公开(公告)号：US10657095B2

公开(公告)日：2020-05-19

申请号：US15704278

申请日：2017-09-14

Applicant: VMware, Inc.

Inventor： Abhishek Srivastava ,  Bryan Tan ,  Aditya Sarwade

IPC: G06F15/173 ,  G06F9/455 ,  G06F15/167 ,  G06F9/54

Abstract: Described herein are systems, methods, and software to enhance virtualization connection management for virtual remote direct memory access (RDMA) devices. In one implementation, virtual machines may register with a hypervisor for the virtual machines, wherein the registration for each virtual machine includes at least one address for the virtual machine. Once registered, the hypervisor may identify a packet placed in a queue pair from a physical RDMA interface and determine whether a destination address in the packet corresponds to a virtual machine. If the destination address corresponds to a virtual machine, then the hypervisor may provide a callback to the virtual machine, wherein the callback provides access to the packet in the virtual machine as if the packet received at a virtual RDMA interface of the virtual machine.

公开(公告)号：US10417174B2

公开(公告)日：2019-09-17

申请号：US15192168

申请日：2016-06-24

Applicant: VMware, Inc.

Inventor： Adit Ranadive ,  Aditya Sarwade ,  Andy King ,  Jorgen Hansen ,  Bhavesh Davda ,  George Zhang ,  Xiaoyun Gong

IPC: G06F15/173 ,  G06F9/455 ,  G06F9/54

Abstract: A method of managing remote direct memory access (RDMA) to a virtual computing instance includes suspending locally initiated RDMA operations of the virtual computing instance executing on a first host prior to a migration of the virtual computing instance to a second host. The first host includes a first hypervisor and the second host includes a second hypervisor. The method further includes requesting a peer to suspend remotely initiated RDMA operations that target the virtual computing instance through a first channel, establishing after the migration, a second channel between the peer and the second hypervisor that supports execution of the virtual computing instance on the second host, configuring a virtual object of the second hypervisor on the second host to use the second channel for the locally initiated RDMA operations, and requesting the peer to resume the remotely initiated RDMA operations using the second channel.

公开(公告)号：US20190079896A1

公开(公告)日：2019-03-14

申请号：US15704278

申请日：2017-09-14

Applicant: VMware, Inc.

Inventor： Abhishek Srivastava ,  Bryan Tan ,  Aditya Sarwade

IPC: G06F15/173 ,  G06F9/455 ,  G06F15/167

Abstract: Described herein are systems, methods, and software to enhance virtualization connection management for virtual remote direct memory access (RDMA) devices. In one implementation, virtual machines may register with a hypervisor for the virtual machines, wherein the registration for each virtual machine includes at least one address for the virtual machine. Once registered, the hypervisor may identify a packet placed in a queue pair from a physical RDMA interface and determine whether a destination address in the packet corresponds to a virtual machine. If the destination address corresponds to a virtual machine, then the hypervisor may provide a callback to the virtual machine, wherein the callback provides access to the packet in the virtual machine as if the packet received at a virtual RDMA interface of the virtual machine.