[Users] Fully connected topology support

[Alexandre Malotchko]

Hello,

We have tried to create fully connected topology using 4/5 nodes each with
2 dual ports HCAs. In the case of 4 nodes, this is 6 separate subnets with
6 SM instances.

It seems that on Linux (Ubuntu 16.04), none of the tools that do LID
resolution work and in some instances -if SM host node and remote node both
on mlx4_1 (second) device IPoIB does not come on.

On windows 2012, also configuring separate subnets etc, results on the
network being briefly up but then logs fills with errors and IPoIB is
killed.

Before we look into this more closely - does OpenSM support multiple HCA /
multiple ports configuration and their permutations ?

Thank you in advance, AM
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