From: Paolo Bonzini <pbonzini@redhat.com>
Date: Sun, 14 Feb 2016 17:17:07 +0000 (+0100)
Subject: virtio: export vring_notify as virtio_should_notify
X-Git-Tag: v2.6.0-rc0~76^2~10
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=adb3feda8daeacb63d14b086ef60ccf963699096;p=thirdparty%2Fqemu.git

virtio: export vring_notify as virtio_should_notify

Virtio dataplane needs to trigger the irq manually through the
guest notifier.  Export virtio_should_notify so that it can be
used around event_notifier_set.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
---

diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index f419e7cb575..08275a98482 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1162,7 +1162,7 @@ void virtio_irq(VirtQueue *vq)
     virtio_notify_vector(vq->vdev, vq->vector);
 }
 
-static bool vring_notify(VirtIODevice *vdev, VirtQueue *vq)
+bool virtio_should_notify(VirtIODevice *vdev, VirtQueue *vq)
 {
     uint16_t old, new;
     bool v;
@@ -1187,7 +1187,7 @@ static bool vring_notify(VirtIODevice *vdev, VirtQueue *vq)
 
 void virtio_notify(VirtIODevice *vdev, VirtQueue *vq)
 {
-    if (!vring_notify(vdev, vq)) {
+    if (!virtio_should_notify(vdev, vq)) {
         return;
     }
 
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 3ecdb207291..2b5b248b0c3 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -163,6 +163,7 @@ void virtqueue_get_avail_bytes(VirtQueue *vq, unsigned int *in_bytes,
                                unsigned int *out_bytes,
                                unsigned max_in_bytes, unsigned max_out_bytes);
 
+bool virtio_should_notify(VirtIODevice *vdev, VirtQueue *vq);
 void virtio_notify(VirtIODevice *vdev, VirtQueue *vq);
 
 void virtio_save(VirtIODevice *vdev, QEMUFile *f);