linux-kernel - Re: [PATCH v6 2/2] mmc: jz4740: prepare next dma transfer in parallel with current transfer

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Message-ID: <CAPDyKFrmq83pTCgUu2gR8spAYJPBgTx16JTQ++PKT7-zYjw6jQ@mail.gmail.com>
Date:	Tue, 12 Aug 2014 22:15:35 +0200
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Apelete Seketeli <apelete@...eteli.net>
Cc:	Chris Ball <chris@...ntf.net>,
	H Hartley Sweeten <hsweeten@...ionengravers.com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Wei Yongjun <yongjun_wei@...ndmicro.com.cn>,
	Alex Smith <alex.smith@...tec.com>,
	Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
	linux-mmc <linux-mmc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 2/2] mmc: jz4740: prepare next dma transfer in parallel
 with current transfer

On 12 August 2014 20:10, Apelete Seketeli <apelete@...eteli.net> wrote:
> On Tue, Aug-12-2014 at 06:22:04 PM +0200, Ulf Hansson wrote:
>> On 21 July 2014 06:37, Apelete Seketeli <apelete@...eteli.net> wrote:
>> > Make use of the MMC asynchronous request capability to prepare the
>> > next DMA transfer request in parallel with the current transfer.
>> > This is done by adding pre-request and post-request callbacks that are
>> > used by the MMC framework during an active data transfer.
>> >
>> > It should help reduce the impact of DMA preparation overhead on the SD
>> > card performance.
>> >
>> > Signed-off-by: Apelete Seketeli <apelete@...eteli.net>
>>
>> Thanks! Queued for 3.18.
>
> W00t \o/ <-- hacker joy. Thank you :).
>
> Just out of curiosity, why not pulling these for 3.17 ?

I have had a vacation period. Since these are quite big changes, I
think they deserve some testing in linux-next and did not want to pull
in some late changes for 3.17.

Kind regards
Uffe

>
> Cheers.
> --
>         Apelete
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