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11. 发明授权

US08699521B2 Apparatus and method for in-line insertion and removal of markers 有权
标题翻译：用于在线插入和移除标记物的装置和方法
公开(公告)号：US08699521B2
公开(公告)日：2014-04-15
申请号：US12986665
申请日：2011-01-07
申请人： Kenneth G. Keels , Jeff M. Carlson , Brian S. Hausauer , David J. Maguire
发明人： Kenneth G. Keels , Jeff M. Carlson , Brian S. Hausauer , David J. Maguire
IPC分类号： H04L1/00
CPC分类号： H04L67/02 , H04L49/90 , H04L49/9094 , H04L69/12
摘要： An apparatus is provided, for performing a direct memory access (DMA) operation between a host memory in a first server and a network adapter. The apparatus includes a host frame parser and a protocol engine. The host frame parser is configured to receive data corresponding to the DMA operation from a host interface, and is configured to insert markers on-the-fly into the data at a prescribed interval and to provide marked data for transmission to a second server over a network fabric. The protocol engine is coupled to the host frame parser. The protocol engine is configured to direct the host frame parser to insert the markers, and is configured to specify a first marker value and an offset value, whereby the host frame parser is enabled to locate and insert a first marker into the data.
摘要翻译：提供了一种用于在第一服务器中的主机存储器和网络适配器之间执行直接存储器访问（DMA）操作的装置。该装置包括主机帧解析器和协议引擎。主机帧解析器被配置为从主机接口接收对应于DMA操作的数据，并且被配置为以规定的间隔将动态的标记插入到数据中，并提供标记的数据，以便通过一个网络结构。协议引擎耦合到主机帧解析器。协议引擎被配置为指导主机帧解析器插入标记，并且被配置为指定第一标记值和偏移值，由此使主机帧解析器能够定位并将第一标记插入到数据中。

12. 发明申请

US20140089444A1 METHODS, APPARATUS AND SYSTEMS FOR FACILITATING RDMA OPERATIONS WITH REDUCED DOORBELL RINGS 有权
标题翻译：方法，装备和系统，用于减少DOORBELL环的RDMA操作
公开(公告)号：US20140089444A1
公开(公告)日：2014-03-27
申请号：US13628771
申请日：2012-09-27
申请人： Vadim Makhervaks , Kenneth G. Keels , Brian S. Hausauer , Ali S. Oztaskin
发明人： Vadim Makhervaks , Kenneth G. Keels , Brian S. Hausauer , Ali S. Oztaskin
IPC分类号： G06F15/167
CPC分类号： G06F15/17331
摘要： Methods, apparatus and systems for reducing usage of Doorbell Rings in connection with RDMA operations. A portion of system memory is employed as a Memory-Mapped Input/Output (MMIO) address space configured to be accessed via a hardware networking device. A Send Queue (SQ) is stored in MMIO and is used to facilitate processing of Work Requests (WRs) that are written to SQ entries by software and read from the SQ via the hardware networking device. The software and logic in the hardware networking device employ pointers identifying locations in the SQ corresponding to a next write WR entry slot and last read WR entry slot that are implemented to enable WRs to be written to and read from the SQ during ongoing operations under which the SQ is not emptied such that doorbell rings to notify the hardware networking device that new WRs have been written to the SQ are not required.
摘要翻译：与RDMA操作相关的减少门铃环使用的方法，装置和系统。系统存储器的一部分被用作经配置以经由硬件网络设备访问的存储器映射输入/输出（MMIO）地址空间。发送队列（SQ）存储在MMIO中，用于促进通过软件写入SQ条目并通过硬件网络设备从SQ读取的工作请求（WR）的处理。硬件网络设备中的软件和逻辑采用标识SQ中相应于下一个写入WR入口时隙的位置的指针，以及最后读取的WR入口时隙，其被实现为使得在正在进行的操作期间将WR写入到SQ并从其读取， SQ不能清空，以致门铃振铃以通知硬件网络设备不会向SQ写入新的WR。

13. 发明申请

US20110099243A1 APPARATUS AND METHOD FOR IN-LINE INSERTION AND REMOVAL OF MARKERS 有权
标题翻译：用于在线插入和删除标记的装置和方法
公开(公告)号：US20110099243A1
公开(公告)日：2011-04-28
申请号：US12986665
申请日：2011-01-07
申请人： Kenneth G. Keels , Jeff M. Carlson , Brian S. Hausauer , David J. Maguire
发明人： Kenneth G. Keels , Jeff M. Carlson , Brian S. Hausauer , David J. Maguire
IPC分类号： G06F15/167
CPC分类号： H04L67/02 , H04L49/90 , H04L49/9094 , H04L69/12
摘要： An apparatus is provided, for performing a direct memory access (DMA) operation between a host memory in a first server and a network adapter. The apparatus includes a host frame parser and a protocol engine. The host frame parser is configured to receive data corresponding to the DMA operation from a host interface, and is configured to insert markers on-the-fly into the data at a prescribed interval and to provide marked data for transmission to a second server over a network fabric. The protocol engine is coupled to the host frame parser. The protocol engine is configured to direct the host frame parser to insert the markers, and is configured to specify a first marker value and an offset value, whereby the host frame parser is enabled to locate and insert a first marker into the data.
摘要翻译：提供了一种用于在第一服务器中的主机存储器和网络适配器之间执行直接存储器访问（DMA）操作的装置。该装置包括主机帧解析器和协议引擎。主机帧解析器被配置为从主机接口接收对应于DMA操作的数据，并且被配置为以规定的间隔将动态的标记插入到数据中，并提供标记的数据，以便通过一个网络结构。协议引擎耦合到主机帧解析器。协议引擎被配置为指导主机帧解析器插入标记，并且被配置为指定第一标记值和偏移值，由此使主机帧解析器能够定位并将第一标记插入到数据中。

14. 发明授权

US08458280B2 Apparatus and method for packet transmission over a high speed network supporting remote direct memory access operations 有权
标题翻译：用于支持远程直接存储器访问操作的高速网络上的分组传输的装置和方法
公开(公告)号：US08458280B2
公开(公告)日：2013-06-04
申请号：US11315685
申请日：2005-12-22
申请人： Brian S. Hausauer , Tristan T. Gross , Kenneth G. Keels , Shaun V. Wandler
发明人： Brian S. Hausauer , Tristan T. Gross , Kenneth G. Keels , Shaun V. Wandler
IPC分类号： G06F15/167
CPC分类号： H04L67/1097 , H04L47/6265
摘要： A mechanism for performing remote direct memory access (RDMA) operations between a first server and a second server over an Ethernet fabric. The RDMA operations are initiated by execution of a verb according to a remote direct memory access protocol. The verb is executed by a CPU on the first server. The apparatus includes transaction logic that is configured to process a work queue element corresponding to the verb, and that is configured to accomplish the RDMA operations over a TCP/IP interface between the first and second servers, where the work queue element resides within first host memory corresponding to the first server. The transaction logic includes transmit history information stores and a protocol engine. The transmit history information stores maintains parameters associated with said work queue element. The protocol engine is coupled to the transmit history information stores and is configured to access the parameters to enable retransmission of one or more TCP segments corresponding to the RDMA operations.
摘要翻译：用于通过以太网结构在第一服务器和第二服务器之间执行远程直接存储器访问（RDMA）操作的机制。根据远程直接存储器访问协议执行动词来启动RDMA操作。动词由第一台服务器上的CPU执行。该装置包括被配置为处理与该动词对应的工作队列元素的事务逻辑，并且被配置为通过第一和第二服务器之间的TCP / IP接口完成RDMA操作，其中工作队列元素驻留在第一主机内存对应于第一台服务器。交易逻辑包括发送历史信息存储和协议引擎。发送历史信息存储维护与所述工作队列元素相关联的参数。协议引擎被耦合到发送历史信息存储，并且被配置为访问参数以使得能够重传与RDMA操作相对应的一个或多个TCP段。

15. 发明申请

US20140164471A1 APPARATUS AND METHOD FOR IN-LINE INSERTION AND REMOVAL OF MARKERS 有权
标题翻译：用于在线插入和删除标记的装置和方法
公开(公告)号：US20140164471A1
公开(公告)日：2014-06-12
申请号：US14183133
申请日：2014-02-18
申请人： Kenneth G. Keels , Jeff M. Carlson , Brian S. Hausauer , David J. Maguire
发明人： Kenneth G. Keels , Jeff M. Carlson , Brian S. Hausauer , David J. Maguire
IPC分类号： H04L29/08
CPC分类号： H04L67/02 , H04L49/90 , H04L49/9094 , H04L69/12
摘要： An apparatus is provided, for performing a direct memory access (DMA) operation between a host memory in a first server and a network adapter. The apparatus includes a host frame parser and a protocol engine. The host frame parser is configured to receive data corresponding to the DMA operation from a host interface, and is configured to insert markers on-the-fly into the data at a prescribed interval and to provide marked data for transmission to a second server over a network fabric. The protocol engine is coupled to the host frame parser. The protocol engine is configured to direct the host frame parser to insert the markers, and is configured to specify a first marker value and an offset value, whereby the host frame parser is enabled to locate and insert a first marker into the data.
摘要翻译：提供了一种用于在第一服务器中的主机存储器和网络适配器之间执行直接存储器访问（DMA）操作的装置。该装置包括主机帧解析器和协议引擎。主机帧解析器被配置为从主机接口接收对应于DMA操作的数据，并且被配置为以规定的间隔将动态的标记插入到数据中，并提供标记的数据，以便通过一个网络结构。协议引擎耦合到主机帧解析器。协议引擎被配置为指导主机帧解析器插入标记，并且被配置为指定第一标记值和偏移值，由此使主机帧解析器能够定位并将第一标记插入到数据中。

16. 发明授权

US07889762B2 Apparatus and method for in-line insertion and removal of markers 有权
标题翻译：用于在线插入和移除标记物的装置和方法
公开(公告)号：US07889762B2
公开(公告)日：2011-02-15
申请号：US11624849
申请日：2007-01-19
申请人： Kenneth G. Keels , Jeff M. Carlson , Brian S. Hausauer , David J. Maguire
发明人： Kenneth G. Keels , Jeff M. Carlson , Brian S. Hausauer , David J. Maguire
IPC分类号： H04J3/24
CPC分类号： H04L67/02 , H04L49/90 , H04L49/9094 , H04L69/12
摘要： An apparatus is provided, for performing a direct memory access (DMA) operation between a host memory in a first server and a network adapter. The apparatus includes a host frame parser and a protocol engine. The host frame parser is configured to receive data corresponding to the DMA operation from a host interface, and is configured to insert markers on-the-fly into the data at a prescribed interval and to provide marked data for transmission to a second server over a network fabric. The protocol engine is coupled to the host frame parser. The protocol engine is configured to direct the host frame parser to insert the markers, and is configured to specify a first marker value and an offset value, whereby the host frame parser is enabled to locate and insert a first marker into the data.
摘要翻译：提供了一种用于在第一服务器中的主机存储器和网络适配器之间执行直接存储器访问（DMA）操作的装置。该装置包括主机帧解析器和协议引擎。主机帧解析器被配置为从主机接口接收对应于DMA操作的数据，并且被配置为以规定的间隔将动态的标记插入到数据中，并提供标记的数据，以便通过一个网络结构。协议引擎耦合到主机帧解析器。协议引擎被配置为指导主机帧解析器插入标记，并且被配置为指定第一标记值和偏移值，由此使主机帧解析器能够定位并将第一标记插入到数据中。

17. 发明授权

US07782905B2 Apparatus and method for stateless CRC calculation 有权
标题翻译：无状态CRC计算的装置和方法
公开(公告)号：US07782905B2
公开(公告)日：2010-08-24
申请号：US11357449
申请日：2006-02-17
申请人： Kenneth G. Keels , Brian S. Hausauer , Vadim G. Makhervaks , Eric Jon Schneider
发明人： Kenneth G. Keels , Brian S. Hausauer , Vadim G. Makhervaks , Eric Jon Schneider
IPC分类号： H04J3/24
CPC分类号： H04L67/1097 , H04L1/0061 , H04L1/0072 , H04L1/0083 , H04L1/08 , H04L1/1607 , H04L2001/0092
摘要： A mechanism for performing remote direct memory access (RDMA) operations between a first server and a second server. The apparatus includes a packet parser and a protocol engine. The packet parser processes a TCP segment within an arriving network frame, where the packet parser performs one or more speculative CRC checks according to an upper layer protocol (ULP), and where the one or more speculative CRC checks are performed concurrent with arrival of the network frame. The protocol engine is coupled to the packet parser. The protocol engine receives results of the one or more speculative CRC checks, and selectively employs the results for validation of a framed protocol data unit (FPDU) according to the ULP.
摘要翻译：用于在第一服务器和第二服务器之间执行远程直接存储器访问（RDMA）操作的机制。该装置包括分组解析器和协议引擎。分组解析器处理到达网络帧内的TCP分段，其中分组解析器根据上层协议（ULP）执行一个或多个推测性CRC校验，并且其中一个或多个推测性CRC校验与网络框架。协议引擎耦合到数据包解析器。协议引擎接收一个或多个推测性CRC校验的结果，并根据ULP有选择地使用结果验证成帧协议数据单元（FPDU）。

18. 发明授权

US09354933B2 Remote direct memory access adapter state migration in a virtual environment 有权
标题翻译：远程直接内存访问适配器在虚拟环境中进行状态迁移
公开(公告)号：US09354933B2
公开(公告)日：2016-05-31
申请号：US13285299
申请日：2011-10-31
申请人： Robert O. Sharp , Kenneth G. Keels
发明人： Robert O. Sharp , Kenneth G. Keels
IPC分类号： G06F15/167 , G06F9/50
CPC分类号： G06F15/17331 , G06F3/0619 , G06F3/0644 , G06F3/065 , G06F3/067 , G06F9/45558 , G06F9/5016 , G06F2009/4557
摘要： In an embodiment of the present invention, a method includes partitioning a plurality of remote direct memory access context objects among a plurality of virtual functions, establishing a remote direct memory access connection between a first of the plurality of virtual functions, and migrating the remote direct memory access connection from the first of the plurality of virtual functions to a second of the plurality of virtual functions without disconnecting from the remote peer.
摘要翻译：在本发明的一个实施例中，一种方法包括在多个虚拟功能之间划分多个远程直接存储器访问上下文对象，在所述多个虚拟功能中的第一个之间建立远程直接存储器访问连接，以及迁移所述远程直接从所述多个虚拟功能中的第一个到所述多个虚拟功能中的第二虚拟功能的存储器访问连接，而不断开与所述远程对等体的连接。

19. 发明申请

US20150026286A1 IWARP RDMA READ EXTENSIONS 有权
标题翻译： IWARP RDMA读取扩展
公开(公告)号：US20150026286A1
公开(公告)日：2015-01-22
申请号：US13945358
申请日：2013-07-18
申请人： Robert O. Sharp , Donald E. Wood , Kenneth G. Keels
发明人： Robert O. Sharp , Donald E. Wood , Kenneth G. Keels
IPC分类号： G06F15/167
CPC分类号： G06F15/167 , G06F15/17331
摘要： Apparatus, method and system for supporting Remote Direct Memory Access (RDMA) Read V2 Request and Response messages using the Internet Wide Area RDMA Protocol (iWARP). iWARP logic in an RDMA Network Interface Controller (RNIC) is configured to generate a new RDMA Read V2 Request message and generate a new RDMA Read V2 Response message in response to a received RDMA Read V2 Request message, and send the messages to an RDMA remote peer using iWARP implemented over an Ethernet network. The iWARP logic is further configured to process RDMA Read V2 Response messages received from the RDMA remote peer, and to write data contained in the messages to appropriate locations using DMA transfers from buffers on the RNIC into system memory. In addition, the new semantics removes the need for extra operations to grant and revoke remote access rights.
摘要翻译：使用互联网广域RDMA协议（iWARP）支持远程直接存储器访问（RDMA）读取V2请求和响应消息的装置，方法和系统。 RDMA网络接口控制器（RNIC）中的iWARP逻辑被配置为生成新的RDMA读取V2请求消息，并响应于接收的RDMA读取V2请求消息生成新的RDMA读取V2响应消息，并将消息发送到RDMA远程通过以太网网络实现的iWARP对等体。 iWARP逻辑还被配置为处理从RDMA远程对等体接收的RDMA读取V2响应消息，并且使用从RNIC上的缓冲器的DMA传送到包含在系统存储器中的DMA传输将包含在消息中的数据写入适当的位置。另外，新的语义消除了额外的操作来授予和撤销远程访问权限的需要。

20. 发明授权

US10051038B2 Shared send queue 有权
公开(公告)号：US10051038B2
公开(公告)日：2018-08-14
申请号：US13994776
申请日：2011-12-23
申请人： Vadim Makhervaks , Robert O. Sharp , Brian Hausauer , Kenneth G. Keels , Donald E. Wood
发明人： Vadim Makhervaks , Robert O. Sharp , Brian Hausauer , Kenneth G. Keels , Donald E. Wood
IPC分类号： H04L29/08 , H04L12/861 , H04L12/863 , H04L12/707 , G06F13/14 , G06F13/38
CPC分类号： H04L67/10 , G06F13/14 , G06F13/38 , G06F13/385 , H04L45/24 , H04L47/50 , H04L49/90
摘要： Generally, this disclosure relates to a shared send queue in a networked system. A method, apparatus and system are configured to support a plurality of reliable communication channels using a shared send queue. The reliable communication channels are configured to carry messages from a host to a plurality of destinations and to ensure completed order of messages is related to a transmission order.

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