Subject: Re: Speed of Ultra SCSI compared to Ultra DMA?
To: None <>
From: Frank van der Linden <>
List: tech-userlevel
Date: 10/12/1998 10:28:13
> Does an EIDE driver actually need to have specific UDMA support, or is
> the performance gain automatic?

You need explicit UDMA support. Which, incidentally, will be in NetBSD
Real Soon Now (probably this week). I get up to 8Mb/s out of an EIDE
disk, and that's using DMA mode 2, not UDMA, so it could be faster

- Frank