On Fri, Jul 07, 2006 at 01:25:44PM -0500, Steve Wise wrote: > > Some IP networking is involved for this. IP addresses and port numbers > are used by the RDMA Connection Manager. The motivation for this was > two-fold, I think: > > 1) to simplify the connection setup model. The IB CM model was very > complex. > > 2) to allow ULPs to be transport independent. Thus a single code base > for NFSoRDMA, for example, can run over Infiniband and RDMA/TCP > transports without code changes or knowing about transport-specific > addressing. > > The routing table is also consulted to determine which rdma device > should be used for connection setup. Each rdma device also installs a > netdev device for native stack traffic. The RDMA CM maintains an > association between the netdev device and the rdma device. > > And the Infiniband subsystem uses ARP over IPoIB to map IP addresses to > GID/QPN info. This is done by calling arp_send() directly, and snooping > all ARP packets to "discover" when the arp entry is completed.
This sounds interesting. Since this is going to be IB-neutral, what about moving high-level logic like this is moved out of drivers/infiniband and into net? That way the rest of the networking community can add input into how things are done. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <[EMAIL PROTECTED]> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
