公开(公告)号：US11797333B2

公开(公告)日：2023-10-24

申请号：US16710556

申请日：2019-12-11

申请人： Intel Corporation

发明人： Linden Cornett ,  Anil Vasudevan ,  Parthasarathy Sarangam ,  Kiran Patil

IPC分类号： G06F9/46 ,  G06F9/48 ,  G06F9/50

CPC分类号： G06F9/4812 ,  G06F9/5077 ,  G06F2209/5011

摘要： 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

申请人： Intel Corporation

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

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

摘要： 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：US11556437B2

公开(公告)日：2023-01-17

申请号：US16211950

申请日：2018-12-06

申请人： Intel Corporation

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

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

摘要： 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

申请人： Intel Corporation

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

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

摘要： 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

申请人： INTEL CORPORATION

发明人： Anil Vasudevan ,  Dave B. Minturn ,  Kiran Patil

IPC分类号： G06F3/06

摘要： 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：US11513924B2

公开(公告)日：2022-11-29

申请号：US16211934

申请日：2018-12-06

申请人： Intel Corporation

发明人： 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分类号： G06F9/455 ,  G06F11/20 ,  G06F3/06 ,  G06F13/16 ,  G06F13/42 ,  G06F13/40 ,  G06F15/173 ,  G06F9/48

摘要： 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

申请人： Intel Corporation

发明人： 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分类号： G06F11/20 ,  G06F3/06 ,  G06F9/455 ,  G06F9/48 ,  G06F13/16 ,  G06F13/40 ,  G06F13/42 ,  G06F15/173

CPC分类号： 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

摘要： 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

申请人： Intel Corporation

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

摘要： 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.

公开(公告)号：US20190391940A1

公开(公告)日：2019-12-26

申请号：US16457110

申请日：2019-06-28

申请人： Intel Corporation

发明人： Anil Vasudevan ,  Sridhar Samudrala ,  Parthasarathy Sarangam ,  Kiran Patil

IPC分类号： G06F13/24 ,  G06F9/48 ,  G06F9/4401 ,  G06F3/06

摘要： Technologies for interrupt disassociated queuing for multi-queue input/output devices includes determining whether a network packet has arrived in an interrupt-disassociated queue and delivering the network packet to an application managed by the compute node. The application is associated with an application thread and the interrupt-disassociated queue may be in a polling mode. Subsequently, in response to a transition event, the interrupt-disassociated queue may be transitioned to an interrupt mode.

公开(公告)号：US10353631B2

公开(公告)日：2019-07-16

申请号：US13948715

申请日：2013-07-23

申请人： Intel Corporation

发明人： Anil Vasudevan ,  Dave B. Minturn ,  Kiran Patil

IPC分类号： G06F15/167 ,  G06F3/06

摘要： 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.