RE: [PATCH V2 00/22] mmc: Add Command Queue support

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> -----Original Message-----
> From: linux-mmc-owner@xxxxxxxxxxxxxxx [mailto:linux-mmc-
> owner@xxxxxxxxxxxxxxx] On Behalf Of Linus Walleij
> Sent: Monday, April 24, 2017 4:13 PM
> To: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> Cc: Ulf Hansson <ulf.hansson@xxxxxxxxxx>; linux-mmc <linux-
> mmc@xxxxxxxxxxxxxxx>; Alex Lemberg <alex.lemberg@xxxxxxxxxxx>; Mateusz
> Nowak <mateusz.nowak@xxxxxxxxx>; Yuliy Izrailov
> <Yuliy.Izrailov@xxxxxxxxxxx>; Jaehoon Chung <jh80.chung@xxxxxxxxxxx>;
> Dong Aisheng <dongas86@xxxxxxxxx>; Das Asutosh
> <asutoshd@xxxxxxxxxxxxxx>; Zhangfei Gao <zhangfei.gao@xxxxxxxxx>;
> Dorfman Konstantin <kdorfman@xxxxxxxxxxxxxx>; David Griego
> <david.griego@xxxxxxxxxx>; Sahitya Tummala <stummala@xxxxxxxxxxxxxx>;
> Harjani Ritesh <riteshh@xxxxxxxxxxxxxx>; Venu Byravarasu
> <vbyravarasu@xxxxxxxxxx>; Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
> Subject: Re: [PATCH V2 00/22] mmc: Add Command Queue support
> 
> On Sat, Apr 22, 2017 at 9:45 AM, Adrian Hunter <adrian.hunter@xxxxxxxxx>
> wrote:
> 
> > Ulf and Linus have been doing a great job of keeping this moving, but
> > it would be nice to see some others taking more interest.  The first
> > command queue patches were posted in February 2014, over 3 years ago!
> 
> I agree.
> 
> I think both me & Ulf would also be doing more work if we had easily accessible
> hardware with upstream host controller support for native command queueing.
> (Hm, was just reading in libata about NCQ ...
> déja vu ... https://en.wikipedia.org/wiki/Native_Command_Queuing)
> 
> Do we have some hardware with host-backed command queueing out there
> that is easily obtained and has upstream support for the basic system?
> 

The coming i.MX8 support hardware CMDQ, I will have a try when I get one on May or June.

BR,
Haibo

> Yours,
> Linus Walleij
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