[pve-devel] IFF_VNET_HDR ioctl on tap device

[Dietmar Maurer]

AFAIK Libvirt always pass a file descriptor, so they need that hack.

> -----Original Message-----
> From: Alexandre DERUMIER [mailto:aderumier at odiso.com]
> Sent: Dienstag, 17. April 2012 12:40
> To: Dietmar Maurer
> Cc: pve-devel at pve.proxmox.com
> Subject: Re: [pve-devel] IFF_VNET_HDR ioctl on tap device
> 
> The debian bugreport of user was about a string change in qemu , which
> cause libvirt to not doing ioctl, and perfs was slower.
> So i'm not sure qemu do it himself.
> I'll try to investigate about it this week,doing some iperf stats.
> 
> -Alexandre
> 
> 
> ----- Mail original -----
> 
> De: "Dietmar Maurer" <dietmar at proxmox.com>
> À: "Alexandre DERUMIER" <aderumier at odiso.com>
> Cc: pve-devel at pve.proxmox.com
> Envoyé: Mardi 17 Avril 2012 12:23:18
> Objet: RE: [pve-devel] IFF_VNET_HDR ioctl on tap device
> 
> 
> 
> > -----Original Message-----
> > From: Alexandre DERUMIER [mailto:aderumier at odiso.com]
> > Sent: Dienstag, 17. April 2012 12:12
> > To: Dietmar Maurer
> > Cc: pve-devel at pve.proxmox.com
> > Subject: Re: [pve-devel] IFF_VNET_HDR ioctl on tap device
> >
> > I thinked to put it somewhere in /var/lib/qemu-server/pve-bridge after
> > tap device creation ?
> 
> Are you sure we need that. Seem that is already in
> 
> qemu-kvm/net/tap-linux.c (line 57)
> 
> Or is that something else?
> 
> - Dietmar
> 
> 
> 
> 
> 
> --
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> --
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> 
> 
> 	Alexandre D erumier
> Ingénieur Système
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