From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.3 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3927AC433E0 for ; Tue, 5 Jan 2021 09:32:45 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AC0492222A for ; Tue, 5 Jan 2021 09:32:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AC0492222A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=virtualization-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 32A1B87085; Tue, 5 Jan 2021 09:32:44 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bldOi-FJdfJ5; Tue, 5 Jan 2021 09:32:42 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by hemlock.osuosl.org (Postfix) with ESMTP id 4260C87058; Tue, 5 Jan 2021 09:32:42 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 22F45C0891; Tue, 5 Jan 2021 09:32:42 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 1E24DC013A for ; Tue, 5 Jan 2021 09:32:41 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 121B685C77 for ; Tue, 5 Jan 2021 09:32:41 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id orjw-FSNPIGQ for ; Tue, 5 Jan 2021 09:32:39 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by fraxinus.osuosl.org (Postfix) with ESMTPS id A9BAF85C52 for ; Tue, 5 Jan 2021 09:32:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1609839158; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=KDRR0z0TUONmOgv9BLItAtpsqP3CgvwXGzYeT1dfz/4=; b=bf1xH8KvDnGykQu0C/o3Wa+gXdSmeQFcYlcaHsy7UKFZ3wWKsW8NVIrqmfnthskML+4Pej sNg6DlL6L8H9EUHFg1N580QDdsh8XSGcoNJo/j256T2L1c75hmH+DEvALfiCDZN4WZfbaK sauM4zdsIybNmTvMS1doiw7j+0Sv1JM= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-411-X9SbBh3RMIqosxb8yBjmxw-1; Tue, 05 Jan 2021 04:32:34 -0500 X-MC-Unique: X9SbBh3RMIqosxb8yBjmxw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0CD97801A9E; Tue, 5 Jan 2021 09:32:31 +0000 (UTC) Received: from [10.72.13.192] (ovpn-13-192.pek2.redhat.com [10.72.13.192]) by smtp.corp.redhat.com (Postfix) with ESMTP id EFA7C60873; Tue, 5 Jan 2021 09:32:20 +0000 (UTC) Subject: Re: [PATCH netdev 0/5] virtio-net support xdp socket zero copy xmit To: Xuan Zhuo , netdev@vger.kernel.org References: From: Jason Wang Message-ID: Date: Tue, 5 Jan 2021 17:32:19 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Cc: Song Liu , Martin KaFai Lau , open list , Jesper Dangaard Brouer , Daniel Borkmann , "Michael S. Tsirkin" , Yonghong Song , John Fastabend , Alexei Starovoitov , "open list:VIRTIO CORE AND NET DRIVERS" , Andrii Nakryiko , dust.li@linux.alibaba.com, Jonathan Lemon , KP Singh , Jakub Kicinski , "open list:XDP SOCKETS \(AF_XDP\)" , =?UTF-8?B?QmrDtnJuIFTDtnBlbA==?= , tonylu@linux.alibaba.com, "David S. Miller" , Magnus Karlsson X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" Ck9uIDIwMjEvMS81IOS4i+WNiDU6MTEsIFh1YW4gWmh1byB3cm90ZToKPiBUaGUgZmlyc3QgcGF0 Y2ggbWFkZSBzb21lIGFkanVzdG1lbnRzIHRvIHhzay4KCgpUaGFua3MgYSBsb3QgZm9yIHRoZSB3 b3JrLiBJdCdzIHJhdGhlciBpbnRlcmVzdGluZy4KCgo+Cj4gVGhlIHNlY29uZCBwYXRjaCBpdHNl bGYgY2FuIGJlIHVzZWQgYXMgYW4gaW5kZXBlbmRlbnQgcGF0Y2ggdG8gc29sdmUgdGhlIHByb2Js ZW0KPiB0aGF0IFhEUCBtYXkgZmFpbCB0byBsb2FkIHdoZW4gdGhlIG51bWJlciBvZiBxdWV1ZXMg aXMgaW5zdWZmaWNpZW50LgoKCkl0IHdvdWxkIGJlIGJldHRlciB0byBzZW5kIHRoaXMgYXMgYSBz ZXBhcmF0ZWQgcGF0Y2guIFNldmVyYWwgcGVvcGxlIAphc2tlZCBmb3IgdGhpcyBiZWZvcmUuCgoK Pgo+IFRoZSB0aGlyZCB0byBsYXN0IHBhdGNoIGltcGxlbWVudHMgc3VwcG9ydCBmb3IgeHNrIGlu IHZpcnRpby1uZXQuCj4KPiBBIHByYWN0aWNhbCBwcm9ibGVtIHdpdGggdmlydGlvIGlzIHRoYXQg dHggaW50ZXJydXB0cyBhcmUgbm90IHZlcnkgcmVsaWFibGUuCj4gVGhlcmUgd2lsbCBhbHdheXMg YmUgc29tZSBtaXNzaW5nIG9yIGRlbGF5ZWQgdHggaW50ZXJydXB0cy4gU28gSSBzcGVjaWFsbHkg YWRkZWQKPiBhIHBvaW50IHRpbWVyIHRvIHNvbHZlIHRoaXMgcHJvYmxlbS4gT2YgY291cnNlLCBj b25zaWRlcmluZyBwZXJmb3JtYW5jZSBpc3N1ZXMsCj4gVGhlIHRpbWVyIG9ubHkgdHJpZ2dlcnMg d2hlbiB0aGUgcmluZyBvZiB0aGUgbmV0d29yayBjYXJkIGlzIGZ1bGwuCgoKVGhpcyBpcyBzdWIt b3B0aW1hbC4gV2UgbmVlZCBmaWd1cmUgb3V0IHRoZSByb290IGNhdXNlLiBXZSBkb24ndCBtZWV0 IApzdWNoIGlzc3VlIGJlZm9yZS4KClNldmVyYWwgcXVlc3Rpb25zOgoKLSBpcyB0eCBpbnRlcnJ1 cHQgZW5hYmxlZD8KLSBjYW4geW91IHN0aWxsIHNlZSB0aGUgaXNzdWUgaWYgeW91IGRpc2FibGUg ZXZlbnQgaW5kZXg/Ci0gd2hhdCdzIGJhY2tlbmQgZGlkIHlvdSB1c2U/IHFlbXUgb3Igdmhvc3Qo dXNlcik/CgoKPgo+IFJlZ2FyZGluZyB0aGUgaXNzdWUgb2YgdmlydGlvLW5ldCBzdXBwb3J0aW5n IHhzaydzIHplcm8gY29weSByeCwgSSBhbSBhbHNvCj4gZGV2ZWxvcGluZyBpdCwgYnV0IEkgZm91 bmQgdGhhdCB0aGUgbW9kaWZpY2F0aW9uIG1heSBiZSByZWxhdGl2ZWx5IGxhcmdlLCBzbyBJCj4g Y29uc2lkZXIgdGhpcyBwYXRjaCBzZXQgdG8gYmUgc2VwYXJhdGVkIGZyb20gdGhlIGNvZGUgcmVs YXRlZCB0byB4c2sgemVybyBjb3B5Cj4gcnguCgoKVGhhdCdzIGZpbmUsIGJ1dCBhIHF1ZXN0aW9u IGhlcmUuCgpIb3cgaXMgdGhlIG11bHRpZXVxdWUgYmVpbmcgaGFuZGxlZCBoZXJlLiBJJ20gYXNr aW5nIHNpbmNlIHRoZXJlJ3Mgbm8gCnByb2dyYW1tYWJsZSBmaWx0ZXJzL2RpcmVjdG9ycyBzdXBw b3J0IGluIHZpcnRpbyBzcGVjIG5vdy4KClRoYW5rcwoKCj4KPiBYdWFuIFpodW8gKDUpOgo+ICAg IHhzazogc3VwcG9ydCBnZXQgcGFnZSBmb3IgZHJ2Cj4gICAgdmlydGlvLW5ldDogc3VwcG9ydCBY RFBfVFggd2hlbiBub3QgbW9yZSBxdWV1ZXMKPiAgICB2aXJ0aW8tbmV0LCB4c2s6IGRpc3Rpbmd1 aXNoIFhEUF9UWCBhbmQgWFNLIFhNSVQgY3R4Cj4gICAgeHNrLCB2aXJ0aW8tbmV0OiBwcmVwYXJl IGZvciBzdXBwb3J0IHhzawo+ICAgIHZpcnRpby1uZXQsIHhzazogdmlydGlvLW5ldCBzdXBwb3J0 IHhzayB6ZXJvIGNvcHkgdHgKPgo+ICAgZHJpdmVycy9uZXQvdmlydGlvX25ldC5jICAgIHwgNjQz ICsrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKy0tLS0tCj4gICBpbmNsdWRl L2xpbnV4L25ldGRldmljZS5oICAgfCAgIDEgKwo+ICAgaW5jbHVkZS9uZXQveGRwX3NvY2tfZHJ2 LmggIHwgIDEwICsKPiAgIGluY2x1ZGUvbmV0L3hza19idWZmX3Bvb2wuaCB8ICAgMSArCj4gICBu ZXQveGRwL3hza19idWZmX3Bvb2wuYyAgICAgfCAgMTAgKy0KPiAgIDUgZmlsZXMgY2hhbmdlZCwg NTk3IGluc2VydGlvbnMoKyksIDY4IGRlbGV0aW9ucygtKQo+Cj4gLS0KPiAxLjguMy4xCj4KCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClZpcnR1YWxpemF0 aW9uIG1haWxpbmcgbGlzdApWaXJ0dWFsaXphdGlvbkBsaXN0cy5saW51eC1mb3VuZGF0aW9uLm9y ZwpodHRwczovL2xpc3RzLmxpbnV4Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5mby92aXJ0 dWFsaXphdGlvbg==