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公开(公告)号：US08793358B1
公开(公告)日：2014-07-29
申请号：US13112933
申请日：2011-05-20
IPC分类号： G06F15/173
CPC分类号： H04L45/40
摘要： In general, techniques are described for flexible packet processing. A network device for processing a data packet comprise a packet processing engine and a special handling unit external from the packet processing engine. The packet processing engine includes one or more of a plurality of pipelined packet processing units that, when processing the data packet, generate one or more events and determine whether to associate a trap and/or a sampling class with the data packet based on the generated events. The pipelined packet processing units then set bits of a vector that is passed between the pipelined packet processing units to associate the packet with the determined trap and/or sampling class, and processes the packet based on the set one or more bits of the vector.
摘要翻译： 通常，描述了用于灵活分组处理的技术。 用于处理数据分组的网络设备包括分组处理引擎和来自分组处理引擎的外部的特殊处理单元。 分组处理引擎包括多个流水线分组处理单元中的一个或多个，当处理数据分组时，生成一个或多个事件并且基于所生成的数据分组确定是否将陷阱和/或采样分类与数据分组相关联 事件 流水线分组处理单元然后设置在流水线分组处理单元之间传递的向量的比特，以将分组与所确定的陷阱和/或采样类相关联，并且基于向量的设置的一个或多个比特来处理该分组。
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12.发明申请公开(公告)号：US20120084534A1
公开(公告)日：2012-04-05
申请号：US13323358
申请日：2011-12-12
申请人： Anurag P. GUPTA , John Keen , Jeffrey G. Libby , Jean-Marc Frailong , Avanindra Godbole , Sharida Yeluri
发明人： Anurag P. GUPTA , John Keen , Jeffrey G. Libby , Jean-Marc Frailong , Avanindra Godbole , Sharida Yeluri
CPC分类号： G06F9/30058 , G06F9/262 , G06F9/3885
摘要： Methods and systems consistent with the present invention provide a programmable table which allows software to define a plurality of branching functions, each of which maps a vector of condition codes to a branch offset. This technique allows for a flexible multi-way branching functionality, using a conditional branch outcome table that can be specified by a programmer. Any instruction can specify the evaluation of arbitrary conditional expressions to compute the values for the condition codes, and can choose a particular branching function. When the processor executes the instruction, the processor's arithmetic/logical functional units evaluate the conditional expressions and then the processor performs the branch operation, according to the specified branching function.
摘要翻译： 与本发明一致的方法和系统提供了可编程表，其允许软件定义多个分支功能，每个分支功能将条件代码的向量映射到分支偏移。 该技术允许灵活的多路分支功能，使用可由程序员指定的条件分支结果表。 任何指令都可以指定任意条件表达式的计算，以计算条件代码的值，并可以选择特定的分支函数。 当处理器执行指令时，处理器的算术/逻辑功能单元评估条件表达式，然后处理器根据指定的分支函数执行分支操作。
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13.发明授权Fast execution of branch instruction with multiple conditional expressions using programmable branch offset table 有权使用可编程分支偏移表快速执行具有多个条件表达式的分支指令公开(公告)号：US08078849B2
公开(公告)日：2011-12-13
申请号：US12342851
申请日：2008-12-23
申请人： Jeffrey G. Libby , Jean-Marc Frailong , Anurag P. Gupta , John Keen , Avanindra Godbole , Sharada Yeluri
发明人： Jeffrey G. Libby , Jean-Marc Frailong , Anurag P. Gupta , John Keen , Avanindra Godbole , Sharada Yeluri
IPC分类号： G06F9/32
CPC分类号： G06F9/30058 , G06F9/262 , G06F9/3885
摘要： Methods and systems consistent with the present invention provide a programmable table which allows software to define a plurality of branching functions, each of which maps a vector of condition codes to a branch offset. This technique allows for a flexible multi-way branching functionality, using a conditional branch outcome table that can be specified by a programmer. Any instruction can specify the evaluation of arbitrary conditional expressions to compute the values for the condition codes, and can choose a particular branching function. When the processor executes the instruction, the processor's arithmetic/logical functional units evaluate the conditional expressions and then the processor performs the branch operation, according to the specified branching function.
摘要翻译： 与本发明一致的方法和系统提供了可编程表，其允许软件定义多个分支功能，每个分支功能将条件代码的向量映射到分支偏移。 该技术允许灵活的多路分支功能，使用可由程序员指定的条件分支结果表。 任何指令都可以指定任意条件表达式的计算，以计算条件代码的值，并可以选择特定的分支函数。 当处理器执行指令时，处理器的算术/逻辑功能单元评估条件表达式，然后处理器根据指定的分支函数执行分支操作。
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公开(公告)号：US08520675B1
公开(公告)日：2013-08-27
申请号：US12343276
申请日：2008-12-23
申请人： Jean-Marc Frailong , Jeffrey G. Libby , Anurag P. Gupta , John Keen , Rajesh Nair , Avanindra Godbole , Sharada Yeluri
发明人： Jean-Marc Frailong , Jeffrey G. Libby , Anurag P. Gupta , John Keen , Rajesh Nair , Avanindra Godbole , Sharada Yeluri
摘要： Methods and systems consistent with the present invention provide efficient packet replication in a router in order to multicast a stream of data. Packets are replicated and processed in a multithreaded environment. Embodiments consistent with the present invention implement a two-stage process for packet replication. The first stage thread will recirculate the packet to multiple second-stage threads. These second-stage threads will then create one or more outgoing copies of the packet. In this way, the copies are handled by multiple threads running in parallel.
摘要翻译： 与本发明一致的方法和系统在路由器中提供有效的分组复制以便多播数据流。 数据包在多线程环境中进行复制和处理。 与本发明一致的实施例实现了用于分组复制的两阶段过程。 第一级线程将数据包循环到多个第二级线程。 这些第二级线程将会创建一个或多个数据包的输出副本。 以这种方式，副本由并行运行的多个线程处理。
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15.发明授权Branching to target address by adding value selected from programmable offset table to base address specified in branch instruction 有权通过将从可编程偏移表中选择的值添加到分支指令中指定的基址来分支到目标地址公开(公告)号：US08332622B2
公开(公告)日：2012-12-11
申请号：US13323358
申请日：2011-12-12
申请人： Anurag P Gupta , John Keen , Jeffrey G Libby , Jean-Marc Frailong , Avanindra Godbole , Sharada Yeluri
发明人： Anurag P Gupta , John Keen , Jeffrey G Libby , Jean-Marc Frailong , Avanindra Godbole , Sharada Yeluri
IPC分类号： G06F9/32
CPC分类号： G06F9/30058 , G06F9/262 , G06F9/3885
摘要： Methods and systems consistent with the present invention provide a programmable table which allows software to define a plurality of branching functions, each of which maps a vector of condition codes to a branch offset. This technique allows for a flexible multi-way branching functionality, using a conditional branch outcome table that can be specified by a programmer. Any instruction can specify the evaluation of arbitrary conditional expressions to compute the values for the condition codes, and can choose a particular branching function. When the processor executes the instruction, the processor's arithmetic/logical functional units evaluate the conditional expressions and then the processor performs the branch operation, according to the specified branching function.
摘要翻译： 与本发明一致的方法和系统提供了可编程表，其允许软件定义多个分支功能，每个分支功能将条件代码的向量映射到分支偏移。 该技术允许灵活的多路分支功能，使用可由程序员指定的条件分支结果表。 任何指令都可以指定任意条件表达式的计算，以计算条件代码的值，并可以选择特定的分支函数。 当处理器执行指令时，处理器的算术/逻辑功能单元评估条件表达式，然后处理器根据指定的分支函数执行分支操作。
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16.发明申请公开(公告)号：US20100161949A1
公开(公告)日：2010-06-24
申请号：US12342851
申请日：2008-12-23
申请人： Anurag P. Gupta , John Keen , Jeffrey G. Libby , Jean-Marc Frailong , Avanindra Godbole , Sharada Yeluri
发明人： Anurag P. Gupta , John Keen , Jeffrey G. Libby , Jean-Marc Frailong , Avanindra Godbole , Sharada Yeluri
IPC分类号： G06F9/38
CPC分类号： G06F9/30058 , G06F9/262 , G06F9/3885
摘要： Methods and systems consistent with the present invention provide a programmable table which allows software to define a plurality of branching functions, each of which maps a vector of condition codes to a branch offset. This technique allows for a flexible multi-way branching functionality, using a conditional branch outcome table that can be specified by a programmer. Any instruction can specify the evaluation of arbitrary conditional expressions to compute the values for the condition codes, and can choose a particular branching function. When the processor executes the instruction, the processor's arithmetic/logical functional units evaluate the conditional expressions and then the processor performs the branch operation, according to the specified branching function.
摘要翻译： 与本发明一致的方法和系统提供了可编程表，其允许软件定义多个分支功能，每个分支功能将条件代码的向量映射到分支偏移。 该技术允许灵活的多路分支功能，使用可由程序员指定的条件分支结果表。 任何指令都可以指定任意条件表达式的计算，以计算条件代码的值，并可以选择特定的分支函数。 当处理器执行指令时，处理器的算术/逻辑功能单元评估条件表达式，然后处理器根据指定的分支函数执行分支操作。
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17.发明授权System and method for independent synchronous and asynchronous transaction requests 有权用于独立同步和异步事务请求的系统和方法公开(公告)号：US08799909B1
公开(公告)日：2014-08-05
申请号：US12342985
申请日：2008-12-23
申请人： Jeffrey G. Libby , Jean-Marc Frailong , Avanindra Godbole , Sharada Yeluri , Anurag P. Gupta , John Keen
发明人： Jeffrey G. Libby , Jean-Marc Frailong , Avanindra Godbole , Sharada Yeluri , Anurag P. Gupta , John Keen
CPC分类号： G06F9/466 , G06F9/3004 , G06F9/30087 , G06F9/3009
摘要： Systems and methods of various embodiments provide mechanisms to support synchronous and asynchronous transactions. Distinct encodings allow an instruction to choose whether to perform any operation synchronously or asynchronously. Separate synchronous and asynchronous result registers hold the data returned in the most recent replies received for synchronous and asynchronous transaction requests, respectively. A status bit indicates whether an asynchronous transaction request is currently outstanding.
摘要翻译： 各种实施例的系统和方法提供了支持同步和异步事务的机制。 不同的编码允许指令选择是同步还是异步执行任何操作。 单独的同步和异步结果寄存器分别保存在同步和异步事务请求中接收的最近的回复中返回的数据。 状态位指示异步事务请求当前是否未完成。
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公开(公告)号：US09847953B2
公开(公告)日：2017-12-19
申请号：US12495364
申请日：2009-06-30
IPC分类号： H04L12/28 , H04L12/931 , H04L12/933 , H04L12/947
CPC分类号： H04L49/35 , H04L49/00 , H04L49/1515 , H04L49/251 , H04L49/356 , H04L49/70
摘要： In one embodiment, an apparatus includes a switch core that has a multi-stage switch fabric. A first set of peripheral processing devices coupled to the multi-stage switch fabric by a set of connections that have a protocol. Each peripheral processing device from the first set of peripheral processing devices is a storage node that has virtualized resources. The virtualized resources of the first set of peripheral processing devices collectively define a virtual storage resource interconnected by the switch core. A second set of peripheral processing devices coupled to the multi-stage switch fabric by a set of connections that have the protocol. Each peripheral processing device from the first set of peripheral processing devices is a compute node that has virtualized resources. The virtualized resources of the second set of peripheral processing devices collectively define a virtual compute resource interconnected by the switch core.
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19.发明授权Methods and apparatus for transmission of groups of cells via a switch fabric 有权用于经由交换结构传输小区组的方法和装置公开(公告)号：US08325749B2
公开(公告)日：2012-12-04
申请号：US12343728
申请日：2008-12-24
申请人： Sarin Thomas , Srihari Vegesna , Pradeep Sindhu , Chi-Chung Kenny Chen , Jean-Marc Frailong , David J. Ofelt , Philip A. Thomas , Chang-Hong Wu
发明人： Sarin Thomas , Srihari Vegesna , Pradeep Sindhu , Chi-Chung Kenny Chen , Jean-Marc Frailong , David J. Ofelt , Philip A. Thomas , Chang-Hong Wu
IPC分类号： H04L12/28
CPC分类号： H04J3/00 , H04L49/251 , H04L49/254
摘要： In one embodiment, a method can include receiving at an egress schedule module a request to schedule transmission of a group of cells from an ingress queue through a switch fabric of a multi-stage switch. The ingress queue can be associated with an ingress stage of the multi-stage switch. The egress schedule module can be associated with an egress stage of the multi-stage switch. The method can also include determining, in response to the request, that an egress port at the egress stage of the multi-stage switch is available to transmit the group of cells from the multi-stage switch.
摘要翻译： 在一个实施例中，一种方法可以包括在出口调度模块处接收通过多级交换机的交换结构调度来自进入队列的小区的传输的请求。 入站队列可以与多级交换机的进入级相关联。 出口调度模块可以与多级交换机的出口级相关联。 该方法还可以包括响应于该请求确定多级交换机的出口级的出口端口可用于从多级交换机发送小区组。
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20.发明授权Forwarding plane configuration for separation of services and forwarding in an integrated services router 有权转发平面配置，用于在综合业务路由器中分离业务和转发公开(公告)号：US08300532B1
公开(公告)日：2012-10-30
申请号：US12235677
申请日：2008-09-23
申请人： Anjan Venkatramani , Kannan Varadhan , Jean-Marc Frailong , Sanjay Gupta , Linda Sun , Sankar Ramamoorthi , Pradeep Sindhu , Anand S. Athreya , Chih-Wei Chao , Shuhua Ge
发明人： Anjan Venkatramani , Kannan Varadhan , Jean-Marc Frailong , Sanjay Gupta , Linda Sun , Sankar Ramamoorthi , Pradeep Sindhu , Anand S. Athreya , Chih-Wei Chao , Shuhua Ge
CPC分类号： H04L45/306 , H04L45/38
摘要： A method may include receiving a packet at an ingress line interface in a forwarding plane of a network element, the packet including header information. The method may also include conducting a flow table lookup in the forwarding plane to identify an existing flow for the packet and determining, in the forwarding plane and based on the header information, whether a predicted flow can be identified for the packet if an existing flow can not be identified. The method may further include performing a service access control list (ACL) lookup in the forwarding plane if a predicted flow can not be identified; and forwarding the packet to one of a services plane or an egress line interface in the forwarding plane based on one of the existing flow, the predicted flow, or the service ACL lookup.
摘要翻译： 方法可以包括在网元的转发平面中的入口线路接口处接收分组，该分组包括报头信息。 该方法还可以包括在转发平面中进行流表查找以识别分组的现有流，并且在转发平面中并且基于报头信息来确定是否可以为分组识别预测流，如果现有流 无法识别。 该方法还可以包括如果不能识别预测流，则在转发平面中执行服务访问控制列表（ACL）查找; 以及基于现有流，预测流或服务ACL查找之一将分组转发到转发平面中的服务平面或出口线路接口之一。
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