Emulex Corporation

Wayne T Rickard

Peter Mark Fiacco

Vi Chau

A system is configured to provide an efficient management or control of a buffer memory system. The system can also be used to transmit data between communicating components of a computer system. A first-in-first-out memory stores a list of buffer pointers, and control logic returns buffer pointers from the transmit registers, and moves buffer pointers to the bottom of the FIFO memory.

Efficient transmission buffer management system

A partitioned memory is divided into a number of large buffers, and one or more of the large buffers is divided to create an equal number of small buffers. Each remaining large buffer is associated with one small buffer, and the paired buffers may be addressed by a single pointer. The pointers are stored in a first-in-first-out unit to create a pool of available buffer pairs.

Memory buffer system using a single pointer to reference multiple

An apparatus for reordering frames of data within an interface device of a receiving device. The present invention can switch context to allow frames associated with more than one sequence to be handled concurrently. A 'Missing Frame Window' is generated and associated with each sequence. Each Missing Frame Window maintains a record of frames of a particular sequence received out of order. When a frame associated with a particular sequence is received out of order, a bit within the Missing Frame Window representing the 'missing' frame is asserted to represent receipt of the out of order frame. The out of order frame is then stored to be transferred to a host in order upon receipt of those frames which must be transferred before transfer of the out of order frame.

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Oceanside, CA, United States of America

Wayne T Rickard