Subject: Re: newer broadcom chip support
To: Quentin Garnier <>
From: Thor Lancelot Simon <>
List: tech-net
Date: 12/17/2006 13:15:48
On Sun, Dec 17, 2006 at 10:48:17AM +0100, Quentin Garnier wrote:
> On Sat, Dec 16, 2006 at 06:46:16PM +0100, Manuel Bouyer wrote:
> > Hi,
> > I have a new server which has a new broadcom chip (5708), not supported by
> > NetBSD. What is the best approach; porting the bce(4) driver from FreeBSD or
> > trying to integrate support to our bge(4) ? Has someone already looked at
> > this ?
> I have a port of OpenBSD's bnx(4) (which is a port of FreeBSD's bce(4)).

I know the OpenBSD manual page says that bnx/bce can do full TCP offload;
I'm not sure I believe that (or that we'd want it if it actually could).

But do you know if it can do header splitting?  The newer Intel cards can,
and using it gives a significant performance boost under Linux by allowing
zero-copy receive to userspace.