eal/armv8: use high-resolution cycle counter

[dpdk.git] / lib / librte_eal / common / include / rte_eal.h

diff --git a/lib/librte_eal/common/include/rte_eal.h b/lib/librte_eal/common/include/rte_eal.h
index b72606b..d150b9d 100644 (file)
--- a/lib/librte_eal/common/include/rte_eal.h
+++ b/lib/librte_eal/common/include/rte_eal.h
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -44,6 +44,7 @@
 #include <sched.h>
 
 #include <rte_per_lcore.h>
+#include <rte_config.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -51,6 +52,9 @@ extern "C" {
 
 #define RTE_MAGIC 19820526 /**< Magic number written by the main partition when ready. */
 
+/* Maximum thread_name length. */
+#define RTE_MAX_THREAD_NAME_LEN 16
+
 /**
  * The lcore role (used in RTE or not).
  */
@@ -83,7 +87,7 @@ struct rte_config {
 
        /**
         * Pointer to memory configuration, which may be shared across multiple
-        * Intel DPDK instances
+        * DPDK instances
         */
        struct rte_mem_config *mem_config;
 } __attribute__((__packed__));
@@ -153,6 +157,24 @@ int rte_eal_iopl_init(void);
  *   - On failure, a negative error value.
  */
 int rte_eal_init(int argc, char **argv);
+
+/**
+ * Check if a primary process is currently alive
+ *
+ * This function returns true when a primary process is currently
+ * active.
+ *
+ * @param config_file_path
+ *   The config_file_path argument provided should point at the location
+ *   that the primary process will create its config file. If NULL, the default
+ *   config file path is used.
+ *
+ * @return
+ *  - If alive, returns 1.
+ *  - If dead, returns 0.
+ */
+int rte_eal_primary_proc_alive(const char *config_file_path);
+
 /**
  * Usage function typedef used by the application usage function.
  *
@@ -171,7 +193,7 @@ typedef void        (*rte_usage_hook_t)(const char * prgname);
  * This routine is optional for the application and will behave as if the set
  * routine was never called as the default behavior.
  *
- * @param func
+ * @param usage_func
  *   The func argument is a function pointer to the application usage routine.
  *   Called function is defined using rte_usage_hook_t typedef, which is of
  *   the form void rte_usage_func(const char * prgname).
@@ -183,7 +205,7 @@ typedef void        (*rte_usage_hook_t)(const char * prgname);
  *     the caller to daisy chain the usage routines if needing more then one.
  */
 rte_usage_hook_t
-rte_set_application_usage_hook( rte_usage_hook_t usage_func );
+rte_set_application_usage_hook(rte_usage_hook_t usage_func);
 
 /**
  * macro to get the lock of tailq in mem_config
@@ -195,64 +217,6 @@ rte_set_application_usage_hook( rte_usage_hook_t usage_func );
  */
 #define RTE_EAL_MEMPOOL_RWLOCK            (&rte_eal_get_configuration()->mem_config->mplock)
 
-
-/**
- * Utility macro to do a thread-safe tailq 'INSERT' of rte_mem_config
- *
- * @param idx
- *   a kind of tailq define in enum rte_tailq_t
- *
- * @param type
- *   type of list(tailq head)
- *
- * @param elm
- *   The element will be added into the list
- *
- */
-#define RTE_EAL_TAILQ_INSERT_TAIL(idx, type, elm) do { \
-       struct type *list;                                      \
-       list = RTE_TAILQ_LOOKUP_BY_IDX(idx, type);              \
-       rte_rwlock_write_lock(RTE_EAL_TAILQ_RWLOCK);            \
-       TAILQ_INSERT_TAIL(list, elm, next);                     \
-       rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK);          \
-} while (0)
-
-/**
- * Utility macro to do a thread-safe tailq 'REMOVE' of rte_mem_config
- *
- * @param idx
- *   a kind of tailq define in enum rte_tailq_t
- *
- * @param type
- *   type of list(tailq head)
- *
- * @param elm
- *   The element will be remove from the list
- *
- */
-#define RTE_EAL_TAILQ_REMOVE(idx, type, elm) do {      \
-       struct type *list;                                      \
-       list = RTE_TAILQ_LOOKUP_BY_IDX(idx, type);              \
-       rte_rwlock_write_lock(RTE_EAL_TAILQ_RWLOCK);            \
-       TAILQ_REMOVE(list, elm, next);                          \
-       rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK);          \
-} while (0)                                                     \
-
-
-/**
- *  macro to check TAILQ exist
- *
- *  @param idx
- *    a kind of tailq define in enum rte_tailq_t
- *
- */
-#define RTE_EAL_TAILQ_EXIST_CHECK(idx) do {   \
-       if (RTE_TAILQ_LOOKUP_BY_IDX(idx, rte_tailq_head) == NULL){      \
-               rte_errno = E_RTE_NO_TAILQ;                             \
-               return NULL;                                            \
-       }                                                               \
-} while(0)
-
 /**
  * Whether EAL is using huge pages (disabled by --no-huge option).
  * The no-huge mode cannot be used with UIO poll-mode drivers like igb/ixgbe.
@@ -289,6 +253,9 @@ static inline int rte_gettid(void)
        return RTE_PER_LCORE(_thread_id);
 }
 
+#define RTE_INIT(func) \
+static void __attribute__((constructor, used)) func(void)
+
 #ifdef __cplusplus
 }
 #endif