[openib-general] IB mcast question

[Sean Hefty]

>> A potential fix I see for this is to use the same qkey for all UD QPs and
>> multicast groups created by the RDMA CM.  Otherwise we restrict UD QPs to
>using
>> a single destination (remote UD QP or multicast group.)
>
>Doesn't the QKey need to be the same as the one used for the IPoIB
>broadcast group (for the partition in question) per IPoIB RFC ? It
>should also be the one returned in the SA MCMemberRecord response.

It shouldn't.  The RDMA CM multicast groups are separate from those used by
ipoib.

- Sean