Patents by Inventor Alec Kochevar-Cureton

Alec Kochevar-Cureton 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).

  • Patent number: 11907749
    Abstract: Techniques are disclosed for implementing direct memory access in a virtualized computing environment. A memory access policy of the virtualized computing environment is applied to a direct memory access connection request received from a first virtual machine via an exception path. The request is flagged to indicate that the request has been processed and the request is forwarded to a network interface device configured to execute offloaded network functions for one or more virtual machines. A memory access policy of the virtualized computing environment is applied to a direct memory access connection reply received from a second virtual machine on the exception path. The reply is flagged to indicate that the reply has been processed and the reply is forwarded to the network interface device. A direct memory access connection is established between first and second virtual machines in accordance with the request.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: February 20, 2024
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Alec Kochevar-Cureton, Somesh Chaturmohta, Norman C. Lam, Sambhrama Madhusudhan Mundkur, Daniel M. Firestone
  • Publication number: 20220276891
    Abstract: Techniques are disclosed for implementing direct memory access in a virtualized computing environment. A memory access policy of the virtualized computing environment is applied to a direct memory access connection request received from a first virtual machine via an exception path. The request is flagged to indicate that the request has been processed and the request is forwarded to a network interface device configured to execute offloaded network functions for one or more virtual machines. A memory access policy of the virtualized computing environment is applied to a direct memory access connection reply received from a second virtual machine on the exception path. The reply is flagged to indicate that the reply has been processed and the reply is forwarded to the network interface device. A direct memory access connection is established between first and second virtual machines in accordance with the request.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 1, 2022
    Inventors: Alec KOCHEVAR-CURETON, Somesh CHATURMOHTA, Norman C. LAM, Sambhrama Madhusudhan MUNDKUR, Daniel M. FIRESTONE
  • Patent number: 11360800
    Abstract: Techniques are disclosed for implementing direct memory access in a virtualized computing environment. A memory access policy of the virtualized computing environment is applied to a direct memory access connection request received from a first virtual machine via an exception path. The request is flagged to indicate that the request has been processed and the request is forwarded to a network interface device configured to execute offloaded network functions for one or more virtual machines. A memory access policy of the virtualized computing environment is applied to a direct memory access connection reply received from a second virtual machine on the exception path. The reply is flagged to indicate that the reply has been processed and the reply is forwarded to the network interface device. A direct memory access connection is established between first and second virtual machines in accordance with the request.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: June 14, 2022
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Alec Kochevar-Cureton, Somesh Chaturmohta, Norman C. Lam, Sambhrama Madhusudhan Mundkur, Daniel M. Firestone
  • Patent number: 10949379
    Abstract: Distributed computing systems, devices, and associated methods of packet routing are disclosed herein. In one embodiment, a method includes receiving, from a computing network, a packet at a packet processor of a server. The method also includes matching the received packet with a flow in a flow table contained in the packet processor and determining whether the action indicates that the received packet is to be forwarded to a NIC buffer in the outbound processing path of the packet processor instead of the NIC. The method further includes in response to determining that the action indicates that the received packet is to be forwarded to the NIC buffer, forwarding the received packet to the NIC buffer and processing the packet in the NIC buffer to forward the packet to the computer network without exposing the packet to the main processor.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: March 16, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Sambhrama Mundkur, Fengfen Liu, Norman Lam, Andrew Putnam, Somesh Chaturmohta, Daniel Firestone, Alec Kochevar-Cureton
  • Publication number: 20210034406
    Abstract: Techniques are disclosed for implementing direct memory access in a virtualized computing environment. A memory access policy of the virtualized computing environment is applied to a direct memory access connection request received from a first virtual machine via an exception path. The request is flagged to indicate that the request has been processed and the request is forwarded to a network interface device configured to execute offloaded network functions for one or more virtual machines. A memory access policy of the virtualized computing environment is applied to a direct memory access connection reply received from a second virtual machine on the exception path. The reply is flagged to indicate that the reply has been processed and the reply is forwarded to the network interface device. A direct memory access connection is established between first and second virtual machines in accordance with the request.
    Type: Application
    Filed: October 5, 2020
    Publication date: February 4, 2021
    Inventors: Alec KOCHEVAR-CURETON, Somesh CHATURMOHTA, Norman C. LAM, Sambhrama Madhusudhan MUNDKUR, Daniel M. FIRESTONE
  • Patent number: 10831523
    Abstract: Techniques are disclosed for implementing direct memory access in a virtualized computing environment. A memory access policy of the virtualized computing environment is applied to a direct memory access connection request received from a first virtual machine via an exception path. The request is flagged to indicate that the request has been processed and the request is forwarded to a network interface device configured to execute offloaded network functions for one or more virtual machines. A memory access policy of the virtualized computing environment is applied to a direct memory access connection reply received from a second virtual machine on the exception path. The reply is flagged to indicate that the reply has been processed and the reply is forwarded to the network interface device. A direct memory access connection is established between first and second virtual machines in accordance with the request.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: November 10, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Alec Kochevar-Cureton, Somesh Chaturmohta, Norman C. Lam, Sambhrama Madhusudhan Mundkur, Daniel M. Firestone
  • Publication number: 20200265005
    Abstract: Distributed computing systems, devices, and associated methods of packet routing are disclosed herein. In one embodiment, a method includes receiving, from a computing network, a packet at a packet processor of a server. The method also includes matching the received packet with a flow in a flow table contained in the packet processor and determining whether the action indicates that the received packet is to be forwarded to a NIC buffer in the outbound processing path of the packet processor instead of the NIC. The method further includes in response to determining that the action indicates that the received packet is to be forwarded to the NIC buffer, forwarding the received packet to the NIC buffer and processing the packet in the NIC buffer to forward the packet to the computer network without exposing the packet to the main processor.
    Type: Application
    Filed: February 27, 2020
    Publication date: August 20, 2020
    Inventors: Sambhrama Mundkur, Fengfen Liu, Norman Lam, Andrew Putnam, Somesh Chaturmohta, Daniel Firestone, Alec Kochevar-Cureton
  • Publication number: 20200110626
    Abstract: Techniques are disclosed for implementing direct memory access in a virtualized computing environment. A memory access policy of the virtualized computing environment is applied to a direct memory access connection request received from a first virtual machine via an exception path. The request is flagged to indicate that the request has been processed and the request is forwarded to a network interface device configured to execute offloaded network functions for one or more virtual machines. A memory access policy of the virtualized computing environment is applied to a direct memory access connection reply received from a second virtual machine on the exception path. The reply is flagged to indicate that the reply has been processed and the reply is forwarded to the network interface device. A direct memory access connection is established between first and second virtual machines in accordance with the request.
    Type: Application
    Filed: October 8, 2018
    Publication date: April 9, 2020
    Inventors: Alec KOCHEVAR-CURETON, Somesh CHATURMOHTA, Norman C. LAM, Sambhrama Madhusudhan MUNDKUR, Daniel M. FIRESTONE
  • Patent number: 10437775
    Abstract: Distributed computing systems, devices, and associated methods of remote direct memory access (“RDMA”) packet routing are disclosed herein. In one embodiment, a server includes a main processor, a network interface card (“NIC”), and a field programmable gate array (“FPGA”) operatively coupled to the main processor via the NIC. The FPGA includes an inbound processing path having an inbound packet buffer configured to receive an inbound packet from the computer network, a NIC buffer, and a multiplexer between the inbound packet buffer and the NIC, and between the NIC buffer and the NIC. The FPGA also includes an outbound processing path having an outbound action circuit having an input to receive the outbound packet from the NIC, a first output to the computer network, and a second output to the NIC buffer in the inbound processing path.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: October 8, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Alec Kochevar-Cureton, Somesh Chaturmohta, Norman Lam, Sambhrama Mundkur, Daniel Firestone
  • Publication number: 20190079897
    Abstract: Distributed computing systems, devices, and associated methods of remote direct memory access (“RDMA”) packet routing are disclosed herein. In one embodiment, a server includes a main processor, a network interface card (“NIC”), and a field programmable gate array (“FPGA”) operatively coupled to the main processor via the NIC. The FPGA includes an inbound processing path having an inbound packet buffer configured to receive an inbound packet from the computer network, a NIC buffer, and a multiplexer between the inbound packet buffer and the NIC, and between the NIC buffer and the NIC. The FPGA also includes an outbound processing path having an outbound action circuit having an input to receive the outbound packet from the NIC, a first output to the computer network, and a second output to the NIC buffer in the inbound processing path.
    Type: Application
    Filed: November 28, 2017
    Publication date: March 14, 2019
    Inventors: Alec Kochevar-Cureton, Somesh Chaturmohta, Norman Lam, Sambhrama Mundkur, Daniel Firestone