| 摘要 |
A method is disclosed comprising: receiving,.by a network interface, data and a corresponding header; storing, by the network interface, the data in a first memory buffer of a computer that is coupled to the network interface; and storing, by the network interface, the data in a second memory buffer of the computer. For example, the network interface can first store the data in a part of the computer memory that is accessible by a device driver for the network interface. If the application provides to the driver a pointer to a location in memory for storing the data, the driver can pass this pointer to the network interface, which can write the data directly to that location without copying by the CPU. If, however, the application does not provide a pointer, the data controlled by the driver can be copied by the CPU into the application's memory space.
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