Method and network device for creating circular queue structures in shared memory
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United States of America Patent
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Feb 25, 2003
Grant Date -
Jan 31, 2002
app pub date -
Sep 30, 1998
filing date -
Sep 30, 1998
priority date (Note) -
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Abstract
A method and device of creating one or more buffer structures in a shared memory that exists between a host and a network device is disclosed. The method includes the step of storing within a block of shared memory an administration block having a base address and a descriptor ring parameter, which includes information relating to a descriptor ring and frame data buffer sizes. The base address of the administration block is written into the network device. An initialization command is then issued from the host to the network device. The network device reads the administration block and shared memory and one or more descriptors are constructed within the network device. Each descriptor points to a frame data buffer within shared memory. The descriptors are then stored.
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