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List:       openbsd-tech
Subject:    Re: fddi cards for Sbus
From:       "Jason L. Wright" <jason () thought ! net>
Date:       2003-02-26 2:50:38
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On Tue, Feb 25, 2003 at 07:11:55PM -0600, Cris Harrison wrote:
> is there anyway to install a fddi driver for Sbus cards??
> There are lots of cards out there...
> 
Almost all of them use the same chipset (national?) and sbus glue logic
(NPI).  The problems are:
	1. no documentation exists for the sbus glue logic and DMA engine
	  (NPI was not cooperative when we last contacted them even though
	  they have EOL'd the product).
	2. even if it did, you'd have to implement the ring control logic
	  in software (these boards are "stupid" fddi controllers unlike
	  the DEC ones which have the ring control protocol in hardware).
Solve #1 and find someone mind warped enough to implement IEEE 802.*
protocols for #2 and you've got yourself a driver.

--Jason L. Wright

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