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Re: [Qemu-devel] [PATCH] hw/net: handle flow control in mcf_fec driver r
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] [PATCH] hw/net: handle flow control in mcf_fec driver receiver |
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Date: |
Tue, 28 Jul 2015 11:29:08 +0100 |
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User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Tue, Jul 28, 2015 at 11:02:54AM +1000, Greg Ungerer wrote:
> The network mcf_fec driver emulated receive side method is not dealing
> with network queue flow control properly.
>
> Modify the receive side to check if we have enough space in the
> descriptors to store the current packet. If not we process none of it
> and return 0. When the guest frees up some buffers through its descriptors
> we signal the qemu net layer to send more packets.
>
> Signed-off-by: Greg Ungerer <address@hidden>
> ---
> hw/net/mcf_fec.c | 45 ++++++++++++++++++++++++++++++++++-----------
> 1 file changed, 34 insertions(+), 11 deletions(-)
Thanks, applied to my net tree:
https://github.com/stefanha/qemu/commits/net
Stefan
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