Apparatus and method for stateless CRC calculation
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United States of America Patent
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Aug 24, 2010
Grant Date -
Jul 19, 2007
app pub date -
Feb 17, 2006
filing date -
Jan 19, 2006
priority date (Note) -
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Abstract
A mechanism for performing remote direct memory access (RDMA) operations between a first server and a second server. The apparatus includes a packet parser and a protocol engine. The packet parser processes a TCP segment within an arriving network frame, where the packet parser performs one or more speculative CRC checks according to an upper layer protocol (ULP), and where the one or more speculative CRC checks are performed concurrent with arrival of the network frame. The protocol engine is coupled to the packet parser. The protocol engine receives results of the one or more speculative CRC checks, and selectively employs the results for validation of a framed protocol data unit (FPDU) according to the ULP.
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