#include <stdint.h>
#include <stdio.h>
#include <inttypes.h>
#include <stdarg.h>
#include <errno.h>
#include <sys/queue.h>
#include <stdlib.h>
#include <getopt.h>
#include <string.h>
#include "common.h"
#define PKT_READ_SIZE ((uint16_t)32)
static uint8_t client_id = 0;
#define MBQ_CAPACITY 32
static uint8_t output_ports[RTE_MAX_ETHPORTS];
static volatile struct tx_stats *tx_stats;
static void
usage(const char *progname)
{
printf("Usage: %s [EAL args] -- -n <client_id>\n\n", progname);
}
static int
parse_client_num(const char *client)
{
char *end = NULL;
unsigned long temp;
if (client == NULL || *client == '\0')
return -1;
temp = strtoul(client, &end, 10);
if (end == NULL || *end != '\0')
return -1;
client_id = (uint8_t)temp;
return 0;
}
static int
parse_app_args(int argc, char *argv[])
{
int option_index, opt;
char **argvopt = argv;
const char *progname = NULL;
static struct option lgopts[] = {
{NULL, 0, 0, 0 }
};
progname = argv[0];
while ((opt = getopt_long(argc, argvopt, "n:", lgopts,
&option_index)) != EOF){
switch (opt){
case 'n':
if (parse_client_num(optarg) != 0){
usage(progname);
return -1;
}
break;
default:
usage(progname);
return -1;
}
}
return 0;
}
static void
flush_tx_error_callback(
struct rte_mbuf **unsent, uint16_t count,
void *userdata) {
int i;
uint8_t port_id = (uintptr_t)userdata;
tx_stats->tx_drop[port_id] += count;
for (i = 0; i < count; i++)
}
static void
configure_tx_buffer(uint8_t port_id, uint16_t size)
{
int ret;
if (tx_buffer[port_id] == NULL)
rte_exit(EXIT_FAILURE,
"Cannot allocate buffer for tx on port %u\n",
(unsigned) port_id);
flush_tx_error_callback, (void *)(intptr_t)port_id);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Cannot set error callback for "
"tx buffer on port %u\n", (unsigned) port_id);
}
static void
configure_output_ports(const struct port_info *ports)
{
int i;
if (ports->num_ports > RTE_MAX_ETHPORTS)
rte_exit(EXIT_FAILURE,
"Too many ethernet ports. RTE_MAX_ETHPORTS = %u\n",
(unsigned)RTE_MAX_ETHPORTS);
for (i = 0; i < ports->num_ports - 1; i+=2){
uint8_t p1 = ports->id[i];
uint8_t p2 = ports->id[i+1];
output_ports[p1] = p2;
output_ports[p2] = p1;
configure_tx_buffer(p1, MBQ_CAPACITY);
configure_tx_buffer(p2, MBQ_CAPACITY);
}
}
static void
{
int sent;
const uint8_t in_port = buf->
port;
const uint8_t out_port = output_ports[in_port];
if (sent)
tx_stats->tx[out_port] += sent;
}
int
main(int argc, char *argv[])
{
struct port_info *ports;
int need_flush = 0;
int retval;
void *pkts[PKT_READ_SIZE];
uint16_t sent;
return -1;
argc -= retval;
argv += retval;
if (parse_app_args(argc, argv) < 0)
rte_exit(EXIT_FAILURE,
"Invalid command-line arguments\n");
rte_exit(EXIT_FAILURE,
"No Ethernet ports - bye\n");
if (rx_ring == NULL)
rte_exit(EXIT_FAILURE,
"Cannot get RX ring - is server process running?\n");
if (mp == NULL)
rte_exit(EXIT_FAILURE,
"Cannot get mempool for mbufs\n");
if (mz == NULL)
rte_exit(EXIT_FAILURE,
"Cannot get port info structure\n");
tx_stats = &(ports->tx_stats[client_id]);
configure_output_ports(ports);
RTE_LOG(INFO, APP,
"Finished Process Init.\n");
printf("\nClient process %d handling packets\n", client_id);
printf("[Press Ctrl-C to quit ...]\n");
for (;;) {
uint16_t i, rx_pkts;
PKT_READ_SIZE, NULL);
if (need_flush)
for (port = 0; port < ports->num_ports; port++) {
tx_buffer[port]);
tx_stats->tx[port] += sent;
}
need_flush = 0;
continue;
}
for (i = 0; i < rx_pkts; i++)
handle_packet(pkts[i]);
need_flush = 1;
}
}