Methods and apparatus for flow control associated with multi-staged queues
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United States of America Patent
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Apr 10, 2012
Issued Date -
N/A
app pub date -
Sep 30, 2008
filing date -
Sep 11, 2008
priority date (Note) -
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Abstract
In one embodiment, a method, comprising receiving at a receive side of a physical link a request to suspend transmission of data from a queue within a transmit side of a first stage of queues and to suspend transmission via a path including the physical link, a portion of the first stage of queues, and a portion of a second stage of queues. The method includes sending, in response to the request, a flow control signal to a flow control module configured to schedule transmission of the data from the queue within the transmit side of the first stage of queues. The flow control signal is associated with a first control loop including the path and differing from a second control loop that excludes the first stage of queues.
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