[PATCH 2/2] NVMe: Implement PCI-e reset notification callback

[Learner Study]

Per the spec, "When an NVM Subsystem Reset occurs, the entire NVM
subsystem is reset"....so all VFs would get impacted, if a VF does a
Reset. So, I think Reset kind of control should be in PF mode only.

On Mon, Apr 21, 2014 at 7:45 PM, Learner <learner.study at gmail.com> wrote:
> But Won't resetting from a VF impact functionality of other VFs?
>
> On Apr 21, 2014, at 6:57 PM, Keith Busch <keith.busch at intel.com> wrote:
>
>> On Mon, 21 Apr 2014, Learner Study wrote:
>>> Hi Keith,
>>>
>>> I think NVMe Reset should apply to PF mode driver only, and not to VF
>>> mode driver.
>>> Is that understanding correct? Does the NVMe driver know which mode
>>> its running in?
>>
>> Oh, this driver doesn't enable SR-IOV and has no PF/VF awareness. Shame
>> on us, I'll add it to my list unless someone beats me to it.
>>
>> Still, I think we'd like to be able to reset a VF if only because it
>> gets the queues back to a pristine state. A VF reset should not affect
>> any of the other functions.