Method and system for the simplification of leaf-limited bridges
AssigneesSony Corporation, Sony Electronics Inc.
InventorsDavid V. James, Jose Diaz, Hisato Shima, Glen Stone
Life of this patent
Estimating the term…
Abstract
A method of address management in a net having a plurality of buses linked by a plurality of bus bridges where the net has only one branch bus with multiple bus bridges. A local identification address is assigned to each node on a branch bus and a bus number is assigned to each bus other than the branch bus. The bus number includes a common base and the local identification address for the node having a portal that connects to that bus.
Claims15
A method of address management in a net comprising a plurality of buses linked by a plurality of bus bridges, the net having only one branch bus with multiple bus bridges, the method comprising:
- assigning a local identification address to each node on a branch bus;
- and
- assigning a bus number to each bus other than the branch bus wherein the bus number includes a common base and the local identification address for the node having a portal that connects to that bus.
A bus bridge in a net comprising a plurality of buses linked by a plurality of bus bridges, the net having only one branch bus with multiple bus bridges, the bus bridge comprising:
- a local address space including local node identification addresses for nodes on the branch bus;
- a bus identification address space including bus identification addresses for each leaf bus in the bus system wherein the bus identification addresses are stored as a combination of a predefined base and the local node identification address for the bus bridge connected to the leaf bus.
A method of address routing in a first-type portal of a net comprising a plurality of buses linked by a plurality of bus bridges, the net having only one branch bus with multiple bus bridges and at least one leaf bus having only one bus bridge, the method comprising:
- accepting first-type packets that have a destination identification address including a bus identification address that is the bus identification address of the bus and a local identification address that is the local identification address of a node on the bus;
- accepting second-type packets that have a destination identification address including a bus identification address not equal to the bus identification address of the bus;
- and
- forwarding the second-type packets.
A memory for storing data for access by an application program being executed on a data processing system, comprising:
- a data structure stored in said memory, said data structure including information resident in a database used by said application program and including:
- a local node identification address for a bus bridge portal;
- and
- a bus identification address for a bus having only one bus bridge portal, the bus identification address including a function of the local node identification address for the bus bridge portal.
Dependencies are inferred from the claim text.