Re: NetBSD and Xen 2.0

[Manuel Bouyer <bouyer%antioche.lip6.fr@localhost>]

On Tue, Dec 14, 2004 at 03:17:03PM +0000, Christian Limpach wrote:
> > The pseudo ethernet device has an entry in /dev/ for this from userland.
> > Nothing prevent opening his device in kernel and do I/O on it, as does
> > raidframe, ccd, cgd, ...
> 
> If you want to get good performance you need to be able to pass mbufs
> directly to the driver and control the drivers memory allocation for
> received packets.

You mean, to avoid a copy ? Yes, this may be required. But in this case,
it's only a variant of the pseudo ethernet device, which can share some code.
Anyway, it's something I'll have to look at later. First get a dom0 NetBSD
kernel to boot and probe PCI devices :)

--
Manuel Bouyer, LIP6, Universite Paris VI.           
Manuel.Bouyer%lip6.fr@localhost
     NetBSD: 26 ans d'experience feront toujours la difference
--