System and method for mapping functions to and from network devices using configuration compatible with an adapter by remapping plurality of logical ports of adapter
View Patent ↗An adapter having a plurality of functions and a plurality of ports, in which the mapping between functions and ports is configurable. In certain embodiments, device memory can be programmed with a desired mapping scheme that overrides a default mapping scheme for the adapter. In certain embodiments, device memory can be reprogrammed with a different desired mapping to enable the adapter to dynamically respond to system conditions.
1. A multi-function adapter having configurable mapping of functions to ports, comprising:
a plurality of functions including control/status registers and user-defined logic associated with the registers, the functions being configured to facilitate communication between a host system and the adapter;
a plurality of physical ports configured to send and receive network information;
a plurality of logical ports configured to send and receive network information via the physical ports;
routing logic configured to map each function to one of the logical ports; and
programmable memory programmed with a mapping scheme that maps the functions to the logical ports;
wherein the mapping scheme is configurable according to a program stored in the programmable memory so that the functions can be mapped to the logical ports in a desired configuration so that the adapter is compatible with other network devices.
2. The adapter of claim 1 , further comprising programmable registers for storing the mapping scheme and passing the mapping scheme to the routing logic.
3. The adapter of claim 1 , wherein the functions are physical functions, and further comprising a plurality of virtual functions associated with at least one of the physical functions.
4. The adapter of claim 3 , wherein according to the mapping scheme each virtual function is mapped to the same logical port as the physical function with which it is associated.
5. A multi-function adapter having reconfigurable mapping of functions to ports, comprising:
a plurality of functions including control/status registers and user-defined logic associated with the registers, the functions being configured to facilitate communication between a host system and the adapter;
a plurality of physical ports configured to send and receive network information;
a plurality of logical ports configured to send and receive network information via the physical ports; and
routing logic configured to map each function to one of the logical ports;
wherein the mapping between the functions and the logical ports is reconfigurable so that at least a first one of the functions can be initially mapped to a first one of the logical ports and later reconfigured to be mapped to a second one of the logical ports.
6. The adapter of claim 5 , further comprising programmable registers for storing the mapping scheme and passing the mapping scheme to the routing logic.
7. The adapter of claim 5 , wherein the functions are physical functions, and further comprising a plurality of virtual functions associated with at least one of the physical functions.
8. The adapter of claim 7 , wherein according to the mapping scheme each virtual function is mapped to the same logical port as the physical function with which it is associated.