Added per-namespace config_json callbacks, so that each namespace can
dump its own configuration. This is a nop for regular NVMe namespaces,
but it will be used by Open Channel ones to save their bdev configuration.
The callbacks are executed after controller configuration has been
saved. This ensures that when a config is loaded, any namespace related
RPC calls (e.g. creating bdevs) are run after associated controller has
already been attached.
Change-Id: Ia18e15b46f10b058c1b6a9b74edb386e1b4874de
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/477436
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
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