On Wed, 2007-02-07 at 15:24, Sean Hefty wrote: > > I didn't get too far on getting CMA to work. Beyond the bad HopLimit > > feild I was seeing Hal pointed out a number of problems in IBA that > > would prevent it from working as is :< > > I've started thinking about what it would take to get the rdma cm to work > across > a router. I think the rdma cm may need to treat IPv6 addresses as a GID for > this to work across subnets, versus trying to map an ipoib IP address to a > GID > based on ARP.
An IB GID is IPv6 like but not an IPv6 address so I don't think this is a good idea and don't see how you get around mapping IP addresses to GIDs in an IB routed network given the way things are spec'd. I think that the RDMA CM assumes a single IPoIB subnet. Does it work when the destination is on another subnet ? I think there are some unaddressed gateway issues here to make that work and these may have been punted (during spec time). Arkady might be a good person to comment on this. -- Hal > - Sean > > _______________________________________________ > openib-general mailing list > openib-general@openib.org > http://openib.org/mailman/listinfo/openib-general > > To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general > _______________________________________________ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general