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公开(公告)号:AT551655T
公开(公告)日:2012-04-15
申请号:AT09710800
申请日:2009-02-09
Applicant: IBM
Inventor: CASPER DANIEL , FLANAGAN JOHN , HUANG CATHERINE , KALOS MATTHEW , NJOKU UGOCHUKWU , RIEDY DALE , SITTMANN III GUSTAV
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公开(公告)号:SI2176771T1
公开(公告)日:2011-04-29
申请号:SI200930016
申请日:2009-02-10
Applicant: IBM
Inventor: CASPER DANIEL , FLANAGAN JOHN , YUDENFRIEND HARRY , KALOS MATTHEW , BENDYK MARK , SITTMANN III GUSTAV , HUANG CATHERINE , RIEDY DALE , NJOKU UGOCHUKWU
IPC: G06F13/10
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公开(公告)号:AT504040T
公开(公告)日:2011-04-15
申请号:AT09709864
申请日:2009-02-09
Applicant: IBM
Inventor: CASPER DANIEL , FLANAGAN JOHN , KALOS MATTHEW , HUANG CATHERINE , NJOKU UGOCHUKWU , RIEDY DALE , SITTMANN III GUSTAV
IPC: G06F13/10
Abstract: 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.
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公开(公告)号:DK2176771T3
公开(公告)日:2011-02-14
申请号:DK09709555
申请日:2009-02-10
Applicant: IBM
Inventor: CASPER DANIEL , FLANAGAN JOHN , YUDENFRIEND HARRY , KALOS MATTHEW , BENDYK MARK , SITTMANN III GUSTAV , HUANG CATHERINE , RIEDY DALE , NJOKU UGOCHUKWU
IPC: G06F13/10
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公开(公告)号:PT2176771E
公开(公告)日:2011-01-21
申请号:PT09709555
申请日:2009-02-10
Applicant: IBM
Inventor: CASPER DANIEL , BENDYK MARK , FLANAGAN JOHN , HUANG CATHERINE , KALOS MATTHEW , SITTMANN GUSTAV III , YUDENFRIEND HARRY , RIEDY DALE , NJOKU UGOCHUKWU
IPC: G06F13/10
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公开(公告)号:MX2010008883A
公开(公告)日:2010-09-07
申请号:MX2010008883
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: Se describe un artículo fabricado, un aparato y un método para facilitar el procesamiento de entrada/salida (I/O) para una operación I/O en un sistema de computadora anfitrión configurado para la comunicación con una unidad de control. El método incluye el sistema de computadora anfitrión que obtiene una palabra para órdenes de transporte (TCW) para una operación I/O que tiene tanto datos de entrada como de salida. La TCW específica una ubicación de los datos de salida y una ubicación para almacenar los datos de entrada. El sistema de computadora anfitrión reenvía la operación I/O a la unidad de control para su ejecución. El sistema de computadora anfitrión recolecta los datos de salida que sean sensibles a la ubicación de los datos de salida especificados por la TCW, y luego reenvía los datos de salida a la unidad de control para usarse en la ejecución de la operación I/O. El sistema de computadora anfitrión recibe los datos de entrada de la unidad de control y almacena los datos de entrada en la ubicación especificada por la TCW.
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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.
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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.
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公开(公告)号:CA2704136C
公开(公告)日:2017-01-03
申请号:CA2704136
申请日:2009-02-09
Applicant: IBM
Inventor: CASPER DANIEL , CARLSON SCOTT , FLANAGAN JOHN , HATHORN ROGER , HUANG CATHERINE , KALOS MATTHEW , RICCI LOUIS , RIEDY DALE , SITTMANN GUSTAV III , NJOKU UGOCHUKWU , YUDENFRIEND HARRY
IPC: G06F13/12
Abstract: A state of an input/output (I/O) operation in an I/O processing system is determined. A request for performing the I/O operation is received from an I/O operating system at a channel subsystem and forwarded to a control unit controlling an I/O device for executing the I/O operation. After a predetermined amount of time passes without receiving indication from the control unit that the I/O operation is completed, an interrogation request is received at the channel subsystem from the I/O operating system for determining the state of the I/O operation. An interrogation command is sent from the channel subsystem to the control unit. A response is received from the control unit, the response indicates a state of the I/O device executing the I/O operation, a state of the control unit controlling the I/O device executing the I/O operation, and the state of the I/O operation being executed.
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公开(公告)号:CY1112690T1
公开(公告)日:2016-02-10
申请号:CY121100373
申请日:2012-04-19
Applicant: IBM
Inventor: CASPER DANIEL , FLANAGAN JOHN , HUANG CATHERINE , KALOS MATTHEW , NJOKU UGOCHUKWU , RIEDY DALE , SITTMANN III GUSTAV
Abstract: Έναπροϊόνπρογράμματοςυπολογιστή, μιασυσκευήκαιμιαμέθοδοςγιατηδιευκόλυνσηεπεξεργασίαςεισόδου/εξόδου (Ι/Ο) γιαμίαλειτουργίαΙ/Οκαιένασύστημαεπεξεργαστήξενιστήπουέχεισχεδιασθείγιατηνεπικοινωνίαμεμίαμονάδαελέγχου. Τοπροϊόνπρογράμματοςυπολογιστήπεριλαμβάνειένααπτόμέσοαποθήκευσης, πουείναιδυνατόνναδιαβάζεταιαπόένακύκλωμαεπεξεργασίαςκαιοδηγίεςαποθήκευσηςγιατηνεκτέλεσηαπότοκύκλωμαεπεξεργασίαςγιατηνεκτέλεσητηςμεθόδου. Ημέθοδοςπεριλαμβάνειένασύστημαυπολογιστήξενιστήγιατηλήψημίαςλέξηςεντολήςμεταφοράς (ΤCW) γιαμίαλειτουργίαΙ/Ο. ΗΤCW εξειδικεύειμίαθέσημίαςή περισσοτέρωνεντολώνΙ/Οκαιμίασημαία. Ησημαίατίθεταιγιαναδείχνειότιη θέσηείναιμίαέμμεσηδιεύθυνση. Τοσύστημαυπολογιστήξενιστήεξάγειτηθέσητηςμίαςή περισσοτέρωνεντολώνΙ/ΟκαιτησημαίααπότηνΤCW. Τοσύστημαυπολογιστήξενιστήσυλλέγειτημίαή περισσότερεςεντολέςΙ/ΟσεαπόκρισηπροςτηθέσηπουεξειδικεύεταιαπότηνΤCW καιτησημαίακαιακολούθωςπροωθείτημίαή περισσότερεςεντολέςΙ/Οπροςτημονάδαελέγχουγιαεκτέλεση.
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