}
int
-virtio_user_start_device(struct virtio_user_dev *dev)
+virtio_user_dev_set_features(struct virtio_user_dev *dev)
{
uint64_t features;
- int ret;
+ int ret = -1;
- /*
- * XXX workaround!
- *
- * We need to make sure that the locks will be
- * taken in the correct order to avoid deadlocks.
- *
- * Before releasing this lock, this thread should
- * not trigger any memory hotplug events.
- *
- * This is a temporary workaround, and should be
- * replaced when we get proper supports from the
- * memory subsystem in the future.
- */
- rte_mcfg_mem_read_lock();
pthread_mutex_lock(&dev->mutex);
if (dev->backend_type == VIRTIO_USER_BACKEND_VHOST_USER &&
if (virtio_user_queue_setup(dev, virtio_user_create_queue) < 0)
goto error;
- /* Step 1: negotiate protocol features & set features */
features = dev->features;
-
/* Strip VIRTIO_NET_F_MAC, as MAC address is handled in vdev init */
features &= ~(1ull << VIRTIO_NET_F_MAC);
/* Strip VIRTIO_NET_F_CTRL_VQ, as devices do not really need to know */
if (ret < 0)
goto error;
PMD_DRV_LOG(INFO, "set features: %" PRIx64, features);
+error:
+ pthread_mutex_unlock(&dev->mutex);
+
+ return ret;
+}
+
+int
+virtio_user_start_device(struct virtio_user_dev *dev)
+{
+ int ret;
+
+ /*
+ * XXX workaround!
+ *
+ * We need to make sure that the locks will be
+ * taken in the correct order to avoid deadlocks.
+ *
+ * Before releasing this lock, this thread should
+ * not trigger any memory hotplug events.
+ *
+ * This is a temporary workaround, and should be
+ * replaced when we get proper supports from the
+ * memory subsystem in the future.
+ */
+ rte_mcfg_mem_read_lock();
+ pthread_mutex_lock(&dev->mutex);
+
+ if (dev->backend_type == VIRTIO_USER_BACKEND_VHOST_USER &&
+ dev->vhostfd < 0)
+ goto error;
/* Step 2: share memory regions */
ret = dev->ops->send_request(dev, VHOST_USER_SET_MEM_TABLE, NULL);
dev->vhostfds[q] = -1;
dev->tapfds[q] = -1;
}
+ } else if (dev->backend_type ==
+ VIRTIO_USER_BACKEND_VHOST_VDPA) {
+ dev->ops = &virtio_ops_vdpa;
+ } else {
+ PMD_DRV_LOG(ERR, "Unknown backend type");
+ return -1;
}
}