Credit-based methods and systems for controlling data flow between a sender and a receiver with reduced copying of data
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United States of America Patent
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Jul 15, 2003
Grant Date -
N/A
app pub date -
Dec 31, 1998
filing date -
Aug 4, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and systems for controlling data flow between a sender and a receiver include communicating credit lists to the sender. The credit lists include credits indicative of receive buffer sizes accessible by the receiver and capable of receiving data. The sender transmits data packets to the receiver. The data packets are preferably no greater in size than the credits specified in the credit list. When the sender uses all of the credits, the sender preferably refrains from sending data packets to the receiver until the supply of credits is replenished by the receiver. Because data flow between the sender and the receiver is regulated using credits, the likelihood of data overflow errors is reduced and communication efficiency is increased.
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