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咨询下DOORBELL???



大家好

咨询下 DOORBELL 到底属于Direct I/O Operation 还是Message Passing

按照STK_C6657下SRIO例程packet_type<0x90的都是Direct I/O 大于等于的都是Message Passing

在一个论文里看到有如下有关DOORBELL的叙述:是不是和上面的矛盾着