From owner-freebsd-hackers  Tue Apr 11 21:58: 8 2000
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To: Mike Smith <msmith@freebsd.org>
Subject: Re: PCI DMA Questions 
Cc: freebsd-hackers@freebsd.org
In-reply-to: Your message of "Tue, 11 Apr 2000 21:44:10 PDT."
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References: <200004120444.VAA00544@mass.cdrom.com>  
Date: Tue, 11 Apr 2000 22:57:42 -0600
From: Warner Losh <imp@village.org>
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In message <200004120444.VAA00544@mass.cdrom.com> Mike Smith writes:
: Make sure that the busmaster bit is set in the PCI command register:

Good advice.  However, that wasn't my problem :-(.

: Not to bounce too much, but you may find the examples in the amr and mlx 
: drivers easier to follow (maybe not, too).  I forgot who I stole them 
: from though - probably Jonathan's ida code.  This isn't your problem 
: though.

OK.  I'll take a look.  The ahc driver makes very sophisticated use of 
dma, so maybe I botched something there.

Warner


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