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Date:      Thu, 16 Nov 95 11:02 IST
From:      koshy@blr.novell.com
To:        hackers@freebsd.org
Subject:   IDE drives using DMA?
Message-ID:  <30aacced0.2096@novidc.blr.novell.com>

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Hi,

I chanced upon a book about ATA drives and noted there that IDE can
optionally support DMA transfers in addition to the regular programmed
IO.

Does anyone have any experience with this?  Are such configurations
common?  Any catches or caveats that hinder DMA use with IDE drives?

Thanks,
Koshy



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