Re: [RFC PATCH 3/3] nvme: add the "debug" host driver

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>>> One can instantiate scsi devices with qemu by using fake scsi devices,
>>> but one can also just use scsi_debug to do the same. I see both efforts
>>> as desirable, so long as someone mantains this.
>>>

Why do you think both efforts are desirable ?

NVMe ZNS QEMU implementation proved to be perfect and works just
fine for testing, copy offload is not an exception.

>>> For instance, blktests uses scsi_debug for simplicity.
>>>
>>> In the end you decide what you want to use.
>>
>> Can we use the nvme-loop target instead?
> 
> I am advocating for this approach as well. It presentas a virtual nvme
> controller already.
> 

It does that assuming underlying block device such as null_blk or
QEMU implementation supports required features not to bloat the the
NVMeOF target.

-ck






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