Subject: multiport NIC cards with common DMA engines.
To: None <firstname.lastname@example.org>
From: Michael Richardson <email@example.com>
Date: 04/07/2000 13:33:36
We are porting the FreeBSD SysKonnect gigabit ethernet driver to NetBSD.
At present we don't have their dual-port card, but we will be
getting one. The SysKonnect has a single DMA engine on the card and
a pair of Xaqti MACs on it.
I believe the correct behaviour would be us to create an attachment for the
DMA device, create a logical bus behind it, and then attach two devices
behind that. Are there simpler ways? The FreeBSD driver appears to cheat.
:!mcr!: | Solidum Systems Corporation, http://www.solidum.com
Michael Richardson |For a better connected world,where data flows faster<tm>