Commit 2d64c287 authored by Krishna Kanth Reddy's avatar Krishna Kanth Reddy Committed by Tomasz Zawadzki
Browse files

module/scheduler: Added dump_info_json function pointer 



Implemented a function dump_info_json to
output governor-specific information to a JSON stream.

Change-Id: Ifbd4c9e7a0d6dea0e6aa0c565eb088a07a0e2826
Signed-off-by: default avatarKrishna Kanth Reddy <krish.reddy@samsung.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/23639


Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: default avatarJim Harris <jim.harris@samsung.com>
Community-CI: Mellanox Build Bot
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
parent fefbeadb

include/spdk/scheduler.h

+8 −0
Original line number Diff line number Diff line
@@ -102,6 +102,14 @@ struct spdk_governor { 
	 */

	int (*get_core_capabilities)(uint32_t lcore_id, struct spdk_governor_capabilities *capabilities);



	/**

	 * Output governor-specific information to a JSON stream.

	 *

	 * The JSON write context will be initialized with an open object, so the governor

	 * should write a name followed by a JSON value (most likely another nested object).

	 */

	int (*dump_info_json)(struct spdk_json_write_ctx *w);



	/**

	 * Initialize a governor.

	 *

mk/spdk.lib_deps.mk

+1 −1
Original line number Diff line number Diff line
@@ -122,7 +122,7 @@ DEPDIRS-sock_uring := log sock util trace 
# module/scheduler

DEPDIRS-scheduler_dynamic := event log thread util json

ifeq (y,$(DPDK_POWER))

DEPDIRS-scheduler_dpdk_governor := event log

DEPDIRS-scheduler_dpdk_governor := event json log

DEPDIRS-scheduler_gscheduler := event log

endif

module/scheduler/dpdk_governor/dpdk_governor.c

+26 −0
Original line number Diff line number Diff line
@@ -91,6 +91,31 @@ _get_core_capabilities(uint32_t lcore_id, struct spdk_governor_capabilities *cap 
	return 0;

}



static int

_dump_info_json(struct spdk_json_write_ctx *w)

{

	enum power_management_env env;



	env = rte_power_get_env();



	if (env == PM_ENV_ACPI_CPUFREQ) {

		spdk_json_write_named_string(w, "env", "acpi-cpufreq");

	} else if (env == PM_ENV_KVM_VM) {

		spdk_json_write_named_string(w, "env", "kvm");

	} else if (env == PM_ENV_PSTATE_CPUFREQ) {

		spdk_json_write_named_string(w, "env", "intel-pstate");

	} else if (env == PM_ENV_CPPC_CPUFREQ) {

		spdk_json_write_named_string(w, "env", "cppc-cpufreq");

	} else if (env == PM_ENV_AMD_PSTATE_CPUFREQ) {

		spdk_json_write_named_string(w, "env", "amd-pstate");

	} else {

		spdk_json_write_named_string(w, "env", "unknown");

		return -EINVAL;

	}



	return 0;

}



static int

_init_core(uint32_t lcore_id)

{
@@ -171,6 +196,7 @@ static struct spdk_governor dpdk_governor = { 
	.set_core_freq_max = _set_core_freq_max,

	.set_core_freq_min = _set_core_freq_min,

	.get_core_capabilities = _get_core_capabilities,

	.dump_info_json = _dump_info_json,

	.init = _init,

	.deinit = _deinit,

};