Patents by Inventor Elbert C. Hu
Elbert C. Hu 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: 8332531Abstract: A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, mechanisms for handling memory management and optimization within a system utilizing an offload network adapter are provided. The memory management mechanism permits both buffered sending and receiving of data as well as zero-copy sending and receiving of data. In addition, the memory management mechanism permits grouping of DMA buffers that can be shared among specified connections based on any number of attributes. The memory management mechanism further permits partial send and receive buffer operation, delaying of DMA requests so that they may be communicated to the host system in bulk, and expedited transfer of data to the host system.Type: GrantFiled: March 10, 2011Date of Patent: December 11, 2012Assignee: International Business Machines CorporationInventors: Douglas M. Freimuth, Elbert C. Hu, Ronald Mraz, Erich M. Nahum, Prashant Pradhan, Sambit Sahu, John M. Tracey
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Patent number: 8316109Abstract: A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, mechanisms for handling memory management and optimization within a system utilizing an offload network adapter are provided. The memory management mechanism permits both buffered sending and receiving of data as well as zero-copy sending and receiving of data. In addition, the memory management mechanism permits grouping of DMA buffers that can be shared among specified connections based on any number of attributes. The memory management mechanism further permits partial send and receive buffer operation, delaying of DMA requests so that they may be communicated to the host system in bulk, and expedited transfer of data to the host system.Type: GrantFiled: March 10, 2011Date of Patent: November 20, 2012Assignee: International Business Machines CorporationInventors: Douglas M. Freimuth, Elbert C. Hu, Ronald Mraz, Erich M. Nahum, Prashant Pradhan, Sambit Sahu, John M. Tracey
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Publication number: 20110167134Abstract: A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, mechanisms for handling memory management and optimization within a system utilizing an offload network adapter are provided. The memory management mechanism permits both buffered sending and receiving of data as well as zero-copy sending and receiving of data. In addition, the memory management mechanism permits grouping of DMA buffers that can be shared among specified connections based on any number of attributes. The memory management mechanism further permits partial send and receive buffer operation, delaying of DMA requests so that they may be communicated to the host system in bulk, and expedited transfer of data to the host system.Type: ApplicationFiled: March 10, 2011Publication date: July 7, 2011Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Douglas Morgan Freimuth, Elbert C. Hu, Ronald Mraz, Erich M. Nahum, Prashant Pradhan, Sambit Sahu, John Michael Tracey
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Publication number: 20110161456Abstract: A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, mechanisms for handling memory management and optimization within a system utilizing an offload network adapter are provided. The memory management mechanism permits both buffered sending and receiving of data as well as zero-copy sending and receiving of data. In addition, the memory management mechanism permits grouping of DMA buffers that can be shared among specified connections based on any number of attributes. The memory management mechanism further permits partial send and receive buffer operation, delaying of DMA requests so that they may be communicated to the host system in bulk, and expedited transfer of data to the host system.Type: ApplicationFiled: March 10, 2011Publication date: June 30, 2011Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Douglas Morgan Freimuth, Elbert C. Hu, Ronald Mraz, Erich M. Nahum, Prashant Pradhan, Sambit Sahu, John Michael Tracey
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Patent number: 7962628Abstract: A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, a mechanism for improving connection establishment in a system utilizing an offload network adapter is provided. The connection establishment mechanism provides the ability to offload connection establishment and maintenance of connection state information to the offload network adapter. As a result of this offloading of connection establishment and state information maintenance, the number of communications needed between the host system and the offload network adapter may be reduced. In addition, offloading of these functions to the offload network adapter permits bulk notification of established connections and state information to the host system rather than piecemeal notifications as is present in known computing systems.Type: GrantFiled: May 12, 2009Date of Patent: June 14, 2011Assignee: International Business Machines CorporationInventors: Douglas Morgan Freimuth, Elbert C. Hu, Ronald Mraz, Erich M. Nahum, Prashant Pradhan, Sambit Sahu, John Michael Tracey
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Patent number: 7930422Abstract: A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, mechanisms for handling memory management and optimization within a system utilizing an offload network adapter are provided. The memory management mechanism permits both buffered sending and receiving of data as well as zero-copy sending and receiving of data. In addition, the memory management mechanism permits grouping of DMA buffers that can be shared among specified connections based on any number of attributes. The memory management mechanism further permits partial send and receive buffer operation, delaying of DMA requests so that they may be communicated to the host system in bulk, and expedited transfer of data to the host system.Type: GrantFiled: July 14, 2004Date of Patent: April 19, 2011Assignee: International Business Machines CorporationInventors: Douglas Morgan Freimuth, Elbert C. Hu, Ronald Mraz, Erich M. Nahum, Prashant Pradhan, Sambit Sahu, John Michael Tracey
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Publication number: 20090222564Abstract: A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, a mechanism for improving connection establishment in a system utilizing an offload network adapter is provided. The connection establishment mechanism provides the ability to offload connection establishment and maintenance of connection state information to the offload network adapter. As a result of this offloading of connection establishment and state information maintenance, the number of communications needed between the host system and the offload network adapter may be reduced. In addition, offloading of these functions to the offload network adapter permits bulk notification of established connections and state information to the host system rather than piecemeal notifications as is present in known computing systems.Type: ApplicationFiled: May 12, 2009Publication date: September 3, 2009Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Douglas Morgan Freimuth, Elbert C. Hu, Ronald Mraz, Erich M. Nahum, Prashant Pradhan, Sambit Sahu, John Michael Tracey
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Patent number: 7533176Abstract: A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, a mechanism for improving connection establishment in a system utilizing an offload network adapter is provided. The connection establishment mechanism provides the ability to offload connection establishment and maintenance of connection state information to the offload network adapter. As a result of this offloading of connection establishment and state information maintenance, the number of communications needed between the host system and the offload network adapter may be reduced. In addition, offloading of these functions to the offload network adapter permits bulk notification of established connections and state information to the host system rather than piecemeal notifications as is present in known computing systems.Type: GrantFiled: July 14, 2004Date of Patent: May 12, 2009Assignee: International Business Machines CorporationInventors: Douglas Morgan Freimuth, Elbert C. Hu, Ronald Mraz, Erich M. Nahum, Prashant Pradhan, Sambit Sahu
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Patent number: 7493427Abstract: A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, an improved mechanism for handling receipt of data packets in a system utilizing an offload network adapter. The offload network adapter may include logic that permits the offload network adapter to delay notification of data reception to the host system in different ways. The advantage of delaying the notice of data packet reception to the host system is the potential for aggregation of several data packets, which can arrive immediately after the first one, for example, in a single notification. Given a stream with continuous data packet arrival, a value may be set, either statically or dynamically, for notification delay and this value may be configurable for the host system per communication socket.Type: GrantFiled: July 14, 2004Date of Patent: February 17, 2009Assignee: International Business Machines CorporationInventors: Douglas Morgan Freimuth, Elbert C. Hu, Ronald Mraz, Erich M. Nahum, Prashant Pradhan, Sambit Sahu, John Michael Tracey