The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2013
Filed:
Jan. 16, 2012
John R. Flanagan, Poughkeepsie, NY (US);
Daniel F. Casper, Poughkeepsie, NY (US);
Matthew J. Kalos, Tucson, AZ (US);
Dale F. Riedy, Poughkeepsie, NY (US);
Gustav E. Sittmann, Webster Groves, MO (US);
Ugochukwu C. Njoku, Yonkers, NY (US);
Catherine C. Huang, Poughkeepsie, NY (US);
John R. Flanagan, Poughkeepsie, NY (US);
Daniel F. Casper, Poughkeepsie, NY (US);
Matthew J. Kalos, Tucson, AZ (US);
Dale F. Riedy, Poughkeepsie, NY (US);
Gustav E. Sittmann, Webster Groves, MO (US);
Ugochukwu C. Njoku, Yonkers, NY (US);
Catherine C. Huang, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
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 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, 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.