On 04/08/14 16:20, Zoltan Kiss wrote:
This series starts using carrier off as a way to purge packets when the guest is
not able (or willing) to receive them. It is a much faster way to get rid of
packets waiting for an overwhelmed guest.
The first patch changes current netback code where it relies currently on
netif_carrier_ok.
The second turns off the carrier if the guest times out on a queue, and only
turn it on again if that queue (or queues) resurrects.
Signed-off-by: Zoltan Kiss <zoltan.k...@citrix.com>
Signed-off-by: David Vrabel <david.vra...@citrix.com>
Cc: net...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: xen-de...@lists.xenproject.org
Sorry, I forgot to include v2 in the subject header, and the version
history for the second patch:
v2:
- added a lot more comments
- fixing the bit checking in RX interrupt
- move out the bulk of the code from the main thread function into
xenvif_rx_purge_event
Zoli
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