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GET /api/patches/17253/?format=api
{ "id": 17253, "url": "http://patches.dpdk.org/api/patches/17253/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/e16f1eb5c324c886b8cce6975fd273f59bff38ad.1479995764.git.nelio.laranjeiro@6wind.com/", "project": { "id": 1, "url": "http://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": "<e16f1eb5c324c886b8cce6975fd273f59bff38ad.1479995764.git.nelio.laranjeiro@6wind.com>", "list_archive_url": "https://inbox.dpdk.org/dev/e16f1eb5c324c886b8cce6975fd273f59bff38ad.1479995764.git.nelio.laranjeiro@6wind.com", "date": "2016-11-24T16:03:35", "name": "[dpdk-dev,6/7] net/mlx5: optimize copy of Ethernet header", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "7fbea755d21068d47645b68878a5ba33c68d8a92", "submitter": { "id": 243, "url": "http://patches.dpdk.org/api/people/243/?format=api", "name": "Nélio Laranjeiro", "email": "nelio.laranjeiro@6wind.com" }, "delegate": { "id": 319, "url": "http://patches.dpdk.org/api/users/319/?format=api", "username": "fyigit", "first_name": "Ferruh", "last_name": "Yigit", "email": "ferruh.yigit@amd.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/e16f1eb5c324c886b8cce6975fd273f59bff38ad.1479995764.git.nelio.laranjeiro@6wind.com/mbox/", "series": [], "comments": "http://patches.dpdk.org/api/patches/17253/comments/", "check": "success", "checks": "http://patches.dpdk.org/api/patches/17253/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 4DB24591F;\n\tThu, 24 Nov 2016 17:04:32 +0100 (CET)", "from mail-wj0-f171.google.com (mail-wj0-f171.google.com\n\t[209.85.210.171]) by dpdk.org (Postfix) with ESMTP id 5319E378E\n\tfor <dev@dpdk.org>; Thu, 24 Nov 2016 17:04:06 +0100 (CET)", "by mail-wj0-f171.google.com with SMTP id mp19so36892911wjc.1\n\tfor <dev@dpdk.org>; Thu, 24 Nov 2016 08:04:06 -0800 (PST)", "from ping.vm.6wind.com (guy78-3-82-239-227-177.fbx.proxad.net.\n\t[82.239.227.177]) by smtp.gmail.com with ESMTPSA id\n\tvr9sm42495142wjc.35.2016.11.24.08.04.05\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128);\n\tThu, 24 Nov 2016 08:04:05 -0800 (PST)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=6wind-com.20150623.gappssmtp.com; s=20150623;\n\th=from:to:cc:subject:date:message-id:in-reply-to:references\n\t:in-reply-to:references;\n\tbh=MwWPKWmfmdZMwP3k/XtXtDBmPvyf5zxymdo5yMFzRGw=;\n\tb=obxXqvtLj/F7eIM6LJ2+hofEWp0BX5TBIIPmeuPkSzj4u7MJTs4Gdm6qpi5nKoVyXi\n\terBayo7hWI+qcfHjrTEnQ1Exkj6MPPZwDBlzb5+CZPbdjjoUT4srZAbKeTED9A0xJwO+\n\tJSDBlNDjsfqb/vvGAMRK4vaClbkYjfLLXCdgmrt0lrdtgx1Gh6KKHRvXgFdL1ETlwKIt\n\tQJPNBtpl4ie5Dn7KvgBblFePiAxCFoX/wtCw1dHqITipWNBwCA5gHabb1SUyO1WYaA2h\n\t1SULiujOhgWYpfg64DzOdrKVjiC3VROjzZsbq60wjOy1OhDNdeGXV5CNcK1L5a7AmzAR\n\tOewQ==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20130820;\n\th=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n\t:references:in-reply-to:references;\n\tbh=MwWPKWmfmdZMwP3k/XtXtDBmPvyf5zxymdo5yMFzRGw=;\n\tb=mqYtVaeNeTZNvXAd+VuWz3iQ/13py4cw2q1+lVtFdpsRIGn4J8vSmb7I6qbxushJ9Z\n\tfMU1cwCqDq5FnA8dp5rqRgXIk9oYIAEbNi2Hi2Mjk9FocZtO77JDlNvY5WHWpSCq3v1f\n\t8Ut81X7suM2C+KS6LMXsLg6jb6DaY8UTG4keY0FRpbiuiMHlsc/PMfGNDlMdWxRM+psZ\n\tfx3jnoY1ARPS+uZdO85T+vblGWt/fiXgVQY7e14evb03vupv0vRS69GgVYvQzjMikzy6\n\tXcVLNDOhxdsVc+pRljFyaEZSvc5LjcTL0RBKZal89Tl58el6GkWfmj4x6FAwe45JBJAs\n\t59Tw==", "X-Gm-Message-State": "AKaTC0092PZs8LvLqOpVQtp/Cu0PrRfJhe5XYMQgnkQAi85aUJWHKpvcYD6iclazk2QO6mBV", "X-Received": "by 10.194.52.42 with SMTP id q10mr2915960wjo.50.1480003446004;\n\tThu, 24 Nov 2016 08:04:06 -0800 (PST)", "From": "Nelio Laranjeiro <nelio.laranjeiro@6wind.com>", "To": "dev@dpdk.org", "Cc": "Thomas Monjalon <thomas.monjalon@6wind.com>,\n\tAdrien Mazarguil <adrien.mazarguil@6wind.com>", "Date": "Thu, 24 Nov 2016 17:03:35 +0100", "Message-Id": "<e16f1eb5c324c886b8cce6975fd273f59bff38ad.1479995764.git.nelio.laranjeiro@6wind.com>", "X-Mailer": "git-send-email 2.1.4", "In-Reply-To": [ "<cover.1479995764.git.nelio.laranjeiro@6wind.com>", "<cover.1479995764.git.nelio.laranjeiro@6wind.com>" ], "References": [ "<cover.1479995764.git.nelio.laranjeiro@6wind.com>", "<cover.1479995764.git.nelio.laranjeiro@6wind.com>" ], "Subject": "[dpdk-dev] [PATCH 6/7] net/mlx5: optimize copy of Ethernet header", "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": "Use fewer instructions to copy the first two bytes of Ethernet headers to\nwork queue elements.\n\nSigned-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>\nAcked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>\n---\n drivers/net/mlx5/mlx5_rxtx.c | 9 ++++-----\n 1 file changed, 4 insertions(+), 5 deletions(-)", "diff": "diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c\nindex 0d0b807..4b8c197 100644\n--- a/drivers/net/mlx5/mlx5_rxtx.c\n+++ b/drivers/net/mlx5/mlx5_rxtx.c\n@@ -409,7 +409,7 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)\n \t\tunsigned int ds = 0;\n \t\tuintptr_t addr;\n \t\tuint16_t pkt_inline_sz = MLX5_WQE_DWORD_SIZE;\n-\t\tuint8_t ehdr[2];\n+\t\tuint16_t ehdr;\n \t\tuint8_t cs_flags = 0;\n #ifdef MLX5_PMD_SOFT_COUNTERS\n \t\tuint32_t total_length = 0;\n@@ -436,8 +436,8 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)\n \t\t\trte_prefetch0(*pkts);\n \t\taddr = rte_pktmbuf_mtod(buf, uintptr_t);\n \t\tlength = DATA_LEN(buf);\n-\t\tehdr[0] = ((uint8_t *)addr)[0];\n-\t\tehdr[1] = ((uint8_t *)addr)[1];\n+\t\tehdr = (((uint8_t *)addr)[1] << 8) |\n+\t\t ((uint8_t *)addr)[0];\n #ifdef MLX5_PMD_SOFT_COUNTERS\n \t\ttotal_length = length;\n #endif\n@@ -600,8 +600,7 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)\n \t\t\t0,\n \t\t\tcs_flags,\n \t\t\t0,\n-\t\t\t(ehdr[1] << 24) | (ehdr[0] << 16) |\n-\t\t\thtons(pkt_inline_sz),\n+\t\t\t(ehdr << 16) | htons(pkt_inline_sz),\n \t\t};\n \t\ttxq->wqe_ci += (ds + 3) / 4;\n #ifdef MLX5_PMD_SOFT_COUNTERS\n", "prefixes": [ "dpdk-dev", "6/7" ] }