From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 8B91841E13; Thu, 9 Mar 2023 16:08:40 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 6AAC7427F2; Thu, 9 Mar 2023 16:08:40 +0100 (CET) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by mails.dpdk.org (Postfix) with ESMTP id 3C2AF40ED7 for ; Thu, 9 Mar 2023 16:08:39 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678374518; 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=992uowtsUhZ+EXpXOqsjbOxuO7yGSJOoYpat63sgkhU=; b=OC96fSk84xu2iPU7m5mYvVzsqtxL7bvDY0FEkrAoXMAJoZW+6CMkzNhOCH9MpJsRlRgwi8 OutLZF21or9nadMxTulpRvwNGr/AkSqMLZ4jbkkWtcXi7F2m0KnUbatlIUlykoTAAkNzd+ lZAVzzV66fOwwjj8D3Q71vRuXGLfl2I= Received: from mail-pg1-f198.google.com (mail-pg1-f198.google.com [209.85.215.198]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-260-5WZthXP3N5iUB-VtwLcUKQ-1; Thu, 09 Mar 2023 10:08:37 -0500 X-MC-Unique: 5WZthXP3N5iUB-VtwLcUKQ-1 Received: by mail-pg1-f198.google.com with SMTP id q30-20020a631f5e000000b0050760997f4dso616679pgm.6 for ; Thu, 09 Mar 2023 07:08:37 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678374517; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=992uowtsUhZ+EXpXOqsjbOxuO7yGSJOoYpat63sgkhU=; b=ZiVe5YGzd6jwe7TqEJVfz33CfsNn2Gd5zzPRXzyIj6fRxUu6dfSJjZL9NPKaxjEGAf UU/l2EhLj33qvGaew7PpkG736yCzsGldp10Jmm0CSz581XucdgrcJcqi17l5auO431VP X46a3SNlAeSAXdlPNo6OVnNqLC7adHkRbP4EhV+PioDw2keeV5GW2W2OvFuww2eFfJ/8 SAulqJcTlmXUSEK5zV23CwuddZ4pxA3yX7gmfLS5OPfCrJYQCH1DFViNavpHNKHt6fxk kL1SiEqhXdIJo9VdlyWNlAbpeMckLvHtAQzBd/dHRAMNvbyQHSEOcdlLFmQhKfL9ytRm A/Ng== X-Gm-Message-State: AO0yUKUV834pQ874VcTbKvja8xOkXxHcrxwZHajUBQJ5xGG8/tjaHLbN myo18iEAq56LZLMGa5HwZI4AXXo1Sd4svnYxjVyTNNuAHkgYginbyDZSL9gYMWM6Xo+oPKnbYvR RUHAUS7XfJhMEcP05Zqg= X-Received: by 2002:a62:ce4e:0:b0:606:6380:98da with SMTP id y75-20020a62ce4e000000b00606638098damr9248818pfg.5.1678374516753; Thu, 09 Mar 2023 07:08:36 -0800 (PST) X-Google-Smtp-Source: AK7set/A8Mh/VihDIm4gb78XCAy0HrQ/aNfJzVZJSradZ7mtXaI5bYj1m68cQXswtL51m7/qsF00PSpSTwemtCGis0M= X-Received: by 2002:a62:ce4e:0:b0:606:6380:98da with SMTP id y75-20020a62ce4e000000b00606638098damr9248808pfg.5.1678374516448; Thu, 09 Mar 2023 07:08:36 -0800 (PST) MIME-Version: 1.0 References: <20230309143604.2354288-1-david.marchand@redhat.com> <52cb8334-301e-5014-6598-861a5d0677ef@redhat.com> In-Reply-To: <52cb8334-301e-5014-6598-861a5d0677ef@redhat.com> From: David Marchand Date: Thu, 9 Mar 2023 16:08:25 +0100 Message-ID: Subject: Re: [PATCH] net/virtio: remove address width limit for modern devices To: Maxime Coquelin Cc: dev@dpdk.org, andy.pei@intel.com, Chenbo Xia X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org On Thu, Mar 9, 2023 at 3:59=E2=80=AFPM Maxime Coquelin wrote: > > Hi David, > > On 3/9/23 15:36, David Marchand wrote: > > Modern devices don't have the same limitation as legacy devices, becaus= e > > vring addresses are not configured using a 32-bit register. > > > > Do we want to backport it? This is a bug in my opinion. I wonder, this is the first time we see some report about this issue. I'd like to first get more details from Andy who reported this issue, like in which setup / condition this problem was caught. --=20 David Marchand