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From: Mark Lord <liml@rtr.ca>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: jeff@garzik.org, davej@redhat.com, linux-ide@vger.kernel.org
Subject: Re: [PATCH] libata: Add pata_dma option so users can disable pata_dma as they can with old-ide
Date: Fri, 22 Jun 2007 11:01:09 -0400	[thread overview]
Message-ID: <467BE435.5000001@rtr.ca> (raw)
In-Reply-To: <20070622144939.026ed6ac@the-village.bc.nu>

Alan Cox wrote:
> Allow
> 
> 	libata.pata_dma=0
> 
> to disable DMA (default is 1)
> 
> SATA is unaffected as disabling DMA for SATA makes no sense at all.
> 
> Signed-off-by: Alan Cox <alan@redhat.com>

Alan,

Should we really be piling up like this on global boot/module options
rather than run-time flags on individual channels/devices ?

I can imagine systems with internal notebook drives that want dma=1,
plus Cardbus CF devices that require dma=0.

With a single global flag, how does one do that?

Cheers

  reply	other threads:[~2007-06-22 15:01 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-22 13:49 [PATCH] libata: Add pata_dma option so users can disable pata_dma as they can with old-ide Alan Cox
2007-06-22 15:01 ` Mark Lord [this message]
2007-06-22 15:52   ` Alan Cox
2007-06-22 16:53     ` Mark Lord
2007-06-22 19:04       ` Bartlomiej Zolnierkiewicz
2007-06-22 19:26         ` Alan Cox
2007-06-23 17:41           ` Bartlomiej Zolnierkiewicz

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