Re: [PATCH v4 00/10] Add Copy offload support

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On 4/28/22 16:49, Nitesh Shetty wrote:
> On Thu, Apr 28, 2022 at 07:05:32AM +0900, Damien Le Moal wrote:
>> On 4/27/22 21:49, Nitesh Shetty wrote:
>>> O Wed, Apr 27, 2022 at 11:19:48AM +0900, Damien Le Moal wrote:
>>>> On 4/26/22 19:12, Nitesh Shetty wrote:
>>>>> The patch series covers the points discussed in November 2021 virtual call
>>>>> [LSF/MM/BFP TOPIC] Storage: Copy Offload[0].
>>>>> We have covered the Initial agreed requirements in this patchset.
>>>>> Patchset borrows Mikulas's token based approach for 2 bdev
>>>>> implementation.
>>>>>
>>>>> Overall series supports –
>>>>>
>>>>> 1. Driver
>>>>> - NVMe Copy command (single NS), including support in nvme-target (for
>>>>>     block and file backend)
>>>>
>>>> It would also be nice to have copy offload emulation in null_blk for testing.
>>>>
>>>
>>> We can plan this in next phase of copy support, once this series settles down.
>>
>> So how can people test your series ? Not a lot of drives out there with
>> copy support.
>>
> 
> Yeah not many drives at present, Qemu can be used to test NVMe copy.

Upstream QEMU ? What is the command line options ? An example would be
nice. But I still think null_blk support would be easiest.


-- 
Damien Le Moal
Western Digital Research




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