[ofw] HCA Description field format differences between Windows & Linux?

[Hefty, Sean]

> Ok, what does the code that detects the file change do to program the
> updated node description?

A structure representing the device in the kernel maintains a node_desc string.  This gets updated when the file is written to.  Whenever a MAD is receive, the HCA driver always gets a chance to examine and process the mad before it is handed up the stack.  In this case, the driver sets the node_desc in the response mad based on the node_desc string stored with the struct ib_device.

- Sean