virtio-blk: tell dataplane which vq to notify

Let the virtio_blk_data_plane_notify() caller decide which virtqueue to
notify.  This will allow the function to be used with multiqueue.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1466511196-12612-4-git-send-email-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

3 files changed, 4 insertions, 4 deletions

diff --git a/hw/block/dataplane/virtio-blk.c b/hw/block/dataplane/virtio-blk.c
index c20a195eb5..835021b235 100644
--- a/hw/block/dataplane/virtio-blk.c
+++ b/hw/block/dataplane/virtio-blk.c
@@ -47,9 +47,9 @@ struct VirtIOBlockDataPlane {
 };
 
 /* Raise an interrupt to signal guest, if necessary */
-void virtio_blk_data_plane_notify(VirtIOBlockDataPlane *s)
+void virtio_blk_data_plane_notify(VirtIOBlockDataPlane *s, VirtQueue *vq)
 {
-    set_bit(0, s->batch_notify_vqs);
+    set_bit(virtio_get_queue_index(vq), s->batch_notify_vqs);
     qemu_bh_schedule(s->bh);
 }
 
diff --git a/hw/block/dataplane/virtio-blk.h b/hw/block/dataplane/virtio-blk.h
index 0714c11a2b..b1f0b95b32 100644
--- a/hw/block/dataplane/virtio-blk.h
+++ b/hw/block/dataplane/virtio-blk.h
@@ -26,6 +26,6 @@ void virtio_blk_data_plane_destroy(VirtIOBlockDataPlane *s);
 void virtio_blk_data_plane_start(VirtIOBlockDataPlane *s);
 void virtio_blk_data_plane_stop(VirtIOBlockDataPlane *s);
 void virtio_blk_data_plane_drain(VirtIOBlockDataPlane *s);
-void virtio_blk_data_plane_notify(VirtIOBlockDataPlane *s);
+void virtio_blk_data_plane_notify(VirtIOBlockDataPlane *s, VirtQueue *vq);
 
 #endif /* HW_DATAPLANE_VIRTIO_BLK_H */
diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index 4a3781a5f7..bcce3df22d 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -55,7 +55,7 @@ static void virtio_blk_req_complete(VirtIOBlockReq *req, unsigned char status)
     stb_p(&req->in->status, status);
     virtqueue_push(s->vq, &req->elem, req->in_len);
     if (s->dataplane_started && !s->dataplane_disabled) {
-        virtio_blk_data_plane_notify(s->dataplane);
+        virtio_blk_data_plane_notify(s->dataplane, s->vq);
     } else {
         virtio_notify(vdev, s->vq);
     }