Add an new RPC, nvmf_subsystem_get_controllers to retrieve the list
of NVMe-oF controllers of an NVMe-oF subsystem.
One of the main use cases will be to get identification information
of NVMe-oF controllers to configure their ANA states dynamically.
Pause and resume the subsystem to access the controllers safely.
One subtle issue remains. The JSON RPC returns success even if
resuming the subsystem fails. Write FIXME explicitly to address this.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ibf8d1cf56850a705e343b86022d101b4c7204199
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/3848
Community-CI: Mellanox Build Bot
Community-CI: Broadcom CI
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
4cc04a1251