公开(公告)号：US11347597B2

公开(公告)日：2022-05-31

申请号：US17148793

申请日：2021-01-14

Applicant: Google LLC

Inventor： Prashant Chandra ,  Ian Mclaren ,  Jon Olson ,  Jacob Adriaens

IPC: G06F11/00 ,  G06F11/14 ,  G06F9/455 ,  G06F12/10

Abstract: Systems and methods of error handling in a network interface card (NIC) are provided. For a data packet destined for a local virtual machine (VM), if the NIC cannot determine a valid translation memory address for a virtual memory address in a buffer descriptor from a receive queue of the VM, the NIC can retrieve a backup buffer descriptor from a hypervisor queue, and store the packet in a host memory location indicated by an address in the backup buffer descriptor. For a transmission request from a local VM, if the NIC cannot determine a valid translated address for a virtual memory address in the packet descriptor from a transmit queue of the VM, the NIC can send a message to a hypervisor backup queue, and generate and transmit a data packet based on data in a memory page reallocated by the hypervisor.

公开(公告)号：US20210165717A1

公开(公告)日：2021-06-03

申请号：US17148793

申请日：2021-01-14

Applicant: Google LLC

Inventor： Prashant Chandra ,  Ian Mclaren ,  Jon Olson ,  Jacob Adriaens

IPC: G06F11/14 ,  G06F9/455 ,  G06F12/10

Abstract: Systems and methods of error handling in a network interface card (NIC) are provided. For a data packet destined for a local virtual machine (VM), if the NIC cannot determine a valid translation memory address for a virtual memory address in a buffer descriptor from a receive queue of the VM, the NIC can retrieve a backup buffer descriptor from a hypervisor queue, and store the packet in a host memory location indicated by an address in the backup buffer descriptor. For a transmission request from a local VM, if the NIC cannot determine a valid translated address for a virtual memory address in the packet descriptor from a transmit queue of the VM, the NIC can send a message to a hypervisor backup queue, and generate and transmit a data packet based on data in a memory page reallocated by the hypervisor.

公开(公告)号：US11650884B2

公开(公告)日：2023-05-16

申请号：US17740565

申请日：2022-05-10

Applicant: Google LLC

Inventor： Prashant R. Chandra ,  Ian Mclaren ,  Jon Olson ,  Jacob Adriaens

IPC: G06F11/00 ,  G06F11/14 ,  G06F9/455 ,  G06F12/10

CPC classification number: G06F11/1451 ,  G06F9/45558 ,  G06F12/10 ,  G06F2009/4557 ,  G06F2009/45583 ,  G06F2009/45595 ,  G06F2201/84 ,  G06F2212/657

Abstract: Systems and methods of error handling in a network interface card (NIC) are provided. For a data packet destined for a local virtual machine (VM), if the NIC cannot determine a valid translation memory address for a virtual memory address in a buffer descriptor from a receive queue of the VM, the NIC can retrieve a backup buffer descriptor from a hypervisor queue, and store the packet in a host memory location indicated by an address in the backup buffer descriptor. For a transmission request from a local VM, if the NIC cannot determine a valid translated address for a virtual memory address in the packet descriptor from a transmit queue of the VM, the NIC can send a message to a hypervisor backup queue, and generate and transmit a data packet based on data in a memory page reallocated by the hypervisor.

公开(公告)号：US20220269569A1

公开(公告)日：2022-08-25

申请号：US17740565

申请日：2022-05-10

Applicant: Google LLC

Inventor： Prashant R. Chandra ,  Ian Mclaren ,  Jon Olson ,  Jacob Adriaens

IPC: G06F11/14 ,  G06F9/455 ,  G06F12/10

Abstract: Systems and methods of error handling in a network interface card (NIC) are provided. For a data packet destined for a local virtual machine (VM), if the NIC cannot determine a valid translation memory address for a virtual memory address in a buffer descriptor from a receive queue of the VM, the NIC can retrieve a backup buffer descriptor from a hypervisor queue, and store the packet in a host memory location indicated by an address in the backup buffer descriptor. For a transmission request from a local VM, if the NIC cannot determine a valid translated address for a virtual memory address in the packet descriptor from a transmit queue of the VM, the NIC can send a message to a hypervisor backup queue, and generate and transmit a data packet based on data in a memory page reallocated by the hypervisor.

公开(公告)号：US10922185B2

公开(公告)日：2021-02-16

申请号：US16279462

申请日：2019-02-19

Applicant: Google LLC

Inventor： Prashant Chandra ,  Ian Mclaren ,  Jon Olson ,  Jacob Adriaens

IPC: G06F11/00 ,  G06F11/14 ,  G06F12/10 ,  G06F9/455

Abstract: Systems and methods of error handling in a network interface card (NIC) are provided. For a data packet destined for a local virtual machine (VM), if the NIC cannot determine a valid translation memory address for a virtual memory address in a buffer descriptor from a receive queue of the VM, the NIC can retrieve a backup buffer descriptor from a hypervisor queue, and store the packet in a host memory location indicated by an address in the backup buffer descriptor. For a transmission request from a local VM, if the NIC cannot determine a valid translated address for a virtual memory address in the packet descriptor from a transmit queue of the VM, the NIC can send a message to a hypervisor backup queue, and generate and transmit a data packet based on data in a memory page reallocated by the hypervisor.

公开(公告)号：US20210019230A1

公开(公告)日：2021-01-21

申请号：US16279462

申请日：2019-02-19

Applicant: Google LLC

Inventor： Prashant Chandra ,  Ian Mclaren ,  Jon Olson ,  Jacob Adriaens

IPC: G06F11/14 ,  G06F12/10 ,  G06F9/455

Abstract: Systems and methods of error handling in a network interface card (NIC) are provided. For a data packet destined for a local virtual machine (VM), if the NIC cannot determine a valid translation memory address for a virtual memory address in a buffer descriptor from a receive queue of the VM, the NIC can retrieve a backup buffer descriptor from a hypervisor queue, and store the packet in a host memory location indicated by an address in the backup buffer descriptor. For a transmission request from a local VM, if the NIC cannot determine a valid translated address for a virtual memory address in the packet descriptor from a transmit queue of the VM, the NIC can send a message to a hypervisor backup queue, and generate and transmit a data packet based on data in a memory page reallocated by the hypervisor.