linux-kernel - Re: [PATCH 3/3] spi: img-spfi: Increase DMA burst size

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CAL1qeaGEDXeESRaGVQPAt1PkYHax_k1J+1iV215OfMQsqwUUng@mail.gmail.com>
Date:	Mon, 22 Dec 2014 11:22:39 -0800
From:	Andrew Bresticker <abrestic@...omium.org>
To:	Mark Brown <broonie@...nel.org>
Cc:	Sifan Naeem <sifan.naeem@...tec.com>, linux-spi@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] spi: img-spfi: Increase DMA burst size

On Mon, Dec 22, 2014 at 9:54 AM, Mark Brown <broonie@...nel.org> wrote:
>
> On Tue, Dec 16, 2014 at 01:05:46PM -0800, Andrew Bresticker wrote:
>
> > A 1-byte burst size is rather inefficient and has been shown to cause
> > TX issues during testing.  Increase the DMA burst size to 4-bytes for
> > both RX and TX DMA when using the 8-bit FIFO.
>
> This sounds like a fix for transmit issues so should go before patch 2
> (which seems like it is a performance improvement rather than a bug fix)
> but it depends on that patch - can you respin in the opposite order
> please?

Yes, will do.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/