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From: David Marchand <david.marchand@6wind.com>
To: dev@dpdk.org
Date: Wed, 17 Sep 2014 15:46:52 +0200
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Subject: [dpdk-dev] [PATCH v3 20/20] eal: set log level from command line
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Add a --log-level option to set the default eal log level.
Signed-off-by: David Marchand <david.marchand@6wind.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
---
lib/librte_eal/bsdapp/eal/eal.c | 42 +++++++++++++++++++
.../bsdapp/eal/include/eal_internal_cfg.h | 1 +
lib/librte_eal/linuxapp/eal/eal.c | 44 +++++++++++++++++++-
.../linuxapp/eal/include/eal_internal_cfg.h | 1 +
4 files changed, 87 insertions(+), 1 deletion(-)
diff --git a/lib/librte_eal/bsdapp/eal/eal.c b/lib/librte_eal/bsdapp/eal/eal.c
index 71f93e0..2f84742 100644
--- a/lib/librte_eal/bsdapp/eal/eal.c
+++ b/lib/librte_eal/bsdapp/eal/eal.c
@@ -94,6 +94,7 @@
#define OPT_PCI_BLACKLIST "pci-blacklist"
#define OPT_VDEV "vdev"
#define OPT_SYSLOG "syslog"
+#define OPT_LOG_LEVEL "log-level"
#define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
@@ -293,6 +294,7 @@ eal_usage(const char *prgname)
" -v : Display version information on startup\n"
" -m MB : memory to allocate\n"
" -r NUM : force number of memory ranks (don't detect)\n"
+ " --"OPT_LOG_LEVEL" : set default log level\n"
" --"OPT_PROC_TYPE" : type of this process\n"
" --"OPT_PCI_BLACKLIST", -b: add a PCI device in black list.\n"
" Prevent EAL from using this PCI device. The argument\n"
@@ -440,6 +442,28 @@ eal_parse_syslog(const char *facility)
return -1;
}
+static int
+eal_parse_log_level(const char *level, uint32_t *log_level)
+{
+ char *end;
+ unsigned long tmp;
+
+ errno = 0;
+ tmp = strtoul(level, &end, 0);
+
+ /* check for errors */
+ if ((errno != 0) || (level[0] == '\0') ||
+ end == NULL || (*end != '\0'))
+ return -1;
+
+ /* log_level is a uint32_t */
+ if (tmp >= UINT32_MAX)
+ return -1;
+
+ *log_level = tmp;
+ return 0;
+}
+
static inline size_t
eal_get_hugepage_mem_size(void)
{
@@ -494,6 +518,7 @@ eal_parse_args(int argc, char **argv)
{OPT_PCI_BLACKLIST, 1, 0, 0},
{OPT_VDEV, 1, 0, 0},
{OPT_SYSLOG, 1, NULL, 0},
+ {OPT_LOG_LEVEL, 1, NULL, 0},
{0, 0, 0, 0}
};
@@ -506,6 +531,8 @@ eal_parse_args(int argc, char **argv)
internal_config.hugepage_dir = NULL;
internal_config.force_sockets = 0;
internal_config.syslog_facility = LOG_DAEMON;
+ /* default value from build option */
+ internal_config.log_level = RTE_LOG_LEVEL;
#ifdef RTE_LIBEAL_USE_HPET
internal_config.no_hpet = 0;
#else
@@ -652,6 +679,18 @@ eal_parse_args(int argc, char **argv)
eal_usage(prgname);
return -1;
}
+ } else if (!strcmp(lgopts[option_index].name,
+ OPT_LOG_LEVEL)) {
+ uint32_t log;
+
+ if (eal_parse_log_level(optarg, &log) < 0) {
+ RTE_LOG(ERR, EAL,
+ "invalid parameters for --"
+ OPT_LOG_LEVEL "\n");
+ eal_usage(prgname);
+ return -1;
+ }
+ internal_config.log_level = log;
}
break;
@@ -793,6 +832,9 @@ rte_eal_init(int argc, char **argv)
if (fctret < 0)
exit(1);
+ /* set log level as early as possible */
+ rte_set_log_level(internal_config.log_level);
+
if (internal_config.no_hugetlbfs == 0 &&
internal_config.process_type != RTE_PROC_SECONDARY &&
eal_hugepage_info_init() < 0)
diff --git a/lib/librte_eal/bsdapp/eal/include/eal_internal_cfg.h b/lib/librte_eal/bsdapp/eal/include/eal_internal_cfg.h
index 2d06c7f..24cefc2 100644
--- a/lib/librte_eal/bsdapp/eal/include/eal_internal_cfg.h
+++ b/lib/librte_eal/bsdapp/eal/include/eal_internal_cfg.h
@@ -75,6 +75,7 @@ struct internal_config {
volatile uint64_t socket_mem[RTE_MAX_NUMA_NODES]; /**< amount of memory per socket */
uintptr_t base_virtaddr; /**< base address to try and reserve memory from */
volatile int syslog_facility; /**< facility passed to openlog() */
+ volatile uint32_t log_level; /**< default log level */
const char *hugefile_prefix; /**< the base filename of hugetlbfs files */
const char *hugepage_dir; /**< specific hugetlbfs directory to use */
diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c
index 4869e7c..38cace6 100644
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -97,6 +97,7 @@
#define OPT_PCI_BLACKLIST "pci-blacklist"
#define OPT_VDEV "vdev"
#define OPT_SYSLOG "syslog"
+#define OPT_LOG_LEVEL "log-level"
#define OPT_BASE_VIRTADDR "base-virtaddr"
#define OPT_XEN_DOM0 "xen-dom0"
#define OPT_CREATE_UIO_DEV "create-uio-dev"
@@ -384,7 +385,8 @@ eal_usage(const char *prgname)
" --"OPT_XEN_DOM0" : support application running on Xen Domain0 "
"without hugetlbfs\n"
" --"OPT_SYSLOG" : set syslog facility\n"
- " --"OPT_SOCKET_MEM" : memory to allocate on specific \n"
+ " --"OPT_LOG_LEVEL" : set default log level\n"
+ " --"OPT_SOCKET_MEM" : memory to allocate on specific\n"
" sockets (use comma separated values)\n"
" --"OPT_HUGE_DIR" : directory where hugetlbfs is mounted\n"
" --"OPT_PROC_TYPE" : type of this process\n"
@@ -548,6 +550,28 @@ eal_parse_syslog(const char *facility)
}
static int
+eal_parse_log_level(const char *level, uint32_t *log_level)
+{
+ char *end;
+ unsigned long tmp;
+
+ errno = 0;
+ tmp = strtoul(level, &end, 0);
+
+ /* check for errors */
+ if ((errno != 0) || (level[0] == '\0') ||
+ end == NULL || (*end != '\0'))
+ return -1;
+
+ /* log_level is a uint32_t */
+ if (tmp >= UINT32_MAX)
+ return -1;
+
+ *log_level = tmp;
+ return 0;
+}
+
+static int
eal_parse_socket_mem(char *socket_mem)
{
char * arg[RTE_MAX_NUMA_NODES];
@@ -699,6 +723,7 @@ eal_parse_args(int argc, char **argv)
{OPT_PCI_BLACKLIST, 1, 0, 0},
{OPT_VDEV, 1, 0, 0},
{OPT_SYSLOG, 1, NULL, 0},
+ {OPT_LOG_LEVEL, 1, NULL, 0},
{OPT_VFIO_INTR, 1, NULL, 0},
{OPT_BASE_VIRTADDR, 1, 0, 0},
{OPT_XEN_DOM0, 0, 0, 0},
@@ -716,6 +741,8 @@ eal_parse_args(int argc, char **argv)
internal_config.hugepage_dir = NULL;
internal_config.force_sockets = 0;
internal_config.syslog_facility = LOG_DAEMON;
+ /* default value from build option */
+ internal_config.log_level = RTE_LOG_LEVEL;
internal_config.xen_dom0_support = 0;
/* if set to NONE, interrupt mode is determined automatically */
internal_config.vfio_intr_mode = RTE_INTR_MODE_NONE;
@@ -887,6 +914,18 @@ eal_parse_args(int argc, char **argv)
eal_usage(prgname);
return -1;
}
+ } else if (!strcmp(lgopts[option_index].name,
+ OPT_LOG_LEVEL)) {
+ uint32_t log;
+
+ if (eal_parse_log_level(optarg, &log) < 0) {
+ RTE_LOG(ERR, EAL,
+ "invalid parameters for --"
+ OPT_LOG_LEVEL "\n");
+ eal_usage(prgname);
+ return -1;
+ }
+ internal_config.log_level = log;
}
else if (!strcmp(lgopts[option_index].name, OPT_BASE_VIRTADDR)) {
if (eal_parse_base_virtaddr(optarg) < 0) {
@@ -1054,6 +1093,9 @@ rte_eal_init(int argc, char **argv)
if (fctret < 0)
exit(1);
+ /* set log level as early as possible */
+ rte_set_log_level(internal_config.log_level);
+
if (internal_config.no_hugetlbfs == 0 &&
internal_config.process_type != RTE_PROC_SECONDARY &&
internal_config.xen_dom0_support == 0 &&
diff --git a/lib/librte_eal/linuxapp/eal/include/eal_internal_cfg.h b/lib/librte_eal/linuxapp/eal/include/eal_internal_cfg.h
index 498ade2..8749390 100644
--- a/lib/librte_eal/linuxapp/eal/include/eal_internal_cfg.h
+++ b/lib/librte_eal/linuxapp/eal/include/eal_internal_cfg.h
@@ -77,6 +77,7 @@ struct internal_config {
volatile uint64_t socket_mem[RTE_MAX_NUMA_NODES]; /**< amount of memory per socket */
uintptr_t base_virtaddr; /**< base address to try and reserve memory from */
volatile int syslog_facility; /**< facility passed to openlog() */
+ volatile uint32_t log_level; /**< default log level */
/** default interrupt mode for VFIO */
volatile enum rte_intr_mode vfio_intr_mode;
const char *hugefile_prefix; /**< the base filename of hugetlbfs files */
--
1.7.10.4