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1. 发明授权

US09026424B1 Emulation of multiple instruction sets 有权
标题翻译：仿真多个指令集
公开(公告)号：US09026424B1
公开(公告)日：2015-05-05
申请号：US12258487
申请日：2008-10-27
申请人： Jeffrey G. Libby , Jean-Marc Frailong , Sharada Yeluri , Jianhui Huang , John Keen , Rajesh Nair
发明人： Jeffrey G. Libby , Jean-Marc Frailong , Sharada Yeluri , Jianhui Huang , John Keen , Rajesh Nair
IPC分类号： G06F9/455 , G06F12/00 , G06F17/50
CPC分类号： G06F9/455 , G06F9/45504 , G06F12/00 , G06F17/50
摘要： A device may emulate target instructions by executing a first set of microinstructions, and may store a base address of a table that includes a microinstruction provided in a second set of microinstructions for emulating the target instructions. The device may also locate the microinstruction based on the stored base address, and emulate one of the target instructions by executing the microinstruction.
摘要翻译：设备可以通过执行第一组微指令来模拟目标指令，并且可以存储包括在第二组微指令中提供的用于模拟目标指令的微指令的表的基地址。设备还可以基于存储的基地址定位微指令，并且通过执行微指令来模拟目标指令之一。

2. 发明授权

US08520675B1 System and method for efficient packet replication 有权
标题翻译：高效的数据包复制的系统和方法
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
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L45/56 , H04L45/16 , H04L49/10 , H04L49/90
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。

3. 发明授权

US08332622B2 Branching to target address by adding value selected from programmable offset table to base address specified in branch instruction 有权
标题翻译：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。

4. 发明申请

US20110170546A1 LOGICAL SEPARATION AND ACCESSING OF DESCRIPTOR MEMORIES 审中-公开
标题翻译：逻辑分离和描述符记忆的访问
公开(公告)号：US20110170546A1
公开(公告)日：2011-07-14
申请号：US13072382
申请日：2011-03-25
申请人： Raymond Marcelino Manese Lim , Jeffrey G. Libby
发明人： Raymond Marcelino Manese Lim , Jeffrey G. Libby
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L45/60 , H04L49/3009 , H04L49/3072 , H04L49/602 , H04L2012/5665
摘要： A packet header processing engine includes a memory having a number of distinct portions for respectively storing different types of descriptor information for a header of a packet. A packet header processing unit includes a number of pointers corresponding to the number of distinct memory portions. The packet header processing unit is configured to retrieve the different types of descriptor information from the number of distinct memory portions and to generate header information from the different types of descriptor information.
摘要翻译：分组报头处理引擎包括具有多个不同部分的存储器，用于分别存储用于分组报头的不同类型的描述符信息。分组报头处理单元包括与不同存储器部分的数量相对应的多个指针。分组报头处理单元被配置为从不同的存储器部分的数量中检索不同类型的描述符信息，并且从不同类型的描述符信息生成报头信息。

5. 发明授权

US07289503B1 Systems and methods for efficient multicast handling 有权
标题翻译：用于高效多播处理的系统和方法
公开(公告)号：US07289503B1
公开(公告)日：2007-10-30
申请号：US10206999
申请日：2002-07-30
申请人： Pradeep Sindhu , Debashis Basu , Pankaj Patel , Raymond Lim , Avanindra Godbole , Tatao Chuang , Chi-Chung K. Chen , Jeffrey G. Libby , Dennis Ferguson , Philippe Lacroute , Gerald Cheung
发明人： Pradeep Sindhu , Debashis Basu , Pankaj Patel , Raymond Lim , Avanindra Godbole , Tatao Chuang , Chi-Chung K. Chen , Jeffrey G. Libby , Dennis Ferguson , Philippe Lacroute , Gerald Cheung
IPC分类号： H04L12/28
CPC分类号： H04L12/4633 , H04L12/66
摘要： A network device includes an interface and packet processing logic. The interface receives a multicast packet. The packet processing logic determines identifier data corresponding to the received multicast packet and replicates the identifier data to multiple outgoing packet forward engines at a first point in a processing path. The packet processing logic further replicates the identifier data to multiple data streams at a second point in the processing path and replicates the identifier data to multiple logical interfaces in the same stream at a third point in the processing path.
摘要翻译：网络设备包括接口和分组处理逻辑。接口收到组播报文。分组处理逻辑确定与所接收的多播分组相对应的标识符数据，并且在处理路径的第一点将标识符数据复制到多个输出分组转发引擎。分组处理逻辑还将标识符数据复制到处理路径中的第二点处的多个数据流，并且在处理路径中的第三点将标识符数据复制到同一流中的多个逻辑接口。

6. 发明授权

US08954409B1 Acquisition of multiple synchronization objects within a computing device 有权
标题翻译：在计算设备内获取多个同步对象
公开(公告)号：US08954409B1
公开(公告)日：2015-02-10
申请号：US13240259
申请日：2011-09-22
申请人： Oren Kerem , Jeffrey G. Libby , Deepak Goel , David J. Ofelt , Anurag P. Gupta
发明人： Oren Kerem , Jeffrey G. Libby , Deepak Goel , David J. Ofelt , Anurag P. Gupta
IPC分类号： G06F17/00
CPC分类号： G06F17/30949 , G06F17/30348
摘要： In general, techniques of the present disclosure relate to synchronizing concurrent access to multiple portions of a data structure. In one example, a method includes, sequentially selecting a plurality of requests from a request queue, wherein at least one of the requests specifies a plurality of requested synchronization objects for corresponding candidate portions of a data structure to which to apply an operation associated with a data element. The method also includes querying one or more sets of identifiers to determine whether one or more of the requested synchronizations objects specified by the selected request are acquirable. The method also includes acquiring each of the requested synchronization objects that are acquirable. The method includes, responsive to acquiring all of the one or more requested synchronization objects, selecting a subset of the candidate portions of the data structure and applying the operation only to the selected subset of the candidate portions.
摘要翻译：通常，本公开的技术涉及同步访问数据结构的多个部分。在一个示例中，一种方法包括：从请求队列顺序地选择多个请求，其中至少一个请求为数据结构的相应候选部分指定多个请求的同步对象，以应用与数据元素。该方法还包括查询一个或多个标识符集合以确定由所选择的请求指定的所请求的同步对象中的一个或多个是可获取的。该方法还包括获取可获取的所请求的同步对象中的每一个。该方法包括：响应于获取所有一个或多个所请求的同步对象，选择数据结构的候选部分的子集，并将该操作仅应用于所选择的候选部分的子集。

7. 发明授权

US08799909B1 System and method for independent synchronous and asynchronous transaction requests 有权
标题翻译：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
IPC分类号： G06F9/00 , G06F9/46
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。

8. 发明申请

US20110142070A1 SYSTEMS AND METHODS FOR HANDLING PACKET FRAGMENTATION 审中-公开
标题翻译：用于处理分组分段的系统和方法
公开(公告)号：US20110142070A1
公开(公告)日：2011-06-16
申请号：US13030852
申请日：2011-02-18
申请人： Raymond Marcelino Manese LIM , Jeffrey G. Libby
发明人： Raymond Marcelino Manese LIM , Jeffrey G. Libby
IPC分类号： H04J3/16
CPC分类号： H04L47/10 , H04L45/60 , H04L47/36 , H04L49/3009 , H04L49/3072 , H04L69/16 , H04L69/166
摘要： A packet header processing engine receives a header of a packet. The received header includes a size of the packet. A maximum transfer unit size of a destination interface of the packet may be determined. The packet header processing engine determines whether the size of the packet exceeds the maximum transfer unit size of the destination interface. If the size of the packet does not exceed the maximum transfer unit size of the destination interface, the packet header processing engine generates a new header from the received header. If the size of the packet exceeds the maximum transfer unit size of the destination interface, the packet header processing engine generates a fragment header from the received header. The packet header processing engine may recycle the fragment header for further processing in addition to forming a first fragment packet from the fragment header.
摘要翻译：分组报头处理引擎接收分组的报头。所接收的报头包括分组的大小。可以确定分组的目的地接口的最大传送单元大小。分组报头处理引擎确定分组的大小是否超过目的地接口的最大传送单元大小。如果分组的大小不超过目的地接口的最大传输单元大小，则分组报头处理引擎从接收的报头生成新的报头。如果分组的大小超过目的地接口的最大传输单元大小，则分组报头处理引擎从接收的报头生成分段报头。分组报头处理引擎除了从分段报头形成第一分段分组外，还可以回收用于进一步处理的分段报头。

9. 发明申请

US20100215046A1 LOGICAL SEPARATION AND ACCESSING OF DESCRIPTOR MEMORIES 失效
标题翻译：逻辑分离和描述符记忆的访问
公开(公告)号：US20100215046A1
公开(公告)日：2010-08-26
申请号：US12773494
申请日：2010-05-04
申请人： Raymond Marcelino Manese LIM , Jeffrey G. LIBBY
发明人： Raymond Marcelino Manese LIM , Jeffrey G. LIBBY
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L45/60 , H04L49/3009 , H04L49/3072 , H04L49/602 , H04L2012/5665
摘要： A packet header processing engine includes a memory having a number of distinct portions for respectively storing different types of descriptor information for a header of a packet. A packet header processing unit includes a number of pointers corresponding to the number of distinct memory portions. The packet header processing unit is configured to retrieve the different types of descriptor information from the number of distinct memory portions and to generate header information from the different types of descriptor information.
摘要翻译：分组报头处理引擎包括具有多个不同部分的存储器，用于分别存储用于分组报头的不同类型的描述符信息。分组报头处理单元包括与不同存储器部分的数量相对应的多个指针。分组报头处理单元被配置为从不同的存储器部分的数量中检索不同类型的描述符信息，并且从不同类型的描述符信息生成报头信息。

10. 发明授权

US07283528B1 On the fly header checksum processing using dedicated logic 有权
标题翻译：使用专用逻辑在飞行头校验和处理
公开(公告)号：US07283528B1
公开(公告)日：2007-10-16
申请号：US10102958
申请日：2002-03-22
申请人： Raymond Marcelino Manese Lim , Jeffrey G. Libby
发明人： Raymond Marcelino Manese Lim , Jeffrey G. Libby
IPC分类号： H04L12/56
CPC分类号： H04L1/0072 , H04L1/0061
摘要： A packet header processing engine includes a packet processing unit that is configured to generate the packet header information based on the packet header data. A checksum generating unit is connected to the packet processing unit. The checksum generating unit is configured to compute and store a partial checksum for a packet header being processed by the packet processing unit. After all packet header information for a packet is stored in the buffer, the checksum generating unit contains a complete checksum for the packet header.
摘要翻译：分组报头处理引擎包括分组处理单元，其被配置为基于分组报头数据生成分组报头信息。校验和生成单元连接到分组处理单元。校验和生成单元被配置为计算并存储由分组处理单元正在处理的分组报头的部分校验和。在分组的所有分组报头信息被存储在缓冲器中之后，校验和生成单元包含分组报头的完整校验和。

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