* [Qemu-devel] [PATCH] notify io_thread at the end of rx handling
@ 2009-07-20 17:07 Glauber Costa
2009-07-20 18:15 ` Mark McLoughlin
0 siblings, 1 reply; 2+ messages in thread
From: Glauber Costa @ 2009-07-20 17:07 UTC (permalink / raw)
To: qemu-devel; +Cc: aliguori
This is a backport from qemu-kvm. Just instead of using kvm's specific
notification mechanism, we use qemu_notify_event()
Signed-off-by: Glauber Costa <glommer@redhat.com>
---
hw/virtio-net.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/hw/virtio-net.c b/hw/virtio-net.c
index 7a7eafe..218f985 100644
--- a/hw/virtio-net.c
+++ b/hw/virtio-net.c
@@ -305,6 +305,10 @@ static void virtio_net_handle_rx(VirtIODevice *vdev, VirtQueue *vq)
VirtIONet *n = to_virtio_net(vdev);
qemu_flush_queued_packets(n->vc);
+
+ /* We now have RX buffers, signal to the IO thread to break out of the
+ * select to re-poll the tap file descriptor */
+ qemu_notify_event();
}
static int do_virtio_net_can_receive(VirtIONet *n, int bufsize)
--
1.6.2.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [Qemu-devel] [PATCH] notify io_thread at the end of rx handling
2009-07-20 17:07 [Qemu-devel] [PATCH] notify io_thread at the end of rx handling Glauber Costa
@ 2009-07-20 18:15 ` Mark McLoughlin
0 siblings, 0 replies; 2+ messages in thread
From: Mark McLoughlin @ 2009-07-20 18:15 UTC (permalink / raw)
To: Glauber Costa; +Cc: aliguori, qemu-devel
On Mon, 2009-07-20 at 13:07 -0400, Glauber Costa wrote:
> This is a backport from qemu-kvm. Just instead of using kvm's specific
> notification mechanism, we use qemu_notify_event()
>
> Signed-off-by: Glauber Costa <glommer@redhat.com>
> ---
> hw/virtio-net.c | 4 ++++
> 1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/hw/virtio-net.c b/hw/virtio-net.c
> index 7a7eafe..218f985 100644
> --- a/hw/virtio-net.c
> +++ b/hw/virtio-net.c
> @@ -305,6 +305,10 @@ static void virtio_net_handle_rx(VirtIODevice *vdev, VirtQueue *vq)
> VirtIONet *n = to_virtio_net(vdev);
>
> qemu_flush_queued_packets(n->vc);
> +
> + /* We now have RX buffers, signal to the IO thread to break out of the
> + * select to re-poll the tap file descriptor */
> + qemu_notify_event();
> }
Looks good to me
Acked-by: Mark McLoughlin <markmc@redhat.com>
Cheers,
Mark.
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