公开(公告)号：US20240296131A1

公开(公告)日：2024-09-05

申请号：US18662097

申请日：2024-05-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangmuk HWANG ,  Jaegeun PARK ,  Hojun SHIM ,  Byungchul YOO

IPC: G06F13/16 ,  G06F13/28

CPC classification number: G06F13/1642 ,  G06F13/161 ,  G06F13/1689 ,  G06F13/28

Abstract: A storage controller includes a command manager and a direct memory access (DMA) engine. The command manager receives a first submission queue doorbell from an external device, fetches a first command including a first latency from the external device in response to the first submission queue doorbell, and determines a first timing to write a first completion into the external device based on the first latency, the first completion indicating that the first command is completely processed. The DMA engine receives a request signal requesting processing of the first command from the command manager, transfer data, which the first command requests, based on a DMA transfer in response to the request signal, and outputs a complete signal, which indicates that the first command is completely processed, to the command manager.

公开(公告)号：US20220283962A1

公开(公告)日：2022-09-08

申请号：US17751798

申请日：2022-05-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangmuk HWANG ,  Jaegeun Park ,  Hojun Shim ,  Byungchul Yoo

IPC: G06F13/16 ,  G06F13/28

Abstract: A storage controller includes a command manager and a direct memory access (DMA) engine. The command manager receives a first submission queue doorbell from an external device, fetches a first command including a first latency from the external device in response to the first submission queue doorbell, and determines a first timing to write a first completion into the external device based on the first latency, the first completion indicating that the first command is completely processed. The DMA engine receives a request signal requesting processing of the first command from the command manager, transfer data, which the first command requests, based on a DMA transfer in response to the request signal, and outputs a complete signal, which indicates that the first command is completely processed, to the command manager.