[spp] [PATCH 05/23] spp_vf: move functions to common directory

[x-fn-spp@sl.ntt-tx.co.jp]

From: Hideyuki Yamashita <yamashita.hideyuki@po.ntt-tx.co.jp>

Move common functions of spp_vf and spp_mirror to common directory.

This patch also refactors code on following point.
 change of a function name and the return value.
  - from spp_check_core_index() to spp_check_core_update()
  - from get_del_core_element() to del_component_info()

Signed-off-by: Hideyuki Yamashita <yamashita.hideyuki@po.ntt-tx.co.jp>
Signed-off-by: Naoki Takada <takada.naoki@lab.ntt.co.jp>
---
 src/vf/classifier_mac.c     |   2 +-
 src/vf/common/command_dec.c |   2 +-
 src/vf/common/spp_proc.c    | 932 ++++++++++++++++++++++++++++++++++++
 src/vf/common/spp_proc.h    | 364 ++++++++++++++
 src/vf/spp_vf.c             | 916 +----------------------------------
 src/vf/spp_vf.h             | 100 ----
 6 files changed, 1300 insertions(+), 1016 deletions(-)
 create mode 100644 src/vf/common/spp_proc.c
 create mode 100644 src/vf/common/spp_proc.h

diff --git a/src/vf/classifier_mac.c b/src/vf/classifier_mac.c
index 2a01f0e..4016ab1 100644
--- a/src/vf/classifier_mac.c
+++ b/src/vf/classifier_mac.c
@@ -868,7 +868,7 @@ spp_classifier_mac_do(int id)
 	}
 
 	while (likely(spp_get_core_status(lcore_id) == SPP_CORE_FORWARD) &&
-			likely(spp_check_core_index(lcore_id) == 0)) {
+		    likely(spp_check_core_update(lcore_id) == SPP_RET_NG)) {
 		/* change index of update side */
 		change_update_index(mng_info, id);
 
diff --git a/src/vf/common/command_dec.c b/src/vf/common/command_dec.c
index d16f358..5275f4f 100644
--- a/src/vf/common/command_dec.c
+++ b/src/vf/common/command_dec.c
@@ -273,7 +273,7 @@ decode_component_type_value(void *output, const char *arg_val)
 	if (component->action != SPP_CMD_ACTION_START)
 		return 0;
 
-	set_type = spp_change_component_type(arg_val);
+	set_type = spp_get_component_type(arg_val);
 	if (unlikely(set_type <= 0)) {
 		RTE_LOG(ERR, SPP_COMMAND_PROC,
 				"Unknown component type. val=%s\n",
diff --git a/src/vf/common/spp_proc.c b/src/vf/common/spp_proc.c
new file mode 100644
index 0000000..7b92e38
--- /dev/null
+++ b/src/vf/common/spp_proc.c
@@ -0,0 +1,932 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Nippon Telegraph and Telephone Corporation
+ */
+
+#include <unistd.h>
+#include <string.h>
+
+#include <rte_eth_ring.h>
+#include <rte_eth_vhost.h>
+#include <rte_cycles.h>
+#include <rte_log.h>
+#include <rte_branch_prediction.h>
+
+#include "spp_proc.h"
+#include "spp_port.h"
+
+#include "../vf/spp_forward.h"
+#include "../vf/classifier_mac.h"
+
+/* Declare global variables */
+
+/**
+ * Make a hexdump of an array data in every 4 byte.
+ * This function is used to dump core_info or component info.
+ */
+void
+dump_buff(const char *name, const void *addr, const size_t size)
+{
+	size_t cnt = 0;
+	size_t max = (size / sizeof(unsigned int)) +
+			((size % sizeof(unsigned int)) != 0);
+	const uint32_t *buff = addr;
+
+	if ((name != NULL) && (name[0] != '\0'))
+		RTE_LOG(DEBUG, APP, "dump buff. (%s)\n", name);
+
+	for (cnt = 0; cnt < max; cnt += 16) {
+		RTE_LOG(DEBUG, APP, "[%p]"
+				" %08x %08x %08x %08x %08x %08x %08x %08x"
+				" %08x %08x %08x %08x %08x %08x %08x %08x",
+				&buff[cnt],
+				buff[cnt+0], buff[cnt+1],
+				buff[cnt+2], buff[cnt+3],
+				buff[cnt+4], buff[cnt+5],
+				buff[cnt+6], buff[cnt+7],
+				buff[cnt+8], buff[cnt+9],
+				buff[cnt+10], buff[cnt+11],
+				buff[cnt+12], buff[cnt+13],
+				buff[cnt+14], buff[cnt+15]);
+	}
+}
+
+int
+add_ring_pmd(int ring_id)
+{
+	struct rte_ring *ring;
+	int ring_port_id;
+
+	/* Lookup ring of given id */
+	ring = rte_ring_lookup(get_rx_queue_name(ring_id));
+	if (unlikely(ring == NULL)) {
+		RTE_LOG(ERR, APP,
+			"Cannot get RX ring - is server process running?\n");
+		return -1;
+	}
+
+	/* Create ring pmd */
+	ring_port_id = rte_eth_from_ring(ring);
+	RTE_LOG(INFO, APP, "ring port add. (no = %d / port = %d)\n",
+			ring_id, ring_port_id);
+	return ring_port_id;
+}
+
+int
+add_vhost_pmd(int index, int client)
+{
+	struct rte_eth_conf port_conf = {
+		.rxmode = { .max_rx_pkt_len = ETHER_MAX_LEN }
+	};
+	struct rte_mempool *mp;
+	uint16_t vhost_port_id;
+	int nr_queues = 1;
+	const char *name;
+	char devargs[64];
+	char *iface;
+	uint16_t q;
+	int ret;
+#define NR_DESCS 128
+
+	mp = rte_mempool_lookup(PKTMBUF_POOL_NAME);
+	if (unlikely(mp == NULL)) {
+		RTE_LOG(ERR, APP, "Cannot get mempool for mbufs. "
+				"(name = %s)\n", PKTMBUF_POOL_NAME);
+		return -1;
+	}
+
+	/* eth_vhost0 index 0 iface /tmp/sock0 on numa 0 */
+	name = get_vhost_backend_name(index);
+	iface = get_vhost_iface_name(index);
+
+	sprintf(devargs, "%s,iface=%s,queues=%d,client=%d",
+			name, iface, nr_queues, client);
+	ret = dev_attach_by_devargs(devargs, &vhost_port_id);
+	if (unlikely(ret < 0)) {
+		RTE_LOG(ERR, APP, "spp_rte_eth_dev_attach error. "
+				"(ret = %d)\n", ret);
+		return ret;
+	}
+
+	ret = rte_eth_dev_configure(vhost_port_id, nr_queues, nr_queues,
+		&port_conf);
+	if (unlikely(ret < 0)) {
+		RTE_LOG(ERR, APP, "rte_eth_dev_configure error. "
+				"(ret = %d)\n", ret);
+		return ret;
+	}
+
+	/* Allocate and set up 1 RX queue per Ethernet port. */
+	for (q = 0; q < nr_queues; q++) {
+		ret = rte_eth_rx_queue_setup(vhost_port_id, q, NR_DESCS,
+			rte_eth_dev_socket_id(vhost_port_id), NULL, mp);
+		if (unlikely(ret < 0)) {
+			RTE_LOG(ERR, APP,
+				"rte_eth_rx_queue_setup error. (ret = %d)\n",
+				ret);
+			return ret;
+		}
+	}
+
+	/* Allocate and set up 1 TX queue per Ethernet port. */
+	for (q = 0; q < nr_queues; q++) {
+		ret = rte_eth_tx_queue_setup(vhost_port_id, q, NR_DESCS,
+			rte_eth_dev_socket_id(vhost_port_id), NULL);
+		if (unlikely(ret < 0)) {
+			RTE_LOG(ERR, APP,
+				"rte_eth_tx_queue_setup error. (ret = %d)\n",
+				ret);
+			return ret;
+		}
+	}
+
+	/* Start the Ethernet port. */
+	ret = rte_eth_dev_start(vhost_port_id);
+	if (unlikely(ret < 0)) {
+		RTE_LOG(ERR, APP, "rte_eth_dev_start error. (ret = %d)\n",
+			ret);
+		return ret;
+	}
+
+	RTE_LOG(INFO, APP, "vhost port add. (no = %d / port = %d)\n",
+			index, vhost_port_id);
+	return vhost_port_id;
+}
+
+/* Get core status */
+enum spp_core_status
+spp_get_core_status(unsigned int lcore_id)
+{
+	return g_core_info[lcore_id].status;
+}
+
+/**
+ * Check status of all of cores is same as given
+ *
+ * It returns -1 as status mismatch if status is not same.
+ * If core is in use, status will be checked.
+ */
+static int
+check_core_status(enum spp_core_status status)
+{
+	unsigned int lcore_id = 0;
+	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+		if (g_core_info[lcore_id].status != status) {
+			/* Status is mismatched */
+			return -1;
+		}
+	}
+	return 0;
+}
+
+int
+check_core_status_wait(enum spp_core_status status)
+{
+	int cnt = 0;
+	for (cnt = 0; cnt < SPP_CORE_STATUS_CHECK_MAX; cnt++) {
+		sleep(1);
+		int ret = check_core_status(status);
+		if (ret == 0)
+			return 0;
+	}
+
+	RTE_LOG(ERR, APP, "Status check time out. (status = %d)\n", status);
+	return -1;
+}
+
+/* Set core status */
+void
+set_core_status(unsigned int lcore_id,
+		enum spp_core_status status)
+{
+	g_core_info[lcore_id].status = status;
+}
+
+/* Set all core to given status */
+void
+set_all_core_status(enum spp_core_status status)
+{
+	unsigned int lcore_id = 0;
+	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+		g_core_info[lcore_id].status = status;
+	}
+}
+
+/**
+ * Set all of component status to SPP_CORE_STOP_REQUEST if received signal
+ * is SIGTERM or SIGINT
+ */
+void
+stop_process(int signal)
+{
+	if (unlikely(signal != SIGTERM) &&
+			unlikely(signal != SIGINT)) {
+		return;
+	}
+
+	g_core_info[g_main_lcore_id].status = SPP_CORE_STOP_REQUEST;
+	set_all_core_status(SPP_CORE_STOP_REQUEST);
+}
+
+/**
+ * Return port info of given type and num of interface
+ *
+ * It returns NULL value if given type is invalid.
+ */
+struct spp_port_info *
+get_iface_info(enum port_type iface_type, int iface_no)
+{
+	switch (iface_type) {
+	case PHY:
+		return &g_iface_info.nic[iface_no];
+	case VHOST:
+		return &g_iface_info.vhost[iface_no];
+	case RING:
+		return &g_iface_info.ring[iface_no];
+	default:
+		return NULL;
+	}
+}
+
+/* Dump of core information */
+void
+dump_core_info(const struct core_mng_info *core_info)
+{
+	char str[SPP_NAME_STR_LEN];
+	const struct core_mng_info *info = NULL;
+	unsigned int lcore_id = 0;
+	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+		info = &core_info[lcore_id];
+		RTE_LOG(DEBUG, APP, "core[%d] status=%d, ref=%d, upd=%d\n",
+				lcore_id, info->status,
+				info->ref_index, info->upd_index);
+
+		sprintf(str, "core[%d]-0 type=%d, num=%d", lcore_id,
+				info->core[0].type, info->core[0].num);
+		dump_buff(str, info->core[0].id,
+				sizeof(int)*info->core[0].num);
+
+		sprintf(str, "core[%d]-1 type=%d, num=%d", lcore_id,
+				info->core[1].type, info->core[1].num);
+		dump_buff(str, info->core[1].id,
+				sizeof(int)*info->core[1].num);
+	}
+}
+
+/* Dump of component information */
+void
+dump_component_info(const struct spp_component_info *component_info)
+{
+	char str[SPP_NAME_STR_LEN];
+	const struct spp_component_info *component = NULL;
+	int cnt = 0;
+	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
+		component = &component_info[cnt];
+		if (component->type == SPP_COMPONENT_UNUSE)
+			continue;
+
+		RTE_LOG(DEBUG, APP, "component[%d] name=%s, type=%d, "
+				"core=%u, index=%d\n",
+				cnt, component->name, component->type,
+				component->lcore_id, component->component_id);
+
+		sprintf(str, "component[%d] rx=%d", cnt,
+				component->num_rx_port);
+		dump_buff(str, component->rx_ports,
+			sizeof(struct spp_port_info *)*component->num_rx_port);
+
+		sprintf(str, "component[%d] tx=%d", cnt,
+				component->num_tx_port);
+		dump_buff(str, component->tx_ports,
+			sizeof(struct spp_port_info *)*component->num_tx_port);
+	}
+}
+
+/* Dump of interface information */
+void
+dump_interface_info(const struct iface_info *iface_info)
+{
+	const struct spp_port_info *port = NULL;
+	int cnt = 0;
+	RTE_LOG(DEBUG, APP, "interface phy=%d, vhost=%d, ring=%d\n",
+			iface_info->num_nic,
+			iface_info->num_vhost,
+			iface_info->num_ring);
+	for (cnt = 0; cnt < RTE_MAX_ETHPORTS; cnt++) {
+		port = &iface_info->nic[cnt];
+		if (port->iface_type == UNDEF)
+			continue;
+
+		RTE_LOG(DEBUG, APP, "phy  [%d] type=%d, no=%d, port=%d, "
+				"vid = %u, mac=%08lx(%s)\n",
+				cnt, port->iface_type, port->iface_no,
+				port->dpdk_port,
+				port->class_id.vlantag.vid,
+				port->class_id.mac_addr,
+				port->class_id.mac_addr_str);
+	}
+	for (cnt = 0; cnt < RTE_MAX_ETHPORTS; cnt++) {
+		port = &iface_info->vhost[cnt];
+		if (port->iface_type == UNDEF)
+			continue;
+
+		RTE_LOG(DEBUG, APP, "vhost[%d] type=%d, no=%d, port=%d, "
+				"vid = %u, mac=%08lx(%s)\n",
+				cnt, port->iface_type, port->iface_no,
+				port->dpdk_port,
+				port->class_id.vlantag.vid,
+				port->class_id.mac_addr,
+				port->class_id.mac_addr_str);
+	}
+	for (cnt = 0; cnt < RTE_MAX_ETHPORTS; cnt++) {
+		port = &iface_info->ring[cnt];
+		if (port->iface_type == UNDEF)
+			continue;
+
+		RTE_LOG(DEBUG, APP, "ring [%d] type=%d, no=%d, port=%d, "
+				"vid = %u, mac=%08lx(%s)\n",
+				cnt, port->iface_type, port->iface_no,
+				port->dpdk_port,
+				port->class_id.vlantag.vid,
+				port->class_id.mac_addr,
+				port->class_id.mac_addr_str);
+	}
+}
+
+/* Dump of all management information */
+void
+dump_all_mng_info(
+		const struct core_mng_info *core,
+		const struct spp_component_info *component,
+		const struct iface_info *interface)
+{
+	if (rte_log_get_global_level() < RTE_LOG_DEBUG)
+		return;
+
+	dump_core_info(core);
+	dump_component_info(component);
+	dump_interface_info(interface);
+}
+
+/* Copy management information */
+void
+copy_mng_info(
+		struct core_mng_info *dst_core,
+		struct spp_component_info *dst_component,
+		struct iface_info *dst_interface,
+		const struct core_mng_info *src_core,
+		const struct spp_component_info *src_component,
+		const struct iface_info *src_interface,
+		enum copy_mng_flg flg)
+{
+	int upd_index = 0;
+	unsigned int lcore_id = 0;
+
+	switch (flg) {
+	case COPY_MNG_FLG_UPDCOPY:
+		RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+			upd_index = src_core[lcore_id].upd_index;
+			memcpy(&dst_core[lcore_id].core[upd_index],
+					&src_core[lcore_id].core[upd_index],
+					sizeof(struct core_info));
+		}
+		break;
+	default:
+		/*
+		 * Even if the flag is set to None,
+		 * copying of core is necessary,
+		 * so we will treat all copies as default.
+		 */
+		memcpy(dst_core, src_core,
+				sizeof(struct core_mng_info)*RTE_MAX_LCORE);
+		break;
+	}
+
+	memcpy(dst_component, src_component,
+			sizeof(struct spp_component_info)*RTE_MAX_LCORE);
+	memcpy(dst_interface, src_interface,
+			sizeof(struct iface_info));
+}
+
+/* Backup the management information */
+void
+backup_mng_info(struct cancel_backup_info *backup)
+{
+	dump_all_mng_info(g_core_info, g_component_info, &g_iface_info);
+	copy_mng_info(backup->core, backup->component, &backup->interface,
+			g_core_info, g_component_info, &g_iface_info,
+			COPY_MNG_FLG_ALLCOPY);
+	dump_all_mng_info(backup->core, backup->component, &backup->interface);
+	memset(g_change_core, 0x00, sizeof(g_change_core));
+	memset(g_change_component, 0x00, sizeof(g_change_component));
+}
+
+/**
+ * Initialize g_iface_info
+ *
+ * Clear g_iface_info and set initial value.
+ */
+static void
+init_iface_info(void)
+{
+	int port_cnt;  /* increment ether ports */
+	memset(&g_iface_info, 0x00, sizeof(g_iface_info));
+	for (port_cnt = 0; port_cnt < RTE_MAX_ETHPORTS; port_cnt++) {
+		g_iface_info.nic[port_cnt].iface_type = UNDEF;
+		g_iface_info.nic[port_cnt].iface_no   = port_cnt;
+		g_iface_info.nic[port_cnt].dpdk_port  = -1;
+		g_iface_info.nic[port_cnt].class_id.vlantag.vid =
+				ETH_VLAN_ID_MAX;
+		g_iface_info.vhost[port_cnt].iface_type = UNDEF;
+		g_iface_info.vhost[port_cnt].iface_no   = port_cnt;
+		g_iface_info.vhost[port_cnt].dpdk_port  = -1;
+		g_iface_info.vhost[port_cnt].class_id.vlantag.vid =
+				ETH_VLAN_ID_MAX;
+		g_iface_info.ring[port_cnt].iface_type = UNDEF;
+		g_iface_info.ring[port_cnt].iface_no   = port_cnt;
+		g_iface_info.ring[port_cnt].dpdk_port  = -1;
+		g_iface_info.ring[port_cnt].class_id.vlantag.vid =
+				ETH_VLAN_ID_MAX;
+	}
+}
+
+/**
+ * Initialize g_component_info
+ */
+static void
+init_component_info(void)
+{
+	int cnt;
+	memset(&g_component_info, 0x00, sizeof(g_component_info));
+	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++)
+		g_component_info[cnt].component_id = cnt;
+	memset(g_change_component, 0x00, sizeof(g_change_component));
+}
+
+/**
+ * Initialize g_core_info
+ */
+static void
+init_core_info(void)
+{
+	int cnt = 0;
+	memset(&g_core_info, 0x00, sizeof(g_core_info));
+	set_all_core_status(SPP_CORE_STOP);
+	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
+		g_core_info[cnt].ref_index = 0;
+		g_core_info[cnt].upd_index = 1;
+	}
+	memset(g_change_core, 0x00, sizeof(g_change_core));
+}
+
+/**
+ * Setup port info of port on host
+ */
+static int
+set_nic_interface(void)
+{
+	int nic_cnt = 0;
+
+	/* NIC Setting */
+	g_iface_info.num_nic = rte_eth_dev_count_avail();
+	if (g_iface_info.num_nic > RTE_MAX_ETHPORTS)
+		g_iface_info.num_nic = RTE_MAX_ETHPORTS;
+
+	for (nic_cnt = 0; nic_cnt < g_iface_info.num_nic; nic_cnt++) {
+		g_iface_info.nic[nic_cnt].iface_type   = PHY;
+		g_iface_info.nic[nic_cnt].dpdk_port = nic_cnt;
+	}
+
+	return 0;
+}
+
+/**
+ * Setup management info for spp_vf
+ */
+int
+init_mng_data(void)
+{
+	/* Initialize interface and core information */
+	init_iface_info();
+	init_core_info();
+	init_component_info();
+
+	int ret_nic = set_nic_interface();
+	if (unlikely(ret_nic != 0))
+		return -1;
+
+	return 0;
+}
+
+#ifdef SPP_RINGLATENCYSTATS_ENABLE
+/**
+ * Print statistics of time for packet processing in ring interface
+ */
+static void
+print_ring_latency_stats(void)
+{
+	/* Clear screen and move cursor to top left */
+	const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
+	const char clr[] = { 27, '[', '2', 'J', '\0' };
+	printf("%s%s", clr, topLeft);
+
+	int ring_cnt, stats_cnt;
+	struct spp_ringlatencystats_ring_latency_stats stats[RTE_MAX_ETHPORTS];
+	memset(&stats, 0x00, sizeof(stats));
+
+	printf("RING Latency\n");
+	printf(" RING");
+	for (ring_cnt = 0; ring_cnt < RTE_MAX_ETHPORTS; ring_cnt++) {
+		if (g_iface_info.ring[ring_cnt].iface_type == UNDEF)
+			continue;
+
+		spp_ringlatencystats_get_stats(ring_cnt, &stats[ring_cnt]);
+		printf(", %-18d", ring_cnt);
+	}
+	printf("\n");
+
+	for (stats_cnt = 0; stats_cnt < SPP_RINGLATENCYSTATS_STATS_SLOT_COUNT;
+			stats_cnt++) {
+		printf("%3dns", stats_cnt);
+		for (ring_cnt = 0; ring_cnt < RTE_MAX_ETHPORTS; ring_cnt++) {
+			if (g_iface_info.ring[ring_cnt].iface_type == UNDEF)
+				continue;
+
+			printf(", 0x%-16lx", stats[ring_cnt].slot[stats_cnt]);
+		}
+		printf("\n");
+	}
+}
+#endif /* SPP_RINGLATENCYSTATS_ENABLE */
+
+/* Remove sock file if spp is not running */
+void
+del_vhost_sockfile(struct spp_port_info *vhost)
+{
+	int cnt;
+
+	/* Do not remove for if it is running in vhost-client mode. */
+	if (g_startup_param.vhost_client != 0)
+		return;
+
+	for (cnt = 0; cnt < RTE_MAX_ETHPORTS; cnt++) {
+		if (likely(vhost[cnt].iface_type == UNDEF)) {
+			/* Skip removing if it is not using vhost */
+			continue;
+		}
+
+		remove(get_vhost_iface_name(cnt));
+	}
+}
+
+/* Get component type of target core */
+enum spp_component_type
+spp_get_component_type(unsigned int lcore_id)
+{
+	struct core_mng_info *info = &g_core_info[lcore_id];
+	return info->core[info->ref_index].type;
+}
+
+/* Get core ID of target component */
+unsigned int
+spp_get_component_core(int component_id)
+{
+	struct spp_component_info *info = &g_component_info[component_id];
+	return info->lcore_id;
+}
+
+/* Get core information which is in use */
+struct core_info *
+get_core_info(unsigned int lcore_id)
+{
+	struct core_mng_info *info = &g_core_info[lcore_id];
+	return &(info->core[info->ref_index]);
+}
+
+/* Check core index change */
+int
+spp_check_core_update(unsigned int lcore_id)
+{
+	struct core_mng_info *info = &g_core_info[lcore_id];
+	if (info->ref_index == info->upd_index)
+		return SPP_RET_OK;
+	else
+		return SPP_RET_NG;
+}
+
+int
+spp_check_used_port(
+		enum port_type iface_type,
+		int iface_no,
+		enum spp_port_rxtx rxtx)
+{
+	int cnt, port_cnt, max = 0;
+	struct spp_component_info *component = NULL;
+	struct spp_port_info **port_array = NULL;
+	struct spp_port_info *port = get_iface_info(iface_type, iface_no);
+
+	if (port == NULL)
+		return SPP_RET_NG;
+
+	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
+		component = &g_component_info[cnt];
+		if (component->type == SPP_COMPONENT_UNUSE)
+			continue;
+
+		if (rxtx == SPP_PORT_RXTX_RX) {
+			max = component->num_rx_port;
+			port_array = component->rx_ports;
+		} else if (rxtx == SPP_PORT_RXTX_TX) {
+			max = component->num_tx_port;
+			port_array = component->tx_ports;
+		}
+		for (port_cnt = 0; port_cnt < max; port_cnt++) {
+			if (unlikely(port_array[port_cnt] == port))
+				return cnt;
+		}
+	}
+
+	return SPP_RET_NG;
+}
+
+/* Set component update flag for given port */
+void
+set_component_change_port(struct spp_port_info *port, enum spp_port_rxtx rxtx)
+{
+	int ret = 0;
+	if ((rxtx == SPP_PORT_RXTX_RX) || (rxtx == SPP_PORT_RXTX_ALL)) {
+		ret = spp_check_used_port(port->iface_type, port->iface_no,
+				SPP_PORT_RXTX_RX);
+		if (ret >= 0)
+			g_change_component[ret] = 1;
+	}
+
+	if ((rxtx == SPP_PORT_RXTX_TX) || (rxtx == SPP_PORT_RXTX_ALL)) {
+		ret = spp_check_used_port(port->iface_type, port->iface_no,
+				SPP_PORT_RXTX_TX);
+		if (ret >= 0)
+			g_change_component[ret] = 1;
+	}
+}
+
+/* Get unused component id */
+int
+get_free_component(void)
+{
+	int cnt = 0;
+	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
+		if (g_component_info[cnt].type == SPP_COMPONENT_UNUSE)
+			return cnt;
+	}
+	return -1;
+}
+
+/* Get component id for specified component name */
+int
+spp_get_component_id(const char *name)
+{
+	int cnt = 0;
+	if (name[0] == '\0')
+		return SPP_RET_NG;
+
+	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
+		if (strcmp(name, g_component_info[cnt].name) == 0)
+			return cnt;
+	}
+	return SPP_RET_NG;
+}
+
+/* Delete component information */
+int
+del_component_info(int component_id, int component_num, int *componet_array)
+{
+	int cnt;
+	int match = -1;
+	int max = component_num;
+
+	for (cnt = 0; cnt < max; cnt++) {
+		if (component_id == componet_array[cnt])
+			match = cnt;
+	}
+
+	if (match < 0)
+		return -1;
+
+	/* Last element is excluded from movement. */
+	max--;
+
+	for (cnt = match; cnt < max; cnt++)
+		componet_array[cnt] = componet_array[cnt+1];
+
+	/* Last element is cleared. */
+	componet_array[cnt] = 0;
+	return 0;
+}
+
+/* get port element which matches the condition */
+int
+check_port_element(
+		struct spp_port_info *info,
+		int num,
+		struct spp_port_info *array[])
+{
+	int cnt = 0;
+	int match = -1;
+	for (cnt = 0; cnt < num; cnt++) {
+		if (info == array[cnt])
+			match = cnt;
+	}
+	return match;
+}
+
+/* search matched port_info from array and delete it */
+int
+get_del_port_element(
+		struct spp_port_info *info,
+		int num,
+		struct spp_port_info *array[])
+{
+	int cnt = 0;
+	int match = -1;
+	int max = num;
+
+	match = check_port_element(info, num, array);
+	if (match < 0)
+		return -1;
+
+	/* Last element is excluded from movement. */
+	max--;
+
+	for (cnt = match; cnt < max; cnt++)
+		array[cnt] = array[cnt+1];
+
+	/* Last element is cleared. */
+	array[cnt] = NULL;
+	return 0;
+}
+
+/* Flush initial setting of each interface. */
+int
+flush_port(void)
+{
+	int ret = 0;
+	int cnt = 0;
+	struct spp_port_info *port = NULL;
+
+	/* Initialize added vhost. */
+	for (cnt = 0; cnt < RTE_MAX_ETHPORTS; cnt++) {
+		port = &g_iface_info.vhost[cnt];
+		if ((port->iface_type != UNDEF) && (port->dpdk_port < 0)) {
+			ret = add_vhost_pmd(port->iface_no,
+					g_startup_param.vhost_client);
+			if (ret < 0)
+				return SPP_RET_NG;
+			port->dpdk_port = ret;
+		}
+	}
+
+	/* Initialize added ring. */
+	for (cnt = 0; cnt < RTE_MAX_ETHPORTS; cnt++) {
+		port = &g_iface_info.ring[cnt];
+		if ((port->iface_type != UNDEF) && (port->dpdk_port < 0)) {
+			ret = add_ring_pmd(port->iface_no);
+			if (ret < 0)
+				return SPP_RET_NG;
+			port->dpdk_port = ret;
+		}
+	}
+	return SPP_RET_OK;
+}
+
+/* Flush changed core. */
+void
+flush_core(void)
+{
+	int cnt = 0;
+	struct core_mng_info *info = NULL;
+
+	/* Changed core has changed index. */
+	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
+		if (g_change_core[cnt] != 0) {
+			info = &g_core_info[cnt];
+			info->upd_index = info->ref_index;
+		}
+	}
+
+	/* Waiting for changed core change. */
+	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
+		if (g_change_core[cnt] != 0) {
+			info = &g_core_info[cnt];
+			while (likely(info->ref_index == info->upd_index))
+				rte_delay_us_block(SPP_CHANGE_UPDATE_INTERVAL);
+
+			memcpy(&info->core[info->upd_index],
+					&info->core[info->ref_index],
+					sizeof(struct core_info));
+		}
+	}
+}
+
+/* Flush change for forwarder or classifier_mac */
+int
+flush_component(void)
+{
+	int ret = 0;
+	int cnt = 0;
+	struct spp_component_info *component_info = NULL;
+
+	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
+		if (g_change_component[cnt] == 0)
+			continue;
+
+		component_info = &g_component_info[cnt];
+		spp_port_ability_update(component_info);
+
+		if (component_info->type == SPP_COMPONENT_CLASSIFIER_MAC)
+			ret = spp_classifier_mac_update(component_info);
+		else
+			ret = spp_forward_update(component_info);
+
+		if (unlikely(ret < 0)) {
+			RTE_LOG(ERR, APP, "Flush error. "
+					"( component = %s, type = %d)\n",
+					component_info->name,
+					component_info->type);
+			return SPP_RET_NG;
+		}
+	}
+	return SPP_RET_OK;
+}
+
+/**
+ * Generate a formatted string of combination from interface type and
+ * number and assign to given 'port'
+ */
+int spp_format_port_string(char *port, enum port_type iface_type, int iface_no)
+{
+	const char *iface_type_str;
+
+	switch (iface_type) {
+	case PHY:
+		iface_type_str = SPP_IFTYPE_NIC_STR;
+		break;
+	case RING:
+		iface_type_str = SPP_IFTYPE_RING_STR;
+		break;
+	case VHOST:
+		iface_type_str = SPP_IFTYPE_VHOST_STR;
+		break;
+	default:
+		return -1;
+	}
+
+	sprintf(port, "%s:%d", iface_type_str, iface_no);
+
+	return 0;
+}
+
+/**
+ * Change mac address of 'aa:bb:cc:dd:ee:ff' to int64 and return it
+ */
+int64_t
+spp_change_mac_str_to_int64(const char *mac)
+{
+	int64_t ret_mac = 0;
+	int64_t token_val = 0;
+	int token_cnt = 0;
+	char tmp_mac[SPP_MIN_STR_LEN];
+	char *str = tmp_mac;
+	char *saveptr = NULL;
+	char *endptr = NULL;
+
+	RTE_LOG(DEBUG, APP, "MAC address change. (mac = %s)\n", mac);
+
+	strcpy(tmp_mac, mac);
+	while (1) {
+		/* Split by colon(':') */
+		char *ret_tok = strtok_r(str, ":", &saveptr);
+		if (unlikely(ret_tok == NULL))
+			break;
+
+		/* Check for mal-formatted address */
+		if (unlikely(token_cnt >= ETHER_ADDR_LEN)) {
+			RTE_LOG(ERR, APP, "MAC address format error. "
+					"(mac = %s)\n", mac);
+			return -1;
+		}
+
+		/* Convert string to hex value */
+		int ret_tol = strtol(ret_tok, &endptr, 16);
+		if (unlikely(ret_tok == endptr) || unlikely(*endptr != '\0'))
+			break;
+
+		/* Append separated value to the result */
+		token_val = (int64_t)ret_tol;
+		ret_mac |= token_val << (token_cnt * 8);
+		token_cnt++;
+		str = NULL;
+	}
+
+	RTE_LOG(DEBUG, APP, "MAC address change. (mac = %s => 0x%08lx)\n",
+			 mac, ret_mac);
+	return ret_mac;
+}
diff --git a/src/vf/common/spp_proc.h b/src/vf/common/spp_proc.h
new file mode 100644
index 0000000..125af52
--- /dev/null
+++ b/src/vf/common/spp_proc.h
@@ -0,0 +1,364 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Nippon Telegraph and Telephone Corporation
+ */
+
+#ifndef _SPP_PROC_H_
+#define _SPP_PROC_H_
+
+/**
+ * @file
+ * SPP process
+ *
+ * SPP component common function.
+ */
+
+#include <netinet/in.h>
+#include "common.h"
+
+/**
+ * Make a hexdump of an array data in every 4 byte.
+ * This function is used to dump core_info or component info.
+ *
+ * @param name
+ *  dump name.
+ * @param addr
+ *  dump address.
+ * @param size
+ *  dump byte size.
+ *
+ */
+void dump_buff(const char *name, const void *addr, const size_t size);
+
+/**
+ * added ring_pmd
+ *
+ * @param ring_id
+ *  added ring id.
+ *
+ * @retval 0~   ring_port_id.
+ * @retval -1   failed.
+ */
+int add_ring_pmd(int ring_id);
+
+/**
+ * added vhost_pmd
+ *
+ * @param index
+ *  add vohst id.
+ * @param client
+ *  add client id.
+ *
+ * @retval 0~   vhost_port_id.
+ * @retval -1   failed.
+ */
+int add_vhost_pmd(int index, int client);
+
+/**
+ * Get core status
+ *
+ * @param lcore_id
+ *  Logical core ID.
+ *
+ * @return
+ *  Status of specified logical core.
+ */
+enum spp_core_status spp_get_core_status(unsigned int lcore_id);
+
+/**
+ * Get component type of target core
+ *
+ * @param lcore_id
+ *  Logical core ID.
+ *
+ * @return
+ *  Type of component executed on specified logical core
+ */
+enum spp_component_type spp_get_component_type(unsigned int lcore_id);
+
+/**
+ * Run check_core_status() for SPP_CORE_STATUS_CHECK_MAX times with
+ * interval time (1sec)
+ *
+ * @param status
+ *  wait check status.
+ *
+ * @retval 0  succeeded.
+ * @retval -1 failed.
+ */
+int check_core_status_wait(enum spp_core_status status);
+
+/**
+ * Set core status
+ *
+ * @param lcore_id
+ *  Logical core ID.
+ * @param status
+ *  set status.
+ *
+ */
+void set_core_status(unsigned int lcore_id, enum spp_core_status status);
+
+/**
+ * Set all core status to given
+ *
+ * @param status
+ *  set status.
+ *
+ */
+void set_all_core_status(enum spp_core_status status);
+
+/**
+ * Set all of component status to SPP_CORE_STOP_REQUEST if received signal
+ * is SIGTERM or SIGINT
+ *
+ * @param signl
+ *  received signal.
+ *
+ */
+void stop_process(int signal);
+
+/**
+ * Return port info of given type and num of interface
+ *
+ * @param iface_type
+ *  Interface type to be validated.
+ * @param iface_no
+ *  Interface number to be validated.
+ *
+ * @retval !NULL  spp_port_info.
+ * @retval NULL   failed.
+ */
+struct spp_port_info *
+get_iface_info(enum port_type iface_type, int iface_no);
+
+/* Dump of core information */
+void dump_core_info(const struct core_mng_info *core_info);
+
+/* Dump of component information */
+void dump_component_info(const struct spp_component_info *component_info);
+
+/* Dump of interface information */
+void dump_interface_info(const struct iface_info *iface_info);
+
+/* Dump of all management information */
+void dump_all_mng_info(
+		const struct core_mng_info *core,
+		const struct spp_component_info *component,
+		const struct iface_info *interface);
+
+/* Copy management information */
+void copy_mng_info(
+		struct core_mng_info *dst_core,
+		struct spp_component_info *dst_component,
+		struct iface_info *dst_interface,
+		const struct core_mng_info *src_core,
+		const struct spp_component_info *src_component,
+		const struct iface_info *src_interface,
+		enum copy_mng_flg flg);
+
+/* Backup the management information */
+void backup_mng_info(struct cancel_backup_info *backup);
+
+/**
+ * Setup management info for spp_vf
+ */
+int init_mng_data(void);
+
+#ifdef SPP_RINGLATENCYSTATS_ENABLE
+/**
+ * Print statistics of time for packet processing in ring interface
+ */
+void print_ring_latency_stats(void);
+#endif /* SPP_RINGLATENCYSTATS_ENABLE */
+
+/* Remove sock file if spp is not running */
+void  del_vhost_sockfile(struct spp_port_info *vhost);
+
+/**
+ * Get component type of target core
+ *
+ * @param lcore_id
+ *  Logical core ID.
+ *
+ * @return
+ *  Type of component executed on specified logical core
+ */
+enum spp_component_type
+spp_get_component_type(unsigned int lcore_id);
+
+/**
+ * Get core ID of target component
+ *
+ * @param component_id
+ *  unique component ID.
+ *
+ * @return
+ *  Logical core id of specified component.
+ */
+unsigned int spp_get_component_core(int component_id);
+
+/* Get core information which is in use */
+struct core_info *get_core_info(unsigned int lcore_id);
+
+/**
+ * Check core index change
+ *
+ * @param lcore_id
+ *  Logical core ID.
+ *
+ *  True if index has changed.
+ * @retval SPP_RET_OK index has changed.
+ * @retval SPP_RET_NG index not changed.
+ */
+int spp_check_core_update(unsigned int lcore_id);
+
+/**
+ * Check if component is using port.
+ *
+ * @param iface_type
+ *  Interface type to be validated.
+ * @param iface_no
+ *  Interface number to be validated.
+ * @param rxtx
+ *  tx/rx type to be validated.
+ *
+ * @retval 0~127      match component ID
+ * @retval SPP_RET_NG failed.
+ */
+int spp_check_used_port(
+		enum port_type iface_type,
+		int iface_no,
+		enum spp_port_rxtx rxtx);
+
+/**
+ * Set component update flag for given port.
+ *
+ * @param port
+ *  spp_port_info address
+ * @param rxtx
+ *  enum spp_port_rxtx
+ *
+ */
+void
+set_component_change_port(struct spp_port_info *port, enum spp_port_rxtx rxtx);
+
+/**
+ * Get unused component id
+ *
+ * @retval 0~127 Component ID.
+ * @retval -1    failed.
+ */
+int get_free_component(void);
+
+/**
+ * Get component id for specified component name
+ *
+ * @param name
+ *  Component name.
+ *
+ * @retval 0~127      Component ID.
+ * @retval SPP_RET_NG failed.
+ */
+int spp_get_component_id(const char *name);
+
+/**
+ *  Delete component information.
+ *
+ * @param component_id
+ *  check data
+ * @param component_num
+ *  array check count
+ * @param componet_array
+ *  check array address
+ *
+ * @retval 0  succeeded.
+ * @retval -1 failed.
+ */
+int
+del_component_info(int component_id, int component_num, int *componet_array);
+
+/**
+ * get port element which matches the condition.
+ *
+ * @param info
+ *  spp_port_info address
+ * @param num
+ *  port count
+ * @param array[]
+ *  spp_port_info array address
+ *
+ * @retval 0~ match index.
+ * @retval -1 failed.
+ */
+int check_port_element(
+		struct spp_port_info *info,
+		int num,
+		struct spp_port_info *array[]);
+
+/**
+ *  search matched port_info from array and delete it.
+ *
+ * @param info
+ *  spp_port_info address
+ * @param num
+ *  port count
+ * @param array[]
+ *  spp_port_info array address
+ *
+ * @retval 0  succeeded.
+ * @retval -1 failed.
+ */
+int get_del_port_element(
+		struct spp_port_info *info,
+		int num,
+		struct spp_port_info *array[]);
+
+/**
+ * Flush initial setting of each interface.
+ *
+ * @retval SPP_RET_OK succeeded.
+ * @retval SPP_RET_NG failed.
+ */
+int flush_port(void);
+
+/**
+ *  Flush changed core.
+ */
+void flush_core(void);
+
+/**
+ *  Flush change for forwarder or classifier_mac.
+ *
+ * @retval SPP_RET_OK succeeded.
+ * @retval SPP_RET_NG failed.
+ */
+int flush_component(void);
+
+/**
+ * Port type to string
+ *
+ * @param port
+ *  Character string of Port type to be converted.
+ * @param iface_type
+ *  port interface type
+ * @param iface_no
+ *  interface no
+ *
+ * @retval 0  succeeded.
+ * @retval -1 failed.
+ */
+int
+spp_format_port_string(char *port, enum port_type iface_type, int iface_no);
+
+/**
+ * Change mac address string to int64
+ *
+ * @param mac
+ *  Character string of MAC address to be converted.
+ *
+ * @retval 0< int64 that store mac address
+ * @retval -1
+ */
+int64_t spp_change_mac_str_to_int64(const char *mac);
+
+#endif /* _SPP_PROC_H_ */
diff --git a/src/vf/spp_vf.c b/src/vf/spp_vf.c
index 96d331e..accef02 100644
--- a/src/vf/spp_vf.c
+++ b/src/vf/spp_vf.c
@@ -146,214 +146,6 @@ usage(const char *progname)
 			, progname);
 }
 
-/* Make a hexdump of an array data in every 4 byte */
-static void
-dump_buff(const char *name, const void *addr, const size_t size)
-{
-	size_t cnt = 0;
-	size_t max = (size / sizeof(unsigned int)) +
-			((size % sizeof(unsigned int)) != 0);
-	const uint32_t *buff = addr;
-
-	if ((name != NULL) && (name[0] != '\0'))
-		RTE_LOG(DEBUG, APP, "dump buff. (%s)\n", name);
-
-	for (cnt = 0; cnt < max; cnt += 16) {
-		RTE_LOG(DEBUG, APP, "[%p]"
-				" %08x %08x %08x %08x %08x %08x %08x %08x"
-				" %08x %08x %08x %08x %08x %08x %08x %08x",
-				&buff[cnt],
-				buff[cnt+0], buff[cnt+1],
-				buff[cnt+2], buff[cnt+3],
-				buff[cnt+4], buff[cnt+5],
-				buff[cnt+6], buff[cnt+7],
-				buff[cnt+8], buff[cnt+9],
-				buff[cnt+10], buff[cnt+11],
-				buff[cnt+12], buff[cnt+13],
-				buff[cnt+14], buff[cnt+15]);
-	}
-}
-
-static int
-add_ring_pmd(int ring_id)
-{
-	struct rte_ring *ring;
-	int ring_port_id;
-
-	/* Lookup ring of given id */
-	ring = rte_ring_lookup(get_rx_queue_name(ring_id));
-	if (unlikely(ring == NULL)) {
-		RTE_LOG(ERR, APP,
-			"Cannot get RX ring - is server process running?\n");
-		return -1;
-	}
-
-	/* Create ring pmd */
-	ring_port_id = rte_eth_from_ring(ring);
-	RTE_LOG(INFO, APP, "ring port add. (no = %d / port = %d)\n",
-			ring_id, ring_port_id);
-	return ring_port_id;
-}
-
-static int
-add_vhost_pmd(int index, int client)
-{
-	struct rte_eth_conf port_conf = {
-		.rxmode = { .max_rx_pkt_len = ETHER_MAX_LEN }
-	};
-	struct rte_mempool *mp;
-	uint16_t vhost_port_id;
-	int nr_queues = 1;
-	const char *name;
-	char devargs[64];
-	char *iface;
-	uint16_t q;
-	int ret;
-#define NR_DESCS 128
-
-	mp = rte_mempool_lookup(PKTMBUF_POOL_NAME);
-	if (unlikely(mp == NULL)) {
-		RTE_LOG(ERR, APP, "Cannot get mempool for mbufs. "
-				"(name = %s)\n", PKTMBUF_POOL_NAME);
-		return -1;
-	}
-
-	/* eth_vhost0 index 0 iface /tmp/sock0 on numa 0 */
-	name = get_vhost_backend_name(index);
-	iface = get_vhost_iface_name(index);
-
-	sprintf(devargs, "%s,iface=%s,queues=%d,client=%d",
-			name, iface, nr_queues, client);
-	ret = dev_attach_by_devargs(devargs, &vhost_port_id);
-	if (unlikely(ret < 0)) {
-		RTE_LOG(ERR, APP, "dev_attach_by_devargs error. (ret = %d)\n",
-				ret);
-		return ret;
-	}
-
-	ret = rte_eth_dev_configure(vhost_port_id, nr_queues, nr_queues,
-		&port_conf);
-	if (unlikely(ret < 0)) {
-		RTE_LOG(ERR, APP, "rte_eth_dev_configure error. "
-				"(ret = %d)\n", ret);
-		return ret;
-	}
-
-	/* Allocate and set up 1 RX queue per Ethernet port. */
-	for (q = 0; q < nr_queues; q++) {
-		ret = rte_eth_rx_queue_setup(vhost_port_id, q, NR_DESCS,
-			rte_eth_dev_socket_id(vhost_port_id), NULL, mp);
-		if (unlikely(ret < 0)) {
-			RTE_LOG(ERR, APP,
-				"rte_eth_rx_queue_setup error. (ret = %d)\n",
-				ret);
-			return ret;
-		}
-	}
-
-	/* Allocate and set up 1 TX queue per Ethernet port. */
-	for (q = 0; q < nr_queues; q++) {
-		ret = rte_eth_tx_queue_setup(vhost_port_id, q, NR_DESCS,
-			rte_eth_dev_socket_id(vhost_port_id), NULL);
-		if (unlikely(ret < 0)) {
-			RTE_LOG(ERR, APP,
-				"rte_eth_tx_queue_setup error. (ret = %d)\n",
-				ret);
-			return ret;
-		}
-	}
-
-	/* Start the Ethernet port. */
-	ret = rte_eth_dev_start(vhost_port_id);
-	if (unlikely(ret < 0)) {
-		RTE_LOG(ERR, APP, "rte_eth_dev_start error. (ret = %d)\n",
-				ret);
-		return ret;
-	}
-
-	RTE_LOG(INFO, APP, "vhost port add. (no = %d / port = %d)\n",
-			index, vhost_port_id);
-	return vhost_port_id;
-}
-
-/* Get core status */
-enum spp_core_status
-spp_get_core_status(unsigned int lcore_id)
-{
-	return g_core_info[lcore_id].status;
-}
-
-/**
- * Check status of all of cores is same as given
- *
- * It returns -1 as status mismatch if status is not same.
- * If core is in use, status will be checked.
- */
-static int
-check_core_status(enum spp_core_status status)
-{
-	unsigned int lcore_id = 0;
-	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
-		if (g_core_info[lcore_id].status != status) {
-			/* Status is mismatched */
-			return -1;
-		}
-	}
-	return 0;
-}
-
-/**
- * Run check_core_status() for SPP_CORE_STATUS_CHECK_MAX times with
- * interval time (1sec)
- */
-static int
-check_core_status_wait(enum spp_core_status status)
-{
-	int cnt = 0;
-	for (cnt = 0; cnt < SPP_CORE_STATUS_CHECK_MAX; cnt++) {
-		sleep(1);
-		int ret = check_core_status(status);
-		if (ret == 0)
-			return 0;
-	}
-
-	RTE_LOG(ERR, APP, "Status check time out. (status = %d)\n", status);
-	return -1;
-}
-
-/* Set core status */
-static void
-set_core_status(unsigned int lcore_id,
-		enum spp_core_status status)
-{
-	g_core_info[lcore_id].status = status;
-}
-
-/* Set all core to given status */
-static void
-set_all_core_status(enum spp_core_status status)
-{
-	unsigned int lcore_id = 0;
-	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
-		g_core_info[lcore_id].status = status;
-	}
-}
-
-/**
- * Set all of component status to SPP_CORE_STOP_REQUEST if received signal
- * is SIGTERM or SIGINT
- */
-static void
-stop_process(int signal) {
-	if (unlikely(signal != SIGTERM) &&
-			unlikely(signal != SIGINT)) {
-		return;
-	}
-
-	g_core_info[g_main_lcore_id].status = SPP_CORE_STOP_REQUEST;
-	set_all_core_status(SPP_CORE_STOP_REQUEST);
-}
-
 /**
  * Convert string of given client id to integer
  *
@@ -479,367 +271,6 @@ parse_app_args(int argc, char *argv[])
 	return 0;
 }
 
-/**
- * Return port info of given type and num of interface
- *
- * It returns NULL value if given type is invalid.
- */
-static struct spp_port_info *
-get_iface_info(enum port_type iface_type, int iface_no)
-{
-	switch (iface_type) {
-	case PHY:
-		return &g_iface_info.nic[iface_no];
-	case VHOST:
-		return &g_iface_info.vhost[iface_no];
-	case RING:
-		return &g_iface_info.ring[iface_no];
-	default:
-		return NULL;
-	}
-}
-
-/* Dump of core information */
-static void
-dump_core_info(const struct core_mng_info *core_info)
-{
-	char str[SPP_NAME_STR_LEN];
-	const struct core_mng_info *info = NULL;
-	unsigned int lcore_id = 0;
-	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
-		info = &core_info[lcore_id];
-		RTE_LOG(DEBUG, APP, "core[%d] status=%d, ref=%d, upd=%d\n",
-				lcore_id, info->status,
-				info->ref_index, info->upd_index);
-
-		sprintf(str, "core[%d]-0 type=%d, num=%d", lcore_id,
-				info->core[0].type, info->core[0].num);
-		dump_buff(str, info->core[0].id,
-				sizeof(int)*info->core[0].num);
-
-		sprintf(str, "core[%d]-1 type=%d, num=%d", lcore_id,
-				info->core[1].type, info->core[1].num);
-		dump_buff(str, info->core[1].id,
-				sizeof(int)*info->core[1].num);
-	}
-}
-
-/* Dump of component information */
-static void
-dump_component_info(const struct spp_component_info *component_info)
-{
-	char str[SPP_NAME_STR_LEN];
-	const struct spp_component_info *component = NULL;
-	int cnt = 0;
-	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
-		component = &component_info[cnt];
-		if (component->type == SPP_COMPONENT_UNUSE)
-			continue;
-
-		RTE_LOG(DEBUG, APP, "component[%d] name=%s, type=%d, "
-				"core=%u, index=%d\n",
-				cnt, component->name, component->type,
-				component->lcore_id, component->component_id);
-
-		sprintf(str, "component[%d] rx=%d", cnt,
-				component->num_rx_port);
-		dump_buff(str, component->rx_ports,
-			sizeof(struct spp_port_info *)*component->num_rx_port);
-
-		sprintf(str, "component[%d] tx=%d", cnt,
-				component->num_tx_port);
-		dump_buff(str, component->tx_ports,
-			sizeof(struct spp_port_info *)*component->num_tx_port);
-	}
-}
-
-/* Dump of interface information */
-static void
-dump_interface_info(const struct iface_info *iface_info)
-{
-	const struct spp_port_info *port = NULL;
-	int cnt = 0;
-	RTE_LOG(DEBUG, APP, "interface phy=%d, vhost=%d, ring=%d\n",
-			iface_info->num_nic,
-			iface_info->num_vhost,
-			iface_info->num_ring);
-	for (cnt = 0; cnt < RTE_MAX_ETHPORTS; cnt++) {
-		port = &iface_info->nic[cnt];
-		if (port->iface_type == UNDEF)
-			continue;
-
-		RTE_LOG(DEBUG, APP, "phy  [%d] type=%d, no=%d, port=%d, "
-				"vid = %u, mac=%08lx(%s)\n",
-				cnt, port->iface_type, port->iface_no,
-				port->dpdk_port,
-				port->class_id.vlantag.vid,
-				port->class_id.mac_addr,
-				port->class_id.mac_addr_str);
-	}
-	for (cnt = 0; cnt < RTE_MAX_ETHPORTS; cnt++) {
-		port = &iface_info->vhost[cnt];
-		if (port->iface_type == UNDEF)
-			continue;
-
-		RTE_LOG(DEBUG, APP, "vhost[%d] type=%d, no=%d, port=%d, "
-				"vid = %u, mac=%08lx(%s)\n",
-				cnt, port->iface_type, port->iface_no,
-				port->dpdk_port,
-				port->class_id.vlantag.vid,
-				port->class_id.mac_addr,
-				port->class_id.mac_addr_str);
-	}
-	for (cnt = 0; cnt < RTE_MAX_ETHPORTS; cnt++) {
-		port = &iface_info->ring[cnt];
-		if (port->iface_type == UNDEF)
-			continue;
-
-		RTE_LOG(DEBUG, APP, "ring [%d] type=%d, no=%d, port=%d, "
-				"vid = %u, mac=%08lx(%s)\n",
-				cnt, port->iface_type, port->iface_no,
-				port->dpdk_port,
-				port->class_id.vlantag.vid,
-				port->class_id.mac_addr,
-				port->class_id.mac_addr_str);
-	}
-}
-
-/* Dump of all management information */
-static void
-dump_all_mng_info(
-		const struct core_mng_info *core,
-		const struct spp_component_info *component,
-		const struct iface_info *interface)
-{
-	if (rte_log_get_global_level() < RTE_LOG_DEBUG)
-		return;
-
-	dump_core_info(core);
-	dump_component_info(component);
-	dump_interface_info(interface);
-}
-
-/* Copy management information */
-static void
-copy_mng_info(
-		struct core_mng_info *dst_core,
-		struct spp_component_info *dst_component,
-		struct iface_info *dst_interface,
-		const struct core_mng_info *src_core,
-		const struct spp_component_info *src_component,
-		const struct iface_info *src_interface,
-		enum copy_mng_flg flg)
-{
-	int upd_index = 0;
-	unsigned int lcore_id = 0;
-
-	switch (flg) {
-	case COPY_MNG_FLG_UPDCOPY:
-		RTE_LCORE_FOREACH_SLAVE(lcore_id) {
-			upd_index = src_core[lcore_id].upd_index;
-			memcpy(&dst_core[lcore_id].core[upd_index],
-					&src_core[lcore_id].core[upd_index],
-					sizeof(struct core_info));
-		}
-		break;
-	default:
-		/*
-		 * Even if the flag is set to None,
-		 * copying of core is necessary,
-		 * so we will treat all copies as default.
-		 */
-		memcpy(dst_core, src_core,
-				sizeof(struct core_mng_info)*RTE_MAX_LCORE);
-		break;
-	}
-
-	memcpy(dst_component, src_component,
-			sizeof(struct spp_component_info)*RTE_MAX_LCORE);
-	memcpy(dst_interface, src_interface,
-			sizeof(struct iface_info));
-}
-
-/* Backup the management information */
-static void
-backup_mng_info(struct cancel_backup_info *backup)
-{
-	dump_all_mng_info(g_core_info, g_component_info, &g_iface_info);
-	copy_mng_info(backup->core, backup->component, &backup->interface,
-			g_core_info, g_component_info, &g_iface_info,
-			COPY_MNG_FLG_ALLCOPY);
-	dump_all_mng_info(backup->core, backup->component, &backup->interface);
-	memset(g_change_core, 0x00, sizeof(g_change_core));
-	memset(g_change_component, 0x00, sizeof(g_change_component));
-}
-
-/**
- * Initialize g_iface_info
- *
- * Clear g_iface_info and set initial value.
- */
-static void
-init_iface_info(void)
-{
-	int port_cnt;  /* increment ether ports */
-	memset(&g_iface_info, 0x00, sizeof(g_iface_info));
-	for (port_cnt = 0; port_cnt < RTE_MAX_ETHPORTS; port_cnt++) {
-		g_iface_info.nic[port_cnt].iface_type = UNDEF;
-		g_iface_info.nic[port_cnt].iface_no   = port_cnt;
-		g_iface_info.nic[port_cnt].dpdk_port  = -1;
-		g_iface_info.nic[port_cnt].class_id.vlantag.vid =
-				ETH_VLAN_ID_MAX;
-		g_iface_info.vhost[port_cnt].iface_type = UNDEF;
-		g_iface_info.vhost[port_cnt].iface_no   = port_cnt;
-		g_iface_info.vhost[port_cnt].dpdk_port  = -1;
-		g_iface_info.vhost[port_cnt].class_id.vlantag.vid =
-				ETH_VLAN_ID_MAX;
-		g_iface_info.ring[port_cnt].iface_type = UNDEF;
-		g_iface_info.ring[port_cnt].iface_no   = port_cnt;
-		g_iface_info.ring[port_cnt].dpdk_port  = -1;
-		g_iface_info.ring[port_cnt].class_id.vlantag.vid =
-				ETH_VLAN_ID_MAX;
-	}
-}
-
-/**
- * Initialize g_component_info
- */
-static void
-init_component_info(void)
-{
-	int cnt;
-	memset(&g_component_info, 0x00, sizeof(g_component_info));
-	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++)
-		g_component_info[cnt].component_id = cnt;
-	memset(g_change_component, 0x00, sizeof(g_change_component));
-}
-
-/**
- * Initialize g_core_info
- */
-static void
-init_core_info(void)
-{
-	int cnt = 0;
-	memset(&g_core_info, 0x00, sizeof(g_core_info));
-	set_all_core_status(SPP_CORE_STOP);
-	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
-		g_core_info[cnt].ref_index = 0;
-		g_core_info[cnt].upd_index = 1;
-	}
-	memset(g_change_core, 0x00, sizeof(g_change_core));
-}
-
-/**
- * Setup port info of port on host
- */
-static int
-set_nic_interface(void)
-{
-	int nic_cnt = 0;
-
-	/* NIC Setting */
-	g_iface_info.num_nic = rte_eth_dev_count_avail();
-	if (g_iface_info.num_nic > RTE_MAX_ETHPORTS)
-		g_iface_info.num_nic = RTE_MAX_ETHPORTS;
-
-	for (nic_cnt = 0; nic_cnt < g_iface_info.num_nic; nic_cnt++) {
-		g_iface_info.nic[nic_cnt].iface_type   = PHY;
-		g_iface_info.nic[nic_cnt].dpdk_port = nic_cnt;
-	}
-
-	return 0;
-}
-
-/**
- * Setup management info for spp_vf
- */
-static int
-init_mng_data(void)
-{
-	/* Initialize interface and core information */
-	init_iface_info();
-	init_core_info();
-	init_component_info();
-
-	int ret_nic = set_nic_interface();
-	if (unlikely(ret_nic != 0))
-		return -1;
-
-	return 0;
-}
-
-#ifdef SPP_RINGLATENCYSTATS_ENABLE
-/**
- * Print statistics of time for packet processing in ring interface
- */
-static void
-print_ring_latency_stats(void)
-{
-	/* Clear screen and move cursor to top left */
-	const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
-	const char clr[] = { 27, '[', '2', 'J', '\0' };
-	printf("%s%s", clr, topLeft);
-
-	int ring_cnt, stats_cnt;
-	struct spp_ringlatencystats_ring_latency_stats stats[RTE_MAX_ETHPORTS];
-	memset(&stats, 0x00, sizeof(stats));
-
-	printf("RING Latency\n");
-	printf(" RING");
-	for (ring_cnt = 0; ring_cnt < RTE_MAX_ETHPORTS; ring_cnt++) {
-		if (g_iface_info.ring[ring_cnt].iface_type == UNDEF)
-			continue;
-
-		spp_ringlatencystats_get_stats(ring_cnt, &stats[ring_cnt]);
-		printf(", %-18d", ring_cnt);
-	}
-	printf("\n");
-
-	for (stats_cnt = 0; stats_cnt < SPP_RINGLATENCYSTATS_STATS_SLOT_COUNT;
-			stats_cnt++) {
-		printf("%3dns", stats_cnt);
-		for (ring_cnt = 0; ring_cnt < RTE_MAX_ETHPORTS; ring_cnt++) {
-			if (g_iface_info.ring[ring_cnt].iface_type == UNDEF)
-				continue;
-
-			printf(", 0x%-16lx", stats[ring_cnt].slot[stats_cnt]);
-		}
-		printf("\n");
-	}
-}
-#endif /* SPP_RINGLATENCYSTATS_ENABLE */
-
-/**
- * Remove sock file
- */
-static void
-del_vhost_sockfile(struct spp_port_info *vhost)
-{
-	int cnt;
-
-	/* Do not remove for if it is running in vhost-client mode. */
-	if (g_startup_param.vhost_client != 0)
-		return;
-
-	for (cnt = 0; cnt < RTE_MAX_ETHPORTS; cnt++) {
-		if (likely(vhost[cnt].iface_type == UNDEF)) {
-			/* Skip removing if it is not using vhost */
-			continue;
-		}
-
-		remove(get_vhost_iface_name(cnt));
-	}
-}
-
-/* Get component type of target core */
-enum spp_component_type
-spp_get_component_type(unsigned int lcore_id)
-{
-	struct core_mng_info *info = &g_core_info[lcore_id];
-	return info->core[info->ref_index].type;
-}
-
 /* Get component type being updated on target core */
 enum spp_component_type
 spp_get_component_type_update(unsigned int lcore_id)
@@ -848,29 +279,6 @@ spp_get_component_type_update(unsigned int lcore_id)
 	return info->core[info->upd_index].type;
 }
 
-/* Get core ID of target component */
-unsigned int
-spp_get_component_core(int component_id)
-{
-	struct spp_component_info *info = &g_component_info[component_id];
-	return info->lcore_id;
-}
-
-/* Get usage area of target core */
-static struct core_info *
-get_core_info(unsigned int lcore_id)
-{
-	struct core_mng_info *info = &g_core_info[lcore_id];
-	return &(info->core[info->ref_index]);
-}
-
-/* Check core index change */
-int
-spp_check_core_index(unsigned int lcore_id)
-{
-	struct core_mng_info *info = &g_core_info[lcore_id];
-	return info->ref_index == info->upd_index;
-}
 
 /* Main process of slave core */
 static int
@@ -891,7 +299,7 @@ slave_main(void *arg __attribute__ ((unused)))
 		if (status != SPP_CORE_FORWARD)
 			continue;
 
-		if (spp_check_core_index(lcore_id)) {
+		if (spp_check_core_update(lcore_id) == SPP_RET_OK) {
 			/* Setting with the flush command trigger. */
 			info->ref_index = (info->upd_index+1) %
 					SPP_INFO_AREA_MAX;
@@ -1102,66 +510,6 @@ spp_check_flush_port(enum port_type iface_type, int iface_no)
 	return port->dpdk_port >= 0;
 }
 
-/*
- * Check if component is using port.
- */
-int
-spp_check_used_port(
-		enum port_type iface_type,
-		int iface_no,
-		enum spp_port_rxtx rxtx)
-{
-	int cnt, port_cnt, max = 0;
-	struct spp_component_info *component = NULL;
-	struct spp_port_info **port_array = NULL;
-	struct spp_port_info *port = get_iface_info(iface_type, iface_no);
-
-	if (port == NULL)
-		return SPP_RET_NG;
-
-	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
-		component = &g_component_info[cnt];
-		if (component->type == SPP_COMPONENT_UNUSE)
-			continue;
-
-		if (rxtx == SPP_PORT_RXTX_RX) {
-			max = component->num_rx_port;
-			port_array = component->rx_ports;
-		} else if (rxtx == SPP_PORT_RXTX_TX) {
-			max = component->num_tx_port;
-			port_array = component->tx_ports;
-		}
-		for (port_cnt = 0; port_cnt < max; port_cnt++) {
-			if (unlikely(port_array[port_cnt] == port))
-				return cnt;
-		}
-	}
-
-	return SPP_RET_NG;
-}
-
-/*
- * Set port change to component.
- */
-static void
-set_component_change_port(struct spp_port_info *port, enum spp_port_rxtx rxtx)
-{
-	int ret = 0;
-	if ((rxtx == SPP_PORT_RXTX_RX) || (rxtx == SPP_PORT_RXTX_ALL)) {
-		ret = spp_check_used_port(port->iface_type, port->iface_no,
-				SPP_PORT_RXTX_RX);
-		if (ret >= 0)
-			g_change_component[ret] = 1;
-	}
-
-	if ((rxtx == SPP_PORT_RXTX_TX) || (rxtx == SPP_PORT_RXTX_ALL)) {
-		ret = spp_check_used_port(port->iface_type, port->iface_no,
-				SPP_PORT_RXTX_TX);
-		if (ret >= 0)
-			g_change_component[ret] = 1;
-	}
-}
-
 int
 spp_update_classifier_table(
 		enum spp_command_action action,
@@ -1247,59 +595,6 @@ spp_update_classifier_table(
 	return SPP_RET_OK;
 }
 
-/* Get free component */
-static int
-get_free_component(void)
-{
-	int cnt = 0;
-	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
-		if (g_component_info[cnt].type == SPP_COMPONENT_UNUSE)
-			return cnt;
-	}
-	return -1;
-}
-
-/* Get name matching component */
-int
-spp_get_component_id(const char *name)
-{
-	int cnt = 0;
-	if (name[0] == '\0')
-		return SPP_RET_NG;
-
-	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
-		if (strcmp(name, g_component_info[cnt].name) == 0)
-			return cnt;
-	}
-	return SPP_RET_NG;
-}
-
-static int
-get_del_core_element(int info, int num, int *array)
-{
-	int cnt;
-	int match = -1;
-	int max = num;
-
-	for (cnt = 0; cnt < max; cnt++) {
-		if (info == array[cnt])
-			match = cnt;
-	}
-
-	if (match < 0)
-		return -1;
-
-	/* Last element is excluded from movement. */
-	max--;
-
-	for (cnt = match; cnt < max; cnt++)
-		array[cnt] = array[cnt+1];
-
-	/* Last element is cleared. */
-	array[cnt] = 0;
-	return 0;
-}
-
 /* Component command to execute it */
 int
 spp_update_component(
@@ -1369,7 +664,7 @@ spp_update_component(
 
 		info = &g_core_info[tmp_lcore_id];
 		core = &info->core[info->upd_index];
-		ret_del = get_del_core_element(component_id,
+		ret_del = del_component_info(component_id,
 				core->num, core->id);
 		if (ret_del >= 0)
 			/* If deleted, decrement number. */
@@ -1390,46 +685,6 @@ spp_update_component(
 	return ret;
 }
 
-static int
-check_port_element(
-		struct spp_port_info *info,
-		int num,
-		struct spp_port_info *array[])
-{
-	int cnt = 0;
-	int match = -1;
-	for (cnt = 0; cnt < num; cnt++) {
-		if (info == array[cnt])
-			match = cnt;
-	}
-	return match;
-}
-
-static int
-get_del_port_element(
-		struct spp_port_info *info,
-		int num,
-		struct spp_port_info *array[])
-{
-	int cnt = 0;
-	int match = -1;
-	int max = num;
-
-	match = check_port_element(info, num, array);
-	if (match < 0)
-		return -1;
-
-	/* Last element is excluded from movement. */
-	max--;
-
-	for (cnt = match; cnt < max; cnt++)
-		array[cnt] = array[cnt+1];
-
-	/* Last element is cleared. */
-	array[cnt] = NULL;
-	return 0;
-}
-
 /* Port add or del to execute it */
 int
 spp_update_port(enum spp_command_action action,
@@ -1523,99 +778,6 @@ spp_update_port(enum spp_command_action action,
 	return ret;
 }
 
-/* Flush initial setting of each interface. */
-static int
-flush_port(void)
-{
-	int ret = 0;
-	int cnt = 0;
-	struct spp_port_info *port = NULL;
-
-	/* Initialize added vhost. */
-	for (cnt = 0; cnt < RTE_MAX_ETHPORTS; cnt++) {
-		port = &g_iface_info.vhost[cnt];
-		if ((port->iface_type != UNDEF) && (port->dpdk_port < 0)) {
-			ret = add_vhost_pmd(port->iface_no,
-					g_startup_param.vhost_client);
-			if (ret < 0)
-				return SPP_RET_NG;
-			port->dpdk_port = ret;
-		}
-	}
-
-	/* Initialize added ring. */
-	for (cnt = 0; cnt < RTE_MAX_ETHPORTS; cnt++) {
-		port = &g_iface_info.ring[cnt];
-		if ((port->iface_type != UNDEF) && (port->dpdk_port < 0)) {
-			ret = add_ring_pmd(port->iface_no);
-			if (ret < 0)
-				return SPP_RET_NG;
-			port->dpdk_port = ret;
-		}
-	}
-	return SPP_RET_OK;
-}
-
-/* Flush changed core. */
-static void
-flush_core(void)
-{
-	int cnt = 0;
-	struct core_mng_info *info = NULL;
-
-	/* Changed core has changed index. */
-	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
-		if (g_change_core[cnt] != 0) {
-			info = &g_core_info[cnt];
-			info->upd_index = info->ref_index;
-		}
-	}
-
-	/* Waiting for changed core change. */
-	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
-		if (g_change_core[cnt] != 0) {
-			info = &g_core_info[cnt];
-			while (likely(info->ref_index == info->upd_index))
-				rte_delay_us_block(SPP_CHANGE_UPDATE_INTERVAL);
-
-			memcpy(&info->core[info->upd_index],
-					&info->core[info->ref_index],
-					sizeof(struct core_info));
-		}
-	}
-}
-
-/* Flush changed component */
-static int
-flush_component(void)
-{
-	int ret = 0;
-	int cnt = 0;
-	struct spp_component_info *component_info = NULL;
-
-	for (cnt = 0; cnt < RTE_MAX_LCORE; cnt++) {
-		if (g_change_component[cnt] == 0)
-			continue;
-
-		component_info = &g_component_info[cnt];
-		spp_port_ability_update(component_info);
-
-		if (component_info->type == SPP_COMPONENT_CLASSIFIER_MAC)
-			ret = spp_classifier_mac_update(component_info);
-		else
-			ret = spp_forward_update(component_info);
-
-		if (unlikely(ret < 0)) {
-			RTE_LOG(ERR, APP, "Flush error. "
-					"( component = %s, type = %d)\n",
-					component_info->name,
-					component_info->type);
-			return SPP_RET_NG;
-		}
-	}
-	return SPP_RET_OK;
-}
-
 /* Flush command to execute it */
 int
 spp_flush(void)
@@ -1776,80 +938,6 @@ spp_get_iface_index(const char *port,
 	return 0;
 }
 
-/**
- * Generate a formatted string of combination from interface type and
- * number and assign to given 'port'
- */
-int spp_format_port_string(char *port, enum port_type iface_type, int iface_no)
-{
-	const char *iface_type_str;
-
-	switch (iface_type) {
-	case PHY:
-		iface_type_str = SPP_IFTYPE_NIC_STR;
-		break;
-	case RING:
-		iface_type_str = SPP_IFTYPE_RING_STR;
-		break;
-	case VHOST:
-		iface_type_str = SPP_IFTYPE_VHOST_STR;
-		break;
-	default:
-		return -1;
-	}
-
-	sprintf(port, "%s:%d", iface_type_str, iface_no);
-
-	return 0;
-}
-
-/**
- * Change mac address of 'aa:bb:cc:dd:ee:ff' to int64 and return it
- */
-int64_t
-spp_change_mac_str_to_int64(const char *mac)
-{
-	int64_t ret_mac = 0;
-	int64_t token_val = 0;
-	int token_cnt = 0;
-	char tmp_mac[SPP_MIN_STR_LEN];
-	char *str = tmp_mac;
-	char *saveptr = NULL;
-	char *endptr = NULL;
-
-	RTE_LOG(DEBUG, APP, "MAC address change. (mac = %s)\n", mac);
-
-	strcpy(tmp_mac, mac);
-	while (1) {
-		/* Split by colon(':') */
-		char *ret_tok = strtok_r(str, ":", &saveptr);
-		if (unlikely(ret_tok == NULL))
-			break;
-
-		/* Check for mal-formatted address */
-		if (unlikely(token_cnt >= ETHER_ADDR_LEN)) {
-			RTE_LOG(ERR, APP, "MAC address format error. "
-					"(mac = %s)\n", mac);
-			return -1;
-		}
-
-		/* Convert string to hex value */
-		int ret_tol = strtol(ret_tok, &endptr, 16);
-		if (unlikely(ret_tok == endptr) || unlikely(*endptr != '\0'))
-			break;
-
-		/* Append separated value to the result */
-		token_val = (int64_t)ret_tol;
-		ret_mac |= token_val << (token_cnt * 8);
-		token_cnt++;
-		str = NULL;
-	}
-
-	RTE_LOG(DEBUG, APP, "MAC address change. (mac = %s => 0x%08lx)\n",
-			 mac, ret_mac);
-	return ret_mac;
-}
-
 /**
  * Return the type of forwarder as a member of enum of spp_component_type
  */
diff --git a/src/vf/spp_vf.h b/src/vf/spp_vf.h
index 8bc5961..5586207 100644
--- a/src/vf/spp_vf.h
+++ b/src/vf/spp_vf.h
@@ -327,28 +327,6 @@ struct spp_iterate_classifier_table_params {
 int spp_iterate_classifier_table(
 		struct spp_iterate_classifier_table_params *params);
 
-/**
- * Get core status
- *
- * @param lcore_id
- *  Logical core ID.
- *
- * @return
- *  Status of specified logical core.
- */
-enum spp_core_status spp_get_core_status(unsigned int lcore_id);
-
-/**
- * Get component type of target core
- *
- * @param lcore_id
- *  Logical core ID.
- *
- * @return
- *  Type of component executed on specified logical core
- */
-enum spp_component_type spp_get_component_type(unsigned int lcore_id);
-
 /**
  * Get component type being updated on target core
  *
@@ -361,39 +339,6 @@ enum spp_component_type spp_get_component_type(unsigned int lcore_id);
  */
 enum spp_component_type spp_get_component_type_update(unsigned int lcore_id);
 
-/**
- * Get core ID of target component
- *
- * @param component_id
- *  unique component ID.
- *
- * @return
- *  Logical core id of specified component.
- */
-unsigned int spp_get_component_core(int component_id);
-
-/**
- * Check core index change
- *
- * @param lcore_id
- *  Logical core ID.
- *
- * @return
- *  True if index has changed.
- */
-int spp_check_core_index(unsigned int lcore_id);
-
-/**
- * Get name matching component ID
- *
- * @param name
- *  Component name.
- *
- * @retval 0~127      Component ID.
- * @retval SPP_RET_NG failed.
- */
-int spp_get_component_id(const char *name);
-
 /**
  * Check mac address used on the port for registering or removing
  *
@@ -440,35 +385,6 @@ int spp_check_added_port(enum port_type iface_type, int iface_no);
  */
 int spp_check_flush_port(enum port_type iface_type, int iface_no);
 
-/**
- * Check if component is using port.
- *
- * @param iface_type
- *  Interface type to be validated.
- * @param iface_no
- *  Interface number to be validated.
- * @param rxtx
- *  tx/rx type to be validated.
- *
- * @retval 0~127      match component ID
- * @retval SPP_RET_NG failed.
- */
-int spp_check_used_port(
-		enum port_type iface_type,
-		int iface_no,
-		enum spp_port_rxtx rxtx);
-
-/**
- * Change mac address string to int64
- *
- * @param mac
- *  Character string of MAC address to be converted.
- *
- * @retval 0< int64 that store mac address
- * @retval -1
- */
-int64_t spp_change_mac_str_to_int64(const char *mac);
-
 /**
  * Get the port number of DPDK.
  *
@@ -500,22 +416,6 @@ int spp_get_iface_index(
 		enum port_type *iface_type,
 		int *iface_no);
 
-/**
- * Format port string form if-type/if-number
- *
- * @param port
- *  Character string expressing the port, e.g. "phy:0","ring:1"
- * @param iface_type
- *  Interface type.
- * @param iface_no
- *  Interface number.
- *
- * @retval 0  succeeded.
- * @retval -1 failed.
- */
-int
-spp_format_port_string(char *port, enum port_type iface_type, int iface_no);
-
 /**
  * Change component type from string to type value.
  *
-- 
2.18.0