eal/ppc: fix cpu cycle count for little endian

On IBM POWER8 PPC64 little endian architecture, the definition of tsc
union will be different. This patch fix this to enable the right output
from rte_rdtsc().

Signed-off-by: Chao Zhu <chaozhu@linux.vnet.ibm.com>

diff --git a/lib/librte_eal/common/include/arch/ppc_64/rte_cycles.h b/lib/librte_eal/common/include/arch/ppc_64/rte_cycles.h
index fd26e8e7ca03d104c07e700f842af1a5c7a11eb8..e663c4827284adae1b333f6cdf22ab6592f64b96 100644 (file)
--- a/lib/librte_eal/common/include/arch/ppc_64/rte_cycles.h
+++ b/lib/librte_eal/common/include/arch/ppc_64/rte_cycles.h
@@ -51,8 +51,13 @@ rte_rdtsc(void)
        union {
                uint64_t tsc_64;
                struct {
+#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
                        uint32_t hi_32;
                        uint32_t lo_32;
+#else
+                       uint32_t lo_32;
+                       uint32_t hi_32;
+#endif
                };
        } tsc;
        uint32_t tmp;