公开(公告)号：US20240264768A1

公开(公告)日：2024-08-08

申请号：US18640781

申请日：2024-04-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kun Tan ,  Shui Cao ,  Changchun Ouyang ,  Yusu Zhao

IPC: G06F3/06 ,  G06F12/06

CPC classification number: G06F3/0655 ,  G06F3/061 ,  G06F3/0673 ,  G06F12/06

Abstract: A first node obtains a corresponding physical address based on a first virtual address in a first request. The first request may be sent by an application in the first node, and is used to request to read data of a second node or request to write data to the second node. Then, the first node sends a second request corresponding to the first request to the second node based on a first mapping relationship. Because the bus address indicates a virtual address corresponding to an instance of the second node, when the virtual address may be accessed by the first node based on the first request, the virtual address may be accessed by the second node, or may be accessed by another node based on a request, to implement address sharing in data access.

公开(公告)号：US12117947B2

公开(公告)日：2024-10-15

申请号：US17205090

申请日：2021-03-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Changchun Ouyang ,  Shui Cao ,  Zihao Xiang

IPC: G06F13/28 ,  G06F3/06 ,  G06F9/4401 ,  G06F9/455 ,  G06F9/54

CPC classification number: G06F13/28 ,  G06F9/4411 ,  G06F9/45558 ,  G06F9/544 ,  G06F2009/4557 ,  G06F2009/45583 ,  G06F2213/0026

Abstract: The present disclosure relates to information processing methods, physical machines, and peripheral component interconnect express (PCIE) devices. In one example method, a PCIE device receives, in a live migration process of a to-be-migrated virtual machine (VM), a packet corresponding to the to-be-migrated VM, where the to-be-migrated VM is one of a plurality of VMs. The PCIE device determines a direct memory access (DMA) address based on the packet. The PCIE device sends the DMA address to a physical function (PF) driver.

公开(公告)号：US11616738B2

公开(公告)日：2023-03-28

申请号：US17087087

申请日：2020-11-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liang Wang ,  Xu Zhang ,  Shui Cao

IPC: H04L12/861 ,  H04L12/883 ,  H04L49/90 ,  G06F12/1081 ,  G06F13/16 ,  H04L49/552 ,  H04L49/9015 ,  H04L49/00

Abstract: A packet processing method and device are provided, to save CPU resources consumed by parsing a packet. The method includes: parsing, by an intelligent network interface card, a received first packet to obtain an identifier of the first packet; updating, by the intelligent network interface card, a control field of a first memory buffer based on the identifier of the first packet; storing, by the intelligent network interface card, a payload of the first packet or a packet header and a payload of the first packet into the first address space through DMA based on an aggregation position of the first packet; aggregating, by a host, the first address information and at least one piece of second address information based on an updated control field in the first mbuf; and reading, by a virtual machine, address information, to obtain data in an address space indicated by the address information.