Re: [PATCH RFCv2 01/10] mmc: core: Add support to read command queue parameters

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On 21/11/16 17:34, Linus Walleij wrote:
> On Mon, Jun 27, 2016 at 3:22 PM, Ritesh Harjani <riteshh@xxxxxxxxxxxxxx> wrote:
> 
>> From: Asutosh Das <asutoshd@xxxxxxxxxxxxxx>
>>
>> eMMC cards with EXT_CSD version >= 8, optionally support command
>> queuing feature as defined by JEDEC eMMC5.1. Add support for probing
>> command queue feature for such type of cards.
>>
>> Signed-off-by: Sujit Reddy Thumma <sthumma@xxxxxxxxxxxxxx>
>> Signed-off-by: Asutosh Das <asutoshd@xxxxxxxxxxxxxx>
>> Signed-off-by: Venkat Gopalakrishnan <venkatg@xxxxxxxxxxxxxx>
>> [subhashj@xxxxxxxxxxxxxx: fixed trivial merge conflicts]
>> Signed-off-by: Subhash Jadavani <subhashj@xxxxxxxxxxxxxx>
>> Signed-off-by: Ritesh Harjani <riteshh@xxxxxxxxxxxxxx>
> 
> Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> 
> Even if we don't merge the specific mechanism provided by the
> rest of the patches, this patch just make us know more about
> the capabilities of the hardware we're running on, which is good.

I think SW CMDQ is a better starting point:

	https://marc.info/?l=linux-mmc&m=147729857722285

It cleans up the queue thread a bit:

	https://marc.info/?l=linux-mmc&m=147729857222281&w=2

And introduces queue semantics:

	https://marc.info/?l=linux-mmc&m=147729863322314&w=2

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