公开(公告)号：US20220350536A1

公开(公告)日：2022-11-03

申请号：US17724286

申请日：2022-04-19

Applicant: MediaTek Inc.

Inventor： Chih-Chieh Chou ,  Chia-Chun Wang ,  Liang-Yen Wang ,  Szu-Chi Liu ,  Chin Chin Cheng

IPC: G06F3/06

Abstract: A host system coupled to a storage system provides hardware support for command abort. The host system includes a host controller, which detects that a host driver has disabled an enable indicator of a submission queue (SQ). In response to the detection, the host controller stops further fetching from the SQ. The host controller sends all entries that have been fetched from the SQ to the storage device, and sets a status indicator of the SQ to indicate stopped fetching of the SQ.

公开(公告)号：US20240192895A1

公开(公告)日：2024-06-13

申请号：US18584690

申请日：2024-02-22

Applicant: MediaTek Inc.

Inventor： Chih-Chieh Chou ,  Chia-Chun Wang ,  Liang-Yen Wang ,  Chin Chin Cheng ,  Szu-Chi Liu

IPC: G06F3/06

CPC classification number: G06F3/0659 ,  G06F3/0607 ,  G06F3/0658 ,  G06F3/0679

Abstract: A host system operates to manage a storage device. The host system initiates an abort of a command when the command has been fetched from a submission queue (SQ) of the host system and the SQ entry has been fetched from the SQ and the host system has not received a corresponding command completion response from the storage device. The host system sends an abort request to the storage device, and issues a cleanup request to direct a host controller to reclaim host hardware resources allocated to the command. The host system adds a completion queue (CQ) entry to a CQ and sets an overall command status (OCS) value of the CQ entry to indicate completion of the abort request.

公开(公告)号：US12086463B2

公开(公告)日：2024-09-10

申请号：US17724286

申请日：2022-04-19

Applicant: MediaTek Inc.

Inventor： Chih-Chieh Chou ,  Chia-Chun Wang ,  Liang-Yen Wang ,  Szu-Chi Liu ,  Chin Chin Cheng

IPC: G06F12/00 ,  G06F3/06

CPC classification number: G06F3/0659 ,  G06F3/0604 ,  G06F3/0634 ,  G06F3/0679

Abstract: A host system coupled to a storage system provides hardware support for command abort. The host system includes a host controller, which detects that a host driver has disabled an enable indicator of a submission queue (SQ). In response to the detection, the host controller stops further fetching from the SQ. The host controller sends all entries that have been fetched from the SQ to the storage device, and sets a status indicator of the SQ to indicate stopped fetching of the SQ.

公开(公告)号：US11941298B2

公开(公告)日：2024-03-26

申请号：US17724347

申请日：2022-04-19

Applicant: MediaTek Inc.

Inventor： Chih-Chieh Chou ,  Chia-Chun Wang ,  Liang-Yen Wang ,  Chin Chin Cheng ,  Szu-Chi Liu

IPC: G06F3/06

CPC classification number: G06F3/0659 ,  G06F3/0607 ,  G06F3/0658 ,  G06F3/0679

Abstract: A host system initiates an abort of a command that has been placed into a submission queue (SQ) of the host system. The host system identifies at least one of a first outcome and a second outcome. When the first outcome indicates that the command is not completed and the second outcome indicates that the SQ entry has been fetched from the SQ, the host system sends an abort request to a storage device, and issues a cleanup request to direct the host controller to reclaim host hardware resources allocated to the command. The host system adds a completion queue (CQ) entry to a CQ and sets an overall command status (OCS) value of the CQ entry based on at least one of the first outcome and the second outcome.

公开(公告)号：US12175134B2

公开(公告)日：2024-12-24

申请号：US18584690

申请日：2024-02-22

Applicant: MediaTek Inc.

Inventor： Chih-Chieh Chou ,  Chia-Chun Wang ,  Liang-Yen Wang ,  Chin Chin Cheng ,  Szu-Chi Liu

IPC: G06F3/06

Abstract: A host system operates to manage a storage device. The host system initiates an abort of a command when the command has been fetched from a submission queue (SQ) of the host system and the SQ entry has been fetched from the SQ and the host system has not received a corresponding command completion response from the storage device. The host system sends an abort request to the storage device, and issues a cleanup request to direct a host controller to reclaim host hardware resources allocated to the command. The host system adds a completion queue (CQ) entry to a CQ and sets an overall command status (OCS) value of the CQ entry to indicate completion of the abort request.

公开(公告)号：US20240045618A1

公开(公告)日：2024-02-08

申请号：US18323206

申请日：2023-05-24

Applicant: MediaTek Inc.

Inventor： Chin Chin Cheng ,  Chih-Chieh Chou ,  Tzu-Shiun Liu

IPC: G06F3/06

CPC classification number: G06F3/0659 ,  G06F3/0604 ,  G06F3/0679

Abstract: A host system is coupled to a storage device and manages completion queues (CQs) for the storage device. The host system includes a host controller and memory that stores submission queues (SQs) and the CQs. The host controller fetches a command from a given SQ that corresponds to a target CQ. The host controller saves the command in an SQ internal buffer of the host controller, calculates an available capacity (AC) associated with the given SQ for the host system to store a response to the command from the storage device, and sends the command to the storage device when the available capacity is non-zero. The available capacity is calculated based on, at least in part, available slots in the target CQ.