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{
    "id": 16572,
    "url": "https://patches.dpdk.org/api/patches/16572/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/1476443456-24382-1-git-send-email-hemant.agrawal@nxp.com/",
    "project": {
        "id": 1,
        "url": "https://patches.dpdk.org/api/projects/1/?format=api",
        "name": "DPDK",
        "link_name": "dpdk",
        "list_id": "dev.dpdk.org",
        "list_email": "dev@dpdk.org",
        "web_url": "http://core.dpdk.org",
        "scm_url": "git://dpdk.org/dpdk",
        "webscm_url": "http://git.dpdk.org/dpdk",
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        "list_archive_url_format": "https://inbox.dpdk.org/dev/{}",
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    },
    "msgid": "<1476443456-24382-1-git-send-email-hemant.agrawal@nxp.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1476443456-24382-1-git-send-email-hemant.agrawal@nxp.com",
    "date": "2016-10-14T11:10:56",
    "name": "[dpdk-dev,PATCHv3] examples/l3fwd: em: use hw accelerated crc hash function for arm64",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "5ed01bc00ccd3add08b43e18da4c77de790c07e8",
    "submitter": {
        "id": 477,
        "url": "https://patches.dpdk.org/api/people/477/?format=api",
        "name": "Hemant Agrawal",
        "email": "hemant.agrawal@nxp.com"
    },
    "delegate": null,
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/1476443456-24382-1-git-send-email-hemant.agrawal@nxp.com/mbox/",
    "series": [],
    "comments": "https://patches.dpdk.org/api/patches/16572/comments/",
    "check": "pending",
    "checks": "https://patches.dpdk.org/api/patches/16572/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        ],
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        "From": "Hemant Agrawal <hemant.agrawal@nxp.com>",
        "To": "<dev@dpdk.org>",
        "CC": "<jerin.jacob@caviumnetworks.com>, Hemant Agrawal <hemant.agrawal@nxp.com>",
        "Date": "Fri, 14 Oct 2016 16:40:56 +0530",
        "Message-ID": "<1476443456-24382-1-git-send-email-hemant.agrawal@nxp.com>",
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        "In-Reply-To": "<1476384425-11787-1-git-send-email-hemant.agrawal@nxp.com>",
        "References": "<1476384425-11787-1-git-send-email-hemant.agrawal@nxp.com>",
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        "Subject": "[dpdk-dev] [PATCHv3] examples/l3fwd: em: use hw accelerated crc\n\thash function for arm64",
        "X-BeenThere": "dev@dpdk.org",
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    },
    "content": "if machine level CRC extension are available, offload the\nhash to machine provide functions e.g. armv8-a CRC extensions\nsupport it\n\nSigned-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>\nReviewed-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>\n---\n examples/l3fwd/l3fwd_em.c | 24 ++++++++++++++----------\n 1 file changed, 14 insertions(+), 10 deletions(-)",
    "diff": "diff --git a/examples/l3fwd/l3fwd_em.c b/examples/l3fwd/l3fwd_em.c\nindex 89a68e6..9cc4460 100644\n--- a/examples/l3fwd/l3fwd_em.c\n+++ b/examples/l3fwd/l3fwd_em.c\n@@ -57,13 +57,17 @@\n \n #include \"l3fwd.h\"\n \n-#ifdef RTE_MACHINE_CPUFLAG_SSE4_2\n+#if defined(RTE_MACHINE_CPUFLAG_SSE4_2) || defined(RTE_MACHINE_CPUFLAG_CRC32)\n+#define EM_HASH_CRC 1\n+#endif\n+\n+#ifdef EM_HASH_CRC\n #include <rte_hash_crc.h>\n #define DEFAULT_HASH_FUNC       rte_hash_crc\n #else\n #include <rte_jhash.h>\n #define DEFAULT_HASH_FUNC       rte_jhash\n-#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */\n+#endif\n \n #define IPV6_ADDR_LEN 16\n \n@@ -168,17 +172,17 @@ ipv4_hash_crc(const void *data, __rte_unused uint32_t data_len,\n \tt = k->proto;\n \tp = (const uint32_t *)&k->port_src;\n \n-#ifdef RTE_MACHINE_CPUFLAG_SSE4_2\n+#ifdef EM_HASH_CRC\n \tinit_val = rte_hash_crc_4byte(t, init_val);\n \tinit_val = rte_hash_crc_4byte(k->ip_src, init_val);\n \tinit_val = rte_hash_crc_4byte(k->ip_dst, init_val);\n \tinit_val = rte_hash_crc_4byte(*p, init_val);\n-#else /* RTE_MACHINE_CPUFLAG_SSE4_2 */\n+#else\n \tinit_val = rte_jhash_1word(t, init_val);\n \tinit_val = rte_jhash_1word(k->ip_src, init_val);\n \tinit_val = rte_jhash_1word(k->ip_dst, init_val);\n \tinit_val = rte_jhash_1word(*p, init_val);\n-#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */\n+#endif\n \n \treturn init_val;\n }\n@@ -190,16 +194,16 @@ ipv6_hash_crc(const void *data, __rte_unused uint32_t data_len,\n \tconst union ipv6_5tuple_host *k;\n \tuint32_t t;\n \tconst uint32_t *p;\n-#ifdef RTE_MACHINE_CPUFLAG_SSE4_2\n+#ifdef EM_HASH_CRC\n \tconst uint32_t  *ip_src0, *ip_src1, *ip_src2, *ip_src3;\n \tconst uint32_t  *ip_dst0, *ip_dst1, *ip_dst2, *ip_dst3;\n-#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */\n+#endif\n \n \tk = data;\n \tt = k->proto;\n \tp = (const uint32_t *)&k->port_src;\n \n-#ifdef RTE_MACHINE_CPUFLAG_SSE4_2\n+#ifdef EM_HASH_CRC\n \tip_src0 = (const uint32_t *) k->ip_src;\n \tip_src1 = (const uint32_t *)(k->ip_src+4);\n \tip_src2 = (const uint32_t *)(k->ip_src+8);\n@@ -218,14 +222,14 @@ ipv6_hash_crc(const void *data, __rte_unused uint32_t data_len,\n \tinit_val = rte_hash_crc_4byte(*ip_dst2, init_val);\n \tinit_val = rte_hash_crc_4byte(*ip_dst3, init_val);\n \tinit_val = rte_hash_crc_4byte(*p, init_val);\n-#else /* RTE_MACHINE_CPUFLAG_SSE4_2 */\n+#else\n \tinit_val = rte_jhash_1word(t, init_val);\n \tinit_val = rte_jhash(k->ip_src,\n \t\t\tsizeof(uint8_t) * IPV6_ADDR_LEN, init_val);\n \tinit_val = rte_jhash(k->ip_dst,\n \t\t\tsizeof(uint8_t) * IPV6_ADDR_LEN, init_val);\n \tinit_val = rte_jhash_1word(*p, init_val);\n-#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */\n+#endif\n \treturn init_val;\n }\n \n",
    "prefixes": [
        "dpdk-dev",
        "PATCHv3"
    ]
}