[openib-general] UC connection server

[Steven Wooding]

Hi,

I wonder if anybody could give some advice about an idea for making UC
connections with a device that doesn't support a CM (it's a
custom-made embedded device).

The idea is to use a PC-based stack that does use the standard CM
interface. I can then make a connection with that. The PC then gets
the info about the real QP from the embedded device via some
proprietary method.

The problem with this idea is that in the standard CM protocol, it
forms the connection using the LID that the REQ was sent to. But I
need to change this to the LID of the embedded device. I've looked at
doing path migration which looked like it might do this, but I could
do with some advice.

For example, in path migration, does the original connection remain?

Any other suggests are welcome (I know I could do an Ethernet
connection with the PC and exchange the info that way, but that's a
last resort at the moment).

Thanks for your time.

Cheers,

Steve.