Re: [PATCH for-next V1 9/9] IB/cma: Join and leave multicast groups with IGMP

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On Tue, Nov 24, 2015 at 11:41:10AM +0200, Moni Shoua wrote:
> On Mon, Nov 23, 2015 at 11:25 PM, Jason Gunthorpe
> <jgunthorpe@xxxxxxxxxxxxxxxxxxxx> wrote:
> > On Thu, Oct 15, 2015 at 07:07:12PM +0300, Matan Barak wrote:
> >> diff --git a/include/rdma/ib_sa.h b/include/rdma/ib_sa.h
> >> index 0a40ed2..5bea0e8 100644
> >> +++ b/include/rdma/ib_sa.h
> >> @@ -206,6 +206,9 @@ struct ib_sa_mcmember_rec {
> >>       u8           scope;
> >>       u8           join_state;
> >>       int          proxy_join;
> >> +     int          ifindex;
> >> +     struct net  *net;
> >> +     enum ib_gid_type gid_type;
> >>  };
> >
> > This is really gross.
> >
> > Make ib_init_ah_from_mcmember accept a QP and get the above stuff from
> > the QP.
> >
> > Jason
> 
> Which QP is that. You might not have any existing QP when you want to
> create the AH or you might have 10.

roce multicast is only done with the CM and the CM always has a QP.

Jason
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