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1. 发明申请

US20160292091A1 PACKET PROCESSING SYSTEM, METHOD AND DEVICE UTILIZING A PORT CLIENT CHAIN 有权
标题翻译：分组处理系统，使用端口客户端链的方法和设备
公开(公告)号：US20160292091A1
公开(公告)日：2016-10-06
申请号：US14673828
申请日：2015-03-30
申请人： XPLIANT, Inc.
发明人： Enrique Musoll , Tsahi Daniel
IPC分类号： G06F13/16 , G06F13/40
CPC分类号： G06F13/1663 , G06F13/161 , G06F13/1673 , G06F13/4022 , H04L45/126 , H04L49/9005
摘要： A packet processing system having each of a plurality of hierarchical clients and a packet memory arbiter serially communicatively coupled together via a plurality of primary interfaces thereby forming a unidirectional client chain. This chain is then able to be utilized by all of the hierarchical clients to write the packet data to or read the packet data from the packet memory.
摘要翻译：具有多个分级客户机中的每一个的分组处理系统和经由多个主接口串行通信地耦合在一起的分组存储器仲裁器，从而形成单向客户端链。然后，该链可以被所有层级客户端利用来将分组数据写入或从分组存储器读取分组数据。

2. 发明申请

US20160087809A1 HIERARCHICAL HARDWARE LINKED LIST APPROACH FOR MULTICAST REPLICATION ENGINE IN A NETWORK ASIC 有权
标题翻译：网络ASIC中多媒体复用引擎的分层硬件链接列表方法
公开(公告)号：US20160087809A1
公开(公告)日：2016-03-24
申请号：US14494168
申请日：2014-09-23
申请人： XPLIANT, Inc
发明人： Gerald Schmidt , Harish Krishnamoorthy , Tsahi Daniel
IPC分类号： H04L12/18 , H04L12/883 , H04L12/933 , H04L12/715 , G06F17/30 , H04L29/08
CPC分类号： H04L45/04 , G06F17/30575 , G06F17/30958 , G06F2205/064 , H04L12/1854 , H04L12/1886 , H04L49/109 , H04L49/201 , H04L49/9015 , H04L67/1095
摘要： A multicast rule is represented in a hierarchical linked list with N tiers. Each tier or level in the hierarchical linked list corresponds to a network layer of a network stack that requires replication. Redundant groups in each tier are eliminated such that the groups in each tier are stored exactly once in a replication table. A multicast replication engine traverses the hierarchical linked list and replicates a packet according to each node in the hierarchical linked list.
摘要翻译：组播规则在具有N个层的分层链表中表示。分层链表中的每个层或层级对应于需要复制的网络堆栈的网络层。消除每个层中的冗余组，使每个层中的组在复制表中保存一次。组播复制引擎遍历分层链表，并根据分层链表中的每个节点复制数据包。

3. 发明授权

US09262369B1 Apparatus and method for accelerated page link list processing in a packet processor operating at wirespeed 有权
公开(公告)号：US09262369B1
公开(公告)日：2016-02-16
申请号：US14676791
申请日：2015-04-01
申请人： Xpliant, Inc.
发明人： Tsahi Daniel , Enric Musoll , Dan Tu , Sridevi Polasanapalli
IPC分类号： G06F13/28 , G06F15/167 , H04L12/825
CPC分类号： G06F15/167 , G06F3/0611 , H04L47/25 , H04L49/90 , H04L49/9094
摘要： A packet processor has a packet memory manager configured to store a page walk link list, receive a descriptor and initiate a page walk through the page walk link list in response to the descriptor and without a prompt from transmit direct memory access circuitry. The packet memory manager is configured to receive an indicator of a single page packet and read a new packet in response to the indicator without waiting to obtain page state associated with the page of the single page packet.

4. 发明申请

US20150373166A1 METHOD OF IDENTIFYING INTERNAL DESTINATIONS OF NETWORK PACKETS AND AN APPARATUS THEREOF 有权
标题翻译：识别网络分组的内部目的地的方法及其装置
公开(公告)号：US20150373166A1
公开(公告)日：2015-12-24
申请号：US14309802
申请日：2014-06-19
申请人： XPLIANT, Inc.
发明人： Vishal Anand , Tsahi Daniel , Gerald Schmidt , Premshanth Theivendran
IPC分类号： H04L29/06 , H04L12/741
CPC分类号： H04L45/745 , H04L45/7453 , H04L45/7457 , H04L69/161 , H04L69/22
摘要： Embodiments of the apparatus of identifying internal destinations of network packets relate to a network chip that allows flexibility in handling packets. The handling of packets can be a function of what the packet contents are or where the packets are from. The handling of packets can also be a function of both what the packet contents are and where the packets are from. In some embodiments, where the packets are from refers to unique port numbers of chip ports that the packets arrived at. The packets can be distributed for processing within the network chip.
摘要翻译：识别网络分组的内部目的地的装置的实施例涉及允许处理分组的灵活性的网络芯片。分组的处理可以是分组内容是什么或分组来自哪里的功能。分组的处理也可以是分组内容和分组来自哪里的功能。在一些实施例中，分组来自的是指分组到达的芯片端口的唯一端口号。分组可以分布在网络芯片内进行处理。

5. 发明申请

US20150186516A1 APPARATUS AND METHOD OF GENERATING LOOKUPS AND MAKING DECISIONS FOR PACKET MODIFYING AND FORWARDING IN A SOFTWARE-DEFINED NETWORK ENGINE 有权
标题翻译：在软件定义的网络引擎中生成查询和制作分组修改和转发决策的装置和方法
公开(公告)号：US20150186516A1
公开(公告)日：2015-07-02
申请号：US14144270
申请日：2013-12-30
申请人： XPLIANT, INC.
发明人： Anh T. Tran , Gerald Schmidt , Tsahi Daniel , Harish Krishnamoorthy
IPC分类号： G06F17/30
CPC分类号： H04L45/745 , G06F17/30 , G06F17/30321 , G06F17/30339 , G06F17/30867 , H04L45/00 , H04L45/74
摘要： 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.
摘要翻译：本发明的实施例涉及一种用于生成用于输入令牌的查找密钥并基于查找结果的内容修改输入令牌的查找和决策引擎（LDE）。输入令牌由解析器从网络数据包头解析，令牌由LDE修改。修改的令牌指导如何在软件定义网络（SDN）系统中由其他组件修改或转发相应的网络数据包。 LDE的设计非常灵活，与协议无关。用于生成查找键和修改令牌的条件和规则是完全可编程的，使得LDE可以在SDN系统中执行各种可重新配置的网络特征和协议。

6. 发明授权

US09379963B2 Apparatus and method of generating lookups and making decisions for packet modifying and forwarding in a software-defined network engine 有权
标题翻译：在软件定义的网络引擎中产生查找和做出分组修改和转发的决策的装置和方法
公开(公告)号：US09379963B2
公开(公告)日：2016-06-28
申请号：US14144270
申请日：2013-12-30
申请人： XPLIANT, INC.
发明人： Anh T. Tran , Gerald Schmidt , Tsahi Daniel , Harish Krishnamoorthy
IPC分类号： G06F17/00 , H04L12/701 , G06F17/30 , H04L12/741
CPC分类号： H04L45/745 , G06F17/30 , G06F17/30321 , G06F17/30339 , G06F17/30867 , H04L45/00 , H04L45/74
摘要： 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.
摘要翻译：本发明的实施例涉及一种用于生成用于输入令牌的查找密钥并基于查找结果的内容修改输入令牌的查找和决策引擎（LDE）。输入令牌由解析器从网络数据包头解析，令牌由LDE修改。修改的令牌指导如何在软件定义网络（SDN）系统中由其他组件修改或转发相应的网络数据包。 LDE的设计非常灵活，与协议无关。用于生成查找键和修改令牌的条件和规则是完全可编程的，使得LDE可以在SDN系统中执行各种可重新配置的网络特征和协议。

7. 发明申请

US20150373164A1 METHOD OF FORMING A HASH INPUT FROM PACKET CONTENTS AND AN APPARATUS THEREOF 有权
标题翻译：从分组内容形成HASH输入的方法及其装置
公开(公告)号：US20150373164A1
公开(公告)日：2015-12-24
申请号：US14309739
申请日：2014-06-19
申请人： XPLIANT, Inc
发明人： Vishal Anand , Tsahi Daniel , Gerald Schmidt
IPC分类号： H04L29/06 , H04L29/08
CPC分类号： H04L69/22 , H04L49/00 , H04L69/324
摘要： Embodiments of the apparatus for forming a hash input from packet contents relate to a programmable flexible solution to form hash inputs, allowing for hardware changes and for adding support for newer protocols as and when they are defined in the future. A packet is split into individual layers. Each layer is given a unique layer type number that helps identify what that layer is. Based on the layer type, each layer is expanded to a generic format. Each layer has a set of hash commands that is generic to that layer. Fields of each hash command are fieldOffset, fieldLen, hashMask, and hashMaskMSB. These hash commands allow information in the packet to be extracted in a programmable manner. The fields extracted from each protocol layer of the packet are concatenated to form a hash layer. A bit vector indicates which hash layers are used to form the hash input.
摘要翻译：用于从分组内容形成哈希输入的装置的实施例涉及可编程灵活的解决方案，以形成哈希输入，允许硬件改变，并且在将来定义时更新对较新协议的支持。数据包被分割成单独的层。每个层都有一个唯一的层类型数字，可帮助识别该层。基于层类型，每层都扩展为通用格式。每个层都有一组与该层通用的哈希命令。每个哈希命令的字段是fieldOffset，fieldLen，hashMask和hashMaskMSB。这些散列命令允许以可编程的方式提取分组中的信息。从分组的每个协议层提取的字段被级联以形成散列层。位向量指示哪些散列层用于形成散列输入。

8. 发明申请

US20150373156A1 METHOD OF USING A UNIQUE PACKET IDENTIFIER TO IDENTIFY STRUCTURE OF A PACKET AND AN APPARATUS THEREOF 有权
标题翻译：使用独特的分组标识符识别分组结构的方法及其装置
公开(公告)号：US20150373156A1
公开(公告)日：2015-12-24
申请号：US14309633
申请日：2014-06-19
申请人： XPLIANT, Inc.
发明人： Chirinjeev Singh , Tsahi Daniel , Gerald Schmidt , Saurin Patel
IPC分类号： H04L29/06
CPC分类号： H04L69/08 , H04L49/3009 , H04L69/03 , H04L69/12 , H04L69/18 , H04L69/22
摘要： Embodiments of the apparatus for modifying packet headers relate to a packet generalization scheme that maintains information across protocol layers of packets. The packet generalization scheme uses a protocol table that includes layer information for all possible protocol layer combinations. The protocol layer combinations in the protocol table are manually configured through software. Each protocol layer combination in the protocol table is uniquely identified by a PktID. A rewrite engine of a network device receives the PktID for a packet and uses that unique identifier as key to the protocol table to access information for each protocol layer of the packet that the rewrite engine requires during modification of the packet. The packet generalization scheme eliminates the need for a parser engine of the network device to pass parsed data to the rewrite engine, which is resource intensive.
摘要翻译：用于修改分组报头的装置的实施例涉及跨分组的协议层维护信息的分组泛化方案。分组泛化方案使用包括所有可能的协议层组合的层信息的协议表。通过软件手动配置协议表中的协议层组合。协议表中的每个协议层组合由PktID唯一标识。网络设备的重写引擎接收分组的PktID，并使用该唯一标识符作为协议表的密钥，以访问重写引擎在分组修改期间所需的分组的每个协议层的信息。分组泛化方案消除了对网络设备的解析器引擎的需要，以将解析的数据传递到资源密集型的重写引擎。

9. 发明申请

US20150373155A1 METHOD OF MODIFYING PACKETS TO A GENERIC FORMAT FOR ENABLING PROGRAMMABLE MODIFICATIONS AND AN APPARATUS THEREOF 有权
标题翻译：将分组修改为通用格式以实现可编程修改的方法及其设备
公开(公告)号：US20150373155A1
公开(公告)日：2015-12-24
申请号：US14309603
申请日：2014-06-19
申请人： XPLIANT, Inc
发明人： Chirinjeev Singh , Vishal Anand , Tsahi Daniel , Gerald Schmidt
IPC分类号： H04L29/06
CPC分类号： H04L69/08 , H04L49/3009 , H04L69/164 , H04L69/22 , H04W4/90
摘要： Embodiments of the apparatus for modifying packet headers relate to a rewrite engine that represents each protocol header of packets in a generic format specific to that protocol to enable programmable modifications of packets, resulting in hardware and software flexibility in modifying packet headers. Software programs generic formats in a hardware table for various protocols. The rewrite engine is able to detect missing fields from a protocol header and is able to expand the protocol header to a maximum size such that the protocol header contains all possible fields of that protocol. Each of the fields has the same offset irrespective of which variation of the protocol the protocol header corresponds to. In a bit vector, all newly added fields are marked invalid (represented by 0), and all existing fields are marked valid (represented by 1). Software modification commands allow data to be replaced, removed and inserted.
摘要翻译：用于修改分组报头的设备的实施例涉及一种重写引擎，该引擎代表该协议特有的通用格式的分组的每个协议报头，以实现分组的可编程修改，从而导致修改分组报头的硬件和软件灵活性。各种协议的硬件表中的软件程序通用格式。重写引擎能够从协议头检测到丢失的字段，并且能够将协议头扩展到最大大小，使得协议头包含该协议的所有可能字段。每个字段具有相同的偏移量，而不管协议报头对应于哪个协议的变化。在一个位向量中，所有新添加的字段被标记为无效（由0表示），并且所有现有字段被标记为有效（由1表示）。软件修改命令允许替换，删除和插入数据。

10. 发明申请

US20150187419A1 METHOD AND SYSTEM FOR RECONFIGURABLE PARALLEL LOOKUPS USING MULTIPLE SHARED MEMORIES 有权
标题翻译：使用多个共享记忆的可重构平行查询的方法和系统
公开(公告)号：US20150187419A1
公开(公告)日：2015-07-02
申请号：US14142511
申请日：2013-12-27
申请人： XPLIANT, INC.
发明人： Anh T. Tran , Gerald Schmidt , Tsahi Daniel , Saurabh Shrivastava
IPC分类号： G11C15/04
CPC分类号： G06F3/0644 , G06F3/061 , G06F3/0683 , G06F12/0864 , G11C15/04 , H03K19/17728 , H04L45/745 , H04L45/7453
摘要： Embodiments of the present invention relate to multiple parallel lookups using a pool of shared memories by proper configuration of interconnection networks. The number of shared memories reserved for each lookup is reconfigurable based on the memory capacity needed by that lookup. The shared memories are grouped into homogeneous tiles. Each lookup is allocated a set of tiles based on the memory capacity needed by that lookup. The tiles allocated for each lookup do not overlap with other lookups such that all lookups can be performed in parallel without collision. Each lookup is reconfigurable to be either hash-based or direct-access. The interconnection networks are programmed based on how the tiles are allocated for each lookup.
摘要翻译：本发明的实施例涉及通过互连网络的适当配置使用共享存储器池的多个并行查找。保留用于每次查找的共享存储器的数量可以基于该查找所需的存储器容量来重新配置。共享存储器被分组成均匀的瓦片。根据该查找所需的内存容量，为每个查找分配一组瓦片。为每个查找分配的瓦片不与其他查找重叠，以便所有查找可以并行执行而不发生冲突。每个查找可重新配置为基于哈希或直接访问。基于如何为每个查找分配瓦片来对互连网络进行编程。

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