Patent ID: 7818472
Filing Date: 2010-10-19
Classification: G06F

Abstract:
1. A method of packaging a plurality of repeating commands for device command word (DCW) processing in a computer environment having an I/O link handling complex instruction chains for a processing operation, the method comprising: packaging locate record information into DCW prefix parameter data, the locate record information including an intent count argument; and embedding the plurality of repeating commands as a truncated concatenation to the locate record information, the plurality of repeating commands identified by redefining the intent count argument for the plurality of repeating commands as a repeat count argument using a flag argument incorporated into the locate record information, the repeat count argument indicating a number of times for a control unit in the computer environment to execute the plurality of repeating commands, wherein embedding the plurality of repeating commands as a truncated concatenation to the locate record information further includes embedding a channel control word (CCW) parameter in the locate record information to specify which command the plurality of repeating commands will repeat.