Broadcom Corporation

Sun Microsystems, Inc.

Stmicroelectronics Gmbh

Protip Roy

Scott Sterling McDaniel

Hemal Vinodchandra Shah

Rafi Shalom

Steve J Lindsay

James Anthony Gilbert

Tim Sharp

Disclosed are various embodiments that provide short packet transmission by a network interface controller (NIC). The NIC may receive a signal indicating that a set of buffer descriptors is available for fetching from a host device. The NIC is configured to fetch the set of buffer descriptors from the host device, the set of buffer descriptors comprising a control flag, the control flag indicating whether the set of buffer descriptors comprises immediate packet data; and the NIC may transmit the immediate packet data as a transmit packet if the control flag indicates that the set of buffer descriptors comprises immediate packet data.

Short packet transmission

A network controller in a communication device may be operable to provide pass-through communication of local host-management traffic between a local host and a management controller within the communication device, wherein the local host may be operable to utilize its network processing resources during communication of the local host-management traffic. The network controller may use packet filtering to provide the pass-through communication, wherein the network controller may utilize a plurality filtering rules during filtering of packets received in the network controller. The filtering rules may specify packet processing and/or forwarding actions by said network controller based on one or more specified conditions. The specified conditions may based on one or more match criteria; wherein the match criteria comprising source address, destination address, and/or traffic type data in the received packets. Address learning mechanisms may be used in the network controller to enable configuring and/or performing packet filtering transparently.

Method and system for packet filtering for local host-management controller pass-through communication via network controller

The present invention provides a method and apparatus for configuring a timing feedback path in a semiconductor device. The apparatus includes an oscillator adapted to provide a reference clock signal. The apparatus further includes at least one buffer layer adapted to receive the reference clock signal and provide a delayed clock signal, a selector adapted to select one of the delayed clock signal and the reference clock signal, and a device adapted to provide an output clock signal such that the selected one of the delayed clock signal and the reference clock signal is substantially in phase with the reference clock signal.

Method and apparatus for configuring a clock timing feedback path

The present invention provides a method and apparatus for arbitrating master-slave transactions. The apparatus includes a slave device adapted to receive a first request from a first master device. The apparatus further includes a record of one or more previous requests from the first master device and at least one additional master device, wherein the slave device is adapted to grant the first request based upon the record.

Method and apparatus for arbitrating master-slave transactions

A microprocessor and associated method includes a plurality of resources for executing instructions, and an out-of-order instruction shelf for priority/age tracking of the instructions. The instruction shelf has an instruction pool with a plurality of slots therein for storing respective instructions, and an instruction age tracker for storing therein a matrix of rows and columns of logic states associated with relative ages of instructions. The logic states in a given column and row of the matrix are associated with a respective slot of the instruction pool. Also, the microprocessor includes an instructions scheduler for performing at least one logic function on each column of the matrix to determine an oldest instruction, for dispatching instructions to the plurality of resources based thereon, and for updating the matrix based upon dispatched instructions.

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San Diego, CA, United States of America

Protip Roy