#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 "shm.h"
#define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
#define NB_MBUF_PER_PORT 3000
#define MAX_PKT_BURST 32
#define BURST_TX_DRAIN_US 100
#define RX_DESC_DEFAULT 1024
#define TX_DESC_DEFAULT 1024
static uint16_t nb_rxd = RX_DESC_DEFAULT;
static uint16_t nb_txd = TX_DESC_DEFAULT;
static uint32_t l2fwd_enabled_port_mask;
static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
static unsigned int l2fwd_rx_queue_per_lcore = 1;
#define MAX_RX_QUEUE_PER_LCORE 16
#define MAX_TX_QUEUE_PER_PORT 16
struct lcore_queue_conf {
unsigned n_rx_port;
unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
},
};
struct l2fwd_port_statistics {
uint64_t tx;
uint64_t rx;
uint64_t dropped;
struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
#define TIMER_MILLISECOND 1
#define MAX_TIMER_PERIOD 86400
static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000;
static int64_t check_period = 5;
struct rte_keepalive *rte_global_keepalive_info;
static int terminate_signal_received;
{
terminate_signal_received = 1;
}
static void
{
uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
uint16_t portid;
total_packets_dropped = 0;
total_packets_tx = 0;
total_packets_rx = 0;
const char clr[] = { 27, '[', '2', 'J', '\0' };
const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
printf("%s%s", clr, topLeft);
printf("\nPort statistics ====================================");
for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
continue;
printf("\nStatistics for port %u ------------------------------"
"\nPackets sent: %24"PRIu64
"\nPackets received: %20"PRIu64
"\nPackets dropped: %21"PRIu64,
portid,
port_statistics[portid].tx,
port_statistics[portid].rx,
port_statistics[portid].dropped);
total_packets_dropped += port_statistics[portid].dropped;
total_packets_tx += port_statistics[portid].tx;
total_packets_rx += port_statistics[portid].rx;
}
printf("\nAggregate statistics ==============================="
"\nTotal packets sent: %18"PRIu64
"\nTotal packets received: %14"PRIu64
"\nTotal packets dropped: %15"PRIu64,
total_packets_tx,
total_packets_rx,
total_packets_dropped);
printf("\n====================================================\n");
fflush(stdout);
}
static void
l2fwd_simple_forward(
struct rte_mbuf *m,
unsigned portid)
{
void *tmp;
int sent;
unsigned dst_port;
dst_port = l2fwd_dst_ports[portid];
*((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
buffer = tx_buffer[dst_port];
if (sent)
port_statistics[dst_port].tx += sent;
}
static void
l2fwd_main_loop(void)
{
struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
int sent;
unsigned lcore_id;
uint64_t prev_tsc, diff_tsc, cur_tsc;
unsigned i, j, portid, nb_rx;
struct lcore_queue_conf *qconf;
/ US_PER_S * BURST_TX_DRAIN_US;
prev_tsc = 0;
qconf = &lcore_queue_conf[lcore_id];
if (qconf->n_rx_port == 0) {
RTE_LOG(INFO, L2FWD,
"lcore %u has nothing to do\n", lcore_id);
return;
}
RTE_LOG(INFO, L2FWD,
"entering main loop on lcore %u\n", lcore_id);
for (i = 0; i < qconf->n_rx_port; i++) {
portid = qconf->rx_port_list[i];
RTE_LOG(INFO, L2FWD,
" -- lcoreid=%u portid=%u\n", lcore_id,
portid);
}
uint64_t tsc_initial = rte_rdtsc();
while (!terminate_signal_received) {
cur_tsc = rte_rdtsc();
if (check_period > 0 && cur_tsc - tsc_initial > tsc_lifetime)
break;
diff_tsc = cur_tsc - prev_tsc;
for (i = 0; i < qconf->n_rx_port; i++) {
portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
buffer = tx_buffer[portid];
if (sent)
port_statistics[portid].tx += sent;
}
prev_tsc = cur_tsc;
}
for (i = 0; i < qconf->n_rx_port; i++) {
portid = qconf->rx_port_list[i];
pkts_burst, MAX_PKT_BURST);
port_statistics[portid].rx += nb_rx;
for (j = 0; j < nb_rx; j++) {
m = pkts_burst[j];
l2fwd_simple_forward(m, portid);
}
}
}
}
static int
{
l2fwd_main_loop();
return 0;
}
static void
l2fwd_usage(const char *prgname)
{
printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
" -p PORTMASK: hexadecimal bitmask of ports to configure\n"
" -q NQ: number of queue (=ports) per lcore (default is 1)\n"
" -K PERIOD: Keepalive check period (5 default; 86400 max)\n"
" -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
prgname);
}
static int
l2fwd_parse_portmask(const char *portmask)
{
char *end = NULL;
unsigned long pm;
pm = strtoul(portmask, &end, 16);
if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
return 0;
return pm;
}
static unsigned int
l2fwd_parse_nqueue(const char *q_arg)
{
char *end = NULL;
unsigned long n;
n = strtoul(q_arg, &end, 10);
if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
return 0;
if (n == 0)
return 0;
if (n >= MAX_RX_QUEUE_PER_LCORE)
return 0;
return n;
}
static int
l2fwd_parse_timer_period(const char *q_arg)
{
char *end = NULL;
int n;
n = strtol(q_arg, &end, 10);
if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
return -1;
if (n >= MAX_TIMER_PERIOD)
return -1;
return n;
}
static int
l2fwd_parse_check_period(const char *q_arg)
{
char *end = NULL;
int n;
n = strtol(q_arg, &end, 10);
if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
return -1;
if (n >= MAX_TIMER_PERIOD)
return -1;
return n;
}
static int
l2fwd_parse_args(int argc, char **argv)
{
int opt, ret;
char **argvopt;
int option_index;
char *prgname = argv[0];
static struct option lgopts[] = {
{NULL, 0, 0, 0}
};
argvopt = argv;
while ((opt = getopt_long(argc, argvopt, "p:q:T:K:",
lgopts, &option_index)) != EOF) {
switch (opt) {
case 'p':
l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
if (l2fwd_enabled_port_mask == 0) {
printf("invalid portmask\n");
l2fwd_usage(prgname);
return -1;
}
break;
case 'q':
l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
if (l2fwd_rx_queue_per_lcore == 0) {
printf("invalid queue number\n");
l2fwd_usage(prgname);
return -1;
}
break;
case 'T':
timer_period = l2fwd_parse_timer_period(optarg)
* (int64_t)(1000 * TIMER_MILLISECOND);
if (timer_period < 0) {
printf("invalid timer period\n");
l2fwd_usage(prgname);
return -1;
}
break;
case 'K':
check_period = l2fwd_parse_check_period(optarg);
if (check_period < 0) {
printf("invalid check period\n");
l2fwd_usage(prgname);
return -1;
}
break;
case 0:
l2fwd_usage(prgname);
return -1;
default:
l2fwd_usage(prgname);
return -1;
}
}
if (optind >= 0)
argv[optind-1] = prgname;
ret = optind-1;
optind = 1;
return ret;
}
static void
check_all_ports_link_status(uint32_t port_mask)
{
#define CHECK_INTERVAL 100
#define MAX_CHECK_TIME 90
uint16_t portid;
uint8_t count, all_ports_up, print_flag = 0;
int ret;
printf("\nChecking link status");
fflush(stdout);
for (count = 0; count <= MAX_CHECK_TIME; count++) {
all_ports_up = 1;
if ((port_mask & (1 << portid)) == 0)
continue;
memset(&link, 0, sizeof(link));
if (ret < 0) {
all_ports_up = 0;
if (print_flag == 1)
printf("Port %u link get failed: %s\n",
continue;
}
if (print_flag == 1) {
sizeof(link_status_text), &link);
printf("Port %d %s\n", portid,
link_status_text);
continue;
}
all_ports_up = 0;
break;
}
}
if (print_flag == 1)
break;
if (all_ports_up == 0) {
printf(".");
fflush(stdout);
}
if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
print_flag = 1;
printf("done\n");
}
}
}
static void
{
if (terminate_signal_received)
return;
printf("Dead core %i - restarting..\n", id_core);
} else {
printf("..false positive!\n");
}
}
static void
relay_core_state(void *ptr_data, const int id_core,
const enum rte_keepalive_state core_state, uint64_t last_alive)
{
rte_keepalive_relayed_state((struct rte_keepalive_shm *)ptr_data,
id_core, core_state, last_alive);
}
int
main(int argc, char **argv)
{
struct lcore_queue_conf *qconf;
int ret;
uint16_t nb_ports;
uint16_t nb_ports_available = 0;
uint16_t portid, last_port;
unsigned lcore_id, rx_lcore_id;
unsigned nb_ports_in_mask = 0;
unsigned int total_nb_mbufs;
struct sigaction signal_handler;
struct rte_keepalive_shm *ka_shm;
memset(&signal_handler, 0, sizeof(signal_handler));
terminate_signal_received = 0;
signal_handler.sa_handler = &handle_sigterm;
if (sigaction(SIGINT, &signal_handler, NULL) == -1 ||
sigaction(SIGTERM, &signal_handler, NULL) == -1)
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Invalid EAL arguments\n");
argc -= ret;
argv += ret;
l2fwd_enabled_port_mask = 0;
ret = l2fwd_parse_args(argc, argv);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Invalid L2FWD arguments\n");
if (nb_ports == 0)
rte_exit(EXIT_FAILURE,
"No Ethernet ports - bye\n");
total_nb_mbufs = NB_MBUF_PER_PORT * nb_ports;
total_nb_mbufs, 32, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
if (l2fwd_pktmbuf_pool == NULL)
rte_exit(EXIT_FAILURE,
"Cannot init mbuf pool\n");
for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
l2fwd_dst_ports[portid] = 0;
last_port = 0;
if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
continue;
if (nb_ports_in_mask % 2) {
l2fwd_dst_ports[portid] = last_port;
l2fwd_dst_ports[last_port] = portid;
} else
last_port = portid;
nb_ports_in_mask++;
}
if (nb_ports_in_mask % 2) {
printf("Notice: odd number of ports in portmask.\n");
l2fwd_dst_ports[last_port] = last_port;
}
rx_lcore_id = 1;
qconf = NULL;
if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
continue;
lcore_queue_conf[rx_lcore_id].n_rx_port ==
l2fwd_rx_queue_per_lcore) {
rx_lcore_id++;
if (rx_lcore_id >= RTE_MAX_LCORE)
rte_exit(EXIT_FAILURE,
"Not enough cores\n");
}
if (qconf != &lcore_queue_conf[rx_lcore_id])
qconf = &lcore_queue_conf[rx_lcore_id];
qconf->rx_port_list[qconf->n_rx_port] = portid;
qconf->n_rx_port++;
printf("Lcore %u: RX port %u\n",
rx_lcore_id, portid);
}
if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
printf("Skipping disabled port %u\n", portid);
continue;
}
nb_ports_available++;
printf("Initializing port %u... ", portid);
fflush(stdout);
if (ret != 0)
"Error during getting device (port %u) info: %s\n",
portid, strerror(-ret));
if (ret < 0)
"Cannot configure device: err=%d, port=%u\n",
ret, portid);
&nb_txd);
if (ret < 0)
"Cannot adjust number of descriptors: err=%d, port=%u\n",
ret, portid);
&l2fwd_ports_eth_addr[portid]);
if (ret < 0)
"Cannot mac address: err=%d, port=%u\n",
ret, portid);
fflush(stdout);
rxq_conf = dev_info.default_rxconf;
&rxq_conf,
l2fwd_pktmbuf_pool);
if (ret < 0)
"rte_eth_rx_queue_setup:err=%d, port=%u\n",
ret, portid);
fflush(stdout);
txq_conf = dev_info.default_txconf;
&txq_conf);
if (ret < 0)
"rte_eth_tx_queue_setup:err=%d, port=%u\n",
ret, portid);
if (tx_buffer[portid] == NULL)
rte_exit(EXIT_FAILURE,
"Cannot allocate buffer for tx on port %u\n",
portid);
&port_statistics[portid].dropped);
if (ret < 0)
"Cannot set error callback for tx buffer on port %u\n",
portid);
if (ret < 0)
"rte_eth_dev_start:err=%d, port=%u\n",
ret, portid);
if (ret != 0)
"rte_eth_promiscuous_enable:err=%s, port=%u\n",
printf("Port %u, MAC address: "
portid,
memset(&port_statistics, 0, sizeof(port_statistics));
}
if (!nb_ports_available) {
"All available ports are disabled. Please set portmask.\n");
}
check_all_ports_link_status(l2fwd_enabled_port_mask);
ka_shm = NULL;
if (check_period > 0) {
ka_shm = rte_keepalive_shm_create();
if (ka_shm == NULL)
"rte_keepalive_shm_create() failed");
rte_global_keepalive_info =
if (rte_global_keepalive_info == NULL)
rte_exit(EXIT_FAILURE,
"init_keep_alive() failed");
relay_core_state, ka_shm);
PERIODICAL,
rte_global_keepalive_info
) != 0 )
rte_exit(EXIT_FAILURE,
"Keepalive setup failure.\n");
}
if (timer_period > 0) {
PERIODICAL,
&print_stats, NULL
) != 0 )
rte_exit(EXIT_FAILURE,
"Stats setup failure.\n");
}
struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
if (qconf->n_rx_port == 0)
"lcore %u has nothing to do\n",
lcore_id
);
else {
l2fwd_launch_one_lcore,
NULL,
lcore_id
);
lcore_id);
}
}
while (!terminate_signal_received) {
}
return -1;
}
if (ka_shm != NULL)
rte_keepalive_shm_cleanup(ka_shm);
return 0;
}
#define __rte_cache_aligned
__rte_noreturn void rte_exit(int exit_code, const char *format,...) __rte_format_printf(2
static uint64_t rte_get_timer_hz(void)
uint64_t rte_get_tsc_hz(void)
static void rte_delay_ms(unsigned ms)
int rte_eal_init(int argc, char **argv)
int rte_eal_cleanup(void)
const char * rte_strerror(int errnum)
static __rte_always_inline uint16_t rte_eth_tx_buffer(uint16_t port_id, uint16_t queue_id, struct rte_eth_dev_tx_buffer *buffer, struct rte_mbuf *tx_pkt)
int rte_eth_dev_configure(uint16_t port_id, uint16_t nb_rx_queue, uint16_t nb_tx_queue, const struct rte_eth_conf *eth_conf)
#define RTE_ETH_LINK_DOWN
int rte_eth_rx_queue_setup(uint16_t port_id, uint16_t rx_queue_id, uint16_t nb_rx_desc, unsigned int socket_id, const struct rte_eth_rxconf *rx_conf, struct rte_mempool *mb_pool)
static uint16_t rte_eth_rx_burst(uint16_t port_id, uint16_t queue_id, struct rte_mbuf **rx_pkts, const uint16_t nb_pkts)
#define RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE
int rte_eth_promiscuous_enable(uint16_t port_id)
__rte_experimental int rte_eth_link_to_str(char *str, size_t len, const struct rte_eth_link *eth_link)
int rte_eth_dev_info_get(uint16_t port_id, struct rte_eth_dev_info *dev_info)
int rte_eth_tx_queue_setup(uint16_t port_id, uint16_t tx_queue_id, uint16_t nb_tx_desc, unsigned int socket_id, const struct rte_eth_txconf *tx_conf)
#define RTE_ETH_LINK_MAX_STR_LEN
int rte_eth_macaddr_get(uint16_t port_id, struct rte_ether_addr *mac_addr)
uint16_t rte_eth_dev_count_avail(void)
int rte_eth_tx_buffer_set_err_callback(struct rte_eth_dev_tx_buffer *buffer, buffer_tx_error_fn callback, void *userdata)
void rte_eth_tx_buffer_count_callback(struct rte_mbuf **pkts, uint16_t unsent, void *userdata)
int rte_eth_tx_buffer_init(struct rte_eth_dev_tx_buffer *buffer, uint16_t size)
static uint16_t rte_eth_tx_buffer_flush(uint16_t port_id, uint16_t queue_id, struct rte_eth_dev_tx_buffer *buffer)
int rte_eth_dev_socket_id(uint16_t port_id)
int rte_eth_link_get_nowait(uint16_t port_id, struct rte_eth_link *link)
int rte_eth_dev_adjust_nb_rx_tx_desc(uint16_t port_id, uint16_t *nb_rx_desc, uint16_t *nb_tx_desc)
#define RTE_ETH_FOREACH_DEV(p)
int rte_eth_dev_start(uint16_t port_id)
#define RTE_ETH_TX_BUFFER_SIZE(sz)
#define RTE_ETHER_ADDR_PRT_FMT
#define RTE_ETHER_ADDR_BYTES(mac_addrs)
static void rte_ether_addr_copy(const struct rte_ether_addr *__restrict ea_from, struct rte_ether_addr *__restrict ea_to)
void rte_keepalive_register_relay_callback(struct rte_keepalive *keepcfg, rte_keepalive_relay_callback_t callback, void *data)
struct rte_keepalive * rte_keepalive_create(rte_keepalive_failure_callback_t callback, void *data)
void rte_keepalive_register_core(struct rte_keepalive *keepcfg, const int id_core)
void rte_keepalive_mark_alive(struct rte_keepalive *keepcfg)
void rte_keepalive_dispatch_pings(void *ptr_timer, void *ptr_data)
int rte_eal_remote_launch(lcore_function_t *f, void *arg, unsigned worker_id)
enum rte_lcore_state_t rte_eal_get_lcore_state(unsigned int worker_id)
int rte_eal_wait_lcore(unsigned worker_id)
int rte_lcore_is_enabled(unsigned int lcore_id)
unsigned int rte_socket_id(void)
#define RTE_LCORE_FOREACH_WORKER(i)
static unsigned rte_lcore_id(void)
#define RTE_LOG(l, t,...)
void * rte_zmalloc_socket(const char *type, size_t size, unsigned align, int socket) __rte_alloc_size(2)
struct rte_mempool * rte_pktmbuf_pool_create(const char *name, unsigned n, unsigned cache_size, uint16_t priv_size, uint16_t data_room_size, int socket_id)
#define rte_pktmbuf_mtod(m, t)
static void rte_prefetch0(const volatile void *p)
void rte_timer_init(struct rte_timer *tim)
int rte_timer_reset(struct rte_timer *tim, uint64_t ticks, enum rte_timer_type type, unsigned tim_lcore, rte_timer_cb_t fct, void *arg)
int rte_timer_manage(void)
int rte_timer_subsystem_init(void)
struct rte_eth_txmode txmode
struct rte_eth_rxmode rxmode
enum rte_eth_tx_mq_mode mq_mode
uint8_t addr_bytes[RTE_ETHER_ADDR_LEN]
struct rte_ether_addr src_addr
struct rte_ether_addr dst_addr