regex/mlx5: fix type of setup constants

[dpdk.git] / lib / librte_eal / x86 / include / rte_atomic.h

diff --git a/lib/librte_eal/x86/include/rte_atomic.h b/lib/librte_eal/x86/include/rte_atomic.h
index b9dcd30..915afd9 100644 (file)
--- a/lib/librte_eal/x86/include/rte_atomic.h
+++ b/lib/librte_eal/x86/include/rte_atomic.h
@@ -79,9 +79,21 @@ rte_smp_mb(void)
 
 #define rte_io_rmb() rte_compiler_barrier()
 
-#define rte_cio_wmb() rte_compiler_barrier()
-
-#define rte_cio_rmb() rte_compiler_barrier()
+/**
+ * Synchronization fence between threads based on the specified memory order.
+ *
+ * On x86 the __atomic_thread_fence(__ATOMIC_SEQ_CST) generates full 'mfence'
+ * which is quite expensive. The optimized implementation of rte_smp_mb is
+ * used instead.
+ */
+static __rte_always_inline void
+rte_atomic_thread_fence(int memorder)
+{
+       if (memorder == __ATOMIC_SEQ_CST)
+               rte_smp_mb();
+       else
+               __atomic_thread_fence(memorder);
+}
 
 /*------------------------- 16 bit atomic operations -------------------------*/