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.

Date of Patent:
Aug. 15, 2017

Filed:

Aug. 20, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Katsuyoshi Katori, Kawasaki, JP;

Yutaka Oishi, Kawasaki, JP;

Eiji Tosaka, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 12/0897 (2016.01); G06F 13/40 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0656 (2013.01); G06F 3/061 (2013.01); G06F 3/0653 (2013.01); G06F 3/0673 (2013.01); G06F 12/0897 (2013.01); G06F 13/4068 (2013.01); G06F 2212/60 (2013.01);
Abstract

A method can include transmitting a first data from a first adapter to a buffer of a channel adapter device driver at a buffer memory transfer rate. The channel adapter device driver also receives a second data at a first port of the first adapter from a host at a first time. The method also includes determining a second time to send a device end status to the host, the device end status closes a channel from the host to the first adapter. The method also includes sending the device end status to the host at the second time through the first port. The method also includes transferring the second data from the first adapter to the buffer of the channel adapter device driver.


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