On Wed, Sep 03, 2008 at 12:48:53AM +0300, Or Gerlitz wrote: > On Tue, Sep 2, 2008 at 11:04 PM, Andy Grover <[EMAIL PROTECTED]> wrote: > > > We've been discussing dropping RDS's support for using TCP as a transport, > > and just focusing on RDS as a IB and iWARP-focused protocol. > > > do we have any results that compare Oracle IPC using rds/bcopy/tcp vs udp? > > This would simplify the RDS codebase, allow easier inclusion of more > > IB-centric features, and also give RDS an easier path towards mainline Linux > > kernel inclusion. Also, the imminent RDS iWARP support will address non-IB > > use cases. > > > So just to make sure, do IB and iWARP share the same transport code today? > if yes, does removing TCP means the transport abstraction would not be > needed any more, or you still want to maintain it for the loopback case? > Generally speaking, the loopback transport also uses IB, correct? and if it > doesn't I am quite sure it can.
Not all iWARP devices can do loopback, so having it done in the IB specific code could be painful. I believe there is a loopback module in RDS which can handle this though. > > I tend to agree with Jon that removing TCP might help with mainline > inclusion or might create damage... > > Roland, maybe you have more definitive intuitions re the netdev people > potential feedback on rds as a new socket type applicable to RDMA cards such > as IB and iWARP using a verbs/rdmacm native transport AND to non RDMA cards > with TCP transport, vs the case of RDS being "just" a ULP under > drivers/infiniband/ulps that defines a new socket type, etc. > > > Or > _______________________________________________ > general mailing list > [email protected] > http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general > > To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
