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main.c
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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
* Copyright(c) 2016-2021 National Institute of Advanced Industrial
* Science and Technology. 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.
*/
/* vim: set noexpandtab ai: */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <inttypes.h>
#include <sys/types.h>
#include <sys/queue.h>
#include <netinet/in.h>
#include <setjmp.h>
#include <stdarg.h>
#include <ctype.h>
#include <errno.h>
#include <getopt.h>
#include <signal.h>
#include <stdbool.h>
#include <math.h>
/*
* RTE_LIBRTE_RING_DEBUG generates statistics of ring buffers. However, SEGV is occurred. (v16.07）
* #define RTE_LIBRTE_RING_DEBUG
*/
#include <rte_common.h>
#include <rte_log.h>
#include <rte_malloc.h>
#include <rte_memory.h>
#include <rte_memcpy.h>
#include <rte_memzone.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_errno.h>
#include <rte_timer.h>
static int64_t loss_random(const char *loss_rate);
static int64_t loss_random_a(double loss_rate);
static bool loss_event(void);
static bool loss_event_random(uint64_t loss_rate);
static bool loss_event_GE(uint64_t loss_rate_n, uint64_t loss_rate_a, uint64_t st_ch_rate_no2ab, uint64_t st_ch_rate_ab2no);
static bool loss_event_4state( uint64_t p13, uint64_t p14, uint64_t p23, uint64_t p31, uint64_t p32);
static bool dup_event(void);
static uint64_t normal_distribution(uint64_t mean, uint64_t stddev);
#define RANDOM_MAX 1000000000
static volatile bool force_quit;
#define RTE_LOGTYPE_DEMU RTE_LOGTYPE_USER1
/*
* 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 */
#if DPDK_VERSION > 18
static struct rte_ether_addr demu_ports_eth_addr[RTE_MAX_ETHPORTS];
#else
static struct ether_addr demu_ports_eth_addr[RTE_MAX_ETHPORTS];
#endif
struct rte_mempool * demu_pktmbuf_pool = NULL;
static uint32_t demu_enabled_port_mask = 0;
/* Per-port statistics struct */
struct demu_port_statistics {
uint64_t tx;
uint64_t rx;
uint64_t dropped;
uint64_t rx_worker_dropped;
uint64_t worker_tx_dropped;
uint64_t queue_dropped;
uint64_t discarded;
} __rte_cache_aligned;
struct demu_port_statistics port_statistics[RTE_MAX_ETHPORTS];
/*
* Assigment of each thread to a specific CPU core.
* Currently, each of two threads is running for rx, tx, worker threads.
*/
#define RX_THREAD_CORE 2
#define RX_THREAD_CORE2 3
#define TX_THREAD_CORE 4
#define TX_THREAD_CORE2 5
#define WORKER_THREAD_CORE 6
#define WORKER_THREAD_CORE2 7
#define TIMER_THREAD_CORE 1
/*
* The maximum number of packets which are processed in burst.
* Note: do not set PKT_BURST_RX to 1.
*/
#define PKT_BURST_RX 32
#define PKT_BURST_TX 32
#define PKT_BURST_WORKER 32
/*
* The default mempool size is not enough for buffering 64KB of short packets for 1 second.
* SHORT_PACKET should be enabled in the case of short packet benchmarking.
* #define SHORT_PACKET
*/
#ifdef SHORT_PACKET
#define DEMU_DELAYED_BUFFER_PKTS 8388608
#define MEMPOOL_BUF_SIZE 1152
#else
#define DEMU_DELAYED_BUFFER_PKTS 2097152
#define MEMPOOL_BUF_SIZE RTE_MBUF_DEFAULT_BUF_SIZE /* 2048 */
#endif
#define MEMPOOL_CACHE_SIZE 512
#define DEMU_SEND_BUFFER_SIZE_PKTS 512
struct rte_ring *rx_to_workers;
struct rte_ring *rx_to_workers2;
struct rte_ring *workers_to_tx;
struct rte_ring *workers_to_tx2;
static uint64_t delayed_time_in_us = 0;
static uint64_t delayed_jitter = 0;
static uint64_t delayed_time = 0;
enum demu_loss_mode {
LOSS_MODE_NONE,
LOSS_MODE_RANDOM,
LOSS_MODE_GE,
LOSS_MODE_4STATE,
};
static enum demu_loss_mode loss_mode = LOSS_MODE_NONE;
static uint64_t loss_percent_1 = 0;
static uint64_t loss_percent_2 = 0;
// static uint64_t change_percent_1 = 0;
// static uint64_t change_percent_2 = 0;
static uint64_t dup_rate = 0;
static const struct rte_eth_conf port_conf = {
.rxmode = {
.split_hdr_size = 0,
#if DPDK_VERSION < 18
.header_split = 0, /**< Header Split disabled */
.hw_ip_checksum = 0, /**< IP checksum offload disabled */
.hw_vlan_filter = 0, /**< VLAN filtering disabled */
.jumbo_frame = 0, /**< Jumbo Frame Support disabled */
.hw_strip_crc = 0, /**< CRC stripped by hardware */
#endif
},
.txmode = {
.mq_mode = ETH_MQ_TX_NONE,
},
};
static struct rte_eth_rxconf rx_conf = {
.rx_thresh = { /**< RX ring threshold registers. */
.pthresh = 8, /**< Ring prefetch threshold. */
.hthresh = 8, /**< Ring host threshold. */
.wthresh = 0, /**< Ring writeback threshold. */
},
.rx_free_thresh = 32, /**< Drives the freeing of RX descriptors. */
.rx_drop_en = 0, /**< Drop packets if no descriptors are available. */
.rx_deferred_start = 0, /**< Do not start queue with rte_eth_dev_start(). */
};
static struct rte_eth_txconf tx_conf = {
.tx_thresh = { /**< TX ring threshold registers. */
.pthresh = 32,
.hthresh = 0,
.wthresh = 0,
},
.tx_rs_thresh = 32, /**< Drives the setting of RS bit on TXDs. */
.tx_free_thresh = 32, /**< Start freeing TX buffers if there are less free descriptors than this value. */
#if DPDK_VERSION < 18
.txq_flags = (ETH_TXQ_FLAGS_NOMULTSEGS |
ETH_TXQ_FLAGS_NOVLANOFFL |
ETH_TXQ_FLAGS_NOXSUMSCTP |
ETH_TXQ_FLAGS_NOXSUMUDP |
ETH_TXQ_FLAGS_NOXSUMTCP),
#endif
.tx_deferred_start = 0, /**< Do not start queue with rte_eth_dev_start(). */
};
/* #define DEBUG_RX */
/* #define DEBUG_TX */
#ifdef DEBUG_RX
#define RX_STAT_BUF_SIZE 3000000
double rx_stat[RX_STAT_BUF_SIZE] = {0};
uint64_t rx_cnt = 0;
#endif
#ifdef DEBUG_TX
#define TX_STAT_BUF_SIZE 3000000
double tx_stat[TX_STAT_BUF_SIZE] = {0};
uint64_t tx_cnt = 0;
#endif
static inline void
pktmbuf_free_bulk(struct rte_mbuf *mbuf_table[], unsigned n)
{
unsigned int i;
for (i = 0; i < n; i++)
rte_pktmbuf_free(mbuf_table[i]);
}
static double max_speed = 10000000000.0; /* FIXME: 10Gbps */
static uint64_t limit_speed = 0;
static uint64_t amount_token = 0; /* one token represents capacity of 1 Mbps. */
static uint64_t sub_amount_token = 0;
static void
tx_timer_cb(__attribute__((unused)) struct rte_timer *tmpTime, __attribute__((unused)) void *arg)
{
double upper_limit_speed = max_speed / 100000;
if (amount_token >= (uint64_t)upper_limit_speed)
return;
if (limit_speed >= 1000000)
amount_token += (limit_speed / 1000000);
else {
sub_amount_token += limit_speed;
if (sub_amount_token > 1000000) {
amount_token += sub_amount_token / 1000000;
sub_amount_token %= 1000000;
}
}
}
static void
delay_timer_cb(__attribute__((unused)) struct rte_timer *tmpTime, __attribute__((unused)) void *arg)
{
//dynamic latency changes latency by normal distribution with delayed jitter as a standard deviation.
delayed_time = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * normal_distribution(delayed_time_in_us, delayed_jitter);
}
static void
demu_timer_loop(void)
{
unsigned lcore_id;
uint64_t hz;
struct rte_timer timer;
struct rte_timer delay_timer;
lcore_id = rte_lcore_id();
hz = rte_get_timer_hz();
RTE_LOG(INFO, DEMU, "Entering timer loop on lcore %u\n", lcore_id);
if (limit_speed) {
rte_timer_init(&timer);
rte_timer_reset(&timer, hz / 1000000, PERIODICAL, lcore_id, tx_timer_cb, NULL);
RTE_LOG(INFO, DEMU, " Linit speed is %lu bps\n", limit_speed);
}
if (delayed_jitter) {
rte_timer_init(&delay_timer);
rte_timer_reset(&delay_timer, hz, PERIODICAL, lcore_id, delay_timer_cb, NULL);
RTE_LOG(INFO, DEMU, " Delayed time is %lu us with delay jitter %lu us\n", delayed_time_in_us, delayed_jitter);
}
while (!force_quit)
rte_timer_manage();
}
static void
demu_tx_loop(unsigned portid)
{
struct rte_mbuf *send_buf[PKT_BURST_TX];
struct rte_ring **cring;
unsigned lcore_id;
uint32_t numdeq = 0;
uint16_t sent;
lcore_id = rte_lcore_id();
RTE_LOG(INFO, DEMU, "Entering main tx loop on lcore %u portid %u\n", lcore_id, portid);
while (!force_quit) {
if (portid == 0)
cring = &workers_to_tx;
else
cring = &workers_to_tx2;
numdeq = rte_ring_sc_dequeue_burst(*cring,
(void *)send_buf, PKT_BURST_TX, NULL);
if (unlikely(numdeq == 0))
continue;
sent = 0;
while (numdeq > sent)
sent += rte_eth_tx_burst(portid, 0, send_buf + sent, numdeq - sent);
#ifdef DEBUG_TX
if (tx_cnt < TX_STAT_BUF_SIZE) {
for (uint32_t i = 0; i < numdeq; i++) {
tx_stat[tx_cnt] = rte_rdtsc();
tx_cnt++;
}
}
#endif
}
}
static void
demu_rx_loop(unsigned portid)
{
struct rte_mbuf *pkts_burst[PKT_BURST_RX], *rx2w_buffer[PKT_BURST_RX];
unsigned lcore_id;
unsigned nb_rx, i;
unsigned nb_loss;
unsigned nb_dup;
uint32_t numenq;
lcore_id = rte_lcore_id();
RTE_LOG(INFO, DEMU, "Entering main rx loop on lcore %u portid %u\n", lcore_id, portid);
while (!force_quit) {
nb_rx = rte_eth_rx_burst((uint8_t) portid, 0, pkts_burst, PKT_BURST_RX);
if (likely(nb_rx == 0))
continue;
nb_loss = 0;
nb_dup = 0;
for (i = 0; i < nb_rx; i++) {
struct rte_mbuf *clone;
if (portid == 0 && loss_event()) {
port_statistics[portid].discarded++;
nb_loss++;
continue;
}
rx2w_buffer[i - nb_loss + nb_dup] = pkts_burst[i];
rte_prefetch0(rte_pktmbuf_mtod(rx2w_buffer[i - nb_loss + nb_dup], void *));
rx2w_buffer[i - nb_loss + nb_dup]->udata64 = rte_rdtsc();
/* FIXME: we do not check the buffer overrun of rx2w_buffer. */
if (portid == 0 && dup_event()) {
clone = rte_pktmbuf_clone(rx2w_buffer[i - nb_loss + nb_dup], demu_pktmbuf_pool);
if (clone == NULL)
RTE_LOG(ERR, DEMU, "cannot clone a packet\n");
nb_dup++;
rx2w_buffer[i - nb_loss + nb_dup] = clone;
}
#ifdef DEBUG_RX
if (rx_cnt < RX_STAT_BUF_SIZE) {
rx_stat[rx_cnt] = rte_rdtsc();
rx_cnt++;
}
#endif
}
if (portid == 0)
numenq = rte_ring_sp_enqueue_burst(rx_to_workers,
(void *)rx2w_buffer, nb_rx - nb_loss + nb_dup, NULL);
else
numenq = rte_ring_sp_enqueue_burst(rx_to_workers2,
(void *)rx2w_buffer, nb_rx - nb_loss + nb_dup, NULL);
if (unlikely(numenq < (unsigned)(nb_rx - nb_loss + nb_dup))) {
RTE_LOG(WARNING, DEMU, "Delayed Queue Overflow count: %d\n",
(nb_rx - nb_loss + nb_dup) - numenq);
pktmbuf_free_bulk(&pkts_burst[numenq], nb_rx - nb_loss + nb_dup - numenq);
}
}
}
static void
worker_thread(unsigned portid)
{
uint16_t burst_size = 0;
struct rte_mbuf *burst_buffer[PKT_BURST_WORKER];
uint64_t diff_tsc;
int i;
unsigned lcore_id;
int status;
lcore_id = rte_lcore_id();
RTE_LOG(INFO, DEMU, "Entering main worker on lcore %u\n", lcore_id);
while (!force_quit) {
if (portid == 0)
burst_size = rte_ring_sc_dequeue_burst(rx_to_workers,
(void *)burst_buffer, PKT_BURST_WORKER, NULL);
else
burst_size = rte_ring_sc_dequeue_burst(rx_to_workers2,
(void *)burst_buffer, PKT_BURST_WORKER, NULL);
if (unlikely(burst_size == 0))
continue;
i = 0;
while (i != burst_size) {
/* Add a given delay when a packet comes from the port 0.
* FIXME: fix this implementation.
*/
if (portid == 0) {
rte_prefetch0(rte_pktmbuf_mtod(burst_buffer[i], void *));
diff_tsc = rte_rdtsc() - burst_buffer[i]->udata64;
if (diff_tsc < delayed_time)
continue;
if (limit_speed) {
uint16_t pkt_size_bit = burst_buffer[i]->pkt_len * 8;
if (amount_token >= pkt_size_bit)
amount_token -= pkt_size_bit;
else
continue;
}
do {
status = rte_ring_sp_enqueue(workers_to_tx2, burst_buffer[i]);
} while (status == -ENOBUFS);
i++;
} else {
do {
status = rte_ring_sp_enqueue(workers_to_tx, burst_buffer[i]);
} while (status == -ENOBUFS);
i++;
}
}
}
}
static int
demu_launch_one_lcore(__attribute__((unused)) void *dummy)
{
unsigned lcore_id;
lcore_id = rte_lcore_id();
if (lcore_id == TX_THREAD_CORE)
demu_tx_loop(1);
else if (lcore_id == TX_THREAD_CORE2)
demu_tx_loop(0);
else if (lcore_id == WORKER_THREAD_CORE)
worker_thread(0);
else if (lcore_id == WORKER_THREAD_CORE2)
worker_thread(1);
else if (lcore_id == RX_THREAD_CORE)
demu_rx_loop(1);
else if (lcore_id == RX_THREAD_CORE2)
demu_rx_loop(0);
else if ((limit_speed || delayed_jitter) && lcore_id == TIMER_THREAD_CORE)
demu_timer_loop();
if (force_quit)
return 0;
return 0;
}
/* display usage */
static void
demu_usage(const char *prgname)
{
printf("%s [EAL options] -- -d Delayed time [us] (default is 0s)\n"
" -p PORTMASK: HEXADECIMAL bitmask of ports to configure\n"
" -r random packet loss %% (default is 0%%)\n"
" -g XXX\n"
" -s bandwidth limitation [bps]\n"
" -D duplicate packet rate\n",
prgname);
}
static int
demu_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;
return pm;
}
static int
demu_parse_delayed(const char *q_arg)
{
char *end = NULL;
int n;
/* parse number string */
n = strtol(q_arg, &end, 10);
if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
return -1;
return n;
}
static int
demu_parse_jitter(const char *q_arg)
{
char *end = NULL;
int n;
/* parse number string */
n = strtol(q_arg, &end, 10);
if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
return -1;
return n;
}
static int64_t
demu_parse_speed(const char *arg)
{
int64_t speed, base = 1;
char *end = NULL;
speed = strtoul(arg, &end, 10);
if (end != NULL) {
char unit = *end;
switch (unit) {
case 'k':
case 'K':
base = 1000;
break;
case 'm':
case 'M':
base = 1000 * 1000;
break;
case 'g':
case 'G':
if (speed > 10) return -1;
base = 1000 * 1000 * 1000;
break;
default:
return -1;
}
end++;
}
if (arg[0] == '\0' || end == NULL || *end != '\0') {
return -1;
}
speed = speed * base;
if (speed < 1000 && 10000000000 < speed)
return -1;
return speed;
}
/* Parse the argument given in the command line of the application */
static int
demu_parse_args(int argc, char **argv)
{
int opt, ret;
char **argvopt;
char *prgname = argv[0];
const struct option longopts[] = {
{0, 0, 0, 0}
};
int longindex = 0;
int64_t val;
argvopt = argv;
while ((opt = getopt_long(argc, argvopt, "d:g:j:p:r:s:D:",
longopts, &longindex)) != EOF) {
switch (opt) {
/* portmask */
case 'p':
demu_enabled_port_mask = demu_parse_portmask(optarg);
if (demu_enabled_port_mask <= 0) {
printf("Invalid value: portmask\n");
demu_usage(prgname);
return -1;
}
break;
/* delayed packet */
case 'd':
val = demu_parse_delayed(optarg);
if (val < 0) {
printf("Invalid value: delayed time\n");
demu_usage(prgname);
return -1;
}
delayed_time_in_us = val;
delayed_time = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * val;
break;
/* delayed jitter */
case 'j':
val = demu_parse_jitter(optarg);
if (val < 0) {
printf("Invalid value: jitter\n");
demu_usage(prgname);
return -1;
}
delayed_jitter = val;
break;
/* random packet loss */
case 'r':
val = loss_random(optarg);
if (val < 0) {
printf("Invalid value: loss rate\n");
demu_usage(prgname);
return -1;
}
loss_percent_1 = val;
loss_mode = LOSS_MODE_RANDOM;
break;
case 'g':
val = loss_random(optarg);
if (val < 0) {
printf("Invalid value: loss rate\n");
demu_usage(prgname);
return -1;
}
loss_percent_2 = val;
loss_mode = LOSS_MODE_GE;
break;
/* duplicate packet */
case 'D':
val = loss_random(optarg);
if (val < 0) {
printf("Invalid value: loss rate\n");
demu_usage(prgname);
return -1;
}
dup_rate = val;
break;
/* bandwidth limitation */
case 's':
val = demu_parse_speed(optarg);
if (val < 0) {
RTE_LOG(ERR, DEMU, "Invalid value: speed\n");
return -1;
}
limit_speed = val;
break;
/* long options */
case 0:
demu_usage(prgname);
return -1;
default:
demu_usage(prgname);
return -1;
}
}
if (optind >= 0)
argv[optind-1] = prgname;
ret = optind-1;
optind = 0; /* reset getopt lib */
return ret;
}
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;
RTE_LOG(INFO, DEMU, "Checking link status\n");
for (count = 0; count <= MAX_CHECK_TIME; count++) {
if (force_quit)
return;
all_ports_up = 1;
for (portid = 0; portid < port_num; portid++) {
if (force_quit)
return;
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)
RTE_LOG(INFO, DEMU, " 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
RTE_LOG(INFO, DEMU, " Port %d Link Down\n",
(uint8_t)portid);
continue;
}
/* clear all_ports_up flag if any link down */
if (link.link_status == ETH_LINK_DOWN) {
all_ports_up = 0;
break;
}
}
/* after finally printing all link status, get out */
if (print_flag == 1)
break;
if (all_ports_up == 0)
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;
}
}
static void
signal_handler(int signum)
{
if (signum == SIGINT || signum == SIGTERM) {
RTE_LOG(NOTICE, DEMU, "Signal %d received, preparing to exit...\n",
signum);
force_quit = true;
}
}
int
main(int argc, char **argv)
{
int ret;
uint8_t nb_ports;
uint8_t portid;
unsigned lcore_id;
/* init EAL */
ret = rte_eal_init(argc, argv);
if (ret < 0)
rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
argc -= ret;
argv += ret;
force_quit = false;
signal(SIGINT, signal_handler);
signal(SIGTERM, signal_handler);
/* parse application arguments (after the EAL ones) */
ret = demu_parse_args(argc, argv);
if (ret < 0)
rte_exit(EXIT_FAILURE, "Invalid DEMU arguments\n");
/* create the mbuf pool */
demu_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool",
DEMU_DELAYED_BUFFER_PKTS * 2 + DEMU_SEND_BUFFER_SIZE_PKTS * 2,
MEMPOOL_CACHE_SIZE, 0, MEMPOOL_BUF_SIZE,
rte_socket_id());
if (demu_pktmbuf_pool == NULL)
rte_exit(EXIT_FAILURE, "Cannot init mbuf pool: %s\n", rte_strerror(rte_errno));
#if DPDK_VERSION > 17
nb_ports = rte_eth_dev_count_avail();
#else
nb_ports = rte_eth_dev_count();
#endif
if (nb_ports == 0)
rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
if (nb_ports > RTE_MAX_ETHPORTS)
nb_ports = RTE_MAX_ETHPORTS;
/* Initialise each port */
for (portid = 0; portid < nb_ports; portid++) {
/* init port */
RTE_LOG(INFO, DEMU, "Initializing port %u\n", (unsigned) portid);
ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
if (ret < 0)
rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
ret, (unsigned) portid);
rte_eth_macaddr_get(portid,&demu_ports_eth_addr[portid]);
/* init one RX queue */
ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
rte_eth_dev_socket_id(portid),
&rx_conf,
demu_pktmbuf_pool);
if (ret < 0)
rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n",
ret, (unsigned) portid);
/* init one TX queue on each port */
ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
rte_eth_dev_socket_id(portid),
&tx_conf);
if (ret < 0)
rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n",
ret, (unsigned) portid);
/* Start device */
ret = rte_eth_dev_start(portid);
if (ret < 0)
rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n",
ret, (unsigned) portid);
rte_eth_promiscuous_enable(portid);
RTE_LOG(INFO, DEMU, " Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n",
(unsigned) portid,
demu_ports_eth_addr[portid].addr_bytes[0],
demu_ports_eth_addr[portid].addr_bytes[1],
demu_ports_eth_addr[portid].addr_bytes[2],
demu_ports_eth_addr[portid].addr_bytes[3],
demu_ports_eth_addr[portid].addr_bytes[4],
demu_ports_eth_addr[portid].addr_bytes[5]);
/* initialize port stats */
memset(&port_statistics, 0, sizeof(port_statistics));
}
check_all_ports_link_status(nb_ports, demu_enabled_port_mask);
rx_to_workers = rte_ring_create("rx_to_workers", DEMU_DELAYED_BUFFER_PKTS,
rte_socket_id(), RING_F_SP_ENQ | RING_F_SC_DEQ);
if (rx_to_workers == NULL)
rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));
workers_to_tx = rte_ring_create("workers_to_tx", DEMU_SEND_BUFFER_SIZE_PKTS,
rte_socket_id(), RING_F_SP_ENQ | RING_F_SC_DEQ);
if (workers_to_tx == NULL)
rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));
rx_to_workers2 = rte_ring_create("rx_to_workers2", DEMU_DELAYED_BUFFER_PKTS,
rte_socket_id(), RING_F_SP_ENQ | RING_F_SC_DEQ);
if (rx_to_workers2 == NULL)
rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));
workers_to_tx2 = rte_ring_create("workers_to_tx2", DEMU_SEND_BUFFER_SIZE_PKTS,
rte_socket_id(), RING_F_SP_ENQ | RING_F_SC_DEQ);
if (workers_to_tx2 == NULL)
rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));
ret = 0;
/* launch per-lcore init on every lcore */
rte_eal_mp_remote_launch(demu_launch_one_lcore, NULL, CALL_MASTER);
RTE_LCORE_FOREACH_SLAVE(lcore_id) {
if (rte_eal_wait_lcore(lcore_id) < 0) {
ret = -1;
break;
}
}
for (portid = 0; portid < nb_ports; portid++) {
struct rte_eth_stats stats;
/* if ((demu_enabled_port_mask & (1 << portid)) == 0) */
/* continue; */
RTE_LOG(INFO, DEMU, "Closing port %d\n", portid);
rte_eth_stats_get(portid, &stats);
RTE_LOG(INFO, DEMU, "port %d: in pkt: %ld out pkt: %ld in missed: %ld in errors: %ld out errors: %ld\n",
portid, stats.ipackets, stats.opackets, stats.imissed, stats.ierrors, stats.oerrors);
rte_eth_dev_stop(portid);
rte_eth_dev_close(portid);
}
#if defined(DEBUG_RX) || defined(DEBUG_TX)
time_t timer;
struct tm *timeptr;
timer = time(NULL);
timeptr = localtime(&timer);
#endif
#ifdef DEBUG_RX
char filename1[64] = {'\0'};
strftime(filename1, 64, "/home/aketa/result/rxtime%m%d%H%M%S", timeptr);
FILE *rxoutput;
if ((rxoutput = fopen(filename1, "a+")) == NULL) {
printf("file open error!!\n");
exit(EXIT_FAILURE);
}
for (uint64_t i = 0; i < rx_cnt - 1 ; i++) {
fprintf(rxoutput, "%lf\n", rx_stat[i]);
}
fclose(rxoutput);
#endif
#ifdef DEBUG_TX
char filename2[64] = {'\0'};
strftime(filename2, 64, "/home/aketa/result/txtime%m%d%H%M%S", timeptr);
FILE *txoutput;
if ((txoutput = fopen(filename2, "a+")) == NULL) {
printf("file open error!!\n");
exit(EXIT_FAILURE);
}
for (uint64_t i = 0; i < tx_cnt - 1 ; i++) {
fprintf(txoutput, "%lf\n", tx_stat[i]);
}
fclose(txoutput);
#endif
/* rte_ring_dump(stdout, rx_to_workers); */
/* rte_ring_dump(stdout, workers_to_tx); */
RTE_LOG(INFO, DEMU, "Bye...\n");
return ret;
}
static int64_t
loss_random_a(double loss_rate)
{
double percent;
uint64_t percent_u64;
percent = loss_rate;
percent *= RANDOM_MAX / 100;
percent_u64 = (uint64_t)percent;
return percent_u64;
}
static int64_t
loss_random(const char *loss_rate)