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From: Olivier Matz <olivier.matz@6wind.com>
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bruce.richardson@intel.com, keith.wiles@intel.com
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Subject: [dpdk-dev] [PATCH 4/8] eal: change specific log levels at startup
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Example of use:
./app/test-pmd --log-level='pmd\.i40e.*,8'
This enables debug logs for all dynamic logs whose type starts with
'pmd.i40e'.
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---
lib/librte_eal/bsdapp/eal/eal.c | 4 +--
lib/librte_eal/common/eal_common_options.c | 49 +++++++++++++++++++++++-------
lib/librte_eal/linuxapp/eal/eal.c | 4 +--
3 files changed, 40 insertions(+), 17 deletions(-)
diff --git a/lib/librte_eal/bsdapp/eal/eal.c b/lib/librte_eal/bsdapp/eal/eal.c
index ee7c9de..e945468 100644
--- a/lib/librte_eal/bsdapp/eal/eal.c
+++ b/lib/librte_eal/bsdapp/eal/eal.c
@@ -505,10 +505,8 @@ rte_eal_init(int argc, char **argv)
thread_id = pthread_self();
- eal_log_level_parse(argc, argv);
-
/* set log level as early as possible */
- rte_set_log_level(internal_config.log_level);
+ eal_log_level_parse(argc, argv);
if (rte_eal_cpu_init() < 0)
rte_panic("Cannot detect lcores\n");
diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c
index f36bc55..32df2ef 100644
--- a/lib/librte_eal/common/eal_common_options.c
+++ b/lib/librte_eal/common/eal_common_options.c
@@ -739,25 +739,53 @@ eal_parse_syslog(const char *facility, struct internal_config *conf)
}
static int
-eal_parse_log_level(const char *level, uint32_t *log_level)
+eal_parse_log_level(const char *arg, struct internal_config *conf)
{
- char *end;
+ char *end, *str, *type, *level;
unsigned long tmp;
+ str = strdup(arg);
+ if (str == NULL)
+ return -1;
+
+ if (strchr(str, ',') == NULL) {
+ type = NULL;
+ level = str;
+ } else {
+ type = strsep(&str, ",");
+ level = strsep(&str, ",");
+ }
+
errno = 0;
tmp = strtoul(level, &end, 0);
/* check for errors */
if ((errno != 0) || (level[0] == '\0') ||
- end == NULL || (*end != '\0'))
- return -1;
+ end == NULL || (*end != '\0'))
+ goto fail;
/* log_level is a uint32_t */
if (tmp >= UINT32_MAX)
- return -1;
+ goto fail;
+
+ printf("set log level %s,%lu\n",
+ type, tmp);
+
+ if (type == NULL) {
+ conf->log_level = tmp;
+ rte_log_set_global_level(tmp);
+ } else if (rte_log_set_level_regexp(type, tmp) < 0) {
+ printf("cannot set log level %s,%lu\n",
+ type, tmp);
+ goto fail;
+ }
- *log_level = tmp;
+ free(str);
return 0;
+
+fail:
+ free(str);
+ return -1;
}
static enum rte_proc_type_t
@@ -898,15 +926,12 @@ eal_parse_common_option(int opt, const char *optarg,
break;
case OPT_LOG_LEVEL_NUM: {
- uint32_t log;
-
- if (eal_parse_log_level(optarg, &log) < 0) {
+ if (eal_parse_log_level(optarg, conf) < 0) {
RTE_LOG(ERR, EAL,
"invalid parameters for --"
OPT_LOG_LEVEL "\n");
return -1;
}
- conf->log_level = log;
break;
}
case OPT_LCORES_NUM:
@@ -1057,7 +1082,9 @@ eal_common_usage(void)
" --"OPT_VMWARE_TSC_MAP" Use VMware TSC map instead of native RDTSC\n"
" --"OPT_PROC_TYPE" Type of this process (primary|secondary|auto)\n"
" --"OPT_SYSLOG" Set syslog facility\n"
- " --"OPT_LOG_LEVEL" Set default log level\n"
+ " --"OPT_LOG_LEVEL"=<int> Set global log level\n"
+ " --"OPT_LOG_LEVEL"=<type-regexp>,<int>\n"
+ " Set specific log level\n"
" -v Display version information on startup\n"
" -h, --help This help\n"
"\nEAL options for DEBUG use only:\n"
diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c
index bf6b818..0f61447 100644
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -762,10 +762,8 @@ rte_eal_init(int argc, char **argv)
thread_id = pthread_self();
- eal_log_level_parse(argc, argv);
-
/* set log level as early as possible */
- rte_set_log_level(internal_config.log_level);
+ eal_log_level_parse(argc, argv);
if (rte_eal_cpu_init() < 0)
rte_panic("Cannot detect lcores\n");
--
2.8.1