Re: [PATCH 1/7] PCI: Make sriov work with hotplug remove

From: Yinghai Lu
Date: Mon Jan 23 2012 - 16:34:52 EST


On Mon, Jan 23, 2012 at 11:44 AM, Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Mon, Jan 23, 2012 at 11:36 AM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
>>
>> Maybe we can put VF and PF in bus->devices like:
>> VF come first than PF?
>
> Ugh. Ok, so that's a disgusting hack, but it's better than messing up
> the generic PCI subsystem. At least it's a disgusting hack in the IOV
> code.

just tested, the patch with this hack works.

>
> I still would prefer to just do the virtual devices right instead. Or
> even just make the removal loop inherently robust, rather than have
> that insane knowledge of virtual function devices that were done so
> horribly wrong.

ok, let me think about it more.

>
> Or even just *keep* the virtual devices on the list even though the
> physical device has been removed - make them independent of the
> physical device.

ah, not sure how this going to work.

Yinghai
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