--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2013 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.
+ *
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <limits.h>
+#include <string.h>
+
+#include <cmdline_parse.h>
+
+#include "test.h"
+
+#ifdef RTE_LIBRTE_POWER
+
+#include <rte_power.h>
+
+#define TEST_POWER_LCORE_ID 2U
+#define TEST_POWER_LCORE_INVALID ((unsigned)RTE_MAX_LCORE)
+#define TEST_POWER_FREQS_NUM_MAX ((unsigned)RTE_MAX_LCORE_FREQS)
+
+#define TEST_POWER_SYSFILE_CUR_FREQ \
+ "/sys/devices/system/cpu/cpu%u/cpufreq/scaling_cur_freq"
+
+static uint32_t total_freq_num;
+static uint32_t freqs[TEST_POWER_FREQS_NUM_MAX];
+
+static int
+check_cur_freq(unsigned lcore_id, uint32_t idx)
+{
+#define TEST_POWER_CONVERT_TO_DECIMAL 10
+ FILE *f;
+ char fullpath[PATH_MAX];
+ char buf[BUFSIZ];
+ uint32_t cur_freq;
+ int ret = -1;
+
+ if (rte_snprintf(fullpath, sizeof(fullpath),
+ TEST_POWER_SYSFILE_CUR_FREQ, lcore_id) < 0) {
+ return 0;
+ }
+ f = fopen(fullpath, "r");
+ if (f == NULL) {
+ return 0;
+ }
+ if (fgets(buf, sizeof(buf), f) == NULL) {
+ goto fail_get_cur_freq;
+ }
+ cur_freq = strtoul(buf, NULL, TEST_POWER_CONVERT_TO_DECIMAL);
+ ret = (freqs[idx] == cur_freq ? 0 : -1);
+
+fail_get_cur_freq:
+ fclose(f);
+
+ return ret;
+}
+
+/* Check rte_power_freqs() */
+static int
+check_power_freqs(void)
+{
+ uint32_t ret;
+
+ total_freq_num = 0;
+ memset(freqs, 0, sizeof(freqs));
+
+ /* test with an invalid lcore id */
+ ret = rte_power_freqs(TEST_POWER_LCORE_INVALID, freqs,
+ TEST_POWER_FREQS_NUM_MAX);
+ if (ret > 0) {
+ printf("Unexpectedly get available freqs successfully on "
+ "lcore %u\n", TEST_POWER_LCORE_INVALID);
+ return -1;
+ }
+
+ /* test with NULL buffer to save available freqs */
+ ret = rte_power_freqs(TEST_POWER_LCORE_ID, NULL,
+ TEST_POWER_FREQS_NUM_MAX);
+ if (ret > 0) {
+ printf("Unexpectedly get available freqs successfully with "
+ "NULL buffer on lcore %u\n", TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /* test of getting zero number of freqs */
+ ret = rte_power_freqs(TEST_POWER_LCORE_ID, freqs, 0);
+ if (ret > 0) {
+ printf("Unexpectedly get available freqs successfully with "
+ "zero buffer size on lcore %u\n", TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /* test with all valid input parameters */
+ ret = rte_power_freqs(TEST_POWER_LCORE_ID, freqs,
+ TEST_POWER_FREQS_NUM_MAX);
+ if (ret == 0 || ret > TEST_POWER_FREQS_NUM_MAX) {
+ printf("Fail to get available freqs on lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /* Save the total number of available freqs */
+ total_freq_num = ret;
+
+ return 0;
+}
+
+/* Check rte_power_get_freq() */
+static int
+check_power_get_freq(void)
+{
+ int ret;
+ uint32_t count;
+
+ /* test with an invalid lcore id */
+ count = rte_power_get_freq(TEST_POWER_LCORE_INVALID);
+ if (count < TEST_POWER_FREQS_NUM_MAX) {
+ printf("Unexpectedly get freq index successfully on "
+ "lcore %u\n", TEST_POWER_LCORE_INVALID);
+ return -1;
+ }
+
+ count = rte_power_get_freq(TEST_POWER_LCORE_ID);
+ if (count >= TEST_POWER_FREQS_NUM_MAX) {
+ printf("Fail to get the freq index on lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /* Check the current frequency */
+ ret = check_cur_freq(TEST_POWER_LCORE_ID, count);
+ if (ret < 0)
+ return -1;
+
+ return 0;
+}
+
+/* Check rte_power_set_freq() */
+static int
+check_power_set_freq(void)
+{
+ int ret;
+
+ /* test with an invalid lcore id */
+ ret = rte_power_set_freq(TEST_POWER_LCORE_INVALID, 0);
+ if (ret >= 0) {
+ printf("Unexpectedly set freq index successfully on "
+ "lcore %u\n", TEST_POWER_LCORE_INVALID);
+ return -1;
+ }
+
+ /* test with an invalid freq index */
+ ret = rte_power_set_freq(TEST_POWER_LCORE_ID,
+ TEST_POWER_FREQS_NUM_MAX);
+ if (ret >= 0) {
+ printf("Unexpectedly set an invalid freq index (%u)"
+ "successfully on lcore %u\n", TEST_POWER_FREQS_NUM_MAX,
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /**
+ * test with an invalid freq index which is right one bigger than
+ * total number of freqs
+ */
+ ret = rte_power_set_freq(TEST_POWER_LCORE_ID, total_freq_num);
+ if (ret >= 0) {
+ printf("Unexpectedly set an invalid freq index (%u)"
+ "successfully on lcore %u\n", total_freq_num,
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+ ret = rte_power_set_freq(TEST_POWER_LCORE_ID, 3);
+ if (ret < 0) {
+ printf("Fail to set freq index on lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /* Check the current frequency */
+ ret = check_cur_freq(TEST_POWER_LCORE_ID, 3);
+ if (ret < 0)
+ return -1;
+
+ return 0;
+}
+
+/* Check rte_power_freq_down() */
+static int
+check_power_freq_down(void)
+{
+ int ret;
+
+ /* test with an invalid lcore id */
+ ret = rte_power_freq_down(TEST_POWER_LCORE_INVALID);
+ if (ret >= 0) {
+ printf("Unexpectedly scale down successfully the freq on "
+ "lcore %u\n", TEST_POWER_LCORE_INVALID);
+ return -1;
+ }
+
+ /* Scale down to min and then scale down one step */
+ ret = rte_power_freq_min(TEST_POWER_LCORE_ID);
+ if (ret < 0) {
+ printf("Fail to scale down the freq to min on lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+ ret = rte_power_freq_down(TEST_POWER_LCORE_ID);
+ if (ret < 0) {
+ printf("Fail to scale down the freq on lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /* Check the current frequency */
+ ret = check_cur_freq(TEST_POWER_LCORE_ID, total_freq_num - 1);
+ if (ret < 0)
+ return -1;
+
+ /* Scale up to max and then scale down one step */
+ ret = rte_power_freq_max(TEST_POWER_LCORE_ID);
+ if (ret < 0) {
+ printf("Fail to scale up the freq to max on lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+ ret = rte_power_freq_down(TEST_POWER_LCORE_ID);
+ if (ret < 0) {
+ printf ("Fail to scale down the freq on lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /* Check the current frequency */
+ ret = check_cur_freq(TEST_POWER_LCORE_ID, 1);
+ if (ret < 0)
+ return -1;
+
+ return 0;
+}
+
+/* Check rte_power_freq_up() */
+static int
+check_power_freq_up(void)
+{
+ int ret;
+
+ /* test with an invalid lcore id */
+ ret = rte_power_freq_up(TEST_POWER_LCORE_INVALID);
+ if (ret >= 0) {
+ printf("Unexpectedly scale up successfully the freq on %u\n",
+ TEST_POWER_LCORE_INVALID);
+ return -1;
+ }
+
+ /* Scale down to min and then scale up one step */
+ ret = rte_power_freq_min(TEST_POWER_LCORE_ID);
+ if (ret < 0) {
+ printf("Fail to scale down the freq to min on lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+ ret = rte_power_freq_up(TEST_POWER_LCORE_ID);
+ if (ret < 0) {
+ printf("Fail to scale up the freq on lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /* Check the current frequency */
+ ret = check_cur_freq(TEST_POWER_LCORE_ID, total_freq_num - 2);
+ if (ret < 0)
+ return -1;
+
+ /* Scale up to max and then scale up one step */
+ ret = rte_power_freq_max(TEST_POWER_LCORE_ID);
+ if (ret < 0) {
+ printf("Fail to scale up the freq to max on lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+ ret = rte_power_freq_up(TEST_POWER_LCORE_ID);
+ if (ret < 0) {
+ printf("Fail to scale up the freq on lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /* Check the current frequency */
+ ret = check_cur_freq(TEST_POWER_LCORE_ID, 0);
+ if (ret < 0)
+ return -1;
+
+ return 0;
+}
+
+/* Check rte_power_freq_max() */
+static int
+check_power_freq_max(void)
+{
+ int ret;
+
+ /* test with an invalid lcore id */
+ ret = rte_power_freq_max(TEST_POWER_LCORE_INVALID);
+ if (ret >= 0) {
+ printf("Unexpectedly scale up successfully the freq to max on "
+ "lcore %u\n", TEST_POWER_LCORE_INVALID);
+ return -1;
+ }
+ ret = rte_power_freq_max(TEST_POWER_LCORE_ID);
+ if (ret < 0) {
+ printf("Fail to scale up the freq to max on lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /* Check the current frequency */
+ ret = check_cur_freq(TEST_POWER_LCORE_ID, 0);
+ if (ret < 0)
+ return -1;
+
+ return 0;
+}
+
+/* Check rte_power_freq_min() */
+static int
+check_power_freq_min(void)
+{
+ int ret;
+
+ /* test with an invalid lcore id */
+ ret = rte_power_freq_min(TEST_POWER_LCORE_INVALID);
+ if (ret >= 0) {
+ printf("Unexpectedly scale down successfully the freq to min "
+ "on lcore %u\n", TEST_POWER_LCORE_INVALID);
+ return -1;
+ }
+ ret = rte_power_freq_min(TEST_POWER_LCORE_ID);
+ if (ret < 0) {
+ printf("Fail to scale down the freq to min on lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /* Check the current frequency */
+ ret = check_cur_freq(TEST_POWER_LCORE_ID, total_freq_num - 1);
+ if (ret < 0)
+ return -1;
+
+ return 0;
+}
+
+int
+test_power(void)
+{
+ int ret = -1;
+
+ /* test of init power management for an invalid lcore */
+ ret = rte_power_init(TEST_POWER_LCORE_INVALID);
+ if (ret == 0) {
+ printf("Unexpectedly initialise power management successfully "
+ "for lcore %u\n", TEST_POWER_LCORE_INVALID);
+ return -1;
+ }
+
+ ret = rte_power_init(TEST_POWER_LCORE_ID);
+ if (ret < 0) {
+ printf("Cannot initialise power management for lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /**
+ * test of initialising power management for the lcore which has
+ * been initialised
+ */
+ ret = rte_power_init(TEST_POWER_LCORE_ID);
+ if (ret == 0) {
+ printf("Unexpectedly init successfully power twice on "
+ "lcore %u\n", TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ ret = check_power_freqs();
+ if (ret < 0)
+ goto fail_all;
+
+ ret = check_power_get_freq();
+ if (ret < 0)
+ goto fail_all;
+
+ ret = check_power_set_freq();
+ if (ret < 0)
+ goto fail_all;
+
+ ret = check_power_freq_down();
+ if (ret < 0)
+ goto fail_all;
+
+ ret = check_power_freq_up();
+ if (ret < 0)
+ goto fail_all;
+
+ ret = check_power_freq_max();
+ if (ret < 0)
+ goto fail_all;
+
+ ret = check_power_freq_min();
+ if (ret < 0)
+ goto fail_all;
+
+ ret = rte_power_exit(TEST_POWER_LCORE_ID);
+ if (ret < 0) {
+ printf("Cannot exit power management for lcore %u\n",
+ TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /**
+ * test of exiting power management for the lcore which has been exited
+ */
+ ret = rte_power_exit(TEST_POWER_LCORE_ID);
+ if (ret == 0) {
+ printf("Unexpectedly exit successfully power management twice "
+ "on lcore %u\n", TEST_POWER_LCORE_ID);
+ return -1;
+ }
+
+ /* test of exit power management for an invalid lcore */
+ ret = rte_power_exit(TEST_POWER_LCORE_INVALID);
+ if (ret == 0) {
+ printf("Unpectedly exit power management successfully for "
+ "lcore %u\n", TEST_POWER_LCORE_INVALID);
+ return -1;
+ }
+
+ return 0;
+
+fail_all:
+ rte_power_exit(TEST_POWER_LCORE_ID);
+
+ return -1;
+}
+
+#else /* RTE_LIBRTE_POWER */
+
+int
+test_power(void)
+{
+ printf("The power library is not included in this build\n");
+ return 0;
+}
+
+#endif /* RTE_LIBRTE_POWER */
+
--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2013 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.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <string.h>
+#include <sys/queue.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <getopt.h>
+#include <unistd.h>
+#include <signal.h>
+
+#include <rte_common.h>
+#include <rte_byteorder.h>
+#include <rte_log.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_prefetch.h>
+#include <rte_lcore.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_tcp.h>
+#include <rte_udp.h>
+#include <rte_string_fns.h>
+#include <rte_timer.h>
+#include <rte_power.h>
+
+#include "main.h"
+
+#define RTE_LOGTYPE_L3FWD_POWER RTE_LOGTYPE_USER1
+
+#define MAX_PKT_BURST 32
+
+#define MIN_ZERO_POLL_COUNT 5
+
+/* around 100ms at 2 Ghz */
+#define TIMER_RESOLUTION_CYCLES 200000000ULL
+/* 100 ms interval */
+#define TIMER_NUMBER_PER_SECOND 10
+/* 100000 us */
+#define SCALING_PERIOD (1000000/TIMER_NUMBER_PER_SECOND)
+#define SCALING_DOWN_TIME_RATIO_THRESHOLD 0.25
+
+#define APP_LOOKUP_EXACT_MATCH 0
+#define APP_LOOKUP_LPM 1
+#define DO_RFC_1812_CHECKS
+
+#ifndef APP_LOOKUP_METHOD
+#define APP_LOOKUP_METHOD APP_LOOKUP_LPM
+#endif
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+#include <rte_hash.h>
+#elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
+#include <rte_lpm.h>
+#else
+#error "APP_LOOKUP_METHOD set to incorrect value"
+#endif
+
+#ifndef IPv6_BYTES
+#define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\
+ "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
+#define IPv6_BYTES(addr) \
+ addr[0], addr[1], addr[2], addr[3], \
+ addr[4], addr[5], addr[6], addr[7], \
+ addr[8], addr[9], addr[10], addr[11],\
+ addr[12], addr[13],addr[14], addr[15]
+#endif
+
+#define MAX_JUMBO_PKT_LEN 9600
+
+#define IPV6_ADDR_LEN 16
+
+#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
+ * per lcore and mtable per port per lcore. RTE_MAX is used to ensure that
+ * NB_MBUF never goes below a minimum value of 8192.
+ */
+
+#define NB_MBUF RTE_MAX ( \
+ (nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT + \
+ nb_ports*nb_lcores*MAX_PKT_BURST + \
+ nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT + \
+ 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
+
+/* Configure how many packets ahead to prefetch, when reading packets */
+#define PREFETCH_OFFSET 3
+
+/*
+ * Configurable number of RX/TX ring descriptors
+ */
+#define RTE_TEST_RX_DESC_DEFAULT 128
+#define RTE_TEST_TX_DESC_DEFAULT 512
+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];
+
+/* mask of enabled ports */
+static uint32_t enabled_port_mask = 0;
+/* Ports set in promiscuous mode off by default. */
+static int promiscuous_on = 0;
+/* NUMA is enabled by default. */
+static int numa_on = 1;
+
+enum freq_scale_hint_t
+{
+ FREQ_LOWER = -1,
+ FREQ_CURRENT = 0,
+ FREQ_HIGHER = 1,
+ 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;
+ uint8_t queue_id;
+ enum freq_scale_hint_t freq_up_hint;
+ uint32_t zero_rx_packet_count;
+ uint32_t idle_hint;
+} __rte_cache_aligned;
+
+#define MAX_RX_QUEUE_PER_LCORE 16
+#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;
+
+static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
+static struct lcore_params lcore_params_array_default[] = {
+ {0, 0, 2},
+ {0, 1, 2},
+ {0, 2, 2},
+ {1, 0, 2},
+ {1, 1, 2},
+ {1, 2, 2},
+ {2, 0, 2},
+ {3, 0, 3},
+ {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]);
+
+static struct rte_eth_conf port_conf = {
+ .rxmode = {
+ .max_rx_pkt_len = 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 */
+ },
+ .rx_adv_conf = {
+ .rss_conf = {
+ .rss_key = NULL,
+ .rss_hf = ETH_RSS_IPV4 | ETH_RSS_IPV6,
+ },
+ },
+ .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,
+};
+
+static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
+
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+
+#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+#include <rte_hash_crc.h>
+#define DEFAULT_HASH_FUNC rte_hash_crc
+#else
+#include <rte_jhash.h>
+#define DEFAULT_HASH_FUNC rte_jhash
+#endif
+
+struct ipv4_5tuple {
+ uint32_t ip_dst;
+ uint32_t ip_src;
+ uint16_t port_dst;
+ uint16_t port_src;
+ uint8_t proto;
+} __attribute__((__packed__));
+
+struct ipv6_5tuple {
+ uint8_t ip_dst[IPV6_ADDR_LEN];
+ uint8_t ip_src[IPV6_ADDR_LEN];
+ uint16_t port_dst;
+ uint16_t port_src;
+ uint8_t proto;
+} __attribute__((__packed__));
+
+struct ipv4_l3fwd_route {
+ struct ipv4_5tuple key;
+ uint8_t if_out;
+};
+
+struct ipv6_l3fwd_route {
+ struct ipv6_5tuple key;
+ uint8_t if_out;
+};
+
+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},
+};
+
+static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
+ {
+ {
+ {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
+ {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x02, 0x1e, 0x67, 0xff, 0xfe, 0x0d, 0xb6, 0x0a},
+ 1, 10, IPPROTO_UDP
+ }, 4
+ },
+};
+
+typedef struct rte_hash lookup_struct_t;
+static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
+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;
+#endif
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
+struct ipv4_l3fwd_route {
+ uint32_t ip;
+ uint8_t depth;
+ uint8_t if_out;
+};
+
+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},
+};
+
+#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;
+static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
+#endif
+
+struct lcore_conf {
+ uint16_t n_rx_queue;
+ struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
+ uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
+ struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
+ lookup_struct_t * ipv4_lookup_struct;
+ lookup_struct_t * ipv6_lookup_struct;
+} __rte_cache_aligned;
+
+struct lcore_stats {
+ /* total sleep time in ms since last frequency scaling down */
+ uint32_t sleep_time;
+ /* number of long sleep recently */
+ uint32_t nb_long_sleep;
+ /* freq. scaling up trend */
+ uint32_t trend;
+ /* total packet processed recently */
+ uint64_t nb_rx_processed;
+ /* total iterations looped recently */
+ uint64_t nb_iteration_looped;
+ uint32_t padding[9];
+} __rte_cache_aligned;
+
+static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned;
+static struct lcore_stats stats[RTE_MAX_LCORE] __rte_cache_aligned;
+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, uint32_t rx_ring_length);
+
+/* 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);
+ }
+ }
+
+ 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)
+{
+ uint64_t hz;
+ float sleep_time_ratio;
+ unsigned lcore_id = rte_lcore_id();
+
+ /* 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);
+ else if ( (unsigned)(stats[lcore_id].nb_rx_processed /
+ 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);
+
+ /**
+ * initialize another timer according to current frequency to ensure
+ * timer interval is relatively fixed.
+ */
+ hz = rte_get_timer_hz();
+ rte_timer_reset(&power_timers[lcore_id], hz/TIMER_NUMBER_PER_SECOND,
+ SINGLE, lcore_id, power_timer_cb, NULL);
+
+ stats[lcore_id].nb_rx_processed = 0;
+ stats[lcore_id].nb_iteration_looped = 0;
+
+ 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)
+{
+ 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;
+ return 0;
+}
+
+#ifdef DO_RFC_1812_CHECKS
+static inline int
+is_valid_ipv4_pkt(struct 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))
+ return -1;
+
+ /* 2. The IP checksum must be correct. */
+ /* this is checked in H/W */
+
+ /*
+ * 3. The IP version number must be 4. If the version number is not 4
+ * then the packet may be another version of IP, such as IPng or
+ * ST-II.
+ */
+ if (((pkt->version_ihl) >> 4) != 4)
+ return -3;
+ /*
+ * 4. The IP header length field must be large enough to hold the
+ * minimum length legal IP datagram (20 bytes = 5 words).
+ */
+ if ((pkt->version_ihl & 0xf) < 5)
+ return -4;
+
+ /*
+ * 5. The IP total length field must be large enough to hold the IP
+ * 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))
+ return -5;
+
+ return 0;
+}
+#endif
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+static void
+print_ipv4_key(struct ipv4_5tuple key)
+{
+ printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, "
+ "proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src,
+ key.port_dst, key.port_src, key.proto);
+}
+static void
+print_ipv6_key(struct ipv6_5tuple key)
+{
+ printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", "
+ "port dst = %d, port src = %d, proto = %d\n",
+ IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src),
+ key.port_dst, key.port_src, key.proto);
+}
+
+static inline uint8_t
+get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
+ lookup_struct_t * ipv4_l3fwd_lookup_struct)
+{
+ struct ipv4_5tuple key;
+ struct tcp_hdr *tcp;
+ struct udp_hdr *udp;
+ int ret = 0;
+
+ key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
+ key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
+ key.proto = ipv4_hdr->next_proto_id;
+
+ switch (ipv4_hdr->next_proto_id) {
+ case IPPROTO_TCP:
+ tcp = (struct tcp_hdr *)((unsigned char *)ipv4_hdr +
+ sizeof(struct 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));
+ key.port_dst = rte_be_to_cpu_16(udp->dst_port);
+ key.port_src = rte_be_to_cpu_16(udp->src_port);
+ break;
+
+ default:
+ key.port_dst = 0;
+ key.port_src = 0;
+ break;
+ }
+
+ /* 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]);
+}
+
+static inline uint8_t
+get_ipv6_dst_port(struct ipv6_hdr *ipv6_hdr, uint8_t portid,
+ lookup_struct_t *ipv6_l3fwd_lookup_struct)
+{
+ struct ipv6_5tuple key;
+ struct tcp_hdr *tcp;
+ struct udp_hdr *udp;
+ int ret = 0;
+
+ memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN);
+ memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN);
+
+ key.proto = ipv6_hdr->proto;
+
+ switch (ipv6_hdr->proto) {
+ case IPPROTO_TCP:
+ tcp = (struct tcp_hdr *)((unsigned char *) ipv6_hdr +
+ sizeof(struct 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));
+ key.port_dst = rte_be_to_cpu_16(udp->dst_port);
+ key.port_src = rte_be_to_cpu_16(udp->src_port);
+ break;
+
+ default:
+ key.port_dst = 0;
+ key.port_src = 0;
+ break;
+ }
+
+ /* 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]);
+}
+#endif
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
+static inline uint8_t
+get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
+ lookup_struct_t *ipv4_l3fwd_lookup_struct)
+{
+ uint8_t next_hop;
+
+ return (uint8_t) ((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,
+ struct lcore_conf *qconf)
+{
+ struct ether_hdr *eth_hdr;
+ struct ipv4_hdr *ipv4_hdr;
+ void *d_addr_bytes;
+ uint8_t dst_port;
+
+ eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
+
+ if (m->ol_flags & PKT_RX_IPV4_HDR) {
+ /* Handle IPv4 headers.*/
+ ipv4_hdr =
+ (struct ipv4_hdr *)(rte_pktmbuf_mtod(m, unsigned char*)
+ + sizeof(struct 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) {
+ rte_pktmbuf_free(m);
+ return;
+ }
+#endif
+
+ dst_port = get_ipv4_dst_port(ipv4_hdr, portid,
+ qconf->ipv4_lookup_struct);
+ if (dst_port >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port) == 0)
+ dst_port = portid;
+
+ /* 02:00:00:00:00:xx */
+ d_addr_bytes = ð_hdr->d_addr.addr_bytes[0];
+ *((uint64_t *)d_addr_bytes) =
+ 0x000000000002 + ((uint64_t)dst_port << 40);
+
+#ifdef DO_RFC_1812_CHECKS
+ /* Update time to live and header checksum */
+ --(ipv4_hdr->time_to_live);
+ ++(ipv4_hdr->hdr_checksum);
+#endif
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
+
+ send_single_packet(m, dst_port);
+ }
+ else {
+ /* Handle IPv6 headers.*/
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+ struct ipv6_hdr *ipv6_hdr;
+
+ ipv6_hdr =
+ (struct ipv6_hdr *)(rte_pktmbuf_mtod(m, unsigned char*)
+ + sizeof(struct ether_hdr));
+
+ dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
+ qconf->ipv6_lookup_struct);
+
+ if (dst_port >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port) == 0)
+ dst_port = portid;
+
+ /* 02:00:00:00:00:xx */
+ d_addr_bytes = ð_hdr->d_addr.addr_bytes[0];
+ *((uint64_t *)d_addr_bytes) =
+ 0x000000000002 + ((uint64_t)dst_port << 40);
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port], ð_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
+ }
+
+}
+
+#define SLEEP_GEAR1_THRESHOLD 100
+#define SLEEP_GEAR2_THRESHOLD 1000
+
+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;
+}
+
+static inline enum freq_scale_hint_t
+power_freq_scaleup_heuristic(unsigned lcore_id, uint32_t rx_ring_length)
+{
+/**
+ * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
+ * per iteration
+ */
+#define FREQ_GEAR1_RX_PACKET_THRESHOLD MAX_PKT_BURST
+#define FREQ_GEAR2_RX_PACKET_THRESHOLD 64
+#define FREQ_GEAR3_RX_PACKET_THRESHOLD 96
+#define FREQ_UP_TREND1_ACC 1
+#define FREQ_UP_TREND2_ACC 100
+#define FREQ_UP_THRESHOLD 10000
+
+ /**
+ * there are received packets to process, staying at C0 state while
+ * trying to scale up frequency depending on how many entries on h/w
+ * queue. Determine frequency scaleup trend based on availiable entries
+ * on Rx queues.
+ */
+ if (rx_ring_length > FREQ_GEAR3_RX_PACKET_THRESHOLD) {
+ stats[lcore_id].trend = 0;
+ return FREQ_HIGHEST;
+ } else if (rx_ring_length > FREQ_GEAR2_RX_PACKET_THRESHOLD)
+ stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
+ else if (rx_ring_length > FREQ_GEAR1_RX_PACKET_THRESHOLD)
+ stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
+
+ if (stats[lcore_id].trend > FREQ_UP_THRESHOLD) {
+ stats[lcore_id].trend = 0;
+ return FREQ_HIGHER;
+ }
+
+ return FREQ_CURRENT;
+}
+
+/* main processing loop */
+static int
+main_loop(__attribute__((unused)) void *dummy)
+{
+ struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+ unsigned 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;
+ struct lcore_conf *qconf;
+ struct lcore_rx_queue *rx_queue;
+ uint32_t rx_ring_length;
+ enum freq_scale_hint_t lcore_scaleup_hint;
+
+ uint32_t lcore_rx_idle_count = 0;
+ uint32_t lcore_idle_hint = 0;
+
+ 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;
+ }
+
+ 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=%hhu "
+ "rxqueueid=%hhu\n", lcore_id, portid, queueid);
+ }
+
+ while (1) {
+ 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;
+ }
+
+ 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;
+ }
+
+ /*
+ * 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 {
+ /**
+ * get availiable descriptor number via MMIO read is costly,
+ * so only do it when recent poll returns maximum number.
+ */
+ if (nb_rx >= MAX_PKT_BURST)
+ rx_ring_length = rte_eth_rx_queue_count(portid, queueid);
+ else
+ rx_ring_length = 0;
+
+ 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,
+ rx_ring_length);
+ }
+
+ /* 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)
+ rte_power_freq_max(lcore_id);
+ else if (lcore_scaleup_hint == FREQ_HIGHER)
+ 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 < SLEEP_GEAR1_THRESHOLD)
+ /**
+ * execute "pause" instruction to avoid context
+ * switch for short sleep.
+ */
+ rte_delay_us(lcore_idle_hint);
+ else
+ /* long sleep force runing thread to suspend */
+ usleep(lcore_idle_hint);
+
+ 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;
+}
+
+static int
+check_port_config(const unsigned nb_ports)
+{
+ 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 (portid >= nb_ports) {
+ printf("port %u is not present on the board\n",
+ portid);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static uint8_t
+get_port_n_rx_queues(const uint8_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;
+ }
+ return (uint8_t)(++queue);
+}
+
+static int
+init_lcore_rx_queues(void)
+{
+ uint16_t i, nb_rx_queue;
+ uint8_t lcore;
+
+ for (i = 0; i < nb_lcore_params; ++i) {
+ lcore = lcore_params[i].lcore_id;
+ nb_rx_queue = lcore_conf[lcore].n_rx_queue;
+ if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
+ printf("error: too many queues (%u) for lcore: %u\n",
+ (unsigned)nb_rx_queue + 1, (unsigned)lcore);
+ return -1;
+ } else {
+ lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
+ lcore_params[i].port_id;
+ lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
+ lcore_params[i].queue_id;
+ lcore_conf[lcore].n_rx_queue++;
+ }
+ }
+ return 0;
+}
+
+/* display usage */
+static void
+print_usage(const char *prgname)
+{
+ printf ("%s [EAL options] -- -p PORTMASK -P"
+ " [--config (port,queue,lcore)[,(port,queue,lcore]]"
+ " [--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"
+ " --no-numa: optional, disable numa awareness\n"
+ " --enable-jumbo: enable jumbo frame"
+ " which max packet len is PKTLEN in decimal (64-9600)\n",
+ prgname);
+}
+
+static int parse_max_pkt_len(const char *pktlen)
+{
+ char *end = NULL;
+ unsigned long len;
+
+ /* parse decimal string */
+ len = strtoul(pktlen, &end, 10);
+ if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
+ return -1;
+
+ if (len == 0)
+ return -1;
+
+ return len;
+}
+
+static int
+parse_portmask(const char *portmask)
+{
+ char *end = NULL;
+ unsigned long pm;
+
+ /* parse hexadecimal string */
+ pm = strtoul(portmask, &end, 16);
+ if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
+ return -1;
+
+ if (pm == 0)
+ return -1;
+
+ return pm;
+}
+
+static int
+parse_config(const char *q_arg)
+{
+ char s[256];
+ const char *p, *p0 = q_arg;
+ char *end;
+ enum fieldnames {
+ FLD_PORT = 0,
+ FLD_QUEUE,
+ FLD_LCORE,
+ _NUM_FLD
+ };
+ unsigned long int_fld[_NUM_FLD];
+ char *str_fld[_NUM_FLD];
+ int i;
+ unsigned size;
+
+ nb_lcore_params = 0;
+
+ while ((p = strchr(p0,'(')) != NULL) {
+ ++p;
+ if((p0 = strchr(p,')')) == NULL)
+ return -1;
+
+ size = p0 - p;
+ if(size >= sizeof(s))
+ return -1;
+
+ rte_snprintf(s, sizeof(s), "%.*s", size, p);
+ if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
+ _NUM_FLD)
+ return -1;
+ for (i = 0; i < _NUM_FLD; i++){
+ errno = 0;
+ int_fld[i] = strtoul(str_fld[i], &end, 0);
+ if (errno != 0 || end == str_fld[i] || int_fld[i] >
+ 255)
+ return -1;
+ }
+ if (nb_lcore_params >= MAX_LCORE_PARAMS) {
+ printf("exceeded max number of lcore params: %hu\n",
+ nb_lcore_params);
+ return -1;
+ }
+ lcore_params_array[nb_lcore_params].port_id =
+ (uint8_t)int_fld[FLD_PORT];
+ lcore_params_array[nb_lcore_params].queue_id =
+ (uint8_t)int_fld[FLD_QUEUE];
+ lcore_params_array[nb_lcore_params].lcore_id =
+ (uint8_t)int_fld[FLD_LCORE];
+ ++nb_lcore_params;
+ }
+ lcore_params = lcore_params_array;
+
+ return 0;
+}
+
+/* Parse the argument given in the command line of the application */
+static int
+parse_args(int argc, char **argv)
+{
+ int opt, ret;
+ char **argvopt;
+ int option_index;
+ char *prgname = argv[0];
+ static struct option lgopts[] = {
+ {"config", 1, 0, 0},
+ {"no-numa", 0, 0, 0},
+ {"enable-jumbo", 0, 0, 0},
+ {NULL, 0, 0, 0}
+ };
+
+ argvopt = argv;
+
+ while ((opt = getopt_long(argc, argvopt, "p:P",
+ lgopts, &option_index)) != EOF) {
+
+ switch (opt) {
+ /* portmask */
+ case 'p':
+ enabled_port_mask = parse_portmask(optarg);
+ if (enabled_port_mask == 0) {
+ printf("invalid portmask\n");
+ print_usage(prgname);
+ return -1;
+ }
+ break;
+ case 'P':
+ printf("Promiscuous mode selected\n");
+ promiscuous_on = 1;
+ break;
+
+ /* long options */
+ case 0:
+ if (!strncmp(lgopts[option_index].name, "config", 6)) {
+ ret = parse_config(optarg);
+ if (ret) {
+ printf("invalid config\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,
+ "enable-jumbo", 12)) {
+ struct option lenopts =
+ {"max-pkt-len", required_argument, \
+ 0, 0};
+
+ printf("jumbo frame is enabled \n");
+ port_conf.rxmode.jumbo_frame = 1;
+
+ /**
+ * if no max-pkt-len set, use the default value
+ * ETHER_MAX_LEN
+ */
+ if (0 == getopt_long(argc, argvopt, "",
+ &lenopts, &option_index)) {
+ ret = parse_max_pkt_len(optarg);
+ if ((ret < 64) ||
+ (ret > MAX_JUMBO_PKT_LEN)){
+ printf("invalid packet "
+ "length\n");
+ print_usage(prgname);
+ return -1;
+ }
+ port_conf.rxmode.max_rx_pkt_len = ret;
+ }
+ printf("set jumbo frame "
+ "max packet length to %u\n",
+ (unsigned int)port_conf.rxmode.max_rx_pkt_len);
+ }
+
+ break;
+
+ default:
+ print_usage(prgname);
+ return -1;
+ }
+ }
+
+ if (optind >= 0)
+ argv[optind-1] = prgname;
+
+ ret = optind-1;
+ optind = 0; /* reset getopt lib */
+ return ret;
+}
+
+static void
+print_ethaddr(const char *name, const struct 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]);
+}
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+static void
+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,
+ };
+
+ 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,
+ };
+
+ unsigned i;
+ int ret;
+ char s[64];
+
+ /* create ipv4 hash */
+ rte_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] =
+ rte_hash_create(&ipv4_l3fwd_hash_params);
+ if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
+ rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
+ "socket %d\n", socketid);
+
+ /* create ipv6 hash */
+ rte_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] =
+ rte_hash_create(&ipv6_l3fwd_hash_params);
+ if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
+ rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
+ "socket %d\n", socketid);
+
+
+ /* populate the ipv4 hash */
+ for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
+ ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
+ (void *) &ipv4_l3fwd_route_array[i].key);
+ if (ret < 0) {
+ rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
+ "l3fwd hash on socket %d\n", i, socketid);
+ }
+ ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out;
+ printf("Hash: Adding key\n");
+ print_ipv4_key(ipv4_l3fwd_route_array[i].key);
+ }
+
+ /* populate the ipv6 hash */
+ for (i = 0; i < IPV6_L3FWD_NUM_ROUTES; i++) {
+ ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
+ (void *) &ipv6_l3fwd_route_array[i].key);
+ if (ret < 0) {
+ rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
+ "l3fwd hash on socket %d\n", i, socketid);
+ }
+ ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out;
+ printf("Hash: Adding key\n");
+ print_ipv6_key(ipv6_l3fwd_route_array[i].key);
+ }
+}
+#endif
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
+static void
+setup_lpm(int socketid)
+{
+ unsigned i;
+ int ret;
+ 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);
+ 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++) {
+ ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
+ ipv4_l3fwd_route_array[i].ip,
+ ipv4_l3fwd_route_array[i].depth,
+ ipv4_l3fwd_route_array[i].if_out);
+
+ if (ret < 0) {
+ rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
+ "l3fwd LPM table on socket %d\n",
+ i, socketid);
+ }
+
+ printf("LPM: Adding route 0x%08x / %d (%d)\n",
+ (unsigned)ipv4_l3fwd_route_array[i].ip,
+ ipv4_l3fwd_route_array[i].depth,
+ ipv4_l3fwd_route_array[i].if_out);
+ }
+}
+#endif
+
+static int
+init_mem(unsigned nb_mbuf)
+{
+ struct lcore_conf *qconf;
+ int socketid;
+ unsigned lcore_id;
+ char s[64];
+
+ for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+ if (rte_lcore_is_enabled(lcore_id) == 0)
+ continue;
+
+ if (numa_on)
+ socketid = rte_lcore_to_socket_id(lcore_id);
+ else
+ socketid = 0;
+
+ if (socketid >= NB_SOCKETS) {
+ rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is "
+ "out of range %d\n", socketid,
+ lcore_id, NB_SOCKETS);
+ }
+ if (pktmbuf_pool[socketid] == NULL) {
+ rte_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);
+ if (pktmbuf_pool[socketid] == NULL)
+ rte_exit(EXIT_FAILURE,
+ "Cannot init mbuf pool on socket %d\n",
+ socketid);
+ else
+ printf("Allocated mbuf pool on socket %d\n",
+ socketid);
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
+ setup_lpm(socketid);
+#else
+ setup_hash(socketid);
+#endif
+ }
+ qconf = &lcore_conf[lcore_id];
+ qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+ qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
+#endif
+ }
+ return 0;
+}
+
+/* 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)
+{
+#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;
+ struct rte_eth_link link;
+
+ 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++) {
+ if ((port_mask & (1 << portid)) == 0)
+ continue;
+ memset(&link, 0, sizeof(link));
+ rte_eth_link_get_nowait(portid, &link);
+ /* print link status if flag set */
+ if (print_flag == 1) {
+ if (link.link_status)
+ printf("Port %d Link Up - speed %u "
+ "Mbps - %s\n", (uint8_t)portid,
+ (unsigned)link.link_speed,
+ (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
+ ("full-duplex") : ("half-duplex\n"));
+ 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) {
+ all_ports_up = 0;
+ break;
+ }
+ }
+ /* after finally printing all link status, get out */
+ if (print_flag == 1)
+ break;
+
+ if (all_ports_up == 0) {
+ printf(".");
+ fflush(stdout);
+ rte_delay_ms(CHECK_INTERVAL);
+ }
+
+ /* set the print_flag if all ports up or timeout */
+ if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
+ print_flag = 1;
+ printf("done\n");
+ }
+ }
+}
+
+int
+MAIN(int argc, char **argv)
+{
+ struct lcore_conf *qconf;
+ int ret;
+ unsigned 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;
+
+ /* catch SIGINT and restore cpufreq governor to ondemand */
+ signal(SIGINT, signal_exit_now);
+
+ /* init EAL */
+ ret = rte_eal_init(argc, argv);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
+ argc -= ret;
+ argv += ret;
+
+ /* init RTE timer library to be used late */
+ rte_timer_subsystem_init();
+
+ /* parse application arguments (after the EAL ones) */
+ ret = parse_args(argc, argv);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
+
+ if (check_lcore_params() < 0)
+ rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
+
+ ret = init_lcore_rx_queues();
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
+
+
+ /* init driver(s) */
+ if (rte_pmd_init_all() < 0)
+ rte_exit(EXIT_FAILURE, "Cannot init pmd\n");
+
+ 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)
+ rte_exit(EXIT_FAILURE, "check_port_config failed\n");
+
+ nb_lcores = rte_lcore_count();
+
+ /* initialize all ports */
+ for (portid = 0; portid < nb_ports; portid++) {
+ /* skip ports that are not enabled */
+ if ((enabled_port_mask & (1 << portid)) == 0) {
+ printf("\nSkipping disabled port %d\n", portid);
+ continue;
+ }
+
+ /* init port */
+ printf("Initializing port %d ... ", portid );
+ fflush(stdout);
+
+ nb_rx_queue = get_port_n_rx_queues(portid);
+ n_tx_queue = nb_lcores;
+ if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
+ n_tx_queue = MAX_TX_QUEUE_PER_PORT;
+ printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
+ nb_rx_queue, (unsigned)n_tx_queue );
+ ret = rte_eth_dev_configure(portid, nb_rx_queue,
+ (uint16_t)n_tx_queue, &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]);
+ print_ethaddr(" Address:", &ports_eth_addr[portid]);
+ printf(", ");
+
+ /* init memory */
+ ret = init_mem(NB_MBUF);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "init_mem failed\n");
+
+ /* 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 (numa_on)
+ socketid = \
+ (uint8_t)rte_lcore_to_socket_id(lcore_id);
+ else
+ socketid = 0;
+
+ printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
+ fflush(stdout);
+ ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
+ socketid, &tx_conf);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE,
+ "rte_eth_tx_queue_setup: err=%d, "
+ "port=%d\n", ret, portid);
+
+ qconf = &lcore_conf[lcore_id];
+ qconf->tx_queue_id[portid] = queueid;
+ queueid++;
+ }
+ printf("\n");
+ }
+
+ 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_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);
+
+ 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) {
+ portid = qconf->rx_queue_list[queue].port_id;
+ queueid = qconf->rx_queue_list[queue].queue_id;
+
+ if (numa_on)
+ socketid = \
+ (uint8_t)rte_lcore_to_socket_id(lcore_id);
+ else
+ socketid = 0;
+
+ printf("rxq=%d,%d,%d ", portid, queueid, socketid);
+ fflush(stdout);
+
+ ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
+ socketid, &rx_conf, pktmbuf_pool[socketid]);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE,
+ "rte_eth_rx_queue_setup: err=%d, "
+ "port=%d\n", ret, portid);
+ }
+ }
+
+ printf("\n");
+
+ /* start ports */
+ for (portid = 0; portid < nb_ports; portid++) {
+ if ((enabled_port_mask & (1 << portid)) == 0) {
+ continue;
+ }
+ /* Start device */
+ ret = rte_eth_dev_start(portid);
+ 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);
+ }
+
+ 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);
+ RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+ if (rte_eal_wait_lcore(lcore_id) < 0)
+ return -1;
+ }
+
+ return 0;
+}
--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2013 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.
+ *
+ */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+#include <limits.h>
+
+#include <rte_memcpy.h>
+#include <rte_atomic.h>
+
+#include "rte_power.h"
+
+#ifdef RTE_LIBRTE_POWER_DEBUG
+#define POWER_DEBUG_TRACE(fmt, args...) do { \
+ RTE_LOG(ERR, POWER, "%s: " fmt, __func__, ## args); \
+ } while (0)
+#else
+#define POWER_DEBUG_TRACE(fmt, args...)
+#endif
+
+#define FOPEN_OR_ERR_RET(f, retval) do { \
+ if ((f) == NULL) { \
+ RTE_LOG(ERR, POWER, "File not openned\n"); \
+ return (retval); \
+ } \
+} while(0)
+
+#define FOPS_OR_NULL_GOTO(ret, label) do { \
+ if ((ret) == NULL) { \
+ RTE_LOG(ERR, POWER, "fgets returns nothing\n"); \
+ goto label; \
+ } \
+} while(0)
+
+#define FOPS_OR_ERR_GOTO(ret, label) do { \
+ if ((ret) < 0) { \
+ RTE_LOG(ERR, POWER, "File operations failed\n"); \
+ goto label; \
+ } \
+} while(0)
+
+#define STR_SIZE 1024
+#define POWER_CONVERT_TO_DECIMAL 10
+
+#define POWER_GOVERNOR_USERSPACE "userspace"
+#define POWER_SYSFILE_GOVERNOR \
+ "/sys/devices/system/cpu/cpu%u/cpufreq/scaling_governor"
+#define POWER_SYSFILE_AVAIL_FREQ \
+ "/sys/devices/system/cpu/cpu%u/cpufreq/scaling_available_frequencies"
+#define POWER_SYSFILE_SETSPEED \
+ "/sys/devices/system/cpu/cpu%u/cpufreq/scaling_setspeed"
+
+enum power_state {
+ POWER_IDLE = 0,
+ POWER_ONGOING,
+ POWER_USED,
+ POWER_UNKNOWN
+};
+
+/**
+ * Power info per lcore.
+ */
+struct rte_power_info {
+ unsigned lcore_id; /**< Logical core id */
+ uint32_t freqs[RTE_MAX_LCORE_FREQS]; /**< Frequency array */
+ uint32_t nb_freqs; /**< number of available freqs */
+ FILE *f; /**< FD of scaling_setspeed */
+ char governor_ori[32]; /**< Original governor name */
+ uint32_t curr_idx; /**< Freq index in freqs array */
+ volatile uint32_t state; /**< Power in use state */
+} __rte_cache_aligned;
+
+static struct rte_power_info lcore_power_info[RTE_MAX_LCORE];
+
+/**
+ * It is to set specific freq for specific logical core, according to the index
+ * of supported frequencies.
+ */
+static int
+set_freq_internal(struct rte_power_info *pi, uint32_t idx)
+{
+ if (idx >= RTE_MAX_LCORE_FREQS || idx >= pi->nb_freqs) {
+ RTE_LOG(ERR, POWER, "Invalid frequency index %u, which "
+ "should be less than %u\n", idx, pi->nb_freqs);
+ return -1;
+ }
+
+ /* Check if it is the same as current */
+ if (idx == pi->curr_idx)
+ return 0;
+
+ POWER_DEBUG_TRACE("Freqency[%u] %u to be set for lcore %u\n",
+ idx, pi->freqs[idx], pi->lcore_id);
+ if (fseek(pi->f, 0, SEEK_SET) < 0) {
+ RTE_LOG(ERR, POWER, "Fail to set file position indicator to 0 "
+ "for setting frequency for lcore %u\n", pi->lcore_id);
+ return -1;
+ }
+ if (fprintf(pi->f, "%u", pi->freqs[idx]) < 0) {
+ RTE_LOG(ERR, POWER, "Fail to write new frequency for "
+ "lcore %u\n", pi->lcore_id);
+ return -1;
+ }
+ fflush(pi->f);
+ pi->curr_idx = idx;
+
+ return 1;
+}
+
+/**
+ * It is to check the current scaling governor by reading sys file, and then
+ * set it into 'userspace' if it is not by writing the sys file. The original
+ * governor will be saved for rolling back.
+ */
+static int
+power_set_governor_userspace(struct rte_power_info *pi)
+{
+ FILE *f;
+ int ret = -1;
+ char buf[BUFSIZ];
+ char fullpath[PATH_MAX];
+ char *s;
+ int val;
+
+ rte_snprintf(fullpath, sizeof(fullpath), POWER_SYSFILE_GOVERNOR,
+ pi->lcore_id);
+ f = fopen(fullpath, "rw+");
+ FOPEN_OR_ERR_RET(f, ret);
+
+ s = fgets(buf, sizeof(buf), f);
+ FOPS_OR_NULL_GOTO(s, out);
+
+ /* Check if current governor is userspace */
+ if (strncmp(buf, POWER_GOVERNOR_USERSPACE,
+ sizeof(POWER_GOVERNOR_USERSPACE)) == 0) {
+ ret = 0;
+ POWER_DEBUG_TRACE("Power management governor of lcore %u is "
+ "already userspace\n", pi->lcore_id);
+ goto out;
+ }
+ /* Save the original governor */
+ rte_snprintf(pi->governor_ori, sizeof(pi->governor_ori), "%s", buf);
+
+ /* Write 'userspace' to the governor */
+ val = fseek(f, 0, SEEK_SET);
+ FOPS_OR_ERR_GOTO(val, out);
+
+ val = fputs(POWER_GOVERNOR_USERSPACE, f);
+ FOPS_OR_ERR_GOTO(val, out);
+
+ ret = 0;
+ RTE_LOG(INFO, POWER, "Power management governor of lcore %u has been "
+ "set to user space successfully\n", pi->lcore_id);
+out:
+ fclose(f);
+
+ return ret;
+}
+
+/**
+ * It is to get the available frequencies of the specific lcore by reading the
+ * sys file.
+ */
+static int
+power_get_available_freqs(struct rte_power_info *pi)
+{
+ FILE *f;
+ int ret = -1, i, count;
+ char *p;
+ char buf[BUFSIZ];
+ char fullpath[PATH_MAX];
+ char *freqs[RTE_MAX_LCORE_FREQS];
+ char *s;
+
+ rte_snprintf(fullpath, sizeof(fullpath), POWER_SYSFILE_AVAIL_FREQ,
+ pi->lcore_id);
+ f = fopen(fullpath, "r");
+ FOPEN_OR_ERR_RET(f, ret);
+
+ s = fgets(buf, sizeof(buf), f);
+ FOPS_OR_NULL_GOTO(s, out);
+
+ /* Strip the line break if there is */
+ p = strchr(buf, '\n');
+ if (p != NULL)
+ *p = 0;
+
+ /* Split string into at most RTE_MAX_LCORE_FREQS frequencies */
+ count = rte_strsplit(buf, sizeof(buf), freqs,
+ RTE_MAX_LCORE_FREQS, ' ');
+ if (count <= 0) {
+ RTE_LOG(ERR, POWER, "No available frequency in "
+ ""POWER_SYSFILE_AVAIL_FREQ"\n", pi->lcore_id);
+ goto out;
+ }
+ if (count >= RTE_MAX_LCORE_FREQS) {
+ RTE_LOG(ERR, POWER, "Too many available frequencies : %d\n",
+ count);
+ goto out;
+ }
+
+ /* Store the available frequncies into power context */
+ for (i = 0, pi->nb_freqs = 0; i < count; i++) {
+ POWER_DEBUG_TRACE("Lcore %u frequency[%d]: %s\n", pi->lcore_id,
+ i, freqs[i]);
+ pi->freqs[pi->nb_freqs++] = strtoul(freqs[i], &p,
+ POWER_CONVERT_TO_DECIMAL);
+ }
+
+ ret = 0;
+ POWER_DEBUG_TRACE("%d frequencie(s) of lcore %u are available\n",
+ count, pi->lcore_id);
+out:
+ fclose(f);
+
+ return ret;
+}
+
+/**
+ * It is to fopen the sys file for the future setting the lcore frequency.
+ */
+static int
+power_init_for_setting_freq(struct rte_power_info *pi)
+{
+ FILE *f;
+ char fullpath[PATH_MAX];
+ char buf[BUFSIZ];
+ uint32_t i, freq;
+ char *s;
+
+ rte_snprintf(fullpath, sizeof(fullpath), POWER_SYSFILE_SETSPEED,
+ pi->lcore_id);
+ f = fopen(fullpath, "rw+");
+ FOPEN_OR_ERR_RET(f, -1);
+
+ s = fgets(buf, sizeof(buf), f);
+ FOPS_OR_NULL_GOTO(s, out);
+
+ freq = strtoul(buf, NULL, POWER_CONVERT_TO_DECIMAL);
+ for (i = 0; i < pi->nb_freqs; i++) {
+ if (freq == pi->freqs[i]) {
+ pi->curr_idx = i;
+ pi->f = f;
+ return 0;
+ }
+ }
+
+out:
+ fclose(f);
+
+ return -1;
+}
+
+int
+rte_power_init(unsigned lcore_id)
+{
+ struct rte_power_info *pi;
+
+ if (lcore_id >= RTE_MAX_LCORE) {
+ RTE_LOG(ERR, POWER, "Lcore id %u can not exceeds %u\n",
+ lcore_id, RTE_MAX_LCORE - 1U);
+ return -1;
+ }
+
+ pi = &lcore_power_info[lcore_id];
+ if (rte_atomic32_cmpset(&(pi->state), POWER_IDLE, POWER_ONGOING)
+ == 0) {
+ RTE_LOG(INFO, POWER, "Power management of lcore %u is "
+ "in use\n", lcore_id);
+ return -1;
+ }
+
+ pi->lcore_id = lcore_id;
+ /* Check and set the governor */
+ if (power_set_governor_userspace(pi) < 0) {
+ RTE_LOG(ERR, POWER, "Cannot set governor of lcore %u to "
+ "userspace\n", lcore_id);
+ goto fail;
+ }
+
+ /* Get the available frequencies */
+ if (power_get_available_freqs(pi) < 0) {
+ RTE_LOG(ERR, POWER, "Cannot get available frequencies of "
+ "lcore %u\n", lcore_id);
+ goto fail;
+ }
+
+ /* Init for setting lcore frequency */
+ if (power_init_for_setting_freq(pi) < 0) {
+ RTE_LOG(ERR, POWER, "Cannot init for setting frequency for "
+ "lcore %u\n", lcore_id);
+ goto fail;
+ }
+
+ /* Set freq to max by default */
+ if (rte_power_freq_max(lcore_id) < 0) {
+ RTE_LOG(ERR, POWER, "Cannot set frequency of lcore %u "
+ "to max\n", lcore_id);
+ goto fail;
+ }
+
+ RTE_LOG(INFO, POWER, "Initialized successfully for lcore %u "
+ "power manamgement\n", lcore_id);
+ rte_atomic32_cmpset(&(pi->state), POWER_ONGOING, POWER_USED);
+
+ return 0;
+
+fail:
+ rte_atomic32_cmpset(&(pi->state), POWER_ONGOING, POWER_UNKNOWN);
+
+ return -1;
+}
+
+/**
+ * It is to check the governor and then set the original governor back if
+ * needed by writing the the sys file.
+ */
+static int
+power_set_governor_original(struct rte_power_info *pi)
+{
+ FILE *f;
+ int ret = -1;
+ char buf[BUFSIZ];
+ char fullpath[PATH_MAX];
+ char *s;
+ int val;
+
+ rte_snprintf(fullpath, sizeof(fullpath), POWER_SYSFILE_GOVERNOR,
+ pi->lcore_id);
+ f = fopen(fullpath, "rw+");
+ FOPEN_OR_ERR_RET(f, ret);
+
+ s = fgets(buf, sizeof(buf), f);
+ FOPS_OR_NULL_GOTO(s, out);
+
+ /* Check if the governor to be set is the same as current */
+ if (strncmp(buf, pi->governor_ori, sizeof(pi->governor_ori)) == 0) {
+ ret = 0;
+ POWER_DEBUG_TRACE("Power management governor of lcore %u "
+ "has already been set to %s\n",
+ pi->lcore_id, pi->governor_ori);
+ goto out;
+ }
+
+ /* Write back the original governor */
+ val = fseek(f, 0, SEEK_SET);
+ FOPS_OR_ERR_GOTO(val, out);
+
+ val = fputs(pi->governor_ori, f);
+ FOPS_OR_ERR_GOTO(val, out);
+
+ ret = 0;
+ RTE_LOG(INFO, POWER, "Power manamgement governor of lcore %u "
+ "has been set back to %s successfully\n",
+ pi->lcore_id, pi->governor_ori);
+out:
+ fclose(f);
+
+ return ret;
+}
+
+int
+rte_power_exit(unsigned lcore_id)
+{
+ struct rte_power_info *pi;
+
+ if (lcore_id >= RTE_MAX_LCORE) {
+ RTE_LOG(ERR, POWER, "Lcore id %u can not exceeds %u\n",
+ lcore_id, RTE_MAX_LCORE - 1U);
+ return -1;
+ }
+ pi = &lcore_power_info[lcore_id];
+ if (rte_atomic32_cmpset(&(pi->state), POWER_USED, POWER_ONGOING)
+ == 0) {
+ RTE_LOG(INFO, POWER, "Power management of lcore %u is "
+ "not used\n", lcore_id);
+ return -1;
+ }
+
+ /* Close FD of setting freq */
+ fclose(pi->f);
+ pi->f = NULL;
+
+ /* Set the governor back to the original */
+ if (power_set_governor_original(pi) < 0) {
+ RTE_LOG(ERR, POWER, "Cannot set the governor of %u back "
+ "to the original\n", lcore_id);
+ goto fail;
+ }
+
+ RTE_LOG(INFO, POWER, "Power management of lcore %u has exited from "
+ "'userspace' mode and been set back to the "
+ "original\n", lcore_id);
+ rte_atomic32_cmpset(&(pi->state), POWER_ONGOING, POWER_IDLE);
+
+ return 0;
+
+fail:
+ rte_atomic32_cmpset(&(pi->state), POWER_ONGOING, POWER_UNKNOWN);
+
+ return -1;
+}
+
+uint32_t
+rte_power_freqs(unsigned lcore_id, uint32_t *freqs, uint32_t num)
+{
+ struct rte_power_info *pi;
+
+ if (lcore_id >= RTE_MAX_LCORE || !freqs) {
+ RTE_LOG(ERR, POWER, "Invalid input parameter\n");
+ return 0;
+ }
+
+ pi = &lcore_power_info[lcore_id];
+ if (num < pi->nb_freqs) {
+ RTE_LOG(ERR, POWER, "Buffer size is not enough\n");
+ return 0;
+ }
+ rte_memcpy(freqs, pi->freqs, pi->nb_freqs * sizeof(uint32_t));
+
+ return pi->nb_freqs;
+}
+
+uint32_t
+rte_power_get_freq(unsigned lcore_id)
+{
+ if (lcore_id >= RTE_MAX_LCORE) {
+ RTE_LOG(ERR, POWER, "Invalid lcore ID\n");
+ return RTE_POWER_INVALID_FREQ_INDEX;
+ }
+
+ return lcore_power_info[lcore_id].curr_idx;
+}
+
+int
+rte_power_set_freq(unsigned lcore_id, uint32_t index)
+{
+ if (lcore_id >= RTE_MAX_LCORE) {
+ RTE_LOG(ERR, POWER, "Invalid lcore ID\n");
+ return -1;
+ }
+
+ return set_freq_internal(&(lcore_power_info[lcore_id]), index);
+}
+
+int
+rte_power_freq_down(unsigned lcore_id)
+{
+ struct rte_power_info *pi;
+
+ if (lcore_id >= RTE_MAX_LCORE) {
+ RTE_LOG(ERR, POWER, "Invalid lcore ID\n");
+ return -1;
+ }
+
+ pi = &lcore_power_info[lcore_id];
+ if (pi->curr_idx + 1 == pi->nb_freqs)
+ return 0;
+
+ /* Frequencies in the array are from high to low. */
+ return set_freq_internal(pi, pi->curr_idx + 1);
+}
+
+int
+rte_power_freq_up(unsigned lcore_id)
+{
+ struct rte_power_info *pi;
+
+ if (lcore_id >= RTE_MAX_LCORE) {
+ RTE_LOG(ERR, POWER, "Invalid lcore ID\n");
+ return -1;
+ }
+
+ pi = &lcore_power_info[lcore_id];
+ if (pi->curr_idx == 0)
+ return 0;
+
+ /* Frequencies in the array are from high to low. */
+ return set_freq_internal(pi, pi->curr_idx - 1);
+}
+
+int
+rte_power_freq_max(unsigned lcore_id)
+{
+ if (lcore_id >= RTE_MAX_LCORE) {
+ RTE_LOG(ERR, POWER, "Invalid lcore ID\n");
+ return -1;
+ }
+
+ /* Frequencies in the array are from high to low. */
+ return set_freq_internal(&lcore_power_info[lcore_id], 0);
+}
+
+int
+rte_power_freq_min(unsigned lcore_id)
+{
+ struct rte_power_info *pi;
+
+ if (lcore_id >= RTE_MAX_LCORE) {
+ RTE_LOG(ERR, POWER, "Invalid lcore ID\n");
+ return -1;
+ }
+
+ pi = &lcore_power_info[lcore_id];
+
+ /* Frequencies in the array are from high to low. */
+ return set_freq_internal(pi, pi->nb_freqs - 1);
+}
+
git.droids-corp.org / dpdk.git / commitdiff