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1. 发明授权

US07836328B1 Method and apparatus for recovering from system bus transaction errors 有权
标题翻译：从系统总线事务错误中恢复的方法和装置
公开(公告)号：US07836328B1
公开(公告)日：2010-11-16
申请号：US11418900
申请日：2006-05-04
申请人： Rahoul Puri , John E. Watkins , Arvind Srinivsan , Babu R. Kandimalla , Nimita Taneja
发明人： Rahoul Puri , John E. Watkins , Arvind Srinivsan , Babu R. Kandimalla , Nimita Taneja
IPC分类号： G06F11/00
CPC分类号： G06F11/0793 , G06F11/0745
摘要： A method and apparatus for recovering from errors occurring during system bus transactions. An input/output device such as a network interface unit (NIU) issues read and write operations across a meta interface coupling the device to host bus (glue) logic. The host bus logic translates the operations into system bus transactions. The device maintains a set of reusable identifiers for identifying the operations, and a table maintained by the device or the host bus logic maps the operation identifiers to transaction identifiers identifying the system bus transactions spawned to perform the operations. If a bus transaction encounters an unrecoverable error, the host bus logic reports the error to the device and drops any further data received from other bus transactions performed for the same operation. The device marks the operation's identifier as dirty, to prevent its reuse. The operation identifier may be reused after software clears the error condition.
摘要翻译：一种用于从系统总线事务期间发生的错误中恢复的方法和装置。诸如网络接口单元（NIU）的输入/输出设备通过将设备耦合到主机总线（胶合）逻辑的元接口发出读取和写入操作。主机总线逻辑将操作转换为系统总线事务。设备维护一组用于识别操作的可重用标识符，并且由设备或主机总线逻辑维护的表将操作标识符映射到识别为执行操作而产生的系统总线事务的事务标识符。如果总线事务遇到不可恢复的错误，则主机总线逻辑将错误报告给设备，并丢弃从为相同操作执行的其他总线事务接收到的任何其他数据。设备将操作的标识符标记为脏，以防止其重复使用。在软件清除错误状态之后，可以重新使用操作标识符。

2. 发明授权

US07500046B1 Abstracted host bus interface for complex high performance ASICs 有权
标题翻译：抽象的主机总线接口，用于复杂的高性能ASIC
公开(公告)号：US07500046B1
公开(公告)日：2009-03-03
申请号：US11418901
申请日：2006-05-04
申请人： Rahoul Puri , Arvind Srinivsan , Carl Childers
发明人： Rahoul Puri , Arvind Srinivsan , Carl Childers
IPC分类号： G06F13/36
CPC分类号： G06F11/277
摘要： An interface is provided to couple an input/output device (e.g., a network interface unit) to one or more different host system buses without altering the configuration of the device (e.g., to include logic specific to the host buses). Functionality of the device (e.g., MTU size, error detection) is therefore independent of the host bus. Host bus logic for managing operation of the host bus is augmented with logic for translating between semantics of the interface and the host bus. Also, end-to-end verification of a complex ASIC in multiple configurations or environments can be performed over the interface without probing into the ASIC.
摘要翻译：提供接口以将输入/输出设备（例如，网络接口单元）耦合到一个或多个不同的主机系统总线，而不改变设备的配置（例如，包括主机总线特有的逻辑）。因此，设备的功能（例如，MTU大小，错误检测）与主机总线无关。用于管理主机总线操作的主机总线逻辑增加了用于在接口的语义和主机总线之间进行翻译的逻辑。此外，可以在接口上执行多个配置或环境中的复杂ASIC的端到端验证，而不会探测到ASIC。

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