[ofiwg] libfabric fi_getinfo question

Weiny, Ira ira.weiny at intel.com
Thu Jul 16 22:32:09 PDT 2015

> 2015-07-17 0:11 GMT+03:00 Ilango, Arun <arun.ilango at intel.com>:
> > The verbs provider uses rdma_cm internally for setup and establishing
> connections. I believe rdma_cm needs IPoIB to be functional to resolve
> hostnames to IB addresses.
> >
> > Does your setup not have IPoIB?
> Yes, i don't have ipoib and i think that it does not needed, but as i see nobody
> use rdma without ipoib. As i see i can operate by node gid or scan full subnet
> and iterate on each node, in this case i can write hostname to node_desc and
> while scanning subnet - check node_desc with needed name, if it matches -
> return gid, lid and other needed params to establish connection.
> ibnetdiscover have this feature , but have many code around, so extract needed
> parts not very simple.

Setting up IPoIB is the easiest way to go.  Is there a reason you can't set up IPoIB?


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