On Wed, Oct 19, 2011 at 11:24 PM, Bart Van Assche <[email protected]> wrote: > If you have a look at the output of the command ibv_devices -v > (maintained by Roland), you will see that in the output of that > command ports are identified by a 64-bit GUID.
Where would I see that? Seriously, I don't know where ibv_devices prints anything about ports. It lists device by "node GUID" which is a globally unique ID, but that is per-adapter (and of course 2-port adapters are very common). It is true that every port does have a port GUID, but those are not used in most places -- typically we use a port GID. Again, it is true that GID table entry 0 must be formed by taking the subnet prefix (assigned by the subnet manager) and appending the port GUID. To be honest I've kind of lost track of where this leads: what exactly are we trying to figure out how to identify? - R. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
