*BSD News Article 30859


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From: michaelv@iastate.edu (Michael L. VanLoon)
Newsgroups: comp.os.linux.misc,comp.os.linux.development,comp.os.386bsd.development,comp.os.386bsd.questions,comp.sys.ibm.pc.hardware.systems,comp.sys.ibm.pc.hardware.storage,comp.sys.ibm.pc.hardware.misc,comp.periphs.scsi
Subject: Re: BusLogi 445S and DMA Channel (NEW ANSWER)
Date: 27 May 94 02:26:18 GMT
Organization: Iowa State University, Ames, Iowa
Lines: 40
Message-ID: <michaelv.770005578@ponderous.cc.iastate.edu>
References: <2rnjgs$g1l@news-rocq.inria.fr> <2rs5i1$6tl@news-rocq.inria.fr> 	<2rs8go$6tl@news-rocq.inria.fr> <2s2j80$1go@ebh.eb.ele.tue.nl> <JKH.94May27001218@nx.ilo.dec.com>
NNTP-Posting-Host: ponderous.cc.iastate.edu

In <JKH.94May27001218@nx.ilo.dec.com> jkh@nx.ilo.dec.com (Jordan Hubbard) writes:

>In article <2s2j80$1go@ebh.eb.ele.tue.nl> wjw@ebh.eb.ele.tue.nl (Willem Jan Withagen) writes:

>>  Because this starts me wonder which kernel I should use with my 445S REV D
>>  board under FreeBSD. I'm using the AHA kernel which works great for 16Mb
>>  But I'm waiting for the 3.37 Eprom to go to 32MB. Should I use the BT 
>>  kernels for FreeBSD

>You can use the Bt driver *now* for your Rev D board with 16MB - I do

I guess it just escapes me why someone would even *want* to use the
non-BusLogic driver with a BusLogic board, when a BusLogic-specific
driver exists!  The reasoning fails to make its way through my
brain...

You have a BusLogic card -- use the BusLogic driver!  How hard is
that?...

>Whether or not the 3.37
>eprom fixes the >16MB DMA problem is, however, still an open question
>for ANY of the operating systems.  Buslogic claims success with 3.37,
>yet I've now seen more than a few reports that tend to indicate that
>they did NOT fix the problem.

I've also heard that the fault is not with the SCSI controller, but
with the VLB circuitry.  Some VLB slots do bus-mastering rather quite
poorly.  Maybe it's your motherboard that's causing you so much pain.
Have you tried moving it to a different slot?  It may be that you have
one master slot and all the rest are slaves (or maybe no true
mastering slot at all... ack :-P ).

>					Jordan

-- 
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 Michael L. VanLoon                 Iowa State University Computation Center
    michaelv@iastate.edu                    Project Vincent Systems Staff
  Free your mind and your machine -- NetBSD free Un*x for PC/Mac/Amiga/etc.
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