[RFC PATCH 07/12] vdpa: add vhost_vdpa_reset_queue

[Eugenio Pérez]

Split out vq reset operation in its own function, as it may be called
with ring reset.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
---
 hw/virtio/vhost-vdpa.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 6ae276ccde..df2515a247 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -547,6 +547,21 @@ int vhost_vdpa_set_vring_ready(struct vhost_vdpa *v, 
unsigned idx)
     return vhost_vdpa_set_vring_ready_internal(v, idx, true);
 }
 
+/* TODO: Properly reorder static functions */
+static void vhost_vdpa_svq_stop(struct vhost_dev *dev, unsigned idx);
+static void vhost_vdpa_reset_queue(struct vhost_dev *dev, int idx)
+{
+    struct vhost_vdpa *v = dev->opaque;
+
+    if (dev->features & VIRTIO_F_RING_RESET) {
+        vhost_vdpa_set_vring_ready_internal(v, idx, false);
+    }
+
+    if (v->shadow_vqs_enabled) {
+        vhost_vdpa_svq_stop(dev, idx - dev->vq_index);
+    }
+}
+
 /*
  * The use of this function is for requests that only need to be
  * applied once. Typically such request occurs at the beginning
@@ -1543,4 +1558,5 @@ const VhostOps vdpa_ops = {
         .vhost_force_iommu = vhost_vdpa_force_iommu,
         .vhost_set_config_call = vhost_vdpa_set_config_call,
         .vhost_reset_status = vhost_vdpa_reset_status,
+        .vhost_reset_queue = vhost_vdpa_reset_queue,
 };
-- 
2.39.3