公开(公告)号：ES2359614T3

公开(公告)日：2011-05-25

申请号：ES09709853

申请日：2009-02-09

Applicant: IBM

Inventor： CASPER DANIEL ,  FLANAGAN JOHN ,  KALOS MATTHEW ,  SITTMANN III GUSTAV ,  HUANG CATHERINE ,  NJOKU UGOCHUKWU ,  RIEDY DALE

IPC: G06F13/10

Abstract: Un método para simplificar el procesado de E/S para una operación de E/S en un sistema de ordenador anfitrión configurado para comunicarse con una unidad de control, que comprende: obtener (1202) una palabra de orden de transporte para una operación de E/S que tiene datos tanto de entrada como de salida, especificando la palabra de orden de transporte una posición de los datos de salida y una posición para almacenar los datos de entrada; recopilar (1206) los datos de salida en respuesta a la posición de los datos de salida especificada por la palabra de orden de transporte; reenviar (1208) la operación de E/S y los datos de salida a la unidad de control para su ejecución; recibir (1210) los datos de entrada de la unidad de control; y almacenar (1212) los datos de entrada en la posición especificada por la palabra de orden de transporte para almacenar los datos de entrada.

公开(公告)号：DE602009000984D1

公开(公告)日：2011-05-12

申请号：DE602009000984

申请日：2009-02-09

Applicant: IBM

Inventor： CASPER DANIEL ,  FLANAGAN JOHN ,  KALOS MATTHEW ,  HUANG CATHERINE ,  NJOKU UGOCHUKWU ,  RIEDY DALE ,  SITTMANN GUSTAV III

IPC: G06F13/10

公开(公告)号：AT497212T

公开(公告)日：2011-02-15

申请号：AT09709853

申请日：2009-02-09

Applicant: IBM

Inventor： CASPER DANIEL ,  FLANAGAN JOHN ,  KALOS MATTHEW ,  SITTMANN III GUSTAV ,  HUANG CATHERINE ,  NJOKU UGOCHUKWU ,  RIEDY DALE

IPC: G06F13/10

公开(公告)号：DE602009000464D1

公开(公告)日：2011-02-03

申请号：DE602009000464

申请日：2009-02-09

Applicant: IBM

Inventor： CASPER DANIEL ,  FLANAGAN JOHN ,  HUANG CATHERINE ,  KALOS MATTHEW ,  RICCI LOUIS

IPC: G06F13/10

公开(公告)号：AT492848T

公开(公告)日：2011-01-15

申请号：AT09710704

申请日：2009-02-09

Applicant: IBM

Inventor： CASPER DANIEL ,  FLANAGAN JOHN ,  HUANG CATHERINE ,  KALOS MATTHEW ,  RICCI LOUIS

IPC: G06F13/10

Abstract: A computer program product, an apparatus, and a method for processing communications between a control unit and a channel subsystem in an input/output processing system are provided. 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: sending a command from the channel subsystem to the control unit to initiate an input/output operation; setting a time period for completion of the operation; and responsive to the operation not completing within the time period, sending a message to determine whether the control unit has an exchange open for the command.

公开(公告)号：PT2174227E

公开(公告)日：2010-10-22

申请号：PT09711029

申请日：2009-02-09

Applicant: IBM

Inventor： CASPER DANIEL ,  BENDYK MARK ,  HATHORN ROGER ,  FLANAGAN JOHN ,  HARDY CLINT ,  HUANG CATHERINE ,  KALOS MATTHEW ,  RICCI LOUIS ,  SITTMANN GUSTAV III ,  YUDENFRIEND HARRY

IPC: G06F13/14

公开(公告)号：CA2704133A1

公开(公告)日：2009-08-20

申请号：CA2704133

申请日：2009-02-09

Applicant: IBM

Inventor： CASPER DANIEL ,  FLANAGAN JOHN ,  KALOS MATTHEW ,  SITTMANN GUSTAV III ,  HUANG CATHERINE ,  NJOKU UGOCHUKWU ,  RIEDY DALE

IPC: G06F13/10

Abstract: An article of manufacture, apparatus, and a method for facilitating input/output (I/O) pro-cessing 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 respon-sive 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.

公开(公告)号：CA2704138C

公开(公告)日：2017-11-07

申请号：CA2704138

申请日：2009-02-10

Applicant: IBM

Inventor： CASPER DANIEL ,  FLANAGAN JOHN ,  YUDENFRIEND HARRY ,  KALOS MATTHEW ,  BENDYK MARK ,  SITTMANN GUSTAV III ,  HUANG CATHERINE ,  RIEDY DALE ,  NJOKU UGOCHUKWU

IPC: G06F13/10

Abstract: Systems, methods and computer program products for providing indirect data addressing at an I/O subsystem of 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 control word for an I/O operation. The control word includes an indirect data address for data associated with the I/O operation. The indirect data address includes a starting location of a list of storage addresses that collectively specify the data, the list spans two or more non-contiguous storage locations. Data is gathered responsive to the list. The gathered data is transmitted to a control unit in the I/O processing system.

公开(公告)号：CA2704133C

公开(公告)日：2017-11-07

申请号：CA2704133

申请日：2009-02-09

Applicant: IBM

Inventor： CASPER DANIEL ,  FLANAGAN JOHN ,  KALOS MATTHEW ,  SITTMANN GUSTAV III ,  HUANG CATHERINE ,  NJOKU UGOCHUKWU ,  RIEDY DALE

IPC: G06F13/10

Abstract: An article of manufacture, apparatus, and a method for facilitating input/output (I/O) pro-cessing 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 respon-sive 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.

公开(公告)号：CA2704131C

公开(公告)日：2017-09-19

申请号：CA2704131

申请日：2009-02-09

Applicant: IBM

Inventor： CASPER DANIEL ,  FLANAGAN JOHN ,  HUANG CATHERINE ,  KALOS MATTHEW ,  RICCI LOUIS

IPC: G06F13/10

Abstract: A computer program product, an apparatus, and a method for processing communications between a control unit and a channel subsystem in an input/output processing system are provided. 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: sending a command from the channel subsystem to the control unit to initiate an input/output oper-ation; setting a time period for completion of the operation; and responsive to the operation not completing within the time period, sending a message to determine whether the control unit has an exchange open for the command.