Subject: Re: newer broadcom chip support
To: Thor Lancelot Simon <firstname.lastname@example.org>
From: Quentin Garnier <email@example.com>
Date: 12/17/2006 19:52:49
Content-Type: text/plain; charset=us-ascii
On Sun, Dec 17, 2006 at 01:15:48PM -0500, Thor Lancelot Simon wrote:
> 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 support=
> > > NetBSD. What is the best approach; porting the bce(4) driver from Fre=
> > > trying to integrate support to our bge(4) ? Has someone already looke=
> > > 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).
I asked the author about TSO, he replied that he didn't think FreeBSD
supported it, so it's not in the driver anyway.
> 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.
The author of the driver was very nice and replied very quickly to my
questions; you'd better ask him directly.
Quentin Garnier - firstname.lastname@example.org - cube@NetBSD.org
"You could have made it, spitting out benchmarks
Owe it to yourself not to fail"
Amplifico, Spitting Out Benchmarks, Hometakes Vol. 2, 2005.
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