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GET /api/patches/1356/?format=api
{ "id": 1356, "url": "https://patches.dpdk.org/api/patches/1356/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/44ef6fb19223e71d514f18b406342ddeda09529d.1416459284.git.e_zhumabekov@sts.kz/", "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", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<44ef6fb19223e71d514f18b406342ddeda09529d.1416459284.git.e_zhumabekov@sts.kz>", "list_archive_url": "https://inbox.dpdk.org/dev/44ef6fb19223e71d514f18b406342ddeda09529d.1416459284.git.e_zhumabekov@sts.kz", "date": "2014-11-20T05:16:13", "name": "[dpdk-dev,v5,2/7] hash: add assembly implementation of CRC32 intrinsics", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "b56b4df268cde6f8306369de58ce2fb7c448d040", "submitter": { "id": 36, "url": "https://patches.dpdk.org/api/people/36/?format=api", "name": "Yerden Zhumabekov", "email": "e_zhumabekov@sts.kz" }, "delegate": null, "mbox": "https://patches.dpdk.org/project/dpdk/patch/44ef6fb19223e71d514f18b406342ddeda09529d.1416459284.git.e_zhumabekov@sts.kz/mbox/", "series": [], "comments": "https://patches.dpdk.org/api/patches/1356/comments/", "check": "pending", "checks": "https://patches.dpdk.org/api/patches/1356/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id 1ABC97F40;\n\tThu, 20 Nov 2014 06:06:18 +0100 (CET)", "from mgw.gov.kz (mgw.gov.kz [89.218.88.242])\n\tby dpdk.org (Postfix) with ESMTP id 62F817EB3\n\tfor <dev@dpdk.org>; Thu, 20 Nov 2014 06:06:13 +0100 (CET)", "from mgw.gov.kz (mx.ctsat.kz [178.89.4.95])\n\tby mgw.gov.kz with ESMTP id sAK5GWWZ000371-sAK5GWWb000371\n\t(version=TLSv1.0 cipher=AES128-SHA bits=128 verify=NO);\n\tThu, 20 Nov 2014 11:16:34 +0600", "from EXCASHUB2.rgp.local (192.168.40.53) by EdgeForefront.rgp.local\n\t(192.168.40.59) with Microsoft SMTP Server (TLS) id 14.2.247.3;\n\tThu, 20 Nov 2014 11:16:20 +0600", "from r220.rgp.local (192.168.59.10) by excashub2.rgp.local\n\t(192.168.40.48) with Microsoft SMTP Server (TLS) id 14.2.247.3;\n\tThu, 20 Nov 2014 11:16:31 +0600" ], "From": "Yerden Zhumabekov <e_zhumabekov@sts.kz>", "To": "<dev@dpdk.org>", "Date": "Thu, 20 Nov 2014 11:16:13 +0600", "Message-ID": "<44ef6fb19223e71d514f18b406342ddeda09529d.1416459284.git.e_zhumabekov@sts.kz>", "X-Mailer": "git-send-email 1.7.9.5", "In-Reply-To": "<cover.1416459284.git.e_zhumabekov@sts.kz>", "References": "<1409724351-23786-1-git-send-email-e_zhumabekov@sts.kz>\n\t<cover.1416459284.git.e_zhumabekov@sts.kz>", "MIME-Version": "1.0", "Content-Type": "text/plain", "X-Originating-IP": "[192.168.59.10]", "X-FEAS-SYSTEM-WL": "e_zhumabekov@sts.kz", "Subject": "[dpdk-dev] [PATCH v5 2/7] hash: add assembly implementation of\n\tCRC32 intrinsics", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "patches and discussions about DPDK <dev.dpdk.org>", "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://dpdk.org/ml/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Added:\n- crc32c_sse42_u32() emits 'crc32l' asm instruction;\n- crc32c_sse42_u64() emits 'crc32q' asm instruction;\n- crc32c_sse42_u64_mimic(), wrapper in case of run on 32-bit platform.\n\nSigned-off-by: Yerden Zhumabekov <e_zhumabekov@sts.kz>\n---\n lib/librte_hash/rte_hash_crc.h | 34 ++++++++++++++++++++++++++++++++++\n 1 file changed, 34 insertions(+)", "diff": "diff --git a/lib/librte_hash/rte_hash_crc.h b/lib/librte_hash/rte_hash_crc.h\nindex 4d7532a..9bd0cf6 100644\n--- a/lib/librte_hash/rte_hash_crc.h\n+++ b/lib/librte_hash/rte_hash_crc.h\n@@ -363,6 +363,40 @@ crc32c_2words(uint64_t data, uint32_t init_val)\n \treturn crc;\n }\n \n+static inline uint32_t\n+crc32c_sse42_u32(uint32_t data, uint32_t init_val)\n+{\n+\t__asm__ volatile(\n+\t\t\t\"crc32l %[data], %[init_val];\"\n+\t\t\t: [init_val] \"+r\" (init_val)\n+\t\t\t: [data] \"rm\" (data));\n+\treturn init_val;\n+}\n+\n+static inline uint32_t\n+crc32c_sse42_u64(uint64_t data, uint64_t init_val)\n+{\n+\t__asm__ volatile(\n+\t\t\t\"crc32q %[data], %[init_val];\"\n+\t\t\t: [init_val] \"+r\" (init_val)\n+\t\t\t: [data] \"rm\" (data));\n+\treturn init_val;\n+}\n+\n+static inline uint32_t\n+crc32c_sse42_u64_mimic(uint64_t data, uint64_t init_val)\n+{\n+\tunion {\n+\t\tuint32_t u32[2];\n+\t\tuint64_t u64;\n+\t} d;\n+\n+\td.u64 = data;\n+\tinit_val = crc32c_sse42_u32(d.u32[0], init_val);\n+\tinit_val = crc32c_sse42_u32(d.u32[1], init_val);\n+\treturn init_val;\n+}\n+\n /**\n * Use single crc32 instruction to perform a hash on a 4 byte value.\n *\n", "prefixes": [ "dpdk-dev", "v5", "2/7" ] }