08631175 cites 254 patents.

A method of performing an input/output operation includes: generating by a channel subsystem at least one command message including one or more device command words (DCWs), at least one DCW including a data count and a suppress-length indication (SLI) configured to instruct a control unit whether to continue to perform the I/O operation in response to an incorrect length condition; forwarding the at least one command message to the control unit; receiving an incorrect length (IL) value from the control unit and storing an IL indicator in a subchannel-status word, the IL indicator representing the IL value, the IL value being a first IL value in response to a first SLI value and the data count not matching the amount of data required, the IL value being a second IL value in response to a second SLI value and the data count not matching the amount of data required.

Title
Facilitating transport mode input/output operations between a channel subsystem and input/output devices
Application Number
13/780711
Publication Number
8631175 (B2)
Application Date
February 28, 2013
Publication Date
January 14, 2014
Inventor
Harry M Yudenfriend
Poughkeepsie
NY, US
Dale F Riedy
Poughkeepsie
NY, US
Louis W Ricci
Hyde Park
NY, US
Matthew J Kalos
Tucson
AZ, US
Roger G Hathorn
Tucson
AZ, US
John R Flanagan
Poughkeepsie
NY, US
Daniel F Casper
Poughkeepsie
NY, US
Scott M Carlson
Tucson
AZ, US
Susan K Candelaria
Tucson
AZ, US
Agent
Steven Chiu
Cantor Colburn
Assignee
International Business Machines Corporation
NY, US
IPC
G06F 3/00
G06F 13/00
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