Lsi Corporation

Brian K Einsweiler

Luke Everett McKay

Carl Edward Gygi

Steven F Faulhaber

Brian J Varney

Craig R Chafin

Jason McGinley

Warren R Volz

A system and method for improving message passing between a computer and peripheral devices is disclosed. The system and method for improving message passing between a computer and peripheral devices incorporate data checking on the command/message data and each scatter gather list element. The method in accordance with the present disclosure enables a peripheral device to check the integrity of the message and ownership of the scatter gather list element before the data is processed.

Scatter gather list for data integrity

Apparatus and methods for improved high-speed communication by exchanging low-speed information regarding the high-speed exchanges over the same communication medium. In one exemplary embodiment, a communication device includes a high-speed transceiver adapted to exchange high-speed data with another device via a communication medium using high-frequency signals. The device also includes a low-speed component adapted to exchange low-speed information over the same communication medium as low-frequency signals. The low-frequency signals may be applied as common mode signals to a differential communication path so as to not interfere with the high-speed data exchanges. In another embodiment, a high-pass filter may be included in the device to remove the low-frequency signals before the high-speed data is applied to the high-speed transceiver. Responsive to receipt of the low-speed information, a device may adjust parameters of the transceiver to improve the high-speed data exchanges.

Apparatus and methods for improved high-speed communication systems

Methods and systems for improving communication throughput of a link between SAS/SATA devices. The link, initially established at a first signal rate, is one of a SATA link and a SAS link. A SAS/SATA device increments one of the at least one counter based on an error sensed on the link. Based on the at least one counter, the SAS/SATA device determines whether to maintain the first signal rate. The link is re-established at a second signal rate based on the determination such that the second signal rate is lower than the first signal rate.

Methods and systems for improving communication throughput of storage links

Apparatus, systems, and methods for testing SAS cables by applying a signal to one end of a SAS cable, receiving the signal from another end of the SAS cable, and generating an output of information relating to the testing. The testing apparatus may test one or more configuration characteristic of the SAS cable, including, for example a crossover status, a polarity status of transmit ('TX') wires, and a polarity status of receive ('RX') wires.

Growing community of inventors

Colorado Springs, CO, United States of America

Brian K Einsweiler