Re: [PATCH] macvlan: add tap device backend
From: Michael S. Tsirkin
Date:  Mon Aug 10 2009 - 09:45:02 EST
On Mon, Aug 10, 2009 at 03:29:46PM +0200, Arnd Bergmann wrote:
> On Monday 10 August 2009, Michael S. Tsirkin wrote:
> > 
> > > Would it be enough to check the dev_queue_xmit() return
> > > code for NETDEV_TX_BUSY?
> > > 
> > > How would I get notified when it gets free again?
> > 
> > You can do this by creating a socket. Look at how tun does
> > this now.
> 
> Hmm, I was hoping to be able to avoid this, because I can
> interact more directly with the outbound physical interface
> using dev_queue_xmit() instead of netif_rx_ni().
Yea, that's what tun does. socket just notifies you when
packets are freed.
> I'll have a look. Thanks,
> 
> 	Arnd <><
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