[ofa-general] Re: [PATCH 1/4] opensm/osm_ucast_cache.{c, h}: ucast routing cache implementation

Yevgeny Kliteynik kliteyn at dev.mellanox.co.il
Mon May 5 14:58:13 PDT 2008


Hal Rosenstock wrote:
> Hi Yevgeny,
> 
> On Sun, 2008-05-04 at 12:59 +0300, Yevgeny Kliteynik wrote:
> 
> I haven't yet had a chance to review this in detail but think that
> router ports need to be accomodated in the subnet (I think this is a
> firm requirement as router ports on the subnet are already supported)
> and also think that nothing should be introduced precluding the running
> of OpenSM on a router port. From the latter standpoint, it looks much
> like a CA port.

This is exactly how I implemented it - any non-switch port is
treated as CA, which is just a target LID.

Well, I mean I intended to implement it that way - I reviewed it again,
and it appears that the cache is fine with routing to routers and running
from switches, but there will be a problem when SM runs on a router node -
cache will complain and fall back to usual routing.
That can be easily fixed.

However, I'm not sure how the OpenSM will behave in general when running
from switch or router - I've never tried it. Has anyone try it?

-- Yevgeny

> -- Hal
> 
> 




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