Concurrent linked-list traversal for real-time hash processing in multi-core, multi-thread network processors
US8515965B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2012 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Feb 23, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/506
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Described embodiments process hash operation requests of a network processor. A hash processor determines a job identifier, a corresponding hash table, and a setting of a traversal indicator for a received hash operation request that includes a desired key. The hash processor concurrently generates a read request for a first bucket of the hash table, and provides the job identifier, the key and the traversal indicator to a read return processor. The read return processor stores the key and traversal indicator in a job memory and stores, in a return memory, entries of the first bucket of the hash table. If a stored entry matches the desired key, the read return processor determines, based on the traversal indicator, whether to read a next bucket of the hash table and provides the job identifier, the matching key, and the address of the bucket containing the matching key to the hash processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.