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

module/scheduler: Added get_core_avail_freqs 



To get the available frequencies of a specific Core ID.

Change-Id: I9187a1643c22fb0cff76ba069f99eac1a577e2ad
Signed-off-by: default avatarKrishna Kanth Reddy <krish.reddy@samsung.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/23638


Community-CI: Mellanox Build Bot
Reviewed-by: default avatarJim Harris <jim.harris@samsung.com>
Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
parent 78a2b8a8

include/spdk/scheduler.h

+13 −0
Original line number Diff line number Diff line
@@ -34,6 +34,19 @@ struct spdk_governor_capabilities { 
struct spdk_governor {

	const char *name;



	/**

	 * Get available frequencies of a given core.

	 *

	 * \param lcore_id Core ID.

	 * \param freqs The buffer array to save the frequencies.

	 * \param num Number of frequencies to get.

	 *

	 * \return The number of frequencies returned in freqs. 0 on error.

	 *         0 is returned if it could not get the frequencies or

	 *         if the freqs array is too small to fit the returned frequencies.

	 */

	uint32_t (*get_core_avail_freqs)(uint32_t lcore_id, uint32_t *freqs, uint32_t num);



	/**

	 * Get current frequency of a given core.

	 *

lib/event/Makefile

+2 −2
Original line number Diff line number Diff line
@@ -6,8 +6,8 @@ 
SPDK_ROOT_DIR := $(abspath $(CURDIR)/../..)

include $(SPDK_ROOT_DIR)/mk/spdk.common.mk



SO_VER := 13

SO_MINOR := 1

SO_VER := 14

SO_MINOR := 0



CFLAGS += $(ENV_CFLAGS) -Wno-address-of-packed-member

module/scheduler/dpdk_governor/dpdk_governor.c

+16 −0
Original line number Diff line number Diff line
@@ -13,6 +13,21 @@ 


#include <rte_power.h>



static uint32_t

_get_core_avail_freqs(uint32_t lcore_id, uint32_t *freqs, uint32_t num)

{

	uint32_t rc;



	rc = rte_power_freqs(lcore_id, freqs, num);

	if (!rc) {

		SPDK_ERRLOG("Unable to get current core frequency array for core %d\n.", lcore_id);



		return 0;

	}



	return rc;

}



static uint32_t

_get_core_curr_freq(uint32_t lcore_id)

{
@@ -149,6 +164,7 @@ _deinit(void) 


static struct spdk_governor dpdk_governor = {

	.name = "dpdk_governor",

	.get_core_avail_freqs = _get_core_avail_freqs,

	.get_core_curr_freq = _get_core_curr_freq,

	.core_freq_up = _core_freq_up,

	.core_freq_down = _core_freq_down,