Subject: Re: NE2100 VLB
To: Sergio Prallon <prallon@fis.puc-rio.br>
From: Paul <paul@isl.cf.ac.uk>
List: current-users
Date: 04/27/1994 14:15:14
In reply to Sergio Prallon who said
>
>
> >
> > I have recently purchased a dealer demo version of an NE2100 compatible
> > Vesa Local Bus ethernet card. The problem is, the NE2100 driver in NetBSD
> > requires the use of a DMA channel, while the localbus card does not. Is
> > this as simple as adding code to allow the driver to work without a DMA
> > channel, or does the entire way the driver works have to be rewritten?
> >
> > -- Rob
> May be your card is a VLB bus-master card. In this case it will do VESA DMA
> but will not require any of the ISA DMA channels. If it happens to be true,
> you will need some tech specs of the card to program the card own DMA
> instead of the MB's.
The NE2100 was a bus-master card too. I may be wrong but I've never come
across anything particular to local bus DMA. The driver already uses
bus-mastering DMA.
--
Paul Richards, FreeBSD core team member.
Intelligent Systems Laboratory, ELSYM ,University of Wales, College Cardiff
Internet: paul@isl.cf.ac.uk, JANET(UK): RICHARDSDP@UK.AC.CARDIFF
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