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

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Message-ID: <47F4C21A.6090402@mellanox.co.il>
Date:	Thu, 03 Apr 2008 14:40:10 +0300
From:	Tziporet Koren <tziporet@....mellanox.co.il>
To:	Roland Dreier <rdreier@...co.com>
CC:	tziporet@....mellanox.co.il, general@...ts.openfabrics.org,
	linux-kernel@...r.kernel.org
Subject: Re: [ofa-general] InfiniBand/iWARP/RDMA merge plans for 2.6.26 (what's
 in infiniband.git)

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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