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Re: PCI network cards

daemon@ATHENA.MIT.EDU (nelson@crynwr.com)
Fri Mar 29 11:53:44 1996

Date: 	29 Mar 1996 15:51:12 GMT
From: nelson@crynwr.com
To: Alan Cox <alan@cymru.net>
Cc: I.J.G.M.Janssen@et.tudelft.nl (Ivo Janssen),
        submit-linux-dev-net@ratatosk.yggdrasil.com
In-Reply-To: <199603291421.OAA14742@snowcrash.cymru.net>

Alan Cox writes:
 > > So: it works, but isn't this just a hack. I think I'm better of with a
 > > kernel which supports my PCI-card directly. Now, only some of the more
 > > expensive cards (3COM) are supported.
 > 
 > Probably not. I suspect any cheap PCI ne2000 probably only uses 16bit
 > transfers anyway. You are already getting the benefits of the faster bus.
 > Beyond that only a decent NIC chip will help.

Not to mention the fact that the NE2000 takes a fair amount of CPU
twiddling.  Doesn't matter on DOS or Windows, but a real operating
operating system can sure make use of those cycles.  The bus-mastering
adapters (with DEC 21x4x and AMC PC-Net/PCI enet controllers) seem to
work pretty well.

-russ <nelson@crynwr.com>    http://www.crynwr.com/~nelson
Crynwr Software   | Crynwr Software sells packet driver support | PGP ok
11 Grant St.      | +1 315 268 1925 voice | If you would seek peace, 
Potsdam, NY 13676 | +1 315 268 9201 FAX   | first seek freedom


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