Patents by Inventor Debendra Das Sharma
Debendra Das Sharma has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8447888Abstract: 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.Type: GrantFiled: December 9, 2011Date of Patent: May 21, 2013Assignee: Intel CorporationInventors: Jasmin Ajanovic, Mahesh Wagh, Prashant Sethi, Debendra Das Sharma, David Harriman, Mark Rosenbluth, Ajay Bhatt, Peter Barry, Scott Dion Rodgers, Anil Vasudevan, Sridhar Muthrasanallur, James Akiyama, Robert Blankenship, Ohad Falik, Abraham Mendelson, Ilan Pardo, Eran Tamari, Eliezer Weissmann, Doron Shamia
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Publication number: 20130111086Abstract: 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.Type: ApplicationFiled: November 30, 2012Publication date: May 2, 2013Inventors: Jasmin Ajanovic, Mahesh Wagh, Prashant Sethi, Debendra Das Sharma, David J. Harriman, Mark B. Rosenbluth, Ajay V. Bhatt, Peter Barry, Scott Dion Rodgers, Anil Vasudevan, Sridhar Muthrasanallur, James Akiyama, Robert G. Blankenship, Ohad Falik, Avi Mendelson, Ilan Pardo, Eran Tamari, Eliezer Weissmann, Doron Shamia
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Publication number: 20130097353Abstract: 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.Type: ApplicationFiled: December 6, 2012Publication date: April 18, 2013Inventors: Jasmin Ajanovic, Mahesh Wagh, Prashant Sethi, Debendra Das Sharma, David J. Harriman, Mark B. Rosenbluth, Ajay V. Bhatt, Peter Barry, Scott Dion Rodgers, Anil Vasudevan, Sridhar Muthrasanallur, James Akiyama, Robert G. Blankenship, Ohad Falik, Avi Mendelson, Ilan Pardo, Eran Tamari, Eliezer Weissmann, Doron Shamia
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Publication number: 20130091317Abstract: 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.Type: ApplicationFiled: November 30, 2012Publication date: April 11, 2013Inventors: Jasmin Ajanovic, Mahesh Wagh, Prashant Sethi, Debendra Das Sharma, David J. Harriman, Mark B. Rosenbluth, Ajay V. Bhatt, Peter Barry, Scott Dion Rodgers, Anil Vasudevan, Sridhar Muthrasanallur, James Akiyama, Robert G. Blankenship, Ohad Falik, Avi Mendelson, Ilan Pardo, Eran Tamari, Eliezer Weissmann, Doron Shamia
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Publication number: 20130086339Abstract: Method, apparatus, and systems employing novel delayed dictionary update schemes for dictionary-based high-bandwidth lossless compression. A pair of dictionaries having entries that are synchronized and encoded to support compression and decompression operations are implemented via logic at a compressor and decompressor. The compressor/decompressor logic operatives in a cooperative manner, including implementing the same dictionary update schemes, resulting in the data in the respective dictionaries being synchronized. The dictionaries are also configured with replaceable entries, and replacement policies are implemented based on matching bytes of data within sets of data being transferred over the link. Various schemes are disclosed for entry replacement, as well as a delayed dictionary update technique. The techniques support line-speed compression and decompression using parallel operations resulting in substantially no latency overhead.Type: ApplicationFiled: October 1, 2011Publication date: April 4, 2013Inventors: Ilan Pardo, Ido Y. Soffair, Dror Reif, Debendra Das Sharma, Akshay G. Pethe
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Publication number: 20130082851Abstract: Method, apparatus, and systems employing dictionary-based high-bandwidth lossless compression. A pair of dictionaries having entries that are synchronized and encoded to support compression and decompression operations are implemented via logic at a compressor and decompressor. The compressor/decompressor logic operatives in a cooperative manner, including implementing the same dictionary update schemes, resulting in the data in the respective dictionaries being synchronized. The dictionaries are also configured with replaceable entries, and replacement policies are implemented based on matching bytes of data within sets of data being transferred over the link. Various schemes are disclosed for entry replacement, as well as a delayed dictionary update technique. The techniques support line-speed compression and decompression using parallel operations resulting in substantially no latency overhead.Type: ApplicationFiled: October 1, 2011Publication date: April 4, 2013Inventors: Ilan Pardo, Ido Y. Soffair, Dror Reif, Debendra Das Sharma, Akshay G. Pethe
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Publication number: 20120254563Abstract: 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.Type: ApplicationFiled: June 11, 2012Publication date: October 4, 2012Inventors: Jasmin Ajanovic, Mahesh Wagh, Prashant Sethi, Debendra Das Sharma, David Harriman, Mark Rosenbluth, Ajay Bhatt, Peter Barry, Scott Dion Rodgers, Anil Vasudevan, Sridhar Muthrasanallur, James Akiyama, Robert Blankenship, Ohad Falik, Avi Abraham Mendelson, Ilan Pardo, Eran Tamari, Eliezer Weissmann, Doron Shamia
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Publication number: 20120226848Abstract: Methods and apparatus relating to increase Input Output Hubs in constrained link based multi-processor systems are described. In one embodiment, a first input output hub (IOH) and a second IOH are coupled a link interconnect and a plurality of processors, coupled to the first and second IOHs include pre-allocated resources for a single IOH. Other embodiments are also disclosed and claimed.Type: ApplicationFiled: March 2, 2011Publication date: September 6, 2012Inventors: Debendra Das Sharma, Chandra P. Joshi, Gurushankar Rajamani
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Patent number: 8230119Abstract: 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.Type: GrantFiled: August 23, 2010Date of Patent: July 24, 2012Assignee: Intel CorporationInventors: Jasmin Ajanovic, Mahesh Wagh, Prashant Sethi, Debendra Das Sharma, David Harriman, Mark Rosenbluth, Ajay Bhatt, Peter Barry, Scott Dion Rodgers, Anil Vasudevan, Sridhar Muthrasanallur, James Akiyama, Robert Blankenship, Ohad Falik, Abraham Mendelson, Ilan Pardo, Eran Tamari, Eliezer Weissmann, Doron Shamia
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Patent number: 8230120Abstract: 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.Type: GrantFiled: March 28, 2011Date of Patent: July 24, 2012Assignee: Intel CorporationInventors: Jasmin Ajanovic, Mahesh Wagh, Prashant Sethi, Debendra Das Sharma, David Harriman, Mark Rosenbluth, Ajay Bhatt, Peter Barry, Scott Dion Rodgers, Anil Vasudevan, Sridhar Muthrasanallur, James Akiyama, Robert Blankenship, Ohad Falik, Abraham Mendelson, Ilan Pardo, Eran Tamari, Eliezer Weissmann, Doron Shamia
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Patent number: 8209563Abstract: Various embodiments of the invention provide a frequency shifter to vary the frequency of data transmitted over time, such as to increase and decrease the frequency of test data transmitted over time to verify a digital communication device's ability to receive data having various frequencies within a specific parameter range. The frequency shifter includes a frequency modifier to shift or vary an input clock frequency to a variety of output clock frequencies, such as according to a test protocol. The frequency shifter also includes an elastic data buffer to receive the test data at the input clock frequency and to output the test data at the plurality of output clock frequencies provided by the frequency modifier.Type: GrantFiled: April 8, 2010Date of Patent: June 26, 2012Assignee: Intel CorporationInventors: Debendra Das Sharma, Gurushankar Rajamani, Hanh Hoang
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Publication number: 20120089750Abstract: 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.Type: ApplicationFiled: December 9, 2011Publication date: April 12, 2012Inventors: Jasmin Ajanovic, Mahesh Wagh, Prashant Sethi, Debendra Das Sharma, David Harriman, Mark Rosenbluth, Ajay Bhatt, Peter Barry, Scott Dion Rodgers, Anil Vasudevan, Sridhar Muthrasanallur, James Akiyama, Robert Blankenship, Ohad Falik, Avi (Abraham) Mendelson, Ilan Pardo, Eran Tamari, Eliezer Weissmann, Doron Shamia
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Publication number: 20120079156Abstract: Methods and apparatus for implementing the Intel QuickPath Interconnect® (QPI) protocol over a PCIe interface. The upper layers of the QPI protocol are implemented over a physical layer of the PCIe interface via use of QPI data bit mappings onto corresponding PCIe x16, x8, and x4 lane configurations. A QPI link layer to PCIe physical layer interface is employed to abstract the QPI link, routing, and protocol layers from the underlying PCIe physical layer (and corresponding PCIe interface circuitry), enabling QPI protocol messages to be employed over PCIe hardware. Thus, QPI functionality, such as support for coherent memory transactions, may be implemented over PCIe interface circuitry.Type: ApplicationFiled: September 24, 2010Publication date: March 29, 2012Inventors: Robert J. Safranek, Debendra Das Sharma, Ganapati N. Srinivasa
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Publication number: 20120079312Abstract: A method and system of error recovery of a device attached to a platform without requiring a system reset. In one embodiment of the invention, a platform detects an error(s) of an attached device and shuts down the communication link with the attached device. The platform corrects the error(s) and automatically re-trains the communication link with the attached device. In this way, no reset of the platform is required to correct the detected error(s) in one embodiment of the invention.Type: ApplicationFiled: September 24, 2010Publication date: March 29, 2012Inventors: SRIDHAR MUTHRASANALLUR, Debendra Das Sharma, Javakrishna P.S, Eric R. Wehage
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Publication number: 20120036293Abstract: 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.Type: ApplicationFiled: August 4, 2011Publication date: February 9, 2012Inventors: Jasmin Ajanovic, Mahesh Wagh, Prashant Sethi, Debendra Das Sharma, David Harriman, Mark Rosenbluth, Ajay Bhatt, Peter Barry, Scott Dion Rodgers, Anil Vasudevan, Sridhar Muthrasanallur, James Akiyama, Robert Blankenship, Ohad Falik, Avi (Abraham) Mendelson, Ilan Pardo, Eran Tamari, Eliezer Weissmann, Doron Shamia
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Patent number: 8111704Abstract: In one embodiment, the present invention includes a method for comparing a packet header to a stored packet header, generating a comparison vector based on the comparison, and transmitting the packet from the transmitter without the packet header if the packet header and the stored packet header match. A data portion of the packet may be compressed and transmitted using a different compression technique. Other embodiments are described and claimed.Type: GrantFiled: June 26, 2009Date of Patent: February 7, 2012Assignee: Intel CorporationInventors: Abhishek Singhal, Debendra Das Sharma, Jesus Palomino, Mario A. Rubio
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Patent number: 8099523Abstract: 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.Type: GrantFiled: March 28, 2011Date of Patent: January 17, 2012Assignee: Intel CorporationInventors: Jasmin Ajanovic, Mahesh Wagh, Prashant Sethi, Debendra Das Sharma, David Harriman, Mark Rosenbluth, Ajay Bhatt, Peter Barry, Scott Dion Rodgers, Anil Vasudevan, Sridhar Muthrasanallur, James Akiyama, Robert Blankenship, Ohad Falik, Abraham Mendelson, Ilan Pardo, Eran Tamari, Eliezer Weissmann, Doron Shamia
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Patent number: 8073981Abstract: 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.Type: GrantFiled: October 31, 2007Date of Patent: December 6, 2011Assignee: Intel CorporationInventors: Jasmin Ajanovic, Mahesh Wagh, Prashant Sethi, Debendra Das Sharma, David Harriman, Mark Rosenbluth, Ajay Bhatt, Peter Barry, Scott Dion Rodgers, Anil Vasudevan, Sridhar Muthrasanallur, James Akiyama, Robert Blankenship, Ohad Falik, Avi (Abraham) Mendelson, Ilan Pardo, Eran Tamari, Eliezer Weissmann, Doron Shamia
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Publication number: 20110238882Abstract: 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.Type: ApplicationFiled: March 28, 2011Publication date: September 29, 2011Inventors: Jasmin Ajanovic, Mahesh Wagh, Prashant Sethi, Debendra Das Sharma, David Harriman, Mark Rosenbluth, Ajay Bhatt, Peter Barry, Scott Dion Rodgers, Anil Vasudevan, Sridhar Muthrasanallur, James Akiyama, Robert Blankenship, Ohad Falik, Avi (Abraham) Mendelson, Ilan Pardo, Eran Tamari, Eliezer Weissmann, Doron Shamia
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Publication number: 20110208925Abstract: 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.Type: ApplicationFiled: August 23, 2010Publication date: August 25, 2011Inventors: Jasmin Ajanovic, Mahesh Wagh, Prashant Sethi, Debendra Das Sharma, David Harriman, Mark Rosenbluth, Ajay Bhatt, Peter Barry, Scott Dion Rodgers, Anil Vasudevan, Sridhar Muthrasanallur, James Akiyama, Robert Blankenship, Ohad Falik, Avi (Abraham) Mendelson, Ilan Pardo, Eran Tamari, Eliezer Weissmann, Doron Shamia