ANAMOLY DETECTION SYSTEM FOR PERIPHERAL COMPONENT INTERCONNECT EXPRESS

    公开(公告)号:US20230056018A1

    公开(公告)日:2023-02-23

    申请号:US17408942

    申请日:2021-08-23

    Abstract: A traffic anomaly detector of a Peripheral Component Interconnect express (PCIe) system, including filters configured to filter headers of PCIe transaction layer packets (TLPs) based on respective filter criterion; a classifier configured to trigger an event based on one of the filter criterion or a logical combination of a plurality of the filter criteria; an event counter configured to count a number of the events; and a processor configured to detect, based on a value of the event counter, an anomaly in the PCIe TLP traffic.

    APPARATUS AND METHOD FOR HANDLING AN INCOMING COMMUNICATION DATA FRAME

    公开(公告)号:US20210376954A1

    公开(公告)日:2021-12-02

    申请号:US17333365

    申请日:2021-05-28

    Abstract: An apparatus for handling an incoming communication data frame containing a plurality of bits is provided. The apparatus may include a plurality of data matchers, each data matcher configured to compare a subset of the plurality of bits of the communication data frame with a predetermined data pattern of a plurality of data patterns and to provide a data matcher output to indicate the result of the data matcher comparison, a plurality of selectors, each selector configured to compare a subset of the data matcher outputs of the plurality of data matchers with a predetermined selection pattern of a plurality of selection patterns and to provide a selector output to indicate the result of the selector comparison, and a frame filter configured to transfer the incoming frame to application logic only if the selector outputs of the plurality of selectors match a predetermined filter pattern, and to also transfer the selector outputs of the plurality of selectors to the application logic.

    CONDITIONAL LINKS FOR DIRECT MEMORY ACCESS CONTROLLERS
    15.
    发明申请
    CONDITIONAL LINKS FOR DIRECT MEMORY ACCESS CONTROLLERS 有权
    直接存储器访问控制器的条件链接

    公开(公告)号:US20140281098A1

    公开(公告)日:2014-09-18

    申请号:US13803811

    申请日:2013-03-14

    CPC classification number: G06F13/28

    Abstract: Some embodiments relate to a Direct Memory Access (DMA) controller. The DMA controller includes a bus controller having a system bus interface and configured to read a pattern from a memory location via the system bus interface. Pattern comparison logic compares the read pattern to at least one predetermined pattern. Control logic induces the bus controller to process a first conditional link over the system bus interface if the read pattern differs from the predetermined pattern, and induces the bus controller to process a second conditional link over the system bus interface if the read pattern differs from the predetermined pattern.

    Abstract translation: 一些实施例涉及直接存储器访问(DMA)控制器。 DMA控制器包括具有系统总线接口并被配置为经由系统总线接口从存储器位置读取模式的总线控制器。 图案比较逻辑将读取图案与至少一个预定图案进行比较。 如果读取模式与预定模式不同,则控制逻辑引起总线控制器处理系统总线接口上的第一条件链接,并且如果读取模式与系统总线接口不同,则总线控制器通过系统总线接口处理第二条件链接 预定模式。

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