Subject: Re: Acorn SCSI Driver (was RiscBSD Dialup Networking)
To: Mark Brinicombe <amb@physig4.ph.kcl.ac.uk>
From: Mike Pumford <mpumford@mpc-data.co.uk>
List: port-arm32
Date: 12/11/1996 10:36:18
On Tue, 10 Dec 1996, Mark Brinicombe wrote:

> Well there is room for improvement. The Acorn scsi driver does not 
> utilise it's local DMA controller on on board RAM yet. Using this would 
> significantly improve performance. Alternatively the routine that does 
> the xfer from the controller at the moment could probably be seriously 
> improved (Possibly with an assembly version of this routine).

Well I'm not that familiar with ARM assembler but I'm willing to try to 
optimise this routine. I am much more likely to be able to cope with 
adding the DMA support given the right documentation, although the 
learning curve for SCSI drivers looks a bit steep compared to the serial
port code. 

Mike