vhost: add notification for packed ring

[dpdk.git] / lib / librte_vhost / vhost_user.c

diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index 92958b9..dc53ff7 100644 (file)
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -512,6 +512,30 @@ translate_ring_addresses(struct virtio_net *dev, int vq_index)
                vq = dev->virtqueue[vq_index];
                addr = &vq->ring_addrs;
 
+               len = sizeof(struct vring_packed_desc_event);
+               vq->driver_event = (struct vring_packed_desc_event *)
+                                       (uintptr_t)ring_addr_to_vva(dev,
+                                       vq, addr->avail_user_addr, &len);
+               if (vq->driver_event == NULL ||
+                               len != sizeof(struct vring_packed_desc_event)) {
+                       RTE_LOG(DEBUG, VHOST_CONFIG,
+                               "(%d) failed to find driver area address.\n",
+                               dev->vid);
+                       return dev;
+               }
+
+               len = sizeof(struct vring_packed_desc_event);
+               vq->device_event = (struct vring_packed_desc_event *)
+                                       (uintptr_t)ring_addr_to_vva(dev,
+                                       vq, addr->used_user_addr, &len);
+               if (vq->device_event == NULL ||
+                               len != sizeof(struct vring_packed_desc_event)) {
+                       RTE_LOG(DEBUG, VHOST_CONFIG,
+                               "(%d) failed to find device area address.\n",
+                               dev->vid);
+                       return dev;
+               }
+
                return dev;
        }