DriverStudio里面如何接收完整的包

在NDIS_STATUS OnReceive(IN OUT KNdisPartialPacket& PacketToAccept, IN PVOID HeaderBuffer, IN UINT HeaderBufferSize, IN PVOID LookAheadBuffer, IN UINT LookaheadBufferSize, IN UINT PacketSize);函数中到底要做些什么才能收到完整的包？有没有人做过这一块，帮帮忙啊。