Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output command process
Reexamination Certificate
2007-10-31
2011-12-06
Kindred, Alford (Department: 2181)
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output command process
C710S036000, C711S146000
Reexamination Certificate
active
08073981
ABSTRACT:
A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.
REFERENCES:
patent: 2009/0031058 (2009-01-01), Radhakrishnan et al.
Ajanovic Jasmin
Akiyama James
Barry Peter
Bhatt Ajay
Blankenship Robert
Intel Corporation
Kindred Alford
Martinez David
McAbee David P.
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