公开(公告)号：US12222826B2

公开(公告)日：2025-02-11

申请号：US18104458

申请日：2023-02-01

Applicant: Arm Limited

Inventor： Ashok Kumar Tummala ,  FNU Parshant ,  Rishabh Jain ,  Apurva Patel ,  Surabhi Garg ,  Sai Kumar Marri

IPC: G06F11/07 ,  G06F11/20

Abstract: A mechanism for error containment in a data processing system includes receiving a transaction request at a gateway between a host and a device, allocating an entry for the request in a local request tracker of the gateway and sending a link request, to a port of the gateway. In response to an isolation trigger, the port is moved into isolation by completing in-process requests with entries in the tracker and locking the entries. On receiving a response to an in-process request while the port is in isolation, the response is dropped, the associated entry is unlocked, and allocation of the entry is enabled. A completion response is sent to the requester without dispatching a new link request to the port. When requests are completed, the system is quiesced, locked entries are unlocked, and the port is moved out of isolation.

公开(公告)号：US20240256406A1

公开(公告)日：2024-08-01

申请号：US18104458

申请日：2023-02-01

Applicant: Arm Limited

Inventor： Ashok Kumar Tummala ,  FNU Parshant ,  Rishabh Jain ,  Apurva Patel ,  Surabhi Garg ,  Sai Kumar Marri

IPC: G06F11/20

CPC classification number: G06F11/2007 ,  G06F11/203 ,  G06F2201/805

Abstract: A mechanism for error containment in a data processing system includes receiving a transaction request at a gateway between a host and a device, allocating an entry for the request in a local request tracker of the gateway and sending a link request, to a port of the gateway. In response to an isolation trigger, the port is moved into isolation by completing in-process requests with entries in the tracker and locking the entries. On receiving a response to an in-process request while the port is in isolation, the response is dropped, the associated entry is unlocked, and allocation of the entry is enabled. A completion response is sent to the requester without dispatching a new link request to the port. When requests are completed, the system is quiesced, locked entries are unlocked, and the port is moved out of isolation.