Electrical computers and digital processing systems: multicomput – Network-to-computer interfacing
Reexamination Certificate
2003-04-22
2009-02-24
Etienne, Ario (Department: 2453)
Electrical computers and digital processing systems: multicomput
Network-to-computer interfacing
C709S238000, C711S108000, C370S463000
Reexamination Certificate
active
07496689
ABSTRACT:
A TCP/IP offload network interface device (NID) is integrated with a processing device that executes a stack. The TCP/IP offload NID can either be a full TCP/IP offload device or a partial TCP/IP offload device. Common types of packets are processed by the NID in a fast-path such that the stack is offloaded of TCP and IP protocol processing tasks. A hash is made from the packet header and is pushed onto a queue. The hash is later popped off the queue and is used to identify an associated TCB number from a hash table. A mechanism caches hash buckets in SRAM and stores other hash buckets in DRAM. An “IN SRAM CAM” is used to determine whether the TCB associated with the identified TCB number is cached in SRAM or whether it must be moved from DRAM into the SRAM cache. A lock table and a “lock table CAM” mechanism is disclosed that facilitates multiple processors working on the protocol processing of a single packet.
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Blightman Stephen E. J.
Philbrick Clive M.
Sharp Colin C.
Starr Daryl D.
Alacritech, Inc.
Chea Philip J
Etienne Ario
Lauer Mark
Silicon Edge Law Group LLP
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