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Cassini ethernet driver added
I've recently committed a driver for the Sun Cassini/Cassini+ Ethernet (also
known as National Semiconductor Saturn). This is a port of the OpenBSD
cas(4) driver (which in turn is based on our gem(4) driver).
I've tested with a quad Gigaswift card in a 280R and a single MMF card in
a V120. The driver doesn't currently support any of the hardware features
(checksums, data coalescing, etc.) so everything is done by the main CPU.
Using ttcp, throughput is about 200 - 240 Mb/s using TCP and about 300 -
400 Mb/s using UDP.
I have seen occasional transmit and receive errors when using ttcp with
UDP, but it seems to be fine for normal use (e.g. UDP NFS root).
My other computer also runs NetBSD / Sailing at Newbiggin
http://www.netbsd.org/ / http://www.newbigginsailingclub.org/
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