examples: fix port mask parsing failure handling
[dpdk.git] / examples / l3fwd-power / main.c
index ae9d3e5..afa38c1 100644 (file)
@@ -1,34 +1,5 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- *   All rights reserved.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in
- *       the documentation and/or other materials provided with the
- *       distribution.
- *     * Neither the name of Intel Corporation nor the names of its
- *       contributors may be used to endorse or promote products derived
- *       from this software without specific prior written permission.
- *
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
  */
 
 #include <stdio.h>
 #include <getopt.h>
 #include <unistd.h>
 #include <signal.h>
+#include <math.h>
 
 #include <rte_common.h>
 #include <rte_byteorder.h>
 #include <rte_log.h>
+#include <rte_malloc.h>
 #include <rte_memory.h>
 #include <rte_memcpy.h>
-#include <rte_memzone.h>
-#include <rte_tailq.h>
 #include <rte_eal.h>
-#include <rte_per_lcore.h>
 #include <rte_launch.h>
 #include <rte_atomic.h>
 #include <rte_cycles.h>
 #include <rte_per_lcore.h>
 #include <rte_branch_prediction.h>
 #include <rte_interrupts.h>
-#include <rte_pci.h>
 #include <rte_random.h>
 #include <rte_debug.h>
 #include <rte_ether.h>
 #include <rte_ethdev.h>
-#include <rte_ring.h>
 #include <rte_mempool.h>
 #include <rte_mbuf.h>
 #include <rte_ip.h>
 #include <rte_string_fns.h>
 #include <rte_timer.h>
 #include <rte_power.h>
+#include <rte_spinlock.h>
+#include <rte_power_empty_poll.h>
+#include <rte_metrics.h>
+#include <rte_telemetry.h>
 
+#include "perf_core.h"
 #include "main.h"
 
 #define RTE_LOGTYPE_L3FWD_POWER RTE_LOGTYPE_USER1
 
 #define MAX_PKT_BURST 32
 
-#define MIN_ZERO_POLL_COUNT 5
+#define MIN_ZERO_POLL_COUNT 10
 
-/* around 100ms at 2 Ghz */
-#define TIMER_RESOLUTION_CYCLES           200000000ULL
 /* 100 ms interval */
 #define TIMER_NUMBER_PER_SECOND           10
+/* (10ms) */
+#define INTERVALS_PER_SECOND             100
 /* 100000 us */
 #define SCALING_PERIOD                    (1000000/TIMER_NUMBER_PER_SECOND)
 #define SCALING_DOWN_TIME_RATIO_THRESHOLD 0.25
 
 #define MEMPOOL_CACHE_SIZE 256
 
-#define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
-
 /*
  * This expression is used to calculate the number of mbufs needed depending on
  * user input, taking into account memory for rx and tx hardware rings, cache
  */
 
 #define NB_MBUF RTE_MAX        ( \
-       (nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT + \
+       (nb_ports*nb_rx_queue*nb_rxd + \
        nb_ports*nb_lcores*MAX_PKT_BURST + \
-       nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT + \
+       nb_ports*n_tx_queue*nb_txd + \
        nb_lcores*MEMPOOL_CACHE_SIZE), \
        (unsigned)8192)
 
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
-
 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 
 #define NB_SOCKETS 8
 /*
  * Configurable number of RX/TX ring descriptors
  */
-#define RTE_TEST_RX_DESC_DEFAULT 128
-#define RTE_TEST_TX_DESC_DEFAULT 512
+#define RTE_TEST_RX_DESC_DEFAULT 1024
+#define RTE_TEST_TX_DESC_DEFAULT 1024
+
+/*
+ * These two thresholds were decided on by running the training algorithm on
+ * a 2.5GHz Xeon. These defaults can be overridden by supplying non-zero values
+ * for the med_threshold and high_threshold parameters on the command line.
+ */
+#define EMPTY_POLL_MED_THRESHOLD 350000UL
+#define EMPTY_POLL_HGH_THRESHOLD 580000UL
+
+#define NUM_TELSTATS RTE_DIM(telstats_strings)
+
 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
 
 /* ethernet addresses of ports */
-static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
+static struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
+
+/* ethernet addresses of ports */
+static rte_spinlock_t locks[RTE_MAX_ETHPORTS];
 
 /* mask of enabled ports */
 static uint32_t enabled_port_mask = 0;
@@ -183,6 +149,60 @@ static uint32_t enabled_port_mask = 0;
 static int promiscuous_on = 0;
 /* NUMA is enabled by default. */
 static int numa_on = 1;
+static bool empty_poll_stop;
+static bool empty_poll_train;
+volatile bool quit_signal;
+static struct  ep_params *ep_params;
+static struct  ep_policy policy;
+static long  ep_med_edpi, ep_hgh_edpi;
+/* timer to update telemetry every 500ms */
+static struct rte_timer telemetry_timer;
+
+/* stats index returned by metrics lib */
+int telstats_index;
+
+struct telstats_name {
+       char name[RTE_ETH_XSTATS_NAME_SIZE];
+};
+
+/* telemetry stats to be reported */
+const struct telstats_name telstats_strings[] = {
+       {"empty_poll"},
+       {"full_poll"},
+       {"busy_percent"}
+};
+
+/* core busyness in percentage */
+enum busy_rate {
+       ZERO = 0,
+       PARTIAL = 50,
+       FULL = 100
+};
+
+/* reference poll count to measure core busyness */
+#define DEFAULT_COUNT 10000
+/*
+ * reference CYCLES to be used to
+ * measure core busyness based on poll count
+ */
+#define MIN_CYCLES  1500000ULL
+#define MAX_CYCLES 22000000ULL
+
+/* (500ms) */
+#define TELEMETRY_INTERVALS_PER_SEC 2
+
+static int parse_ptype; /**< Parse packet type using rx callback, and */
+                       /**< disabled by default */
+
+enum appmode {
+       APP_MODE_DEFAULT = 0,
+       APP_MODE_LEGACY,
+       APP_MODE_EMPTY_POLL,
+       APP_MODE_TELEMETRY,
+       APP_MODE_INTERRUPT
+};
+
+enum appmode app_mode;
 
 enum freq_scale_hint_t
 {
@@ -192,13 +212,8 @@ enum freq_scale_hint_t
        FREQ_HIGHEST  =       2
 };
 
-struct mbuf_table {
-       uint16_t len;
-       struct rte_mbuf *m_table[MAX_PKT_BURST];
-};
-
 struct lcore_rx_queue {
-       uint8_t port_id;
+       uint16_t port_id;
        uint8_t queue_id;
        enum freq_scale_hint_t freq_up_hint;
        uint32_t zero_rx_packet_count;
@@ -209,14 +224,10 @@ struct lcore_rx_queue {
 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
 #define MAX_RX_QUEUE_PER_PORT 128
 
-#define MAX_LCORE_PARAMS 1024
-struct lcore_params {
-       uint8_t port_id;
-       uint8_t queue_id;
-       uint8_t lcore_id;
-} __rte_cache_aligned;
+#define MAX_RX_QUEUE_INTERRUPT_PER_PORT 16
 
-static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
+
+struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
 static struct lcore_params lcore_params_array_default[] = {
        {0, 0, 2},
        {0, 1, 2},
@@ -229,50 +240,25 @@ static struct lcore_params lcore_params_array_default[] = {
        {3, 1, 3},
 };
 
-static struct lcore_params * lcore_params = lcore_params_array_default;
-static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
-                               sizeof(lcore_params_array_default[0]);
+struct lcore_params *lcore_params = lcore_params_array_default;
+uint16_t nb_lcore_params = RTE_DIM(lcore_params_array_default);
 
 static struct rte_eth_conf port_conf = {
        .rxmode = {
-               .mq_mode        = ETH_MQ_RX_RSS,
-               .max_rx_pkt_len = ETHER_MAX_LEN,
+               .mq_mode        = ETH_MQ_RX_RSS,
+               .max_rx_pkt_len = RTE_ETHER_MAX_LEN,
                .split_hdr_size = 0,
-               .header_split   = 0, /**< Header Split disabled */
-               .hw_ip_checksum = 1, /**< IP checksum offload enabled */
-               .hw_vlan_filter = 0, /**< VLAN filtering disabled */
-               .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
-               .hw_strip_crc   = 0, /**< CRC stripped by hardware */
+               .offloads = DEV_RX_OFFLOAD_CHECKSUM,
        },
        .rx_adv_conf = {
                .rss_conf = {
                        .rss_key = NULL,
-                       .rss_hf = ETH_RSS_IP,
+                       .rss_hf = ETH_RSS_UDP,
                },
        },
        .txmode = {
-               .mq_mode = ETH_DCB_NONE,
-       },
-};
-
-static const struct rte_eth_rxconf rx_conf = {
-       .rx_thresh = {
-               .pthresh = RX_PTHRESH,
-               .hthresh = RX_HTHRESH,
-               .wthresh = RX_WTHRESH,
-       },
-       .rx_free_thresh = 32,
-};
-
-static const struct rte_eth_txconf tx_conf = {
-       .tx_thresh = {
-               .pthresh = TX_PTHRESH,
-               .hthresh = TX_HTHRESH,
-               .wthresh = TX_WTHRESH,
-       },
-       .tx_free_thresh = 0, /* Use PMD default values */
-       .tx_rs_thresh = 0, /* Use PMD default values */
-       .txq_flags = 0x0,
+               .mq_mode = ETH_MQ_TX_NONE,
+       }
 };
 
 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
@@ -280,7 +266,7 @@ static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
 
 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 
-#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+#ifdef RTE_ARCH_X86
 #include <rte_hash_crc.h>
 #define DEFAULT_HASH_FUNC       rte_hash_crc
 #else
@@ -294,7 +280,7 @@ struct ipv4_5tuple {
        uint16_t port_dst;
        uint16_t port_src;
        uint8_t  proto;
-} __attribute__((__packed__));
+} __rte_packed;
 
 struct ipv6_5tuple {
        uint8_t  ip_dst[IPV6_ADDR_LEN];
@@ -302,7 +288,7 @@ struct ipv6_5tuple {
        uint16_t port_dst;
        uint16_t port_src;
        uint8_t  proto;
-} __attribute__((__packed__));
+} __rte_packed;
 
 struct ipv4_l3fwd_route {
        struct ipv4_5tuple key;
@@ -315,10 +301,10 @@ struct ipv6_l3fwd_route {
 };
 
 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
-       {{IPv4(100,10,0,1), IPv4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
-       {{IPv4(100,20,0,2), IPv4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
-       {{IPv4(100,30,0,3), IPv4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
-       {{IPv4(100,40,0,4), IPv4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
+       {{RTE_IPV4(100,10,0,1), RTE_IPV4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
+       {{RTE_IPV4(100,20,0,2), RTE_IPV4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
+       {{RTE_IPV4(100,30,0,3), RTE_IPV4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
+       {{RTE_IPV4(100,40,0,4), RTE_IPV4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
 };
 
 static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
@@ -339,14 +325,8 @@ static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
 
 #define L3FWD_HASH_ENTRIES     1024
 
-#define IPV4_L3FWD_NUM_ROUTES \
-       (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
-
-#define IPV6_L3FWD_NUM_ROUTES \
-       (sizeof(ipv6_l3fwd_route_array) / sizeof(ipv6_l3fwd_route_array[0]))
-
-static uint8_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
-static uint8_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
+static uint16_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
+static uint16_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 #endif
 
 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
@@ -357,19 +337,16 @@ struct ipv4_l3fwd_route {
 };
 
 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
-       {IPv4(1,1,1,0), 24, 0},
-       {IPv4(2,1,1,0), 24, 1},
-       {IPv4(3,1,1,0), 24, 2},
-       {IPv4(4,1,1,0), 24, 3},
-       {IPv4(5,1,1,0), 24, 4},
-       {IPv4(6,1,1,0), 24, 5},
-       {IPv4(7,1,1,0), 24, 6},
-       {IPv4(8,1,1,0), 24, 7},
+       {RTE_IPV4(1,1,1,0), 24, 0},
+       {RTE_IPV4(2,1,1,0), 24, 1},
+       {RTE_IPV4(3,1,1,0), 24, 2},
+       {RTE_IPV4(4,1,1,0), 24, 3},
+       {RTE_IPV4(5,1,1,0), 24, 4},
+       {RTE_IPV4(6,1,1,0), 24, 5},
+       {RTE_IPV4(7,1,1,0), 24, 6},
+       {RTE_IPV4(8,1,1,0), 24, 7},
 };
 
-#define IPV4_L3FWD_NUM_ROUTES \
-       (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
-
 #define IPV4_L3FWD_LPM_MAX_RULES     1024
 
 typedef struct rte_lpm lookup_struct_t;
@@ -379,8 +356,10 @@ static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
 struct lcore_conf {
        uint16_t n_rx_queue;
        struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
+       uint16_t n_tx_port;
+       uint16_t tx_port_id[RTE_MAX_ETHPORTS];
        uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
-       struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
+       struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
        lookup_struct_t * ipv4_lookup_struct;
        lookup_struct_t * ipv6_lookup_struct;
 } __rte_cache_aligned;
@@ -396,7 +375,26 @@ struct lcore_stats {
        uint64_t nb_rx_processed;
        /* total iterations looped recently */
        uint64_t nb_iteration_looped;
-       uint32_t padding[9];
+       /*
+        * Represents empty and non empty polls
+        * of rte_eth_rx_burst();
+        * ep_nep[0] holds non empty polls
+        * i.e. 0 < nb_rx <= MAX_BURST
+        * ep_nep[1] holds empty polls.
+        * i.e. nb_rx == 0
+        */
+       uint64_t ep_nep[2];
+       /*
+        * Represents full and empty+partial
+        * polls of rte_eth_rx_burst();
+        * ep_nep[0] holds empty+partial polls.
+        * i.e. 0 <= nb_rx < MAX_BURST
+        * ep_nep[1] holds full polls
+        * i.e. nb_rx == MAX_BURST
+        */
+       uint64_t fp_nfp[2];
+       enum busy_rate br;
+       rte_spinlock_t telemetry_lock;
 } __rte_cache_aligned;
 
 static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned;
@@ -405,36 +403,35 @@ static struct rte_timer power_timers[RTE_MAX_LCORE];
 
 static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count);
 static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \
-                       unsigned lcore_id, uint8_t port_id, uint16_t queue_id);
+               unsigned int lcore_id, uint16_t port_id, uint16_t queue_id);
+
+
+/*
+ * These defaults are using the max frequency index (1), a medium index (9)
+ * and a typical low frequency index (14). These can be adjusted to use
+ * different indexes using the relevant command line parameters.
+ */
+static uint8_t  freq_tlb[] = {14, 9, 1};
+
+static int is_done(void)
+{
+       return quit_signal;
+}
 
 /* exit signal handler */
 static void
 signal_exit_now(int sigtype)
 {
-       unsigned lcore_id;
-       int ret;
-
-       if (sigtype == SIGINT) {
-               for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
-                       if (rte_lcore_is_enabled(lcore_id) == 0)
-                               continue;
 
-                       /* init power management library */
-                       ret = rte_power_exit(lcore_id);
-                       if (ret)
-                               rte_exit(EXIT_FAILURE, "Power management "
-                                       "library de-initialization failed on "
-                                                       "core%u\n", lcore_id);
-               }
-       }
+       if (sigtype == SIGINT)
+               quit_signal = true;
 
-       rte_exit(EXIT_SUCCESS, "User forced exit\n");
 }
 
 /*  Freqency scale down timer callback */
 static void
-power_timer_cb(__attribute__((unused)) struct rte_timer *tim,
-                         __attribute__((unused)) void *arg)
+power_timer_cb(__rte_unused struct rte_timer *tim,
+                         __rte_unused void *arg)
 {
        uint64_t hz;
        float sleep_time_ratio;
@@ -443,19 +440,22 @@ power_timer_cb(__attribute__((unused)) struct rte_timer *tim,
        /* accumulate total execution time in us when callback is invoked */
        sleep_time_ratio = (float)(stats[lcore_id].sleep_time) /
                                        (float)SCALING_PERIOD;
-
        /**
         * check whether need to scale down frequency a step if it sleep a lot.
         */
-       if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD)
-               rte_power_freq_down(lcore_id);
+       if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD) {
+               if (rte_power_freq_down)
+                       rte_power_freq_down(lcore_id);
+       }
        else if ( (unsigned)(stats[lcore_id].nb_rx_processed /
-               stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST)
+               stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST) {
                /**
                 * scale down a step if average packet per iteration less
                 * than expectation.
                 */
-               rte_power_freq_down(lcore_id);
+               if (rte_power_freq_down)
+                       rte_power_freq_down(lcore_id);
+       }
 
        /**
         * initialize another timer according to current frequency to ensure
@@ -471,62 +471,32 @@ power_timer_cb(__attribute__((unused)) struct rte_timer *tim,
        stats[lcore_id].sleep_time = 0;
 }
 
-/* Send burst of packets on an output interface */
-static inline int
-send_burst(struct lcore_conf *qconf, uint16_t n, uint8_t port)
-{
-       struct rte_mbuf **m_table;
-       int ret;
-       uint16_t queueid;
-
-       queueid = qconf->tx_queue_id[port];
-       m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
-
-       ret = rte_eth_tx_burst(port, queueid, m_table, n);
-       if (unlikely(ret < n)) {
-               do {
-                       rte_pktmbuf_free(m_table[ret]);
-               } while (++ret < n);
-       }
-
-       return 0;
-}
-
 /* Enqueue a single packet, and send burst if queue is filled */
 static inline int
-send_single_packet(struct rte_mbuf *m, uint8_t port)
+send_single_packet(struct rte_mbuf *m, uint16_t port)
 {
        uint32_t lcore_id;
-       uint16_t len;
        struct lcore_conf *qconf;
 
        lcore_id = rte_lcore_id();
-
        qconf = &lcore_conf[lcore_id];
-       len = qconf->tx_mbufs[port].len;
-       qconf->tx_mbufs[port].m_table[len] = m;
-       len++;
-
-       /* enough pkts to be sent */
-       if (unlikely(len == MAX_PKT_BURST)) {
-               send_burst(qconf, MAX_PKT_BURST, port);
-               len = 0;
-       }
 
-       qconf->tx_mbufs[port].len = len;
+       rte_eth_tx_buffer(port, qconf->tx_queue_id[port],
+                       qconf->tx_buffer[port], m);
+
        return 0;
 }
 
 #ifdef DO_RFC_1812_CHECKS
 static inline int
-is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
+is_valid_ipv4_pkt(struct rte_ipv4_hdr *pkt, uint32_t link_len)
 {
        /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
        /*
         * 1. The packet length reported by the Link Layer must be large
         * enough to hold the minimum length legal IP datagram (20 bytes).
         */
-       if (link_len < sizeof(struct ipv4_hdr))
+       if (link_len < sizeof(struct rte_ipv4_hdr))
                return -1;
 
        /* 2. The IP checksum must be correct. */
@@ -551,7 +521,7 @@ is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
         * datagram header, whose length is specified in the IP header length
         * field.
         */
-       if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
+       if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct rte_ipv4_hdr))
                return -5;
 
        return 0;
@@ -575,13 +545,13 @@ print_ipv6_key(struct ipv6_5tuple key)
                key.port_dst, key.port_src, key.proto);
 }
 
-static inline uint8_t
-get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
+static inline uint16_t
+get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid,
                lookup_struct_t * ipv4_l3fwd_lookup_struct)
 {
        struct ipv4_5tuple key;
-       struct tcp_hdr *tcp;
-       struct udp_hdr *udp;
+       struct rte_tcp_hdr *tcp;
+       struct rte_udp_hdr *udp;
        int ret = 0;
 
        key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
@@ -590,15 +560,15 @@ get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
 
        switch (ipv4_hdr->next_proto_id) {
        case IPPROTO_TCP:
-               tcp = (struct tcp_hdr *)((unsigned char *)ipv4_hdr +
-                                       sizeof(struct ipv4_hdr));
+               tcp = (struct rte_tcp_hdr *)((unsigned char *)ipv4_hdr +
+                                       sizeof(struct rte_ipv4_hdr));
                key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
                key.port_src = rte_be_to_cpu_16(tcp->src_port);
                break;
 
        case IPPROTO_UDP:
-               udp = (struct udp_hdr *)((unsigned char *)ipv4_hdr +
-                                       sizeof(struct ipv4_hdr));
+               udp = (struct rte_udp_hdr *)((unsigned char *)ipv4_hdr +
+                                       sizeof(struct rte_ipv4_hdr));
                key.port_dst = rte_be_to_cpu_16(udp->dst_port);
                key.port_src = rte_be_to_cpu_16(udp->src_port);
                break;
@@ -611,16 +581,16 @@ get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
 
        /* Find destination port */
        ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
-       return (uint8_t)((ret < 0)? portid : ipv4_l3fwd_out_if[ret]);
+       return ((ret < 0) ? portid : ipv4_l3fwd_out_if[ret]);
 }
 
-static inline uint8_t
-get_ipv6_dst_port(struct ipv6_hdr *ipv6_hdr,  uint8_t portid,
+static inline uint16_t
+get_ipv6_dst_port(struct rte_ipv6_hdr *ipv6_hdr, uint16_t portid,
                        lookup_struct_t *ipv6_l3fwd_lookup_struct)
 {
        struct ipv6_5tuple key;
-       struct tcp_hdr *tcp;
-       struct udp_hdr *udp;
+       struct rte_tcp_hdr *tcp;
+       struct rte_udp_hdr *udp;
        int ret = 0;
 
        memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN);
@@ -630,15 +600,15 @@ get_ipv6_dst_port(struct ipv6_hdr *ipv6_hdr,  uint8_t portid,
 
        switch (ipv6_hdr->proto) {
        case IPPROTO_TCP:
-               tcp = (struct tcp_hdr *)((unsigned char *) ipv6_hdr +
-                                       sizeof(struct ipv6_hdr));
+               tcp = (struct rte_tcp_hdr *)((unsigned char *) ipv6_hdr +
+                                       sizeof(struct rte_ipv6_hdr));
                key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
                key.port_src = rte_be_to_cpu_16(tcp->src_port);
                break;
 
        case IPPROTO_UDP:
-               udp = (struct udp_hdr *)((unsigned char *) ipv6_hdr +
-                                       sizeof(struct ipv6_hdr));
+               udp = (struct rte_udp_hdr *)((unsigned char *) ipv6_hdr +
+                                       sizeof(struct rte_ipv6_hdr));
                key.port_dst = rte_be_to_cpu_16(udp->dst_port);
                key.port_src = rte_be_to_cpu_16(udp->src_port);
                break;
@@ -651,43 +621,85 @@ get_ipv6_dst_port(struct ipv6_hdr *ipv6_hdr,  uint8_t portid,
 
        /* Find destination port */
        ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
-       return (uint8_t)((ret < 0)? portid : ipv6_l3fwd_out_if[ret]);
+       return ((ret < 0) ? portid : ipv6_l3fwd_out_if[ret]);
 }
 #endif
 
 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
-static inline uint8_t
-get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
+static inline uint16_t
+get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid,
                lookup_struct_t *ipv4_l3fwd_lookup_struct)
 {
-       uint8_t next_hop;
+       uint32_t next_hop;
 
-       return (uint8_t) ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
+       return ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
                        rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
                        next_hop : portid);
 }
 #endif
 
 static inline void
-l3fwd_simple_forward(struct rte_mbuf *m, uint8_t portid,
+parse_ptype_one(struct rte_mbuf *m)
+{
+       struct rte_ether_hdr *eth_hdr;
+       uint32_t packet_type = RTE_PTYPE_UNKNOWN;
+       uint16_t ether_type;
+
+       eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
+       ether_type = eth_hdr->ether_type;
+       if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4))
+               packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
+       else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6))
+               packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
+
+       m->packet_type = packet_type;
+}
+
+static uint16_t
+cb_parse_ptype(uint16_t port __rte_unused, uint16_t queue __rte_unused,
+              struct rte_mbuf *pkts[], uint16_t nb_pkts,
+              uint16_t max_pkts __rte_unused,
+              void *user_param __rte_unused)
+{
+       unsigned int i;
+
+       for (i = 0; i < nb_pkts; ++i)
+               parse_ptype_one(pkts[i]);
+
+       return nb_pkts;
+}
+
+static int
+add_cb_parse_ptype(uint16_t portid, uint16_t queueid)
+{
+       printf("Port %d: softly parse packet type info\n", portid);
+       if (rte_eth_add_rx_callback(portid, queueid, cb_parse_ptype, NULL))
+               return 0;
+
+       printf("Failed to add rx callback: port=%d\n", portid);
+       return -1;
+}
+
+static inline void
+l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid,
                                struct lcore_conf *qconf)
 {
-       struct ether_hdr *eth_hdr;
-       struct ipv4_hdr *ipv4_hdr;
+       struct rte_ether_hdr *eth_hdr;
+       struct rte_ipv4_hdr *ipv4_hdr;
        void *d_addr_bytes;
-       uint8_t dst_port;
+       uint16_t dst_port;
 
-       eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
+       eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
 
-       if (m->ol_flags & PKT_RX_IPV4_HDR) {
+       if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
                /* Handle IPv4 headers.*/
                ipv4_hdr =
-                       (struct ipv4_hdr *)(rte_pktmbuf_mtod(m, unsigned char*)
-                                               + sizeof(struct ether_hdr));
+                       rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
+                                               sizeof(struct rte_ether_hdr));
 
 #ifdef DO_RFC_1812_CHECKS
                /* Check to make sure the packet is valid (RFC1812) */
-               if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt.pkt_len) < 0) {
+               if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
                        rte_pktmbuf_free(m);
                        return;
                }
@@ -711,18 +723,18 @@ l3fwd_simple_forward(struct rte_mbuf *m, uint8_t portid,
 #endif
 
                /* src addr */
-               ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
+               rte_ether_addr_copy(&ports_eth_addr[dst_port],
+                               &eth_hdr->s_addr);
 
                send_single_packet(m, dst_port);
-       }
-       else {
+       } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
                /* Handle IPv6 headers.*/
 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
-               struct ipv6_hdr *ipv6_hdr;
+               struct rte_ipv6_hdr *ipv6_hdr;
 
                ipv6_hdr =
-                       (struct ipv6_hdr *)(rte_pktmbuf_mtod(m, unsigned char*)
-                                               + sizeof(struct ether_hdr));
+                       rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
+                                               sizeof(struct rte_ether_hdr));
 
                dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
                                        qconf->ipv6_lookup_struct);
@@ -737,42 +749,41 @@ l3fwd_simple_forward(struct rte_mbuf *m, uint8_t portid,
                        0x000000000002 + ((uint64_t)dst_port << 40);
 
                /* src addr */
-               ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
+               rte_ether_addr_copy(&ports_eth_addr[dst_port],
+                               &eth_hdr->s_addr);
 
                send_single_packet(m, dst_port);
 #else
                /* We don't currently handle IPv6 packets in LPM mode. */
                rte_pktmbuf_free(m);
 #endif
-       }
+       } else
+               rte_pktmbuf_free(m);
 
 }
 
-#define SLEEP_GEAR1_THRESHOLD            100
-#define SLEEP_GEAR2_THRESHOLD            1000
+#define MINIMUM_SLEEP_TIME         1
+#define SUSPEND_THRESHOLD          300
 
 static inline uint32_t
 power_idle_heuristic(uint32_t zero_rx_packet_count)
 {
-       /* If zero count is less than 100, use it as the sleep time in us */
-       if (zero_rx_packet_count < SLEEP_GEAR1_THRESHOLD)
-               return zero_rx_packet_count;
-       /* If zero count is less than 1000, sleep time should be 100 us */
-       else if ((zero_rx_packet_count >= SLEEP_GEAR1_THRESHOLD) &&
-                       (zero_rx_packet_count < SLEEP_GEAR2_THRESHOLD))
-               return SLEEP_GEAR1_THRESHOLD;
-       /* If zero count is greater than 1000, sleep time should be 1000 us */
-       else if (zero_rx_packet_count >= SLEEP_GEAR2_THRESHOLD)
-               return SLEEP_GEAR2_THRESHOLD;
-
-       return 0;
+       /* If zero count is less than 100,  sleep 1us */
+       if (zero_rx_packet_count < SUSPEND_THRESHOLD)
+               return MINIMUM_SLEEP_TIME;
+       /* If zero count is less than 1000, sleep 100 us which is the
+               minimum latency switching from C3/C6 to C0
+       */
+       else
+               return SUSPEND_THRESHOLD;
 }
 
 static inline enum freq_scale_hint_t
 power_freq_scaleup_heuristic(unsigned lcore_id,
-                            uint8_t port_id,
+                            uint16_t port_id,
                             uint16_t queue_id)
 {
+       uint32_t rxq_count = rte_eth_rx_queue_count(port_id, queue_id);
 /**
  * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
  * per iteration
@@ -784,15 +795,12 @@ power_freq_scaleup_heuristic(unsigned lcore_id,
 #define FREQ_UP_TREND2_ACC   100
 #define FREQ_UP_THRESHOLD    10000
 
-       if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
-                       FREQ_GEAR3_RX_PACKET_THRESHOLD) > 0)) {
+       if (likely(rxq_count > FREQ_GEAR3_RX_PACKET_THRESHOLD)) {
                stats[lcore_id].trend = 0;
                return FREQ_HIGHEST;
-       } else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
-                       FREQ_GEAR2_RX_PACKET_THRESHOLD) > 0))
+       } else if (likely(rxq_count > FREQ_GEAR2_RX_PACKET_THRESHOLD))
                stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
-       else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
-                       FREQ_GEAR1_RX_PACKET_THRESHOLD) > 0))
+       else if (likely(rxq_count > FREQ_GEAR1_RX_PACKET_THRESHOLD))
                stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
 
        if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
@@ -803,24 +811,115 @@ power_freq_scaleup_heuristic(unsigned lcore_id,
        return FREQ_CURRENT;
 }
 
-/* main processing loop */
+/**
+ * force polling thread sleep until one-shot rx interrupt triggers
+ * @param port_id
+ *  Port id.
+ * @param queue_id
+ *  Rx queue id.
+ * @return
+ *  0 on success
+ */
 static int
-main_loop(__attribute__((unused)) void *dummy)
+sleep_until_rx_interrupt(int num)
+{
+       /*
+        * we want to track when we are woken up by traffic so that we can go
+        * back to sleep again without log spamming.
+        */
+       static bool timeout;
+       struct rte_epoll_event event[num];
+       int n, i;
+       uint16_t port_id;
+       uint8_t queue_id;
+       void *data;
+
+       if (!timeout) {
+               RTE_LOG(INFO, L3FWD_POWER,
+                               "lcore %u sleeps until interrupt triggers\n",
+                               rte_lcore_id());
+       }
+
+       n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, 10);
+       for (i = 0; i < n; i++) {
+               data = event[i].epdata.data;
+               port_id = ((uintptr_t)data) >> CHAR_BIT;
+               queue_id = ((uintptr_t)data) &
+                       RTE_LEN2MASK(CHAR_BIT, uint8_t);
+               RTE_LOG(INFO, L3FWD_POWER,
+                       "lcore %u is waked up from rx interrupt on"
+                       " port %d queue %d\n",
+                       rte_lcore_id(), port_id, queue_id);
+       }
+       timeout = n == 0;
+
+       return 0;
+}
+
+static void turn_on_off_intr(struct lcore_conf *qconf, bool on)
+{
+       int i;
+       struct lcore_rx_queue *rx_queue;
+       uint8_t queue_id;
+       uint16_t port_id;
+
+       for (i = 0; i < qconf->n_rx_queue; ++i) {
+               rx_queue = &(qconf->rx_queue_list[i]);
+               port_id = rx_queue->port_id;
+               queue_id = rx_queue->queue_id;
+
+               rte_spinlock_lock(&(locks[port_id]));
+               if (on)
+                       rte_eth_dev_rx_intr_enable(port_id, queue_id);
+               else
+                       rte_eth_dev_rx_intr_disable(port_id, queue_id);
+               rte_spinlock_unlock(&(locks[port_id]));
+       }
+}
+
+static int event_register(struct lcore_conf *qconf)
+{
+       struct lcore_rx_queue *rx_queue;
+       uint8_t queueid;
+       uint16_t portid;
+       uint32_t data;
+       int ret;
+       int i;
+
+       for (i = 0; i < qconf->n_rx_queue; ++i) {
+               rx_queue = &(qconf->rx_queue_list[i]);
+               portid = rx_queue->port_id;
+               queueid = rx_queue->queue_id;
+               data = portid << CHAR_BIT | queueid;
+
+               ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid,
+                                               RTE_EPOLL_PER_THREAD,
+                                               RTE_INTR_EVENT_ADD,
+                                               (void *)((uintptr_t)data));
+               if (ret)
+                       return ret;
+       }
+
+       return 0;
+}
+
+/* main processing loop */
+static int main_intr_loop(__rte_unused void *dummy)
 {
        struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
-       unsigned lcore_id;
+       unsigned int lcore_id;
        uint64_t prev_tsc, diff_tsc, cur_tsc;
-       uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
        int i, j, nb_rx;
-       uint8_t portid, queueid;
+       uint8_t queueid;
+       uint16_t portid;
        struct lcore_conf *qconf;
        struct lcore_rx_queue *rx_queue;
-       enum freq_scale_hint_t lcore_scaleup_hint;
-
        uint32_t lcore_rx_idle_count = 0;
        uint32_t lcore_idle_hint = 0;
+       int intr_en = 0;
 
-       const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
+       const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
+                                  US_PER_S * BURST_TX_DRAIN_US;
 
        prev_tsc = 0;
 
@@ -828,58 +927,51 @@ main_loop(__attribute__((unused)) void *dummy)
        qconf = &lcore_conf[lcore_id];
 
        if (qconf->n_rx_queue == 0) {
-               RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
+               RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
+                               lcore_id);
                return 0;
        }
 
-       RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);
+       RTE_LOG(INFO, L3FWD_POWER, "entering main interrupt loop on lcore %u\n",
+                       lcore_id);
 
        for (i = 0; i < qconf->n_rx_queue; i++) {
-
                portid = qconf->rx_queue_list[i].port_id;
                queueid = qconf->rx_queue_list[i].queue_id;
-               RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%hhu "
-                       "rxqueueid=%hhu\n", lcore_id, portid, queueid);
+               RTE_LOG(INFO, L3FWD_POWER,
+                               " -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
+                               lcore_id, portid, queueid);
        }
 
-       while (1) {
+       /* add into event wait list */
+       if (event_register(qconf) == 0)
+               intr_en = 1;
+       else
+               RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
+
+       while (!is_done()) {
                stats[lcore_id].nb_iteration_looped++;
 
                cur_tsc = rte_rdtsc();
-               cur_tsc_power = cur_tsc;
 
                /*
                 * TX burst queue drain
                 */
                diff_tsc = cur_tsc - prev_tsc;
                if (unlikely(diff_tsc > drain_tsc)) {
-
-                       /*
-                        * This could be optimized (use queueid instead of
-                        * portid), but it is not called so often
-                        */
-                       for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
-                               if (qconf->tx_mbufs[portid].len == 0)
-                                       continue;
-                               send_burst(&lcore_conf[lcore_id],
-                                       qconf->tx_mbufs[portid].len,
-                                       portid);
-                               qconf->tx_mbufs[portid].len = 0;
+                       for (i = 0; i < qconf->n_tx_port; ++i) {
+                               portid = qconf->tx_port_id[i];
+                               rte_eth_tx_buffer_flush(portid,
+                                               qconf->tx_queue_id[portid],
+                                               qconf->tx_buffer[portid]);
                        }
-
                        prev_tsc = cur_tsc;
                }
 
-               diff_tsc_power = cur_tsc_power - prev_tsc_power;
-               if (diff_tsc_power > TIMER_RESOLUTION_CYCLES) {
-                       rte_timer_manage();
-                       prev_tsc_power = cur_tsc_power;
-               }
-
+start_rx:
                /*
                 * Read packet from RX queues
                 */
-               lcore_scaleup_hint = FREQ_CURRENT;
                lcore_rx_idle_count = 0;
                for (i = 0; i < qconf->n_rx_queue; ++i) {
                        rx_queue = &(qconf->rx_queue_list[i]);
@@ -888,7 +980,8 @@ main_loop(__attribute__((unused)) void *dummy)
                        queueid = rx_queue->queue_id;
 
                        nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
-                                                               MAX_PKT_BURST);
+                                       MAX_PKT_BURST);
+
                        stats[lcore_id].nb_rx_processed += nb_rx;
                        if (unlikely(nb_rx == 0)) {
                                /**
@@ -899,25 +992,15 @@ main_loop(__attribute__((unused)) void *dummy)
                                rx_queue->zero_rx_packet_count++;
 
                                if (rx_queue->zero_rx_packet_count <=
-                                                       MIN_ZERO_POLL_COUNT)
+                                               MIN_ZERO_POLL_COUNT)
                                        continue;
 
-                               rx_queue->idle_hint = power_idle_heuristic(\
-                                       rx_queue->zero_rx_packet_count);
+                               rx_queue->idle_hint = power_idle_heuristic(
+                                               rx_queue->zero_rx_packet_count);
                                lcore_rx_idle_count++;
                        } else {
                                rx_queue->zero_rx_packet_count = 0;
-
-                               /**
-                                * do not scale up frequency immediately as
-                                * user to kernel space communication is costly
-                                * which might impact packet I/O for received
-                                * packets.
-                                */
-                               rx_queue->freq_up_hint =
-                                       power_freq_scaleup_heuristic(lcore_id,
-                                                       portid, queueid);
-                       }
+                       }
 
                        /* Prefetch first packets */
                        for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
@@ -927,121 +1010,548 @@ main_loop(__attribute__((unused)) void *dummy)
 
                        /* Prefetch and forward already prefetched packets */
                        for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
-                               rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
-                                               j + PREFETCH_OFFSET], void *));
-                               l3fwd_simple_forward(pkts_burst[j], portid,
-                                                               qconf);
+                               rte_prefetch0(rte_pktmbuf_mtod(
+                                               pkts_burst[j + PREFETCH_OFFSET],
+                                               void *));
+                               l3fwd_simple_forward(
+                                               pkts_burst[j], portid, qconf);
                        }
 
                        /* Forward remaining prefetched packets */
                        for (; j < nb_rx; j++) {
-                               l3fwd_simple_forward(pkts_burst[j], portid,
-                                                               qconf);
+                               l3fwd_simple_forward(
+                                               pkts_burst[j], portid, qconf);
                        }
                }
 
-               if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
-                       for (i = 1, lcore_scaleup_hint =
-                               qconf->rx_queue_list[0].freq_up_hint;
-                                       i < qconf->n_rx_queue; ++i) {
-                               rx_queue = &(qconf->rx_queue_list[i]);
-                               if (rx_queue->freq_up_hint >
-                                               lcore_scaleup_hint)
-                                       lcore_scaleup_hint =
-                                               rx_queue->freq_up_hint;
-                       }
-
-                       if (lcore_scaleup_hint == FREQ_HIGHEST)
-                               rte_power_freq_max(lcore_id);
-                       else if (lcore_scaleup_hint == FREQ_HIGHER)
-                               rte_power_freq_up(lcore_id);
-               } else {
+               if (unlikely(lcore_rx_idle_count == qconf->n_rx_queue)) {
                        /**
                         * All Rx queues empty in recent consecutive polls,
                         * sleep in a conservative manner, meaning sleep as
-                        * less as possible.
-                        */
-                       for (i = 1, lcore_idle_hint =
-                               qconf->rx_queue_list[0].idle_hint;
+                        * less as possible.
+                        */
+                       for (i = 1,
+                           lcore_idle_hint = qconf->rx_queue_list[0].idle_hint;
                                        i < qconf->n_rx_queue; ++i) {
                                rx_queue = &(qconf->rx_queue_list[i]);
                                if (rx_queue->idle_hint < lcore_idle_hint)
                                        lcore_idle_hint = rx_queue->idle_hint;
                        }
 
-                       if ( lcore_idle_hint < SLEEP_GEAR1_THRESHOLD)
+                       if (lcore_idle_hint < SUSPEND_THRESHOLD)
                                /**
                                 * execute "pause" instruction to avoid context
-                                * switch for short sleep.
-                                */
+                                * switch which generally take hundred of
+                                * microseconds for short sleep.
+                                */
                                rte_delay_us(lcore_idle_hint);
-                       else
-                               /* long sleep force runing thread to suspend */
-                               usleep(lcore_idle_hint);
-
+                       else {
+                               /* suspend until rx interrupt triggers */
+                               if (intr_en) {
+                                       turn_on_off_intr(qconf, 1);
+                                       sleep_until_rx_interrupt(
+                                                       qconf->n_rx_queue);
+                                       turn_on_off_intr(qconf, 0);
+                                       /**
+                                        * start receiving packets immediately
+                                        */
+                                       if (likely(!is_done()))
+                                               goto start_rx;
+                               }
+                       }
                        stats[lcore_id].sleep_time += lcore_idle_hint;
                }
        }
-}
-
-static int
-check_lcore_params(void)
-{
-       uint8_t queue, lcore;
-       uint16_t i;
-       int socketid;
 
-       for (i = 0; i < nb_lcore_params; ++i) {
-               queue = lcore_params[i].queue_id;
-               if (queue >= MAX_RX_QUEUE_PER_PORT) {
-                       printf("invalid queue number: %hhu\n", queue);
-                       return -1;
-               }
-               lcore = lcore_params[i].lcore_id;
-               if (!rte_lcore_is_enabled(lcore)) {
-                       printf("error: lcore %hhu is not enabled in lcore "
-                                                       "mask\n", lcore);
-                       return -1;
-               }
-               if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
-                                                       (numa_on == 0)) {
-                       printf("warning: lcore %hhu is on socket %d with numa "
-                                               "off\n", lcore, socketid);
-               }
-       }
        return 0;
 }
 
+/* main processing loop */
 static int
-check_port_config(const unsigned nb_ports)
+main_telemetry_loop(__rte_unused void *dummy)
 {
-       unsigned portid;
-       uint16_t i;
+       struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+       unsigned int lcore_id;
+       uint64_t prev_tsc, diff_tsc, cur_tsc, prev_tel_tsc;
+       int i, j, nb_rx;
+       uint8_t queueid;
+       uint16_t portid;
+       struct lcore_conf *qconf;
+       struct lcore_rx_queue *rx_queue;
+       uint64_t ep_nep[2] = {0}, fp_nfp[2] = {0};
+       uint64_t poll_count;
+       enum busy_rate br;
 
-       for (i = 0; i < nb_lcore_params; ++i) {
-               portid = lcore_params[i].port_id;
-               if ((enabled_port_mask & (1 << portid)) == 0) {
-                       printf("port %u is not enabled in port mask\n",
-                                                               portid);
-                       return -1;
-               }
-               if (portid >= nb_ports) {
-                       printf("port %u is not present on the board\n",
-                                                               portid);
-                       return -1;
-               }
-       }
-       return 0;
-}
+       const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
+                                       US_PER_S * BURST_TX_DRAIN_US;
 
-static uint8_t
-get_port_n_rx_queues(const uint8_t port)
-{
-       int queue = -1;
-       uint16_t i;
+       poll_count = 0;
+       prev_tsc = 0;
+       prev_tel_tsc = 0;
 
-       for (i = 0; i < nb_lcore_params; ++i) {
-               if (lcore_params[i].port_id == port &&
+       lcore_id = rte_lcore_id();
+       qconf = &lcore_conf[lcore_id];
+
+       if (qconf->n_rx_queue == 0) {
+               RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
+                       lcore_id);
+               return 0;
+       }
+
+       RTE_LOG(INFO, L3FWD_POWER, "entering main telemetry loop on lcore %u\n",
+               lcore_id);
+
+       for (i = 0; i < qconf->n_rx_queue; i++) {
+               portid = qconf->rx_queue_list[i].port_id;
+               queueid = qconf->rx_queue_list[i].queue_id;
+               RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
+                       "rxqueueid=%hhu\n", lcore_id, portid, queueid);
+       }
+
+       while (!is_done()) {
+
+               cur_tsc = rte_rdtsc();
+               /*
+                * TX burst queue drain
+                */
+               diff_tsc = cur_tsc - prev_tsc;
+               if (unlikely(diff_tsc > drain_tsc)) {
+                       for (i = 0; i < qconf->n_tx_port; ++i) {
+                               portid = qconf->tx_port_id[i];
+                               rte_eth_tx_buffer_flush(portid,
+                                               qconf->tx_queue_id[portid],
+                                               qconf->tx_buffer[portid]);
+                       }
+                       prev_tsc = cur_tsc;
+               }
+
+               /*
+                * Read packet from RX queues
+                */
+               for (i = 0; i < qconf->n_rx_queue; ++i) {
+                       rx_queue = &(qconf->rx_queue_list[i]);
+                       portid = rx_queue->port_id;
+                       queueid = rx_queue->queue_id;
+
+                       nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
+                                                               MAX_PKT_BURST);
+                       ep_nep[nb_rx == 0]++;
+                       fp_nfp[nb_rx == MAX_PKT_BURST]++;
+                       poll_count++;
+                       if (unlikely(nb_rx == 0))
+                               continue;
+
+                       /* Prefetch first packets */
+                       for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
+                               rte_prefetch0(rte_pktmbuf_mtod(
+                                               pkts_burst[j], void *));
+                       }
+
+                       /* Prefetch and forward already prefetched packets */
+                       for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
+                               rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
+                                               j + PREFETCH_OFFSET], void *));
+                               l3fwd_simple_forward(pkts_burst[j], portid,
+                                                               qconf);
+                       }
+
+                       /* Forward remaining prefetched packets */
+                       for (; j < nb_rx; j++) {
+                               l3fwd_simple_forward(pkts_burst[j], portid,
+                                                               qconf);
+                       }
+               }
+               if (unlikely(poll_count >= DEFAULT_COUNT)) {
+                       diff_tsc = cur_tsc - prev_tel_tsc;
+                       if (diff_tsc >= MAX_CYCLES) {
+                               br = FULL;
+                       } else if (diff_tsc > MIN_CYCLES &&
+                                       diff_tsc < MAX_CYCLES) {
+                               br = (diff_tsc * 100) / MAX_CYCLES;
+                       } else {
+                               br = ZERO;
+                       }
+                       poll_count = 0;
+                       prev_tel_tsc = cur_tsc;
+                       /* update stats for telemetry */
+                       rte_spinlock_lock(&stats[lcore_id].telemetry_lock);
+                       stats[lcore_id].ep_nep[0] = ep_nep[0];
+                       stats[lcore_id].ep_nep[1] = ep_nep[1];
+                       stats[lcore_id].fp_nfp[0] = fp_nfp[0];
+                       stats[lcore_id].fp_nfp[1] = fp_nfp[1];
+                       stats[lcore_id].br = br;
+                       rte_spinlock_unlock(&stats[lcore_id].telemetry_lock);
+               }
+       }
+
+       return 0;
+}
+/* main processing loop */
+static int
+main_empty_poll_loop(__rte_unused void *dummy)
+{
+       struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+       unsigned int lcore_id;
+       uint64_t prev_tsc, diff_tsc, cur_tsc;
+       int i, j, nb_rx;
+       uint8_t queueid;
+       uint16_t portid;
+       struct lcore_conf *qconf;
+       struct lcore_rx_queue *rx_queue;
+
+       const uint64_t drain_tsc =
+               (rte_get_tsc_hz() + US_PER_S - 1) /
+               US_PER_S * BURST_TX_DRAIN_US;
+
+       prev_tsc = 0;
+
+       lcore_id = rte_lcore_id();
+       qconf = &lcore_conf[lcore_id];
+
+       if (qconf->n_rx_queue == 0) {
+               RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
+                       lcore_id);
+               return 0;
+       }
+
+       for (i = 0; i < qconf->n_rx_queue; i++) {
+               portid = qconf->rx_queue_list[i].port_id;
+               queueid = qconf->rx_queue_list[i].queue_id;
+               RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
+                               "rxqueueid=%hhu\n", lcore_id, portid, queueid);
+       }
+
+       while (!is_done()) {
+               stats[lcore_id].nb_iteration_looped++;
+
+               cur_tsc = rte_rdtsc();
+               /*
+                * TX burst queue drain
+                */
+               diff_tsc = cur_tsc - prev_tsc;
+               if (unlikely(diff_tsc > drain_tsc)) {
+                       for (i = 0; i < qconf->n_tx_port; ++i) {
+                               portid = qconf->tx_port_id[i];
+                               rte_eth_tx_buffer_flush(portid,
+                                               qconf->tx_queue_id[portid],
+                                               qconf->tx_buffer[portid]);
+                       }
+                       prev_tsc = cur_tsc;
+               }
+
+               /*
+                * Read packet from RX queues
+                */
+               for (i = 0; i < qconf->n_rx_queue; ++i) {
+                       rx_queue = &(qconf->rx_queue_list[i]);
+                       rx_queue->idle_hint = 0;
+                       portid = rx_queue->port_id;
+                       queueid = rx_queue->queue_id;
+
+                       nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
+                                       MAX_PKT_BURST);
+
+                       stats[lcore_id].nb_rx_processed += nb_rx;
+
+                       if (nb_rx == 0) {
+
+                               rte_power_empty_poll_stat_update(lcore_id);
+
+                               continue;
+                       } else {
+                               rte_power_poll_stat_update(lcore_id, nb_rx);
+                       }
+
+
+                       /* Prefetch first packets */
+                       for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
+                               rte_prefetch0(rte_pktmbuf_mtod(
+                                                       pkts_burst[j], void *));
+                       }
+
+                       /* Prefetch and forward already prefetched packets */
+                       for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
+                               rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
+                                                       j + PREFETCH_OFFSET],
+                                                       void *));
+                               l3fwd_simple_forward(pkts_burst[j], portid,
+                                               qconf);
+                       }
+
+                       /* Forward remaining prefetched packets */
+                       for (; j < nb_rx; j++) {
+                               l3fwd_simple_forward(pkts_burst[j], portid,
+                                               qconf);
+                       }
+
+               }
+
+       }
+
+       return 0;
+}
+/* main processing loop */
+static int
+main_legacy_loop(__rte_unused void *dummy)
+{
+       struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+       unsigned lcore_id;
+       uint64_t prev_tsc, diff_tsc, cur_tsc, tim_res_tsc, hz;
+       uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
+       int i, j, nb_rx;
+       uint8_t queueid;
+       uint16_t portid;
+       struct lcore_conf *qconf;
+       struct lcore_rx_queue *rx_queue;
+       enum freq_scale_hint_t lcore_scaleup_hint;
+       uint32_t lcore_rx_idle_count = 0;
+       uint32_t lcore_idle_hint = 0;
+       int intr_en = 0;
+
+       const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
+
+       prev_tsc = 0;
+       hz = rte_get_timer_hz();
+       tim_res_tsc = hz/TIMER_NUMBER_PER_SECOND;
+
+       lcore_id = rte_lcore_id();
+       qconf = &lcore_conf[lcore_id];
+
+       if (qconf->n_rx_queue == 0) {
+               RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
+               return 0;
+       }
+
+       RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);
+
+       for (i = 0; i < qconf->n_rx_queue; i++) {
+               portid = qconf->rx_queue_list[i].port_id;
+               queueid = qconf->rx_queue_list[i].queue_id;
+               RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
+                       "rxqueueid=%hhu\n", lcore_id, portid, queueid);
+       }
+
+       /* add into event wait list */
+       if (event_register(qconf) == 0)
+               intr_en = 1;
+       else
+               RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
+
+       while (!is_done()) {
+               stats[lcore_id].nb_iteration_looped++;
+
+               cur_tsc = rte_rdtsc();
+               cur_tsc_power = cur_tsc;
+
+               /*
+                * TX burst queue drain
+                */
+               diff_tsc = cur_tsc - prev_tsc;
+               if (unlikely(diff_tsc > drain_tsc)) {
+                       for (i = 0; i < qconf->n_tx_port; ++i) {
+                               portid = qconf->tx_port_id[i];
+                               rte_eth_tx_buffer_flush(portid,
+                                               qconf->tx_queue_id[portid],
+                                               qconf->tx_buffer[portid]);
+                       }
+                       prev_tsc = cur_tsc;
+               }
+
+               diff_tsc_power = cur_tsc_power - prev_tsc_power;
+               if (diff_tsc_power > tim_res_tsc) {
+                       rte_timer_manage();
+                       prev_tsc_power = cur_tsc_power;
+               }
+
+start_rx:
+               /*
+                * Read packet from RX queues
+                */
+               lcore_scaleup_hint = FREQ_CURRENT;
+               lcore_rx_idle_count = 0;
+               for (i = 0; i < qconf->n_rx_queue; ++i) {
+                       rx_queue = &(qconf->rx_queue_list[i]);
+                       rx_queue->idle_hint = 0;
+                       portid = rx_queue->port_id;
+                       queueid = rx_queue->queue_id;
+
+                       nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
+                                                               MAX_PKT_BURST);
+
+                       stats[lcore_id].nb_rx_processed += nb_rx;
+                       if (unlikely(nb_rx == 0)) {
+                               /**
+                                * no packet received from rx queue, try to
+                                * sleep for a while forcing CPU enter deeper
+                                * C states.
+                                */
+                               rx_queue->zero_rx_packet_count++;
+
+                               if (rx_queue->zero_rx_packet_count <=
+                                                       MIN_ZERO_POLL_COUNT)
+                                       continue;
+
+                               rx_queue->idle_hint = power_idle_heuristic(\
+                                       rx_queue->zero_rx_packet_count);
+                               lcore_rx_idle_count++;
+                       } else {
+                               rx_queue->zero_rx_packet_count = 0;
+
+                               /**
+                                * do not scale up frequency immediately as
+                                * user to kernel space communication is costly
+                                * which might impact packet I/O for received
+                                * packets.
+                                */
+                               rx_queue->freq_up_hint =
+                                       power_freq_scaleup_heuristic(lcore_id,
+                                                       portid, queueid);
+                       }
+
+                       /* Prefetch first packets */
+                       for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
+                               rte_prefetch0(rte_pktmbuf_mtod(
+                                               pkts_burst[j], void *));
+                       }
+
+                       /* Prefetch and forward already prefetched packets */
+                       for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
+                               rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
+                                               j + PREFETCH_OFFSET], void *));
+                               l3fwd_simple_forward(pkts_burst[j], portid,
+                                                               qconf);
+                       }
+
+                       /* Forward remaining prefetched packets */
+                       for (; j < nb_rx; j++) {
+                               l3fwd_simple_forward(pkts_burst[j], portid,
+                                                               qconf);
+                       }
+               }
+
+               if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
+                       for (i = 1, lcore_scaleup_hint =
+                               qconf->rx_queue_list[0].freq_up_hint;
+                                       i < qconf->n_rx_queue; ++i) {
+                               rx_queue = &(qconf->rx_queue_list[i]);
+                               if (rx_queue->freq_up_hint >
+                                               lcore_scaleup_hint)
+                                       lcore_scaleup_hint =
+                                               rx_queue->freq_up_hint;
+                       }
+
+                       if (lcore_scaleup_hint == FREQ_HIGHEST) {
+                               if (rte_power_freq_max)
+                                       rte_power_freq_max(lcore_id);
+                       } else if (lcore_scaleup_hint == FREQ_HIGHER) {
+                               if (rte_power_freq_up)
+                                       rte_power_freq_up(lcore_id);
+                       }
+               } else {
+                       /**
+                        * All Rx queues empty in recent consecutive polls,
+                        * sleep in a conservative manner, meaning sleep as
+                        * less as possible.
+                        */
+                       for (i = 1, lcore_idle_hint =
+                               qconf->rx_queue_list[0].idle_hint;
+                                       i < qconf->n_rx_queue; ++i) {
+                               rx_queue = &(qconf->rx_queue_list[i]);
+                               if (rx_queue->idle_hint < lcore_idle_hint)
+                                       lcore_idle_hint = rx_queue->idle_hint;
+                       }
+
+                       if (lcore_idle_hint < SUSPEND_THRESHOLD)
+                               /**
+                                * execute "pause" instruction to avoid context
+                                * switch which generally take hundred of
+                                * microseconds for short sleep.
+                                */
+                               rte_delay_us(lcore_idle_hint);
+                       else {
+                               /* suspend until rx interrupt triggers */
+                               if (intr_en) {
+                                       turn_on_off_intr(qconf, 1);
+                                       sleep_until_rx_interrupt(
+                                               qconf->n_rx_queue);
+                                       turn_on_off_intr(qconf, 0);
+                                       /**
+                                        * start receiving packets immediately
+                                        */
+                                       if (likely(!is_done()))
+                                               goto start_rx;
+                               }
+                       }
+                       stats[lcore_id].sleep_time += lcore_idle_hint;
+               }
+       }
+
+       return 0;
+}
+
+static int
+check_lcore_params(void)
+{
+       uint8_t queue, lcore;
+       uint16_t i;
+       int socketid;
+
+       for (i = 0; i < nb_lcore_params; ++i) {
+               queue = lcore_params[i].queue_id;
+               if (queue >= MAX_RX_QUEUE_PER_PORT) {
+                       printf("invalid queue number: %hhu\n", queue);
+                       return -1;
+               }
+               lcore = lcore_params[i].lcore_id;
+               if (!rte_lcore_is_enabled(lcore)) {
+                       printf("error: lcore %hhu is not enabled in lcore "
+                                                       "mask\n", lcore);
+                       return -1;
+               }
+               if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
+                                                       (numa_on == 0)) {
+                       printf("warning: lcore %hhu is on socket %d with numa "
+                                               "off\n", lcore, socketid);
+               }
+               if (app_mode == APP_MODE_TELEMETRY && lcore == rte_lcore_id()) {
+                       printf("cannot enable master core %d in config for telemetry mode\n",
+                               rte_lcore_id());
+                       return -1;
+               }
+       }
+       return 0;
+}
+
+static int
+check_port_config(void)
+{
+       unsigned portid;
+       uint16_t i;
+
+       for (i = 0; i < nb_lcore_params; ++i) {
+               portid = lcore_params[i].port_id;
+               if ((enabled_port_mask & (1 << portid)) == 0) {
+                       printf("port %u is not enabled in port mask\n",
+                                                               portid);
+                       return -1;
+               }
+               if (!rte_eth_dev_is_valid_port(portid)) {
+                       printf("port %u is not present on the board\n",
+                                                               portid);
+                       return -1;
+               }
+       }
+       return 0;
+}
+
+static uint8_t
+get_port_n_rx_queues(const uint16_t port)
+{
+       int queue = -1;
+       uint16_t i;
+
+       for (i = 0; i < nb_lcore_params; ++i) {
+               if (lcore_params[i].port_id == port &&
                                lcore_params[i].queue_id > queue)
                        queue = lcore_params[i].queue_id;
        }
@@ -1078,13 +1588,25 @@ print_usage(const char *prgname)
 {
        printf ("%s [EAL options] -- -p PORTMASK -P"
                "  [--config (port,queue,lcore)[,(port,queue,lcore]]"
+               "  [--high-perf-cores CORELIST"
+               "  [--perf-config (port,queue,hi_perf,lcore_index)[,(port,queue,hi_perf,lcore_index]]"
                "  [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
                "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
                "  -P : enable promiscuous mode\n"
                "  --config (port,queue,lcore): rx queues configuration\n"
+               "  --high-perf-cores CORELIST: list of high performance cores\n"
+               "  --perf-config: similar as config, cores specified as indices"
+               " for bins containing high or regular performance cores\n"
                "  --no-numa: optional, disable numa awareness\n"
                "  --enable-jumbo: enable jumbo frame"
-               " which max packet len is PKTLEN in decimal (64-9600)\n",
+               " which max packet len is PKTLEN in decimal (64-9600)\n"
+               "  --parse-ptype: parse packet type by software\n"
+               "  --legacy: use legacy interrupt-based scaling\n"
+               "  --empty-poll: enable empty poll detection"
+               " follow (training_flag, high_threshold, med_threshold)\n"
+               " --telemetry: enable telemetry mode, to update"
+               " empty polls, full polls, and core busyness to telemetry\n"
+               " --interrupt-only: enable interrupt-only mode\n",
                prgname);
 }
 
@@ -1112,11 +1634,8 @@ parse_portmask(const char *portmask)
 
        /* parse hexadecimal string */
        pm = strtoul(portmask, &end, 16);
-       if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
-               return -1;
-
-       if (pm == 0)
-               return -1;
+       if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
+               return 0;
 
        return pm;
 }
@@ -1149,7 +1668,7 @@ parse_config(const char *q_arg)
                if(size >= sizeof(s))
                        return -1;
 
-               rte_snprintf(s, sizeof(s), "%.*s", size, p);
+               snprintf(s, sizeof(s), "%.*s", size, p);
                if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
                                                                _NUM_FLD)
                        return -1;
@@ -1177,6 +1696,60 @@ parse_config(const char *q_arg)
 
        return 0;
 }
+static int
+parse_ep_config(const char *q_arg)
+{
+       char s[256];
+       const char *p = q_arg;
+       char *end;
+       int  num_arg;
+
+       char *str_fld[3];
+
+       int training_flag;
+       int med_edpi;
+       int hgh_edpi;
+
+       ep_med_edpi = EMPTY_POLL_MED_THRESHOLD;
+       ep_hgh_edpi = EMPTY_POLL_MED_THRESHOLD;
+
+       strlcpy(s, p, sizeof(s));
+
+       num_arg = rte_strsplit(s, sizeof(s), str_fld, 3, ',');
+
+       empty_poll_train = false;
+
+       if (num_arg == 0)
+               return 0;
+
+       if (num_arg == 3) {
+
+               training_flag = strtoul(str_fld[0], &end, 0);
+               med_edpi = strtoul(str_fld[1], &end, 0);
+               hgh_edpi = strtoul(str_fld[2], &end, 0);
+
+               if (training_flag == 1)
+                       empty_poll_train = true;
+
+               if (med_edpi > 0)
+                       ep_med_edpi = med_edpi;
+
+               if (med_edpi > 0)
+                       ep_hgh_edpi = hgh_edpi;
+
+       } else {
+
+               return -1;
+       }
+
+       return 0;
+
+}
+#define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
+#define CMD_LINE_OPT_LEGACY "legacy"
+#define CMD_LINE_OPT_EMPTY_POLL "empty-poll"
+#define CMD_LINE_OPT_INTERRUPT_ONLY "interrupt-only"
+#define CMD_LINE_OPT_TELEMETRY "telemetry"
 
 /* Parse the argument given in the command line of the application */
 static int
@@ -1185,17 +1758,25 @@ parse_args(int argc, char **argv)
        int opt, ret;
        char **argvopt;
        int option_index;
+       uint32_t limit;
        char *prgname = argv[0];
        static struct option lgopts[] = {
                {"config", 1, 0, 0},
+               {"perf-config", 1, 0, 0},
+               {"high-perf-cores", 1, 0, 0},
                {"no-numa", 0, 0, 0},
                {"enable-jumbo", 0, 0, 0},
+               {CMD_LINE_OPT_EMPTY_POLL, 1, 0, 0},
+               {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
+               {CMD_LINE_OPT_LEGACY, 0, 0, 0},
+               {CMD_LINE_OPT_TELEMETRY, 0, 0, 0},
+               {CMD_LINE_OPT_INTERRUPT_ONLY, 0, 0, 0},
                {NULL, 0, 0, 0}
        };
 
        argvopt = argv;
 
-       while ((opt = getopt_long(argc, argvopt, "p:P",
+       while ((opt = getopt_long(argc, argvopt, "p:l:m:h:P",
                                lgopts, &option_index)) != EOF) {
 
                switch (opt) {
@@ -1212,7 +1793,18 @@ parse_args(int argc, char **argv)
                        printf("Promiscuous mode selected\n");
                        promiscuous_on = 1;
                        break;
-
+               case 'l':
+                       limit = parse_max_pkt_len(optarg);
+                       freq_tlb[LOW] = limit;
+                       break;
+               case 'm':
+                       limit = parse_max_pkt_len(optarg);
+                       freq_tlb[MED] = limit;
+                       break;
+               case 'h':
+                       limit = parse_max_pkt_len(optarg);
+                       freq_tlb[HGH] = limit;
+                       break;
                /* long options */
                case 0:
                        if (!strncmp(lgopts[option_index].name, "config", 6)) {
@@ -1224,12 +1816,82 @@ parse_args(int argc, char **argv)
                                }
                        }
 
+                       if (!strncmp(lgopts[option_index].name,
+                                       "perf-config", 11)) {
+                               ret = parse_perf_config(optarg);
+                               if (ret) {
+                                       printf("invalid perf-config\n");
+                                       print_usage(prgname);
+                                       return -1;
+                               }
+                       }
+
+                       if (!strncmp(lgopts[option_index].name,
+                                       "high-perf-cores", 15)) {
+                               ret = parse_perf_core_list(optarg);
+                               if (ret) {
+                                       printf("invalid high-perf-cores\n");
+                                       print_usage(prgname);
+                                       return -1;
+                               }
+                       }
+
                        if (!strncmp(lgopts[option_index].name,
                                                "no-numa", 7)) {
                                printf("numa is disabled \n");
                                numa_on = 0;
                        }
 
+                       if (!strncmp(lgopts[option_index].name,
+                                       CMD_LINE_OPT_LEGACY,
+                                       sizeof(CMD_LINE_OPT_LEGACY))) {
+                               if (app_mode != APP_MODE_DEFAULT) {
+                                       printf(" legacy mode is mutually exclusive with other modes\n");
+                                       return -1;
+                               }
+                               app_mode = APP_MODE_LEGACY;
+                               printf("legacy mode is enabled\n");
+                       }
+
+                       if (!strncmp(lgopts[option_index].name,
+                                       CMD_LINE_OPT_EMPTY_POLL, 10)) {
+                               if (app_mode != APP_MODE_DEFAULT) {
+                                       printf(" empty-poll mode is mutually exclusive with other modes\n");
+                                       return -1;
+                               }
+                               app_mode = APP_MODE_EMPTY_POLL;
+                               ret = parse_ep_config(optarg);
+
+                               if (ret) {
+                                       printf("invalid empty poll config\n");
+                                       print_usage(prgname);
+                                       return -1;
+                               }
+                               printf("empty-poll is enabled\n");
+                       }
+
+                       if (!strncmp(lgopts[option_index].name,
+                                       CMD_LINE_OPT_TELEMETRY,
+                                       sizeof(CMD_LINE_OPT_TELEMETRY))) {
+                               if (app_mode != APP_MODE_DEFAULT) {
+                                       printf(" telemetry mode is mutually exclusive with other modes\n");
+                                       return -1;
+                               }
+                               app_mode = APP_MODE_TELEMETRY;
+                               printf("telemetry mode is enabled\n");
+                       }
+
+                       if (!strncmp(lgopts[option_index].name,
+                                       CMD_LINE_OPT_INTERRUPT_ONLY,
+                                       sizeof(CMD_LINE_OPT_INTERRUPT_ONLY))) {
+                               if (app_mode != APP_MODE_DEFAULT) {
+                                       printf(" interrupt-only mode is mutually exclusive with other modes\n");
+                                       return -1;
+                               }
+                               app_mode = APP_MODE_INTERRUPT;
+                               printf("interrupt-only mode is enabled\n");
+                       }
+
                        if (!strncmp(lgopts[option_index].name,
                                        "enable-jumbo", 12)) {
                                struct option lenopts =
@@ -1237,11 +1899,14 @@ parse_args(int argc, char **argv)
                                                                        0, 0};
 
                                printf("jumbo frame is enabled \n");
-                               port_conf.rxmode.jumbo_frame = 1;
+                               port_conf.rxmode.offloads |=
+                                               DEV_RX_OFFLOAD_JUMBO_FRAME;
+                               port_conf.txmode.offloads |=
+                                               DEV_TX_OFFLOAD_MULTI_SEGS;
 
                                /**
                                 * if no max-pkt-len set, use the default value
-                                * ETHER_MAX_LEN
+                                * RTE_ETHER_MAX_LEN
                                 */
                                if (0 == getopt_long(argc, argvopt, "",
                                                &lenopts, &option_index)) {
@@ -1260,6 +1925,13 @@ parse_args(int argc, char **argv)
                                (unsigned int)port_conf.rxmode.max_rx_pkt_len);
                        }
 
+                       if (!strncmp(lgopts[option_index].name,
+                                    CMD_LINE_OPT_PARSE_PTYPE,
+                                    sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
+                               printf("soft parse-ptype is enabled\n");
+                               parse_ptype = 1;
+                       }
+
                        break;
 
                default:
@@ -1272,20 +1944,16 @@ parse_args(int argc, char **argv)
                argv[optind-1] = prgname;
 
        ret = optind-1;
-       optind = 0; /* reset getopt lib */
+       optind = 1; /* reset getopt lib */
        return ret;
 }
 
 static void
-print_ethaddr(const char *name, const struct ether_addr *eth_addr)
+print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
 {
-       printf ("%s%02X:%02X:%02X:%02X:%02X:%02X", name,
-               eth_addr->addr_bytes[0],
-               eth_addr->addr_bytes[1],
-               eth_addr->addr_bytes[2],
-               eth_addr->addr_bytes[3],
-               eth_addr->addr_bytes[4],
-               eth_addr->addr_bytes[5]);
+       char buf[RTE_ETHER_ADDR_FMT_SIZE];
+       rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
+       printf("%s%s", name, buf);
 }
 
 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
@@ -1295,7 +1963,6 @@ setup_hash(int socketid)
        struct rte_hash_parameters ipv4_l3fwd_hash_params = {
                .name = NULL,
                .entries = L3FWD_HASH_ENTRIES,
-               .bucket_entries = 4,
                .key_len = sizeof(struct ipv4_5tuple),
                .hash_func = DEFAULT_HASH_FUNC,
                .hash_func_init_val = 0,
@@ -1304,7 +1971,6 @@ setup_hash(int socketid)
        struct rte_hash_parameters ipv6_l3fwd_hash_params = {
                .name = NULL,
                .entries = L3FWD_HASH_ENTRIES,
-               .bucket_entries = 4,
                .key_len = sizeof(struct ipv6_5tuple),
                .hash_func = DEFAULT_HASH_FUNC,
                .hash_func_init_val = 0,
@@ -1315,7 +1981,7 @@ setup_hash(int socketid)
        char s[64];
 
        /* create ipv4 hash */
-       rte_snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
+       snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
        ipv4_l3fwd_hash_params.name = s;
        ipv4_l3fwd_hash_params.socket_id = socketid;
        ipv4_l3fwd_lookup_struct[socketid] =
@@ -1325,7 +1991,7 @@ setup_hash(int socketid)
                                "socket %d\n", socketid);
 
        /* create ipv6 hash */
-       rte_snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
+       snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
        ipv6_l3fwd_hash_params.name = s;
        ipv6_l3fwd_hash_params.socket_id = socketid;
        ipv6_l3fwd_lookup_struct[socketid] =
@@ -1336,7 +2002,7 @@ setup_hash(int socketid)
 
 
        /* populate the ipv4 hash */
-       for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
+       for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
                ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
                                (void *) &ipv4_l3fwd_route_array[i].key);
                if (ret < 0) {
@@ -1349,7 +2015,7 @@ setup_hash(int socketid)
        }
 
        /* populate the ipv6 hash */
-       for (i = 0; i < IPV6_L3FWD_NUM_ROUTES; i++) {
+       for (i = 0; i < RTE_DIM(ipv6_l3fwd_route_array); i++) {
                ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
                                (void *) &ipv6_l3fwd_route_array[i].key);
                if (ret < 0) {
@@ -1372,15 +2038,21 @@ setup_lpm(int socketid)
        char s[64];
 
        /* create the LPM table */
-       rte_snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
-       ipv4_l3fwd_lookup_struct[socketid] = rte_lpm_create(s, socketid,
-                               IPV4_L3FWD_LPM_MAX_RULES, 0);
+       struct rte_lpm_config lpm_ipv4_config;
+
+       lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
+       lpm_ipv4_config.number_tbl8s = 256;
+       lpm_ipv4_config.flags = 0;
+
+       snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
+       ipv4_l3fwd_lookup_struct[socketid] =
+                       rte_lpm_create(s, socketid, &lpm_ipv4_config);
        if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
                rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
                                " on socket %d\n", socketid);
 
        /* populate the LPM table */
-       for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
+       for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
                ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
                        ipv4_l3fwd_route_array[i].ip,
                        ipv4_l3fwd_route_array[i].depth,
@@ -1423,14 +2095,12 @@ init_mem(unsigned nb_mbuf)
                                                lcore_id, NB_SOCKETS);
                }
                if (pktmbuf_pool[socketid] == NULL) {
-                       rte_snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
+                       snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
                        pktmbuf_pool[socketid] =
-                               rte_mempool_create(s, nb_mbuf,
-                                       MBUF_SIZE, MEMPOOL_CACHE_SIZE,
-                                       sizeof(struct rte_pktmbuf_pool_private),
-                                       rte_pktmbuf_pool_init, NULL,
-                                       rte_pktmbuf_init, NULL,
-                                       socketid, 0);
+                               rte_pktmbuf_pool_create(s, nb_mbuf,
+                                       MEMPOOL_CACHE_SIZE, 0,
+                                       RTE_MBUF_DEFAULT_BUF_SIZE,
+                                       socketid);
                        if (pktmbuf_pool[socketid] == NULL)
                                rte_exit(EXIT_FAILURE,
                                        "Cannot init mbuf pool on socket %d\n",
@@ -1456,22 +2126,31 @@ init_mem(unsigned nb_mbuf)
 
 /* Check the link status of all ports in up to 9s, and print them finally */
 static void
-check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
+check_all_ports_link_status(uint32_t port_mask)
 {
 #define CHECK_INTERVAL 100 /* 100ms */
 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
-       uint8_t portid, count, all_ports_up, print_flag = 0;
+       uint8_t count, all_ports_up, print_flag = 0;
+       uint16_t portid;
        struct rte_eth_link link;
+       int ret;
 
        printf("\nChecking link status");
        fflush(stdout);
        for (count = 0; count <= MAX_CHECK_TIME; count++) {
                all_ports_up = 1;
-               for (portid = 0; portid < port_num; portid++) {
+               RTE_ETH_FOREACH_DEV(portid) {
                        if ((port_mask & (1 << portid)) == 0)
                                continue;
                        memset(&link, 0, sizeof(link));
-                       rte_eth_link_get_nowait(portid, &link);
+                       ret = rte_eth_link_get_nowait(portid, &link);
+                       if (ret < 0) {
+                               all_ports_up = 0;
+                               if (print_flag == 1)
+                                       printf("Port %u link get failed: %s\n",
+                                               portid, rte_strerror(-ret));
+                               continue;
+                       }
                        /* print link status if flag set */
                        if (print_flag == 1) {
                                if (link.link_status)
@@ -1479,14 +2158,14 @@ check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
                                                "Mbps - %s\n", (uint8_t)portid,
                                                (unsigned)link.link_speed,
                                (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
-                                       ("full-duplex") : ("half-duplex\n"));
+                                       ("full-duplex") : ("half-duplex"));
                                else
                                        printf("Port %d Link Down\n",
                                                (uint8_t)portid);
                                continue;
                        }
                        /* clear all_ports_up flag if any link down */
-                       if (link.link_status == 0) {
+                       if (link.link_status == ETH_LINK_DOWN) {
                                all_ports_up = 0;
                                break;
                        }
@@ -1509,17 +2188,280 @@ check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
        }
 }
 
+static int check_ptype(uint16_t portid)
+{
+       int i, ret;
+       int ptype_l3_ipv4 = 0;
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+       int ptype_l3_ipv6 = 0;
+#endif
+       uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
+
+       ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
+       if (ret <= 0)
+               return 0;
+
+       uint32_t ptypes[ret];
+
+       ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
+       for (i = 0; i < ret; ++i) {
+               if (ptypes[i] & RTE_PTYPE_L3_IPV4)
+                       ptype_l3_ipv4 = 1;
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+               if (ptypes[i] & RTE_PTYPE_L3_IPV6)
+                       ptype_l3_ipv6 = 1;
+#endif
+       }
+
+       if (ptype_l3_ipv4 == 0)
+               printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+       if (ptype_l3_ipv6 == 0)
+               printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
+#endif
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
+       if (ptype_l3_ipv4)
+#else /* APP_LOOKUP_EXACT_MATCH */
+       if (ptype_l3_ipv4 && ptype_l3_ipv6)
+#endif
+               return 1;
+
+       return 0;
+
+}
+
+static int
+init_power_library(void)
+{
+       enum power_management_env env;
+       unsigned int lcore_id;
+       int ret = 0;
+
+       RTE_LCORE_FOREACH(lcore_id) {
+               /* init power management library */
+               ret = rte_power_init(lcore_id);
+               if (ret) {
+                       RTE_LOG(ERR, POWER,
+                               "Library initialization failed on core %u\n",
+                               lcore_id);
+                       return ret;
+               }
+               /* we're not supporting the VM channel mode */
+               env = rte_power_get_env();
+               if (env != PM_ENV_ACPI_CPUFREQ &&
+                               env != PM_ENV_PSTATE_CPUFREQ) {
+                       RTE_LOG(ERR, POWER,
+                               "Only ACPI and PSTATE mode are supported\n");
+                       return -1;
+               }
+       }
+       return ret;
+}
+
+static int
+deinit_power_library(void)
+{
+       unsigned int lcore_id;
+       int ret = 0;
+
+       RTE_LCORE_FOREACH(lcore_id) {
+               /* deinit power management library */
+               ret = rte_power_exit(lcore_id);
+               if (ret) {
+                       RTE_LOG(ERR, POWER,
+                               "Library deinitialization failed on core %u\n",
+                               lcore_id);
+                       return ret;
+               }
+       }
+       return ret;
+}
+
+static void
+get_current_stat_values(uint64_t *values)
+{
+       unsigned int lcore_id = rte_lcore_id();
+       struct lcore_conf *qconf;
+       uint64_t app_eps = 0, app_fps = 0, app_br = 0;
+       uint64_t count = 0;
+
+       RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+               qconf = &lcore_conf[lcore_id];
+               if (qconf->n_rx_queue == 0)
+                       continue;
+               count++;
+               rte_spinlock_lock(&stats[lcore_id].telemetry_lock);
+               app_eps += stats[lcore_id].ep_nep[1];
+               app_fps += stats[lcore_id].fp_nfp[1];
+               app_br += stats[lcore_id].br;
+               rte_spinlock_unlock(&stats[lcore_id].telemetry_lock);
+       }
+
+       if (count > 0) {
+               values[0] = app_eps/count;
+               values[1] = app_fps/count;
+               values[2] = app_br/count;
+       } else
+               memset(values, 0, sizeof(uint64_t) * NUM_TELSTATS);
+
+}
+
+static void
+update_telemetry(__rte_unused struct rte_timer *tim,
+               __rte_unused void *arg)
+{
+       int ret;
+       uint64_t values[NUM_TELSTATS] = {0};
+
+       get_current_stat_values(values);
+       ret = rte_metrics_update_values(RTE_METRICS_GLOBAL, telstats_index,
+                                       values, RTE_DIM(values));
+       if (ret < 0)
+               RTE_LOG(WARNING, POWER, "failed to update metrcis\n");
+}
+
+static int
+handle_app_stats(const char *cmd __rte_unused,
+               const char *params __rte_unused,
+               struct rte_tel_data *d)
+{
+       uint64_t values[NUM_TELSTATS] = {0};
+       uint32_t i;
+
+       rte_tel_data_start_dict(d);
+       get_current_stat_values(values);
+       for (i = 0; i < NUM_TELSTATS; i++)
+               rte_tel_data_add_dict_u64(d, telstats_strings[i].name,
+                               values[i]);
+       return 0;
+}
+
+static void
+telemetry_setup_timer(void)
+{
+       int lcore_id = rte_lcore_id();
+       uint64_t hz = rte_get_timer_hz();
+       uint64_t ticks;
+
+       ticks = hz / TELEMETRY_INTERVALS_PER_SEC;
+       rte_timer_reset_sync(&telemetry_timer,
+                       ticks,
+                       PERIODICAL,
+                       lcore_id,
+                       update_telemetry,
+                       NULL);
+}
+static void
+empty_poll_setup_timer(void)
+{
+       int lcore_id = rte_lcore_id();
+       uint64_t hz = rte_get_timer_hz();
+
+       struct  ep_params *ep_ptr = ep_params;
+
+       ep_ptr->interval_ticks = hz / INTERVALS_PER_SECOND;
+
+       rte_timer_reset_sync(&ep_ptr->timer0,
+                       ep_ptr->interval_ticks,
+                       PERIODICAL,
+                       lcore_id,
+                       rte_empty_poll_detection,
+                       (void *)ep_ptr);
+
+}
+static int
+launch_timer(unsigned int lcore_id)
+{
+       int64_t prev_tsc = 0, cur_tsc, diff_tsc, cycles_10ms;
+
+       RTE_SET_USED(lcore_id);
+
+
+       if (rte_get_master_lcore() != lcore_id) {
+               rte_panic("timer on lcore:%d which is not master core:%d\n",
+                               lcore_id,
+                               rte_get_master_lcore());
+       }
+
+       RTE_LOG(INFO, POWER, "Bring up the Timer\n");
+
+       if (app_mode == APP_MODE_EMPTY_POLL)
+               empty_poll_setup_timer();
+       else
+               telemetry_setup_timer();
+
+       cycles_10ms = rte_get_timer_hz() / 100;
+
+       while (!is_done()) {
+               cur_tsc = rte_rdtsc();
+               diff_tsc = cur_tsc - prev_tsc;
+               if (diff_tsc > cycles_10ms) {
+                       rte_timer_manage();
+                       prev_tsc = cur_tsc;
+                       cycles_10ms = rte_get_timer_hz() / 100;
+               }
+       }
+
+       RTE_LOG(INFO, POWER, "Timer_subsystem is done\n");
+
+       return 0;
+}
+
+static int
+autodetect_mode(void)
+{
+       RTE_LOG(NOTICE, L3FWD_POWER, "Operating mode not specified, probing frequency scaling support...\n");
+
+       /*
+        * Empty poll and telemetry modes have to be specifically requested to
+        * be enabled, but we can auto-detect between interrupt mode with or
+        * without frequency scaling. Both ACPI and pstate can be used.
+        */
+       if (rte_power_check_env_supported(PM_ENV_ACPI_CPUFREQ))
+               return APP_MODE_LEGACY;
+       if (rte_power_check_env_supported(PM_ENV_PSTATE_CPUFREQ))
+               return APP_MODE_LEGACY;
+
+       RTE_LOG(NOTICE, L3FWD_POWER, "Frequency scaling not supported, selecting interrupt-only mode\n");
+
+       return APP_MODE_INTERRUPT;
+}
+
+static const char *
+mode_to_str(enum appmode mode)
+{
+       switch (mode) {
+       case APP_MODE_LEGACY:
+               return "legacy";
+       case APP_MODE_EMPTY_POLL:
+               return "empty poll";
+       case APP_MODE_TELEMETRY:
+               return "telemetry";
+       case APP_MODE_INTERRUPT:
+               return "interrupt-only";
+       default:
+               return "invalid";
+       }
+}
+
 int
-MAIN(int argc, char **argv)
+main(int argc, char **argv)
 {
        struct lcore_conf *qconf;
+       struct rte_eth_dev_info dev_info;
+       struct rte_eth_txconf *txconf;
        int ret;
-       unsigned nb_ports;
+       uint16_t nb_ports;
        uint16_t queueid;
        unsigned lcore_id;
        uint64_t hz;
        uint32_t n_tx_queue, nb_lcores;
-       uint8_t portid, nb_rx_queue, queue, socketid;
+       uint32_t dev_rxq_num, dev_txq_num;
+       uint8_t nb_rx_queue, queue, socketid;
+       uint16_t portid;
+       const char *ptr_strings[NUM_TELSTATS];
 
        /* catch SIGINT and restore cpufreq governor to ondemand */
        signal(SIGINT, signal_exit_now);
@@ -1539,6 +2481,20 @@ MAIN(int argc, char **argv)
        if (ret < 0)
                rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
 
+       if (app_mode == APP_MODE_DEFAULT)
+               app_mode = autodetect_mode();
+
+       RTE_LOG(INFO, L3FWD_POWER, "Selected operation mode: %s\n",
+                       mode_to_str(app_mode));
+
+       /* only legacy and empty poll mode rely on power library */
+       if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) &&
+                       init_power_library())
+               rte_exit(EXIT_FAILURE, "init_power_library failed\n");
+
+       if (update_lcore_params() < 0)
+               rte_exit(EXIT_FAILURE, "update_lcore_params failed\n");
+
        if (check_lcore_params() < 0)
                rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
 
@@ -1546,21 +2502,20 @@ MAIN(int argc, char **argv)
        if (ret < 0)
                rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
 
+       nb_ports = rte_eth_dev_count_avail();
 
-       if (rte_eal_pci_probe() < 0)
-               rte_exit(EXIT_FAILURE, "Cannot probe PCI\n");
-
-       nb_ports = rte_eth_dev_count();
-       if (nb_ports > RTE_MAX_ETHPORTS)
-               nb_ports = RTE_MAX_ETHPORTS;
-
-       if (check_port_config(nb_ports) < 0)
+       if (check_port_config() < 0)
                rte_exit(EXIT_FAILURE, "check_port_config failed\n");
 
        nb_lcores = rte_lcore_count();
 
        /* initialize all ports */
-       for (portid = 0; portid < nb_ports; portid++) {
+       RTE_ETH_FOREACH_DEV(portid) {
+               struct rte_eth_conf local_port_conf = port_conf;
+               /* not all app modes need interrupts */
+               bool need_intr = app_mode == APP_MODE_LEGACY ||
+                               app_mode == APP_MODE_INTERRUPT;
+
                /* skip ports that are not enabled */
                if ((enabled_port_mask & (1 << portid)) == 0) {
                        printf("\nSkipping disabled port %d\n", portid);
@@ -1571,19 +2526,73 @@ MAIN(int argc, char **argv)
                printf("Initializing port %d ... ", portid );
                fflush(stdout);
 
+               ret = rte_eth_dev_info_get(portid, &dev_info);
+               if (ret != 0)
+                       rte_exit(EXIT_FAILURE,
+                               "Error during getting device (port %u) info: %s\n",
+                               portid, strerror(-ret));
+
+               dev_rxq_num = dev_info.max_rx_queues;
+               dev_txq_num = dev_info.max_tx_queues;
+
                nb_rx_queue = get_port_n_rx_queues(portid);
+               if (nb_rx_queue > dev_rxq_num)
+                       rte_exit(EXIT_FAILURE,
+                               "Cannot configure not existed rxq: "
+                               "port=%d\n", portid);
+
                n_tx_queue = nb_lcores;
-               if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
-                       n_tx_queue = MAX_TX_QUEUE_PER_PORT;
+               if (n_tx_queue > dev_txq_num)
+                       n_tx_queue = dev_txq_num;
                printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
                        nb_rx_queue, (unsigned)n_tx_queue );
+               /* If number of Rx queue is 0, no need to enable Rx interrupt */
+               if (nb_rx_queue == 0)
+                       need_intr = false;
+
+               if (need_intr)
+                       local_port_conf.intr_conf.rxq = 1;
+
+               ret = rte_eth_dev_info_get(portid, &dev_info);
+               if (ret != 0)
+                       rte_exit(EXIT_FAILURE,
+                               "Error during getting device (port %u) info: %s\n",
+                               portid, strerror(-ret));
+
+               if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
+                       local_port_conf.txmode.offloads |=
+                               DEV_TX_OFFLOAD_MBUF_FAST_FREE;
+
+               local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
+                       dev_info.flow_type_rss_offloads;
+               if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
+                               port_conf.rx_adv_conf.rss_conf.rss_hf) {
+                       printf("Port %u modified RSS hash function based on hardware support,"
+                               "requested:%#"PRIx64" configured:%#"PRIx64"\n",
+                               portid,
+                               port_conf.rx_adv_conf.rss_conf.rss_hf,
+                               local_port_conf.rx_adv_conf.rss_conf.rss_hf);
+               }
+
                ret = rte_eth_dev_configure(portid, nb_rx_queue,
-                                       (uint16_t)n_tx_queue, &port_conf);
+                                       (uint16_t)n_tx_queue, &local_port_conf);
                if (ret < 0)
                        rte_exit(EXIT_FAILURE, "Cannot configure device: "
                                        "err=%d, port=%d\n", ret, portid);
 
-               rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
+               ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
+                                                      &nb_txd);
+               if (ret < 0)
+                       rte_exit(EXIT_FAILURE,
+                                "Cannot adjust number of descriptors: err=%d, port=%d\n",
+                                ret, portid);
+
+               ret = rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
+               if (ret < 0)
+                       rte_exit(EXIT_FAILURE,
+                                "Cannot get MAC address: err=%d, port=%d\n",
+                                ret, portid);
+
                print_ethaddr(" Address:", &ports_eth_addr[portid]);
                printf(", ");
 
@@ -1592,12 +2601,31 @@ MAIN(int argc, char **argv)
                if (ret < 0)
                        rte_exit(EXIT_FAILURE, "init_mem failed\n");
 
+               for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+                       if (rte_lcore_is_enabled(lcore_id) == 0)
+                               continue;
+
+                       /* Initialize TX buffers */
+                       qconf = &lcore_conf[lcore_id];
+                       qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
+                               RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
+                               rte_eth_dev_socket_id(portid));
+                       if (qconf->tx_buffer[portid] == NULL)
+                               rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n",
+                                                portid);
+
+                       rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST);
+               }
+
                /* init one TX queue per couple (lcore,port) */
                queueid = 0;
                for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
                        if (rte_lcore_is_enabled(lcore_id) == 0)
                                continue;
 
+                       if (queueid >= dev_txq_num)
+                               continue;
+
                        if (numa_on)
                                socketid = \
                                (uint8_t)rte_lcore_to_socket_id(lcore_id);
@@ -1606,8 +2634,11 @@ MAIN(int argc, char **argv)
 
                        printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
                        fflush(stdout);
+
+                       txconf = &dev_info.default_txconf;
+                       txconf->offloads = local_port_conf.txmode.offloads;
                        ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
-                                                    socketid, &tx_conf);
+                                                    socketid, txconf);
                        if (ret < 0)
                                rte_exit(EXIT_FAILURE,
                                        "rte_eth_tx_queue_setup: err=%d, "
@@ -1616,6 +2647,9 @@ MAIN(int argc, char **argv)
                        qconf = &lcore_conf[lcore_id];
                        qconf->tx_queue_id[portid] = queueid;
                        queueid++;
+
+                       qconf->tx_port_id[qconf->n_tx_port] = portid;
+                       qconf->n_tx_port++;
                }
                printf("\n");
        }
@@ -1624,24 +2658,22 @@ MAIN(int argc, char **argv)
                if (rte_lcore_is_enabled(lcore_id) == 0)
                        continue;
 
-               /* init power management library */
-               ret = rte_power_init(lcore_id);
-               if (ret)
-                       rte_exit(EXIT_FAILURE, "Power management library "
-                               "initialization failed on core%u\n", lcore_id);
-
-               /* init timer structures for each enabled lcore */
-               rte_timer_init(&power_timers[lcore_id]);
-               hz = rte_get_timer_hz();
-               rte_timer_reset(&power_timers[lcore_id],
-                       hz/TIMER_NUMBER_PER_SECOND, SINGLE, lcore_id,
-                                               power_timer_cb, NULL);
-
+               if (app_mode == APP_MODE_LEGACY) {
+                       /* init timer structures for each enabled lcore */
+                       rte_timer_init(&power_timers[lcore_id]);
+                       hz = rte_get_timer_hz();
+                       rte_timer_reset(&power_timers[lcore_id],
+                                       hz/TIMER_NUMBER_PER_SECOND,
+                                       SINGLE, lcore_id,
+                                       power_timer_cb, NULL);
+               }
                qconf = &lcore_conf[lcore_id];
                printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
                fflush(stdout);
                /* init RX queues */
                for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
+                       struct rte_eth_rxconf rxq_conf;
+
                        portid = qconf->rx_queue_list[queue].port_id;
                        queueid = qconf->rx_queue_list[queue].queue_id;
 
@@ -1654,19 +2686,36 @@ MAIN(int argc, char **argv)
                        printf("rxq=%d,%d,%d ", portid, queueid, socketid);
                        fflush(stdout);
 
+                       ret = rte_eth_dev_info_get(portid, &dev_info);
+                       if (ret != 0)
+                               rte_exit(EXIT_FAILURE,
+                                       "Error during getting device (port %u) info: %s\n",
+                                       portid, strerror(-ret));
+
+                       rxq_conf = dev_info.default_rxconf;
+                       rxq_conf.offloads = port_conf.rxmode.offloads;
                        ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
-                               socketid, &rx_conf, pktmbuf_pool[socketid]);
+                               socketid, &rxq_conf,
+                               pktmbuf_pool[socketid]);
                        if (ret < 0)
                                rte_exit(EXIT_FAILURE,
                                        "rte_eth_rx_queue_setup: err=%d, "
                                                "port=%d\n", ret, portid);
+
+                       if (parse_ptype) {
+                               if (add_cb_parse_ptype(portid, queueid) < 0)
+                                       rte_exit(EXIT_FAILURE,
+                                                "Fail to add ptype cb\n");
+                       } else if (!check_ptype(portid))
+                               rte_exit(EXIT_FAILURE,
+                                        "PMD can not provide needed ptypes\n");
                }
        }
 
        printf("\n");
 
        /* start ports */
-       for (portid = 0; portid < nb_ports; portid++) {
+       RTE_ETH_FOREACH_DEV(portid) {
                if ((enabled_port_mask & (1 << portid)) == 0) {
                        continue;
                }
@@ -1675,25 +2724,104 @@ MAIN(int argc, char **argv)
                if (ret < 0)
                        rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
                                                "port=%d\n", ret, portid);
-
                /*
                 * If enabled, put device in promiscuous mode.
                 * This allows IO forwarding mode to forward packets
                 * to itself through 2 cross-connected  ports of the
                 * target machine.
                 */
-               if (promiscuous_on)
-                       rte_eth_promiscuous_enable(portid);
+               if (promiscuous_on) {
+                       ret = rte_eth_promiscuous_enable(portid);
+                       if (ret != 0)
+                               rte_exit(EXIT_FAILURE,
+                                       "rte_eth_promiscuous_enable: err=%s, port=%u\n",
+                                       rte_strerror(-ret), portid);
+               }
+               /* initialize spinlock for each port */
+               rte_spinlock_init(&(locks[portid]));
+       }
+
+       check_all_ports_link_status(enabled_port_mask);
+
+       if (app_mode == APP_MODE_EMPTY_POLL) {
+
+               if (empty_poll_train) {
+                       policy.state = TRAINING;
+               } else {
+                       policy.state = MED_NORMAL;
+                       policy.med_base_edpi = ep_med_edpi;
+                       policy.hgh_base_edpi = ep_hgh_edpi;
+               }
+
+               ret = rte_power_empty_poll_stat_init(&ep_params,
+                               freq_tlb,
+                               &policy);
+               if (ret < 0)
+                       rte_exit(EXIT_FAILURE, "empty poll init failed");
        }
 
-       check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
 
        /* launch per-lcore init on every lcore */
-       rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
+       if (app_mode == APP_MODE_LEGACY) {
+               rte_eal_mp_remote_launch(main_legacy_loop, NULL, CALL_MASTER);
+       } else if (app_mode == APP_MODE_EMPTY_POLL) {
+               empty_poll_stop = false;
+               rte_eal_mp_remote_launch(main_empty_poll_loop, NULL,
+                               SKIP_MASTER);
+       } else if (app_mode == APP_MODE_TELEMETRY) {
+               unsigned int i;
+
+               /* Init metrics library */
+               rte_metrics_init(rte_socket_id());
+               /** Register stats with metrics library */
+               for (i = 0; i < NUM_TELSTATS; i++)
+                       ptr_strings[i] = telstats_strings[i].name;
+
+               ret = rte_metrics_reg_names(ptr_strings, NUM_TELSTATS);
+               if (ret >= 0)
+                       telstats_index = ret;
+               else
+                       rte_exit(EXIT_FAILURE, "failed to register metrics names");
+
+               RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+                       rte_spinlock_init(&stats[lcore_id].telemetry_lock);
+               }
+               rte_timer_init(&telemetry_timer);
+               rte_telemetry_register_cmd("/l3fwd-power/stats",
+                               handle_app_stats,
+                               "Returns global power stats. Parameters: None");
+               rte_eal_mp_remote_launch(main_telemetry_loop, NULL,
+                                               SKIP_MASTER);
+       } else if (app_mode == APP_MODE_INTERRUPT) {
+               rte_eal_mp_remote_launch(main_intr_loop, NULL, CALL_MASTER);
+       }
+
+       if (app_mode == APP_MODE_EMPTY_POLL || app_mode == APP_MODE_TELEMETRY)
+               launch_timer(rte_lcore_id());
+
        RTE_LCORE_FOREACH_SLAVE(lcore_id) {
                if (rte_eal_wait_lcore(lcore_id) < 0)
                        return -1;
        }
 
+       RTE_ETH_FOREACH_DEV(portid)
+       {
+               if ((enabled_port_mask & (1 << portid)) == 0)
+                       continue;
+
+               rte_eth_dev_stop(portid);
+               rte_eth_dev_close(portid);
+       }
+
+       if (app_mode == APP_MODE_EMPTY_POLL)
+               rte_power_empty_poll_stat_free();
+
+       if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) &&
+                       deinit_power_library())
+               rte_exit(EXIT_FAILURE, "deinit_power_library failed\n");
+
+       if (rte_eal_cleanup() < 0)
+               RTE_LOG(ERR, L3FWD_POWER, "EAL cleanup failed\n");
+
        return 0;
 }