From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38709) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1br3xG-00029r-AD for qemu-devel@nongnu.org; Mon, 03 Oct 2016 10:10:59 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1br3xB-0001MQ-CV for qemu-devel@nongnu.org; Mon, 03 Oct 2016 10:10:53 -0400 Received: from mail-vk0-x241.google.com ([2607:f8b0:400c:c05::241]:33356) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1br3xB-0001MF-7X for qemu-devel@nongnu.org; Mon, 03 Oct 2016 10:10:49 -0400 Received: by mail-vk0-x241.google.com with SMTP id z126so6335208vkd.0 for ; Mon, 03 Oct 2016 07:10:49 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: <1475035789-685-1-git-send-email-ashish.mittal@veritas.com> <20160930083606.GA5411@stefanha-x1.localdomain> From: Stefan Hajnoczi Date: Mon, 3 Oct 2016 15:10:48 +0100 Message-ID: Content-Type: text/plain; charset=UTF-8 Subject: Re: [Qemu-devel] [PATCH v7 RFC] block/vxhs: Initial commit to add Veritas HyperScale VxHS block device support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: ashish mittal Cc: qemu-devel , Paolo Bonzini , Kevin Wolf , Markus Armbruster , "Daniel P. Berrange" , Jeff Cody , Fam Zheng , Ashish Mittal , Ketan.Nilangekar@veritas.com, Abhijit.Dey@veritas.com On Sat, Oct 1, 2016 at 4:10 AM, ashish mittal wrote: >> If you make these changes then all multi-threading in libqnio and the >> QEMU block driver can be dropped. There will be less code and it will >> be simpler. You'll get a lot of basic tests for free if you add vxhs support to the existing tests/qemu-iotests/ framework. A vxhs server is required so qemu-iotests has something to run against. I saw some server code in libqnio but haven't investigated how complete it is. The main thing is to support read/write/flush. Stefan