eal: initialize lcore and socket id

Set _lcore_id and _socket_id to (-1) by default.
For those non EAL thread, _lcore_id shall always be LCORE_ID_ANY.
The libraries using _lcore_id as index need to take care.
_socket_id always be SOCKET_ID_ANY until the thread changes the affinity
by rte_thread_set_affinity().

Signed-off-by: Cunming Liang <cunming.liang@intel.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

diff --git a/lib/librte_eal/bsdapp/eal/eal_thread.c b/lib/librte_eal/bsdapp/eal/eal_thread.c
index e16f685..ca95c72 100644 (file)
--- a/lib/librte_eal/bsdapp/eal/eal_thread.c
+++ b/lib/librte_eal/bsdapp/eal/eal_thread.c
@@ -56,8 +56,8 @@
 #include "eal_private.h"
 #include "eal_thread.h"
 
-RTE_DEFINE_PER_LCORE(unsigned, _lcore_id);
-RTE_DEFINE_PER_LCORE(unsigned, _socket_id);
+RTE_DEFINE_PER_LCORE(unsigned, _lcore_id) = LCORE_ID_ANY;
+RTE_DEFINE_PER_LCORE(unsigned, _socket_id) = (unsigned)SOCKET_ID_ANY;
 RTE_DEFINE_PER_LCORE(rte_cpuset_t, _cpuset);
 
 /*

diff --git a/lib/librte_eal/common/include/rte_lcore.h b/lib/librte_eal/common/include/rte_lcore.h
index 4165b72..e1bd974 100644 (file)
--- a/lib/librte_eal/common/include/rte_lcore.h
+++ b/lib/librte_eal/common/include/rte_lcore.h
@@ -48,7 +48,7 @@
 extern "C" {
 #endif
 
-#define LCORE_ID_ANY -1    /**< Any lcore. */
+#define LCORE_ID_ANY     UINT32_MAX       /**< Any lcore. */
 
 #if defined(__linux__)
        typedef cpu_set_t rte_cpuset_t;
@@ -87,7 +87,7 @@ RTE_DECLARE_PER_LCORE(rte_cpuset_t, _cpuset); /**< Per thread "cpuset". */
 /**
  * Return the ID of the execution unit we are running on.
  * @return
- *  Logical core ID
+ *  Logical core ID(in EAL thread) or LCORE_ID_ANY(in non-EAL thread)
  */
 static inline unsigned
 rte_lcore_id(void)

diff --git a/lib/librte_eal/linuxapp/eal/eal_thread.c b/lib/librte_eal/linuxapp/eal/eal_thread.c
index 57b0515..5635c7d 100644 (file)
--- a/lib/librte_eal/linuxapp/eal/eal_thread.c
+++ b/lib/librte_eal/linuxapp/eal/eal_thread.c
@@ -56,8 +56,8 @@
 #include "eal_private.h"
 #include "eal_thread.h"
 
-RTE_DEFINE_PER_LCORE(unsigned, _lcore_id);
-RTE_DEFINE_PER_LCORE(unsigned, _socket_id);
+RTE_DEFINE_PER_LCORE(unsigned, _lcore_id) = LCORE_ID_ANY;
+RTE_DEFINE_PER_LCORE(unsigned, _socket_id) = (unsigned)SOCKET_ID_ANY;
 RTE_DEFINE_PER_LCORE(rte_cpuset_t, _cpuset);
 
 /*