Checksum verification accelerator
    41.
    发明授权
    Checksum verification accelerator 失效
    校验和验证加速器

    公开(公告)号:US08726132B2

    公开(公告)日:2014-05-13

    申请号:US13302688

    申请日:2011-11-22

    IPC分类号: H03M13/00

    摘要: Disclosed is a method and system for validating a data packet by a network processor supporting a first network protocol and a second network protocol and utilizing shared hardware. The network processor receives a data packet; identifies a network packet protocol for the data packet; and processes the data packet according to the network packet protocol comprising: updating a first register with a first partial packet length specific to the first network protocol; updating a second register with a second partial packet length specific to the second network protocol; and updating a third register with a first checksum computed from fields independent of the network protocol. The system produces a second checksum utilizing a function that combines values from the first register, the second register, and the third register. The system validates the data packet by comparing the data packet checksum to the second checksum.

    摘要翻译: 公开了一种用于通过支持第一网络协议和第二网络协议的网络处理器来验证数据分组并利用共享硬件的方法和系统。 网络处理器接收数据包; 识别数据包的网络包协议; 并根据网络分组协议对数据分组进行处理,包括:以第一网络协议特有的第一部分分组长度更新第一寄存器; 用第二网络协议特有的第二部分分组长度更新第二寄存器; 以及用独立于网络协议的字段计算的具有第一校验和的更新第三寄存器。 该系统利用组合来自第一寄存器,第二寄存器和第三寄存器的值的函数产生第二校验和。 系统通过将数据包校验和与第二个校验和进行比较来验证数据包。

    Checksum verification accelerator
    42.
    发明授权
    Checksum verification accelerator 有权
    校验和验证加速器

    公开(公告)号:US08726134B2

    公开(公告)日:2014-05-13

    申请号:US13466940

    申请日:2012-05-08

    IPC分类号: H03M13/00

    摘要: Disclosed is a method for validating a data packet by a network processor supporting a first-network protocol and a second network protocol and utilizing shared hardware. The network processor receives a data packet; identifies a network packet protocol for the data packet; and processes the data packet according to the network packet protocol comprising: updating a first register with a first partial packet length specific to the first network protocol; updating a second register with a second partial packet length specific to the second network protocol; and updating a third register with a first checksum computed from fields independent of the network protocol. The method produces a second checksum utilizing a function that combines values from the first register, the second register, and the third register. The method validates the data packet by comparing the data packet checksum to the second checksum.

    摘要翻译: 公开了一种通过支持第一网络协议和第二网络协议的网络处理器来验证数据分组并利用共享硬件的方法。 网络处理器接收数据包; 识别数据包的网络包协议; 并根据网络分组协议对数据分组进行处理,包括:以第一网络协议特有的第一部分分组长度更新第一寄存器; 用第二网络协议特有的第二部分分组长度更新第二寄存器; 以及用独立于网络协议的字段计算的具有第一校验和的更新第三寄存器。 该方法利用组合来自第一寄存器,第二寄存器和第三寄存器的值的函数产生第二校验和。 该方法通过将数据包校验和与第二校验和进行比较来验证数据包。

    Selection of receive-queue based on packet attributes
    43.
    发明授权
    Selection of receive-queue based on packet attributes 失效
    基于分组属性选择接收队列

    公开(公告)号:US08675660B2

    公开(公告)日:2014-03-18

    申请号:US13466914

    申请日:2012-05-08

    CPC分类号: H04L47/6215

    摘要: According to embodiments of the invention, there is provided a method for operating a network processor. The network processor receiving a first data packet in a stream of data packets and a set of receive-queues adapted to store receive data packets. The network processor processing the first data packet by reading a flow identification in the first data packet; determining a quality of service for the first data packet; mapping the flow identification and the quality of service into an index for selecting a first receive-queue for routing the first data packet; and utilizing the index to route the first data packet to the first receive-queue.

    摘要翻译: 根据本发明的实施例,提供了一种用于操作网络处理器的方法。 网络处理器接收数据包流中的第一数据包和适于存储接收数据包的一组接收队列。 网络处理器通过读取第一数据分组中的流标识来处理第一数据分组; 确定第一数据分组的服务质量; 将流标识和服务质量映射到用于选择用于路由第一数据分组的第一接收队列的索引; 以及利用所述索引将所述第一数据分组路由到所述第一接收队列。

    Identification of QoS classification based on packet attributes
    44.
    发明授权
    Identification of QoS classification based on packet attributes 有权
    基于分组属性的QoS分类识别

    公开(公告)号:US08942095B2

    公开(公告)日:2015-01-27

    申请号:US13302489

    申请日:2011-11-22

    CPC分类号: H04L47/2441 H04L69/22

    摘要: A method, a system, and a computer program product is disclosed for identifying a quality of service (QoS) classification of a packet in a network by a network processor. The method comprising: providing a table wherein a priority value with a maximum of N values is used as an index into the table to retrieve a QoS classification having a maximum of M values with M less than N; receiving a data packet in a stream of data packets; extracting at least two priority indicator values from the packet; converting the at least two priority indicator values into a priority value; utilizing the priority value as an index into the table; extracting the entry in the table corresponding to the priority value as the QoS classification of the packet; and utilizing the QoS classification for subsequent processing of the data packet.

    摘要翻译: 公开了一种方法,系统和计算机程序产品,用于通过网络处理器来识别网络中的分组的服务质量(QoS)分类。 该方法包括:提供一个表,其中将具有最大N个值的优先级值用作表中的索引以检索具有M小于N的最大M个值的QoS分类; 在数据包流中接收数据包; 从分组中提取至少两个优先级指示符值; 将所述至少两个优先级指示符值转换为优先级值; 利用优先级值作为表中的索引; 提取对应于优先级值的表中的条目作为分组的QoS分类; 并利用QoS分类来对数据分组进行后续处理。

    CHECKSUM VERIFICATION ACCELERATOR
    45.
    发明申请
    CHECKSUM VERIFICATION ACCELERATOR 有权
    检查验证加速器

    公开(公告)号:US20120221928A1

    公开(公告)日:2012-08-30

    申请号:US13466940

    申请日:2012-05-08

    IPC分类号: H03M13/09 G06F11/10

    摘要: Disclosed a method for validating a data packet by a network processor supporting a first, network protocol and a second network protocol and utilizing shared hardware. The network processor receives a data packet: identities a network packet protocol for the data packet; and processes the data packet according to the network packet protocol comprising: updating a first register with a first partial packet length specific to the first network protocol; updating a second register with a second partial packet length specific to the second network protocol; and updating a third register with a first checksum computed from fields independent of the network protocol. The method produces a second checksum utilizing a function that combines values from the first register, the second register, and the third register. The method validates the data packet by comparing the data packet checksum to the second checksum.

    摘要翻译: 公开了一种通过支持第一网络协议和第二网络协议的网络处理器来验证数据分组并利用共享硬件的方法。 网络处理器接收数据包:识别数据包的网络包协议; 并根据网络分组协议对数据分组进行处理,包括:以第一网络协议特有的第一部分分组长度更新第一寄存器; 用第二网络协议特有的第二部分分组长度更新第二寄存器; 以及用独立于网络协议的字段计算的具有第一校验和的更新第三寄存器。 该方法利用组合来自第一寄存器,第二寄存器和第三寄存器的值的函数产生第二校验和。 该方法通过将数据包校验和与第二校验和进行比较来验证数据包。

    Assigning Work From Multiple Sources to Multiple Sinks Given Assignment Constraints
    46.
    发明申请
    Assigning Work From Multiple Sources to Multiple Sinks Given Assignment Constraints 失效
    将工作从多个源分配给多个接收器给定分配约束

    公开(公告)号:US20110158250A1

    公开(公告)日:2011-06-30

    申请号:US12650120

    申请日:2009-12-30

    IPC分类号: H04L12/56

    CPC分类号: H04L49/9047

    摘要: A method and apparatus for assigning work, such as data packets, from a plurality of sources, such as data queues in a network processing device, to a plurality of sinks, such as processor threads in the network processing device. In a given processing period, sinks that are available to receive work are identified and sources qualified to send work to the available sinks are determined taking into account any assignment constraints. A single source is selected from an overlap of the qualified sources and sources having work available. This selection may be made using a hierarchical source scheduler for processing subsets of supported sources simultaneously in parallel. A sink to which work from the selected source may be assigned is selected from available sinks qualified to receive work from the selected source.

    摘要翻译: 一种用于从多个源(例如网络处理设备中的数据队列)将诸如数据分组的工作分配给诸如网络处理设备中的处理器线程的多个接收器的方法和装置。 在给定的处理期间,确定可用于接收工作的接收器,并且考虑到任何分配约束来确定用于将工作发送到可用接收器的资源。 从具有可用工作的合格来源和源的重叠中选择单个来源。 可以使用用于并行同时处理所支持的源的子集的分级源调度器来进行该选择。 从可选择的来源可以分配工作的接收端从有资格从所选源接收工作的可用接收器中选择。

    Assigning work from multiple sources to multiple sinks given assignment constraints
    47.
    发明授权
    Assigning work from multiple sources to multiple sinks given assignment constraints 失效
    给定分配约束将工作从多个源分配给多个汇点

    公开(公告)号:US08532129B2

    公开(公告)日:2013-09-10

    申请号:US12650120

    申请日:2009-12-30

    IPC分类号: H04L12/28

    CPC分类号: H04L49/9047

    摘要: Assigning work, such as data packets, from a plurality of sources, such as data queues in a network processing device, to a plurality of sinks, such as processor threads in the network processing device is provided. In a given processing period, sinks that are available to receive work are identified and sources qualified to send work to the available sinks are determined taking into account any assignment constraints. A single source is selected from an overlap of the qualified sources and sources having work available. This selection may be made using a hierarchical source scheduler for processing subsets of supported sources simultaneously in parallel. A sink to which work from the selected source may be assigned is selected from available sinks qualified to receive work from the selected source.

    摘要翻译: 提供了诸如数据分组的工作,诸如诸如网络处理设备中的数据队列的多个源到网络处理设备中的诸如处理器线程的多个接收器。 在给定的处理期间,确定可用于接收工作的接收器,并且考虑到任何分配约束来确定用于将工作发送到可用接收器的资源。 从具有可用工作的合格来源和源的重叠中选择单个来源。 可以使用用于并行同时处理所支持的源的子集的分级源调度器来进行该选择。 从可选择的来源可以分配工作的接收端从有资格从所选源接收工作的可用接收器中选择。