Method and system for data placement of out-of-order (OOO) TCP segments
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United States of America Patent
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Jul 8, 2008
Grant Date -
Jul 8, 2004
app pub date -
Aug 29, 2003
filing date -
Aug 30, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
Certain aspects of the invention provide handling out-of-order TCP segments and may include placing a first received segment in a host buffer and determining whether a second received segment is an in-order or out-of-order (OOO) segment. Control information associated with OOO segments may be stored locally on a network interface card (NIC) and the OOO segment placed in a host buffer rather than on the NIC. An address or location occupied by an end of the first received segment may be recorded and stored on the NIC. As in-order and/or OOO segments are received, control information associated with a starting address and/or end address may be stored on the NIC. Accordingly, as subsequent in-order and/or OOO segments are received, they may be correctly placed within the host buffer based on the recorded and/or stored control information without being buffered on the NIC.
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