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[Qemu-devel] [PATCH 3/3] xen: flush queue when getting an event


From: Paolo Bonzini
Subject: [Qemu-devel] [PATCH 3/3] xen: flush queue when getting an event
Date: Thu, 9 Aug 2012 16:45:57 +0200

xen does not have a register that, when written, will cause can_receive
to go from false to true.  However, flushing the queue can be attempted
whenever the front-end raises its side of the Xen event channel.  There
is a single event channel for tx and rx.

Cc: Stefano Stabellini <address@hidden>
Cc: Stefan Hajnoczi <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
 hw/xen_nic.c            |  1 +
 1 file modificati, 1 inserzioni(+)

diff --git a/hw/xen_nic.c b/hw/xen_nic.c
index 8b79bfb..cf7d559 100644
--- a/hw/xen_nic.c
+++ b/hw/xen_nic.c
@@ -415,6 +415,7 @@ static void net_event(struct XenDevice *xendev)
 {
     struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
     net_tx_packets(netdev);
+    qemu_flush_queued_packets(&netdev->nic->nc);
 }
 
 static int net_free(struct XenDevice *xendev)
-- 
1.7.11.2




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