The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2025
Filed:
Mar. 17, 2023
Xilinx, Inc., San Jose, CA (US);
Chandrasekhar S. Thyamagondlu, Saratoga, CA (US);
Akhil Krishnan, San Jose, CA (US);
Darren Jue, Sunnyvale, CA (US);
Xilinx, Inc., San Jose, CA (US);
Abstract
Handling port resets in a multi-port system includes monitoring, using a plurality of firewall circuits, a plurality of controllers corresponding to different communication ports for a reset condition. The plurality of controllers are coupled to a direct memory access (DMA) system through a plurality of bridge circuits. A selected firewall circuit detects a reset condition on a selected controller coupled thereto. The selected controller is coupled to a selected bridge circuit of the plurality of bridge circuits. In response to detecting the reset condition, the selected firewall circuit implements a firewall operating mode. While operating in the firewall operating mode, the selected firewall circuit is configured to control operation of the selected bridge circuit thereby isolating the selected controller from the DMA system. Firewall operating mode of firewall circuits also may be initiated by a management processor in a proactive manner.