Method and apparatus for efficient interrupt event notification for a scalable input/output device
    1.
    发明授权
    Method and apparatus for efficient interrupt event notification for a scalable input/output device 有权
    用于可伸缩输入/输出设备的高效中断事件通知的方法和装置

    公开(公告)号:US08510491B1

    公开(公告)日:2013-08-13

    申请号:US11098727

    申请日:2005-04-05

    CPC分类号: G06F15/17331

    摘要: A method and apparatus for efficient interrupt event notification for a scalable input/output device in a network system. A network interface unit is operably connected to a plurality of processing entities and associated memory units. At least one status register in the network interface unit contains information relating to a process to be performed by at least one processing entity communicated to the processing entity by an interrupt event notification. Shared memory space comprises a mailbox storage register operable to store an image of the interrupt information stored in the status register of the network interface unit. A processing entity can directly access the process information stored in the mailbox status register thereby reducing system latency associated with reading information in the status register. Updated process status information in the network interface status register may be read by the processing entity on an interleaved basis while executing a process.

    摘要翻译: 一种用于网络系统中可伸缩输入/输出设备的高效中断事件通知的方法和装置。 网络接口单元可操作地连接到多个处理实体和相关联的存储器单元。 网络接口单元中的至少一个状态寄存器包含与通过中断事件通知传送给处理实体的至少一个处理实体执行的处理有关的信息。 共享存储器空间包括邮箱存储寄存器,其可操作以存储存储在网络接口单元的状态寄存器中的中断信息的图像。 处理实体可以直接访问存储在邮箱状态寄存器中的处理信息,从而减少与在状态寄存器中读取信息相关联的系统延迟。 网络接口状态寄存器中的更新过程状态信息可以在执行处理时由处理实体以交织的方式读取。