Subject: Re: adaptec 6915 NIC
To: Hal Snyder <>
From: Jason R Thorpe <>
List: netbsd-users
Date: 11/18/2000 18:26:21
On Sat, Nov 18, 2000 at 03:29:52PM -0600, Hal Snyder wrote:

 > It looks as if Adaptec is back to the Starfire ("sf" ?) 6915 chipset
 > in their quad Ethernet PCI cards, after shipping quad cards based on
 > Intel (fxp) and DEC Tulip (de) chips.
 > Is there any work under way to support the 6915 on NetBSD?

I have a driver written, but not debugged, and I don't really have
time to debug it at the moment.  Maybe I should dust it off and
get back to it...

 > Can anyone comment on virtues/drawbacks of this interface?

Well, the chip is very powerful -- it can do different buffer
rings for different packet sizes, does hardware vlan tagging,
priority queueing, checksum offloading, and has a "general
purpose packet processor" onboard, which presumably could be
coaxed into doing crypto processing.

But the downside is that it is a REAL pain to program.  But that's
only annoying for the driver writer (in this case, me), of course.

        -- Jason R. Thorpe <>