From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Lord <liml@rtr.ca>
Subject: Re: DMA mapping on SCSI device?
Date: Wed, 30 Jan 2008 12:00:58 -0500
Message-ID: <47A0AD4A.20109@rtr.ca>
References: <896139.88121.qm@web31812.mail.mud.yahoo.com> <479FDA52.8050204@shaw.ca> <47A0AC33.1060504@rtr.ca>
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To: Robert Hancock <hancockr@shaw.ca>
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Mark Lord wrote:
> ..
> Commands which were not ADMA compatible (eg. MODE_SENSE, 
> TEST_UNIT_READY, ..)
> were simply handled with PIO (in the driver) rather than any form of DMA,
> which is okay because those commands are relatively infrequent.
..

A slight correction there:  TEST_UNIT_READY was fine in ADMA mode as well.

Cheers