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1. 发明授权

US08769168B2 Method for communicating with a network adapter using a queue data structure and cached address translations 有权
标题翻译：使用队列数据结构和缓存地址转换与网络适配器进行通信的方法
公开(公告)号：US08769168B2
公开(公告)日：2014-07-01
申请号：US11550191
申请日：2006-10-17
申请人： Daniel F. Moertl , Renato J. Recio , Claudia A. Salzberg , Steven M. Thurber
发明人： Daniel F. Moertl , Renato J. Recio , Claudia A. Salzberg , Steven M. Thurber
IPC分类号： G06F12/00
CPC分类号： G06F13/102
摘要： Mechanisms for communicating with a network adapter using a queue data structure are provided. A device driver invokes device driver services for initializing address translation and protection table (ATPT) entries in a root complex for the queue data structure. The device driver services return untranslated addresses to the device driver which are in turn provided to the network adapter. In response to retrieving a queue element from the queue data structure, the network adapter may request a translation of an untranslated address specified in the queue element and store the translated address in the network adapter prior to receiving a data packet targeting a buffer associated with the queue element.
摘要翻译：提供了使用队列数据结构与网络适配器进行通信的机制。设备驱动程序调用设备驱动程序服务以初始化队列数据结构的根组合中的地址转换和保护表（ATPT）条目。设备驱动程序服务将未翻译的地址返回给设备驱动程序，这些设备驱动程序又提供给网络适配器。响应于从队列数据结构检索队列元素，网络适配器可以请求在队列元素中指定的非翻译地址的转换，并且在接收到针对与队列元素

2. 发明授权

US08271604B2 Initializing shared memories for sharing endpoints across a plurality of root complexes 失效
标题翻译：初始化跨多个根组合共享端点的共享内存
公开(公告)号：US08271604B2
公开(公告)日：2012-09-18
申请号：US11612522
申请日：2006-12-19
申请人： Douglas M. Freimuth , Renato J. Recio , Claudia A. Salzberg , Steven M. Thurber , Jacobo A. Vargas
发明人： Douglas M. Freimuth , Renato J. Recio , Claudia A. Salzberg , Steven M. Thurber , Jacobo A. Vargas
IPC分类号： G06F15/167 , G06F15/16 , G06F3/00
CPC分类号： G06F12/1009 , G06F12/145
摘要： A mechanism for initializing shared memories for sharing endpoints across a plurality of root complexes is provided. A multi-root PCIe manager (MR-PCIM) initializes the shared memory between root complexes and endpoints by discovering the PCIe switch fabric by traversing all the links accessible through the interconnected switches of the PCIe switch fabric. As the links are traversed, the MR-PCIM compares information obtained for each of the root complexes and endpoints to determine which endpoints and root complexes reside on the same blade. A virtual PCIe tree data structure is then generated that ties the endpoints available on the PCIe switch fabric to each root complex. The MR-PCIM, or a single-root PCIe manager (SR-PCIM), may then assign each endpoint and root complex a base and limit within the PCIe memory address space the endpoint belongs to.
摘要翻译：提供了用于初始化用于跨多个根复合体共享端点的共享存储器的机制。多根PCIe管理器（MR-PCIM）通过遍历通过PCIe交换矩阵的互连交换机可访问的所有链路来发现PCIe交换结构，来初始化根配置和端点之间的共享内存。随着链接的遍历，MR-PCIM比较了每个根复合体和端点获得的信息，以确定哪个端点和根复合体驻留在同一个刀片上。然后生成虚拟PCIe树数据结构，将PCIe交换结构上可用的端点与每个根组合相关联。然后，MR-PCIM或单根PCIe管理器（SR-PCIM）可以在端点所属的PCIe存储器地址空间内分配每个端点和根复合体的基极和限制。

3. 发明申请

US20120185632A1 IMPLEMENTING PCI-EXPRESS MEMORY DOMAINS FOR SINGLE ROOT VIRTUALIZED DEVICES 有权
标题翻译：针对单根虚拟化设备实现PCI-EXPRESS MEMORY域
公开(公告)号：US20120185632A1
公开(公告)日：2012-07-19
申请号：US13007800
申请日：2011-01-17
申请人： Eric N. Lais , Gregory M. Nordstrom , Steven M. Thurber
发明人： Eric N. Lais , Gregory M. Nordstrom , Steven M. Thurber
IPC分类号： G06F13/20
CPC分类号： G06F13/404
摘要： A method, system and computer program product are provided for implementing PCI-Express memory domains for single root virtualized devices. A PCI host bridge (PHB) includes a memory mapped IO (MMIO) domain descriptor (MDD) and an MMIO Domain Table (MDT) are used to associate MMIO domains with PCI memory VF BAR spaces. One MDD is provided for each unique VF BAR space size per bus segment connecting a single root IO virtualization (SRIOV) device to the PCI host bridge (PHB). The MDT used with the MDD includes having a number of entries limited to a predefined total number of SRIOV VFs to be configured. A VF BAR Stride, which may be further implemented as a VF BAR Stride Capability Structure, is provided to reduce the number of MDDs required to map SRIOV VF BAR spaces. A particular definition of the MDD is provided to reduce the number of MDDs required to at most one per SRIOV bus segment below a PHB.
摘要翻译：提供了一种用于实现单根虚拟化设备的PCI-Express存储域的方法，系统和计算机程序产品。 PCI主机桥（PHB）包括内存映射IO（MMIO）域描述符（MDD），MMIO域表（MDT）用于将MMIO域与PCI内存VF BAR空间相关联。为每个总线段的每个独特的VF BAR空间大小提供一个MDD，将单个根IO虚拟化（SRIOV）设备连接到PCI主机桥（PHB）。与MDD一起使用的MDT包括许多条目限于要配置的预定义的SRIOV VF的总数。提供可以进一步实现为VF BAR步幅能力结构的VF BAR Stride，以减少映射SRIOV VF BAR空间所需的MDD数量。提供了MDD的特定定义，以减少PHB以下每个SRIOV总线段中每个至多一个MDD所需的MDD数量。

4. 发明授权

US07930598B2 Broadcast of shared I/O fabric error messages in a multi-host environment to all affected root nodes 有权
标题翻译：在多主机环境中向所有受影响的根节点广播共享的I / O结构错误消息
公开(公告)号：US07930598B2
公开(公告)日：2011-04-19
申请号：US12355931
申请日：2009-01-19
申请人： William T. Boyd , Douglas M. Freimuth , William G. Holland , Steven W. Hunter , Renato J. Recio , Steven M. Thurber , Madeline Vega
发明人： William T. Boyd , Douglas M. Freimuth , William G. Holland , Steven W. Hunter , Renato J. Recio , Steven M. Thurber , Madeline Vega
IPC分类号： G06F11/00
CPC分类号： G06F11/0784 , G06F11/0712 , G06F11/0724 , G06F11/0745 , H04L2001/0093
摘要： A method, mechanism and computer usable medium is provided for distributing I/O fabric errors to the appropriate root nodes in a multi-root environment. The case where the I/O fabric is attached to more than one root node and where each root can potentially share with the other roots the I/O adapter (IOA) resources which are attached to the I/O is addressed. Additionally, a method, mechanism and computer usable medium is provided by which errors detected in an I/O fabric may be routed to all root nodes which may be affected by the error, while not being reported to the root nodes that will not be affected by those errors. In particular, distributed computing system which uses the PCI Express protocol to communicate over the I/O fabric is addressed.
摘要翻译：提供了一种方法，机制和计算机可用介质，用于在多根环境中向适当的根节点分发I / O结构错误。 I / O结构连接到多个根节点的情况下，并且每个根可以与其他根可能共享的情况下，附加到I / O的I / O适配器（IOA）资源被寻址。另外，提供了一种方法，机制和计算机可用介质，通过该方法，机构和计算机可用介质可以将在I / O结构中检测到的错误路由到可能受到错误影响的所有根节点，同时不向根节点报告不受影响由这些错误。特别地，解决了使用PCI Express协议在I / O结构上进行通信的分布式计算系统。

5. 发明授权

US07913024B2 Differentiating traffic types in a multi-root PCI express environment 失效
标题翻译：在多根PCI Express环境中区分流量类型
公开(公告)号：US07913024B2
公开(公告)日：2011-03-22
申请号：US12330578
申请日：2008-12-09
申请人： Aaron C. Brown , Douglas M. Freimuth , Renato J. Recio , Steven M. Thurber
发明人： Aaron C. Brown , Douglas M. Freimuth , Renato J. Recio , Steven M. Thurber
IPC分类号： G06F13/36
CPC分类号： G06F13/4022
摘要： Mechanisms for differentiating traffic types in a multi-root PCI Express environment are provided. The mechanisms generate a first mapping data structure that, for each single-root virtual hierarchy in the multi-root data processing system, associates a plurality of traffic classes with a plurality of priority groups and maps each traffic class in the plurality of traffic classes to a corresponding virtual channel in a plurality of virtual channels. Moreover, a second mapping data structure is generated that maps each virtual channel in the plurality of virtual channels to corresponding virtual link in a plurality of virtual links of the multi-root data processing system. Traffic of a particular priority group is routed from a single-root virtual hierarchy to a particular virtual link in the plurality of the virtual links based on the first mapping data structure and second mapping data structure.
摘要翻译：提供了在多根PCI Express环境中区分流量类型的机制。这些机制产生第一映射数据结构，对于多根数据处理系统中的每个单根虚拟层次结构，将多个业务类与多个优先级组相关联并将多个业务类中的每个业务类映射到在多个虚拟通道中的对应的虚拟通道。此外，生成将多个虚拟信道中的每个虚拟信道映射到多根数据处理系统的多个虚拟链路中的相应虚拟链路的第二映射数据结构。基于第一映射数据结构和第二映射数据结构，特定优先级组的业务从单根虚拟层次被路由到多个虚拟链路中的特定虚拟链路。

6. 发明授权

US07889667B2 Method of routing I/O adapter error messages in a multi-host environment 有权
标题翻译：在多主机环境中路由I / O适配器错误消息的方法
公开(公告)号：US07889667B2
公开(公告)日：2011-02-15
申请号：US12134872
申请日：2008-06-06
申请人： William T. Boyd , Douglas M. Freimuth , William G. Holland , Steven W. Hunter , Renato J. Recio , Steven M. Thurber , Madeline Vega
发明人： William T. Boyd , Douglas M. Freimuth , William G. Holland , Steven W. Hunter , Renato J. Recio , Steven M. Thurber , Madeline Vega
IPC分类号： H04B7/212
CPC分类号： G06F11/0775 , G06F11/0712 , G06F11/0724 , G06F11/0784
摘要： A method and apparatus is provided for routing error messages in a distributed computer system comprising multiple root nodes, and further comprising one or more PCI switches and one or more I/O adapters, wherein each root node includes one or more system images. In one useful embodiment, a method is provided for routing I/O error messages to root nodes respectively associated with the errors contained in the messages. The method includes detecting occurrence of an error at a specified one of the adapters, wherein the error affects one of the system images, and generating an error message at the specified adapter. The method further comprises routing the error message from the specified adapter to the particular root node that includes the affected system image. The error message is then selectively processed at the particular root node, in order to identify the affected system image. Usefully, the step of routing the error message includes using a bus/device/function number associated with the error, together with a routing table located in one of the PCI switches, to route the error message to the correct root node and system image.
摘要翻译：提供了一种用于在包括多个根节点的分布式计算机系统中路由错误消息的方法和装置，并且还包括一个或多个PCI交换机和一个或多个I / O适配器，其中每个根节点包括一个或多个系统映像。在一个有用的实施例中，提供了一种用于将I / O错误消息路由到分别与消息中包含的错误相关联的根节点的方法。该方法包括检测指定的一个适配器中的错误的发生，其中该错误影响系统映像之一，并在指定的适配器处生成错误消息。该方法还包括将错误消息从指定的适配器路由到包括受影响的系统映像的特定根节点。然后在特定根节点处选择性地处理错误消息，以便识别受影响的系统映像。有用的是，路由错误消息的步骤包括使用与错误相关联的总线/设备/功能号码以及位于其中一个PCI交换机中的路由表将错误消息路由到正确的根节点和系统映像。

7. 发明授权

US07860930B2 Communication between host systems using a transaction protocol and shared memories 失效
标题翻译：使用事务协议和共享存储器的主机系统之间的通信
公开(公告)号：US07860930B2
公开(公告)日：2010-12-28
申请号：US11612530
申请日：2006-12-19
申请人： Douglas M. Freimuth , Renato J. Recio , Claudia A. Salzberg , Steven M. Thurber , Jacobo A. Vargas
发明人： Douglas M. Freimuth , Renato J. Recio , Claudia A. Salzberg , Steven M. Thurber , Jacobo A. Vargas
IPC分类号： G06F15/16
CPC分类号： G06F13/4022 , G06F13/1652
摘要： A method mechanism is provided for communication between host systems using a transaction protocol and shared memories. Shared memories are initialized based on a discovery process in a communication fabric such that at least one endpoint has address ranges in shared memories of at least two host systems. A transaction oriented protocol may be established for using the shared memories of the host systems to communicate between root complexes and endpoints of the same or different host systems. The transaction oriented protocol specifies a series of transactions to be performed by the various elements, e.g., root complex or endpoint, to push or pull data. Various combinations of push and pull transactions may be utilized.
摘要翻译：提供了一种用于使用事务协议和共享存储器在主机系统之间进行通信的方法机制。基于通信结构中的发现过程来初始化共享存储器，使得至少一个端点具有至少两个主机系统的共享存储器中的地址范围。可以建立面向事务的协议，以使用主机系统的共享存储器在相同或不同的主机系统的根配合和端点之间进行通信。面向事务的协议指定要由各种元素执行的一系列事务，例如根复合或端点，以推或拉数据。可以利用推挽事务的各种组合。

8. 发明申请

US20090276551A1 Native and Non-Native I/O Virtualization in a Single Adapter 有权
标题翻译：单一适配器中的本地和非本机I / O虚拟化
公开(公告)号：US20090276551A1
公开(公告)日：2009-11-05
申请号：US12114970
申请日：2008-05-05
申请人： Aaron C. Brown , Douglas M. Freimuth , Renato J. Recio , Steven M. Thurber
发明人： Aaron C. Brown , Douglas M. Freimuth , Renato J. Recio , Steven M. Thurber
IPC分类号： G06F13/12 , G06F13/00
CPC分类号： G06F13/102
摘要： Mechanisms for enabling both native and non-native input/output virtualization (IOV) in a single I/O adapter are provided. The mechanisms allow a system with a large number of logical partitions (LPARs) and system images to use IOV to share a native IOV enabled I/O adapter or endpoint that does not implement the necessary number of virtual functions (VFs) for each LPAR and system image. A number of VFs supported by the I/O adapter, less one, are assigned to LPARs and system images so that they may make use of native IOV using these VFs. The remaining VF is associated with a virtual intermediary (VI) which handles non-native IOV of the I/O adapter. Any remaining LPARs and system images share the I/O adapter using the non-native IOV via the VI. Thus, any number of LPARs and system images may share the same I/O adapter or endpoint.
摘要翻译：提供了在单个I / O适配器中实现本机和非本机输入/输出虚拟化（IOV）的机制。这些机制允许具有大量逻辑分区（LPAR）和系统映像的系统使用IOV来共享不为每个LPAR实现必需数量的虚拟函数（VF）的本机IOV使能的I / O适配器或端点，系统图像。 I / O适配器支持的多个VF分配给LPAR和系统映像，从而可以利用这些VF使用本机IOV。剩余的VF与处理I / O适配器的非本地IOV的虚拟中介（VI）相关联。任何剩余的LPAR和系统映像都使用非本机IOV通过VI共享I / O适配器。因此，任何数量的LPAR和系统映像可以共享相同的I / O适配器或端点。

9. 发明授权

US07506094B2 Method using a master node to control I/O fabric configuration in a multi-host environment 失效
标题翻译：使用主节点在多主机环境中控制I / O架构配置的方法
公开(公告)号：US07506094B2
公开(公告)日：2009-03-17
申请号：US12136009
申请日：2008-06-09
申请人： William T. Boyd , Douglas M. Freimuth , William G. Holland , Steven W. Hunter , Renato J. Recio , Steven M. Thurber , Madeline Vega
发明人： William T. Boyd , Douglas M. Freimuth , William G. Holland , Steven W. Hunter , Renato J. Recio , Steven M. Thurber , Madeline Vega
IPC分类号： G06F13/00
CPC分类号： G06F13/4022
摘要： A method is directed to use of a master root node, in a distributed computer system provided with multiple root nodes, to control the configuration of routings through an I/O switched-fabric. One of the root nodes is designated as the master root node or PCI Configuration Manager (PCM), and is operable to carry out the configuration while each of the other root nodes remains in a quiescent or inactive state. In one useful embodiment pertaining to a system of the above type, that includes multiple root nodes, PCI switches, and PCI adapters available for sharing by different root nodes, a method is provided wherein the master root node is operated to configure routings through the PCI switches. Respective routings are configured between respective root nodes and the PCI adapters, wherein each of the configured routings corresponds to only one of the root nodes. A particular root node is enabled to access each of the PCI adapters that are included in any configured routing that corresponds to the particular root node. At the same time, the master root node writes into a particular root node only the configured routings that correspond to the particular root node. Thus, the particular root node is prevented from accessing an adapter that is not included in its corresponding routings.
摘要翻译：一种方法涉及在具有多个根节点的分布式计算机系统中使用主根节点来控制通过I / O交换结构的路由的配置。一个根节点被指定为主根节点或PCI配置管理器（PCM），并且可操作以在每个其他根节点保持处于静态或非活动状态的同时执行配置。在与上述类型的系统相关的一个有用的实施例中，其包括可用于不同根节点共享的多个根节点，PCI交换机和PCI适配器，提供了一种方法，其中主根节点被操作以配置通过PCI的路由开关。相应的路由被配置在相应的根节点和PCI适配器之间，其中每个配置的路由仅对应于根节点之一。特定根节点能够访问包含在与特定根节点对应的任何配置的路由中的每个PCI适配器。同时，主根节点将特定根节点只写入与特定根节点对应的已配置路由。因此，防止特定根节点访问未包括在其对应的路由中的适配器。

10. 发明授权

US07492723B2 Mechanism to virtualize all address spaces in shared I/O fabrics 失效
标题翻译：虚拟化共享I / O结构中所有地址空间的机制
公开(公告)号：US07492723B2
公开(公告)日：2009-02-17
申请号：US11176922
申请日：2005-07-07
申请人： William T. Boyd , Douglas M. Freimuth , William G. Holland , Steven W. Hunter , Renato J. Recio , Steven M. Thurber , Madeline Vega
发明人： William T. Boyd , Douglas M. Freimuth , William G. Holland , Steven W. Hunter , Renato J. Recio , Steven M. Thurber , Madeline Vega
IPC分类号： H04L12/50
CPC分类号： G06F13/4045
摘要： A mechanism, method and computer usable medium is provided for each root node of a multiple root node system and its own independent address space. This mechanism also allows multiple system images within the same root node to have their own independent address spaces. A mechanism is also provided for incorporating legacy root node and input/output adapters that are non-aware of the mechanisms introduced by this invention. Input/ output adapters which implement this invention may also have the number of functions that they support greatly expanded beyond the present eight functions per input/output adapter.
摘要翻译：为多根节点系统的每个根节点及其自己的独立地址空间提供了一种机制，方法和计算机可用介质。该机制还允许同一根节点内的多个系统映像具有自己的独立地址空间。还提供了一种机制，用于结合不知道本发明引入的机制的传统根节点和输入/输出适配器。实现本发明的输入/输出适配器还可以具有超过每个输入/输出适配器的当前八个功能大大扩展的功能数量。

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