Huawei Technologies Co., Limited

Zhaojiao Han

Xindong Luo

Can Chen

Jianbo Li

Xianjun He

Dahong Yan

Huichun Qu

Jianye Yao

Xuhui Li

Xiaopeng Liu

Qiming Xu

Bowei Yu

Jiyuan Chen

Fanlu Jiang

Xinteng Zhao

Jincheng Bao

Zhijian Liao

A network interface card, a message sending method, and a storage apparatus are provided. The network interface card includes a processor and a communication interface connected to the processor. The processor is configured to obtain a first piece of first indication information and a first piece of second indication information. The first piece of first indication information indicates a first identifier of a non-volatile storage medium corresponding to a first RDMA message, and the first piece of second indication information indicates whether the non-volatile storage medium corresponding to the first identifier is faulty. The communication interface is configured to send the first RDMA message when the first piece of first indication information and the first piece of second indication information indicate that the non-volatile storage medium corresponding to the first RDMA message is not faulty.

Network interface card, message sending method, and storage apparatus

In one example method, a client device sends a first packet to a first storage device, to request that target data can be written into the first storage device, where the first packet includes a logical address into which the target data needs to be written. A front-end network adapter of the first storage device has a capability of parsing the first packet, and can process the first packet. The front-end network adapter of the first storage device writes the target data into the first storage device based on an indication of the first packet. The front-end network adapter of the first storage device generates metadata, and records a correspondence between the logical address of the target data and the metadata, where the metadata can indicate a physical address at which the target data is stored in the first storage device.

Data access system and method, device, and network adapter

A network interface card, a controller, a storage apparatus, and a packet sending method are disclosed, and relate to the storage field to reduce a delay of an RDMA read operation. The network interface card includes: a processing module, configured to: in response to a doorbell signal of a controller, obtain a work queue element (WQE) from a send queue (SQ) corresponding to the controller, where the doorbell signal indicates that there is a to-be-sent message in a storage space to which at least one WQE points in the SQ, the WQE includes indication information, and the indication information indicates a type of a first remote direct memory access (RDMA) packet scheduled by the WQE.

Network interface card, controller, storage apparatus, and packet sending method

The technology of this application relates to a network interface card. The network interface card includes a parser and at least one shared connector. The parser receives a first SEND message that is from a host client and that corresponds to a first QP connection, and distributes the first SEND message to a first shared connector in the at least one shared connector. The first SEND message includes an RDMA operation command. The first shared connector obtains NVME information that is sent to a first controller and that corresponds to the first QP connection. The first shared connector interacts with a second controller when a disconnection event of a link between the first shared connector and the first controller is detected. The first shared connector obtains a WQE from the second controller. The first shared connector sends a first RDMA message corresponding to the first QP connection to the host client based on the WQE.

Network interface card, message sending and receiving method, and storage apparatus

This application discloses a network interface card so as to improve reliability of a storage apparatus using an RDMA network and improve storage access performance of a single QP connection. A network interface card includes a parser and at least one shared connector, where the parser is configured to distribute a received first remote direct memory access RDMA packet to a first shared connector in the at least one shared connector; and the first shared connector is configured to establish a QP connection to a peer network device, and determine a first queue pair QP corresponding to a first controller based on the first RDMA packet, so as to implement communication with the first controller, where the first shared connector is separately connected to a plurality of controllers including the first controller, and one QP corresponding to each of the plurality of controllers corresponds to the first shared connector.

Network interface card, storage apparatus, and packet receiving method and sending method

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Shenzhen, China

Zhaojiao Han