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1. 发明申请

US20070226750A1 Pipelined processing of RDMA-type network transactions 有权
标题翻译：流水线处理RDMA型网络交易
公开(公告)号：US20070226750A1
公开(公告)日：2007-09-27
申请号：US11356493
申请日：2006-02-17
申请人： Robert Sharp , Kenneth Keels , Brian Hausauer , Eric Rose
发明人： Robert Sharp , Kenneth Keels , Brian Hausauer , Eric Rose
IPC分类号： G06F15/16
CPC分类号： H04L67/1097
摘要： A computer system such as a server pipelines RNIC interface (RI) management/control operations such as memory registration operations to hide from network applications the latency in performing RDMA work requests caused in part by delays in processing the memory registration operations and the time required to execute the registration operations themselves. A separate QP-like structure, called a control QP (CQP), interfaces with a control processor (CP) to form a control path pipeline, separate from the transaction pipeline, which is designated to handle all control path traffic associated with the processing of RI control operations. This includes memory registration operations (MR OPs), as well as the creation and destruction of traditional QPs for processing RDMA transactions. Once the MR OP has been queued in the control path pipeline of the adapter, a pending bit is set which is associated with the MR OP. Processing of an RDMA work request in the transaction pipeline that has engendered the enqueued MR OP is permitted to proceed as if the processing of the MR OP has already been completed. If the work request gets ahead of the MR OP, the associated pending bit being set will notify the adapter's work request transaction pipeline to stall (and possibly reschedule) completion of the work request until the processing of the MR OP for that memory region is complete. When the memory registration process for the memory region is complete, the associated pending bit is reset and the adapter transaction pipeline is permitted to continue processing the work request using the newly registered memory region.
摘要翻译：计算机系统，例如服务器管线RNIC接口（RI）管理/控制操作，诸如存储器注册操作，以从网络应用中隐藏执行RDMA工作请求的延迟部分地由于处理存储器注册操作的延迟和所需的时间执行注册操作本身。称为控制QP（CQP）的独立QP类结构与控制处理器（CP）接口，以形成与事务流水线分开的控制路径流水线，其被指定为处理与处理相关联的所有控制路径流量 RI控制操作。这包括内存注册操作（MR OP），以及创建和销毁用于处理RDMA事务的传统QP。一旦MR OP已经在适配器的控制路径管道中排队，则设置与MR OP相关联的挂起位。如果已经完成了MR操作的处理，处理已经引入入站的MR OP的事务流水线中的RDMA工作请求被执行。如果工作请求超过MR OP，则相关的待处理位将被设置将通知适配器的工作请求事务流水线停止（可能重新计划）工作请求的完成，直到该存储器区域的MR OP的处理完成。当存储器区域的存储器注册过程完成时，相关联的挂起位被复位，并且适配器事务流水线被允许使用新登记的存储器区域继续处理工作请求。

2. 发明申请

US20070208820A1 Apparatus and method for out-of-order placement and in-order completion reporting of remote direct memory access operations 审中-公开
标题翻译：远程直接存储器访问操作的无序放置和按顺序完成报告的装置和方法
公开(公告)号：US20070208820A1
公开(公告)日：2007-09-06
申请号：US11357445
申请日：2006-02-17
申请人： Vadim Makhervaks , Kenneth Keels
发明人： Vadim Makhervaks , Kenneth Keels
IPC分类号： G06F15/167 , G06F15/16
CPC分类号： H04L69/166 , H04L67/10 , H04L69/16
摘要： A mechanism for performing RDMA operations over a network fabric. Apparatus includes transaction logic to process work queue elements, and to accomplish the RDMA operations over a TCP/IP interface between first and second servers. The transaction logic has out-of-order segment range record stores and a protocol engine. The out-of-order segment range record stores maintains parameters associated with one or more out-of-order segments, the one or more out-of-order segments having been received and corresponding to one or more RDMA messages that are associated with the work queue elements. The protocol engine is coupled to the out-of-order segment range record stores and is configured to access the parameters to enable in-order completion tracking and reporting of the one or more RDMA messages.
摘要翻译：通过网络结构执行RDMA操作的机制。装置包括用于处理工作队列元件的事务逻辑，以及通过第一和第二服务器之间的TCP / IP接口完成RDMA操作。事务逻辑具有无序段范围记录存储和协议引擎。无序段范围记录存储维护与一个或多个无序段相关联的参数，所述一个或多个无序段已经被接收并且对应于与所述一个或多个无序段相关联的一个或多个RDMA消息工作队列元素。协议引擎被耦合到无序段范围记录存储，并且被配置为访问参数以启用对一个或多个RDMA消息的按顺序完成跟踪和报告。

3. 发明申请

US20070165672A1 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：US20070165672A1
公开(公告)日：2007-07-19
申请号：US11357449
申请日：2006-02-17
申请人： Kenneth Keels , Brian Hausauer , Vadim Makhervaks , Eric Schneider
发明人： Kenneth Keels , Brian Hausauer , Vadim Makhervaks , Eric 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）。

4. 发明申请

US20080043750A1 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：US20080043750A1
公开(公告)日：2008-02-21
申请号：US11624849
申请日：2007-01-19
申请人： Kenneth Keels , Jeff Carlson , Brian Hausauer , David Maguire
发明人： Kenneth Keels , Jeff Carlson , Brian Hausauer , David Maguire
IPC分类号： H04L12/56
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。

5. 发明授权

US07149819B2 Work queue to TCP/IP translation 有权
标题翻译：工作队列到TCP / IP转换
公开(公告)号：US07149819B2
公开(公告)日：2006-12-12
申请号：US10737556
申请日：2003-12-16
申请人： Christopher J. Pettey
发明人： Christopher J. Pettey
IPC分类号： G06F15/16 , G06F15/173 , G06F15/177 , G06F15/167 , G06F3/00 , G06F12/00
CPC分类号： H04L67/1097 , H04L29/06 , H04L69/16 , H04L69/161 , H04L69/162 , H04L69/163 , H04L69/168 , H04L69/169 , H04L69/329
摘要： An apparatus and method are provided to offload TCP/IP-related processing, where a server is connected to a plurality of clients, and the plurality of clients is accessed via a TCP/IP network. TCP/IP connections between the plurality of clients and the server are accelerated. The apparatus includes an accelerated connection processor and a target channel adapter. The accelerated connection processor bridges TCP/IP transactions between the plurality of clients and the server, where the accelerated connection processor accelerates the TCP/IP connections by prescribing remote direct memory access operations to retrieve/provide transaction data from/to the server. The target channel adapter is coupled to the accelerated connection processor. The target channel adapter executes the remote direct memory access operations to retrieve/provide the transaction data. The TCP/IP transactions are accelerated by offloading TCP/IP processing otherwise performed by the server to retrieve/provide transaction data.
摘要翻译：提供了一种卸载TCP / IP相关处理的装置和方法，其中服务器连接到多个客户端，并且多个客户端经由TCP / IP网络访问。加速了多个客户端与服务器之间的TCP / IP连接。该装置包括加速连接处理器和目标通道适配器。加速连接处理器跨越多个客户端和服务器之间的TCP / IP事务，其中加速连接处理器通过规定远程直接存储器访问操作来加速TCP / IP连接，以从服务器检索/提供事务数据。目标通道适配器耦合到加速连接处理器。目标通道适配器执行远程直接存储器访问操作以检索/提供事务数据。通过卸载TCP / IP处理来加速TCP / IP事务，否则由服务器执行以检索/提供事务数据。

6. 发明申请

US20070226386A1 Method and apparatus for using a single multi-function adapter with different operating systems 有权
标题翻译：使用具有不同操作系统的单个多功能适配器的方法和设备
公开(公告)号：US20070226386A1
公开(公告)日：2007-09-27
申请号：US11356501
申请日：2006-02-17
申请人： Robert Sharp , Kenneth Keels , Brian Hausauer , John LaCombe
发明人： Robert Sharp , Kenneth Keels , Brian Hausauer , John LaCombe
IPC分类号： G06F13/38
CPC分类号： G06F13/385
摘要： A flexible arrangement allows a single arrangement of Ethernet channel adapter (ECA) hardware functions to appear as needed to conform to various operating system deployment models. A PCI interface presents a logical model of virtual devices appropriate to the relevant operating system. Mapping parameters and values are associated with the packet streams to allow the packet streams to be properly processed according to the presented logical model and needed operations. Mapping occurs at both the host side and at the network side to allow the multiple operations of the ECA to be performed while still allowing proper delivery at each interface.
摘要翻译：灵活的布置允许根据需要单独布置以太网通道适配器（ECA）硬件功能，以符合各种操作系统部署模型。 PCI接口提供适合于相关操作系统的虚拟设备的逻辑模型。映射参数和值与分组流相关联，以允许根据所提出的逻辑模型和所需的操作来适当地处理分组流。映射发生在主机端和网络侧，以允许执行ECA的多个操作，同时仍允许在每个接口处正确传送。

7. 发明申请

US20070198720A1 Method and apparatus for a interfacing device drivers to a single multi-function adapter 有权
标题翻译：用于将接口设备驱动到单个多功能适配器的方法和装置
公开(公告)号：US20070198720A1
公开(公告)日：2007-08-23
申请号：US11356500
申请日：2006-02-17
申请人： James Rucker
发明人： James Rucker
IPC分类号： G06F15/173
CPC分类号： H04L12/66
摘要： Systems which utilize a series of managers to handle resource management. Three types of managers are preferably used, with each manager being in one of two states, active or available. The types of managers are Global Interface Manager (GIM), Resource Manager (RM) and Access Manager (AM). Associated with each device driver for a given function is a GIM. The device driver may be associated with one or more RMs and/or AMs. Among managers of a given type, one is the active manager and all other managers of that specific type are available and work with the active manager to handle resource requests. As there can be RMs for different resources, the active manager concept is applied to the RMs associated with each resource. Mechanisms are present to allow the active manager and related information to be transferred to an available manager if necessary.
摘要翻译：利用一系列管理人员处理资源管理的系统。优选使用三种类型的管理者，每个管理者处于活动状态或可用状态的两种状态之一。管理员的类型是全局接口管理器（GIM），资源管理器（RM）和访问管理器（AM）。与给定功能的每个设备驱动程序相关联的是GIM。设备驱动器可以与一个或多个RM和/或AM相关联。在给定类型的管理器中，一个是活动管理器，并且该特定类型的所有其他管理器可用，并且与主动管理器一起来处理资源请求。由于可以有不同资源的RM，所以主动管理器概念被应用于与每个资源相关联的RM。存在的机制是允许主动管理者和相关信息在需要时转移到可用的管理员。

8. 发明申请

US20060230119A1 Apparatus and method for packet transmission over a high speed network supporting remote direct memory access operations 有权
公开(公告)号：US20060230119A1
公开(公告)日：2006-10-12
申请号：US11315685
申请日：2005-12-22
申请人： Brian Hausauer , Tristan Gross , Kenneth Keels , Shaun Wandler
发明人： Brian Hausauer , Tristan Gross , Kenneth Keels , Shaun 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.

9. 发明授权

US07401126B2 Transaction switch and network interface adapter incorporating same 有权
标题翻译：交易开关和网络接口适配器结合相同
公开(公告)号：US07401126B2
公开(公告)日：2008-07-15
申请号：US09817008
申请日：2001-03-23
申请人： Richard E. Pekkala , Christopher J. Pettey , Lawrence H. Rubin , Shaun V. Wandler
发明人： Richard E. Pekkala , Christopher J. Pettey , Lawrence H. Rubin , Shaun V. Wandler
IPC分类号： G06F15/16
CPC分类号： H04L49/103 , H04L49/3018 , H04L49/3027
摘要： A transaction switch and integrated circuit incorporating said for switching data through a shared memory between a plurality of data interfaces that support different data protocols, namely packetized interfaces like InfiniBand and addressed data interfaces like PCI. The transaction switch also switches transactions commanding data transfers between the disparate protocol data interfaces and between those of the data interfaces having like protocols. For example, the transaction switch enables a hybrid InfiniBand channel adapter/switch to perform both InfiniBand packet to local bus protocol data transfers through the shared memory as well as InfiniBand packet switching between the multiple InfiniBand interfaces. The transactions are tailored for each interface type to include information needed by the particular interface type to perform a data transfer. The shared buffer memory, dynamically allocated by the transaction switch on a first-come-first serve basis, results in more efficient use of precious buffering resources than in a statically allocated scheme.
摘要翻译：一种交易开关和集成电路，其包括用于在支持不同数据协议的多个数据接口之间的共享存储器切换数据，即诸如InfiniBand的分组接口和诸如PCI的寻址数据接口。事务处理交换机还切换命令在不同的协议数据接口之间以及具有类似协议的数据接口之间的数据传输的事务。例如，事务交换机使混合InfiniBand通道适配器/交换机能够通过共享内存来执行InfiniBand数据包到本地总线协议数据传输以及多个InfiniBand接口之间的InfiniBand数据包交换。交易针对每个接口类型量身定制，以包括特定接口类型所需的信息来执行数据传输。以先到先得的方式动态分配的共享缓冲存储器比静态分配方案更有效地利用了宝贵的缓冲资源。

10. 发明授权

US07149817B2 Infiniband TM work queue to TCP/IP translation 有权
标题翻译： Infiniband TM工作队列到TCP / IP转换
公开(公告)号：US07149817B2
公开(公告)日：2006-12-12
申请号：US09784761
申请日：2001-02-15
申请人： Christopher J. Pettey
发明人： Christopher J. Pettey
IPC分类号： G06F15/16 , G06F15/173 , G06F15/177 , G06F15/00 , G06F3/00
CPC分类号： H04L67/1097 , H04L29/06 , H04L69/16 , H04L69/161 , H04L69/162 , H04L69/163 , H04L69/168 , H04L69/169 , H04L69/329
摘要： A TCP-aware target adapter for accelerating TCP/IP connections between clients and servers, where the servers are interconnected over an Infiniband™ fabric and the clients are interconnected over a TCP/IP-based network. The TCP-aware target adapter includes an accelerated connection processor and a target channel adapter. The accelerated connection processor bridges TCP/IP transactions between the clients and the servers. The accelerated connection processor accelerates the TCP/IP connections prescribing Infiniband remote direct memory access operations to retrieve/provide transaction data from/to the servers. The target channel adapter is coupled to the accelerated connection processor. The target channel adapter supports Infiniband operations with the servers, including execution of the remote direct memory access operations to retrieve/provide the transaction data. The TCP/IP connections are accelerated by offloading TCP/IP processing otherwise performed by the servers to retrieve/provide said transaction data.
摘要翻译：用于加速客户端和服务器之间的TCP / IP连接的TCP感知目标适配器，其中服务器通过Infiniband（TM）架构互连，客户端通过基于TCP / IP的网络进行互连。 TCP感知目标适配器包括加速连接处理器和目标通道适配器。加速连接处理器在客户端和服务器之间桥接TCP / IP事务。加速连接处理器加速了TCP / IP连接，规定了Infiniband远程直接内存访问操作，以从服务器检索/提供事务数据。目标通道适配器耦合到加速连接处理器。目标通道适配器支持与服务器的Infiniband操作，包括执行远程直接内存访问操作以检索/提供事务数据。通过卸载TCP / IP处理来加速TCP / IP连接，否则由服务器执行以检索/提供所述事务数据。

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