| Patent application number | Description | Published |
|---|
| 20080215772 | SYSTEM METHOD STRUCTURE IN NETWORK PROCESSOR THAT INDICATES LAST DATA BUFFER OF FRAME PACKET BY LAST FLAG BIT THAT IS EITHER IN FIRST OR SECOND POSITION - A method and structure for determining when a frame of information comprised of one or more buffers of data being transmitted in a network processor has completed transmission is provided. The network processor includes several control blocks, one for each data buffer, each containing control information linking one buffer to another. Each control block has a last bit feature which is a single bit settable to “one” or “zero” and indicates when the data buffer having the last bit is transmitted. The last bit is in a first position when an additional data buffer is to be chained to a previous data buffer indicating an additional data buffer is to be transmitted and a second position when no additional data buffer is to be chained to a previous data buffer. The position of the last bit is communicated to the network processor indicating the ending of a particular frame. | 09-04-2008 |
| 20080222116 | LONGEST PREFIX MATCH (LPM) ALGORITHM IMPLEMENTATION FOR A NETWORK PROCESSOR - Novel data structures, methods and apparatus for finding the longest prefix match search when searching tables with variable length patterns or prefixes. To find the exact match or the best matching prefix, patterns have to be compared a bit at a time until the exact or first match is found. This requires “n” number of comparisons or memory accesses to identify the closest matching pattern. The trees are built in such a way that the matching result is guaranteed to be a best match, whether it is an exact match or a longest prefix match. Using the trail of all the birds and associated prefix lengths enables determination of the correct prefix result from the trail. By construction, the search tree provides the best matching prefix at or after the first compare during walking of the trail or tree. | 09-11-2008 |
| 20080222324 | SYSTEM METHOD STRUCTURE IN NETWORK PROCESSOR THAT INDICATES LAST DATA BUFFER OF FRAME PACKET BY LAST FLAG BIT THAT IS EITHER IN FIRST OR SECOND POSITION - A method and structure for determining when a frame of information comprised of one or more buffers of data being transmitted in a network processor has completed transmission is provided. The network processor includes several control blocks, one for each data buffer, each containing control information linking one buffer to another. Each control block has a last bit feature which is a single bit settable to “one or “zero” and indicates the transmission of when the data buffer having the last bit. The last bit is in a first position when an additional data buffer is to be chained to a previous data buffer indicating an additional data buffer is to be transmitted and a second position when no additional data buffer is to be chained to a previous data buffer. The position of the last bit is communicated to the network processor indicating the ending of a particular frame. | 09-11-2008 |
