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    • 19. 发明授权
    • System and method for improved transfer of data between multiple
processors and I/O bridges
    • 用于改善多处理器和I / O桥之间的数据传输的系统和方法
    • US06128677A
    • 2000-10-03
    • US943677
    • 1997-10-15
    • Robert J. MillerEdward A. McDonald
    • Robert J. MillerEdward A. McDonald
    • G06F13/40G06F13/36
    • G06F13/4031
    • A controller is provided, for use in a processing system containing a plurality of processors operable to communicate with a plurality of I/O devices, for directing a first I/O request issued by a first selected one of the plurality of processors to a targeted one of the I/O devices. The controller device comprises a counter for counting a number of retries associated with the first I/O request and comparison circuitry for comparing a count value in the counter with a first predetermined limit, wherein the controller, in response to a determination that the count value in the counter exceeds the first predetermined limit, blocks all other I/O requests issued by the plurality of processors from being directed to the targeted I/O device.
    • 提供控制器,用于包含可操作以与多个I / O设备进行通信的多个处理器的处理系统,用于将由多个处理器中的第一选定的处理器发出的第一I / O请求引导到目标 其中一个I / O设备。 控制器装置包括用于计数与第一I / O请求相关联的重试次数的计数器和用于将计数器中的计数值与第一预定极限进行比较的比较电路,其中控制器响应于确定计数值 在计数器中超过第一预定限制,阻止由多个处理器发出的所有其它I / O请求被引导到目标I / O设备。