Re: [ofa-general] InfiniBand/iWARP/RDMA merge plans for 2.6.26 (what'sin infiniband.git)

From: Tziporet Koren
Date: Thu Apr 03 2008 - 07:40:34 EST


Roland Dreier wrote:
Send with invalidate should be OK. Let's see about the masked atomics
stuff -- we have a ton of new verbs and I think we might want to slow
down and make sure it all makes sense.
OK - will send and then we will see what will come out.

> What about the split CQ for UD mode? It's improved the IPoIB
> performance for small messages significantly.

Oh yeah... I'll try to get that in too.
thanks
> mlx4- we plan to send patches for the low level driver only to enable
> mlx4_en. These only affect our low level driver.

No problem in principle, let's see the actual patches.
Sure
> I think we should try to push for XEC in 2.6.26 since there are
> already MPI implementation that use it and this ties them to use OFED
> only.
> Also this feature is stable and now being defined in IBTA
> Not taking it causing changes between OFED and the kernel and your
> libibverbs and we wish to avoid such gaps.
> Is there any thing we can do to help and make it into 2.6.26?

I don't have a good feeling that the user-kernel interface is well
thought out, so I want to consider XRC + ehca LL stuff + new iWARP verbs
and make sure we have something that makes sense for the future.

I see - but can't we figure this all for the 2.6.26 window?

Tziporet

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