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Re: Linux support for RDMA (was: [Ksummit-2005-discuss] Summary of 2005

To: jaganav@xxxxxxxxxx
Subject: Re: Linux support for RDMA (was: [Ksummit-2005-discuss] Summary of 2005 Kernel Summit Proposed Topics)
From: Stephen Hemminger <shemminger@xxxxxxxx>
Date: Fri, 1 Apr 2005 15:43:48 -0800
Cc: Roland Dreier <roland@xxxxxxxxxxx>, Benjamin LaHaise <bcrl@xxxxxxxxx>, Dmitry Yusupov <dmitry_yus@xxxxxxxxx>, open-iscsi@xxxxxxxxxxxxxxxx, "David S. Miller" <davem@xxxxxxxxxxxxx>, mpm@xxxxxxxxxxx, andrea@xxxxxxx, michaelc@xxxxxxxxxxx, James.Bottomley@xxxxxxxxxxxxxxxxxxxxx, ksummit-2005-discuss@xxxxxxxxx, netdev@xxxxxxxxxxx, bmt@xxxxxxxxxxxxxx
In-reply-to: <1112321619.424cae539e75e@xxxxxxxxxxxxxxxxxx>
Organization: Open Source Development Lab
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On Thu, 31 Mar 2005 21:13:39 -0500
jaganav@xxxxxxxxxx wrote:

> Quoting Roland Dreier <roland@xxxxxxxxxxx>:
> > I have to admit I don't know much about the TOE / RDMA/TCP / RNIC (or
> > whatever you want to call it) world.  However I know that the large
> > majority of InfiniBand use right now is running on Linux, and I hope
> > the Linux community is willing to work with the IB community.
> >
> Just want to let everyone know know that we have started an opensource
> effort ( for enablement of RNICs (RDMA enabled NICs). This
> community has now come up with an architecture
> ( to build this support in Linux.
> Would really appreciate if you review and provide any comments. We have just
> started to hack but no code is available on this project yet.
> Thanks
> Venkat

OpenRdma is a misnomer, because as I read your architecture you are trying to
create a "kernel abstraction layer" for closed source vendor RDMA drivers. This 
never be accepted,  please go back to the drawing board and figure out how to 
real open source drivers.

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