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GET /api/patches/84024/?format=api
{ "id": 84024, "url": "http://patches.dpdk.org/api/patches/84024/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20201111154007.13426-1-yong.liu@intel.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": "<20201111154007.13426-1-yong.liu@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20201111154007.13426-1-yong.liu@intel.com", "date": "2020-11-11T15:40:07", "name": "net/virtio: enable packet data prefetch on x86", "commit_ref": null, "pull_url": null, "state": "rejected", "archived": true, "hash": "941e23aa4aef53443772235e3a39a705d301ad80", "submitter": { "id": 17, "url": "http://patches.dpdk.org/api/people/17/?format=api", "name": "Marvin Liu", "email": "yong.liu@intel.com" }, "delegate": { "id": 2642, "url": "http://patches.dpdk.org/api/users/2642/?format=api", "username": "mcoquelin", "first_name": "Maxime", "last_name": "Coquelin", "email": "maxime.coquelin@redhat.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/20201111154007.13426-1-yong.liu@intel.com/mbox/", "series": [ { "id": 13814, "url": "http://patches.dpdk.org/api/series/13814/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=13814", "date": "2020-11-11T15:40:07", "name": "net/virtio: enable packet data prefetch on x86", "version": 1, "mbox": "http://patches.dpdk.org/series/13814/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/84024/comments/", "check": "success", "checks": "http://patches.dpdk.org/api/patches/84024/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from dpdk.org (dpdk.org [92.243.14.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id D9F84A09D9;\n\tWed, 11 Nov 2020 16:40:16 +0100 (CET)", "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id B868156A3;\n\tWed, 11 Nov 2020 16:40:15 +0100 (CET)", "from mga04.intel.com (mga04.intel.com [192.55.52.120])\n by dpdk.org (Postfix) with ESMTP id 2179A58C4\n for <dev@dpdk.org>; Wed, 11 Nov 2020 16:40:13 +0100 (CET)", "from orsmga005.jf.intel.com ([10.7.209.41])\n by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 11 Nov 2020 07:40:11 -0800", "from npg-dpdk-virtual-marvin-dev.sh.intel.com ([10.67.119.56])\n by orsmga005.jf.intel.com with ESMTP; 11 Nov 2020 07:40:10 -0800" ], "IronPort-SDR": [ "\n MBBPu54Lh81uWi5XHnHVpH1IrhcANSDXlwz9beqqit8i5CnTVhSp2yilPiJwMh3CK+q/jDguVM\n 11CkJRxetVQg==", "\n ZRctN9wWuULxg6/b3awha45JCpK97nc7xGXMTYYnYeEk7elfmxBKY6Kj8tXPv4mA7HQZOJOsSd\n +jwa8fb4VnVw==" ], "X-IronPort-AV": [ "E=McAfee;i=\"6000,8403,9801\"; a=\"167579785\"", "E=Sophos;i=\"5.77,469,1596524400\"; d=\"scan'208\";a=\"167579785\"", "E=Sophos;i=\"5.77,469,1596524400\"; d=\"scan'208\";a=\"541847869\"" ], "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "From": "Marvin Liu <yong.liu@intel.com>", "To": "maxime.coquelin@redhat.com,\n\tchenbo.xia@intel.com", "Cc": "dev@dpdk.org,\n\tMarvin Liu <yong.liu@intel.com>", "Date": "Wed, 11 Nov 2020 23:40:07 +0800", "Message-Id": "<20201111154007.13426-1-yong.liu@intel.com>", "X-Mailer": "git-send-email 2.17.1", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "Subject": "[dpdk-dev] [PATCH] net/virtio: enable packet data prefetch on x86", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Data prefetch instruction can preload data into cpu’s hierarchical\ncache before data access. Virtio datapath utilized this feature for\ndata access acceleration. As config RTE_PMD_PACKET_PREFETCH was\ndiscarded, now packet data prefetch is enabled based on architecture.\n\nSigned-off-by: Marvin Liu <yong.liu@intel.com>", "diff": "diff --git a/drivers/net/virtio/virtqueue.h b/drivers/net/virtio/virtqueue.h\nindex 42c4c9882..0196290a5 100644\n--- a/drivers/net/virtio/virtqueue.h\n+++ b/drivers/net/virtio/virtqueue.h\n@@ -106,7 +106,7 @@ virtqueue_store_flags_packed(struct vring_packed_desc *dp,\n \t\tdp->flags = flags;\n \t}\n }\n-#ifdef RTE_PMD_PACKET_PREFETCH\n+#if defined(RTE_ARCH_X86)\n #define rte_packet_prefetch(p) rte_prefetch1(p)\n #else\n #define rte_packet_prefetch(p) do {} while(0)\n", "prefixes": [] }