| 摘要 |
An apparatus and method are provided for communicating data between central processing units at a data processing system having a first central processing unit and a second central processing unit coupled together by means of an interconnect. Each central processing unit comprising a respective network interface controller operable to (a) form intermediate data units by at least partially framing data for communication at the data link layer in accordance with a network protocol, and (b) at least partially process at the data link layer in accordance with the network protocol intermediate data units so as to extract the data for communication carried within each intermediate data unit. The first central processing unit passes data for communication to its first network interface controller. The first network interface controller forms intermediate data units comprising the data for communication by at least partially framing the data for communication at the data link layer in accordance with the network protocol, encapsulates the intermediate data units of the network protocol in data packets for transmission over the interconnect and transmits the encapsulated data packets over the interconnect to the second network interface controller. The second network interface controller receives the encapsulated data packets, extracts the intermediate data units from the encapsulated data packets, at least partially processes each intermediate data unit at the data link layer in accordance with the network protocol so as to extract the data carried within each intermediate data unit and passes the extracted data to the second central processing unit. |
