PROVIDING INDIRECT DATA ADDRESSING FOR A CONTROL BLOCK AT A CHANNEL SUBSYSTEM OF AN I/O PROCESSING SYSTEM
    21.
    发明申请
    PROVIDING INDIRECT DATA ADDRESSING FOR A CONTROL BLOCK AT A CHANNEL SUBSYSTEM OF AN I/O PROCESSING SYSTEM 有权
    在I / O处理系统的通道子系统中为控制块提供间接数据寻址

    公开(公告)号:US20090210563A1

    公开(公告)日:2009-08-20

    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。

    FACILITATING TRANSPORT MODE INPUT/OUTPUT OPERATIONS BETWEEN A CHANNEL SUBSYSTEM AND INPUT/OUTPUT DEVICES
    22.
    发明申请
    FACILITATING TRANSPORT MODE INPUT/OUTPUT OPERATIONS BETWEEN A CHANNEL SUBSYSTEM AND INPUT/OUTPUT DEVICES 有权
    促进通道子系统和输入/输出设备之间的运输模式输入/输出操作

    公开(公告)号:US20130007303A1

    公开(公告)日:2013-01-03

    申请号:US13173725

    申请日:2011-06-30

    IPC分类号: G06F3/00

    CPC分类号: G06F13/42

    摘要: A computer program product is provided for performing an input/output (I/O) processing operation at a host computer system. The computer program product is configured to perform: obtaining a transport command word (TCW) at a channel subsystem for an I/O operation, the TCW including an address of a transport command control block (TCCB) having a transport command area (TCA) configured to hold a first plurality of device command words (DCW) and control data associated with respective DCWs, the first plurality of DCWs including a transfer TCA extension (TTE) DCW that specifies a TCA extension, the TCA extension configured to hold one or more DCWs and control data associated with respective DCWs; gathering the TCCB from one or more locations specified in the TCCB address and transferring the TCCB to the control unit; gathering the TCA extension specified by the TTE DCW; and transferring the TCA extension to the control unit.

    摘要翻译: 提供了一种计算机程序产品,用于在主计算机系统上执行输入/输出(I / O)处理操作。 所述计算机程序产品被配置为执行:在用于I / O操作的信道子系统处获取传输命令字(TCW),所述TCW包括具有传输命令区域(TCA)的传输命令控制块(TCCB)的地址, 被配置为保持第一多个设备命令字(DCW)和与相应DCW相关联的控制数据,所述第一多个DCW包括指定TCA扩展的传输TCA扩展(TTE)DCW,所述TCA扩展被配置为保存一个或多个 DCW和与相应DCW相关联的控制数据; 从TCCB地址中指定的一个或多个位置收集TCCB,并将TCCB传送到控制单元; 收集TTE DCW指定的TCA扩展; 并将TCA扩展传输到控制单元。

    Facilitating transport mode input/output operations between a channel subsystem and input/output devices
    25.
    发明授权
    Facilitating transport mode input/output operations between a channel subsystem and input/output devices 有权
    促进通道子系统和输入/输出设备之间的传输模式输入/输出操作

    公开(公告)号:US08312176B1

    公开(公告)日:2012-11-13

    申请号:US13173772

    申请日:2011-06-30

    IPC分类号: G06F3/00 G06F3/01

    CPC分类号: G06F13/4282 Y02E10/721

    摘要: A computer program product is provided for performing: sending, by a channel subsystem, a process login (PRLI) request message to the control unit that indicates whether the channel subsystem supports bi-directional data transfer; receiving a PRLI response message from the control unit that indicates whether the control unit supports bi-directional data transfer; gathering a plurality of commands, at least one which specifies an input data transfer and at least one specifying an output data transfer; sending at least one output data message to the control unit including output data to be transferred to the control unit, the output data message associated with the at least one of the plurality of commands specifying an output data transfer; and receiving at least one input message from the control unit including input data to be stored in a main storage of the host computer system.

    摘要翻译: 提供了一种用于执行以下操作的计算机程序产品:由信道子系统向所述控制单元发送指示所述信道子系统是否支持双向数据传送的过程登录(PRLI)请求消息; 从所述控制单元接收指示所述控制单元是否支持双向数据传送的PRLI响应消息; 收集多个命令,指定输入数据传送中的至少一个和指定输出数据传送的至少一个; 向控制单元发送至少一个输出数据消息,包括要传送到控制单元的输出数据,与指定输出数据传送的多个命令中的至少一个相关联的输出数据消息; 以及从所述控制单元接收至少一个输入消息,包括要存储在所述主计算机系统的主存储器中的输入数据。

    Facilitating transport mode input/output operations between a channel subsystem and input/output devices
    28.
    发明授权
    Facilitating transport mode input/output operations between a channel subsystem and input/output devices 有权
    促进通道子系统和输入/输出设备之间的传输模式输入/输出操作

    公开(公告)号:US08549185B2

    公开(公告)日:2013-10-01

    申请号:US13173725

    申请日:2011-06-30

    CPC分类号: G06F13/42

    摘要: A computer program product is provided for performing an input/output (I/O) processing operation at a host computer system. The computer program product is configured to perform: obtaining a transport command word (TCW) at a channel subsystem for an I/O operation, the TCW including an address of a transport command control block (TCCB) having a transport command area (TCA) configured to hold a first plurality of device command words (DCW) and control data associated with respective DCWs, the first plurality of DCWs including a transfer TCA extension (TTE) DCW that specifies a TCA extension, the TCA extension configured to hold one or more DCWs and control data associated with respective DCWs; gathering the TCCB from one or more locations specified in the TCCB address and transferring the TCCB to the control unit; gathering the TCA extension specified by the TTE DCW; and transferring the TCA extension to the control unit.

    摘要翻译: 提供了一种计算机程序产品,用于在主计算机系统上执行输入/输出(I / O)处理操作。 所述计算机程序产品被配置为执行:在用于I / O操作的信道子系统处获得传输命令字(TCW),所述TCW包括具有传输命令区域(TCA)的传输命令控制块(TCCB)的地址, 被配置为保持第一多个设备命令字(DCW)和与相应DCW相关联的控制数据,所述第一多个DCW包括指定TCA扩展的传输TCA扩展(TTE)DCW,所述TCA扩展被配置为保存一个或多个 DCW和与相应DCW相关联的控制数据; 从TCCB地址中指定的一个或多个位置收集TCCB,并将TCCB传送到控制单元; 收集TTE DCW指定的TCA扩展; 并将TCA扩展传输到控制单元。

    COMMUNICATION PATH SELECTION
    29.
    发明申请
    COMMUNICATION PATH SELECTION 有权
    通信路径选择

    公开(公告)号:US20130339551A1

    公开(公告)日:2013-12-19

    申请号:US13523958

    申请日:2012-06-15

    IPC分类号: G06F3/00

    CPC分类号: G06F13/4022

    摘要: A computer system includes a processor configured for detecting initial command response times of a plurality of paths for transmitting signals from the processor to one or more external devices via a plurality of channels, assigning weighted values to the plurality of paths based on the detected initial command response times, and modifying a frequency at which respective paths among the plurality of paths are selected for transmitting the signals based on the weighted values assigned to the respective paths.

    摘要翻译: 计算机系统包括:处理器,被配置为检测多个路径的初始命令响应时间,用于经由多个信道将信号从处理器发送到一个或多个外部设备;基于检测到的初始命令向多个路径分配加权值 响应时间,以及修改多个路径中的相应路径被选择用于基于分配给相应路径的加权值来发送信号的频率。