From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f175.google.com (mail-pf0-f175.google.com [209.85.192.175]) by dpdk.org (Postfix) with ESMTP id 52740DE6 for ; Thu, 31 Dec 2015 18:09:28 +0100 (CET) Received: by mail-pf0-f175.google.com with SMTP id 65so113525874pff.3 for ; Thu, 31 Dec 2015 09:09:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-type:content-transfer-encoding; bh=JcTZv/LbL80Fh8iOnipxYUxi4fxIvyasNeEFdbgt70Y=; b=PfOH5ivm1Niusy0pXeV2O7V6Sv1kN9fLFMu38gFS0rO5tzJyLNjJk/ezhSnwtA0Zlu NOiUFwOA/ijCQu0TxQPbHBdHWUqDGLBlhi2ctii9TYvvKQIfSYAKeXXWs6fKC44eVEL3 ZmrpGIWL8sSCyfuxcHUNcDsQoy5dbqz4WNiNgW/+ZZXhOmZwYyRc4cMkPItuYbTi+1tp 8PbWOuyVeulecXlItqEcEowHTlKA6CO9A2rilEP+pYKDRSoAM7vVw/E/LBUG4mWaejVG TamglyuhXbO0z++uF2bpKuTzr090m44jq80EU48SG3VtS2CCcPyV8IoLnMGhC/Hb3p7T MrdA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:mime-version:content-type:content-transfer-encoding; bh=JcTZv/LbL80Fh8iOnipxYUxi4fxIvyasNeEFdbgt70Y=; b=EfrM6mBnjPqgdIFS3BvY/RFUS4LZcC5tUzi+/udaUhwto2OOKC+0DlOkuR5VnGrvMw rm6m5gg3cdC9rhKhlkyDix2JH105m5RS3LyWuGeUjisCoyIu8+Cf2qJS0tDFPUa9sijb caudfPxAkES9MrwW486dRYBVQEuMYKegVWIu7e2qQM8WtFS19Z+PKF/dRA0UXC/7f4YK 5NlTGIMhXv2aF9Q9wbJg+TJEeAcslnQ1x251dMSfXczxUug3e5I9K6628liLwYILhIvf yyqUxV96/bSA/z85BCZkY87B+73e0XhLGYzNojqitFX2oJnXyJOx8mlrJjaLIL2h3XdE pBHg== X-Gm-Message-State: ALoCoQnSPeQ6LDJQ9OLZn9HJ1+DsbggCMP8QLwywDrap17ZJ8KvdX0VeSrNQ/oFGJOcDmQ0XzlC3In0/aaoXTRDHBQwVRdnuDw== X-Received: by 10.98.76.206 with SMTP id e75mr101446006pfj.157.1451581767687; Thu, 31 Dec 2015 09:09:27 -0800 (PST) Received: from xeon-e3 (static-50-53-82-155.bvtn.or.frontiernet.net. [50.53.82.155]) by smtp.gmail.com with ESMTPSA id 2sm54853942pft.5.2015.12.31.09.09.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 31 Dec 2015 09:09:27 -0800 (PST) Date: Thu, 31 Dec 2015 09:09:37 -0800 From: Stephen Hemminger To: HePeng Message-ID: <20151231090937.2ddcd14a@xeon-e3> In-Reply-To: <8D4E95C0-3361-4E31-856C-77A462B2C972@icloud.com> References: <8D4E95C0-3361-4E31-856C-77A462B2C972@icloud.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: dev@dpdk.org Subject: Re: [dpdk-dev] Is there an interrupt mode PMD for virtio X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 31 Dec 2015 17:09:28 -0000 On Tue, 29 Dec 2015 12:51:43 +0800 HePeng wrote: > Hi, > I am asking if there is an interrupt mode PMD for virtio driver. > I check with l3fwd-power code, it is based on VFIO driver. However, > it seems that current virtio driver does not support VFIO. > > Thanks. > HePeng I have a version that was posted once, that works but it required a different version of uio driver that provided MSI support. Since that uio driver required patching the kernel, and the kernel maintainer of UIO didn't want that patch, that work was abandoned. The intention is to use VFIO in no-IOMMU mode instead. Once VFIO with no-IOMMU is working, I will rework the virtio (and vmxnet3) changes to support that. If you want to help or do it your self, I can send the old code.