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From: Wilko Bulte <wilko@yedi.iaf.nl>
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X-Organisation: Private FreeBSD site - Arnhem - The Netherlands
Subject: Re: using DLT drive on FreeBSD
To: joerg_wunsch@uriah.heep.sax.de
Date: Sat, 4 May 1996 19:06:46 +0200 (MET DST)
Cc: freebsd-hackers@freebsd.org
In-Reply-To: <199605040825.KAA21347@uriah.heep.sax.de> from "J Wunsch" at May 4, 96 10:25:08 am
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> > This would imply that non-SG adapters are unusable. Correct me if I'm
> > wrong but something like a Seagate ST-02 (junk, I know, but sea(4)
> > is available) does not do SG.
> 
> ...nor does it do busmaster DMA. :)
> 
> Busmaster DMA controllers are required to support scatter/gather,

Of course..

> that's why some early revision AHA-154X-A's are unusable with FreeBSD
> (but this was a firmware revision problem, mine is working fine in the
> scratchbox).

Now that you mention it: I have 2 of the 1542A in my testbox. There was a
program to check their health mentioned some time ago. Do you have a 
pointer to it? I'd like to check my cards.

(If they prove problematic, I'll start haunting you for a PROM image ;-)

> joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE

_     __________________________________________________________________________
 |   / o / /  _   Wilko Bulte             email: wilko@yedi.iaf.nl
 |/|/ / / /( (_)  Private FreeBSD site  - Arnhem - The Netherlands
--------------------------------------------------------------------------------