Patents Assigned to Netspeed Systems, Inc.
  • Publication number: 20220012177
    Abstract: Methods and example implementations described herein are generally directed to the addition of networks-on-chip (NoC) to FPGAs to customize traffic and optimize performance. An aspect of the present application relates to a Field-Programmable Gate-Array (FPGA) system. The FPGA system can include an FPGA having one or more lookup tables (LUTs) and wires, and a Network-on-Chip (NoC) having a hardened network topology configured to provide connectivity at a higher frequency that the FPGA.
    Type: Application
    Filed: May 29, 2021
    Publication date: January 13, 2022
    Applicant: NETSPEED SYSTEMS, INC.
    Inventor: Sailesh KUMAR
  • Patent number: 11176302
    Abstract: Methods and example implementations described herein are generally directed to a System on Chip (SoC) design and verification system and method that constructs SoC from functional building blocks circuits while concurrently taking into account numerous chip level design aspects along with the generation of a simulation environment for design verification. An aspect of the present disclosure relates to a method for generating a System on Chip (SoC) from a floor plan having one or more integration descriptions. The method includes the steps of generating one or more connections between the integration descriptions of the floor plan based at least on a traffic specification, and conducting a design check process on the floor plan. If the design check process on the floor plan is indicative of passing the design check process, then the method generates the SoC according to the one or more connections generated between the integration descriptions.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: November 16, 2021
    Assignee: NETSPEED SYSTEMS, INC.
    Inventors: Nishant Rao, Sailesh Kumar, Pier Giorgio Raponi
  • Patent number: 11144457
    Abstract: Aspects of the present disclosure relate to page locality based memory access request processing in a network-on-chip (NoC) architecture. In an example implementation, the proposed method includes determining, at an arbitrator, while selecting a NoC agent from a plurality of NoC agents for request processing for a forthcoming round, if current NoC agent of current round is processing a packet stream and if said packet stream is completely processed at the end of said current round, wherein processing of the packet stream enables cluster requests to be processed at same part of said memory and enhances page locality; and re-selecting, at said arbitrator, said current NoC agent as the NoC agent for the forthcoming round if said packet stream processing is not completed at the end of said current round, so as to enable said current NoC agent to complete processing of said packet stream in said forthcoming round.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: October 12, 2021
    Assignee: NETSPEED SYSTEMS, INC.
    Inventors: Joseph Rowlands, Joji Philip
  • Patent number: 11023377
    Abstract: Methods and example implementations described herein are generally directed to the addition of networks-on-chip (NoC) to FPGAs to customize traffic and optimize performance. An aspect of the present application relates to a Field-Programmable Gate-Array (FPGA) system. The FPGA system can include an FPGA having one or more lookup tables (LUTs) and wires, and a Network-on-Chip (NoC) having a hardened network topology configured to provide connectivity at a higher frequency that the FPGA.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: June 1, 2021
    Assignee: NetSpeed Systems, Inc.
    Inventor: Sailesh Kumar
  • Patent number: 10983910
    Abstract: The present disclosure relates to a bandwidth weighting mechanism based NoC configuration/constructions for packet routing. In an aspect, the present disclosure relates to a method for packet routing in a circuit architecture, wherein the method includes the steps of managing, at a router of the circuit architecture, one or more catch-up bits, each of the one or more catch-up bits indicating that the router has reset a round of round-robin based packet routing without allowing an agent corresponding to the each of the one or more catch-up bits to complete its respective round; and allowing, by the router, the agent to continue its respective round in catch-up state such that upon completion of the respective round, the agent is switched to normal state.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: April 20, 2021
    Assignee: NETSPEED SYSTEMS, INC.
    Inventors: Joseph Rowlands, Joji Philip
  • Patent number: 10896476
    Abstract: Methods and example implementations described herein are generally directed to repository of integration description of hardware intellectual property (IP) for NoC construction and SoC integration. An aspect of the present disclosure relates to a method for managing a repository of hardware intellectual property (IP) for Network-on-Chip (NoC)/System-on-Chip (SoC) construction. The method includes the steps of storing one or more integration descriptions of the hardware IP in the repository, selecting at least one integration description as a parsed selection from said one or more integration descriptions of the hardware IP for incorporation in the NoC/SoC, and generating the NoC/SoC at least from the parsed selection.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: January 19, 2021
    Assignee: NetSpeed Systems, Inc.
    Inventors: Nishant Rao, Sailesh Kumar, Pier Giorgio Raponi
  • Patent number: 10749811
    Abstract: Example implementations described herein are directed to a configurable Network on Chip (NoC) element that can be configured with a bypass that permits messages to pass through the NoC without entering the queue or arbitration. The configurable NoC element can also be configured to provide a protocol alongside the valid-ready protocol to facilitate valid-ready functionality across virtual channels.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: August 18, 2020
    Assignee: NetSpeed Systems, Inc.
    Inventors: Joseph Rowlands, Joji Philip, Sailesh Kumar, Nishant Rao
  • Patent number: 10735335
    Abstract: Example implementations described herein are directed to a configurable Network on Chip (NoC) element that can be configured with a bypass that permits messages to pass through the NoC without entering the queue or arbitration. The configurable NoC element can also be configured to provide a protocol alongside the valid-ready protocol to facilitate valid-ready functionality across virtual channels.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: August 4, 2020
    Assignee: NetSpeed Systems, Inc.
    Inventors: Joseph Rowlands, Joji Philip, Sailesh Kumar, Nishant Rao
  • Patent number: 10613616
    Abstract: Aspects of the present disclosure are directed to a power specification and Network on Chip (NoC) having a power supervisor (PS) unit. The specification is utilized to generate a NoC with power domains and clock domains. The PS is configured with one or more power domain finite state machines (PDFSMs) that drive signaling for the power domains of the NoC, and is configured to power the NoC elements of the power domain on or off. NoC elements are configured to conduct fencing or draining operations to facilitate the power state transitions.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: April 7, 2020
    Assignee: NetSpeed Systems, Inc.
    Inventors: James A. Bauman, Joe Rowlands, Sailesh Kumar
  • Patent number: 10564703
    Abstract: Aspects of the present disclosure are directed to a power specification and Network on Chip (NoC) having a power supervisor (PS) unit. The specification is utilized to generate a NoC with power domains and clock domains. The PS is configured with one or more power domain finite state machines (PDFSMs) that drive signaling for the power domains of the NoC, and is configured to power the NoC elements of the power domain on or off. NoC elements are configured to conduct fencing or draining operations to facilitate the power state transitions.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: February 18, 2020
    Assignee: NetSpeed Systems, Inc.
    Inventors: James A. Bauman, Joe Rowlands, Sailesh Kumar
  • Patent number: 10564704
    Abstract: Aspects of the present disclosure are directed to a power specification and Network on Chip (NoC) having a power supervisor (PS) unit. The specification is utilized to generate a NoC with power domains and clock domains. The PS is configured with one or more power domain finite state machines (PDFSMs) that drive signaling for the power domains of the NoC, and is configured to power the NoC elements of the power domain on or off. NoC elements are configured to conduct fencing or draining operations to facilitate the power state transitions.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: February 18, 2020
    Assignee: NetSpeed Systems, Inc.
    Inventors: James A. Bauman, Joe Rowlands, Sailesh Kumar
  • Patent number: 10547514
    Abstract: A system and method for automatic crossbar generation and router connections for Network-on-Chip (NoC) topology generation is disclosed. Aspects of the present disclosure relate to methods, systems, and computer readable mediums for generating topology for a given SoC by significantly improving system efficiency by accurately indicating the best possible positions and configurations for hosts and ports within the hosts, along with indicating system level routes to be taken for traffic flows using the NoC interconnect architecture. Aspects of the present disclosure further relate to determining optimal positions of ports within hosts so as to enable low latency and higher message transmission efficiency between the hosts. In yet another aspect, a computationally efficient NoC topology is generated based on allocation of routers and NoC channels so as to identify most efficient routes for various system flows between hosts.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: January 28, 2020
    Assignee: NetSpeed Systems, Inc.
    Inventors: Nishant Rao, Sailesh Kumar, Pier Giorgio Raponi
  • Patent number: 10523599
    Abstract: The present disclosure is directed to buffer sizing of NoC link buffers by utilizing incremental dynamic optimization and machine learning. A method for configuring buffer depths associated with one or more network on chip (NoC) is disclosed. The method includes deriving characteristics of buffers associated with the one or more NoC, determining first buffer depths of the buffers based on the characteristics derived, obtaining traces based on the characteristics derived, measuring trace skews based on the traces obtained, determining second buffer depths based on the trace skews measured, optimizing the buffer depths associated with the network on chip (NoC) based on the second buffer depths, and configuring the buffer depths associated with one or more network on chip (NoC) based on the buffer depths optimized.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: December 31, 2019
    Assignee: NetSpeed Systems, Inc.
    Inventors: Eric Norige, Nishant Rao, Sailesh Kumar
  • Patent number: 10084725
    Abstract: The present disclosure is directed to extracting features from a NoC for machine learning construction. Example implementations include a method for generating a Network on Chip (NoC), wherein the method can extract at least one feature from a NoC specification to derive at least one of: grid features, traffic features and topological features associated with the NoC. The method can perform a process on the at least one of the grid features, the traffic features and the topological features associated with the NoC to determine at least one of an evaluation of at least one mapping strategy selected from a plurality of mapping strategies of the NoC based on a quality metric, and the selection of the at least one mapping strategy is based on the quality metric. The method can further perform generate the NoC based on the process.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: September 25, 2018
    Assignee: NETSPEED SYSTEMS, INC.
    Inventors: Pier Giorgio Raponi, Nishant Rao, Sailesh Kumar
  • Patent number: 10084692
    Abstract: Systems and methods described herein are directed to streaming bridge design implementations that help interconnect and transfer transaction packets between multiple source and destination host interfaces through a Network on Chip (NoC) interconnect, which includes a plurality of NoC router layers and virtual channels (VCs) connecting the router layers. Implementations are configured to support a variety of different traffic profiles, each having a different set of traffic flows. Streaming bridge design implementation can divide streaming bridge into a streaming TX bridge and a streaming RX bridge, wherein TX bridge is operatively coupled with host TX interfaces and RX bridge is operatively coupled with host RX interfaces, and where TX bridge forwards transaction packets from host TX interfaces to different router layers/VCs of NoC, and RX bridge, on the other hand, receives packets from NoC router layers/VCs and transmits the packets to host RX interfaces based on Quality of Service.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: September 25, 2018
    Assignee: NetSpeed Systems, Inc.
    Inventors: Rajesh Chopra, Sailesh Kumar
  • Patent number: 10063496
    Abstract: The present disclosure is directed to buffer sizing of NoC link buffers by utilizing incremental dynamic optimization and machine learning. A method for configuring buffer depths associated with one or more network on chip (NoC) is disclosed. The method includes deriving characteristics of buffers associated with the one or more NoC, determining first buffer depths of the buffers based on the characteristics derived, obtaining traces based on the characteristics derived, measuring trace skews based on the traces obtained, determining second buffer depths based on the trace skews measured, optimizing the buffer depths associated with the network on chip (NoC) based on the second buffer depths, and configuring the buffer depths associated with one or more network on chip (NoC) based on the buffer depths optimized.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: August 28, 2018
    Assignee: NETSPEED SYSTEMS INC.
    Inventors: Eric Norige, Nishant Rao, Sailesh Kumar
  • Patent number: 9928204
    Abstract: Methods and example implementations described herein are generally directed to interconnect architecture, and more specifically, to generation of one or more expanded transactions for conducting simulations and/or NoC design. Aspects of the present disclosure include processing of input traffic specification that is given in terms of groups of hosts, requests, and responses to the requests, in order to generate one or more appropriate/correct expanded transactions that can be simulated.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: March 27, 2018
    Assignee: NetSpeed Systems, Inc.
    Inventors: Eric Norige, Sailesh Kumar
  • Patent number: 9864728
    Abstract: Aspects of the present disclosure provide systems and methods for automatic generation of physically aware aggregation/distribution networks that enable optimized arrangement of a plurality of hardware elements, and provide positions and connectivity for one or more intermediate hardware elements. One or more intermediate hardware elements can be configured to aggregate signals/commands/messages/data from their corresponding hardware elements or from other intermediate hardware elements, and send the aggregated signals/commands/messages/data to a root hardware element that acts as a communication interface for the network. The intermediate hardware elements can also be configured to segregate/distribute signals/commands/message received from the root hardware element to a plurality of specified hardware elements and/or intermediate hardware elements.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: January 9, 2018
    Assignee: NetSpeed Systems, Inc.
    Inventors: Eric Norige, Sailesh Kumar
  • Patent number: 9860197
    Abstract: The present disclosure relates to automatic sizing of NoC channel buffers of one or more virtual channels to optimize NoC design, SoC design, and to meet defined performance objectives. The present disclosure further relates to a NoC element such as a router or a bridge having input ports associated with input virtual channels, and output ports associated with output virtual channels, wherein, aspects of the present disclosure enable sizing of any or a combination of the width of the input virtual channel(s), width of the output virtual channel(s), buffer(s) associated with input virtual channels, and buffer(s) associated with output virtual channels. In another aspect, the sizing can be performed based on one or a combination of defined performance objectives, throughputs of the input virtual channels, and throughputs of the output virtual channels, load characteristics, bandwidth characteristics of each input/output channel, among other like parameters.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: January 2, 2018
    Assignee: NetSpeed Systems, Inc.
    Inventor: Sailesh Kumar
  • Patent number: 9829962
    Abstract: Aspects of the present disclosure relate to a method and system for hybrid and/or distributed implementation of generation and/or execution of power profile management instructions. An embodiment of the present disclosure provides a hardware element of a SoC/NoC that can be configured to generate and/or execute power profile management instructions using a hybrid combination of software and hardware, wherein the hardware element can be run in parallel with other hardware elements of the SoC/NoC to generate and execute power profile management instructions for different segments or regions of the SoC/NoC for efficient and safe working thereof.
    Type: Grant
    Filed: December 18, 2016
    Date of Patent: November 28, 2017
    Assignee: NetSpeed Systems, Inc.
    Inventors: Rimu Kaushal, Anup Gangwar, Vishnu Mohan Pusuluri, Sailesh Kumar