Bi-directional data transfer within a single I/O operation
    1.
    发明授权
    Bi-directional data transfer within a single I/O operation 有权
    单一I / O操作中的双向数据传输

    公开(公告)号:US08495253B2

    公开(公告)日:2013-07-23

    申请号:US13075993

    申请日:2011-03-30

    摘要: An article of manufacture, apparatus, and a method for facilitating input/output (I/O) processing for an I/O operation at a host computer system configured for communication with a control unit. The method includes the host computer system obtaining a transport command word (TCW) for an I/O operation having both input and output data. The TCW specifies a location of the output data and a location for storing the input data. The host computer system forwards the I/O operation to the control unit for execution. The host computer system gathers the output data responsive to the location of the output data specified by the TCW, and then forwards the output data to the control unit for use in the execution of the I/O operation. The host computer system receives the input data from the control unit and stores the input data at the location specified by the TCW.

    摘要翻译: 一种制造装置和方法,用于在被配置为与控制单元进行通信的主计算机系统上促进用于I / O操作的输入/输出(I / O)处理。 该方法包括主计算机系统获得具有输入和输出数据的I / O操作的传输命令字(TCW)。 TCW指定输出数据的位置和存储输入数据的位置。 主计算机系统将I / O操作转发到控制单元以执行。 主计算机系统根据TCW指定的输出数据的位置收集输出数据,然后将输出数据转发到控制单元,以用于执行I / O操作。 主计算机系统从控制单元接收输入数据,并将输入数据存储在TCW指定的位置。

    PROCESSING A VARIABLE LENGTH DEVICE COMMAND WORD AT A CONTROL UNIT IN AN I/O PROCESSING SYSTEM
    2.
    发明申请
    PROCESSING A VARIABLE LENGTH DEVICE COMMAND WORD AT A CONTROL UNIT IN AN I/O PROCESSING SYSTEM 有权
    在I / O处理系统中处理控制单元上的可变长度设备命令字

    公开(公告)号:US20090210559A1

    公开(公告)日:2009-08-20

    申请号:US12030939

    申请日:2008-02-14

    IPC分类号: G06F3/00

    CPC分类号: G06F13/126

    摘要: A computer program product, apparatus and method for processing a variable length device command word (DCW) at a control unit configured for communication with an input/output (I/O) subsystem in an I/O processing system. The computer program product includes a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method. The method includes receiving a DCW at the control unit from the I/O subsystem. The DCW specifies one or more I/O operations and includes a command, a control data count, and control data having a varying length specified by the control data count. The control data is extracted in response to the control data count. The command is then executed in response to the extracted control data to perform the specified one or more I/O operations.

    摘要翻译: 一种用于在被配置为与I / O处理系统中的输入/输出(I / O)子系统进行通信的控制单元处理可变长度设备命令字(DCW)的计算机程序产品,设备和方法。 计算机程序产品包括可由处理电路读取的有形存储介质,并且存储由处理电路执行以执行方法的指令。 该方法包括从控制单元从I / O子系统接收DCW。 DCW指定一个或多个I / O操作,并且包括命令,控制数据计数和具有由控制数据计数指定的变化长度的控制数据。 响应于控制数据计数提取控制数据。 然后响应于所提取的控制数据执行命令以执行指定的一个或多个I / O操作。

    Processing a variable length device command word at a control unit in an I/O processing system
    3.
    发明授权
    Processing a variable length device command word at a control unit in an I/O processing system 有权
    在I / O处理系统的控制单元处理可变长度设备命令字

    公开(公告)号:US07840717B2

    公开(公告)日:2010-11-23

    申请号:US12030939

    申请日:2008-02-14

    IPC分类号: G06F3/00

    CPC分类号: G06F13/126

    摘要: A computer program product, apparatus and method for processing a variable length device command word (DCW) at a control unit configured for communication with an input/output (I/O) subsystem in an I/O processing system. The computer program product includes a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method. The method includes receiving a DCW at the control unit from the I/O subsystem. The DCW specifies one or more I/O operations and includes a command, a control data count, and control data having a varying length specified by the control data count. The control data is extracted in response to the control data count. The command is then executed in response to the extracted control data to perform the specified one or more I/O operations.

    摘要翻译: 一种用于在被配置为与I / O处理系统中的输入/输出(I / O)子系统进行通信的控制单元处理可变长度设备命令字(DCW)的计算机程序产品,设备和方法。 计算机程序产品包括可由处理电路读取的有形存储介质,并且存储由处理电路执行以执行方法的指令。 该方法包括从控制单元从I / O子系统接收DCW。 DCW指定一个或多个I / O操作,并且包括命令,控制数据计数和具有由控制数据计数指定的变化长度的控制数据。 响应于控制数据计数提取控制数据。 然后响应于所提取的控制数据执行命令以执行指定的一个或多个I / O操作。

    Providing indirect data addressing for a control block at a channel subsystem of an I/O processing system
    7.
    发明授权
    Providing indirect data addressing for a control block at a channel subsystem of an I/O processing system 有权
    为I / O处理系统的通道子系统的控制块提供间接数据寻址

    公开(公告)号:US08117347B2

    公开(公告)日:2012-02-14

    申请号:US12031201

    申请日:2008-02-14

    IPC分类号: G06F3/00

    摘要: An computer program product, apparatus, and method for facilitating input/output (I/O) processing for an I/O operation at a host computer system configured for communication with a control unit. The computer program product includes a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method. The method includes the host computer system obtaining a transport command word (TCW) for an I/O operation. The TCW specifies a location of one or more I/O commands and a flag. The flag is set to indicate that the location is an indirect address. The host computer system extracts the location of the one or more I/O commands and the flag from the TCW. The host computer system gathers the one or more I/O commands responsive to the location specified by the TCW and the flag, and then forwards the one or more I/O commands to the control unit for execution.

    摘要翻译: 一种用于便于在被配置为与控制单元进行通信的主计算机系统上进行I / O操作的输入/输出(I / O)处理的计算机程序产品,装置和方法。 计算机程序产品包括可由处理电路读取的有形存储介质,并且存储由处理电路执行以执行方法的指令。 该方法包括主计算机系统获得用于I / O操作的传输命令字(TCW)。 TCW指定一个或多个I / O命令和标志的位置。 该标志设置为指示该位置是间接地址。 主计算机系统从TCW提取一个或多个I / O命令的位置和标志。 主计算机系统根据TCW和标志指定的位置收集一个或多个I / O命令,然后将一个或多个I / O命令转发到控制单元执行。

    BI-DIRECTIONAL DATA TRANSFER WITHIN A SINGLE I/O OPERATION
    8.
    发明申请
    BI-DIRECTIONAL DATA TRANSFER WITHIN A SINGLE I/O OPERATION 有权
    单向I / O操作中的双向数据传输

    公开(公告)号:US20110196993A1

    公开(公告)日:2011-08-11

    申请号:US13075993

    申请日:2011-03-30

    IPC分类号: G06F13/10

    摘要: An article of manufacture, apparatus, and a method for facilitating input/output (I/O) processing for an I/O operation at a host computer system configured for communication with a control unit. The method includes the host computer system obtaining a transport command word (TCW) for an I/O operation having both input and output data. The TCW specifies a location of the output data and a location for storing the input data. The host computer system forwards the I/O operation to the control unit for execution. The host computer system gathers the output data responsive to the location of the output data specified by the TCW, and then forwards the output data to the control unit for use in the execution of the I/O operation. The host computer system receives the input data from the control unit and stores the input data at the location specified by the TCW.

    摘要翻译: 一种制造装置和方法,用于在被配置为与控制单元进行通信的主计算机系统上促进用于I / O操作的输入/输出(I / O)处理。 该方法包括主计算机系统获得具有输入和输出数据的I / O操作的传输命令字(TCW)。 TCW指定输出数据的位置和存储输入数据的位置。 主计算机系统将I / O操作转发到控制单元以执行。 主计算机系统根据TCW指定的输出数据的位置收集输出数据,然后将输出数据转发到控制单元,以用于执行I / O操作。 主计算机系统从控制单元接收输入数据,并将输入数据存储在TCW指定的位置。