[ofa-general] [PATCH] IB/IPoIB: Don't let a bad muticast address in the join list stop subsequent joins

[Moni Shoua]

> Wouldn't it make more sense to fix the bonding device or core networking
> (wherever the problem is) so that it recomputes the multicast list when
> the bonding hardware type changes?  After this patch, do we end up with
> an IPoIB interface that's not a member of the all hosts multicast group?
> (That seems like it would lead to confusing breakage later)
> 
>  - R.
You are right. The full fix to the example I brought needs to be higher in the stack.
I'll see how can I fix it there also.

But bonding is just an example (and I don't have any other yet). The fix in IPoIB 
prevents starvation of pending multicast addresses if one constantly fails to join.
Now, IPoIB assumes that if a join for one mcast group fails then all other joins would fail
or otherwise why not let groups a try? I think that this is a wrong assumption.