From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f53.google.com (mail-pa0-f53.google.com [209.85.220.53]) by dpdk.org (Postfix) with ESMTP id 1670F8D39 for ; Wed, 9 Dec 2015 22:51:10 +0100 (CET) Received: by pacej9 with SMTP id ej9so36041706pac.2 for ; Wed, 09 Dec 2015 13:51:09 -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=cfrzXQVbQozYC7wao9b+chJSA4yDQDmvTfzfKa24UOs=; b=qg7hpclT0baEModJi3BVWp6Ruc7JAO+hEHUNfXWQXbeL7PgjByASFzaNwcg3NlY5JV 0YCpb1+LmdmUcsC4gMzn1Y//AgpNoN0ziWHLFxKMxxxS/98njn1SiazcKJsa90mF+XpC phL1c76Hn5GdJvgx19PPwKkOrDsDw5clc8EZ1okt6UXiOH+fBsQyFx+J7YWhVZqODy5G ejy7Vqq12QVni7iLge9SD73SAdTmwIJqK003yn+k4MpPz5TqRZ7t8Dfs89Gg0Fi+6TLd 438/WJv4tV5rCPXMfNF5zMpipzkO21ulRkSNp9BVse4LU5JShz0b8ltrUGRxgvnLcM4w DiJw== 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=cfrzXQVbQozYC7wao9b+chJSA4yDQDmvTfzfKa24UOs=; b=GihdL6vlkPFgj+mJhiSHrtNIXddGqrwQJRD9pJaPzmMjDhK7Aj2fRNKotRzWSTmd82 kOUrghSst53FM8lOvSjfowh106yYGlX3nDYS2FlnejXayOHypgYKnhySmch6yzeHS7U3 iBlTgCP0ijsVGmnpodrX1BEl4vM9Ypf8sMl8yP/wpPnCZydhXpKQAq54w0yjM5N7fnhV Flg75JopxV/26p50ISj0uSQwk7FaYgNEh+Sjo49VwfAgZyN9A+fXSNX50mXFgLZPgh/f U+xcx4FsdtAhtDhF8IpZxiqt/eWNyTlYftnEP1R0bJXtlmIfySNjFBD8y1hzYrw9NvNB wAuQ== X-Gm-Message-State: ALoCoQltuqxJr2PcjoV0Hw29ip4ozRaPnrMH5LBbxg6wN2udPYG25JcqqcawS6Bh7LyB+/8G50I6O0UhQcIKCVYYWEotbI/Ieg== X-Received: by 10.66.139.131 with SMTP id qy3mr11485198pab.71.1449697869261; Wed, 09 Dec 2015 13:51:09 -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 fc8sm13974718pab.21.2015.12.09.13.51.08 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 09 Dec 2015 13:51:08 -0800 (PST) Date: Wed, 9 Dec 2015 13:51:18 -0800 From: Stephen Hemminger To: Thomas Monjalon Message-ID: <20151209135118.6d476110@xeon-e3> In-Reply-To: <2562631.e9AmeysRzG@xps13> References: <1449683756-13381-1-git-send-email-stephen@networkplumber.org> <2562631.e9AmeysRzG@xps13> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: dev@dpdk.org, Avi Kivity , Alex Williamson Subject: Re: [dpdk-dev] [PATCH] vfio: support iommu group zero 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: Wed, 09 Dec 2015 21:51:10 -0000 On Wed, 09 Dec 2015 22:12:33 +0100 Thomas Monjalon wrote: > So I guess you have tested the VFIO no-iommu patch. > Is it working well with DPDK with only this patch for group zero? > Have you talked to Alex Williamson? I did test it enough to bring up a link but I needed this patch. The patch fixes an incorrect assumption in original DPDK use of VFIO, it just isn't visible on normal IOMMU hardware. The real goal was to be able to use per-rxq interrupts but didn't get that far along (because of time and other application issues).