New upstream version 17.08

[deb_dpdk.git] / lib / librte_hash / rte_hash_crc.h

diff --git a/lib/librte_hash/rte_hash_crc.h b/lib/librte_hash/rte_hash_crc.h
index 0f485b8..ea6be52 100644 (file)
--- a/lib/librte_hash/rte_hash_crc.h
+++ b/lib/librte_hash/rte_hash_crc.h
@@ -387,7 +387,7 @@ crc32c_2words(uint64_t data, uint32_t init_val)
        return crc;
 }
 
-#if defined(RTE_ARCH_I686) || defined(RTE_ARCH_X86_64)
+#if defined(RTE_ARCH_X86)
 static inline uint32_t
 crc32c_sse42_u8(uint8_t data, uint32_t init_val)
 {
@@ -453,7 +453,7 @@ crc32c_sse42_u64(uint64_t data, uint64_t init_val)
 
 static uint8_t crc32_alg = CRC32_SW;
 
-#if defined(RTE_ARCH_ARM64)
+#if defined(RTE_ARCH_ARM64) && defined(RTE_MACHINE_CPUFLAG_CRC32)
 #include "rte_crc_arm64.h"
 #else
 
@@ -471,26 +471,12 @@ static uint8_t crc32_alg = CRC32_SW;
 static inline void
 rte_hash_crc_set_alg(uint8_t alg)
 {
-       switch (alg) {
-#if defined(RTE_ARCH_I686) || defined(RTE_ARCH_X86_64)
-       case CRC32_SSE42_x64:
-               if (! rte_cpu_get_flag_enabled(RTE_CPUFLAG_EM64T))
-                       alg = CRC32_SSE42;
-#if __GNUC__ >= 7
-               __attribute__ ((fallthrough));
+#if defined(RTE_ARCH_X86)
+       if (alg == CRC32_SSE42_x64 &&
+                       !rte_cpu_get_flag_enabled(RTE_CPUFLAG_EM64T))
+               alg = CRC32_SSE42;
 #endif
-       case CRC32_SSE42:
-               if (! rte_cpu_get_flag_enabled(RTE_CPUFLAG_SSE4_2))
-                       alg = CRC32_SW;
-#if __GNUC__ >= 7
-               __attribute__ ((fallthrough));
-#endif
-#endif
-       case CRC32_SW:
-               crc32_alg = alg;
-       default:
-               break;
-       }
+       crc32_alg = alg;
 }
 
 /* Setting the best available algorithm */
@@ -515,7 +501,7 @@ rte_hash_crc_init_alg(void)
 static inline uint32_t
 rte_hash_crc_1byte(uint8_t data, uint32_t init_val)
 {
-#if defined RTE_ARCH_I686 || defined RTE_ARCH_X86_64
+#if defined RTE_ARCH_X86
        if (likely(crc32_alg & CRC32_SSE42))
                return crc32c_sse42_u8(data, init_val);
 #endif
@@ -538,7 +524,7 @@ rte_hash_crc_1byte(uint8_t data, uint32_t init_val)
 static inline uint32_t
 rte_hash_crc_2byte(uint16_t data, uint32_t init_val)
 {
-#if defined RTE_ARCH_I686 || defined RTE_ARCH_X86_64
+#if defined RTE_ARCH_X86
        if (likely(crc32_alg & CRC32_SSE42))
                return crc32c_sse42_u16(data, init_val);
 #endif
@@ -561,7 +547,7 @@ rte_hash_crc_2byte(uint16_t data, uint32_t init_val)
 static inline uint32_t
 rte_hash_crc_4byte(uint32_t data, uint32_t init_val)
 {
-#if defined RTE_ARCH_I686 || defined RTE_ARCH_X86_64
+#if defined RTE_ARCH_X86
        if (likely(crc32_alg & CRC32_SSE42))
                return crc32c_sse42_u32(data, init_val);
 #endif
@@ -589,7 +575,7 @@ rte_hash_crc_8byte(uint64_t data, uint32_t init_val)
                return crc32c_sse42_u64(data, init_val);
 #endif
 
-#if defined RTE_ARCH_I686 || defined RTE_ARCH_X86_64
+#if defined RTE_ARCH_X86
        if (likely(crc32_alg & CRC32_SSE42))
                return crc32c_sse42_u64_mimic(data, init_val);
 #endif