San Jose, CA, United States
San Jose, CA, United States

Cavium is a fabless semiconductor company based in San Jose, California specializing in ARM-based and MIPS-based network, video and security processors and SoCs. Cavium offers processor and board level products targeting routers, switches, appliances, storage and servers.The company went public in May 2007 with about 175 employees. As of 2011, following numerous acquisitions, it had about 850 employees worldwide, of whom about 250 were located at company headquarters in San Jose. Wikipedia.


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A new approach is proposed to offload of link aggregation from a host to a HBA in SRIOV mode. The HBA first creates one or more link aggregation offload engines each having one or more physical ports and to establish a first link between a VM running on the host and one of the link aggregation offload engines for network data transmission with the VM. Once a data packet is received from the VM over the first link, the link aggregation offload engine chooses a first physical port based on its link aggregation method and establish a second link with the chosen first physical port to transmit the packet out of the HBA. If the second link fails, the link aggregation offload engine then chooses a second physical ports and establish a third link with the chosen second physical port to transmit the packet out of the HBA device instead.


A new approach is proposed that contemplates systems and methods to support a mechanism to offload IPSec/IKE processing of virtual machines (VMs) running on a host to an embedded networking device, which serves as a hardware accelerator for the VMs that need to have secured communication with a remote device/server over a network. By utilizing a plurality of its software and hardware features, the embedded networking device is configured to perform all offloaded IPSec operations on data packets transferred between the host and the remote device over the network as required for the secured communication before the data packets can be transmitted over the network. The embedded networking device, in effect, acts as a proxy on behalf of the VMs running on the host to perform the offloaded IPSec operations as well as serving as the network interface for the secured communication between the VMs and the remote device.


An apparatus and method for queuing data to a memory buffer. The method includes selecting a queue from a plurality of queues; receiving a token of data from the selected queue and requesting, by a queue module, addresses and pointers from a buffer manager for addresses allocated by the buffer manager for storing the token of data. Subsequently, a memory list is accessed by the buffer manager and addresses and pointers are generated to allocated addresses in the memory list which comprises a plurality of linked memory lists for additional address allocation. The method further includes writing into the accessed memory list the pointers for the allocated address where the pointers link together allocated addresses; and migrating to other memory lists for additional address allocations upon receipt of subsequent tokens of data from the queue; and generating additional pointers linking together the allocated addresses in the other memory lists.


A new approach is proposed that contemplates systems and methods to support performing a live update or upgrade of a firmware of an embedded networking device to a successful completion without resetting the embedded networking device. For the live update or upgrade to the firmware of the embedded networking device, a new version of the firmware that includes new features/enhancements to improve the product functionality or fix bugs encountered in previous versions of the firmware is installed seamlessly on the embedded networking device to replace the current version of the firmware on one or more cores at a time. During the live firmware updating or upgrading process, various software applications running on other cores of the embedded networking device continue to perform packet processing operations without any interruption. The live firmware update process continues until all cores of the embedded networking device are updated with the newly updated/upgraded firmware.


Patent
Cavium | Date: 2016-06-24

A virtual system on chip (VSoC) is an implementation of a machine that allows for sharing of underlying physical machine resources between different virtual systems. A method or corresponding apparatus of the present invention relates to a device that includes a plurality of virtual systems on chip and a configuring unit. The configuring unit is arranged to configure resources on the device for the plurality of virtual systems on chip as a function of an identification tag assigned to each virtual system on chip.


A new approach is proposed that contemplates systems and methods to support a mechanism to offload all aspects of inline SSL processing of an application running on a server/host to an embedded networking device such as a Network Interface Card (NIC), which serves as a hardware accelerator for all applications running on the server that need to have a secure connection with a remote client device over a network. By utilizing a plurality of its software and hardware features, the embedded networking device is configured to process all SSL operations of the secure connection inline, i.e., the SSL operations are performed as packets are transferred between the host and the client over the network, rather than having the SSL operations offloaded to the NIC, which then returns the packets to the host (or the remote client device) before they can be transmitted to the remote client device (or to the host).


Embodiments of the present invention relate to a Lookup and Decision Engine (LDE) for generating lookup keys for input tokens and modifying the input tokens based on contents of lookup results. The input tokens are parsed from network packet headers by a Parser, and the tokens are then modified by the LDE. The modified tokens guide how corresponding network packets will be modified or forwarded by other components in a software-defined networking (SDN) system. The design of the LDE is highly flexible and protocol independent. Conditions and rules for generating lookup keys and for modifying tokens are fully programmable such that the LDE can perform a wide variety of reconfigurable network features and protocols in the SDN system.


Patent
Cavium | Date: 2016-05-03

In one embodiment, a system includes a format block configured to receive a key, at least one rule, and rule formatting information. The rule can have one or more dimensions. The format block can be further configured to extract each of the dimensions from the at least one rule. The system can further include a plurality of dimension matching engines (DME). Each DME can be configured to receive the key and a corresponding formatted dimension, and process the key and the corresponding dimension for returning a match or nomatch. The system can further include a post processing block configured to analyze the matches or no matches returned from the DMEs and return a response based on the returned matches or nomatches.


A software-defined network (SDN) system, device and method comprise one or more input ports, a programmable parser, a plurality of programmable lookup and decision engines (LDEs), programmable lookup memories, programmable counters, a programmable rewrite block and one or more output ports. The programmability of the parser, LDEs, lookup memories, counters and rewrite block enable a user to customize each microchip within the system to particular packet environments, data analysis needs, packet processing functions, and other functions as desired. Further, the same microchip is able to be reprogrammed for other purposes and/or optimizations dynamically.


A new approach is proposed that contemplates systems and methods to support elastic (extensible/flexible) storage access in real time by mapping a plurality of remote storage devices that are accessible over a network fabric as logical namespace(s) via a logic storage controller using a multitude of access mechanisms and storage network protocols. The logical storage controller exports and presents the remote storage devices to one or more VMs running on a host of the logical storage controller as the logical namespace(s), wherein these remote storage devices appear virtually as one or more logical volumes of a collection of logical blocks in the logical namespace(s) to the VMs. As a result, each of the VMs running on the host can access these remote storage devices to perform read/write operations as if they were local storage devices via the logical namespace(s).

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