From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: Having troubles binding an SR-IOV VF to uio_pci_generic on Amazon instance Date: Thu, 1 Oct 2015 14:32:19 +0300 Message-ID: <560D19C3.4060206@scylladb.com> 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> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: "dev@dpdk.org" To: "Michael S. Tsirkin" 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) In-Reply-To: <20151001142640-mutt-send-email-mst@redhat.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 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?