#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <limits.h>
#include <inttypes.h>
#include <getopt.h>
#include <signal.h>
#include <rte_eal_memconfig.h>
#include "../include/common.h"
#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;
#define BURST_TX_DRAIN_US 100
static uint32_t l2fwd_ivshmem_enabled_port_mask = 0;
static struct ether_addr l2fwd_ivshmem_ports_eth_addr[RTE_MAX_ETHPORTS];
#define NB_MBUF 8192
#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 vm_port_param * port_param[MAX_RX_QUEUE_PER_LCORE];
struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
struct mbuf_table rx_mbufs[RTE_MAX_ETHPORTS];
static struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
.header_split = 0,
.hw_ip_checksum = 0,
.hw_vlan_filter = 0,
.jumbo_frame = 0,
.hw_strip_crc = 0,
},
.txmode = {
},
};
#define METADATA_NAME "l2fwd_ivshmem"
#define CMDLINE_OPT_FWD_CONF "fwd-conf"
#define QEMU_CMD_FMT "/tmp/ivshmem_qemu_cmdline_%s"
struct port_statistics port_statistics[RTE_MAX_ETHPORTS];
struct rte_mempool * l2fwd_ivshmem_pktmbuf_pool = NULL;
static void
print_stats(void)
{
uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
uint64_t total_vm_packets_dropped, total_vm_packets_tx, total_vm_packets_rx;
unsigned portid;
total_packets_dropped = 0;
total_packets_tx = 0;
total_packets_rx = 0;
total_vm_packets_tx = 0;
total_vm_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_ivshmem_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("\nVM statistics ======================================");
for (portid = 0; portid < ctrl->nb_ports; portid++) {
printf("\nStatistics for port %u ------------------------------"
"\nPackets sent: %24"PRIu64
"\nPackets received: %20"PRIu64,
portid,
ctrl->vm_ports[portid].stats.tx,
ctrl->vm_ports[portid].stats.rx);
total_vm_packets_dropped += ctrl->vm_ports[portid].stats.dropped;
total_vm_packets_tx += ctrl->vm_ports[portid].stats.tx;
total_vm_packets_rx += ctrl->vm_ports[portid].stats.rx;
}
printf("\nAggregate statistics ==============================="
"\nTotal packets sent: %18"PRIu64
"\nTotal packets received: %14"PRIu64
"\nTotal packets dropped: %15"PRIu64
"\nTotal VM packets sent: %15"PRIu64
"\nTotal VM packets received: %11"PRIu64,
total_packets_tx,
total_packets_rx,
total_packets_dropped,
total_vm_packets_tx,
total_vm_packets_rx);
printf("\n====================================================\n");
}
static int
print_to_file(const char *cmdline, const char *config_name)
{
FILE *file;
char path[PATH_MAX];
snprintf(path, sizeof(path), QEMU_CMD_FMT, config_name);
file = fopen(path, "w");
if (file == NULL) {
RTE_LOG(ERR, L2FWD_IVSHMEM,
"Could not open '%s' \n", path);
return -1;
}
RTE_LOG(DEBUG, L2FWD_IVSHMEM,
"QEMU command line for config '%s': %s \n",
config_name, cmdline);
fprintf(file, "%s\n", cmdline);
fclose(file);
return 0;
}
static int
generate_ivshmem_cmdline(const char *config_name)
{
char cmdline[PATH_MAX];
config_name) < 0)
return -1;
if (print_to_file(cmdline, config_name) < 0)
return -1;
rte_ivshmem_metadata_dump(stdout, config_name);
return 0;
}
static void
l2fwd_ivshmem_usage(const char *prgname)
{
printf("%s [EAL options] -- -p PORTMASK [-q NQ -T PERIOD]\n"
" -p PORTMASK: hexadecimal bitmask of ports to configure\n"
" -q NQ: number of queue (=ports) per lcore (default is 1)\n"
" -T PERIOD: statistics will be refreshed each PERIOD seconds "
"(0 to disable, 10 default, 86400 maximum)\n",
prgname);
}
static unsigned int
l2fwd_ivshmem_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_ivshmem_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 -1;
if (pm == 0)
return -1;
return pm;
}
static int
l2fwd_ivshmem_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_ivshmem_parse_args(int argc, char **argv)
{
int opt, ret;
char **argvopt;
int option_index;
char *prgname = argv[0];
static struct option lgopts[] = {
{CMDLINE_OPT_FWD_CONF, 1, 0, 0},
{NULL, 0, 0, 0}
};
argvopt = argv;
while ((opt = getopt_long(argc, argvopt, "q:p:T:",
lgopts, &option_index)) != EOF) {
switch (opt) {
case 'p':
l2fwd_ivshmem_enabled_port_mask = l2fwd_ivshmem_parse_portmask(optarg);
if (l2fwd_ivshmem_enabled_port_mask == 0) {
printf("invalid portmask\n");
l2fwd_ivshmem_usage(prgname);
return -1;
}
break;
case 'q':
l2fwd_ivshmem_rx_queue_per_lcore = l2fwd_ivshmem_parse_nqueue(optarg);
if (l2fwd_ivshmem_rx_queue_per_lcore == 0) {
printf("invalid queue number\n");
l2fwd_ivshmem_usage(prgname);
return -1;
}
break;
case 'T':
timer_period = l2fwd_ivshmem_parse_timer_period(optarg) * 1000 * TIMER_MILLISECOND;
if (timer_period < 0) {
printf("invalid timer period\n");
l2fwd_ivshmem_usage(prgname);
return -1;
}
break;
case 0:
l2fwd_ivshmem_usage(prgname);
return -1;
default:
l2fwd_ivshmem_usage(prgname);
return -1;
}
}
if (optind >= 0)
argv[optind-1] = prgname;
ret = optind-1;
optind = 0;
return ret;
}
static void
check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
{
#define CHECK_INTERVAL 100
#define MAX_CHECK_TIME 90
uint8_t portid, count, all_ports_up, print_flag = 0;
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));
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,
("full-duplex") : ("half-duplex\n"));
else
printf("Port %d Link Down\n",
(uint8_t)portid);
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 int
l2fwd_ivshmem_send_burst(
struct lcore_queue_conf *qconf,
unsigned n, uint8_t
port)
{
unsigned ret;
unsigned queueid =0;
m_table = (
struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
port_statistics[
port].tx += ret;
port_statistics[
port].dropped += (n - ret);
do {
} while (++ret < n);
}
return 0;
}
static int
l2fwd_ivshmem_send_packet(
struct rte_mbuf *m, uint8_t port)
{
unsigned lcore_id, len;
struct lcore_queue_conf *qconf;
qconf = &lcore_queue_conf[lcore_id];
len = qconf->tx_mbufs[port].len;
qconf->tx_mbufs[port].m_table[len] = m;
len++;
l2fwd_ivshmem_send_burst(qconf, MAX_PKT_BURST, port);
len = 0;
}
qconf->tx_mbufs[port].len = len;
return 0;
}
static int
l2fwd_ivshmem_receive_burst(struct lcore_queue_conf *qconf, unsigned portid,
unsigned vm_port)
{
unsigned len, pkt_idx;
m = qconf->rx_mbufs[portid].m_table;
len = qconf->rx_mbufs[portid].len;
rx = qconf->port_param[vm_port]->rx_ring;
port_statistics[portid].dropped += len;
pkt_idx = 0;
do {
} while (++pkt_idx < len);
}
else
port_statistics[portid].rx += len;
return 0;
}
static int
l2fwd_ivshmem_receive_packets(
struct rte_mbuf ** m,
unsigned n,
unsigned portid,
unsigned vm_port)
{
unsigned lcore_id, len, pkt_idx;
struct lcore_queue_conf *qconf;
qconf = &lcore_queue_conf[lcore_id];
len = qconf->rx_mbufs[portid].len;
pkt_idx = 0;
while (pkt_idx < n && len < MAX_PKT_BURST * 2) {
qconf->rx_mbufs[portid].m_table[len++] = m[pkt_idx++];
}
qconf->rx_mbufs[portid].len += pkt_idx;
port_statistics[portid].dropped += n - pkt_idx;
do {
} while (++pkt_idx < n);
}
if (
unlikely(qconf->rx_mbufs[portid].len >= MAX_PKT_BURST))
l2fwd_ivshmem_receive_burst(qconf, portid, vm_port);
return 0;
}
static void
fwd_loop(void)
{
struct rte_mbuf *pkts_burst[MAX_PKT_BURST * 2];
unsigned lcore_id;
uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
unsigned i, j, portid, nb_rx;
struct lcore_queue_conf *qconf;
const uint64_t drain_tsc = (
rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
prev_tsc = 0;
timer_tsc = 0;
qconf = &lcore_queue_conf[lcore_id];
if (qconf->n_rx_port == 0) {
RTE_LOG(INFO, L2FWD_IVSHMEM,
"lcore %u has nothing to do\n", lcore_id);
return;
}
RTE_LOG(INFO, L2FWD_IVSHMEM,
"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_IVSHMEM,
" -- lcoreid=%u portid=%u\n", lcore_id,
portid);
}
while (ctrl->state == STATE_FWD) {
cur_tsc = rte_rdtsc();
diff_tsc = cur_tsc - prev_tsc;
for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
if (qconf->tx_mbufs[portid].len == 0)
continue;
l2fwd_ivshmem_send_burst(qconf,
qconf->tx_mbufs[portid].len,
(uint8_t) portid);
qconf->tx_mbufs[portid].len = 0;
}
for (i = 0; i < qconf->n_rx_port; i++) {
portid = qconf->rx_port_list[i];
if (qconf->rx_mbufs[portid].len == 0)
continue;
l2fwd_ivshmem_receive_burst(qconf, portid, i);
qconf->rx_mbufs[portid].len = 0;
}
if (timer_period > 0) {
timer_tsc += diff_tsc;
if (
unlikely(timer_tsc >= (uint64_t) timer_period)) {
print_stats();
timer_tsc = 0;
}
}
}
prev_tsc = cur_tsc;
}
for (i = 0; i < qconf->n_rx_port; i++) {
portid = qconf->rx_port_list[i];
pkts_burst, MAX_PKT_BURST);
if (nb_rx != 0)
l2fwd_ivshmem_receive_packets(pkts_burst, nb_rx, portid, i);
tx = qconf->port_param[i]->tx_ring;
nb_rx =
RTE_MIN(nb_rx, (
unsigned) MAX_PKT_BURST);
if (nb_rx == 0)
continue;
ctrl->state = STATE_FAIL;
return;
}
for (j = 0; j < nb_rx; j++) {
m = pkts_burst[j];
l2fwd_ivshmem_send_packet(m, portid);
}
}
}
}
static int
l2fwd_ivshmem_launch_one_lcore(__attribute__((unused)) void *dummy)
{
fwd_loop();
return 0;
}
int main(int argc, char **argv)
{
struct lcore_queue_conf *qconf;
uint8_t portid, port_nr;
uint8_t nb_ports, nb_ports_available;
uint8_t nb_ports_in_mask;
int ret;
unsigned lcore_id, rx_lcore_id;
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Invalid EAL arguments\n");
argc -= ret;
argv += ret;
ret = l2fwd_ivshmem_parse_args(argc, argv);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Invalid l2fwd-ivshmem arguments\n");
l2fwd_ivshmem_pktmbuf_pool =
if (l2fwd_ivshmem_pktmbuf_pool == NULL)
rte_exit(EXIT_FAILURE,
"Cannot init mbuf pool\n");
if (nb_ports == 0)
rte_exit(EXIT_FAILURE,
"No Ethernet ports - bye\n");
if (nb_ports > RTE_MAX_ETHPORTS)
nb_ports = RTE_MAX_ETHPORTS;
if (ctrl_mz == NULL)
rte_exit(EXIT_FAILURE,
"Cannot reserve control memzone\n");
ctrl = (struct ivshmem_ctrl*) ctrl_mz->addr;
memset(ctrl, 0, sizeof(struct ivshmem_ctrl));
nb_ports_in_mask = 0;
for (portid = 0; portid < nb_ports; portid++) {
if ((l2fwd_ivshmem_enabled_port_mask & (1 << portid)) == 0)
continue;
if (portid % 2) {
ctrl->vm_ports[nb_ports_in_mask].dst = &ctrl->vm_ports[nb_ports_in_mask-1];
ctrl->vm_ports[nb_ports_in_mask-1].dst = &ctrl->vm_ports[nb_ports_in_mask];
}
nb_ports_in_mask++;
}
if (nb_ports_in_mask % 2) {
printf("Notice: odd number of ports in portmask.\n");
ctrl->vm_ports[nb_ports_in_mask-1].dst =
&ctrl->vm_ports[nb_ports_in_mask-1];
}
rx_lcore_id = 0;
qconf = NULL;
printf("Initializing ports configuration...\n");
nb_ports_available = nb_ports;
for (portid = 0; portid < nb_ports; portid++) {
if ((l2fwd_ivshmem_enabled_port_mask & (1 << portid)) == 0) {
printf("Skipping disabled port %u\n", (unsigned) portid);
nb_ports_available--;
continue;
}
printf("Initializing port %u... ", (unsigned) portid);
fflush(stdout);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Cannot configure device: err=%d, port=%u\n",
ret, (unsigned) portid);
fflush(stdout);
rte_eth_dev_socket_id(portid),
NULL,
l2fwd_ivshmem_pktmbuf_pool);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"rte_eth_rx_queue_setup:err=%d, port=%u\n",
ret, (unsigned) portid);
fflush(stdout);
rte_eth_dev_socket_id(portid),
NULL);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"rte_eth_tx_queue_setup:err=%d, port=%u\n",
ret, (unsigned) portid);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"rte_eth_dev_start:err=%d, port=%u\n",
ret, (unsigned) portid);
printf("done: \n");
printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
(unsigned) portid,
l2fwd_ivshmem_ports_eth_addr[portid].addr_bytes[0],
l2fwd_ivshmem_ports_eth_addr[portid].addr_bytes[1],
l2fwd_ivshmem_ports_eth_addr[portid].addr_bytes[2],
l2fwd_ivshmem_ports_eth_addr[portid].addr_bytes[3],
l2fwd_ivshmem_ports_eth_addr[portid].addr_bytes[4],
l2fwd_ivshmem_ports_eth_addr[portid].addr_bytes[5]);
memset(&port_statistics, 0, sizeof(port_statistics));
}
if (!nb_ports_available) {
"All available ports are disabled. Please set portmask.\n");
}
port_nr = 0;
for (portid = 0; portid < nb_ports; portid++) {
if ((l2fwd_ivshmem_enabled_port_mask & (1 << portid)) == 0)
continue;
lcore_queue_conf[rx_lcore_id].n_rx_port ==
l2fwd_ivshmem_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->port_param[qconf->n_rx_port] = &ctrl->vm_ports[port_nr];
qconf->n_rx_port++;
port_nr++;
printf("Lcore %u: RX port %u\n", rx_lcore_id, (unsigned) portid);
}
check_all_ports_link_status(nb_ports_available, l2fwd_ivshmem_enabled_port_mask);
for (portid = 0; portid < nb_ports_available; portid++) {
snprintf(name, sizeof(name), "%s%i", RX_RING_PREFIX, portid);
if (r == NULL)
rte_exit(EXIT_FAILURE,
"Cannot create ring %s\n", name);
ctrl->vm_ports[portid].rx_ring = r;
snprintf(name, sizeof(name), "%s%i", TX_RING_PREFIX, portid);
if (r == NULL)
rte_exit(EXIT_FAILURE,
"Cannot create ring %s\n", name);
ctrl->vm_ports[portid].tx_ring = r;
}
rte_exit(EXIT_FAILURE,
"Cannot create IVSHMEM metadata\n");
rte_exit(EXIT_FAILURE,
"Cannot add memzone to IVSHMEM metadata\n");
rte_exit(EXIT_FAILURE,
"Cannot add mbuf mempool to IVSHMEM metadata\n");
for (portid = 0; portid < nb_ports_available; portid++) {
METADATA_NAME) < 0)
rte_exit(EXIT_FAILURE,
"Cannot add ring %s to IVSHMEM metadata\n",
ctrl->vm_ports[portid].rx_ring->name);
METADATA_NAME) < 0)
rte_exit(EXIT_FAILURE,
"Cannot add ring %s to IVSHMEM metadata\n",
ctrl->vm_ports[portid].tx_ring->name);
}
generate_ivshmem_cmdline(METADATA_NAME);
ctrl->nb_ports = nb_ports_available;
printf("Waiting for VM to initialize...\n");
while (ctrl->state != STATE_FWD) {
if (ctrl->state == STATE_FAIL)
rte_exit(EXIT_FAILURE,
"VM reported failure\n");
sleep(1);
}
printf("Done!\n");
sigsetup();
return -1;
}
if (ctrl->state == STATE_FAIL)
rte_exit(EXIT_FAILURE,
"VM reported failure\n");
return 0;
}