From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com ([209.132.183.28]:40228 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750910AbbJVMzn (ORCPT ); Thu, 22 Oct 2015 08:55:43 -0400 Date: Thu, 22 Oct 2015 15:55:34 +0300 From: "Michael S. Tsirkin" To: Lan Tianyu Cc: bhelgaas@google.com, carolyn.wyborny@intel.com, donald.c.skidmore@intel.com, eddie.dong@intel.com, nrupal.jani@intel.com, yang.z.zhang@intel.com, agraf@suse.de, kvm@vger.kernel.org, pbonzini@redhat.com, qemu-devel@nongnu.org, emil.s.tantilov@intel.com, intel-wired-lan@lists.osuosl.org, jeffrey.t.kirsher@intel.com, jesse.brandeburg@intel.com, john.ronciak@intel.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, matthew.vick@intel.com, mitch.a.williams@intel.com, netdev@vger.kernel.org, shannon.nelson@intel.com Subject: Re: [Qemu-devel] [RFC Patch 00/12] IXGBE: Add live migration support for SRIOV NIC Message-ID: <20151022155234-mutt-send-email-mst@redhat.com> References: <1445445464-5056-1-git-send-email-tianyu.lan@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1445445464-5056-1-git-send-email-tianyu.lan@intel.com> Sender: linux-pci-owner@vger.kernel.org List-ID: On Thu, Oct 22, 2015 at 12:37:32AM +0800, Lan Tianyu wrote: > This patchset is to propose a new solution to add live migration support for 82599 > SRIOV network card. > > Im our solution, we prefer to put all device specific operation into VF and > PF driver and make code in the Qemu more general. Adding code to VF driver makes sense. However, adding code to PF driver is problematic: PF and VF run within different environments, you can't assume PF and VF drivers are the same version. I guess that would be acceptable if these messages make it into the official intel spec, along with hardware registers. -- MST