公开(公告)号：US20080235430A1

公开(公告)日：2008-09-25

申请号：US12134952

申请日：2008-06-06

申请人： William T. Boyd ,  Douglas M. Fremiuth ,  William G. Holland ,  Steven W. Hunter ,  Renato J. Recio ,  Steven M. Thurber ,  Madeline Vega

发明人： William T. Boyd ,  Douglas M. Fremiuth ,  William G. Holland ,  Steven W. Hunter ,  Renato J. Recio ,  Steven M. Thurber ,  Madeline Vega

IPC分类号： G06F3/00

CPC分类号： G06F13/4022 ,  H04L45/00 ,  H04L45/54

摘要： A method is provided for creating and managing tables for routing packets through an environment that includes multiple hosts and shared PCI switches and adapters. A Destination Identification (DID) field in the PBA is appended to a transaction packet dispatched through the PCI switches, wherein a particular DID is associated with a particular host or system image, and thus identifies the physical or virtual end point of its packet. In one embodiment, packets are routed through PCI switches in a distributed computer system comprising multiple root nodes, wherein each root node includes one or more hosts. The embodiment includes the step of creating a table or like data structure in a specified one of the switches. When a particular host of one of the root nodes becomes connected to the specified switch, a PCI Configuration Master (PCM), residing in one of the root nodes, is operated to enter a destination identifier or DID into the table. The DID is then appended as an address component, to packets directed through the specified switch from the particular host to one of the adapters. The destination identifier is also used to determine that a PCI packet, routed through the specified switch from one of the adapters, is intended for the particular root node.

摘要翻译： 提供了一种创建和管理表以通过包括多个主机和共享PCI交换机和适配器的环境路由数据包的方法。 PBA中的目的地标识（DID）字段附加到通过PCI交换机分派的事务分组，其中特定的DID与特定主机或系统映像相关联，并且因此标识其分组的物理或虚拟终点。 在一个实施例中，分组通过包括多个根节点的分布式计算机系统中的PCI交换机路由，其中​​每个根节点包括一个或多个主机。 该实施例包括在指定的一个开关中创建表或类似数据结构的步骤。 当一个根节点的特定主机连接到指定的交换机时，驻留在其中一个根节点的PCI配置主机（PCM）被操作以在表中输入目的地标识符或DID。 然后，将DID作为地址组件附加到通过指定的交换机从特定主机引导到其中一个适配器的数据包。 目的地标识符还用于确定通过指定交换机从其中一个适配器路由的PCI数据包是针对特定根节点的。

公开(公告)号：US07907604B2

公开(公告)日：2011-03-15

申请号：US12134952

申请日：2008-06-06

申请人： William T. Boyd ,  Douglas M. Fremiuth ,  William G. Holland ,  Steven W. Hunter ,  Renato J. Recio ,  Steven M. Thurber ,  Madeline Vega

发明人： William T. Boyd ,  Douglas M. Fremiuth ,  William G. Holland ,  Steven W. Hunter ,  Renato J. Recio ,  Steven M. Thurber ,  Madeline Vega

IPC分类号： H04L12/28 ,  H04L12/56 ,  G06F3/00 ,  G06F13/36

CPC分类号： G06F13/4022 ,  H04L45/00 ,  H04L45/54

摘要： Routing between multiple hosts and adapters in a PCI environment is provided by a method and system. A Destination Identification (DID) field is inserted in a field of the PCI bus address (PBA) of transaction packets dispatched through PCI switches. A particular DID is associated with a particular host or system image, and thus identifies the physical or virtual end point of the packets. The method and system may track connections such that when particular host of a root node becomes connected to a specified switch, a PCI Configuration Master (PCM), residing in one of the root nodes, is operated to enter a destination identifier or DID into a table. The DID is then inserted in the PBA of packets directed through the specified switch from the particular host to one of the adapters.

摘要翻译： PCI环境中的多个主机和适配器之间的路由由方法和系统提供。 目的地识别（DID）字段插入通过PCI交换机分派的事务数据包的PCI总线地址（PBA）的字段中。 特定的DID与特定的主机或系统映像相关联，并且因此识别分组的物理或虚拟终点。 方法和系统可以跟踪连接，使得当根节点的特定主机变得连接到指定的交换机时，驻留在根节点之一的PCI配置主（PCM）被操作以将目的地标识符或DID输入到 表。 然后，将DID插入到从特定主机指向的指定交换机的分组的PBA中的一个适配器中。