EXTENDED MEASUREMENT WORD DETERMINATION AT A CHANNEL SUBSYSTEM OF AN I/O PROCESSING SYSTEM
    82.
    发明申请
    EXTENDED MEASUREMENT WORD DETERMINATION 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扩展测量字测量

    公开(公告)号:US20090210570A1

    公开(公告)日:2009-08-20

    申请号:US12030920

    申请日:2008-02-14

    IPC分类号: G06F3/00

    CPC分类号: G06F13/124

    摘要: An article of manufacture, an apparatus, and a method for determining an extended measurement word at a channel subsystem of an I/O processing system using data from a control unit are provided. The article of manufacture includes at least one computer usable medium having computer readable program code logic. The computer readable program code logic performs a method including sending a command message to the control unit, and receiving a transport response information unit message at the channel subsystem in response to sending the command message to the control unit. The computer readable program code logic additionally extracts a plurality of time values from the transport response information unit message as calculated by the control unit, calculates an extended measurement word as a function of the time values, and writes the extended measurement word to computer readable memory in the I/O processing system.

    摘要翻译: 提供了使用来自控制单元的数据来确定I / O处理系统的通道子系统处的扩展测量字的制造品,装置和方法。 该制品包括具有计算机可读程序代码逻辑的至少一个计算机可用介质。 计算机可读程序代码逻辑执行包括向控制单元发送命令消息并响应于向控制单元发送命令消息在通道子系统处接收传输响应信息单元消息的方法。 计算机可读程序代码逻辑还从控制单元计算的传输响应信息单元消息中提取多个时间值,根据时间值计算扩展测量字,并将扩展测量字写入计算机可读存储器 在I / O处理系统中。

    SYSTEM AND PROGRAM PRODUCTS FOR FACILITATING INPUT/OUTPUT PROCESSING BY USING TRANSPORT CONTROL WORDS TO REDUCE INPUT/OUTPUT COMMUNICATIONS
    84.
    发明申请
    SYSTEM AND PROGRAM PRODUCTS FOR FACILITATING INPUT/OUTPUT PROCESSING BY USING TRANSPORT CONTROL WORDS TO REDUCE INPUT/OUTPUT COMMUNICATIONS 有权
    使用运输控制字来减少输入/输出通讯的输入/输出处理系统和程序产品

    公开(公告)号:US20090172203A1

    公开(公告)日:2009-07-02

    申请号:US12392246

    申请日:2009-02-25

    IPC分类号: G06F13/10

    CPC分类号: G06F13/126

    摘要: Input/output processing is facilitated by reducing communications between input/output communications adapters and control units during input/output processing. The number of exchanges and sequences between an input/output communications adapter and control unit is reduced by sending a plurality of commands from the adapter to the control unit as a single entity for execution by the control unit. The control unit executes the commands and provides the data, if any, in one sequence. The control unit relieves the adapter of the responsibility of tracking state of the individual commands and is able to calculate precise measurement data relating to execution of the commands.

    摘要翻译: 通过在输入/输出处理期间减少输入/输出通信适配器和控制单元之间的通信来促进输入/输出处理。 输入/输出通信适配器和控制单元之间的交换和序列数量通过将多个命令从适配器发送到控制单元来减少,作为单个实体用于由控制单元执行。 控制单元执行命令并以一个顺序提供数据(如果有的话)。 控制单元解除适配器跟踪各个命令的状态的责任,并且能够计算与执行命令有关的精确测量数据。

    Interconnection architecture for managing multiple low bandwidth connections over a high bandwidth link
    85.
    发明授权
    Interconnection architecture for managing multiple low bandwidth connections over a high bandwidth link 有权
    用于通过高带宽链路管理多个低带宽连接的互连架构

    公开(公告)号:US06975623B2

    公开(公告)日:2005-12-13

    申请号:US10798818

    申请日:2004-03-10

    IPC分类号: H04L12/46 G06F13/40 H04L12/66

    CPC分类号: G06F13/4022

    摘要: A data communication architecture including a plurality of devices having input/output (I/O) ports supporting communication at a first rate and a data processor having a number of I/O ports where each I/O port supports data communication at a second data rate. The second data rate is at least double the first data rate. A communication link coupled to one of the data processor I/O ports supports the second data rate. A bridge device is coupled to the communication link and to the I/O ports of the plurality of devices. The bridge device translates the communication link at the second data rate to a plurality of communication links at the first data rate, where the plurality of communication links at the first data rate are substantially independent of each other.

    摘要翻译: 一种数据通信架构,包括具有以第一速率支持通信的输入/输出(I / O)端口的多个设备和具有多个I / O端口的数据处理器,其中每个I / O端口支持第二数据的数据通信 率。 第二数据速率至少是第一数据速率的两倍。 耦合到数据处理器I / O端口之一的通信链路支持第二数据速率。 桥接设备耦合到通信链路和多个设备的I / O端口。 桥接设备以第一数据速率将第二数据速率的通信链路转换为多个通信链路,其中第一数据速率的多个通信链路基本上彼此独立。

    Apparatus for constructing data frames for transmission over a data link
    86.
    发明授权
    Apparatus for constructing data frames for transmission over a data link 失效
    用于在数据链路上构建传输数据帧的装置

    公开(公告)号:US5185862A

    公开(公告)日:1993-02-09

    申请号:US428798

    申请日:1989-10-30

    IPC分类号: H04L29/08 G06F13/12 H04L29/06

    CPC分类号: G06F13/122 G06F13/128

    摘要: An outbound frame state machine (OFSM) which generates data frames for transmission over a data link. The OFSM is microcode controlled and includes an outbound frame header buffer for containing information to be included in the header of the frame, a data buffer for storing data characters to be included in the data frame, a data generator register for providing special sequences of data characters, if required, and an outbound frame trace buffer for storing a trace log of all frames transmitted in the normal mode and to be used if the OFSM is operating in the simulated I/O mode or the diagnostic mode. In the normal mode of operation, the OFSM builds a data frame using header information from the frame heater bufferm and may include data from the data buffer, all as specified by control bits stored in a control register. The control register may also include a bit for causing special sequences to be transmitted. In the simulation mode, frames are built by the OFSM and then wrapped back to the channel to be processed like frames from a control unit. In the diagnostic mode, the OFSM inserts various characters into the outbound data bit stream to create possible error situations on the data link.

    Fibre channel input/output data routing system and method
    88.
    发明授权
    Fibre channel input/output data routing system and method 有权
    光纤通道输入/输出数据路由系统及方法

    公开(公告)号:US08769253B2

    公开(公告)日:2014-07-01

    申请号:US13460974

    申请日:2012-05-01

    摘要: A method of performing an input/output (I/O) processing operation includes: generating an address control structure for each of a plurality of consecutive data transfer requests, each address control structure specifying a local channel memory location of a corresponding address control word (ACW); receiving a data transfer request from a network interface that includes addressing information specified by a corresponding address control structure; comparing, by a data router in the channel, an Offset field of an address control structure and an Expected Offset field of an ACW to determine whether the data transfer request has been received in the correct order; and based on determining that the data transfer request has been received in the correct order, accessing the ACW by the data router and routing the data transfer request to a host memory location specified in the ACW.

    摘要翻译: 执行输入/输出(I / O)处理操作的方法包括:为多个连续数据传送请求中的每一个生成地址控制结构,每个地址控制结构指定相应地址控制字的本地信道存储器位置 ACW); 从包括由相应地址控制结构指定的寻址信息的网络接口接收数据传输请求; 通过信道中的数据路由器比较ACW的地址控制结构的偏移字段和ACW的预期偏移字段,以确定是否以正确的顺序接收到数据传送请求; 并且基于确定已经以正确的顺序接收到数据传输请求,由数据路由器访问ACW并将数据传输请求路由到ACW中指定的主机存储器位置。

    Bi-directional data transfer within a single I/O operation
    90.
    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。