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公开(公告)号：US20200042425A1
公开(公告)日：2020-02-06
申请号：US16653326
申请日：2019-10-15
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Bin Zhang , Ligang Chen , Jiahuai Chen , Lixia Xu
Abstract: A packet backpressure detection method and apparatus are provided. The method includes: a device which having a Peripheral Component Interconnect Express (PCIe) port storing a plurality of packets for transmission in a packet queue and storing a packet that is to be transmitted next in a first buffer, where the queue comprises a plurality of packets that are to be transmitted via the PCIe port; and the queue is stored in a second buffer; recording a storage duration of each packet stored in the first buffer, and accumulating the storage duration of each packet stored in the first buffer; removing the packet from the first buffer after the packet is transmitted via the PCIe port; and generating an indication of packet pressure at the PCIe port based on the accumulated storage duration.
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Patent Agency Ranking
公开(公告)号：US10656874B2
公开(公告)日：2020-05-19
申请号：US15965132
申请日：2018-04-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xin Qiu , Dengben Wu , Ligang Chen
Abstract: The present application relates to a storage device operation control method, a storage device, and a management node. The method includes: receiving at least one request sent by at least one management node; and when one of the at least one request is a permission application request, determining, according to a current permission status, whether to assign operation permission to a management node that sends the permission application request; or when one of the at least one request is an operation request, determining, according to a current permission status, whether a management node that sends the operation request has operation permission, and performing an operation according to the operation request when the management node that sends the operation request has the operation permission. This avoids a conflict caused by simultaneously performing an operation on a storage device by multiple management nodes, and prevents successive serial operations from being interrupted.
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公开(公告)号：US10599549B2
公开(公告)日：2020-03-24
申请号：US16250168
申请日：2019-01-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin Zhang , Ligang Chen , Jiahuai Chen , Lixia Xu
Abstract: A packet backpressure detection method and apparatus are provided. The method includes: a device which having a Peripheral Component Interconnect Express (PCIe) port storing a plurality of packets for transmission in a packet queue and storing a packet that is to be transmitted next in a first buffer, where the queue comprises a plurality of packets that are to be transmitted via the PCIe port; and the queue is stored in a second buffer; recording a storage duration of each packet stored in the first buffer, and accumulating the storage duration of each packet stored in the first buffer; removing the packet from the first buffer after the packet is transmitted via the PCIe port; and generating an indication of packet pressure at the PCIe port based on the accumulated storage duration.
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公开(公告)号：US20190037043A1
公开(公告)日：2019-01-31
申请号：US16133179
申请日：2018-09-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaoxin Xu , Ligang Chen , Yixiang Liao
IPC: H04L29/08 , G06F9/4401 , G06F9/455
Abstract: A data prefetching method and a prefetching apparatus to improve system service performance, where the data prefetching method includes a first prefetching apparatus receives a data prefetching instruction from a first host. The first prefetching apparatus determines a target data block based on the data prefetching instruction, and obtains identification of a target prefetching apparatus from a second prefetching apparatus. Then the first prefetching apparatus determines a target storage location of the target data block based on the identification, and obtains the target data block based on the target storage location.
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公开(公告)号：US11550694B2
公开(公告)日：2023-01-10
申请号：US16653326
申请日：2019-10-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin Zhang , Ligang Chen , Jiahuai Chen , Lixia Xu
Abstract: A packet backpressure detection method and apparatus are provided. The method includes: a device which having a Peripheral Component Interconnect Express (PCIe) port storing a plurality of packets for transmission in a packet queue and storing a packet that is to be transmitted next in a first buffer, where the queue comprises a plurality of packets that are to be transmitted via the PCIe port; and the queue is stored in a second buffer; recording a storage duration of each packet stored in the first buffer, and accumulating the storage duration of each packet stored in the first buffer; removing the packet from the first buffer after the packet is transmitted via the PCIe port; and generating an indication of packet pressure at the PCIe port based on the accumulated storage duration.
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公开(公告)号：US20190146895A1
公开(公告)日：2019-05-16
申请号：US16250168
申请日：2019-01-17
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Bin Zhang , Ligang Chen , Jiahuai Chen , Lixia Xu
CPC classification number: G06F11/3485 , G06F11/3041 , G06F13/20 , G06F13/4022 , G06F13/4269 , G06F13/4282 , G06F2213/0026 , H04L49/90
Abstract: A packet backpressure detection method and apparatus are provided. The method includes: a device which having a Peripheral Component Interconnect Express (PCIe) port storing a plurality of packets for transmission in a packet queue and storing a packet that is to be transmitted next in a first buffer, where the queue comprises a plurality of packets that are to be transmitted via the PCIe port; and the queue is stored in a second buffer; recording a storage duration of each packet stored in the first buffer, and accumulating the storage duration of each packet stored in the first buffer; removing the packet from the first buffer after the packet is transmitted via the PCIe port; and generating an indication of packet pressure at the PCIe port based on the accumulated storage duration.
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