From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hemant Agrawal Subject: [PATCH] examples/l3fwd: em path hash offload to machine Date: Tue, 23 Aug 2016 20:24:39 +0530 Message-ID: <1471964080-29958-1-git-send-email-hemant.agrawal@nxp.com> Mime-Version: 1.0 Content-Type: text/plain To: Return-path: Received: from NAM03-DM3-obe.outbound.protection.outlook.com (mail-dm3nam03on0084.outbound.protection.outlook.com [104.47.41.84]) by dpdk.org (Postfix) with ESMTP id 28D32137D for ; Tue, 23 Aug 2016 11:20:32 +0200 (CEST) Received: from netperf1.ap.freescale.net ([10.232.134.28]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id u7N9KR4a018569 for ; Tue, 23 Aug 2016 02:20:28 -0700 List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" if machine level CRC extension are available, offload the hash to machine provided functions e.g. armv8-a CRC extensions support it Signed-off-by: Hemant Agrawal --- examples/l3fwd/l3fwd_em.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/examples/l3fwd/l3fwd_em.c b/examples/l3fwd/l3fwd_em.c index def5a02..a889c67 100644 --- a/examples/l3fwd/l3fwd_em.c +++ b/examples/l3fwd/l3fwd_em.c @@ -58,13 +58,13 @@ #include "l3fwd.h" -#ifdef RTE_MACHINE_CPUFLAG_SSE4_2 +#if defined(RTE_MACHINE_CPUFLAG_SSE4_2) || defined(RTE_MACHINE_CPUFLAG_CRC32) #include #define DEFAULT_HASH_FUNC rte_hash_crc #else #include #define DEFAULT_HASH_FUNC rte_jhash -#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */ +#endif #define IPV6_ADDR_LEN 16 @@ -169,17 +169,17 @@ 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 +#if defined(RTE_MACHINE_CPUFLAG_SSE4_2) || defined(RTE_MACHINE_CPUFLAG_CRC32) 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; } @@ -191,16 +191,16 @@ 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 +#if defined(RTE_MACHINE_CPUFLAG_SSE4_2) || defined(RTE_MACHINE_CPUFLAG_CRC32) 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 +#if defined(RTE_MACHINE_CPUFLAG_SSE4_2) || defined(RTE_MACHINE_CPUFLAG_CRC32) 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); @@ -219,14 +219,14 @@ 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; } -- 1.9.1