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From 7fc16be815b8ff85f174fc93d67f82400da08120 Mon Sep 17 00:00:00 2001
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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Thu, 9 Aug 2012 16:45:57 +0200
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Subject: [PATCH] xen: flush queue when getting an event
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xen does not have a register that, when written, will cause can_receive
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to go from false to true. However, flushing the queue can be attempted
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whenever the front-end raises its side of the Xen event channel. There
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is a single event channel for tx and rx.
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Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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Cc: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Reviewed-by: Amos Kong <akong@redhat.com>
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Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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(cherry picked from commit a98b140223d3a627eab7ee3ddec645bab630d756)
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Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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---
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hw/xen_nic.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/hw/xen_nic.c b/hw/xen_nic.c
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index 8b79bfb..cf7d559 100644
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--- a/hw/xen_nic.c
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+++ b/hw/xen_nic.c
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@@ -415,6 +415,7 @@ static void net_event(struct XenDevice *xendev)
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{
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struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
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net_tx_packets(netdev);
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+ qemu_flush_queued_packets(&netdev->nic->nc);
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}
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static int net_free(struct XenDevice *xendev)
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--
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1.7.12.1
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