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Date: Wed, 30 Jan 2008 12:00:58 -0500
From: Mark Lord <liml@rtr.ca>
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Subject: Re: DMA mapping on SCSI device?
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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