[openib-general] *****SPAM***** [PATCH][RFC/v1][6/12] Add IPoIB (IP-over-InfiniBand) driver

Hal Rosenstock halr at voltaire.com
Thu Nov 18 12:41:13 PST 2004


On Thu, 2004-11-18 at 15:11, Roland Dreier wrote:
>     Hal> Yes and no. While it is the appears the same in terms of the
>     Hal> host (and Linux already handles part of the problem, the
>     Hal> semantics are not as rich as they need to be for IB. I am
>     Hal> referring to knowing whether to join as a send only member,
>     Hal> non member, or full member. (I think at least the non
>     Hal> member/full member distinction is important; I can live
>     Hal> without send only members as this is a minor optimization IMO
>     Hal> although it does match the idea of an IP multicast
>     Hal> transmitter).
> 
>     Hal> If you think the idea above is correct, I will craft some
>     Hal> verbiage.
> 
> Sounds good.

Here's a first cut at some working on multicast:

Although IB has a special join mode intended to support IP multicast
routing (non member), as no means to identify different multicast styles
has yet been determined, all joins are currently full member. We are
looking for guidance in how to solve this.

One more thing:
Do we also want to say something about no SM right now ? Or is that
putting a cosmic kick me sign on ?

-- Hal




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