Subject: Re: Network performance
To: Allen Briggs <briggs@wasabisystems.com>
From: Dave Huang <khym@azeotrope.org>
List: port-mac68k
Date: 02/01/2001 11:01:02
On Thu, 1 Feb 2001, Allen Briggs wrote:
> The -current esp driver doesn't understand AV DMA.  What's required
> is someone to reverse-engineer enough of the AV DMA engine to get it
> working.  I don't know what this will take; it might take disassembly
> of the MacOS drivers.  David Huang figured out enough to get the MACE
> ethernet going.

I started looking at the MacOS driver a couple months ago (only for a
couple of hours); hadn't figured out much though, other than that it
works pretty similarly to the Ethernet stuff :)

Anyways, SCSI DMA's been on my to-do list for years (ever since I got
the Ethernet working), but I've just been too busy to really do anything
:( However, if anyone wants to tackle SCSI DMA, I'd be glad to answer
any questions you might have about how the DMA stuff works (not that I
really know either, but I guess I have the general idea :)
-- 
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