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    SYSTEM AND METHOD FOR FACILITATING EFFICIENT PACKET FORWARDING IN A NETWORK INTERFACE CONTROLLER (NIC)
    1.
    发明申请
    SYSTEM AND METHOD FOR FACILITATING EFFICIENT PACKET FORWARDING IN A NETWORK INTERFACE CONTROLLER (NIC) 审中-公开

    公开(公告)号：WO2020236284A1

    公开(公告)日：2020-11-26

    申请号：PCT/US2020/024262

    申请日：2020-03-23

    Applicant: CRAY INC.

    Inventor： ALVERSON, Robert L. ,  KUNDU, Partha ,  ROWETH, Duncan ,  HEWSON, David Charles ,  CHENG, Albert

    IPC: H04L12/805 ,  H04L12/801 ,  H04L12/861 ,  G06F3/06

    Abstract: A network interface controller (NIC) capable of efficient packet forwarding is provided. The NIC can be equipped with a host interface, a packet generation logic block, and a forwarding logic block. During operation, the packet generation logic block can obtain, via the host interface, a message from the host device and for a remote device. The packet generation logic block may generate a plurality of packets for the remote device from the message. The forwarding logic block can then send a first subset of packets of the plurality of packets based on ordered delivery. If a first condition is met, the forwarding logic block can send a second subset of packets of the plurality of packets based on unordered delivery. Furthermore, if a second condition is met, the forwarding logic block can send a third subset of packets of the plurality of packets based on ordered delivery.

    SYSTEM AND METHOD FOR FACILITATING HYBRID MESSAGE MATCHING IN A NETWORK INTERFACE CONTROLLER (NIC)
    2.
    发明申请
    SYSTEM AND METHOD FOR FACILITATING HYBRID MESSAGE MATCHING IN A NETWORK INTERFACE CONTROLLER (NIC) 审中-公开

    公开(公告)号：WO2020236273A1

    公开(公告)日：2020-11-26

    申请号：PCT/US2020/024246

    申请日：2020-03-23

    Applicant: CRAY INC.

    Inventor： GORODETSKY, Igor ,  ROWETH, Duncan

    IPC: H04L12/835 ,  H04L12/801 ,  H04L12/861 ,  H04L12/851

    Abstract: A network interface controller (NIC) capable of hybrid message matching is provided. The NIC can be equipped with a host interface, a hardware endpoint, and an endpoint management logic block. The host interface can couple the NIC to a host device. The hardware endpoint can facilitate a point of communication for an application running on the host device. The endpoint management logic block can maintain a list for storing a message associated with an endpoint represented by the hardware endpoint. The endpoint management logic block can then determine whether the utilization of the list is higher than a threshold. If the utilization is higher than the threshold, the endpoint management logic block can set a state of the endpoint to indicate that the endpoint is software managed. The NIC thus can transfer the control of the endpoint from the hardware endpoint to a software process of the host device.

    OPTIMIZED ADAPTIVE ROUTING TO REDUCE NUMBER OF HOPS
    3.
    发明申请
    OPTIMIZED ADAPTIVE ROUTING TO REDUCE NUMBER OF HOPS 审中-公开

    公开(公告)号：WO2020236262A2

    公开(公告)日：2020-11-26

    申请号：PCT/US2020/024170

    申请日：2020-03-23

    Applicant: CRAY INC.

    Inventor： BATAINEH, Abdulla M. ,  FROESE, Edwin L. ,  ROWETH, Duncan

    IPC: H04L12/721

    Abstract: A switch is provided, which can receive a data communication at an edge of a network. The network may be made up of a plurality of switches. The switch may generate a flow channel based upon an identified source and destination for the data communication. The data communication can be routed across the plurality of switches based on minimizing a number of hops between a subset of the plurality of switches and in accordance with the flow channel.

    SYSTEM AND METHOD FOR FACILITATING DYNAMIC COMMAND MANAGEMENT IN A NETWORK INTERFACE CONTROLLER (NIC)
    4.
    发明申请
    SYSTEM AND METHOD FOR FACILITATING DYNAMIC COMMAND MANAGEMENT IN A NETWORK INTERFACE CONTROLLER (NIC) 审中-公开

    公开(公告)号：WO2020236275A1

    公开(公告)日：2020-11-26

    申请号：PCT/US2020/024250

    申请日：2020-03-23

    Applicant: CRAY INC.

    Inventor： ROWETH, Duncan ,  BATAINEH, Abdulla M. ,  FROESE, Edwin L.

    IPC: H04L12/937 ,  H04L12/861 ,  H04L12/863 ,  G06F13/16 ,  G11C7/10

    Abstract: A network interface controller (NIC) capable of efficient command management is provided. The NIC can be equipped with a host interface, an arbitration logic block, and a command management logic block. During operation, the host interface can couple the NIC to a host device. The arbitration logic block can select a command queue of the host device for obtaining a command. The command management logic block can determine whether an internal buffer associated with the command queue includes a command. If the internal buffer includes the command, the command management logic block can obtain the command from the internal buffer. On the other hand, if the internal buffer is empty, the command management logic block can obtain the command from the command queue via the host interface.

    SYSTEM AND METHOD FOR FACILITATING FINE-GRAIN FLOW CONTROL IN A NETWORK INTERFACE CONTROLLER (NIC)
    5.
    发明申请
    SYSTEM AND METHOD FOR FACILITATING FINE-GRAIN FLOW CONTROL IN A NETWORK INTERFACE CONTROLLER (NIC) 审中-公开

    公开(公告)号：WO2020236272A1

    公开(公告)日：2020-11-26

    申请号：PCT/US2020/024245

    申请日：2020-03-23

    Applicant: CRAY INC.

    Inventor： HEWSON, David Charles ,  BATAINEH, Abdulla M. ,  COURT, Thomas L. ,  ROWETH, Duncan

    IPC: H04L12/931 ,  H04L12/861 ,  H04L12/851 ,  H04L12/801

    Abstract: A network interface controller (NIC) capable of facilitating fine-grain flow control (FGFC) is provided. The NIC can be equipped with a network interface, an FGFC logic block, and a traffic management logic block. During operation, the network interface can determine that a control frame from a switch is associated with FGFC. The network interface can then identify a data flow indicated in the control frame for applying the FGFC. The FGFC logic block can insert information from the control frame into an entry of a data structure stored in the NIC. The traffic management logic block can identify the entry in the data structure based on one or more fields of a packet belonging to the flow. Subsequently, the traffic management logic block can determine whether the packet is allowed to be forwarded based on the information in the entry.

    SYSTEMS AND METHODS FOR PER TRAFFIC CLASS ROUTING
    6.
    发明申请
    SYSTEMS AND METHODS FOR PER TRAFFIC CLASS ROUTING 审中-公开

    公开(公告)号：WO2020236301A1

    公开(公告)日：2020-11-26

    申请号：PCT/US2020/024340

    申请日：2020-03-23

    Applicant: CRAY INC.

    Inventor： FORD, Anthony Michael ,  BEECROFT, Jonathan P. ,  ROWETH, Duncan ,  FROESE, Edwin L.

    IPC: H04L12/851 ,  H04L12/721 ,  H04L12/815 ,  H04L12/933 ,  H04L12/937

    Abstract: Systems and methods are described for providing per traffic class routing of data within a network. A network switch has the capability to classify traffic data based on High Performance Computing (HPC) related characteristics. Traffic classes are defined based on aspects of HPC, such as routing, ordering, redirection, quiesce, HPC protocol configuration, and telemetry. A switch can receive packets at an ingress port of a switch fabric, and determine traffic classifications for the packets. The traffic classification is selected from a group of defined traffic classes. Then, the switch can generate a fabric specific flag for the at least one packet that indicates the determined traffic classification, where the fabric specific flag is used for routing packets based on their assigned traffic classification. Examples of traffic classes include: low latency class; dedicated access class; bulk data class; best efforts class; and scavenger class.

    SYSTEMS AND METHODS FOR ADAPTIVE ROUTING IN THE PRESENCE OF PERSISTENT FLOWS
    8.
    发明申请
    SYSTEMS AND METHODS FOR ADAPTIVE ROUTING IN THE PRESENCE OF PERSISTENT FLOWS 审中-公开

    公开(公告)号：WO2020236293A1

    公开(公告)日：2020-11-26

    申请号：PCT/US2020/024303

    申请日：2020-03-23

    Applicant: CRAY INC.

    Inventor： ROWETH, Duncan

    IPC: H04L12/721 ,  H04L12/801 ,  H04L12/851 ,  H04L12/741 ,  H04L12/937

    Abstract: System and methods are described for providing adaptive routing in the presence of persistent flows. Switches in a fabric have the capability to establish flow channels. Switches can adaptively route flows, while monitoring transmission characteristics of the flows channels to identify whether any flows are experiencing congestion towards a destination. In response to detecting congestion, it can be further determined whether the flow is related to a source of congestion, or alternative the flow is a victim of congestion. Flows that are a source of congestion have their routing constrained to prevent congestion from propagating For example, new packets of a flow that is a source of congestion may be forced to only take the path of the data transmission that detected said congestion (preventing congestion from spreading). Alternatively, victims of congestion do not have their routing constrained, and packets can take any path as permitted by adaptive routing.

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