1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
13 #include <sys/queue.h>
17 #include <rte_os_shim.h>
18 #include <rte_per_lcore.h>
21 #include "eal_private.h"
23 struct rte_log_dynamic_type {
28 /** The rte_log structure. */
29 static struct rte_logs {
30 uint32_t type; /**< Bitfield with enabled logs. */
31 uint32_t level; /**< Log level. */
32 FILE *file; /**< Output file set by rte_openlog_stream, or NULL. */
33 size_t dynamic_types_len;
34 struct rte_log_dynamic_type *dynamic_types;
37 .level = RTE_LOG_DEBUG,
40 struct rte_eal_opt_loglevel {
41 /** Next list entry */
42 TAILQ_ENTRY(rte_eal_opt_loglevel) next;
43 /** Compiled regular expression obtained from the option */
45 /** Globbing pattern option */
47 /** Log level value obtained from the option */
51 TAILQ_HEAD(rte_eal_opt_loglevel_list, rte_eal_opt_loglevel);
53 /** List of valid EAL log level options */
54 static struct rte_eal_opt_loglevel_list opt_loglevel_list =
55 TAILQ_HEAD_INITIALIZER(opt_loglevel_list);
57 /* Stream to use for logging if rte_logs.file is NULL */
58 static FILE *default_log_stream;
61 * This global structure stores some information about the message
62 * that is currently being processed by one lcore
65 uint32_t loglevel; /**< log level - see rte_log.h */
66 uint32_t logtype; /**< log type - see rte_log.h */
70 static RTE_DEFINE_PER_LCORE(struct log_cur_msg, log_cur_msg);
74 /* Change the stream that will be used by logging system */
76 rte_openlog_stream(FILE *f)
83 rte_log_get_stream(void)
85 FILE *f = rte_logs.file;
89 * Grab the current value of stderr here, rather than
90 * just initializing default_log_stream to stderr. This
91 * ensures that we will always use the current value
92 * of stderr, even if the application closes and
95 return default_log_stream ? : stderr;
100 /* Set global log level */
102 rte_log_set_global_level(uint32_t level)
104 rte_logs.level = (uint32_t)level;
107 /* Get global log level */
109 rte_log_get_global_level(void)
111 return rte_logs.level;
115 rte_log_get_level(uint32_t type)
117 if (type >= rte_logs.dynamic_types_len)
120 return rte_logs.dynamic_types[type].loglevel;
124 rte_log_can_log(uint32_t logtype, uint32_t level)
128 if (level > rte_log_get_global_level())
131 log_level = rte_log_get_level(logtype);
135 if (level > (uint32_t)log_level)
142 logtype_set_level(uint32_t type, uint32_t level)
144 uint32_t current = rte_logs.dynamic_types[type].loglevel;
146 if (current != level) {
147 rte_logs.dynamic_types[type].loglevel = level;
148 RTE_LOG(DEBUG, EAL, "%s log level changed from %s to %s\n",
149 rte_logs.dynamic_types[type].name == NULL ?
150 "" : rte_logs.dynamic_types[type].name,
151 eal_log_level2str(current),
152 eal_log_level2str(level));
157 rte_log_set_level(uint32_t type, uint32_t level)
159 if (type >= rte_logs.dynamic_types_len)
161 if (level > RTE_LOG_MAX)
164 logtype_set_level(type, level);
169 /* set log level by regular expression */
171 rte_log_set_level_regexp(const char *regex, uint32_t level)
176 if (level > RTE_LOG_MAX)
179 if (regcomp(&r, regex, 0) != 0)
182 for (i = 0; i < rte_logs.dynamic_types_len; i++) {
183 if (rte_logs.dynamic_types[i].name == NULL)
185 if (regexec(&r, rte_logs.dynamic_types[i].name, 0,
187 logtype_set_level(i, level);
196 * Save the type string and the loglevel for later dynamic
197 * logtypes which may register later.
200 log_save_level(uint32_t priority, const char *regex, const char *pattern)
202 struct rte_eal_opt_loglevel *opt_ll = NULL;
204 opt_ll = malloc(sizeof(*opt_ll));
208 opt_ll->level = priority;
211 opt_ll->pattern = NULL;
212 if (regcomp(&opt_ll->re_match, regex, 0) != 0)
214 } else if (pattern) {
215 opt_ll->pattern = strdup(pattern);
216 if (opt_ll->pattern == NULL)
221 TAILQ_INSERT_HEAD(&opt_loglevel_list, opt_ll, next);
229 eal_log_save_regexp(const char *regex, uint32_t level)
231 return log_save_level(level, regex, NULL);
234 /* set log level based on globbing pattern */
236 rte_log_set_level_pattern(const char *pattern, uint32_t level)
240 if (level > RTE_LOG_MAX)
243 for (i = 0; i < rte_logs.dynamic_types_len; i++) {
244 if (rte_logs.dynamic_types[i].name == NULL)
247 if (fnmatch(pattern, rte_logs.dynamic_types[i].name, 0) == 0)
248 logtype_set_level(i, level);
255 eal_log_save_pattern(const char *pattern, uint32_t level)
257 return log_save_level(level, NULL, pattern);
260 /* get the current loglevel for the message being processed */
261 int rte_log_cur_msg_loglevel(void)
263 return RTE_PER_LCORE(log_cur_msg).loglevel;
266 /* get the current logtype for the message being processed */
267 int rte_log_cur_msg_logtype(void)
269 return RTE_PER_LCORE(log_cur_msg).logtype;
273 log_lookup(const char *name)
277 for (i = 0; i < rte_logs.dynamic_types_len; i++) {
278 if (rte_logs.dynamic_types[i].name == NULL)
280 if (strcmp(name, rte_logs.dynamic_types[i].name) == 0)
288 log_register(const char *name, uint32_t level)
290 struct rte_log_dynamic_type *new_dynamic_types;
293 id = log_lookup(name);
297 new_dynamic_types = realloc(rte_logs.dynamic_types,
298 sizeof(struct rte_log_dynamic_type) *
299 (rte_logs.dynamic_types_len + 1));
300 if (new_dynamic_types == NULL)
302 rte_logs.dynamic_types = new_dynamic_types;
304 id = rte_logs.dynamic_types_len;
305 memset(&rte_logs.dynamic_types[id], 0,
306 sizeof(rte_logs.dynamic_types[id]));
307 rte_logs.dynamic_types[id].name = strdup(name);
308 if (rte_logs.dynamic_types[id].name == NULL)
310 logtype_set_level(id, level);
312 rte_logs.dynamic_types_len++;
317 /* register an extended log type */
319 rte_log_register(const char *name)
321 return log_register(name, RTE_LOG_INFO);
324 /* Register an extended log type and try to pick its level from EAL options */
326 rte_log_register_type_and_pick_level(const char *name, uint32_t level_def)
328 struct rte_eal_opt_loglevel *opt_ll;
329 uint32_t level = level_def;
331 TAILQ_FOREACH(opt_ll, &opt_loglevel_list, next) {
332 if (opt_ll->level > RTE_LOG_MAX)
335 if (opt_ll->pattern) {
336 if (fnmatch(opt_ll->pattern, name, 0) == 0)
337 level = opt_ll->level;
339 if (regexec(&opt_ll->re_match, name, 0, NULL, 0) == 0)
340 level = opt_ll->level;
344 return log_register(name, level);
352 static const struct logtype logtype_strings[] = {
353 {RTE_LOGTYPE_EAL, "lib.eal"},
354 {RTE_LOGTYPE_MALLOC, "lib.malloc"},
355 {RTE_LOGTYPE_RING, "lib.ring"},
356 {RTE_LOGTYPE_MEMPOOL, "lib.mempool"},
357 {RTE_LOGTYPE_TIMER, "lib.timer"},
358 {RTE_LOGTYPE_PMD, "pmd"},
359 {RTE_LOGTYPE_HASH, "lib.hash"},
360 {RTE_LOGTYPE_LPM, "lib.lpm"},
361 {RTE_LOGTYPE_KNI, "lib.kni"},
362 {RTE_LOGTYPE_ACL, "lib.acl"},
363 {RTE_LOGTYPE_POWER, "lib.power"},
364 {RTE_LOGTYPE_METER, "lib.meter"},
365 {RTE_LOGTYPE_SCHED, "lib.sched"},
366 {RTE_LOGTYPE_PORT, "lib.port"},
367 {RTE_LOGTYPE_TABLE, "lib.table"},
368 {RTE_LOGTYPE_PIPELINE, "lib.pipeline"},
369 {RTE_LOGTYPE_MBUF, "lib.mbuf"},
370 {RTE_LOGTYPE_CRYPTODEV, "lib.cryptodev"},
371 {RTE_LOGTYPE_EFD, "lib.efd"},
372 {RTE_LOGTYPE_EVENTDEV, "lib.eventdev"},
373 {RTE_LOGTYPE_GSO, "lib.gso"},
374 {RTE_LOGTYPE_USER1, "user1"},
375 {RTE_LOGTYPE_USER2, "user2"},
376 {RTE_LOGTYPE_USER3, "user3"},
377 {RTE_LOGTYPE_USER4, "user4"},
378 {RTE_LOGTYPE_USER5, "user5"},
379 {RTE_LOGTYPE_USER6, "user6"},
380 {RTE_LOGTYPE_USER7, "user7"},
381 {RTE_LOGTYPE_USER8, "user8"}
384 /* Logging should be first initializer (before drivers and bus) */
385 RTE_INIT_PRIO(log_init, LOG)
389 rte_log_set_global_level(RTE_LOG_DEBUG);
391 rte_logs.dynamic_types = calloc(RTE_LOGTYPE_FIRST_EXT_ID,
392 sizeof(struct rte_log_dynamic_type));
393 if (rte_logs.dynamic_types == NULL)
396 /* register legacy log types */
397 for (i = 0; i < RTE_DIM(logtype_strings); i++) {
398 rte_logs.dynamic_types[logtype_strings[i].log_id].name =
399 strdup(logtype_strings[i].logtype);
400 logtype_set_level(logtype_strings[i].log_id, RTE_LOG_INFO);
403 rte_logs.dynamic_types_len = RTE_LOGTYPE_FIRST_EXT_ID;
407 eal_log_level2str(uint32_t level)
410 case 0: return "disabled";
411 case RTE_LOG_EMERG: return "emergency";
412 case RTE_LOG_ALERT: return "alert";
413 case RTE_LOG_CRIT: return "critical";
414 case RTE_LOG_ERR: return "error";
415 case RTE_LOG_WARNING: return "warning";
416 case RTE_LOG_NOTICE: return "notice";
417 case RTE_LOG_INFO: return "info";
418 case RTE_LOG_DEBUG: return "debug";
419 default: return "unknown";
424 log_type_compare(const void *a, const void *b)
426 const struct rte_log_dynamic_type *type_a = a;
427 const struct rte_log_dynamic_type *type_b = b;
429 if (type_a->name == NULL && type_b->name == NULL)
431 if (type_a->name == NULL)
433 if (type_b->name == NULL)
435 return strcmp(type_a->name, type_b->name);
438 /* Dump name of each logtype, one per line. */
440 rte_log_list_types(FILE *out, const char *prefix)
442 struct rte_log_dynamic_type *sorted_types;
443 const size_t type_size = sizeof(rte_logs.dynamic_types[0]);
444 const size_t type_count = rte_logs.dynamic_types_len;
445 const size_t total_size = type_size * type_count;
448 sorted_types = malloc(total_size);
449 if (sorted_types == NULL) {
450 /* no sorting - unlikely */
451 sorted_types = rte_logs.dynamic_types;
453 memcpy(sorted_types, rte_logs.dynamic_types, total_size);
454 qsort(sorted_types, type_count, type_size, log_type_compare);
457 for (type = 0; type < type_count; ++type) {
458 if (sorted_types[type].name == NULL)
460 fprintf(out, "%s%s\n", prefix, sorted_types[type].name);
463 if (sorted_types != rte_logs.dynamic_types)
467 /* dump global level and registered log types */
469 rte_log_dump(FILE *f)
473 fprintf(f, "global log level is %s\n",
474 eal_log_level2str(rte_log_get_global_level()));
476 for (i = 0; i < rte_logs.dynamic_types_len; i++) {
477 if (rte_logs.dynamic_types[i].name == NULL)
479 fprintf(f, "id %zu: %s, level is %s\n",
480 i, rte_logs.dynamic_types[i].name,
481 eal_log_level2str(rte_logs.dynamic_types[i].loglevel));
486 * Generates a log message The message will be sent in the stream
487 * defined by the previous call to rte_openlog_stream().
490 rte_vlog(uint32_t level, uint32_t logtype, const char *format, va_list ap)
492 FILE *f = rte_log_get_stream();
495 if (logtype >= rte_logs.dynamic_types_len)
497 if (!rte_log_can_log(logtype, level))
500 /* save loglevel and logtype in a global per-lcore variable */
501 RTE_PER_LCORE(log_cur_msg).loglevel = level;
502 RTE_PER_LCORE(log_cur_msg).logtype = logtype;
504 ret = vfprintf(f, format, ap);
510 * Generates a log message The message will be sent in the stream
511 * defined by the previous call to rte_openlog_stream().
512 * No need to check level here, done by rte_vlog().
515 rte_log(uint32_t level, uint32_t logtype, const char *format, ...)
520 va_start(ap, format);
521 ret = rte_vlog(level, logtype, format, ap);
527 * Called by environment-specific initialization functions.
530 eal_log_set_default(FILE *default_log)
532 default_log_stream = default_log;
534 #if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
536 "Debug dataplane logs available - lower performance\n");
541 * Called by eal_cleanup
544 rte_eal_log_cleanup(void)
546 if (default_log_stream) {
547 fclose(default_log_stream);
548 default_log_stream = NULL;