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    • 1. 发明授权
    • Input/output control system with plural channel paths to I/O devices
    • I / O控制系统,用于基于其状态和其相关联的信道队列的可用时隙选择性地将工作分配给可用信道。
    • US5548791A
    • 1996-08-20
    • US279581
    • 1994-07-25
    • Daniel F. CasperSteven G. GlassenMarten J. HalmaSandra K. Ryan
    • Daniel F. CasperSteven G. GlassenMarten J. HalmaSandra K. Ryan
    • G06F13/12G06F13/14
    • G06F13/122
    • A data processing system includes a host processor and host memory means. The processor interacts with a plurality of peripheral units through an I/O system that includes a plurality of channels, one or more I/O processors (IOP's), and control data in a system area of the host memory means. Each channel has an associated busy bit in a vector, and is provided with a one position queue for dispatching work to the channel. Each queue has a bit in a vector indicating its full or empty status. A very efficient algorithm for the assignment of work for peripherals by the IOP's is provided in a system that provides for multiple paths through multiple channels between the host and a particular peripheral using the busy vector and queue vector.
    • 数据处理系统包括主机处理器和主机存储器装置。 处理器通过包括多个信道,一个或多个I / O处理器(IOP)的I / O系统和主机存储器装置的系统区域中的控制数据与多个外围设备进行交互。 每个通道在向量中都有一个相关联的忙位,并且具有一个位置队列,用于将工作调度到通道。 每个队列都有一个向量中的位,表示其全部或空的状态。 在通过忙向量和队列向量提供主机与特定外设之间的多个通道的多个路径的系统中提供了用于由IOP为外围设备分配工作的非常有效的算法。
    • 8. 发明授权
    • Computer program device and product for timely processing of data using a queued direct input-output device
    • 计算机程序设备和产品,用于使用排队的直接输入输出设备及时处理数据
    • US06345326B1
    • 2002-02-05
    • US09252730
    • 1999-02-19
    • Michael E. BaskeyFrank W. BriceDaniel F. CasperJanet R. EastonSteven G. GlassenEugene P. HefferonBruce H. RatcliffArthur J. StaggLeslie W. Wyman
    • Michael E. BaskeyFrank W. BriceDaniel F. CasperJanet R. EastonSteven G. GlassenEugene P. HefferonBruce H. RatcliffArthur J. StaggLeslie W. Wyman
    • G06F1300
    • H04L25/05
    • A computer program device and product is provided for timely processing of data. The computer program device comprises a program storage device readable by a digital processing apparatus and a program means including instructions executable by the digital processing apparatus by designating at least one set of queues in the queuing mechanism as input queues and another as output queues; issuing a signal adapter instruction to provide initiative to check content of any or all queues in the queuing mechanism; specifying initiate-output or initiate-input appropriately by means of said signal adapter instruction to cause associated adapter to asynchronously process said output or input queues; and causing synchronization by means of said signal adapter instruction by signaling the associated data queues to update all entries in order to render them current. The computer program product is for use with a computer system and has a main storage in processing communication with an interface element having adapters for storing a queuing mechanism storing data. It comprises of a data storage device including a computer usable medium having computer readable program means for ensuring proper and timely processing of data, for dedicating at least one set of queues of the queuing mechanism as input queues and another set as output queues and for generating a signal adapter instruction designated to provide initiative to check content of any or all queues in said queuing mechanism.
    • 提供计算机程序设备和产品以及时处理数据。 计算机程序设备包括可由数字处理设备读取的程序存储设备和包括可由数字处理设备执行的指令的程序设备,通过将排队机构中的至少一组队列指定为输入队列,另一个作为输出队列; 发出信号适配器指令,提供主动检查排队机构中任何或所有队列的内容; 通过所述信号适配器指令适当地指定启动输出或启动输入,以使相关联的适配器异步地处理所述输出或输入队列; 并通过所述信号适配器指令通过发信号通知相关的数据队列来更新所有条目以使其成为当前状态,从而进行同步。 计算机程序产品用于计算机系统,并且具有处理与具有用于存储存储数据的排队机构的适配器的接口元件的通信的主存储器。 它包括数据存储装置,包括具有计算机可读程序装置的计算机可用介质的计算机可用介质,用于确保适当和及时地处理数据,用于将排队机构的至少一组队列作为输入队列,另一组作为输出队列,并用于生成 指定用于提供主动检查所述排队机构中的任何或所有队列的内容的信号适配器指令。
    • 10. 发明授权
    • Fibre channel input/output data routing system and method
    • 光纤通道输入/输出数据路由系统及方法
    • US08677027B2
    • 2014-03-18
    • US13150545
    • 2011-06-01
    • Clinton E. BubbDaniel F. CasperJohn R. Flanagan
    • Clinton E. BubbDaniel F. CasperJohn R. Flanagan
    • G06F3/00G06F5/00G06F13/00
    • G06F13/385
    • A computer program product for performing input/output (I/O) processing is configured for performing a method including: obtaining information relating to an I/O operation at a channel subsystem; generating and storing in local channel memory at least one address control word (ACW) specifying one or more host memory locations for data transfer and including a field for storing header information; generating an address control structure specifying a location in the local channel memory of a corresponding ACW; receiving a data transfer request from a network interface that includes the address control structure; responsive to an input data request, routing the data to at least one host memory location specified by the corresponding ACW and storing header information in the corresponding ACW; and responsive to an output data request, routing the data from a host memory location specified by the ACW to the network interface and appending header information to the data.
    • 用于执行输入/输出(I / O)处理的计算机程序产品被配置为执行一种方法,包括:获得与通道子系统上的I / O操作有关的信息; 在本地信道存储器中生成和存储指定用于数据传输的一个或多个主机存储器位置的至少一个地址控制字(ACW),并且包括用于存储头信息的字段; 产生指定相应ACW的本地信道存储器中的位置的地址控制结构; 从包括所述地址控制结构的网络接口接收数据传输请求; 响应于输入数据请求,将数据路由到由相应ACW指定的至少一个主机存储器位置,并将标题信息存储在相应的ACW中; 并且响应于输出数据请求,将数据从由ACW指定的主机存储器位置路由到网络接口,并将标题信息附加到数据。