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:
Feb. 09, 2010
Filed:
May. 01, 2003
Kent Harold Haselhorst, Byron, MN (US);
Kerry Christopher Imming, Rochester, MN (US);
John David Irish, Rochester, MN (US);
Kent Harold Haselhorst, Byron, MN (US);
Kerry Christopher Imming, Rochester, MN (US);
John David Irish, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, apparatus and computer program product are provided for implementing virtual packet storage via packet work area (PWA) in a network processor system. A mapping area including a packet work area and a corresponding set of packet segment registers (PSRs) are provided. A PSR is loaded with a Packet ID (PID) and a packet translation unit maps the packet data into the corresponding PWA. The PWA address defining an offset into the packet is translated into a physical address. The packet translation unit redirects loads and stores of the PWA into the correct data buffer or buffers in system memory. Packets include one or more data buffers that are chained together, using a buffer descriptor providing the packet physical address. The buffer descriptor points to a data buffer for the packet and to a next buffer descriptor.