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1. 发明申请

US20060075057A1 Remote direct memory access system and method 审中-公开
标题翻译：远程直接内存访问系统和方法
公开(公告)号：US20060075057A1
公开(公告)日：2006-04-06
申请号：US10929943
申请日：2004-08-30
申请人： Kevin Gildea , Rama Govindaraju , Donald Grice , Peter Hochschild , Fu Chung Chang
发明人： Kevin Gildea , Rama Govindaraju , Donald Grice , Peter Hochschild , Fu Chung Chang
IPC分类号： G06F15/167
CPC分类号： H04L67/1097 , H04L67/18
摘要： A remote direct memory access (RDMA) system is provided in which data is transferred over a network by DMA between from a memory of a first node of a multi-processor system having a plurality of nodes connected by a network and a memory of a second node of the multi-processor system. The system includes a first network adapter at the first node, operable to transmit data stored in the memory of the first node to a second node in a plurality of portions in fulfillment of a DMA request. The first network adapter is operable to transmit each portion together with identifying information and information identifying a location for storing the transmitted portion in the memory of the second node, such that each portion is capable of being received independently by the second node according to the identifying information. Each portion is further capable of being stored in the memory of the second node at the location identified by the location identifying information.
摘要翻译：提供了一种远程直接存储器访问（RDMA）系统，其中通过DMA在具有由网络连接的多个节点的多处理器系统的第一节点的存储器和第二个存储器连接的存储器之间的网络上通过网络传送数据多处理器系统的节点。该系统包括第一节点处的第一网络适配器，可操作以在DMA请求的多个部分中将存储在第一节点的存储器中的数据发送到多个部分中的第二节点。第一网络适配器可操作以将每个部分与识别信息和信息一起发送，识别信息和信息标识用于存储第二节点的存储器中的发送部分的位置，使得每个部分能够由第二节点独立地根据识别信息。每个部分还能够在由位置识别信息标识的位置处存储在第二节点的存储器中。

2. 发明授权

US07813369B2 Half RDMA and half FIFO operations 失效
标题翻译：半RDMA和半FIFO操作
公开(公告)号：US07813369B2
公开(公告)日：2010-10-12
申请号：US11017406
申请日：2004-12-20
申请人： Robert S. Blackmore , Fu Chung Chang , Piyush Chaudhary , Kevin J. Gildea , Jason E. Goscinski , Rama K. Govindaraju , Donald G. Grice , Leonard W. Helmer, Jr. , Patricia E. Heywood , Peter H. Hochschild , John S. Houston , Chulho Kim , Steven J. Martin
发明人： Robert S. Blackmore , Fu Chung Chang , Piyush Chaudhary , Kevin J. Gildea , Jason E. Goscinski , Rama K. Govindaraju , Donald G. Grice , Leonard W. Helmer, Jr. , Patricia E. Heywood , Peter H. Hochschild , John S. Houston , Chulho Kim , Steven J. Martin
IPC分类号： G06F13/14
CPC分类号： H04L67/1097
摘要： In a multinode data processing system in which nodes exchange information over a network or through a switch, a structure and mechanism is provided within the realm of Remote Direct Memory Access (RDMA) operations in which DMA operations are present on one side of the transfer but not the other. On the side in which the transfer is not carried out in DMA fashion, transfer processing is carried out under program control; this is in contrast to the transfer on the DMA side which is characteristically carried out in hardware. Usage of these combination processes is useful in programming situations where RDMA is carried out to or from contiguous locations in memory on one side and where memory locations on the other side is noncontiguous. This split mode of transfer is provided both for read and for write operations.
摘要翻译：在其中节点通过网络或通过交换机交换信息的多节点数据处理系统中，在远程直接存储器访问（RDMA）操作的领域内提供了结构和机制，其中DMA操作存在于传输的一侧，但是不是其他的在DMA方式不进行传输的一方，传送处理在程序控制下进行; 这与在硬件上进行特征性的DMA侧的传输相反。这些组合过程的使用对于在一侧执行RDMA到存储器中的连续位置并且另一侧上的存储器位置不连续地执行RDMA的编程情况是有用的。这种分离传输模式为读取和写入操作都提供。

3. 发明授权

US08023417B2 Failover mechanisms in RDMA operations 失效
标题翻译： RDMA操作中的故障切换机制
公开(公告)号：US08023417B2
公开(公告)日：2011-09-20
申请号：US11017574
申请日：2004-12-20
申请人： Robert S. Blackmore , Fu Chung Chang , Piyush Chaudhary , Jason E. Goscinski , Rama K. Govindaraju , Leonard W. Helmer, Jr. , Peter H. Hochschild , John S. Houston , Steven J. Martin , Donald G. Grice
发明人： Robert S. Blackmore , Fu Chung Chang , Piyush Chaudhary , Jason E. Goscinski , Rama K. Govindaraju , Leonard W. Helmer, Jr. , Peter H. Hochschild , John S. Houston , Steven J. Martin , Donald G. Grice
IPC分类号： H04L12/56 , H04L9/00 , H04L29/06 , G06F15/173
CPC分类号： H04L1/0079 , G06F11/1443 , H04L1/1809 , H04L2001/0097
摘要： In remote direct memory access transfers in a multinode data processing system in which the nodes communicate with one another through communication adapters coupled to a switch or network, failures in the nodes or in the communication adapters can produce the phenomenon known as trickle traffic, which is data that has been received from the switch or from the network that is stale but which may have all the signatures of a valid packet data. The present invention addresses the trickle traffic problem in two situations: node failure and adapter failure. In the node failure situation randomly generated keys are used to reestablish connections to the adapter while providing a mechanism for the recognition of stale packets. In the adapter failure situation, a round robin context allocation approach is used with adapter state contexts being provided with state information which helps to identify stale packets.
摘要翻译：在多节点数据处理系统中的远程直接存储器访问传输中，其中节点通过耦合到交换机或网络的通信适配器彼此通信，节点或通信适配器中的故障可能产生称为流量流量的现象，已经从交换机接收到的数据或者来自网络的数据已经过时，但是可能具有有效分组数据的所有签名。本发明解决了两种情况下的涓流流量问题：节点故障和适配器故障。在节点故障情况下，随机生成的密钥用于重新建立与适配器的连接，同时提供用于识别过时数据包的机制。在适配器故障情况下，使用循环上下文分配方法，适配器状态上下文被提供有状态信息，其有助于识别过时的分组。

4. 发明申请

US20090125604A1 THIRD PARTY, BROADCAST, MULTICAST AND CONDITIONAL RDMA OPERATIONS 有权
标题翻译：第三方，广播，多媒体和条件RDMA操作
公开(公告)号：US20090125604A1
公开(公告)日：2009-05-14
申请号：US12344766
申请日：2008-12-29
申请人： Fu Chung Chang , Piyush Chaudhary , Jason E. Goscinski , Jason S. Houston , Steven J. Martin
发明人： Fu Chung Chang , Piyush Chaudhary , Jason E. Goscinski , Jason S. Houston , Steven J. Martin
IPC分类号： G06F15/167
CPC分类号： H04L69/16 , H04L69/166
摘要： In a multinode data processing system in which nodes exchange information over a network or through a switch, the mechanism which enables out-of-order data transfer via Remote Direct Memory Access (RDMA) also provides a corresponding ability to carry out broadcast operations, multicast operations, third party operations and conditional RDMA operations. In a broadcast operation a source node transfers data packets in RDMA fashion to a plurality of destination nodes. Multicast operation works similarly except that distribution is selective. In third party operations a single central node in a cluster or network manages the transfer of data in RDMA fashion between other nodes or creates a mechanism for allowing a directed distribution of data between nodes. In conditional operation mode the transfer of data is conditioned upon one or more events occurring in either the source node or in the destination node.
摘要翻译：在节点通过网络交换信息或通过交换机交换信息的多节点数据处理系统中，通过远程直接存储器访问（RDMA）实现无序数据传输的机制也提供了相应的能力来执行广播操作，组播操作，第三方操作和有条件的RDMA操作。在广播操作中，源节点以RDMA方式将数据分组传送到多个目的节点。组播操作的工作方式类似，除了分发是有选择性的。在第三方操作中，集群或网络中的单个中央节点以RDMA方式在其他节点之间管理数据传输，或者创建一种允许在节点之间定向分发数据的机制。在条件操作模式中，数据的传输是在源节点或目标节点中发生的一个或多个事件的条件。

5. 发明授权

US07522597B2 Interface internet protocol fragmentation of large broadcast packets in an environment with an unaccommodating maximum transfer unit 失效
标题翻译：在具有不适应最大传输单元的环境中，大型广播数据包的接口互联网协议分段
公开(公告)号：US07522597B2
公开(公告)日：2009-04-21
申请号：US10981097
申请日：2004-11-04
申请人： Fu Chung Chang , Piyush Chaudhary , Jennifer M. Doxtader
发明人： Fu Chung Chang , Piyush Chaudhary , Jennifer M. Doxtader
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L45/16 , H04L47/36 , H04L67/12 , H04L69/14 , H04L69/326
摘要： In a multinode data processing system in which the nodes communicate with one another through communication adapters coupled to a switch or network, a method is provided for using the Internet Protocol (IP) for transmitting large broadcast data packets without incurring the overhead normally associated with packet fragmentation. By adding an Internet Protocol (IP) header as the first header in every packet fragment in the fragmentation process, fragmented packets are able to be assembled in the IP layer without intervention at the adapter interface layer.
摘要翻译：在通过耦合到交换机或网络的通信适配器彼此通信的多节点数据处理系统中，提供了一种使用互联网协议（IP）来发送大型广播数据分组而不产生通常与分组相关的开销的方法碎片化通过在分段过程的每个分组片段中添加因特网协议（IP）头部作为第一个报头，碎片分组能够组装在IP层中，而不会在适配器接口层进行干预。

6. 发明申请

US20060045099A1 Third party, broadcast, multicast and conditional RDMA operations 有权
标题翻译：第三方，广播，组播和有条件的RDMA操作
公开(公告)号：US20060045099A1
公开(公告)日：2006-03-02
申请号：US11017355
申请日：2004-12-20
申请人： Fu Chung Chang , Piyush Chaudhary , Jason Goscinski , John Houston , Steven Martin
发明人： Fu Chung Chang , Piyush Chaudhary , Jason Goscinski , John Houston , Steven Martin
IPC分类号： H04L12/56 , H04L12/28
CPC分类号： H04L69/16 , H04L69/166
摘要： In a multinode data processing system in which nodes exchange information over a network or through a switch, the mechanism which enables out-of-order data transfer via Remote Direct Memory Access (RDMA) also provides a corresponding ability to carry out broadcast operations, multicast operations, third party operations and conditional RDMA operations. In a broadcast operation a source node transfers data packets in RDMA fashion to a plurality of destination nodes. Multicast operation works similarly except that distribution is selective. In third party operations a single central node in a cluster or network manages the transfer of data in RDMA fashion between other nodes or creates a mechanism for allowing a directed distribution of data between nodes. In conditional operation mode the transfer of data is conditioned upon one or more events occurring in either the source node or in the destination node.
摘要翻译：在节点通过网络交换信息或通过交换机交换信息的多节点数据处理系统中，通过远程直接存储器访问（RDMA）实现无序数据传输的机制也提供了相应的能力来执行广播操作，组播操作，第三方操作和有条件的RDMA操作。在广播操作中，源节点以RDMA方式将数据分组传送到多个目的节点。组播操作的工作方式类似，除了分发是有选择性的。在第三方操作中，集群或网络中的单个中央节点以RDMA方式在其他节点之间管理数据传输，或者创建一种允许在节点之间定向分发数据的机制。在条件操作模式中，数据的传输是在源节点或目标节点中发生的一个或多个事件的条件。

7. 发明授权

US07619993B2 Efficient probabilistic duplicate packet detector in computer networks 失效
标题翻译：计算机网络中的高效概率重复数据包检测器
公开(公告)号：US07619993B2
公开(公告)日：2009-11-17
申请号：US11264529
申请日：2005-11-01
申请人： Carl A. Bender , Fu Chung Chang , Kevin J. Gildea , Rama J. Govindaraju , Jay R. Herring , Peter H. Hochschild , Richard A. Swetz
发明人： Carl A. Bender , Fu Chung Chang , Kevin J. Gildea , Rama J. Govindaraju , Jay R. Herring , Peter H. Hochschild , Richard A. Swetz
IPC分类号： H04L12/28 , G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26 , G08C25/00 , G06F15/16
CPC分类号： H04L29/06 , H04L1/0057 , H04L1/0061 , H04L1/0079 , H04L69/326 , H04L2001/0092
摘要： In order to solve the problem of the detection of the arrival of duplicate data packets in an interconnected, multinode data processing system, each data packet is provided with a field of r bits that are randomly generated for each data packet. However, one of the packets is provided with a field that is computed from the other randomly generated field entries in a checksum computation which yields a selected nonzero checksum value. A running checksum at the receiver is used to determine whether or not, after the receipt of the specified number, k, of data packets, a duplicate packet has been received.
摘要翻译：为了解决在互连的多节点数据处理系统中检测到重复数据分组的问题的问题，每个数据分组被提供有为每个数据分组随机生成的r比特的字段。然而，其中一个分组被提供有一个字段，该字段是在产生选定的非零校验和值的校验和计算中的其他随机生成的字段条目中计算的。在接收机上运行的校验和用于确定在接收到数据包的指定数量k之后是否已经接收到重复分组。

8. 发明授权

US07478138B2 Method for third party, broadcast, multicast and conditional RDMA operations 有权
标题翻译：第三方，广播，多播和条件RDMA操作的方法
公开(公告)号：US07478138B2
公开(公告)日：2009-01-13
申请号：US11017355
申请日：2004-12-20
申请人： Fu Chung Chang , Piyush Chaudhary , Jason E. Goscinski , John S. Houston , Steven J. Martin
发明人： Fu Chung Chang , Piyush Chaudhary , Jason E. Goscinski , John S. Houston , Steven J. Martin
IPC分类号： G06F13/14
CPC分类号： H04L69/16 , H04L69/166
摘要： In a multinode data processing system in which nodes exchange information over a network or through a switch, the mechanism which enables out-of-order data transfer via Remote Direct Memory Access (RDMA) also provides a corresponding ability to carry out broadcast operations, multicast operations, third party operations and conditional RDMA operations. In a broadcast operation a source node transfers data packets in RDMA fashion to a plurality of destination nodes. Multicast operation works similarly except that distribution is selective. In third party operations a single central node in a cluster or network manages the transfer of data in RDMA fashion between other nodes or creates a mechanism for allowing a directed distribution of data between nodes. In conditional operation mode the transfer of data is conditioned upon one or more events occurring in either the source node or in the destination node.
摘要翻译：在节点通过网络交换信息或通过交换机交换信息的多节点数据处理系统中，通过远程直接存储器访问（RDMA）实现无序数据传输的机制也提供了相应的能力来执行广播操作，组播操作，第三方操作和有条件的RDMA操作。在广播操作中，源节点以RDMA方式将数据分组传送到多个目的节点。组播操作的工作方式类似，除了分发是有选择性的。在第三方操作中，集群或网络中的单个中央节点以RDMA方式在其他节点之间管理数据传输，或者创建一种允许在节点之间定向分发数据的机制。在条件操作模式中，数据的传输是在源节点或目标节点中发生的一个或多个事件的条件。

9. 发明授权

US08031639B2 Efficient probabilistic duplicate packet detector in computer networks 有权
标题翻译：计算机网络中的高效概率重复数据包检测器
公开(公告)号：US08031639B2
公开(公告)日：2011-10-04
申请号：US12561669
申请日：2009-09-17
申请人： Carl A. Bender , Fu Chung Chang , Kevin J. Gildea , Rama K. Govindaraju , Jay R. Herring , Peter H. Hochschild , Richard A. Swetz
发明人： Carl A. Bender , Fu Chung Chang , Kevin J. Gildea , Rama K. Govindaraju , Jay R. Herring , Peter H. Hochschild , Richard A. Swetz
IPC分类号： H04L12/28 , H04L1/00 , H04L12/26 , G01R31/08 , G06F11/00 , G06F15/16 , G08C15/00 , G08C25/00 , H04J1/16 , H04J3/14
CPC分类号： H04L29/06 , H04L1/0057 , H04L1/0061 , H04L1/0079 , H04L69/326 , H04L2001/0092
摘要： In order to solve the problem of the detection of the arrival of duplicate data packets in an interconnected, multinode data processing system, each data packet is provided with a field of r bits that are randomly generated for each data packet. However, one of the packets is provided with a field that is computed from the other randomly generated field entries in a checksum computation which yields a selected nonzero checksum value. A running checksum at the receiver is used to determine whether or not, after the receipt of the specified number, k, of data packets, a duplicate packet has been received.
摘要翻译：为了解决在互连的多节点数据处理系统中检测到重复数据分组的问题的问题，每个数据分组被提供有为每个数据分组随机生成的r比特的字段。然而，其中一个分组被提供有一个字段，该字段是在产生选定的非零校验和值的校验和计算中的其他随机生成的字段条目中计算的。在接收机上运行的校验和用于确定在接收到数据包的指定数量k之后是否已经接收到重复分组。

10. 发明授权

US07953085B2 Third party, broadcast, multicast and conditional RDMA operations 有权
标题翻译：第三方，广播，组播和有条件的RDMA操作
公开(公告)号：US07953085B2
公开(公告)日：2011-05-31
申请号：US12344766
申请日：2008-12-29
申请人： Fu Chung Chang , Piyush Chaudhary , Jason E. Goscinski , Jason S. Houston , Steven J. Martin
发明人： Fu Chung Chang , Piyush Chaudhary , Jason E. Goscinski , Jason S. Houston , Steven J. Martin
IPC分类号： G06F13/14
CPC分类号： H04L69/16 , H04L69/166
摘要： In a multinode data processing system in which nodes exchange information over a network or through a switch, the mechanism which enables out-of-order data transfer via Remote Direct Memory Access (RDMA) also provides a corresponding ability to carry out broadcast operations, multicast operations, third party operations and conditional RDMA operations. In a broadcast operation a source node transfers data packets in RDMA fashion to a plurality of destination nodes. Multicast operation works similarly except that distribution is selective. In third party operations a single central node in a cluster or network manages the transfer of data in RDMA fashion between other nodes or creates a mechanism for allowing a directed distribution of data between nodes. In conditional operation mode the transfer of data is conditioned upon one or more events occurring in either the source node or in the destination node.
摘要翻译：在节点通过网络交换信息或通过交换机交换信息的多节点数据处理系统中，通过远程直接存储器访问（RDMA）实现无序数据传输的机制也提供了相应的能力来执行广播操作，组播操作，第三方操作和有条件的RDMA操作。在广播操作中，源节点以RDMA方式将数据分组传送到多个目的节点。组播操作的工作方式类似，除了分发是有选择性的。在第三方操作中，集群或网络中的单个中央节点以RDMA方式在其他节点之间管理数据传输，或者创建一种允许在节点之间定向分发数据的机制。在条件操作模式中，数据的传输是在源节点或目标节点中发生的一个或多个事件的条件。

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