Re: [Qemu-devel] [PATCH for-2.4] e1000: flush packets when link comes up

[Stefan Hajnoczi]

On Thu, Jun 25, 2015 at 10:18:05AM +0100, Stefan Hajnoczi wrote:
> e1000_can_receive() checks the link up status register bit.  If the bit
> is clear, packets will be queued and the peer may disable receive to
> avoid wasting CPU reading packets that cannot be delivered.  The queue
> must be flushed once the link comes back up again.
> 
> This patch fixes broken e1000 receive with Mac OS X Snow Leopard guests
> and tap networking.  Flushing the queue invokes the async send callback,
> which re-enables tap fd read.
> 
> Reported-by: Jonathan Liu <address@hidden>
> Signed-off-by: Stefan Hajnoczi <address@hidden>
> ---
>  hw/net/e1000.c | 3 +++
>  1 file changed, 3 insertions(+)

Thanks, applied to my net tree:
https://github.com/stefanha/qemu/commits/net

Stefan

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