From: Alan Cox <alan@redhat.com>
To: Mark Lord <liml@rtr.ca>
Cc: Albert Lee <albertcc@tw.ibm.com>,
IDE/ATA development list <linux-ide@vger.kernel.org>,
Jeff Garzik <jgarzik@pobox.com>, Alan Cox <alan@redhat.com>,
Tejun Heo <htejun@gmail.com>
Subject: Re: [PATCH] libata-scsi: automatically use DMADIR if drive/bridge requires it
Date: Mon, 18 Feb 2008 17:20:44 -0500 [thread overview]
Message-ID: <20080218222044.GA20041@devserv.devel.redhat.com> (raw)
In-Reply-To: <47B9F05A.1060207@rtr.ca>
On Mon, Feb 18, 2008 at 03:53:46PM -0500, Mark Lord wrote:
> + /* some SATA bridges need us to indicate data xfer direction
> */
> + if (atapi_dmadir || (dev->id[62] & 0x8000))
The rest of the code uses ata_ inlines/defines in ata.h for things like this
and religiously checks validity bits and ATA versions.
next prev parent reply other threads:[~2008-02-18 22:27 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-18 19:02 atapi_dmadir: why do we not (also) auto-detect it from IDENTIFY PACKET ?? Mark Lord
2008-02-18 20:53 ` [PATCH] libata-scsi: automatically use DMADIR if drive/bridge requires it Mark Lord
2008-02-18 22:20 ` Alan Cox [this message]
2008-02-19 0:41 ` Mark Lord
2008-02-20 17:18 ` Jeff Garzik
2008-02-20 18:53 ` Mark Lord
2008-02-21 4:25 ` [PATCH] libata: " Tejun Heo
2008-02-22 10:09 ` Albert Lee
2008-02-22 13:33 ` Mark Lord
2008-02-22 14:11 ` Mark Lord
2008-02-22 16:32 ` Jeff Garzik
2008-02-24 5:29 ` Jeff Garzik
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