Re: [PATCH V7 00/10] mmc: Add Command Queue support

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On 01/09/17 16:28, Adrian Hunter wrote:
> On 01/09/17 15:58, Ulf Hansson wrote:
>> + Christoph
>>
>> On 1 September 2017 at 13:42, Adrian Hunter <adrian.hunter@xxxxxxxxx> wrote:
>>> On 31/08/17 14:56, Adrian Hunter wrote:
>>>> Here is V7 of the hardware command queue patches without the software
>>>> command queue patches, now using blk-mq.
>>>>
>>>> HW CMDQ offers 25% - 50% better random multi-threaded I/O.  I see a slight
>>>> 2% drop in sequential read speed but no change to sequential write.
>>>
>>> Any comments?
>>
>> A couple of overall comments, for now.
>>
>> To make sure we don't overlook something when converting to mq, I
>> would prefer that we first convert the existing mmc block code to mq,
>> then we add CMDQ on top.
> 
> That doesn't make sense.  This patch set is not converting the legacy driver
> to mq therefore it cannot overlook anything for converting to mq.

And then you go silent again.

I can send blk-mq support for legacy requests in a few days if you like, but
I want to hear a better explanation of why you are delaying CQE support.



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