[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Wed, 6 Jun 2007 17:34:52 +0100
From: Alan Cox <alan@...rguk.ukuu.org.uk>
To: Jeff Garzik <jeff@...zik.org>
Cc: Tejun Heo <htejun@...il.com>, Mikael Pettersson <mikpe@...uu.se>,
akpm@...ux-foundation.org, david@...eaves.com,
jean.luc.coulon@...il.com, jgarzik@...ox.com,
michal.k.k.piotrowski@...il.com, torvalds@...ux-foundation.org,
linux-kernel@...r.kernel.org
Subject: Re: [REPOST PATCH] sata_promise: use TF interface for polling
NODATA commands
On Wed, 6 Jun 2007 12:05:11 -0400
Jeff Garzik <jeff@...zik.org> wrote:
>
> FYI to all --
>
> As a reminder. the Promise hardware programs registers when it receives
> a SET FEATURES - XFER MODE.
>
> If data transfer is occurring on OTHER ports at the time this is issued,
> then data corruption is guaranteed to occur. Polling will not fix this
> problem -- all ports need to be inactive, when a SET FEATURES - XFER
> MODE command is issued for any port.
Cool - will whoever makes that work drop me a note as I need to do the
same eventually for a couple of other controllers.
-
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/
Powered by blists - more mailing lists