diff mbox

[dpdk-dev,PATCHv3] examples/l3fwd: em: use hw accelerated crc hash function for arm64

Message ID 1476443456-24382-1-git-send-email-hemant.agrawal@nxp.com (mailing list archive)
State Accepted, archived
Headers

Commit Message

Hemant Agrawal Oct. 14, 2016, 11:10 a.m. UTC 
  if machine level CRC extension are available, offload the
hash to machine provide functions e.g. armv8-a CRC extensions
support it

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Reviewed-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
---
 examples/l3fwd/l3fwd_em.c | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

Comments

Thomas Monjalon Oct. 25, 2016, 4:49 p.m. UTC | #1 
2016-10-14 16:40, Hemant Agrawal:
> if machine level CRC extension are available, offload the
> hash to machine provide functions e.g. armv8-a CRC extensions
> support it
> 
> Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
> Reviewed-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>

Applied, thanks
diff mbox

Patch

diff --git a/examples/l3fwd/l3fwd_em.c b/examples/l3fwd/l3fwd_em.c
index 89a68e6..9cc4460 100644
--- a/examples/l3fwd/l3fwd_em.c
+++ b/examples/l3fwd/l3fwd_em.c
@@ -57,13 +57,17 @@ 
 
 #include "l3fwd.h"
 
-#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+#if defined(RTE_MACHINE_CPUFLAG_SSE4_2) || defined(RTE_MACHINE_CPUFLAG_CRC32)
+#define EM_HASH_CRC 1
+#endif
+
+#ifdef EM_HASH_CRC
 #include <rte_hash_crc.h>
 #define DEFAULT_HASH_FUNC       rte_hash_crc
 #else
 #include <rte_jhash.h>
 #define DEFAULT_HASH_FUNC       rte_jhash
-#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+#endif
 
 #define IPV6_ADDR_LEN 16
 
@@ -168,17 +172,17 @@  ipv4_hash_crc(const void *data, __rte_unused uint32_t data_len,
 	t = k->proto;
 	p = (const uint32_t *)&k->port_src;
 
-#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+#ifdef EM_HASH_CRC
 	init_val = rte_hash_crc_4byte(t, init_val);
 	init_val = rte_hash_crc_4byte(k->ip_src, init_val);
 	init_val = rte_hash_crc_4byte(k->ip_dst, init_val);
 	init_val = rte_hash_crc_4byte(*p, init_val);
-#else /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+#else
 	init_val = rte_jhash_1word(t, init_val);
 	init_val = rte_jhash_1word(k->ip_src, init_val);
 	init_val = rte_jhash_1word(k->ip_dst, init_val);
 	init_val = rte_jhash_1word(*p, init_val);
-#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+#endif
 
 	return init_val;
 }
@@ -190,16 +194,16 @@  ipv6_hash_crc(const void *data, __rte_unused uint32_t data_len,
 	const union ipv6_5tuple_host *k;
 	uint32_t t;
 	const uint32_t *p;
-#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+#ifdef EM_HASH_CRC
 	const uint32_t  *ip_src0, *ip_src1, *ip_src2, *ip_src3;
 	const uint32_t  *ip_dst0, *ip_dst1, *ip_dst2, *ip_dst3;
-#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+#endif
 
 	k = data;
 	t = k->proto;
 	p = (const uint32_t *)&k->port_src;
 
-#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+#ifdef EM_HASH_CRC
 	ip_src0 = (const uint32_t *) k->ip_src;
 	ip_src1 = (const uint32_t *)(k->ip_src+4);
 	ip_src2 = (const uint32_t *)(k->ip_src+8);
@@ -218,14 +222,14 @@  ipv6_hash_crc(const void *data, __rte_unused uint32_t data_len,
 	init_val = rte_hash_crc_4byte(*ip_dst2, init_val);
 	init_val = rte_hash_crc_4byte(*ip_dst3, init_val);
 	init_val = rte_hash_crc_4byte(*p, init_val);
-#else /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+#else
 	init_val = rte_jhash_1word(t, init_val);
 	init_val = rte_jhash(k->ip_src,
 			sizeof(uint8_t) * IPV6_ADDR_LEN, init_val);
 	init_val = rte_jhash(k->ip_dst,
 			sizeof(uint8_t) * IPV6_ADDR_LEN, init_val);
 	init_val = rte_jhash_1word(*p, init_val);
-#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+#endif
 	return init_val;
 }