[PATCH 0/5] nvmet/nvmet_fc: add events for discovery controller rescan

[Sagi Grimberg]

James,

> A transport may have a transport-specific mechanism that can signal
> when discovery controller content has changed and request a host
> to reconnect to the discovery controller.
> 
> FC is such a transport. RSCNs may be generated by the FC port with
> the discovery server, with the RSCNs then broadcast to the FC-NVME
> hosts. A host, upon receiving the RSCN, would validate connectivity
> then initiate a discovery controller rescan, allowing new subsystems
> to be connected to or updating subsystem connectivity tables.

How does this fit with possible future discovery enhancements discussed
in nvme TWG right now? The notification for discovery records change
will not be transport specific in the future.