[dpdk-dev] [PATCH v2] hash: add neon support for thash

[Ashwin Sekhar T K <ashwin.sekhar@caviumnetworks.com>]

Verified the changes with thash_autotest unit test case

Signed-off-by: Ashwin Sekhar T K <ashwin.sekhar@caviumnetworks.com>
---
v2:
* Slightly modified the content of the commit message body
* Added prefix [dpdk-dev] to the email subject line

 lib/librte_hash/rte_thash.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/librte_hash/rte_thash.h b/lib/librte_hash/rte_thash.h
index a4886a8..60d58c6 100644
--- a/lib/librte_hash/rte_thash.h
+++ b/lib/librte_hash/rte_thash.h
@@ -56,7 +56,7 @@ extern "C" {
 #include <rte_ip.h>
 #include <rte_common.h>
 
-#ifdef __SSE3__
+#if defined(__SSE3__) || defined(RTE_MACHINE_CPUFLAG_NEON)
 #include <rte_vect.h>
 #endif
 
@@ -176,6 +176,11 @@ rte_thash_load_v6_addrs(const struct ipv6_hdr *orig, union rte_thash_tuple *targ
 	ipv6 = _mm_loadu_si128((const __m128i *)orig->dst_addr);
 	*(__m128i *)targ->v6.dst_addr =
 			_mm_shuffle_epi8(ipv6, rte_thash_ipv6_bswap_mask);
+#elif defined(RTE_MACHINE_CPUFLAG_NEON)
+	uint8x16_t ipv6 = vld1q_u8((uint8_t const *)orig->src_addr);
+	vst1q_u8((uint8_t *)targ->v6.src_addr, vrev32q_u8(ipv6));
+	ipv6 = vld1q_u8((uint8_t const *)orig->dst_addr);
+	vst1q_u8((uint8_t *)targ->v6.dst_addr, vrev32q_u8(ipv6));
 #else
 	int i;
 	for (i = 0; i < 4; i++) {
-- 
2.7.4