1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
16 #include <rte_per_lcore.h>
20 struct rte_log_dynamic_type {
25 /** The rte_log structure. */
26 static struct rte_logs {
27 uint32_t type; /**< Bitfield with enabled logs. */
28 uint32_t level; /**< Log level. */
29 FILE *file; /**< Output file set by rte_openlog_stream, or NULL. */
30 size_t dynamic_types_len;
31 struct rte_log_dynamic_type *dynamic_types;
34 .level = RTE_LOG_DEBUG,
37 struct rte_eal_opt_loglevel {
38 /** Next list entry */
39 TAILQ_ENTRY(rte_eal_opt_loglevel) next;
40 /** Compiled regular expression obtained from the option */
42 /** Globbing pattern option */
44 /** Log level value obtained from the option */
48 TAILQ_HEAD(rte_eal_opt_loglevel_list, rte_eal_opt_loglevel);
50 /** List of valid EAL log level options */
51 static struct rte_eal_opt_loglevel_list opt_loglevel_list =
52 TAILQ_HEAD_INITIALIZER(opt_loglevel_list);
54 /* Stream to use for logging if rte_logs.file is NULL */
55 static FILE *default_log_stream;
58 * This global structure stores some information about the message
59 * that is currently being processed by one lcore
62 uint32_t loglevel; /**< log level - see rte_log.h */
63 uint32_t logtype; /**< log type - see rte_log.h */
67 static RTE_DEFINE_PER_LCORE(struct log_cur_msg, log_cur_msg);
71 /* Change the stream that will be used by logging system */
73 rte_openlog_stream(FILE *f)
80 rte_log_get_stream(void)
82 FILE *f = rte_logs.file;
86 * Grab the current value of stderr here, rather than
87 * just initializing default_log_stream to stderr. This
88 * ensures that we will always use the current value
89 * of stderr, even if the application closes and
92 return default_log_stream ? : stderr;
97 /* Set global log level */
99 rte_log_set_global_level(uint32_t level)
101 rte_logs.level = (uint32_t)level;
104 /* Get global log level */
106 rte_log_get_global_level(void)
108 return rte_logs.level;
112 rte_log_get_level(uint32_t type)
114 if (type >= rte_logs.dynamic_types_len)
117 return rte_logs.dynamic_types[type].loglevel;
121 rte_log_can_log(uint32_t logtype, uint32_t level)
125 if (level > rte_log_get_global_level())
128 log_level = rte_log_get_level(logtype);
132 if (level > (uint32_t)log_level)
139 logtype_set_level(uint32_t type, uint32_t level)
141 uint32_t current = rte_logs.dynamic_types[type].loglevel;
143 if (current != level) {
144 rte_logs.dynamic_types[type].loglevel = level;
145 RTE_LOG(DEBUG, EAL, "%s log level changed from %s to %s\n",
146 rte_logs.dynamic_types[type].name == NULL ?
147 "" : rte_logs.dynamic_types[type].name,
148 eal_log_level2str(current),
149 eal_log_level2str(level));
154 rte_log_set_level(uint32_t type, uint32_t level)
156 if (type >= rte_logs.dynamic_types_len)
158 if (level > RTE_LOG_MAX)
161 logtype_set_level(type, level);
166 /* set log level by regular expression */
168 rte_log_set_level_regexp(const char *regex, uint32_t level)
173 if (level > RTE_LOG_MAX)
176 if (regcomp(&r, regex, 0) != 0)
179 for (i = 0; i < rte_logs.dynamic_types_len; i++) {
180 if (rte_logs.dynamic_types[i].name == NULL)
182 if (regexec(&r, rte_logs.dynamic_types[i].name, 0,
184 logtype_set_level(i, level);
193 * Save the type string and the loglevel for later dynamic
194 * logtypes which may register later.
197 log_save_level(uint32_t priority, const char *regex, const char *pattern)
199 struct rte_eal_opt_loglevel *opt_ll = NULL;
201 opt_ll = malloc(sizeof(*opt_ll));
205 opt_ll->level = priority;
208 opt_ll->pattern = NULL;
209 if (regcomp(&opt_ll->re_match, regex, 0) != 0)
211 } else if (pattern) {
212 opt_ll->pattern = strdup(pattern);
213 if (opt_ll->pattern == NULL)
218 TAILQ_INSERT_HEAD(&opt_loglevel_list, opt_ll, next);
226 eal_log_save_regexp(const char *regex, uint32_t level)
228 return log_save_level(level, regex, NULL);
231 /* set log level based on globbing pattern */
233 rte_log_set_level_pattern(const char *pattern, uint32_t level)
237 if (level > RTE_LOG_MAX)
240 for (i = 0; i < rte_logs.dynamic_types_len; i++) {
241 if (rte_logs.dynamic_types[i].name == NULL)
244 if (fnmatch(pattern, rte_logs.dynamic_types[i].name, 0) == 0)
245 logtype_set_level(i, level);
252 eal_log_save_pattern(const char *pattern, uint32_t level)
254 return log_save_level(level, NULL, pattern);
257 /* get the current loglevel for the message being processed */
258 int rte_log_cur_msg_loglevel(void)
260 return RTE_PER_LCORE(log_cur_msg).loglevel;
263 /* get the current logtype for the message being processed */
264 int rte_log_cur_msg_logtype(void)
266 return RTE_PER_LCORE(log_cur_msg).logtype;
270 log_lookup(const char *name)
274 for (i = 0; i < rte_logs.dynamic_types_len; i++) {
275 if (rte_logs.dynamic_types[i].name == NULL)
277 if (strcmp(name, rte_logs.dynamic_types[i].name) == 0)
285 log_register(const char *name, uint32_t level)
287 struct rte_log_dynamic_type *new_dynamic_types;
290 id = log_lookup(name);
294 new_dynamic_types = realloc(rte_logs.dynamic_types,
295 sizeof(struct rte_log_dynamic_type) *
296 (rte_logs.dynamic_types_len + 1));
297 if (new_dynamic_types == NULL)
299 rte_logs.dynamic_types = new_dynamic_types;
301 id = rte_logs.dynamic_types_len;
302 memset(&rte_logs.dynamic_types[id], 0,
303 sizeof(rte_logs.dynamic_types[id]));
304 rte_logs.dynamic_types[id].name = strdup(name);
305 if (rte_logs.dynamic_types[id].name == NULL)
307 logtype_set_level(id, level);
309 rte_logs.dynamic_types_len++;
314 /* register an extended log type */
316 rte_log_register(const char *name)
318 return log_register(name, RTE_LOG_INFO);
321 /* Register an extended log type and try to pick its level from EAL options */
323 rte_log_register_type_and_pick_level(const char *name, uint32_t level_def)
325 struct rte_eal_opt_loglevel *opt_ll;
326 uint32_t level = level_def;
328 TAILQ_FOREACH(opt_ll, &opt_loglevel_list, next) {
329 if (opt_ll->level > RTE_LOG_MAX)
332 if (opt_ll->pattern) {
333 if (fnmatch(opt_ll->pattern, name, 0) == 0)
334 level = opt_ll->level;
336 if (regexec(&opt_ll->re_match, name, 0, NULL, 0) == 0)
337 level = opt_ll->level;
341 return log_register(name, level);
349 static const struct logtype logtype_strings[] = {
350 {RTE_LOGTYPE_EAL, "lib.eal"},
351 {RTE_LOGTYPE_MALLOC, "lib.malloc"},
352 {RTE_LOGTYPE_RING, "lib.ring"},
353 {RTE_LOGTYPE_MEMPOOL, "lib.mempool"},
354 {RTE_LOGTYPE_TIMER, "lib.timer"},
355 {RTE_LOGTYPE_PMD, "pmd"},
356 {RTE_LOGTYPE_HASH, "lib.hash"},
357 {RTE_LOGTYPE_LPM, "lib.lpm"},
358 {RTE_LOGTYPE_KNI, "lib.kni"},
359 {RTE_LOGTYPE_ACL, "lib.acl"},
360 {RTE_LOGTYPE_POWER, "lib.power"},
361 {RTE_LOGTYPE_METER, "lib.meter"},
362 {RTE_LOGTYPE_SCHED, "lib.sched"},
363 {RTE_LOGTYPE_PORT, "lib.port"},
364 {RTE_LOGTYPE_TABLE, "lib.table"},
365 {RTE_LOGTYPE_PIPELINE, "lib.pipeline"},
366 {RTE_LOGTYPE_MBUF, "lib.mbuf"},
367 {RTE_LOGTYPE_CRYPTODEV, "lib.cryptodev"},
368 {RTE_LOGTYPE_EFD, "lib.efd"},
369 {RTE_LOGTYPE_EVENTDEV, "lib.eventdev"},
370 {RTE_LOGTYPE_GSO, "lib.gso"},
371 {RTE_LOGTYPE_USER1, "user1"},
372 {RTE_LOGTYPE_USER2, "user2"},
373 {RTE_LOGTYPE_USER3, "user3"},
374 {RTE_LOGTYPE_USER4, "user4"},
375 {RTE_LOGTYPE_USER5, "user5"},
376 {RTE_LOGTYPE_USER6, "user6"},
377 {RTE_LOGTYPE_USER7, "user7"},
378 {RTE_LOGTYPE_USER8, "user8"}
381 /* Logging should be first initializer (before drivers and bus) */
382 RTE_INIT_PRIO(log_init, LOG)
386 rte_log_set_global_level(RTE_LOG_DEBUG);
388 rte_logs.dynamic_types = calloc(RTE_LOGTYPE_FIRST_EXT_ID,
389 sizeof(struct rte_log_dynamic_type));
390 if (rte_logs.dynamic_types == NULL)
393 /* register legacy log types */
394 for (i = 0; i < RTE_DIM(logtype_strings); i++) {
395 rte_logs.dynamic_types[logtype_strings[i].log_id].name =
396 strdup(logtype_strings[i].logtype);
397 logtype_set_level(logtype_strings[i].log_id, RTE_LOG_INFO);
400 rte_logs.dynamic_types_len = RTE_LOGTYPE_FIRST_EXT_ID;
404 eal_log_level2str(uint32_t level)
407 case 0: return "disabled";
408 case RTE_LOG_EMERG: return "emergency";
409 case RTE_LOG_ALERT: return "alert";
410 case RTE_LOG_CRIT: return "critical";
411 case RTE_LOG_ERR: return "error";
412 case RTE_LOG_WARNING: return "warning";
413 case RTE_LOG_NOTICE: return "notice";
414 case RTE_LOG_INFO: return "info";
415 case RTE_LOG_DEBUG: return "debug";
416 default: return "unknown";
421 log_type_compare(const void *a, const void *b)
423 const struct rte_log_dynamic_type *type_a = a;
424 const struct rte_log_dynamic_type *type_b = b;
426 if (type_a->name == NULL && type_b->name == NULL)
428 if (type_a->name == NULL)
430 if (type_b->name == NULL)
432 return strcmp(type_a->name, type_b->name);
435 /* Dump name of each logtype, one per line. */
437 rte_log_list_types(FILE *out, const char *prefix)
439 struct rte_log_dynamic_type *sorted_types;
440 const size_t type_size = sizeof(rte_logs.dynamic_types[0]);
441 const size_t type_count = rte_logs.dynamic_types_len;
442 const size_t total_size = type_size * type_count;
445 sorted_types = malloc(total_size);
446 if (sorted_types == NULL) {
447 /* no sorting - unlikely */
448 sorted_types = rte_logs.dynamic_types;
450 memcpy(sorted_types, rte_logs.dynamic_types, total_size);
451 qsort(sorted_types, type_count, type_size, log_type_compare);
454 for (type = 0; type < type_count; ++type) {
455 if (sorted_types[type].name == NULL)
457 fprintf(out, "%s%s\n", prefix, sorted_types[type].name);
460 if (sorted_types != rte_logs.dynamic_types)
464 /* dump global level and registered log types */
466 rte_log_dump(FILE *f)
470 fprintf(f, "global log level is %s\n",
471 eal_log_level2str(rte_log_get_global_level()));
473 for (i = 0; i < rte_logs.dynamic_types_len; i++) {
474 if (rte_logs.dynamic_types[i].name == NULL)
476 fprintf(f, "id %zu: %s, level is %s\n",
477 i, rte_logs.dynamic_types[i].name,
478 eal_log_level2str(rte_logs.dynamic_types[i].loglevel));
483 * Generates a log message The message will be sent in the stream
484 * defined by the previous call to rte_openlog_stream().
487 rte_vlog(uint32_t level, uint32_t logtype, const char *format, va_list ap)
489 FILE *f = rte_log_get_stream();
492 if (logtype >= rte_logs.dynamic_types_len)
494 if (!rte_log_can_log(logtype, level))
497 /* save loglevel and logtype in a global per-lcore variable */
498 RTE_PER_LCORE(log_cur_msg).loglevel = level;
499 RTE_PER_LCORE(log_cur_msg).logtype = logtype;
501 ret = vfprintf(f, format, ap);
507 * Generates a log message The message will be sent in the stream
508 * defined by the previous call to rte_openlog_stream().
509 * No need to check level here, done by rte_vlog().
512 rte_log(uint32_t level, uint32_t logtype, const char *format, ...)
517 va_start(ap, format);
518 ret = rte_vlog(level, logtype, format, ap);
524 * Called by environment-specific initialization functions.
527 eal_log_set_default(FILE *default_log)
529 default_log_stream = default_log;
531 #if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
533 "Debug dataplane logs available - lower performance\n");