Transaction ID filtering for buffered programmed...

Details Transaction ID filtering for buffered programmed... Transaction ID filtering for buffered programmed...

2009-12-14

2011-10-04

Tsai, Henry (Department: 2184)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output data buffering

C711S118000

Reexamination Certificate

active

08032673

ABSTRACT:
A PIO transaction unit includes an input buffer, a response buffer, and a control unit. The input buffer may receive and store PIO write operations sent by one or more transactons sources. Each PIO write operation may include a source identifier that identifies the transaction source. The response buffer may store response operations corresponding to respective PIO write operations that are to be transmitted to the transaction source identified by the identifier. The control unit may store a particular response operation corresponding to the given PIO write operation in the response buffer prior to the given PIO write operation being sent from the input buffer. The control unit may store the particular response operation within the response buffer if the given PIO write operation is bufferable and there is no non-bufferable PIO write operation having a same source identifier stored in the input buffer.

REFERENCES:
patent: 6721799 (2004-04-01), Slivkoff
patent: 7562366 (2009-07-01), Pope et al.
patent: 7730077 (2010-06-01), Hinshaw et al.
patent: 2004/0167992 (2004-08-01), Carnevale et al.
patent: 2009/0070514 (2009-03-01), Moriyama et al.

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