From: Harry van Haaren <harry.van.haaren@intel.com>
Date: Thu, 25 Jan 2018 09:46:22 +0000 (+0000)
Subject: event/sw: support dynamic logging
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=510ac6f4f030f9ee23f89c1a39e1d3a548dcb85b

event/sw: support dynamic logging

This commit enables dynamic logging with the SW pmd.
The string "pmd.event.sw" is used to change the verbosity
of the logging output, as per the newly defined log naming.

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
---

diff --git a/config/common_base b/config/common_base
index c560b73da7..751ba43deb 100644
--- a/config/common_base
+++ b/config/common_base
@@ -584,7 +584,6 @@ CONFIG_RTE_LIBRTE_PMD_SKELETON_EVENTDEV_DEBUG=n
 # Compile PMD for software event device
 #
 CONFIG_RTE_LIBRTE_PMD_SW_EVENTDEV=y
-CONFIG_RTE_LIBRTE_PMD_SW_EVENTDEV_DEBUG=n
 
 #
 # Compile PMD for octeontx sso event device
diff --git a/drivers/event/sw/sw_evdev.c b/drivers/event/sw/sw_evdev.c
index f9daf4fcb2..6672fd8e98 100644
--- a/drivers/event/sw/sw_evdev.c
+++ b/drivers/event/sw/sw_evdev.c
@@ -929,3 +929,15 @@ static struct rte_vdev_driver evdev_sw_pmd_drv = {
 RTE_PMD_REGISTER_VDEV(EVENTDEV_NAME_SW_PMD, evdev_sw_pmd_drv);
 RTE_PMD_REGISTER_PARAM_STRING(event_sw, NUMA_NODE_ARG "=<int> "
 		SCHED_QUANTA_ARG "=<int>" CREDIT_QUANTA_ARG "=<int>");
+
+/* declared extern in header, for access from other .c files */
+int eventdev_sw_log_level;
+
+RTE_INIT(evdev_sw_init_log);
+static void
+evdev_sw_init_log(void)
+{
+	eventdev_sw_log_level = rte_log_register("pmd.event.sw");
+	if (eventdev_sw_log_level >= 0)
+		rte_log_set_level(eventdev_sw_log_level, RTE_LOG_NOTICE);
+}
diff --git a/drivers/event/sw/sw_evdev.h b/drivers/event/sw/sw_evdev.h
index d4c534e38a..d90b96d4b7 100644
--- a/drivers/event/sw/sw_evdev.h
+++ b/drivers/event/sw/sw_evdev.h
@@ -5,6 +5,7 @@
 #ifndef _SW_EVDEV_H_
 #define _SW_EVDEV_H_
 
+#include "sw_evdev_log.h"
 #include <rte_eventdev.h>
 #include <rte_eventdev_pmd_vdev.h>
 #include <rte_atomic.h>
@@ -64,26 +65,6 @@ static const uint8_t sw_qe_flag_map[] = {
 		QE_FLAG_VALID | QE_FLAG_COMPLETE | QE_FLAG_NOT_EOP,
 };
 
-#ifdef RTE_LIBRTE_PMD_SW_EVENTDEV_DEBUG
-#define SW_LOG_INFO(fmt, args...) \
-	RTE_LOG(INFO, EVENTDEV, "[%s] %s() line %u: " fmt "\n", \
-			SW_PMD_NAME, \
-			__func__, __LINE__, ## args)
-
-#define SW_LOG_DBG(fmt, args...) \
-	RTE_LOG(DEBUG, EVENTDEV, "[%s] %s() line %u: " fmt "\n", \
-			SW_PMD_NAME, \
-			__func__, __LINE__, ## args)
-#else
-#define SW_LOG_INFO(fmt, args...)
-#define SW_LOG_DBG(fmt, args...)
-#endif
-
-#define SW_LOG_ERR(fmt, args...) \
-	RTE_LOG(ERR, EVENTDEV, "[%s] %s() line %u: " fmt "\n", \
-			SW_PMD_NAME, \
-			__func__, __LINE__, ## args)
-
 /* Records basic event stats at a given point. Used in port and qid structs */
 struct sw_point_stats {
 	uint64_t rx_pkts;
diff --git a/drivers/event/sw/sw_evdev_log.h b/drivers/event/sw/sw_evdev_log.h
new file mode 100644
index 0000000000..f76825abc5
--- /dev/null
+++ b/drivers/event/sw/sw_evdev_log.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+#ifndef _SW_EVDEV_LOG_H_
+#define _SW_EVDEV_LOG_H_
+
+extern int eventdev_sw_log_level;
+
+#define SW_LOG_IMPL(level, fmt, args...) \
+	rte_log(RTE_LOG_ ## level, eventdev_sw_log_level, "%s" fmt "\n", \
+			__func__, ##args)
+
+#define SW_LOG_INFO(fmt, args...) \
+	SW_LOG_IMPL(INFO, fmt, ## args)
+
+#define SW_LOG_DBG(fmt, args...) \
+	SW_LOG_IMPL(DEBUG, fmt, ## args)
+
+#define SW_LOG_ERR(fmt, args...) \
+	SW_LOG_IMPL(ERR, fmt, ## args)
+
+#endif /* _SW_EVDEV_LOG_H_ */