Date: Wed, 9 Mar 2016 11:08:53 +0100
From: LABBE Corentin <clabbe.montjoie@gmail.com>
To: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>,
        Chen-Yu Tsai <wens@csie.org>, linux-sunxi@googlegroups.com,
        Emilio =?iso-8859-1?Q?L=F3pez?= <emilio@elopez.com.ar>,
        linux-arm-kernel@lists.infradead.org,
        Vinod Koul <vinod.koul@intel.com>,
        Dan Williams <dan.j.williams@intel.com>, dmaengine@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [linux-sunxi] Re: [PATCH] dma: sun4i: expose block size and wait
 cycle configuration to DMA users
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> > 
> > It doesn't really makes sense to us, but it does have a significant
> > impact on the throughput.
> 
> I wouldn't say significant impact, but tweaking those parameters has
> some impact on the performances, and since it's not that complicated to
> implement, I thought it was worth a try, but maybe I'm wrong.
> 

Hello

I am working on adding DMA on the crypto driver sun4i-ss and I confirm that tweaking those parameter can increase speed.

Regards

LABBE Corentin