Packet processor memory interface with active packet list

Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique

Reexamination Certificate

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Details

C711S135000, C711S156000, C711S158000, C711S221000, C370S394000, C712S218000, C712S225000, C709S216000, C709S229000, C710S052000

Reexamination Certificate

active

07487304

ABSTRACT:
A mechanism receives start and done commands containing packet identifiers or sequence numbers from a packet processing engine for packets for which processing is being started and for which processing has completed respectively. Upon receiving a packet start command, an entry in an active packet list is created. Upon receiving a packet done command, the active packet list is updated. The oldest done packet in the active list is retired by flushing buffered write information to a memory system. The active packet list can be used in conjunction with a system supporting speculative reads and conflict detection. In some embodiments the packet start command is inferred from a read command containing a packet identifier or sequence number.

REFERENCES:
patent: 4491945 (1985-01-01), Turner
patent: 5193188 (1993-03-01), Franaszek et al.
patent: 5269017 (1993-12-01), Hayden et al.
patent: 5471521 (1995-11-01), Minakami
patent: 5655096 (1997-08-01), Branigin
patent: 5878117 (1999-03-01), Minakami
patent: 5905998 (1999-05-01), Ebrahim
patent: 5931957 (1999-08-01), Konigsburg
patent: 6079006 (2000-06-01), Pickett
patent: 6327625 (2001-12-01), Wang et al.
patent: 6389016 (2002-05-01), Sabaa
patent: 6463472 (2002-10-01), Van Loo
patent: 6553430 (2003-04-01), Keller
patent: 6557048 (2003-04-01), Keller et al.
patent: 6611883 (2003-08-01), Avery
patent: 6665708 (2003-12-01), Tikekar
patent: 6665755 (2003-12-01), Modelski
patent: 6721813 (2004-04-01), Owen et al.
patent: 6738379 (2004-05-01), Balazinski
patent: 6763436 (2004-07-01), Gabber
patent: 6981110 (2005-12-01), Melvin
patent: 7013346 (2006-03-01), Tucker
patent: 7062638 (2006-06-01), Yoaz
patent: 7089404 (2006-08-01), Rozas
patent: 7107402 (2006-09-01), Melvin
patent: 7124205 (2006-10-01), Craft et al.
patent: 2002/0073285 (2002-06-01), Butterworth
patent: 2002/0112100 (2002-08-01), Zimmerman
patent: 2002/0116587 (2002-08-01), Modelski
S. Melvin, Y. Patt, “Handling of Packet Dependencies: A Critical Issue for Highly Parallel Network Processors,” International Conference on Compilers, Architectures, and Synthesis for Embedded Systems, Oct. 8-11, 2002, Grenoble, France.
M. Franklin, G. Sohi, “ARB: A hardware mechanism for dynamic reordering of memory references,” IEEE Transactions on Computers, vol. 45, pp. 552-571, May 1996.
S. Gopal, T. N. Vijakumar, J. E. Smith, G. S. Sohi, “Speculative versioning cache,” Proceedings of the Fourth International Symposium on High-Performance Computer Architecture (HPCA-4), Las Vegas, Feb. 1998.
G. Sohi, S. Breach, T. Vijaykumar, “Multiscalar processors,” Proceedings of the 22nd Annual International Symposium on Computer Architecture, pp. 414-425, Ligure, Italy, Jun. 1995.
J. G. Steffan, T. Mowry, “The potential for using thread-level data speculation to facilitate automatic parallelization,” Proceedings of the Fourth International Symposium on High-Performance Computer Architecture (HPCA-4), Las Vegas, Feb. 1998.
L. Hammond, M. Willey, Kunle Olukotun, “Data Speculation Support for a Chip Multiprocessor,” Proceedings of the Eighth International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS-VIII), San Jose, Oct. 1998.
J. Steffan, C. Colohan, Antonia Zhai, T. Mowry, “A Scalable Approach to Thread-Level Speculation,” Proceedings of the 27th Annual International Symposium on Computer Architecture, Vancouver, Canada, Jun. 2000.
M. Cintra, J. Martinez, J. Torrellas, “Architecture Support for Scalable Speculative Parallelization in Shared-Memory Multiprocessors,” Proceedings of the 27th Annual International Symposium on Computer Architecture, Vancouver, Canada, Jun. 2000.
J. Martinez, J. Torrellas, “Speculative Locks for Concurrent Execution of Critical Sections in Shared-Memory Multiprocessors,” Workshop on Memory Performance Issues, International Symposium on Computer Architecture, Göteborg, Sweden, Jun. 2001.
R. Rajwar, J. Goodman, “Speculative Lock Elision: Enalbing Highly Concurrent Multithreaded Execution,” Proceedings of the 34th Annual International Symposium on Microarchitecture, Austin, Texas, Dec. 2001.
M. Herlihy, J.E.B. Moss, “Transactional Memory: Architectural Support for Lock-Free Data Structures,” Proceedings of the International Conference on Computer Architecture, pp. 289-300, San Diego, California, May 1993.
R. S. Tomlinson, “Selecting Sequence Numbers,” ACM Computer Communication Review, 25(1), pp. 45-53, Jan. 1995, originally published in Proceedings of ACM SIGCOMM/SIGOPS Interprocess Communications Workshop, Santa Monica, CA, Mar. 1975.

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