Imported Upstream version 17.05

Change-Id: Id1e419c5a214e4a18739663b91f0f9a549f1fdc6
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

1 files changed, 136 insertions, 45 deletions

diff --git a/lib/librte_eal/common/include/rte_log.h b/lib/librte_eal/common/include/rte_log.h
index 29f7d192..34191385 100644
--- a/lib/librte_eal/common/include/rte_log.h
+++ b/lib/librte_eal/common/include/rte_log.h
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2017 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -50,45 +50,56 @@ extern "C" {
 #include <stdio.h>
 #include <stdarg.h>
 
+#include <rte_common.h>
+
+struct rte_log_dynamic_type;
+
 /** The rte_log structure. */
 struct rte_logs {
 	uint32_t type;  /**< Bitfield with enabled logs. */
 	uint32_t level; /**< Log level. */
 	FILE *file;     /**< Output file set by rte_openlog_stream, or NULL. */
+	size_t dynamic_types_len;
+	struct rte_log_dynamic_type *dynamic_types;
 };
 
 /** Global log informations */
 extern struct rte_logs rte_logs;
 
 /* SDK log type */
-#define RTE_LOGTYPE_EAL     0x00000001 /**< Log related to eal. */
-#define RTE_LOGTYPE_MALLOC  0x00000002 /**< Log related to malloc. */
-#define RTE_LOGTYPE_RING    0x00000004 /**< Log related to ring. */
-#define RTE_LOGTYPE_MEMPOOL 0x00000008 /**< Log related to mempool. */
-#define RTE_LOGTYPE_TIMER   0x00000010 /**< Log related to timers. */
-#define RTE_LOGTYPE_PMD     0x00000020 /**< Log related to poll mode driver. */
-#define RTE_LOGTYPE_HASH    0x00000040 /**< Log related to hash table. */
-#define RTE_LOGTYPE_LPM     0x00000080 /**< Log related to LPM. */
-#define RTE_LOGTYPE_KNI     0x00000100 /**< Log related to KNI. */
-#define RTE_LOGTYPE_ACL     0x00000200 /**< Log related to ACL. */
-#define RTE_LOGTYPE_POWER   0x00000400 /**< Log related to power. */
-#define RTE_LOGTYPE_METER   0x00000800 /**< Log related to QoS meter. */
-#define RTE_LOGTYPE_SCHED   0x00001000 /**< Log related to QoS port scheduler. */
-#define RTE_LOGTYPE_PORT    0x00002000 /**< Log related to port. */
-#define RTE_LOGTYPE_TABLE   0x00004000 /**< Log related to table. */
-#define RTE_LOGTYPE_PIPELINE 0x00008000 /**< Log related to pipeline. */
-#define RTE_LOGTYPE_MBUF    0x00010000 /**< Log related to mbuf. */
-#define RTE_LOGTYPE_CRYPTODEV 0x00020000 /**< Log related to cryptodev. */
+#define RTE_LOGTYPE_EAL        0 /**< Log related to eal. */
+#define RTE_LOGTYPE_MALLOC     1 /**< Log related to malloc. */
+#define RTE_LOGTYPE_RING       2 /**< Log related to ring. */
+#define RTE_LOGTYPE_MEMPOOL    3 /**< Log related to mempool. */
+#define RTE_LOGTYPE_TIMER      4 /**< Log related to timers. */
+#define RTE_LOGTYPE_PMD        5 /**< Log related to poll mode driver. */
+#define RTE_LOGTYPE_HASH       6 /**< Log related to hash table. */
+#define RTE_LOGTYPE_LPM        7 /**< Log related to LPM. */
+#define RTE_LOGTYPE_KNI        8 /**< Log related to KNI. */
+#define RTE_LOGTYPE_ACL        9 /**< Log related to ACL. */
+#define RTE_LOGTYPE_POWER     10 /**< Log related to power. */
+#define RTE_LOGTYPE_METER     11 /**< Log related to QoS meter. */
+#define RTE_LOGTYPE_SCHED     12 /**< Log related to QoS port scheduler. */
+#define RTE_LOGTYPE_PORT      13 /**< Log related to port. */
+#define RTE_LOGTYPE_TABLE     14 /**< Log related to table. */
+#define RTE_LOGTYPE_PIPELINE  15 /**< Log related to pipeline. */
+#define RTE_LOGTYPE_MBUF      16 /**< Log related to mbuf. */
+#define RTE_LOGTYPE_CRYPTODEV 17 /**< Log related to cryptodev. */
+#define RTE_LOGTYPE_EFD       18 /**< Log related to EFD. */
+#define RTE_LOGTYPE_EVENTDEV  19 /**< Log related to eventdev. */
 
 /* these log types can be used in an application */
-#define RTE_LOGTYPE_USER1   0x01000000 /**< User-defined log type 1. */
-#define RTE_LOGTYPE_USER2   0x02000000 /**< User-defined log type 2. */
-#define RTE_LOGTYPE_USER3   0x04000000 /**< User-defined log type 3. */
-#define RTE_LOGTYPE_USER4   0x08000000 /**< User-defined log type 4. */
-#define RTE_LOGTYPE_USER5   0x10000000 /**< User-defined log type 5. */
-#define RTE_LOGTYPE_USER6   0x20000000 /**< User-defined log type 6. */
-#define RTE_LOGTYPE_USER7   0x40000000 /**< User-defined log type 7. */
-#define RTE_LOGTYPE_USER8   0x80000000 /**< User-defined log type 8. */
+#define RTE_LOGTYPE_USER1     24 /**< User-defined log type 1. */
+#define RTE_LOGTYPE_USER2     25 /**< User-defined log type 2. */
+#define RTE_LOGTYPE_USER3     26 /**< User-defined log type 3. */
+#define RTE_LOGTYPE_USER4     27 /**< User-defined log type 4. */
+#define RTE_LOGTYPE_USER5     28 /**< User-defined log type 5. */
+#define RTE_LOGTYPE_USER6     29 /**< User-defined log type 6. */
+#define RTE_LOGTYPE_USER7     30 /**< User-defined log type 7. */
+#define RTE_LOGTYPE_USER8     31 /**< User-defined log type 8. */
+
+/** First identifier for extended logs */
+#define RTE_LOGTYPE_FIRST_EXT_ID 32
 
 /* Can't use 0, as it gives compiler warnings */
 #define RTE_LOG_EMERG    1U  /**< System is unusable.               */
@@ -118,18 +129,32 @@ int rte_openlog_stream(FILE *f);
 /**
  * Set the global log level.
  *
- * After this call, all logs that are lower or equal than level and
- * lower or equal than the RTE_LOG_LEVEL configuration option will be
- * displayed.
+ * After this call, logs with a level lower or equal than the level
+ * passed as argument will be displayed.
  *
  * @param level
  *   Log level. A value between RTE_LOG_EMERG (1) and RTE_LOG_DEBUG (8).
  */
+void rte_log_set_global_level(uint32_t level);
+
+/**
+ * Deprecated, replaced by rte_log_set_global_level().
+ */
+__rte_deprecated
 void rte_set_log_level(uint32_t level);
 
 /**
  * Get the global log level.
+ *
+ * @return
+ *   The current global log level.
+ */
+uint32_t rte_log_get_global_level(void);
+
+/**
+ * Deprecated, replaced by rte_log_get_global_level().
  */
+__rte_deprecated
 uint32_t rte_get_log_level(void);
 
 /**
@@ -140,14 +165,40 @@ uint32_t rte_get_log_level(void);
  * @param enable
  *   True for enable; false for disable.
  */
+__rte_deprecated
 void rte_set_log_type(uint32_t type, int enable);
 
 /**
  * Get the global log type.
  */
+__rte_deprecated
 uint32_t rte_get_log_type(void);
 
 /**
+ * Set the log level for a given type.
+ *
+ * @param pattern
+ *   The regexp identifying the log type.
+ * @param level
+ *   The level to be set.
+ * @return
+ *   0 on success, a negative value if level is invalid.
+ */
+int rte_log_set_level_regexp(const char *pattern, uint32_t level);
+
+/**
+ * Set the log level for a given type.
+ *
+ * @param logtype
+ *   The log type identifier.
+ * @param level
+ *   The level to be set.
+ * @return
+ *   0 on success, a negative value if logtype or level is invalid.
+ */
+int rte_log_set_level(uint32_t logtype, uint32_t level);
+
+/**
  * Get the current loglevel for the message being processed.
  *
  * Before calling the user-defined stream for logging, the log
@@ -176,6 +227,30 @@ int rte_log_cur_msg_loglevel(void);
 int rte_log_cur_msg_logtype(void);
 
 /**
+ * Register a dynamic log type
+ *
+ * If a log is already registered with the same type, the returned value
+ * is the same than the previous one.
+ *
+ * @param name
+ *   The string identifying the log type.
+ * @return
+ *   - >0: success, the returned value is the log type identifier.
+ *   - (-ENONEM): cannot allocate memory.
+ */
+int rte_log_register(const char *name);
+
+/**
+ * Dump log information.
+ *
+ * Dump the global level and the registered log types.
+ *
+ * @param f
+ *   The output stream where the dump should be sent.
+ */
+void rte_log_dump(FILE *f);
+
+/**
  * Generates a log message.
  *
  * The message will be sent in the stream defined by the previous call
@@ -184,9 +259,8 @@ int rte_log_cur_msg_logtype(void);
  * The level argument determines if the log should be displayed or
  * not, depending on the global rte_logs variable.
  *
- * The preferred alternative is the RTE_LOG() function because debug logs may
- * be removed at compilation time if optimization is enabled. Moreover,
- * logs are automatically prefixed by type when using the macro.
+ * The preferred alternative is the RTE_LOG() because it adds the
+ * level and type in the logged string.
  *
  * @param level
  *   Log level. A value between RTE_LOG_EMERG (1) and RTE_LOG_DEBUG (8).
@@ -217,8 +291,8 @@ int rte_log(uint32_t level, uint32_t logtype, const char *format, ...)
  * not, depending on the global rte_logs variable. A trailing
  * newline may be added if needed.
  *
- * The preferred alternative is the RTE_LOG() because debug logs may be
- * removed at compilation time.
+ * The preferred alternative is the RTE_LOG() because it adds the
+ * level and type in the logged string.
  *
  * @param level
  *   Log level. A value between RTE_LOG_EMERG (1) and RTE_LOG_DEBUG (8).
@@ -239,15 +313,8 @@ int rte_vlog(uint32_t level, uint32_t logtype, const char *format, va_list ap)
 /**
  * Generates a log message.
  *
- * The RTE_LOG() is equivalent to rte_log() with two differences:
-
- * - RTE_LOG() can be used to remove debug logs at compilation time,
- *   depending on RTE_LOG_LEVEL configuration option, and compilation
- *   optimization level. If optimization is enabled, the tests
- *   involving constants only are pre-computed. If compilation is done
- *   with -O0, these tests will be done at run time.
- * - The log level and log type names are smaller, for example:
- *   RTE_LOG(INFO, EAL, "this is a %s", "log");
+ * The RTE_LOG() is a helper that prefixes the string with the log level
+ * and type, and call rte_log().
  *
  * @param l
  *   Log level. A value between EMERG (1) and DEBUG (8). The short name is
@@ -263,7 +330,31 @@ int rte_vlog(uint32_t level, uint32_t logtype, const char *format, va_list ap)
  *   - Negative on error.
  */
 #define RTE_LOG(l, t, ...)					\
-	(void)((RTE_LOG_ ## l <= RTE_LOG_LEVEL) ?		\
+	 rte_log(RTE_LOG_ ## l,					\
+		 RTE_LOGTYPE_ ## t, # t ": " __VA_ARGS__)
+
+/**
+ * Generates a log message for data path.
+ *
+ * Similar to RTE_LOG(), except that it is removed at compilation time
+ * if the RTE_LOG_DP_LEVEL configuration option is lower than the log
+ * level argument.
+ *
+ * @param l
+ *   Log level. A value between EMERG (1) and DEBUG (8). The short name is
+ *   expanded by the macro, so it cannot be an integer value.
+ * @param t
+ *   The log type, for example, EAL. The short name is expanded by the
+ *   macro, so it cannot be an integer value.
+ * @param ...
+ *   The fmt string, as in printf(3), followed by the variable arguments
+ *   required by the format.
+ * @return
+ *   - 0: Success.
+ *   - Negative on error.
+ */
+#define RTE_LOG_DP(l, t, ...)					\
+	(void)((RTE_LOG_ ## l <= RTE_LOG_DP_LEVEL) ?		\
 	 rte_log(RTE_LOG_ ## l,					\
 		 RTE_LOGTYPE_ ## t, # t ": " __VA_ARGS__) :	\
 	 0)