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1. 发明授权

US10164868B2 Hypervisor routing between networks in a virtual networking environment 有权
公开(公告)号：US10164868B2
公开(公告)日：2018-12-25
申请号：US13456476
申请日：2012-04-26
申请人： Robert Cowart , David Hadas , Daniel J. Martin , Bruce Ratcliff , Renato Recio
发明人： Robert Cowart , David Hadas , Daniel J. Martin , Bruce Ratcliff , Renato Recio
IPC分类号： H04L12/707 , H04L12/723 , H04L29/06 , H04L12/935 , H04L12/741 , H04L12/775
摘要： A physical host executes a virtual machine monitor (VMM) that instantiates a source virtual machine (VM). In response to the VMM receiving from the source VM a packet specifying a first destination address of a destination VM and a second destination address of a default gateway, the VMM determines whether the packet can be communicated to the destination VM without the packet being routed by the default gateway. In response to the VMM determining that the packet can be communicated to the destination VM without the packet being routed by the default gateway, the VMM forwards the packet to the destination VM such that the packet bypasses routing by the default gateway.

2. 发明申请

US20070097950A1 Routing mechanism in PCI multi-host topologies using destination ID field 失效
标题翻译：使用目的地ID字段的PCI多主机拓扑中的路由机制
公开(公告)号：US20070097950A1
公开(公告)日：2007-05-03
申请号：US11260621
申请日：2005-10-27
申请人： William Boyd , Douglas Freimuth , William Holland , Steven Hunter , Renato Recio , Steven Thurber , Madeline Vega
发明人： William Boyd , Douglas Freimuth , William Holland , Steven Hunter , Renato Recio , Steven Thurber , Madeline Vega
IPC分类号： H04L12/28
CPC分类号： G06F13/4022 , H04L29/1283 , H04L61/6018
摘要： Method and system for address routing in a distributed computing system, such as a distributed computing system that uses PCI Express protocol to communicate over an I/O fabric. A destination identifier is provided to identify a physical or virtual host or end point. When a physical or virtual host or end point receives a PCI data packet it compares a list of source identifiers with destination identifiers to determine if a source identifier included in the transaction packet is associated with a destination identifier included in the transaction packet to determine if the transaction packet has a valid association. If the transaction packet has a valid association, it is routed to the target device. The present invention enables each host that attaches to PCI bridges or switches and shares a set of common PCI devices to have its own PCI 64-bit address space and enables the routing of PCI transaction packets between multiple hosts and adapters, through a PCI switched-fabric bus using a destination identifier.
摘要翻译：分布式计算系统中的地址路由方法和系统，例如使用PCI Express协议通过I / O架构进行通信的分布式计算系统。提供目的地标识符以标识物理或虚拟主机或终点。当物理或虚拟主机或终点接收到PCI数据分组时，将源标识符的列表与目的地标识符进行比较，以确定包括在事务分组中的源标识符是否与包括在事务分组中的目的地标识符相关联，以确定是否事务包具有有效的关联。如果事务包具有有效关联，则将其路由到目标设备。本发明使得连接到PCI网桥或交换机并且共享一组公共PCI设备的每个主机能够具有其自己的PCI 64位地址空间，并且能够通过PCI交换机地址在多个主机和适配器之间路由PCI事务包， Fabric总线使用目的地标识符。

3. 发明申请

US20070097949A1 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：US20070097949A1
公开(公告)日：2007-05-03
申请号：US11260618
申请日：2005-10-27
申请人： William Boyd , Douglas Freimuth , William Holland , Steven Hunter , Renato Recio , Steven Thurber , Madeline Vega
发明人： William Boyd , Douglas Freimuth , William Holland , Steven Hunter , Renato Recio , Steven Thurber , Madeline Vega
IPC分类号： G06F13/00 , H04L12/28
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。

4. 发明申请

US20070097871A1 Method of routing I/O adapter error messages in a multi-host environment 失效
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：US20070097871A1
公开(公告)日：2007-05-03
申请号：US11260619
申请日：2005-10-27
申请人： William Boyd , Douglas Freimuth , William Holland , Steven Hunter , Renato Recio , Steven Thurber , Madeline Vega
发明人： William Boyd , Douglas Freimuth , William Holland , Steven Hunter , Renato Recio , Steven Thurber , Madeline Vega
IPC分类号： H04J3/14
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。

5. 发明申请

US20070061493A1 System and method for out of user space I/O directly between a host system and a physical adapter using file based linear block address translation 失效
标题翻译：用户空间I / O的系统和方法直接在主机系统和物理适配器之间使用基于文件的线性块地址转换
公开(公告)号：US20070061493A1
公开(公告)日：2007-03-15
申请号：US11216832
申请日：2005-08-31
申请人： William Boyd , John Hufferd , Agustin Mena , Renato Recio , Madeline Vega
发明人： William Boyd , John Hufferd , Agustin Mena , Renato Recio , Madeline Vega
IPC分类号： G06F3/00
CPC分类号： H04L67/1063 , G06F9/468 , G06F9/545
摘要： A system, method, and computer program product that enables user space middleware or applications to pass file name based storage requests directly to a physical I/O Adapter without run-time involvement from the local Operating System (OS) are provided. A mechanism is provided for using a file protection table (FPT) data structure, which may include a file name protection table (FNPT) and file extension protection table (FEPT), to control user space and out of user space Input/Output (I/O) operations. The FNPT has an entry for each file managed by the OS′ file system and points to a segment of the FEPT. Each entry in the FEPT may include a protection domain, along with other protection table context information, against which I/O requests may be checked to determine if an application instance that submitted the I/O requests may access the file identified in the I/O requests.
摘要翻译：提供了一种使用户空间中间件或应用程序可以将基于文件名的存储请求直接传递到物理I / O适配器的系统，方法和计算机程序产品，而无需本地操作系统（OS）的运行时参与。提供了一种用于使用文件保护表（FPT）数据结构的机制，其可以包括文件名保护表（FNPT）和文件扩展保护表（FEPT），以控制用户空间和用户空间输入/输出（I / O）操作。 FNPT具有由OS文件系统管理的每个文件的条目，并指向FEPT的一个段。 FEPT中的每个条目可以包括保护域以及其他保护表上下文信息，可以检查哪些I / O请求以确定提交I / O请求的应用实例是否可以访问在I / O请求中标识的文件， O请求。

6. 发明申请

US20060288125A1 System and method for user space operations for direct I/O between an application instance and an I/O adapter 有权
标题翻译：用于应用程序实例和I / O适配器之间的直接I / O的用户空间操作的系统和方法
公开(公告)号：US20060288125A1
公开(公告)日：2006-12-21
申请号：US11135542
申请日：2005-05-23
申请人： William Boyd , John Hufferd , Agustin Mena , Renato Recio , Madeline Vega
发明人： William Boyd , John Hufferd , Agustin Mena , Renato Recio , Madeline Vega
IPC分类号： G06F3/00
CPC分类号： G06F9/544 , G06F9/5011 , G06F9/545
摘要： The present invention provides a system, method, and computer program product that enables application instances to pass block mode storage requests directly to a physical I/O adapter without run-time involvement from the local operating system or hypervisor. In one aspect of the present invention, a mechanism is provided for determining whether a user space operation is a resource management operation of a work processing operation. If the user space operation is a resource management operation, appropriate functions are performed to either query, create, modify or destroy resource allocations in the I/O adapter. If the user space operation is a work processing operation, appropriate functions are performed to either create work queue entries and inform the I/O adapter of the work queue entries or to retrieve completion queue entries for work queue entries whose processing has been completed by the I/O adapter.
摘要翻译：本发明提供一种系统，方法和计算机程序产品，其使得应用程序实例能够将块模式存储请求直接传递到物理I / O适配器，而无需本地操作系统或管理程序的运行时间。在本发明的一个方面中，提供了一种用于确定用户空间操作是否是工作处理操作的资源管理操作的机制。如果用户空间操作是资源管理操作，则执行适当的功能来查询，创建，修改或销毁I / O适配器中的资源分配。如果用户空间操作是工作处理操作，则执行适当的功能来创建工作队列条目并通知I / O适配器工作队列条目，或者为工作队列条目检索完成队列条目， I / O适配器。

7. 发明申请

US20060265525A1 System and method for processor queue to linear block address translation using protection table control based on a protection domain 审中-公开
标题翻译：基于保护域的处理器队列到线性块地址转换的系统和方法使用保护表控制
公开(公告)号：US20060265525A1
公开(公告)日：2006-11-23
申请号：US11135266
申请日：2005-05-23
申请人： William Boyd , John Hufferd , Agustin Mena , Renato Recio , Madeline Vega
发明人： William Boyd , John Hufferd , Agustin Mena , Renato Recio , Madeline Vega
IPC分类号： G06F3/00
CPC分类号： G06F3/0659 , G06F3/0611 , G06F3/067 , G06F21/805
摘要： The present invention provides a system, method, and computer program product that enables user space middleware or applications to pass block mode storage requests directly to a physical I/O Adapter without run-time involvement from the local Operating System (OS), or, in a virtual system, the local Hypervisor. Specifically, the present invention is directed to a mechanism for providing and using a linear block address (LBA) translation protection table (TPT) to control user space and out of user space Input/Output (I/O) operations. In one aspect of the present invention, the LBATPT includes an adapter protection table that has entries for each portion of a storage device. Each entry may include a key instance and protection domain, along with other protection table context information, against which I/O requests may be checked to determine if an application instance that submitted the I/O requests may access the LBAs identified in the I/O requests.
摘要翻译：本发明提供了一种系统，方法和计算机程序产品，其使得用户空间中间件或应用程序能够将块模式存储请求直接传递到物理I / O适配器，而无需本地操作系统（OS）的运行时间，在虚拟系统中，本地管理程序。具体地，本发明涉及一种用于提供和使用线性块地址（LBA）转换保护表（TPT）以控制用户空间和用户空间输入/输出（I / O）操作的机制。在本发明的一个方面，LBATPT包括适配器保护表，其具有用于存储设备的每个部分的条目。每个条目可以包括密钥实例和保护域以及其他保护表上下文信息，针对哪些I / O请求可以被检查以确定提交I / O请求的应用实例是否可以访问I / O请求。

8. 发明申请

US20060212563A1 Split socket send queue apparatus and method with efficient queue flow control, retransmission and sack support mechanisms 失效
公开(公告)号：US20060212563A1
公开(公告)日：2006-09-21
申请号：US11418606
申请日：2006-05-05
申请人： William Boyd , Jean Calvignac , Chih-Jen Chang , Douglas Joseph , Renato Recio
发明人： William Boyd , Jean Calvignac , Chih-Jen Chang , Douglas Joseph , Renato Recio
IPC分类号： G06F15/173
CPC分类号： H04L47/10 , H04L47/193 , H04L69/12 , H04L69/16 , H04L69/161 , H04L69/162
摘要： A mechanism for offloading the management of send queues in a split socket stack environment, including efficient split socket queue flow control and TCP/IP retransmission support. As consumers initiate send operations, send work queue entries (SWQEs) are created by an Upper Layer Protocol (ULP) and written to the send work queue (SWQ). The Internet Protocol Suite Offload Engine (IPSOE) is notified of a new entry to the SWQ and it subsequently reads this entry that contains pointers to the data that is to be transmitted. After the data is transmitted and acknowledgments are received, the IPSOE creates a completion queue entry (CQE) that is written into the completion queue (CQ). After the CQE is written, the ULP subsequently processes the entry and removes it from the CQE, freeing up a space in both the SWQ and CQ. The number of entries available in the SWQ are monitored by the ULP so that it does not overwrite any valid entries. Likewise, the IPSOE monitors the number of entries available in the CQ, so as not overwrite the CQ. The flow control between the ULP and the IPSOE is credit based. The passing of CQ credits is the only explicit mechanism required to manage flow control of both the SWQ and the CQ between the ULP and the IPSOE.

9. 发明申请

US20060209724A1 Method and system for fully trusted adapter validation of addresses referenced in a virtual host transfer request 有权
公开(公告)号：US20060209724A1
公开(公告)日：2006-09-21
申请号：US11068664
申请日：2005-02-28
申请人： Richard Arndt , Giora Biran , Harvey Kiel , Vadim Makhervaks , Renato Recio , Leah Shalev , Jaya Srikrishnan
发明人： Richard Arndt , Giora Biran , Harvey Kiel , Vadim Makhervaks , Renato Recio , Leah Shalev , Jaya Srikrishnan
IPC分类号： H04L12/28
CPC分类号： H04L49/901 , H04L49/90
摘要： A method, computer program product, and distributed data processing system that allows a single physical I/O adapter, such as a PCI, PCI-X, or PCI-E adapter, to validate that a direct memory access address referenced by an incoming I/O transaction that was initiated through a memory mapped I/O operation are associated with a virtual adapter or virtual resource that is referenced by the incoming memory mapped I/O operation is provided. Specifically, the present invention is directed to a mechanism for sharing conventional PCI (Peripheral Component Interconnect) I/O adapters, PCI-X I/O Adapters, PCI-Express I/O Adapters, and, in general, any I/O adapter that uses a memory mapped I/O interface for communications. A single physical I/O adapter validates that one or more direct memory access addresses referenced by an incoming I/O transaction initiated through a memory mapped I/O operation are associated with a virtual adapter or virtual resource that is referenced by the incoming memory mapped I/O operation.

10. 发明申请

US20060195673A1 Method, apparatus, and computer program product for coordinating error reporting and reset utilizing an I/O adapter that supports virtualization 失效
公开(公告)号：US20060195673A1
公开(公告)日：2006-08-31
申请号：US11065823
申请日：2005-02-25
申请人： Richard Arndt , Patrick Buckland , Harvey Kiel , Renato Recio , Jaya Srikrishnan
发明人： Richard Arndt , Patrick Buckland , Harvey Kiel , Renato Recio , Jaya Srikrishnan
IPC分类号： G06F12/14
CPC分类号： G06F11/0793 , G06F11/0712 , G06F11/0724 , G06F11/0745
摘要： A method, apparatus, and computer program product are disclosed in a shared processor data processing system for coordinating error reporting for and resetting of a physical I/O adapter that supports virtualization. The physical I/O adapter is virtualized by generating virtual I/O adapters that each represent a portion of the physical I/O adapter. Each one of the virtual I/O adapters is assigned to a different one of client logical partitions. A determination is made regarding whether the physical I/O adapter may have experienced an error. If the physical I/O adapter has experienced an error, all of the client logical partitions are notified about the error and a recovery of the physical I/O adapter is coordinated among all of the client logical partitions by waiting for each client logical partition to acknowledge the error notification before the physical I/O adapter is reset.

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