[PATCH v2 2/2] IB/mlx5: set UMR wqe fence according to HCA cap

[Leon Romanovsky]

On Tue, May 30, 2017 at 01:51:33PM +0300, Sagi Grimberg wrote:
> Leon,
>
> > > We don't fence those WR's.
> > > Christoph just re-write it to be more intuitive code. I don't see logic
> > > difference, am I wrong here ?
> >
> > A little bit, before Christoph's suggestion, we calculated fence for
> > the paths which need such fence, after we will calculate for all paths.
>
> Every WQE posted to a send queue must include a fence bit. All work
> request posted on the send queue calculate the required fence, this
> used to happen in finish_wqe call-sites with get_fence(), Christoph
> just inlin'ed it.

Sagi,

Thanks, I found my mistake, I saw that IB_SEND_INLINE WR doesn't call to
get_fence and we have an if() which can skip finish_wqe, so I thought
that finish_wqe isn't called always, however it was for error path.

Thanks again.
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