公开(公告)号：US11556437B2

公开(公告)日：2023-01-17

申请号：US16211950

申请日：2018-12-06

Applicant: Intel Corporation

Inventor： Mitu Aggarwal ,  Nrupal Jani ,  Manasi Deval ,  Kiran Patil ,  Parthasarathy Sarangam ,  Rajesh M. Sankaran ,  Sanjay K. Kumar ,  Utkarsh Y. Kakaiya ,  Philip Lantz ,  Kun Tian

IPC: G06F9/455 ,  G06F9/46 ,  G06F11/20 ,  G06F3/06 ,  G06F13/16 ,  G06F13/42 ,  G06F13/40 ,  G06F15/173 ,  G06F9/48

Abstract: Examples include a method of live migrating a virtual device by creating a virtual device in a virtual machine, creating first and second interfaces for the virtual device, transferring data over the first interface, detecting a disconnection of the virtual device from the virtual machine, switching data transfers for the virtual device from the first interface to the second interface, detecting a reconnection of the virtual device to the virtual machine, and switching data transfers for the virtual device from the second interface to the first interface.

公开(公告)号：US11474916B2

公开(公告)日：2022-10-18

申请号：US16211955

申请日：2018-12-06

Applicant: Intel Corporation

Inventor： Mitu Aggarwal ,  Nrupal Jani ,  Manasi Deval ,  Kiran Patil ,  Parthasarathy Sarangam ,  Rajesh M. Sankaran ,  Sanjay K. Kumar ,  Utkarsh Y. Kakaiya ,  Philip Lantz ,  Kun Tian

IPC: G06F11/00 ,  G06F11/20 ,  G06F3/06 ,  G06F13/16 ,  G06F13/42 ,  G06F13/40 ,  G06F15/173 ,  G06F9/455 ,  G06F9/48

Abstract: Examples include a method of performing failover of in an I/O architecture by allocating a first set of resources, associated with a first port of a physical device, to a virtual device, allocating a second set of resources, associated with a second port of the physical device, to the virtual device, assigning the virtual device to a virtual machine, activating the first set of resources, and transferring data between the virtual machine and the first port using the virtual device and the first set of resources. The method further includes detecting an error in the first set of resources, deactivating the first set of resources and activating the second set of resources, and transferring data between the virtual machine and the second port using the virtual device and the second set of resources.

公开(公告)号：US20190272124A1

公开(公告)日：2019-09-05

申请号：US16418405

申请日：2019-05-21

Applicant: INTEL CORPORATION

Inventor： Anil Vasudevan ,  Dave B. Minturn ,  Kiran Patil

IPC: G06F3/06

Abstract: Examples are disclosed for moving data between a network input/output (I/O) device and a storage subsystem and/or storage device. In some examples, a network I/O device coupled to a host device may receive a data frame including a request to access a storage subsystem or storage device. The storage subsystem and/or storage device may be located with the network I/O device or separately coupled to the host device through a storage controller. One or more buffers maintained in a cache for processor circuitry may be used to exchange control information or stage data associated with the data frame to avoid or eliminate use of system memory to move data to or from the storage subsystem and/or storage device. Other examples are described and claimed.

公开(公告)号：US12231339B2

公开(公告)日：2025-02-18

申请号：US17093394

申请日：2020-11-09

Applicant: Intel Corporation

Inventor： Namrata Limaye ,  Venkata Suresh Kumar Paruchuri ,  Sridhar Samudrala ,  Kiran Patil

IPC: H04L47/125 ,  H04L47/11 ,  H04L47/22 ,  H04L47/2441

Abstract: Methods and apparatus for extending OpenvSwitch (OVS) megaflow offloads to hardware to address hardware pipeline limitations. Under a method implemented on a compute platform including a Network Interface Controller (NIC) having one or more ports and running software including OVS software and a Linux operating system having a kernel including a TC-flower module and a NIC driver a new megaflow is created with a mask in the OVS software employing a subset of microflow fields for a packet. The microflow fields and the megaflow mask is sent to the NIC driver. A new megaflow is implemented in the NIC driver employing a subset of the microflow fields and the NIC driver creates a new hardware flow on the NIC employing a packet match scheme using all the microflow fields. The NIC also programs a NIC hardware pipeline with the new hardware flow using a match scheme that may depend on the available hardware resources, such as the size of a TCAM.

公开(公告)号：US12153962B2

公开(公告)日：2024-11-26

申请号：US16849915

申请日：2020-04-15

Applicant: Intel Corporation

Inventor： Ziye Yang ,  James R. Harris ,  Kiran Patil ,  Benjamin Walker ,  Sudheer Mogilappagari ,  Yadong Li ,  Mark Wunderlich ,  Anil Vasudevan

IPC: G06F9/50 ,  G06F9/46 ,  G06F9/54 ,  G06F13/22 ,  H04L67/1097 ,  H04L69/16

Abstract: The disclosure concerns at least one processor that can execute a polling group to poll for storage transactions associated with a first group of one or more particular queue identifiers. The disclosure concerns at least one processor is configured to: execute a second polling group on a second processor, wherein the second polling group is to poll for storage transactions for a second group of one or more particular queue identifiers that are different than the one or more particular queue identifiers of the first group, wherein the second group of one or more particular queue identifiers are associated with one or more queues that can be accessed using the second polling group and not the first polling group.

公开(公告)号：US11797333B2

公开(公告)日：2023-10-24

申请号：US16710556

申请日：2019-12-11

Applicant: Intel Corporation

Inventor： Linden Cornett ,  Anil Vasudevan ,  Parthasarathy Sarangam ,  Kiran Patil

IPC: G06F9/46 ,  G06F9/48 ,  G06F9/50

CPC classification number: G06F9/4812 ,  G06F9/5077 ,  G06F2209/5011

Abstract: Methods for performing efficient receive interrupt signaling and associated apparatus, computing platform, software, and firmware. Receive (RX) queues in which descriptors associated with packets are enqueued are implemented in host memory and logically partitioned into pools, with each RX queue pool associated with a respective interrupt vector. Receive event queues (REQs) associated with respective RX queue pools and interrupt vectors are also implemented in host memory. Event generation is selectively enabled for some RX queues, while event generation is masked for others. In response to event causes for RX queues that are event generation-enabled, associated events are generated and enqueued in the REQs and interrupts on associated interrupt vectors are asserted. The events are serviced by accessing the events in the REQs, which identify the RX queue for the event and a next activity location at which a next descriptor to be processed is located. After asserting an interrupt, an RX queue may be auto-masked to prevent generation of additional events when new descriptors are enqueued in the RX queue.

公开(公告)号：US11556436B2

公开(公告)日：2023-01-17

申请号：US16211930

申请日：2018-12-06

Applicant: Intel Corporation

Inventor： Manasi Deval ,  Nrupal Jani ,  Parthasarathy Sarangam ,  Mitu Aggarwal ,  Kiran Patil ,  Rajesh M. Sankaran ,  Sanjay K. Kumar ,  Utkarsh Y. Kakaiya ,  Philip Lantz ,  Kun Tian

IPC: G06F11/20 ,  G06F3/06 ,  G06F13/16 ,  G06F13/42 ,  G06F13/40 ,  G06F15/173 ,  G06F9/455 ,  G06F9/48

Abstract: Examples may include a method of protecting memory and I/O transactions. The method includes allocating memory for an application, assigning a resource of a physical device to the application, assigning a process address space identifier to the assigned resource, creating a security enclave to protect the allocated memory of the application, and associating the security enclave with the process address space identifier to protect the allocated memory and the assigned resource.

公开(公告)号：US11513924B2

公开(公告)日：2022-11-29

申请号：US16211934

申请日：2018-12-06

Applicant: Intel Corporation

Inventor： Nrupal Jani ,  Manasi Deval ,  Anjali Singhai Jain ,  Parthasarathy Sarangam ,  Mitu Aggarwal ,  Neerav Parikh ,  Alexander H. Duyck ,  Kiran Patil ,  Rajesh M. Sankaran ,  Sanjay K. Kumar ,  Utkarsh Y. Kakaiya ,  Philip Lantz ,  Kun Tian

IPC: G06F9/455 ,  G06F11/20 ,  G06F3/06 ,  G06F13/16 ,  G06F13/42 ,  G06F13/40 ,  G06F15/173 ,  G06F9/48

Abstract: Examples may include a method of instantiating a virtual machine; instantiating a virtual device to transmit data to and receive data from assigned resources of a shared physical device by receiving input data requesting assigned resources for the virtual device, allocating assigned resources to the virtual device based at least in part on the input data, and mapping a page location in an address space of the shared physical device for a selected one of the assigned resources to a page location in a memory-mapped input/output (MMIO) space of the virtual device; and assigning the virtual device to the virtual machine, the virtual machine to transmit data to and receive data from the physical device via the MMIO space of the virtual device.

公开(公告)号：US12117910B2

公开(公告)日：2024-10-15

申请号：US17868596

申请日：2022-07-19

Applicant: Intel Corporation

Inventor： Nrupal Jani ,  Manasi Deval ,  Anjali Singhai Jain ,  Parthasarathy Sarangam ,  Mitu Aggarwal ,  Neerav Parikh ,  Alexander H. Duyck ,  Kiran Patil ,  Rajesh M. Sankaran ,  Sanjay K. Kumar ,  Utkarsh Y. Kakaiya ,  Philip Lantz ,  Kun Tian

IPC: G06F11/20 ,  G06F3/06 ,  G06F9/455 ,  G06F9/48 ,  G06F13/16 ,  G06F13/40 ,  G06F13/42 ,  G06F15/173

CPC classification number: G06F11/2023 ,  G06F3/0622 ,  G06F3/0631 ,  G06F3/0659 ,  G06F3/0673 ,  G06F9/45558 ,  G06F9/4856 ,  G06F11/2007 ,  G06F13/1668 ,  G06F13/4068 ,  G06F13/4221 ,  G06F13/4282 ,  G06F15/17331 ,  G06F2009/45562 ,  G06F2009/4557 ,  G06F2009/45579 ,  G06F2009/45583 ,  G06F2009/45595 ,  G06F2201/805 ,  G06F2201/815 ,  G06F2213/0026

Abstract: Examples may include a method of instantiating a virtual machine, instantiating a virtual device to transmit data to and receive data from assigned resources of a shared physical device; and assigning the virtual device to the virtual machine, the virtual machine to transmit data to and receive data from the physical device via the virtual device.

公开(公告)号：US11573870B2

公开(公告)日：2023-02-07

申请号：US16211924

申请日：2018-12-06

Applicant: Intel Corporation

Inventor： Manasi Deval ,  Nrupal Jani ,  Anjali Singhai Jain ,  Parthasarathy Sarangam ,  Mitu Aggarwal ,  Neerav Parikh ,  Kiran Patil ,  Rajesh M. Sankaran ,  Sanjay K. Kumar ,  Utkarsh Y. Kakaiya ,  Philip Lantz ,  Kun Tian

IPC: G06F11/20 ,  G06F9/455 ,  G06F13/42 ,  G06F9/48 ,  G06F13/40 ,  G06F15/173 ,  G06F3/06 ,  G06F13/16 ,  G06F9/50 ,  G06F21/60 ,  G06F9/54

Abstract: Examples may include a computing platform having a host driver to get a packet descriptor of a received packet stored in a receive queue and to modify the packet descriptor from a first format to a second format. The computing platform also includes a guest virtual machine including a guest driver coupled to the host driver, the guest driver to receive the modified packet descriptor and to read a packet buffer stored in the receive queue using the modified packet descriptor, the packet buffer corresponding to the packet descriptor.