From: Paul Mackerras <paulus@cs.anu.edu.au>
To: jquinn@nortelnetworks.com
Cc: toa@pop.agri.ch, jquinn@nortelnetworks.com,
linuxppc-dev@lists.linuxppc.org, linux-kernel@vger.rutgers.edu
Subject: Re: MO-Disk on PPC with 53C94 SCSI-chip
Date: Wed, 8 Sep 1999 10:44:37 +1000 [thread overview]
Message-ID: <199909080044.KAA02252@tango.anu.edu.au> (raw)
In-Reply-To: <14293.24696.450823.134283@gargle.gargle.HOWL> (jquinn@nortelnetworks.com)
> Can you tell us what the difference is between this driver and the generic
> 53c94 driver in the same directory? Also, is there a source of docs other
> than the code there (for us SCSI newbies :-)?
I assume you're talking about the mca_53c9x.c driver? I don't think
that existed when I started doing mac53c94.c. I would expect that the
main differences are in the areas of DMA and interrupt handling. The
mca_53c9x driver is probably worth a look. I used the esp.c driver as
a reference as the ESP chip in Suns is apparently a 53c96 and has
marked similarities to the 53c94. There appear to be no fewer than 4
esp drivers there. :-)
I never found a definitive manual or data sheet on the 53c94,
unfortunately. For documentation on the SCSI-2 standard, I have a
late draft that I got by ftp from somewhere. The actual final
standard isn't available on the web as it costs real money. :-(
Paul.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~1999-09-08 0:44 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-08-19 18:08 MO-Disk on PPC with 53C94 SCSI-chip Andreas Tobler
1999-08-20 18:41 ` Sriranga Veeraraghavan
1999-08-23 14:02 ` Jerry Quinn
1999-09-06 11:23 ` Andreas Tobler
1999-09-06 19:31 ` Simon Piette
1999-09-07 0:43 ` Paul Mackerras
1999-09-07 18:59 ` Jerry Quinn
1999-09-08 0:44 ` Paul Mackerras [this message]
1999-09-08 1:13 ` Joshua M. Thompson
-- strict thread matches above, loose matches on Subject: below --
1999-08-19 20:45 Giuliano Pochini
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