From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Zhao, Yu" Subject: Re: [PATCH 0/13 v7] PCI: Linux kernel SR-IOV support Date: Thu, 18 Dec 2008 10:26:40 +0800 Message-ID: <4949B4E0.2010409@intel.com> References: <20081121183605.GA7810@yzhao12-linux.sh.intel.com> <200812161523.55238.jbarnes@virtuousgeek.org> <20081217141542.GB19967@parisc-linux.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Jesse Barnes , "linux-pci@vger.kernel.org" , "achiang@hp.com" , "bjorn.helgaas@hp.com" , "grundler@parisc-linux.org" , "greg@kroah.com" , "mingo@elte.hu" , "randy.dunlap@oracle.com" , "rdreier@cisco.com" , "horms@verge.net.au" , "yinghai@kernel.org" , "linux-kernel@vger.kernel.org" , "kvm@vger.kernel.org" , "virtualization@lists.linux-foundation.org" To: Matthew Wilcox Return-path: In-Reply-To: <20081217141542.GB19967@parisc-linux.org> Sender: linux-pci-owner@vger.kernel.org List-Id: kvm.vger.kernel.org Matthew Wilcox wrote: > On Tue, Dec 16, 2008 at 03:23:53PM -0800, Jesse Barnes wrote: >> I applied 1-9 to my linux-next branch; and at least patch #10 needs a respin, > > I still object to #2. We should have the flexibility to have 'struct > resource's that are not in this array in the pci_dev. I would like to > see the SR-IOV resources _not_ in this array (and indeed, I'd like to > see PCI bridges keep their producer resources somewhere other than in > this array). I accept that there are still some problems with this, but I understand your concern, and agree that using the array as resource manager is not the best way. But for now it's not possible as you know. We need a better resource manager for PCI subsystem to manage the various resources (traditional, device specific, bus related), which is another independent work from SR-IOV change. > patch #2 moves us further from being able to achieve this goal, not > closer. The array is obvious straightforward and can be easily replaced with a more advanced resource manager in the future. So I don't think we going further from or closer to the goal. Thanks, Yu