3com Corporation

Rich Traber

Li-Jau Yang

Li-Jau (Steven) Yang

Chi-Le Wang

A device for translating medium access control (MAC) dependent descriptors for a high performance network interface card. Specifically, one embodiment of the present invention includes a circuit for translating a medium access control descriptor from a first format into a second format. The circuit includes a translator circuit coupled to receive a descriptor which corresponds to data stored within a memory. Specifically, the translator circuit translates the descriptor from a first descriptor format into a second descriptor format. Furthermore, the circuit includes a medium access control (MAC) circuit coupled to the translator circuit to receive the descriptor in the second descriptor format. More specifically, the medium access control circuit uses the descriptor in the second descriptor format to retrieve the data from the memory.

Device for translating medium access control dependent descriptors for a high performance network

Hardware only transmission control protocol segmentation for a high performance network interface card. Specifically, one embodiment of the present invention includes a circuit for implementing transmission control protocol (TCP) segmentation. The circuit includes a segmentation circuit coupled to receive a descriptor from a host device which corresponds to data. The segmentation circuit utilizes the descriptor to generate other descriptors that describe each frame segment. Furthermore, the circuit also includes a data download circuit coupled to the segmentation circuit to receive the frame segment descriptors. Specifically, the data download circuit retrieves the data from a memory. Moreover, the circuit includes a medium access control circuit coupled to the data download circuit to receive the data in a frame segment.

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Fremont, CA, United States of America

Rich Traber