Patents by Inventor Kenneth G. Keels
Kenneth G. Keels 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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Publication number: 20220360533Abstract: Methods, apparatus and software for implementing enhanced data center congestion management for non-TCP traffic. Non-congested transmit latencies are determined for transmission of packets or Ethernet frames along paths between source and destination end-end-nodes when congestion along the paths is not present or minimal. Transmit latencies are similarly measured along the same source-destination paths during ongoing operations during which traffic congestion may vary. Based on whether a difference between the transmit latency for a packet or frame and the non-congested transmit latency for the path exceeds a threshold, the path is marked as congested or not congested. A rate at which the non-TCP packets are transmitted along the path is then managed as function of a rate at which the path is marked as congested.Type: ApplicationFiled: May 24, 2022Publication date: November 10, 2022Inventors: Ygdal Naouri, Robert O. Sharp, Kenneth G. Keels, Eric W. Multanen
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Publication number: 20220350499Abstract: As described herein, for a selected process identifier and virtual address, a page fault arising from multiple sources can be solved by a one-time operation. The selected process identifier can include a virtual function (VF) identifier or process address space identifier (PASID). In some examples, solving a page fault arising from multiple sources by a one-time operation comprises invoking a page fault handler to determine an address translation.Type: ApplicationFiled: May 16, 2022Publication date: November 3, 2022Inventors: Shaopeng HE, Yadong LI, Anjali Singhai JAIN, Kenneth G. KEELS, Andrzej SAWULA, Kun TIAN, Ashok RAJ, Rupin H. VAKHARWALA, Rajesh M. SANKARAN, Saurabh GAYEN, Baolu LU, Yan ZHAO
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Publication number: 20220261178Abstract: Examples described herein relate to a packet processing device that includes circuitry to receive an address translation for a virtual to physical address prior to receipt of a GPUDirect remote direct memory access (RDMA) operation, wherein the address translation is provided at initiation of a process executed by a host system and circuitry to apply the address translation for a received GPUDirect RDMA operation.Type: ApplicationFiled: March 7, 2022Publication date: August 18, 2022Inventors: Shaopeng HE, Yadong LI, Anjali Singhai JAIN, Kun TIAN, Yan ZHAO, Yaozu DONG, Baolu LU, Rajesh M. SANKARAN, Eliel LOUZOUN, Rupin H. VAKHARWALA, David HARRIMAN, Saurabh GAYEN, Philip LANTZ, Israel BEN SHAHAR, Kenneth G. KEELS
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Publication number: 20200220816Abstract: Methods, apparatus and software for implementing enhanced data center congestion management for non-TCP traffic. Non-congested transmit latencies are determined for transmission of packets or Ethernet frames along paths between source and destination end-end-nodes when congestion along the paths is not present or minimal. Transmit latencies are similarly measured along the same source-destination paths during ongoing operations during which traffic congestion may vary. Based on whether a difference between the transmit latency for a packet or frame and the non-congested transmit latency for the path exceeds a threshold, the path is marked as congested or not congested. A rate at which the non-TCP packets are transmitted along the path is then managed as function of a rate at which the path is marked as congested.Type: ApplicationFiled: March 13, 2020Publication date: July 9, 2020Applicant: Intel CorporationInventors: Ygdal Naouri, Robert O. Sharp, Kenneth G. Keels, Eric W. Multanen
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Patent number: 10708187Abstract: Methods, apparatus and software for implementing enhanced data center congestion management for non-TCP traffic. Non-congested transit latencies are determined for transmission of packets or Ethernet frames along paths between source and destination end-end-nodes when congestion along the paths is not present or minimal. Transit latencies are similarly measured along the same source-destination paths during ongoing operations during which traffic congestion may vary. Based on whether a difference between the transit latency for a packet or frame and the non-congested transit latency for the path exceeds a threshold, the path is marked as congested or not congested. A rate at which the non-TCP packets are transmitted along the path is then managed as function of a rate at which the path is marked as congested.Type: GrantFiled: May 22, 2014Date of Patent: July 7, 2020Assignee: Intel CorporationInventors: Ygdal Naouri, Robert O. Sharp, Kenneth G. Keels, Eric W. Multanen
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Patent number: 10467182Abstract: In an embodiment of the present invention, a method includes partitioning a plurality of remote direct memory access context objects among a plurality of virtual functions, establishing a remote direct memory access connection between a first of the plurality of virtual functions, and migrating the remote direct memory access connection from the first of the plurality of virtual functions to a second of the plurality of virtual functions without disconnecting from the remote peer.Type: GrantFiled: May 19, 2016Date of Patent: November 5, 2019Assignee: Intel CorporationInventors: Robert O. Sharp, Kenneth G. Keels
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Patent number: 10051038Abstract: Generally, this disclosure relates to a shared send queue in a networked system. A method, apparatus and system are configured to support a plurality of reliable communication channels using a shared send queue. The reliable communication channels are configured to carry messages from a host to a plurality of destinations and to ensure completed order of messages is related to a transmission order.Type: GrantFiled: December 23, 2011Date of Patent: August 14, 2018Assignee: Intel CorporationInventors: Vadim Makhervaks, Robert O. Sharp, Brian Hausauer, Kenneth G. Keels, Donald E. Wood
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Patent number: 9558146Abstract: Apparatus, method and system for supporting Remote Direct Memory Access (RDMA) Read V2 Request and Response messages using the Internet Wide Area RDMA Protocol (iWARP). iWARP logic in an RDMA Network Interface Controller (RNIC) is configured to generate a new RDMA Read V2 Request message and generate a new RDMA Read V2 Response message in response to a received RDMA Read V2 Request message, and send the messages to an RDMA remote peer using iWARP implemented over an Ethernet network. The iWARP logic is further configured to process RDMA Read V2 Response messages received from the RDMA remote peer, and to write data contained in the messages to appropriate locations using DMA transfers from buffers on the RNIC into system memory. In addition, the new semantics removes the need for extra operations to grant and revoke remote access rights.Type: GrantFiled: July 18, 2013Date of Patent: January 31, 2017Assignee: Intel CorporationInventors: Robert O. Sharp, Donald E. Wood, Kenneth G. Keels
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Patent number: 9507752Abstract: Methods, apparatus and systems for reducing usage of Doorbell Rings in connection with RDMA operations. A portion of system memory is employed as a Memory-Mapped Input/Output (MMIO) address space configured to be accessed via a hardware networking device. A Send Queue (SQ) is stored in MMIO and is used to facilitate processing of Work Requests (WRs) that are written to SQ entries by software and read from the SQ via the hardware networking device. The software and logic in the hardware networking device employ pointers identifying locations in the SQ corresponding to a next write WR entry slot and last read WR entry slot that are implemented to enable WRs to be written to and read from the SQ during ongoing operations under which the SQ is not emptied such that doorbell rings to notify the hardware networking device that new WRs have been written to the SQ are not required.Type: GrantFiled: September 27, 2012Date of Patent: November 29, 2016Assignee: Intel CorporationInventors: Vadim Makhervaks, Kenneth G. Keels, Brian S. Hausauer, Ali S. Oztaskin
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Publication number: 20160267053Abstract: In an embodiment of the present invention, a method includes partitioning a plurality of remote direct memory access context objects among a plurality of virtual functions, establishing a remote direct memory access connection between a first of the plurality of virtual functions, and migrating the remote direct memory access connection from the first of the plurality of virtual functions to a second of the plurality of virtual functions without disconnecting from the remote peer.Type: ApplicationFiled: May 19, 2016Publication date: September 15, 2016Inventors: Robert O. Sharp, Kenneth G. Keels
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Patent number: 9411775Abstract: Apparatus, methods and systems for supporting Send with Immediate Data messages using Remote Direct Memory Access (RDMA) and the Internet Wide Area RDMA Protocol (iWARP). iWARP logic in an RDMA Network Interface Controller (RNIC) is configured to generate different types of Send with Immediate Data messages, each including a header with a unique RDMA opcode identifying the type of Send with Immediate Data message, and send the message to an RDMA remote peer using iWARP implemented over an Ethernet network. The iWARP logic is further configured to process the Send with Immediate Data messages received from the RDMA remote peer. The Send with Immediate Data messages include a Send with Immediate Data message, a Send with Invalidate and Immediate Data message, a Send with Solicited Event (SE) and Immediate Data message, and a Send with Invalidate and SE and Immediate Data message.Type: GrantFiled: July 24, 2013Date of Patent: August 9, 2016Assignee: Intel CorporationInventors: Robert O. Sharp, Donald E. Wood, Kenneth G. Keels
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Patent number: 9405725Abstract: An embodiment may include circuitry that may write a message from a system memory in a host to a memory space in an input/output (I/O) controller in the host. A host operating system may reside, at least in part, in the system memory. The message may include both data and at least one descriptor associated with the data. The data may be included in the at least one descriptor. The circuitry also may signal the I/O controller that the writing has occurred.Type: GrantFiled: September 29, 2011Date of Patent: August 2, 2016Assignee: Intel CorporationInventors: Vadim Makhervaks, Robert O. Sharp, Kenneth G. Keels, Brian S. Hausauer, Steen K. Larsen
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Patent number: 9354933Abstract: In an embodiment of the present invention, a method includes partitioning a plurality of remote direct memory access context objects among a plurality of virtual functions, establishing a remote direct memory access connection between a first of the plurality of virtual functions, and migrating the remote direct memory access connection from the first of the plurality of virtual functions to a second of the plurality of virtual functions without disconnecting from the remote peer.Type: GrantFiled: October 31, 2011Date of Patent: May 31, 2016Assignee: Intel CorporationInventors: Robert O. Sharp, Kenneth G. Keels
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Patent number: 9276993Abstract: An apparatus is provided, for performing a direct memory access (DMA) operation between a host memory in a first server and a network adapter. The apparatus includes a host frame parser and a protocol engine. The host frame parser is configured to receive data corresponding to the DMA operation from a host interface, and is configured to insert markers on-the-fly into the data at a prescribed interval and to provide marked data for transmission to a second server over a network fabric. The protocol engine is coupled to the host frame parser. The protocol engine is configured to direct the host frame parser to insert the markers, and is configured to specify a first marker value and an offset value, whereby the host frame parser is enabled to locate and insert a first marker into the data.Type: GrantFiled: February 18, 2014Date of Patent: March 1, 2016Assignee: Intel-NE, Inc.Inventors: Kenneth G. Keels, Jeff M. Carlson, Brian S. Hausauer, David J. Maguire
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Publication number: 20150341273Abstract: Methods, apparatus and software for implementing enhanced data center congestion management for non-TCP traffic. Non-congested transmit latencies are determined for transmission of packets or Ethernet frames along paths between source and destination end-end-nodes when congestion along the paths is not present or minimal. Transmit latencies are similarly measured along the same source-destination paths during ongoing operations during which traffic congestion may vary. Based on whether a difference between the transmit latency for a packet or frame and the non-congested transmit latency for the path exceeds a threshold, the path is marked as congested or not congested. A rate at which the non-TCP packets are transmitted along the path is then managed as function of a rate at which the path is marked as congested.Type: ApplicationFiled: May 22, 2014Publication date: November 26, 2015Inventors: Ygdal Naouri, Robert O. Sharp, Kenneth G. Keels, Eric W. Multanen
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Publication number: 20150032835Abstract: Apparatus, methods and systems for supporting Send with Immediate Data messages using Remote Direct Memory Access (RDMA) and the Internet Wide Area RDMA Protocol (iWARP). iWARP logic in an RDMA Network Interface Controller (RNIC) is configured to generate different types of Send with Immediate Data messages, each including a header with a unique RDMA opcode identifying the type of Send with Immediate Data message, and send the message to an RDMA remote peer using iWARP implemented over an Ethernet network. The iWARP logic is further configured to process the Send with Immediate Data messages received from the RDMA remote peer. The Send with Immediate Data messages include a Send with Immediate Data message, a Send with Invalidate and Immediate Data message, a Send with Solicited Event (SE) and Immediate Data message, and a Send with Invalidate and SE and Immediate Data message.Type: ApplicationFiled: July 24, 2013Publication date: January 29, 2015Inventors: Robert O. Sharp, Donald E. Wood, Kenneth G. Keels
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Publication number: 20150026286Abstract: Apparatus, method and system for supporting Remote Direct Memory Access (RDMA) Read V2 Request and Response messages using the Internet Wide Area RDMA Protocol (iWARP). iWARP logic in an RDMA Network Interface Controller (RNIC) is configured to generate a new RDMA Read V2 Request message and generate a new RDMA Read V2 Response message in response to a received RDMA Read V2 Request message, and send the messages to an RDMA remote peer using iWARP implemented over an Ethernet network. The iWARP logic is further configured to process RDMA Read V2 Response messages received from the RDMA remote peer, and to write data contained in the messages to appropriate locations using DMA transfers from buffers on the RNIC into system memory. In addition, the new semantics removes the need for extra operations to grant and revoke remote access rights.Type: ApplicationFiled: July 18, 2013Publication date: January 22, 2015Inventors: Robert O. Sharp, Donald E. Wood, Kenneth G. Keels
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Publication number: 20140310369Abstract: Generally, this disclosure relates to a shared send queue in a networked system. A method, apparatus and system are configured to support a plurality of reliable communication channels using a shared send queue. The reliable communication channels are configured to carry messages from a host to a plurality of destinations and to ensure completed order of messages is related to a transmission order.Type: ApplicationFiled: December 23, 2011Publication date: October 16, 2014Inventors: Vadim Makhervaks, Robert O. Sharp, Brian Hausauer, Kenneth G. Keels, Donald E. Wood
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Publication number: 20140164471Abstract: An apparatus is provided, for performing a direct memory access (DMA) operation between a host memory in a first server and a network adapter. The apparatus includes a host frame parser and a protocol engine. The host frame parser is configured to receive data corresponding to the DMA operation from a host interface, and is configured to insert markers on-the-fly into the data at a prescribed interval and to provide marked data for transmission to a second server over a network fabric. The protocol engine is coupled to the host frame parser. The protocol engine is configured to direct the host frame parser to insert the markers, and is configured to specify a first marker value and an offset value, whereby the host frame parser is enabled to locate and insert a first marker into the data.Type: ApplicationFiled: February 18, 2014Publication date: June 12, 2014Inventors: Kenneth G. Keels, Jeff M. Carlson, Brian S. Hausauer, David J. Maguire
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Patent number: 8699521Abstract: An apparatus is provided, for performing a direct memory access (DMA) operation between a host memory in a first server and a network adapter. The apparatus includes a host frame parser and a protocol engine. The host frame parser is configured to receive data corresponding to the DMA operation from a host interface, and is configured to insert markers on-the-fly into the data at a prescribed interval and to provide marked data for transmission to a second server over a network fabric. The protocol engine is coupled to the host frame parser. The protocol engine is configured to direct the host frame parser to insert the markers, and is configured to specify a first marker value and an offset value, whereby the host frame parser is enabled to locate and insert a first marker into the data.Type: GrantFiled: January 7, 2011Date of Patent: April 15, 2014Assignee: Intel-NE, Inc.Inventors: Kenneth G. Keels, Jeff M. Carlson, Brian S. Hausauer, David J. Maguire