | (nvlist_t *)auth) != 0) { | |
1306 | atomic_add_64( | |
1307 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1308 | } | |
1309 | } | |
1310 | ||
1311 | if (nvlist_add_string(fmri, FM_FMRI_MEM_UNUM, unum) != 0) { | |
1312 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1313 | } | |
1314 | ||
1315 | if (serial != NULL) { | |
1316 | if (nvlist_add_string_array(fmri, FM_FMRI_MEM_SERIAL_ID, | |
1317 | (char **)&serial, 1) != 0) { | |
1318 | atomic_add_64( | |
1319 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1320 | } | |
1321 | if (offset != (uint64_t)-1) { | |
1322 | if (nvlist_add_uint64(fmri, FM_FMRI_MEM_OFFSET, | |
1323 | offset) != 0) { | |
1324 | atomic_add_64(&erpt_kstat_data. | |
1325 | fmri_set_failed.value.ui64, 1); | |
1326 | } | |
1327 | } | |
1328 | } | |
1329 | } | |
1330 | ||
1331 | void | |
1332 | fm_fmri_zfs_set(nvlist_t *fmri, int version, uint64_t pool_guid, | |
1333 | uint64_t vdev_guid) | |
1334 | { | |
1335 | if (version != ZFS_SCHEME_VERSION0) { | |
1336 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1337 | return; | |
1338 | } | |
1339 | ||
1340 | if (nvlist_add_uint8(fmri, FM_VERSION, version) != 0) { | |
1341 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1342 | return; | |
1343 | } | |
1344 | ||
1345 | if (nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_ZFS) != 0) { | |
1346 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1347 | return; | |
1348 | } | |
1349 | ||
1350 | if (nvlist_add_uint64(fmri, FM_FMRI_ZFS_POOL, pool_guid) != 0) { | |
1351 | atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1352 | } | |
1353 | ||
1354 | if (vdev_guid != 0) { | |
1355 | if (nvlist_add_uint64(fmri, FM_FMRI_ZFS_VDEV, vdev_guid) != 0) { | |
1356 | atomic_add_64( | |
1357 | &erpt_kstat_data.fmri_set_failed.value.ui64, 1); | |
1358 | } | |
1359 | } | |
1360 | } | |
1361 | ||
1362 | uint64_t | |
1363 | fm_ena_increment(uint64_t ena) | |
1364 | { | |
1365 | uint64_t new_ena; | |
1366 | ||
1367 | switch (ENA_FORMAT(ena)) { | |
1368 | case FM_ENA_FMT1: | |
1369 | new_ena = ena + (1 << ENA_FMT1_GEN_SHFT); | |
1370 | break; | |
1371 | case FM_ENA_FMT2: | |
1372 | new_ena = ena + (1 << ENA_FMT2_GEN_SHFT); | |
1373 | break; | |
1374 | default: | |
1375 | new_ena = 0; | |
1376 | } | |
1377 | ||
1378 | return (new_ena); | |
1379 | } | |
1380 | ||
1381 | uint64_t | |
1382 | fm_ena_generate_cpu(uint64_t timestamp, processorid_t cpuid, uchar_t format) | |
1383 | { | |
1384 | uint64_t ena = 0; | |
1385 | ||
1386 | switch (format) { | |
1387 | case FM_ENA_FMT1: | |
1388 | if (timestamp) { | |
1389 | ena = (uint64_t)((format & ENA_FORMAT_MASK) | | |
1390 | ((cpuid << ENA_FMT1_CPUID_SHFT) & | |
1391 | ENA_FMT1_CPUID_MASK) | | |
1392 | ((timestamp << ENA_FMT1_TIME_SHFT) & | |
1393 | ENA_FMT1_TIME_MASK)); | |
1394 | } else { | |
1395 | ena = (uint64_t)((format & ENA_FORMAT_MASK) | | |
1396 | ((cpuid << ENA_FMT1_CPUID_SHFT) & | |
1397 | ENA_FMT1_CPUID_MASK) | | |
26685276 | 1398 | ((gethrtime() << ENA_FMT1_TIME_SHFT) & |
fa42225a BB |
1399 | ENA_FMT1_TIME_MASK)); |
1400 | } | |
1401 | break; | |
1402 | case FM_ENA_FMT2: | |
1403 | ena = (uint64_t)((format & ENA_FORMAT_MASK) | | |
1404 | ((timestamp << ENA_FMT2_TIME_SHFT) & ENA_FMT2_TIME_MASK)); | |
1405 | break; | |
1406 | default: | |
1407 | break; | |
1408 | } | |
1409 | ||
1410 | return (ena); | |
1411 | } | |
1412 | ||
1413 | uint64_t | |
1414 | fm_ena_generate(uint64_t timestamp, uchar_t format) | |
1415 | { | |
26685276 | 1416 | return (fm_ena_generate_cpu(timestamp, getcpuid(), format)); |
fa42225a BB |
1417 | } |
1418 | ||
1419 | uint64_t | |
1420 | fm_ena_generation_get(uint64_t ena) | |
1421 | { | |
1422 | uint64_t gen; | |
1423 | ||
1424 | switch (ENA_FORMAT(ena)) { | |
1425 | case FM_ENA_FMT1: | |
1426 | gen = (ena & ENA_FMT1_GEN_MASK) >> ENA_FMT1_GEN_SHFT; | |
1427 | break; | |
1428 | case FM_ENA_FMT2: | |
1429 | gen = (ena & ENA_FMT2_GEN_MASK) >> ENA_FMT2_GEN_SHFT; | |
1430 | break; | |
1431 | default: | |
1432 | gen = 0; | |
1433 | break; | |
1434 | } | |
1435 | ||
1436 | return (gen); | |
1437 | } | |
1438 | ||
1439 | uchar_t | |
1440 | fm_ena_format_get(uint64_t ena) | |
1441 | { | |
1442 | ||
1443 | return (ENA_FORMAT(ena)); | |
1444 | } | |
1445 | ||
1446 | uint64_t | |
1447 | fm_ena_id_get(uint64_t ena) | |
1448 | { | |
1449 | uint64_t id; | |
1450 | ||
1451 | switch (ENA_FORMAT(ena)) { | |
1452 | case FM_ENA_FMT1: | |
1453 | id = (ena & ENA_FMT1_ID_MASK) >> ENA_FMT1_ID_SHFT; | |
1454 | break; | |
1455 | case FM_ENA_FMT2: | |
1456 | id = (ena & ENA_FMT2_ID_MASK) >> ENA_FMT2_ID_SHFT; | |
1457 | break; | |
1458 | default: | |
1459 | id = 0; | |
1460 | } | |
1461 | ||
1462 | return (id); | |
1463 | } | |
1464 | ||
1465 | uint64_t | |
1466 | fm_ena_time_get(uint64_t ena) | |
1467 | { | |
1468 | uint64_t time; | |
1469 | ||
1470 | switch (ENA_FORMAT(ena)) { | |
1471 | case FM_ENA_FMT1: | |
1472 | time = (ena & ENA_FMT1_TIME_MASK) >> ENA_FMT1_TIME_SHFT; | |
1473 | break; | |
1474 | case FM_ENA_FMT2: | |
1475 | time = (ena & ENA_FMT2_TIME_MASK) >> ENA_FMT2_TIME_SHFT; | |
1476 | break; | |
1477 | default: | |
1478 | time = 0; | |
1479 | } | |
1480 | ||
1481 | return (time); | |
1482 | } | |
1483 | ||
26685276 | 1484 | #ifdef _KERNEL |
fa42225a | 1485 | void |
26685276 | 1486 | fm_init(void) |
fa42225a | 1487 | { |
26685276 BB |
1488 | zevent_len_cur = 0; |
1489 | zevent_flags = 0; | |
fa42225a | 1490 | |
c409e464 BB |
1491 | if (zfs_zevent_len_max == 0) |
1492 | zfs_zevent_len_max = ERPT_MAX_ERRS * MAX(max_ncpus, 4); | |
fa42225a | 1493 | |
26685276 BB |
1494 | /* Initialize zevent allocation and generation kstats */ |
1495 | fm_ksp = kstat_create("zfs", 0, "fm", "misc", KSTAT_TYPE_NAMED, | |
1496 | sizeof (struct erpt_kstat) / sizeof (kstat_named_t), | |
1497 | KSTAT_FLAG_VIRTUAL); | |
1498 | ||
1499 | if (fm_ksp != NULL) { | |
1500 | fm_ksp->ks_data = &erpt_kstat_data; | |
1501 | kstat_install(fm_ksp); | |
1502 | } else { | |
1503 | cmn_err(CE_NOTE, "failed to create fm/misc kstat\n"); | |
1504 | } | |
1505 | ||
1506 | mutex_init(&zevent_lock, NULL, MUTEX_DEFAULT, NULL); | |
1507 | list_create(&zevent_list, sizeof(zevent_t), offsetof(zevent_t, ev_node)); | |
1508 | cv_init(&zevent_cv, NULL, CV_DEFAULT, NULL); | |
fa42225a | 1509 | } |
428870ff BB |
1510 | |
1511 | void | |
26685276 | 1512 | fm_fini(void) |
428870ff | 1513 | { |
26685276 | 1514 | int count; |
428870ff | 1515 | |
26685276 BB |
1516 | zfs_zevent_drain_all(&count); |
1517 | cv_broadcast(&zevent_cv); | |
428870ff | 1518 | |
26685276 BB |
1519 | mutex_enter(&zevent_lock); |
1520 | zevent_flags |= ZEVENT_SHUTDOWN; | |
1521 | while (zevent_waiters > 0) { | |
1522 | mutex_exit(&zevent_lock); | |
1523 | schedule(); | |
1524 | mutex_enter(&zevent_lock); | |
428870ff | 1525 | } |
26685276 | 1526 | mutex_exit(&zevent_lock); |
428870ff | 1527 | |
26685276 BB |
1528 | cv_destroy(&zevent_cv); |
1529 | list_destroy(&zevent_list); | |
1530 | mutex_destroy(&zevent_lock); | |
428870ff | 1531 | |
26685276 BB |
1532 | if (fm_ksp != NULL) { |
1533 | kstat_delete(fm_ksp); | |
1534 | fm_ksp = NULL; | |
428870ff | 1535 | } |
26685276 | 1536 | } |
428870ff | 1537 | |
c409e464 BB |
1538 | module_param(zfs_zevent_len_max, int, 0644); |
1539 | MODULE_PARM_DESC(zfs_zevent_len_max, "Max event queue length"); | |
428870ff | 1540 | |
c409e464 BB |
1541 | module_param(zfs_zevent_cols, int, 0644); |
1542 | MODULE_PARM_DESC(zfs_zevent_cols, "Max event column width"); | |
428870ff | 1543 | |
c409e464 BB |
1544 | module_param(zfs_zevent_console, int, 0644); |
1545 | MODULE_PARM_DESC(zfs_zevent_console, "Log events to the console"); | |
428870ff | 1546 | |
26685276 | 1547 | #endif /* _KERNEL */ |