[ceph.git] / ceph / src / seastar / dpdk / lib / librte_eal / common / eal_common_log.c

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2010-2014 Intel Corporation
 */

#include <stdio.h>
#include <stdint.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <regex.h>
#include <fnmatch.h>

#include <rte_eal.h>
#include <rte_log.h>
#include <rte_per_lcore.h>

#include "eal_private.h"

/* global log structure */
struct rte_logs rte_logs = {
	.type = ~0,
	.level = RTE_LOG_DEBUG,
	.file = NULL,
};

struct rte_eal_opt_loglevel {
	/** Next list entry */
	TAILQ_ENTRY(rte_eal_opt_loglevel) next;
	/** Compiled regular expression obtained from the option */
	regex_t re_match;
	/** Glob match string option */
	char *pattern;
	/** Log level value obtained from the option */
	uint32_t level;
};

TAILQ_HEAD(rte_eal_opt_loglevel_list, rte_eal_opt_loglevel);

/** List of valid EAL log level options */
static struct rte_eal_opt_loglevel_list opt_loglevel_list =
	TAILQ_HEAD_INITIALIZER(opt_loglevel_list);

/* Stream to use for logging if rte_logs.file is NULL */
static FILE *default_log_stream;

/**
 * This global structure stores some informations about the message
 * that is currently being processed by one lcore
 */
struct log_cur_msg {
	uint32_t loglevel; /**< log level - see rte_log.h */
	uint32_t logtype;  /**< log type  - see rte_log.h */
};

struct rte_log_dynamic_type {
	const char *name;
	uint32_t loglevel;
};

 /* per core log */
static RTE_DEFINE_PER_LCORE(struct log_cur_msg, log_cur_msg);

/* default logs */

/* Change the stream that will be used by logging system */
int
rte_openlog_stream(FILE *f)
{
	rte_logs.file = f;
	return 0;
}

/* Set global log level */
void
rte_log_set_global_level(uint32_t level)
{
	rte_logs.level = (uint32_t)level;
}

/* Get global log level */
uint32_t
rte_log_get_global_level(void)
{
	return rte_logs.level;
}

int
rte_log_get_level(uint32_t type)
{
	if (type >= rte_logs.dynamic_types_len)
		return -1;

	return rte_logs.dynamic_types[type].loglevel;
}

int
rte_log_set_level(uint32_t type, uint32_t level)
{
	if (type >= rte_logs.dynamic_types_len)
		return -1;
	if (level > RTE_LOG_DEBUG)
		return -1;

	rte_logs.dynamic_types[type].loglevel = level;

	return 0;
}

/* set log level by regular expression */
int
rte_log_set_level_regexp(const char *regex, uint32_t level)
{
	regex_t r;
	size_t i;

	if (level > RTE_LOG_DEBUG)
		return -1;

	if (regcomp(&r, regex, 0) != 0)
		return -1;

	for (i = 0; i < rte_logs.dynamic_types_len; i++) {
		if (rte_logs.dynamic_types[i].name == NULL)
			continue;
		if (regexec(&r, rte_logs.dynamic_types[i].name, 0,
				NULL, 0) == 0)
			rte_logs.dynamic_types[i].loglevel = level;
	}

	regfree(&r);

	return 0;
}

/*
 * Save the type string and the loglevel for later dynamic
 * logtypes which may register later.
 */
static int rte_log_save_level(int priority,
			      const char *regex, const char *pattern)
{
	struct rte_eal_opt_loglevel *opt_ll = NULL;

	opt_ll = malloc(sizeof(*opt_ll));
	if (opt_ll == NULL)
		goto fail;

	opt_ll->level = priority;

	if (regex) {
		opt_ll->pattern = NULL;
		if (regcomp(&opt_ll->re_match, regex, 0) != 0)
			goto fail;
	} else if (pattern) {
		opt_ll->pattern = strdup(pattern);
		if (opt_ll->pattern == NULL)
			goto fail;
	} else
		goto fail;

	TAILQ_INSERT_HEAD(&opt_loglevel_list, opt_ll, next);
	return 0;
fail:
	free(opt_ll);
	return -1;
}

int rte_log_save_regexp(const char *regex, int tmp)
{
	return rte_log_save_level(tmp, regex, NULL);
}

/* set log level based on glob (file match) pattern */
int
rte_log_set_level_pattern(const char *pattern, uint32_t level)
{
	size_t i;

	if (level > RTE_LOG_DEBUG)
		return -1;

	for (i = 0; i < rte_logs.dynamic_types_len; i++) {
		if (rte_logs.dynamic_types[i].name == NULL)
			continue;

		if (fnmatch(pattern, rte_logs.dynamic_types[i].name, 0) == 0)
			rte_logs.dynamic_types[i].loglevel = level;
	}

	return 0;
}

int rte_log_save_pattern(const char *pattern, int priority)
{
	return rte_log_save_level(priority, NULL, pattern);
}

/* get the current loglevel for the message being processed */
int rte_log_cur_msg_loglevel(void)
{
	return RTE_PER_LCORE(log_cur_msg).loglevel;
}

/* get the current logtype for the message being processed */
int rte_log_cur_msg_logtype(void)
{
	return RTE_PER_LCORE(log_cur_msg).logtype;
}

static int
rte_log_lookup(const char *name)
{
	size_t i;

	for (i = 0; i < rte_logs.dynamic_types_len; i++) {
		if (rte_logs.dynamic_types[i].name == NULL)
			continue;
		if (strcmp(name, rte_logs.dynamic_types[i].name) == 0)
			return i;
	}

	return -1;
}

/* register an extended log type, assuming table is large enough, and id
 * is not yet registered.
 */
static int
__rte_log_register(const char *name, int id)
{
	char *dup_name = strdup(name);

	if (dup_name == NULL)
		return -ENOMEM;

	rte_logs.dynamic_types[id].name = dup_name;
	rte_logs.dynamic_types[id].loglevel = RTE_LOG_INFO;

	return id;
}

/* register an extended log type */
int
rte_log_register(const char *name)
{
	struct rte_log_dynamic_type *new_dynamic_types;
	int id, ret;

	id = rte_log_lookup(name);
	if (id >= 0)
		return id;

	new_dynamic_types = realloc(rte_logs.dynamic_types,
		sizeof(struct rte_log_dynamic_type) *
		(rte_logs.dynamic_types_len + 1));
	if (new_dynamic_types == NULL)
		return -ENOMEM;
	rte_logs.dynamic_types = new_dynamic_types;

	ret = __rte_log_register(name, rte_logs.dynamic_types_len);
	if (ret < 0)
		return ret;

	rte_logs.dynamic_types_len++;

	return ret;
}

/* Register an extended log type and try to pick its level from EAL options */
int __rte_experimental
rte_log_register_type_and_pick_level(const char *name, uint32_t level_def)
{
	struct rte_eal_opt_loglevel *opt_ll;
	uint32_t level = level_def;
	int type;

	type = rte_log_register(name);
	if (type < 0)
		return type;

	TAILQ_FOREACH(opt_ll, &opt_loglevel_list, next) {
		if (opt_ll->level > RTE_LOG_DEBUG)
			continue;

		if (opt_ll->pattern) {
			if (fnmatch(opt_ll->pattern, name, 0))
				level = opt_ll->level;
		} else {
			if (regexec(&opt_ll->re_match, name, 0, NULL, 0) == 0)
				level = opt_ll->level;
		}
	}

	rte_logs.dynamic_types[type].loglevel = level;

	return type;
}

struct logtype {
	uint32_t log_id;
	const char *logtype;
};

static const struct logtype logtype_strings[] = {
	{RTE_LOGTYPE_EAL,        "lib.eal"},
	{RTE_LOGTYPE_MALLOC,     "lib.malloc"},
	{RTE_LOGTYPE_RING,       "lib.ring"},
	{RTE_LOGTYPE_MEMPOOL,    "lib.mempool"},
	{RTE_LOGTYPE_TIMER,      "lib.timer"},
	{RTE_LOGTYPE_PMD,        "pmd"},
	{RTE_LOGTYPE_HASH,       "lib.hash"},
	{RTE_LOGTYPE_LPM,        "lib.lpm"},
	{RTE_LOGTYPE_KNI,        "lib.kni"},
	{RTE_LOGTYPE_ACL,        "lib.acl"},
	{RTE_LOGTYPE_POWER,      "lib.power"},
	{RTE_LOGTYPE_METER,      "lib.meter"},
	{RTE_LOGTYPE_SCHED,      "lib.sched"},
	{RTE_LOGTYPE_PORT,       "lib.port"},
	{RTE_LOGTYPE_TABLE,      "lib.table"},
	{RTE_LOGTYPE_PIPELINE,   "lib.pipeline"},
	{RTE_LOGTYPE_MBUF,       "lib.mbuf"},
	{RTE_LOGTYPE_CRYPTODEV,  "lib.cryptodev"},
	{RTE_LOGTYPE_EFD,        "lib.efd"},
	{RTE_LOGTYPE_EVENTDEV,   "lib.eventdev"},
	{RTE_LOGTYPE_GSO,        "lib.gso"},
	{RTE_LOGTYPE_USER1,      "user1"},
	{RTE_LOGTYPE_USER2,      "user2"},
	{RTE_LOGTYPE_USER3,      "user3"},
	{RTE_LOGTYPE_USER4,      "user4"},
	{RTE_LOGTYPE_USER5,      "user5"},
	{RTE_LOGTYPE_USER6,      "user6"},
	{RTE_LOGTYPE_USER7,      "user7"},
	{RTE_LOGTYPE_USER8,      "user8"}
};

/* Logging should be first initializer (before drivers and bus) */
RTE_INIT_PRIO(rte_log_init, LOG)
{
	uint32_t i;

	rte_log_set_global_level(RTE_LOG_DEBUG);

	rte_logs.dynamic_types = calloc(RTE_LOGTYPE_FIRST_EXT_ID,
		sizeof(struct rte_log_dynamic_type));
	if (rte_logs.dynamic_types == NULL)
		return;

	/* register legacy log types */
	for (i = 0; i < RTE_DIM(logtype_strings); i++)
		__rte_log_register(logtype_strings[i].logtype,
				logtype_strings[i].log_id);

	rte_logs.dynamic_types_len = RTE_LOGTYPE_FIRST_EXT_ID;
}

static const char *
loglevel_to_string(uint32_t level)
{
	switch (level) {
	case 0: return "disabled";
	case RTE_LOG_EMERG: return "emerg";
	case RTE_LOG_ALERT: return "alert";
	case RTE_LOG_CRIT: return "critical";
	case RTE_LOG_ERR: return "error";
	case RTE_LOG_WARNING: return "warning";
	case RTE_LOG_NOTICE: return "notice";
	case RTE_LOG_INFO: return "info";
	case RTE_LOG_DEBUG: return "debug";
	default: return "unknown";
	}
}

/* dump global level and registered log types */
void
rte_log_dump(FILE *f)
{
	size_t i;

	fprintf(f, "global log level is %s\n",
		loglevel_to_string(rte_log_get_global_level()));

	for (i = 0; i < rte_logs.dynamic_types_len; i++) {
		if (rte_logs.dynamic_types[i].name == NULL)
			continue;
		fprintf(f, "id %zu: %s, level is %s\n",
			i, rte_logs.dynamic_types[i].name,
			loglevel_to_string(rte_logs.dynamic_types[i].loglevel));
	}
}

/*
 * Generates a log message The message will be sent in the stream
 * defined by the previous call to rte_openlog_stream().
 */
int
rte_vlog(uint32_t level, uint32_t logtype, const char *format, va_list ap)
{
	int ret;
	FILE *f = rte_logs.file;
	if (f == NULL) {
		f = default_log_stream;
		if (f == NULL) {
			/*
			 * Grab the current value of stderr here, rather than
			 * just initializing default_log_stream to stderr. This
			 * ensures that we will always use the current value
			 * of stderr, even if the application closes and
			 * reopens it.
			 */
			f = stderr;
		}
	}

	if (level > rte_logs.level)
		return 0;
	if (logtype >= rte_logs.dynamic_types_len)
		return -1;
	if (level > rte_logs.dynamic_types[logtype].loglevel)
		return 0;

	/* save loglevel and logtype in a global per-lcore variable */
	RTE_PER_LCORE(log_cur_msg).loglevel = level;
	RTE_PER_LCORE(log_cur_msg).logtype = logtype;

	ret = vfprintf(f, format, ap);
	fflush(f);
	return ret;
}

/*
 * Generates a log message The message will be sent in the stream
 * defined by the previous call to rte_openlog_stream().
 * No need to check level here, done by rte_vlog().
 */
int
rte_log(uint32_t level, uint32_t logtype, const char *format, ...)
{
	va_list ap;
	int ret;

	va_start(ap, format);
	ret = rte_vlog(level, logtype, format, ap);
	va_end(ap);
	return ret;
}

/*
 * Called by environment-specific initialization functions.
 */
void
eal_log_set_default(FILE *default_log)
{
	default_log_stream = default_log;

#if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
	RTE_LOG(NOTICE, EAL,
		"Debug dataplane logs available - lower performance\n");
#endif
}
Commit	Line	Data
9f95a23c TL	1	/* SPDX-License-Identifier: BSD-3-Clause
9f95a23c TL	2	* Copyright(c) 2010-2014 Intel Corporation
11fdf7f2 TL	3	*/
	4
	5	#include <stdio.h>
	6	#include <stdint.h>
	7	#include <stdarg.h>
	8	#include <stdlib.h>
	9	#include <string.h>
	10	#include <errno.h>
	11	#include <regex.h>
9f95a23c	12	#include <fnmatch.h>
11fdf7f2 TL	13
	14	#include <rte_eal.h>
	15	#include <rte_log.h>
	16	#include <rte_per_lcore.h>
	17
	18	#include "eal_private.h"
	19
	20	/* global log structure */
	21	struct rte_logs rte_logs = {
	22	.type = ~0,
	23	.level = RTE_LOG_DEBUG,
	24	.file = NULL,
	25	};
	26
9f95a23c TL	27	struct rte_eal_opt_loglevel {
	28	/** Next list entry */
	29	TAILQ_ENTRY(rte_eal_opt_loglevel) next;
	30	/** Compiled regular expression obtained from the option */
	31	regex_t re_match;
	32	/** Glob match string option */
	33	char *pattern;
	34	/** Log level value obtained from the option */
	35	uint32_t level;
	36	};
	37
	38	TAILQ_HEAD(rte_eal_opt_loglevel_list, rte_eal_opt_loglevel);
	39
	40	/** List of valid EAL log level options */
	41	static struct rte_eal_opt_loglevel_list opt_loglevel_list =
	42	TAILQ_HEAD_INITIALIZER(opt_loglevel_list);
	43
11fdf7f2 TL	44	/* Stream to use for logging if rte_logs.file is NULL */
	45	static FILE *default_log_stream;
	46
	47	/**
	48	* This global structure stores some informations about the message
	49	* that is currently being processed by one lcore
	50	*/
	51	struct log_cur_msg {
	52	uint32_t loglevel; /*< log level - see rte_log.h /
	53	uint32_t logtype; /*< log type - see rte_log.h /
	54	};
	55
	56	struct rte_log_dynamic_type {
	57	const char *name;
	58	uint32_t loglevel;
	59	};
	60
	61	/* per core log */
	62	static RTE_DEFINE_PER_LCORE(struct log_cur_msg, log_cur_msg);
	63
	64	/* default logs */
	65
	66	/* Change the stream that will be used by logging system */
	67	int
	68	rte_openlog_stream(FILE *f)
	69	{
	70	rte_logs.file = f;
	71	return 0;
	72	}
	73
	74	/* Set global log level */
	75	void
	76	rte_log_set_global_level(uint32_t level)
	77	{
	78	rte_logs.level = (uint32_t)level;
	79	}
	80
11fdf7f2 TL	81	/* Get global log level */
	82	uint32_t
	83	rte_log_get_global_level(void)
	84	{
	85	return rte_logs.level;
	86	}
	87
9f95a23c TL	88	int
9f95a23c TL	89	rte_log_get_level(uint32_t type)
11fdf7f2	90	{
9f95a23c TL	91	if (type >= rte_logs.dynamic_types_len)
9f95a23c TL	92	return -1;
11fdf7f2	93
9f95a23c	94	return rte_logs.dynamic_types[type].loglevel;
11fdf7f2 TL	95	}
	96
	97	int
	98	rte_log_set_level(uint32_t type, uint32_t level)
	99	{
	100	if (type >= rte_logs.dynamic_types_len)
	101	return -1;
	102	if (level > RTE_LOG_DEBUG)
	103	return -1;
	104
	105	rte_logs.dynamic_types[type].loglevel = level;
	106
	107	return 0;
	108	}
	109
9f95a23c	110	/* set log level by regular expression */
11fdf7f2	111	int
9f95a23c	112	rte_log_set_level_regexp(const char *regex, uint32_t level)
11fdf7f2 TL	113	{
	114	regex_t r;
	115	size_t i;
	116
	117	if (level > RTE_LOG_DEBUG)
	118	return -1;
	119
9f95a23c	120	if (regcomp(&r, regex, 0) != 0)
11fdf7f2 TL	121	return -1;
	122
	123	for (i = 0; i < rte_logs.dynamic_types_len; i++) {
	124	if (rte_logs.dynamic_types[i].name == NULL)
	125	continue;
	126	if (regexec(&r, rte_logs.dynamic_types[i].name, 0,
	127	NULL, 0) == 0)
	128	rte_logs.dynamic_types[i].loglevel = level;
	129	}
	130
9f95a23c TL	131	regfree(&r);
9f95a23c TL	132
11fdf7f2 TL	133	return 0;
	134	}
	135
9f95a23c TL	136	/*
	137	* Save the type string and the loglevel for later dynamic
	138	* logtypes which may register later.
	139	*/
	140	static int rte_log_save_level(int priority,
	141	const char regex, const char pattern)
	142	{
	143	struct rte_eal_opt_loglevel *opt_ll = NULL;
	144
	145	opt_ll = malloc(sizeof(*opt_ll));
	146	if (opt_ll == NULL)
	147	goto fail;
	148
	149	opt_ll->level = priority;
	150
	151	if (regex) {
	152	opt_ll->pattern = NULL;
	153	if (regcomp(&opt_ll->re_match, regex, 0) != 0)
	154	goto fail;
	155	} else if (pattern) {
	156	opt_ll->pattern = strdup(pattern);
	157	if (opt_ll->pattern == NULL)
	158	goto fail;
	159	} else
	160	goto fail;
	161
	162	TAILQ_INSERT_HEAD(&opt_loglevel_list, opt_ll, next);
	163	return 0;
	164	fail:
	165	free(opt_ll);
	166	return -1;
	167	}
	168
	169	int rte_log_save_regexp(const char *regex, int tmp)
	170	{
	171	return rte_log_save_level(tmp, regex, NULL);
	172	}
	173
	174	/* set log level based on glob (file match) pattern */
	175	int
	176	rte_log_set_level_pattern(const char *pattern, uint32_t level)
	177	{
	178	size_t i;
	179
	180	if (level > RTE_LOG_DEBUG)
	181	return -1;
	182
	183	for (i = 0; i < rte_logs.dynamic_types_len; i++) {
	184	if (rte_logs.dynamic_types[i].name == NULL)
	185	continue;
	186
	187	if (fnmatch(pattern, rte_logs.dynamic_types[i].name, 0) == 0)
	188	rte_logs.dynamic_types[i].loglevel = level;
	189	}
	190
	191	return 0;
	192	}
	193
	194	int rte_log_save_pattern(const char *pattern, int priority)
	195	{
	196	return rte_log_save_level(priority, NULL, pattern);
	197	}
	198
	199	/* get the current loglevel for the message being processed */
11fdf7f2 TL	200	int rte_log_cur_msg_loglevel(void)
	201	{
	202	return RTE_PER_LCORE(log_cur_msg).loglevel;
	203	}
	204
9f95a23c	205	/* get the current logtype for the message being processed */
11fdf7f2 TL	206	int rte_log_cur_msg_logtype(void)
	207	{
	208	return RTE_PER_LCORE(log_cur_msg).logtype;
	209	}
	210
	211	static int
	212	rte_log_lookup(const char *name)
	213	{
	214	size_t i;
	215
	216	for (i = 0; i < rte_logs.dynamic_types_len; i++) {
	217	if (rte_logs.dynamic_types[i].name == NULL)
	218	continue;
	219	if (strcmp(name, rte_logs.dynamic_types[i].name) == 0)
	220	return i;
	221	}
	222
	223	return -1;
	224	}
	225
	226	/* register an extended log type, assuming table is large enough, and id
	227	* is not yet registered.
	228	*/
	229	static int
	230	__rte_log_register(const char *name, int id)
	231	{
	232	char *dup_name = strdup(name);
	233
	234	if (dup_name == NULL)
	235	return -ENOMEM;
	236
	237	rte_logs.dynamic_types[id].name = dup_name;
9f95a23c	238	rte_logs.dynamic_types[id].loglevel = RTE_LOG_INFO;
11fdf7f2 TL	239
	240	return id;
	241	}
	242
	243	/* register an extended log type */
	244	int
	245	rte_log_register(const char *name)
	246	{
	247	struct rte_log_dynamic_type *new_dynamic_types;
	248	int id, ret;
	249
	250	id = rte_log_lookup(name);
	251	if (id >= 0)
	252	return id;
	253
	254	new_dynamic_types = realloc(rte_logs.dynamic_types,
	255	sizeof(struct rte_log_dynamic_type) *
	256	(rte_logs.dynamic_types_len + 1));
	257	if (new_dynamic_types == NULL)
	258	return -ENOMEM;
	259	rte_logs.dynamic_types = new_dynamic_types;
	260
	261	ret = __rte_log_register(name, rte_logs.dynamic_types_len);
	262	if (ret < 0)
	263	return ret;
	264
	265	rte_logs.dynamic_types_len++;
	266
	267	return ret;
	268	}
	269
9f95a23c TL	270	/* Register an extended log type and try to pick its level from EAL options */
	271	int __rte_experimental
	272	rte_log_register_type_and_pick_level(const char *name, uint32_t level_def)
	273	{
	274	struct rte_eal_opt_loglevel *opt_ll;
	275	uint32_t level = level_def;
	276	int type;
	277
	278	type = rte_log_register(name);
	279	if (type < 0)
	280	return type;
	281
	282	TAILQ_FOREACH(opt_ll, &opt_loglevel_list, next) {
	283	if (opt_ll->level > RTE_LOG_DEBUG)
	284	continue;
	285
	286	if (opt_ll->pattern) {
	287	if (fnmatch(opt_ll->pattern, name, 0))
	288	level = opt_ll->level;
	289	} else {
	290	if (regexec(&opt_ll->re_match, name, 0, NULL, 0) == 0)
	291	level = opt_ll->level;
	292	}
	293	}
	294
	295	rte_logs.dynamic_types[type].loglevel = level;
	296
	297	return type;
	298	}
	299
11fdf7f2 TL	300	struct logtype {
	301	uint32_t log_id;
	302	const char *logtype;
	303	};
	304
	305	static const struct logtype logtype_strings[] = {
9f95a23c TL	306	{RTE_LOGTYPE_EAL, "lib.eal"},
	307	{RTE_LOGTYPE_MALLOC, "lib.malloc"},
	308	{RTE_LOGTYPE_RING, "lib.ring"},
	309	{RTE_LOGTYPE_MEMPOOL, "lib.mempool"},
	310	{RTE_LOGTYPE_TIMER, "lib.timer"},
11fdf7f2	311	{RTE_LOGTYPE_PMD, "pmd"},
9f95a23c TL	312	{RTE_LOGTYPE_HASH, "lib.hash"},
	313	{RTE_LOGTYPE_LPM, "lib.lpm"},
	314	{RTE_LOGTYPE_KNI, "lib.kni"},
	315	{RTE_LOGTYPE_ACL, "lib.acl"},
	316	{RTE_LOGTYPE_POWER, "lib.power"},
	317	{RTE_LOGTYPE_METER, "lib.meter"},
	318	{RTE_LOGTYPE_SCHED, "lib.sched"},
	319	{RTE_LOGTYPE_PORT, "lib.port"},
	320	{RTE_LOGTYPE_TABLE, "lib.table"},
	321	{RTE_LOGTYPE_PIPELINE, "lib.pipeline"},
	322	{RTE_LOGTYPE_MBUF, "lib.mbuf"},
	323	{RTE_LOGTYPE_CRYPTODEV, "lib.cryptodev"},
	324	{RTE_LOGTYPE_EFD, "lib.efd"},
	325	{RTE_LOGTYPE_EVENTDEV, "lib.eventdev"},
	326	{RTE_LOGTYPE_GSO, "lib.gso"},
11fdf7f2 TL	327	{RTE_LOGTYPE_USER1, "user1"},
	328	{RTE_LOGTYPE_USER2, "user2"},
	329	{RTE_LOGTYPE_USER3, "user3"},
	330	{RTE_LOGTYPE_USER4, "user4"},
	331	{RTE_LOGTYPE_USER5, "user5"},
	332	{RTE_LOGTYPE_USER6, "user6"},
	333	{RTE_LOGTYPE_USER7, "user7"},
	334	{RTE_LOGTYPE_USER8, "user8"}
	335	};
	336
9f95a23c TL	337	/* Logging should be first initializer (before drivers and bus) */
9f95a23c TL	338	RTE_INIT_PRIO(rte_log_init, LOG)
11fdf7f2 TL	339	{
	340	uint32_t i;
	341
9f95a23c	342	rte_log_set_global_level(RTE_LOG_DEBUG);
11fdf7f2 TL	343
	344	rte_logs.dynamic_types = calloc(RTE_LOGTYPE_FIRST_EXT_ID,
	345	sizeof(struct rte_log_dynamic_type));
	346	if (rte_logs.dynamic_types == NULL)
	347	return;
	348
	349	/* register legacy log types */
	350	for (i = 0; i < RTE_DIM(logtype_strings); i++)
	351	__rte_log_register(logtype_strings[i].logtype,
	352	logtype_strings[i].log_id);
	353
	354	rte_logs.dynamic_types_len = RTE_LOGTYPE_FIRST_EXT_ID;
	355	}
	356
	357	static const char *
	358	loglevel_to_string(uint32_t level)
	359	{
	360	switch (level) {
	361	case 0: return "disabled";
	362	case RTE_LOG_EMERG: return "emerg";
	363	case RTE_LOG_ALERT: return "alert";
	364	case RTE_LOG_CRIT: return "critical";
	365	case RTE_LOG_ERR: return "error";
	366	case RTE_LOG_WARNING: return "warning";
	367	case RTE_LOG_NOTICE: return "notice";
	368	case RTE_LOG_INFO: return "info";
	369	case RTE_LOG_DEBUG: return "debug";
	370	default: return "unknown";
	371	}
	372	}
	373
	374	/* dump global level and registered log types */
	375	void
	376	rte_log_dump(FILE *f)
	377	{
	378	size_t i;
	379
	380	fprintf(f, "global log level is %s\n",
	381	loglevel_to_string(rte_log_get_global_level()));
	382
	383	for (i = 0; i < rte_logs.dynamic_types_len; i++) {
	384	if (rte_logs.dynamic_types[i].name == NULL)
	385	continue;
	386	fprintf(f, "id %zu: %s, level is %s\n",
	387	i, rte_logs.dynamic_types[i].name,
	388	loglevel_to_string(rte_logs.dynamic_types[i].loglevel));
	389	}
	390	}
	391
	392	/*
	393	* Generates a log message The message will be sent in the stream
	394	* defined by the previous call to rte_openlog_stream().
	395	*/
	396	int
	397	rte_vlog(uint32_t level, uint32_t logtype, const char *format, va_list ap)
	398	{
	399	int ret;
	400	FILE *f = rte_logs.file;
	401	if (f == NULL) {
	402	f = default_log_stream;
	403	if (f == NULL) {
	404	/*
	405	* Grab the current value of stderr here, rather than
	406	* just initializing default_log_stream to stderr. This
407	* ensures that we will always use the current value
408	* of stderr, even if the application closes and
409	* reopens it.
410	*/
411	f = stderr;
412	}
413	}
414
415	if (level > rte_logs.level)
416	return 0;
417	if (logtype >= rte_logs.dynamic_types_len)
418	return -1;
419	if (level > rte_logs.dynamic_types[logtype].loglevel)
420	return 0;
421
422	/* save loglevel and logtype in a global per-lcore variable */
423	RTE_PER_LCORE(log_cur_msg).loglevel = level;
424	RTE_PER_LCORE(log_cur_msg).logtype = logtype;
425
426	ret = vfprintf(f, format, ap);
427	fflush(f);
428	return ret;
429	}
430
431	/*
432	* Generates a log message The message will be sent in the stream
433	* defined by the previous call to rte_openlog_stream().
434	* No need to check level here, done by rte_vlog().
435	*/
436	int
437	rte_log(uint32_t level, uint32_t logtype, const char *format, ...)
438	{
439	va_list ap;
440	int ret;
441
442	va_start(ap, format);
443	ret = rte_vlog(level, logtype, format, ap);
444	va_end(ap);
445	return ret;
446	}
447
448	/*
449	* Called by environment-specific initialization functions.
450	*/
451	void
452	eal_log_set_default(FILE *default_log)
453	{
454	default_log_stream = default_log;
455
456	#if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
457	RTE_LOG(NOTICE, EAL,
458	"Debug dataplane logs available - lower performance\n");
459	#endif
460	}