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Date:      Fri, 31 Jan 1997 14:18:29 -0800
From:      Julian Elischer <julian@whistle.com>
To:        hackers@freebsd.org
Subject:   Suggested ehternet chips/cards?
Message-ID:  <32F26FB5.167EB0E7@whistle.com>

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We are looking at making or OEMing a dual ethernet card for some
 applications. This should be an ISA card for now..
is there a dual enet ISA card that people have had good experience with.

Bare in mind that PIO as used in the NE2000 device can saturate
an ISA bus with 2 cards leaving Nothing left over for the CPU
or other devices.. (basically the CPU stalls for such a long
time per inw() that two full ethernets ensures that
there are about 0 cycles of CPU left for any other  task.

for this reason I'm especially interested in a card/chipset that
would support DMA (even cheasy PC DMA), or at LEAST use a shared
memeory pool (ISA memory ops are faster than PIO).

This app is unfortunatly STUCK with ISA.
(things will change however :)

Suggestions?

julian



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