[ofa-general] Re: [PATCH 1/3] mcast loopback block

[Roland Dreier]

 > For IPoIB a hint might be enough, since the code to handle such packets is
 > there anyway and what this code does is simply to drop them. For other
 > applications, I think that their design might rely deeper on whether this
 > functionality is provided by their QP or not.

MCG attach verb could return whether the "block" succeeded or not.  But
that might be awkward for the app to handle.

Do we have any idea on anyone other than IPoIB who wants this feature?