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From: Jeff Garzik <jgarzik@pobox.com>
To: Tejun Heo <htejun@gmail.com>
Cc: linux-ide@vger.kernel.org, alan@lxorguk.ukuu.org.uk,
	castet.matthieu@free.fr
Subject: Re: [PATCH] libata: implement ATA_FLAG_SETXFER_POLLING and use it in pata_via, take #2
Date: Tue, 28 Nov 2006 04:00:45 -0500	[thread overview]
Message-ID: <456BFABD.6030600@pobox.com> (raw)
In-Reply-To: <20061116015050.GB2184@htj.dyndns.org>

Tejun Heo wrote:
> This patch implements ATA_FLAG_SETXFER_POLLING and use in pata_via.
> If this flag is set, transfer mode setting performed by polling not by
> interrupt.  This should help those controllers which raise interrupt
> before the command is actually complete on SETXFER.
> 
> Rationale for this approach.
> 
> * uses existing facility and relatively simple
> * no busy sleep in the interrupt handler
> * updating drivers is easy
> 
> While at it, kill now unused flag ATA_FLAG_SRST in pata_via.
> 
> Signed-off-by: Tejun Heo <htejun@gmail.com>

ACK



      reply	other threads:[~2006-11-28  9:00 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-11-16  1:50 [PATCH] libata: implement ATA_FLAG_SETXFER_POLLING and use it in pata_via, take #2 Tejun Heo
2006-11-28  9:00 ` Jeff Garzik [this message]

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