--- /dev/null
+/* 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
+}
projects / ceph.git / blobdiff