Re: [PATCH v5 8/9] xen-pciback: drop SR-IOV VFs when PF driver unloads

From: Jan Beulich
Date: Thu Dec 04 2014 - 06:36:41 EST


>>> On 04.12.14 at 12:07, <david.vrabel@xxxxxxxxxx> wrote:
> On 03/12/14 21:40, Konrad Rzeszutek Wilk wrote:
>> From: Jan Beulich <JBeulich@xxxxxxxx>
>>
>> When a PF driver unloads, it may find it necessary to leave the VFs
>> around simply because of pciback having marked them as assigned to a
>> guest. Utilize a suitable notification to let go of the VFs, thus
>> allowing the PF to go back into the state it was before its driver
>> loaded (which in particular allows the driver to be loaded again with
>> it being able to create the VFs anew, but which also allows to then
>> pass through the PF instead of the VFs).
>>
>> Don't do this however for any VFs currently in active use by a guest.
>>
>> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>> [v2: Removed the switch statement, moved it about]
>> [v3: Redid it a bit differently]
>
> Jan, are you happy with Konrad's change now?

Yes: http://lists.xenproject.org/archives/html/xen-devel/2014-12/msg00267.html

Jan

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