Factor out the internal of rpc_nvmf_subsystem_get_controllers() into
a function rpc_nvmf_subsystem_query() to use it for the upcoming RPC,
nvmf_subsystem_get_qpairs.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ibe62bcfadf6b33ef26c018a3667f280b6fcd8fdf
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4049
Community-CI: Broadcom CI
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>