Method to preserve ordering of read and write operations in...

Details Method to preserve ordering of read and write operations in... Method to preserve ordering of read and write operations in...

2007-07-10

2007-07-10

Nguyen, Hiep T. (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C710S040000

Reexamination Certificate

active

11054403

ABSTRACT:
A method, system and computer program product for handling write requests in a data processing system is disclosed. The method comprises receiving on an interconnect bus a first write request targeted to a first address and receiving on the interconnect bus a subsequent second write request targeted to a subsequent second address. The subsequent second write request is completed prior to completing the first write request, and, responsive to receiving a read request targeting the second address before the first write request has completed, data associated with the second address of the second write request is supplied only after the first write request completes.

REFERENCES:
patent: 6738874 (2004-05-01), Zsohar
patent: 6842830 (2005-01-01), Khare et al.
patent: 6957311 (2005-10-01), Kanamaru et al.
patent: 7047374 (2006-05-01), Sah et al.

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