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From: Al Boldi <>
To: Alan Cox <>
Subject: Re: Forcing modes in libata (was: SATA buffered read VERY slow)
Date: Sun, 6 Jan 2008 08:03:31 +0300	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

Alan Cox wrote:
> Al Boldi <> wrote:
> > What's hindering the ability to force a mode in libata, as is possible
> > with the normal ide-driver?
> We want it to be correct and race free. That means we have to synchronize
> all the devices on the controller, quiesce them and recompute the speeds
> for each device then turn them all back on and resume command processing.
> It is quite hairy although Tejun's EH work has provided the framework for
> all of this.
> For now you can boot with libata.dma=1 to select DMA on disks but not CD

Great, but why isn't this in the documentation?



  reply	other threads:[~2008-01-06  5:04 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-05 13:41 Al Boldi
2008-01-05 16:30 ` Alan Cox
2008-01-06  5:03   ` Al Boldi [this message]
2008-01-06 13:36     ` Alan Cox
2008-01-06 15:21       ` [PATCH] " FD Cami
     [not found]         ` <>
2008-01-06 18:08           ` FD Cami
2008-01-06 19:09             ` Bartlomiej Zolnierkiewicz
2008-01-10 21:56             ` [PATCH] Re: Forcing modes in libata Jeff Garzik
2008-01-11 22:31               ` FD Cami

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