eal: thread affinity API

[dpdk.git] / lib / librte_eal / common / eal_thread.h

diff --git a/lib/librte_eal/common/eal_thread.h b/lib/librte_eal/common/eal_thread.h
index f1ce0bd..e4e76b9 100644 (file)
--- a/lib/librte_eal/common/eal_thread.h
+++ b/lib/librte_eal/common/eal_thread.h
@@ -34,6 +34,8 @@
 #ifndef EAL_THREAD_H
 #define EAL_THREAD_H
 
+#include <rte_lcore.h>
+
 /**
  * basic loop of thread, called for each thread by eal_init().
  *
@@ -61,4 +63,38 @@ void eal_thread_init_master(unsigned lcore_id);
  */
 unsigned eal_cpu_socket_id(unsigned cpu_id);
 
+/**
+ * Get the NUMA socket id from cpuset.
+ * This function is private to EAL.
+ *
+ * @param cpusetp
+ *   The point to a valid cpu set.
+ * @return
+ *   socket_id or SOCKET_ID_ANY
+ */
+int eal_cpuset_socket_id(rte_cpuset_t *cpusetp);
+
+/**
+ * Default buffer size to use with eal_thread_dump_affinity()
+ */
+#define RTE_CPU_AFFINITY_STR_LEN            256
+
+/**
+ * Dump the current pthread cpuset.
+ * This function is private to EAL.
+ *
+ * Note:
+ *   If the dump size is greater than the size of given buffer,
+ *   the string will be truncated and with '\0' at the end.
+ *
+ * @param str
+ *   The string buffer the cpuset will dump to.
+ * @param size
+ *   The string buffer size.
+ * @return
+ *   0 for success, -1 if truncation happens.
+ */
+int
+eal_thread_dump_affinity(char *str, unsigned size);
+
 #endif /* EAL_THREAD_H */