On Tue, Feb 19, 2013 at 09:42:45AM +0100, Paolo Bonzini wrote: > Il 19/02/2013 07:00, Michael R. Hines ha scritto: > > Yes, this is done at migration time (see functions "rdma_client_init" > > and "rdma_server_prepare()") > > > > To explain the host and port: > > > > The separate host and port are used by the library "librdmacm". This > > library performs a network translation between the IP address and a > > unique infiniband user-level Port number and the physical interface that > > has the RDMA capabilities. This library requires an IP address and port > > bound specifically to the requested RDMA interface to work. > > > > The patch does not assume that the network interface used for TCP > > traffic will necessarily be the same as the interface used for RDMA > > traffic. > > Of course the best thing to do would be to have all traffic on the RDMA > interface... :) > > Paolo
You can't do this with infiniband, RDMA is only possible once the connection is established. > > Alternatively, this host and port could be specified using the QMP > > "migrate" command, but this command already has the URI for the TCP side > > of things reserved. > > > > If you guys like, we could specify a *second* URI on the QMP command > > line - we don't really have a preference. > > > > Either way is fine........ whatever the consensus is. > > > > - Michael >
