On Mon, 21 Apr 2014, Or Gerlitz wrote:

> > Currently, there's no way for user-space applications to specify
> > the IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK QP creation flags
> > defined by commit 47ee1b9 "IB/core: Add support for multicast loopback 
> > blocking".
> > As a result, applications who send and recieve on the same QP over
> > the same multicast group get all their packets bouncded back to them,
> > which is bad..
>
> Hi Christoph, I do see your P&F (Pain and Frustration), however, this
> patch was only meant to be bandaid (*) for the fact that whole ~six
> years elapsed since a basically proper patch that does the task was
> posted http://lists.openfabrics.org/pipermail/general/2008-July/053021.html
> and we still don't have uverbs support for QP creation flags!!
>
> Roland, how you prefer to move on here? we can come up with quick
> patch that just uses the reserved field of struct ib_uverbs_create_qp
> and would allow to support upto 8 creation flags, this would not
> require new uverbs command, OK?

Urgh. So we have all these flags and we cannot use them?

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