[ofa-general] [PATCH] ipoib: configurable broadcast scope

[Rolf Manderscheid]

Hi Roland,

In order to make ipoib work over routers, the scope of link-level
ipoib broadcast address must be non-local.  This requires a way to
configure the scope.  I posted a patch to address this on August 30:
http://lists.openfabrics.org/pipermail/general/2007-August/040197.html
It has since been used by scinet at SC07.

I have split that patch into two pieces: the first isolates the
required changes to the net code, the second adds a broadcast_scope
attribute to parent ipoib devices.  Having at least the first patch
upstream would be convenient, not having it means rebuilding the
whole kernel if you want to use an IB router.

One of the things that came out of SC07 was a request to enable child
devices to use the same pkey as the parent, but with different scopes.
The remaining patches are related to this (they are new and were not
used at the show).

    Rolf