[ofiwg] raw Ethernet support

[Hefty, Sean]

Christoph,

In the last meeting, you mentioned adding an Ethernet protocol option.  That's easy enough to add, but can you provide some lower-level details on what you're looking for (or confirm the items below)?

Would an app use MAC addresses directly?  (Add an FI_MAC fi_addr_format.)

Would input buffers into data transfer operations be the Ethernet frame data?  (I.e. the input buffers would NOT include the MAC header.)

Can you think of any other changes that would be needed to fully support data transfers over a raw Ethernet endpoint?

- Sean