From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f173.google.com (mail-wi0-f173.google.com [209.85.212.173]) by dpdk.org (Postfix) with ESMTP id 87AFC8E5A for ; Thu, 1 Oct 2015 13:32:22 +0200 (CEST) Received: by wicfx3 with SMTP id fx3so23852470wic.0 for ; Thu, 01 Oct 2015 04:32:22 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:cc:from:message-id:date :user-agent:mime-version:in-reply-to:content-type :content-transfer-encoding; bh=JSnffS+8ZxAl9jshs2lc+UGmUSWkcL36hznSeHh0tBA=; b=Lr0t2Ryr4v6HI2JSz3nml9tl+EGzri71IUyGcHQ1rsYdOQVBHHGQno/OSYV6NU6jsS wJV8Luufzd7BenHVSzxyT2qUYwlocPi/Gr9LABYIqsqLVQvVpz07/VjMj0Fy2bEZFZ2Q qL4PNCfs5dv/CvK6XtgJ7kObyUSa/w7Y4qGHtEWCSxt54TvakJwEK1qXoBQaNB8ePKW5 Q/fXOKvZP4kQe8OPc5v0QmbhzK4Z0VEngKj7niuJ3KaRzNy57pEJLjrsxyoCzyPw3kSZ YBV+QBsJYlf4klh1qVRZSpA6g1+fKdqXh0vkfXSwhIRVJUB1L/Z58TfE3wiwDdX11aGe 7Bbg== X-Gm-Message-State: ALoCoQnQkcASKIMqe/Eof3Ke2r9VnLfPwL+DOFNemxs1l0VyD4hfPAs4+JoSbesD7NKDpdP+U0/2 X-Received: by 10.194.249.34 with SMTP id yr2mr9900025wjc.90.1443699142368; Thu, 01 Oct 2015 04:32:22 -0700 (PDT) Received: from avi.cloudius ([37.142.229.250]) by smtp.googlemail.com with ESMTPSA id fx2sm2685618wib.24.2015.10.01.04.32.20 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 01 Oct 2015 04:32:21 -0700 (PDT) To: "Michael S. Tsirkin" References: <20151001113828-mutt-send-email-mst@redhat.com> <560CF44A.60102@scylladb.com> <20151001120027-mutt-send-email-mst@redhat.com> <560CFB66.5050904@scylladb.com> <20151001124211-mutt-send-email-mst@redhat.com> <560D0413.5080401@scylladb.com> <20151001131754-mutt-send-email-mst@redhat.com> <560D0FE2.7010905@scylladb.com> <20151001135054-mutt-send-email-mst@redhat.com> <560D1705.30300@scylladb.com> <20151001142640-mutt-send-email-mst@redhat.com> From: Avi Kivity Message-ID: <560D19C3.4060206@scylladb.com> Date: Thu, 1 Oct 2015 14:32:19 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <20151001142640-mutt-send-email-mst@redhat.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: "dev@dpdk.org" Subject: Re: [dpdk-dev] Having troubles binding an SR-IOV VF to uio_pci_generic on Amazon instance 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, 01 Oct 2015 11:32:22 -0000 On 10/01/2015 02:27 PM, Michael S. Tsirkin wrote: > On Thu, Oct 01, 2015 at 02:20:37PM +0300, Avi Kivity wrote: >> People will just use out of tree drivers (dpdk has several already). It's a >> pain, but nowhere near what you are proposing. > What's the issue with that? Out of tree drivers have to be compiled on the target system (cannot ship a binary package), and occasionally break. dkms helps with that, as do distributions that promise binary compatibility, but it is still a pain, compared to just shipping a userspace package. > We already agreed this kernel > is going to be tainted, and unsupportable. Yes. So your only motivation in rejecting the patch is to get the author to write the ring translation patch and port it to all relevant drivers instead?