Method and apparatus for direct memory access on transmit comple

Details Method and apparatus for direct memory access on transmit comple Method and apparatus for direct memory access on transmit comple

1997-04-30

1999-07-06

Nguyen, Chau

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370471, 370474, H04L 1256

Patent

active

059205644

ABSTRACT:
A method and apparatus are provided for processing data transmissions across data communications networks including ATM networks, for example, to support arbitrary user action on transmit completes. Sequential transport stream packets are obtained. A predetermined field of each transport stream packet is interrogated to identify a DMA on transmit complete. The transmission of a last cell in each transport stream packet is identified. Then responsive to identifying the DMA on transmit complete, an address for a DMA descriptor is fetched from the transport stream packet. The DMA descriptor is enqueued to a DMA engine to execute the DMA descriptor.

REFERENCES:
patent: 5533020 (1996-07-01), Byrn et al.
patent: 5546385 (1996-08-01), Capsi et al.
patent: 5548587 (1996-08-01), Bailey et al.
patent: 5644784 (1997-07-01), Peek
patent: 5708779 (1998-01-01), Graziano et al.

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