*/
uint64_t supported_features;
uint64_t features;
+
+ struct vhost_device_ops const *notify_ops;
};
struct vhost_user_connection {
*features = vsocket->features;
pthread_mutex_unlock(&vhost_user.mutex);
- return vsocket ? 0 : -1;
+ if (!vsocket) {
+ RTE_LOG(ERR, VHOST_CONFIG,
+ "socket file %s is not registered yet.\n", path);
+ return -1;
+ } else {
+ return 0;
+ }
}
/*
pthread_mutex_init(&vsocket->conn_mutex, NULL);
vsocket->dequeue_zero_copy = flags & RTE_VHOST_USER_DEQUEUE_ZERO_COPY;
+ /*
+ * Set the supported features correctly for the builtin vhost-user
+ * net driver.
+ *
+ * Applications know nothing about features the builtin virtio net
+ * driver (virtio_net.c) supports, thus it's not possible for them
+ * to invoke rte_vhost_driver_set_features(). To workaround it, here
+ * we set it unconditionally. If the application want to implement
+ * another vhost-user driver (say SCSI), it should call the
+ * rte_vhost_driver_set_features(), which will overwrite following
+ * two values.
+ */
+ vsocket->supported_features = VIRTIO_NET_SUPPORTED_FEATURES;
+ vsocket->features = VIRTIO_NET_SUPPORTED_FEATURES;
+
if ((flags & RTE_VHOST_USER_CLIENT) != 0) {
vsocket->reconnect = !(flags & RTE_VHOST_USER_NO_RECONNECT);
if (vsocket->reconnect && reconn_tid == 0) {
return -1;
}
+/*
+ * Register ops so that we can add/remove device to data core.
+ */
+int
+rte_vhost_driver_callback_register(const char *path,
+ struct vhost_device_ops const * const ops)
+{
+ struct vhost_user_socket *vsocket;
+
+ pthread_mutex_lock(&vhost_user.mutex);
+ vsocket = find_vhost_user_socket(path);
+ if (vsocket)
+ vsocket->notify_ops = ops;
+ pthread_mutex_unlock(&vhost_user.mutex);
+
+ return vsocket ? 0 : -1;
+}
+
+struct vhost_device_ops const *
+vhost_driver_callback_get(const char *path)
+{
+ struct vhost_user_socket *vsocket;
+
+ pthread_mutex_lock(&vhost_user.mutex);
+ vsocket = find_vhost_user_socket(path);
+ pthread_mutex_unlock(&vhost_user.mutex);
+
+ return vsocket ? vsocket->notify_ops : NULL;
+}
+
int
rte_vhost_driver_session_start(void)
{