DPDK  20.11.3
examples/l3fwd/main.c
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2016 Intel Corporation
*/
#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 <signal.h>
#include <stdbool.h>
#include <rte_common.h>
#include <rte_vect.h>
#include <rte_byteorder.h>
#include <rte_log.h>
#include <rte_malloc.h>
#include <rte_memory.h>
#include <rte_memcpy.h>
#include <rte_eal.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_interrupts.h>
#include <rte_random.h>
#include <rte_debug.h>
#include <rte_ether.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_cpuflags.h>
#include <cmdline_parse.h>
#include <cmdline_parse_etheraddr.h>
#include "l3fwd.h"
#include "l3fwd_event.h"
#define MAX_TX_QUEUE_PER_PORT RTE_MAX_LCORE
#define MAX_RX_QUEUE_PER_PORT 128
#define MAX_LCORE_PARAMS 1024
/* Static global variables used within this file. */
static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
static int promiscuous_on;
/* Select Longest-Prefix or Exact match. */
static int l3fwd_lpm_on;
static int l3fwd_em_on;
/* Global variables. */
static int numa_on = 1;
static int parse_ptype;
static int per_port_pool;
volatile bool force_quit;
/* ethernet addresses of ports */
uint64_t dest_eth_addr[RTE_MAX_ETHPORTS];
struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
xmm_t val_eth[RTE_MAX_ETHPORTS];
/* mask of enabled ports */
uint32_t enabled_port_mask;
/* Used only in exact match mode. */
int ipv6;
uint32_t hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
struct lcore_conf lcore_conf[RTE_MAX_LCORE];
struct lcore_params {
uint16_t port_id;
uint8_t queue_id;
uint8_t lcore_id;
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 = RTE_ETHER_MAX_LEN,
.split_hdr_size = 0,
.offloads = DEV_RX_OFFLOAD_CHECKSUM,
},
.rx_adv_conf = {
.rss_conf = {
.rss_key = NULL,
.rss_hf = ETH_RSS_IP,
},
},
.txmode = {
.mq_mode = ETH_MQ_TX_NONE,
},
};
static struct rte_mempool *pktmbuf_pool[RTE_MAX_ETHPORTS][NB_SOCKETS];
static uint8_t lkp_per_socket[NB_SOCKETS];
struct l3fwd_lkp_mode {
void (*setup)(int);
int (*check_ptype)(int);
rte_rx_callback_fn cb_parse_ptype;
int (*main_loop)(void *);
void* (*get_ipv4_lookup_struct)(int);
void* (*get_ipv6_lookup_struct)(int);
};
static struct l3fwd_lkp_mode l3fwd_lkp;
static struct l3fwd_lkp_mode l3fwd_em_lkp = {
.setup = setup_hash,
.check_ptype = em_check_ptype,
.cb_parse_ptype = em_cb_parse_ptype,
.main_loop = em_main_loop,
.get_ipv4_lookup_struct = em_get_ipv4_l3fwd_lookup_struct,
.get_ipv6_lookup_struct = em_get_ipv6_l3fwd_lookup_struct,
};
static struct l3fwd_lkp_mode l3fwd_lpm_lkp = {
.setup = setup_lpm,
.check_ptype = lpm_check_ptype,
.cb_parse_ptype = lpm_cb_parse_ptype,
.main_loop = lpm_main_loop,
.get_ipv4_lookup_struct = lpm_get_ipv4_l3fwd_lookup_struct,
.get_ipv6_lookup_struct = lpm_get_ipv6_l3fwd_lookup_struct,
};
/*
* Setup lookup methods for forwarding.
* Currently exact-match and longest-prefix-match
* are supported ones.
*/
static void
setup_l3fwd_lookup_tables(void)
{
/* Setup HASH lookup functions. */
if (l3fwd_em_on)
l3fwd_lkp = l3fwd_em_lkp;
/* Setup LPM lookup functions. */
else
l3fwd_lkp = l3fwd_lpm_lkp;
}
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(void)
{
uint16_t 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 (!rte_eth_dev_is_valid_port(portid)) {
printf("port %u is not present on the board\n", portid);
return -1;
}
}
return 0;
}
static uint8_t
get_port_n_rx_queues(const uint16_t port)
{
int queue = -1;
uint16_t i;
for (i = 0; i < nb_lcore_params; ++i) {
if (lcore_params[i].port_id == port) {
if (lcore_params[i].queue_id == queue+1)
queue = lcore_params[i].queue_id;
else
rte_exit(EXIT_FAILURE, "queue ids of the port %d must be"
" in sequence and must start with 0\n",
lcore_params[i].port_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)
{
fprintf(stderr, "%s [EAL options] --"
" -p PORTMASK"
" [-P]"
" [-E]"
" [-L]"
" --config (port,queue,lcore)[,(port,queue,lcore)]"
" [--eth-dest=X,MM:MM:MM:MM:MM:MM]"
" [--enable-jumbo [--max-pkt-len PKTLEN]]"
" [--no-numa]"
" [--hash-entry-num]"
" [--ipv6]"
" [--parse-ptype]"
" [--per-port-pool]"
" [--mode]"
" [--eventq-sched]\n\n"
" -p PORTMASK: Hexadecimal bitmask of ports to configure\n"
" -P : Enable promiscuous mode\n"
" -E : Enable exact match\n"
" -L : Enable longest prefix match (default)\n"
" --config (port,queue,lcore): Rx queue configuration\n"
" --eth-dest=X,MM:MM:MM:MM:MM:MM: Ethernet destination for port X\n"
" --enable-jumbo: Enable jumbo frames\n"
" --max-pkt-len: Under the premise of enabling jumbo,\n"
" maximum packet length in decimal (64-9600)\n"
" --no-numa: Disable numa awareness\n"
" --hash-entry-num: Specify the hash entry number in hexadecimal to be setup\n"
" --ipv6: Set if running ipv6 packets\n"
" --parse-ptype: Set to use software to analyze packet type\n"
" --per-port-pool: Use separate buffer pool per port\n"
" --mode: Packet transfer mode for I/O, poll or eventdev\n"
" Default mode = poll\n"
" --eventq-sched: Event queue synchronization method\n"
" ordered, atomic or parallel.\n"
" Default: atomic\n"
" Valid only if --mode=eventdev\n"
" --event-eth-rxqs: Number of ethernet RX queues per device.\n"
" Default: 1\n"
" Valid only if --mode=eventdev\n\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 0;
return pm;
}
static int
parse_hash_entry_number(const char *hash_entry_num)
{
char *end = NULL;
unsigned long hash_en;
/* parse hexadecimal string */
hash_en = strtoul(hash_entry_num, &end, 16);
if ((hash_entry_num[0] == '\0') || (end == NULL) || (*end != '\0'))
return -1;
if (hash_en == 0)
return -1;
return hash_en;
}
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;
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;
}
static void
parse_eth_dest(const char *optarg)
{
uint16_t portid;
char *port_end;
uint8_t c, *dest, peer_addr[6];
errno = 0;
portid = strtoul(optarg, &port_end, 10);
if (errno != 0 || port_end == optarg || *port_end++ != ',')
rte_exit(EXIT_FAILURE,
"Invalid eth-dest: %s", optarg);
if (portid >= RTE_MAX_ETHPORTS)
rte_exit(EXIT_FAILURE,
"eth-dest: port %d >= RTE_MAX_ETHPORTS(%d)\n",
portid, RTE_MAX_ETHPORTS);
if (cmdline_parse_etheraddr(NULL, port_end,
&peer_addr, sizeof(peer_addr)) < 0)
rte_exit(EXIT_FAILURE,
"Invalid ethernet address: %s\n",
port_end);
dest = (uint8_t *)&dest_eth_addr[portid];
for (c = 0; c < 6; c++)
dest[c] = peer_addr[c];
*(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
}
static void
parse_mode(const char *optarg)
{
struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
if (!strcmp(optarg, "poll"))
evt_rsrc->enabled = false;
else if (!strcmp(optarg, "eventdev"))
evt_rsrc->enabled = true;
}
static void
parse_eventq_sched(const char *optarg)
{
struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
if (!strcmp(optarg, "ordered"))
evt_rsrc->sched_type = RTE_SCHED_TYPE_ORDERED;
if (!strcmp(optarg, "atomic"))
evt_rsrc->sched_type = RTE_SCHED_TYPE_ATOMIC;
if (!strcmp(optarg, "parallel"))
evt_rsrc->sched_type = RTE_SCHED_TYPE_PARALLEL;
}
static void
parse_event_eth_rx_queues(const char *eth_rx_queues)
{
struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
char *end = NULL;
uint8_t num_eth_rx_queues;
/* parse decimal string */
num_eth_rx_queues = strtoul(eth_rx_queues, &end, 10);
if ((eth_rx_queues[0] == '\0') || (end == NULL) || (*end != '\0'))
return;
if (num_eth_rx_queues == 0)
return;
evt_rsrc->eth_rx_queues = num_eth_rx_queues;
}
#define MAX_JUMBO_PKT_LEN 9600
static const char short_options[] =
"p:" /* portmask */
"P" /* promiscuous */
"L" /* enable long prefix match */
"E" /* enable exact match */
;
#define CMD_LINE_OPT_CONFIG "config"
#define CMD_LINE_OPT_ETH_DEST "eth-dest"
#define CMD_LINE_OPT_NO_NUMA "no-numa"
#define CMD_LINE_OPT_IPV6 "ipv6"
#define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
#define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
#define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
#define CMD_LINE_OPT_PER_PORT_POOL "per-port-pool"
#define CMD_LINE_OPT_MODE "mode"
#define CMD_LINE_OPT_EVENTQ_SYNC "eventq-sched"
#define CMD_LINE_OPT_EVENT_ETH_RX_QUEUES "event-eth-rxqs"
enum {
/* long options mapped to a short option */
/* first long only option value must be >= 256, so that we won't
* conflict with short options */
CMD_LINE_OPT_MIN_NUM = 256,
CMD_LINE_OPT_CONFIG_NUM,
CMD_LINE_OPT_ETH_DEST_NUM,
CMD_LINE_OPT_NO_NUMA_NUM,
CMD_LINE_OPT_IPV6_NUM,
CMD_LINE_OPT_ENABLE_JUMBO_NUM,
CMD_LINE_OPT_HASH_ENTRY_NUM_NUM,
CMD_LINE_OPT_PARSE_PTYPE_NUM,
CMD_LINE_OPT_PARSE_PER_PORT_POOL,
CMD_LINE_OPT_MODE_NUM,
CMD_LINE_OPT_EVENTQ_SYNC_NUM,
CMD_LINE_OPT_EVENT_ETH_RX_QUEUES_NUM,
};
static const struct option lgopts[] = {
{CMD_LINE_OPT_CONFIG, 1, 0, CMD_LINE_OPT_CONFIG_NUM},
{CMD_LINE_OPT_ETH_DEST, 1, 0, CMD_LINE_OPT_ETH_DEST_NUM},
{CMD_LINE_OPT_NO_NUMA, 0, 0, CMD_LINE_OPT_NO_NUMA_NUM},
{CMD_LINE_OPT_IPV6, 0, 0, CMD_LINE_OPT_IPV6_NUM},
{CMD_LINE_OPT_ENABLE_JUMBO, 0, 0, CMD_LINE_OPT_ENABLE_JUMBO_NUM},
{CMD_LINE_OPT_HASH_ENTRY_NUM, 1, 0, CMD_LINE_OPT_HASH_ENTRY_NUM_NUM},
{CMD_LINE_OPT_PARSE_PTYPE, 0, 0, CMD_LINE_OPT_PARSE_PTYPE_NUM},
{CMD_LINE_OPT_PER_PORT_POOL, 0, 0, CMD_LINE_OPT_PARSE_PER_PORT_POOL},
{CMD_LINE_OPT_MODE, 1, 0, CMD_LINE_OPT_MODE_NUM},
{CMD_LINE_OPT_EVENTQ_SYNC, 1, 0, CMD_LINE_OPT_EVENTQ_SYNC_NUM},
{CMD_LINE_OPT_EVENT_ETH_RX_QUEUES, 1, 0,
CMD_LINE_OPT_EVENT_ETH_RX_QUEUES_NUM},
{NULL, 0, 0, 0}
};
/*
* 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(nports) RTE_MAX( \
(nports*nb_rx_queue*nb_rxd + \
nports*nb_lcores*MAX_PKT_BURST + \
nports*n_tx_queue*nb_txd + \
nb_lcores*MEMPOOL_CACHE_SIZE), \
(unsigned)8192)
/* 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];
uint8_t lcore_params = 0;
uint8_t eventq_sched = 0;
uint8_t eth_rx_q = 0;
struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
argvopt = argv;
/* Error or normal output strings. */
while ((opt = getopt_long(argc, argvopt, short_options,
lgopts, &option_index)) != EOF) {
switch (opt) {
/* portmask */
case 'p':
enabled_port_mask = parse_portmask(optarg);
if (enabled_port_mask == 0) {
fprintf(stderr, "Invalid portmask\n");
print_usage(prgname);
return -1;
}
break;
case 'P':
promiscuous_on = 1;
break;
case 'E':
l3fwd_em_on = 1;
break;
case 'L':
l3fwd_lpm_on = 1;
break;
/* long options */
case CMD_LINE_OPT_CONFIG_NUM:
ret = parse_config(optarg);
if (ret) {
fprintf(stderr, "Invalid config\n");
print_usage(prgname);
return -1;
}
lcore_params = 1;
break;
case CMD_LINE_OPT_ETH_DEST_NUM:
parse_eth_dest(optarg);
break;
case CMD_LINE_OPT_NO_NUMA_NUM:
numa_on = 0;
break;
case CMD_LINE_OPT_IPV6_NUM:
ipv6 = 1;
break;
case CMD_LINE_OPT_ENABLE_JUMBO_NUM: {
const struct option lenopts = {
"max-pkt-len", required_argument, 0, 0
};
port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
/*
* if no max-pkt-len set, use the default
* value RTE_ETHER_MAX_LEN.
*/
if (getopt_long(argc, argvopt, "",
&lenopts, &option_index) == 0) {
ret = parse_max_pkt_len(optarg);
if (ret < 64 || ret > MAX_JUMBO_PKT_LEN) {
fprintf(stderr,
"invalid maximum packet length\n");
print_usage(prgname);
return -1;
}
port_conf.rxmode.max_rx_pkt_len = ret;
}
break;
}
case CMD_LINE_OPT_HASH_ENTRY_NUM_NUM:
ret = parse_hash_entry_number(optarg);
if ((ret > 0) && (ret <= L3FWD_HASH_ENTRIES)) {
hash_entry_number = ret;
} else {
fprintf(stderr, "invalid hash entry number\n");
print_usage(prgname);
return -1;
}
break;
case CMD_LINE_OPT_PARSE_PTYPE_NUM:
printf("soft parse-ptype is enabled\n");
parse_ptype = 1;
break;
case CMD_LINE_OPT_PARSE_PER_PORT_POOL:
printf("per port buffer pool is enabled\n");
per_port_pool = 1;
break;
case CMD_LINE_OPT_MODE_NUM:
parse_mode(optarg);
break;
case CMD_LINE_OPT_EVENTQ_SYNC_NUM:
parse_eventq_sched(optarg);
eventq_sched = 1;
break;
case CMD_LINE_OPT_EVENT_ETH_RX_QUEUES_NUM:
parse_event_eth_rx_queues(optarg);
eth_rx_q = 1;
break;
default:
print_usage(prgname);
return -1;
}
}
/* If both LPM and EM are selected, return error. */
if (l3fwd_lpm_on && l3fwd_em_on) {
fprintf(stderr, "LPM and EM are mutually exclusive, select only one\n");
return -1;
}
if (evt_rsrc->enabled && lcore_params) {
fprintf(stderr, "lcore config is not valid when event mode is selected\n");
return -1;
}
if (!evt_rsrc->enabled && eth_rx_q) {
fprintf(stderr, "eth_rx_queues is valid only when event mode is selected\n");
return -1;
}
if (!evt_rsrc->enabled && eventq_sched) {
fprintf(stderr, "eventq_sched is valid only when event mode is selected\n");
return -1;
}
/*
* Nothing is selected, pick longest-prefix match
* as default match.
*/
if (!l3fwd_lpm_on && !l3fwd_em_on) {
fprintf(stderr, "LPM or EM none selected, default LPM on\n");
l3fwd_lpm_on = 1;
}
/*
* ipv6 and hash flags are valid only for
* exact macth, reset them to default for
* longest-prefix match.
*/
if (l3fwd_lpm_on) {
ipv6 = 0;
hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
}
if (optind >= 0)
argv[optind-1] = prgname;
ret = optind-1;
optind = 1; /* reset getopt lib */
return ret;
}
static void
print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
{
char buf[RTE_ETHER_ADDR_FMT_SIZE];
rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
printf("%s%s", name, buf);
}
int
init_mem(uint16_t portid, unsigned int 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[portid][socketid] == NULL) {
snprintf(s, sizeof(s), "mbuf_pool_%d:%d",
portid, socketid);
pktmbuf_pool[portid][socketid] =
MEMPOOL_CACHE_SIZE, 0,
RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
if (pktmbuf_pool[portid][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);
/* Setup either LPM or EM(f.e Hash). But, only once per
* available socket.
*/
if (!lkp_per_socket[socketid]) {
l3fwd_lkp.setup(socketid);
lkp_per_socket[socketid] = 1;
}
}
qconf = &lcore_conf[lcore_id];
qconf->ipv4_lookup_struct =
l3fwd_lkp.get_ipv4_lookup_struct(socketid);
qconf->ipv6_lookup_struct =
l3fwd_lkp.get_ipv6_lookup_struct(socketid);
}
return 0;
}
/* Check the link status of all ports in up to 9s, and print them finally */
static void
check_all_ports_link_status(uint32_t port_mask)
{
#define CHECK_INTERVAL 100 /* 100ms */
#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
uint16_t portid;
uint8_t count, all_ports_up, print_flag = 0;
struct rte_eth_link link;
int ret;
char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
printf("\nChecking link status");
fflush(stdout);
for (count = 0; count <= MAX_CHECK_TIME; count++) {
if (force_quit)
return;
all_ports_up = 1;
if (force_quit)
return;
if ((port_mask & (1 << portid)) == 0)
continue;
memset(&link, 0, sizeof(link));
ret = rte_eth_link_get_nowait(portid, &link);
if (ret < 0) {
all_ports_up = 0;
if (print_flag == 1)
printf("Port %u link get failed: %s\n",
portid, rte_strerror(-ret));
continue;
}
/* print link status if flag set */
if (print_flag == 1) {
rte_eth_link_to_str(link_status_text,
sizeof(link_status_text), &link);
printf("Port %d %s\n", portid,
link_status_text);
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) {
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");
}
}
}
static void
signal_handler(int signum)
{
if (signum == SIGINT || signum == SIGTERM) {
printf("\n\nSignal %d received, preparing to exit...\n",
signum);
force_quit = true;
}
}
static int
prepare_ptype_parser(uint16_t portid, uint16_t queueid)
{
if (parse_ptype) {
printf("Port %d: softly parse packet type info\n", portid);
if (rte_eth_add_rx_callback(portid, queueid,
l3fwd_lkp.cb_parse_ptype,
NULL))
return 1;
printf("Failed to add rx callback: port=%d\n", portid);
return 0;
}
if (l3fwd_lkp.check_ptype(portid))
return 1;
printf("port %d cannot parse packet type, please add --%s\n",
portid, CMD_LINE_OPT_PARSE_PTYPE);
return 0;
}
static void
l3fwd_poll_resource_setup(void)
{
uint8_t nb_rx_queue, queue, socketid;
struct rte_eth_dev_info dev_info;
uint32_t n_tx_queue, nb_lcores;
struct rte_eth_txconf *txconf;
struct lcore_conf *qconf;
uint16_t queueid, portid;
unsigned int nb_ports;
unsigned int lcore_id;
int ret;
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");
if (check_port_config() < 0)
rte_exit(EXIT_FAILURE, "check_port_config failed\n");
nb_lcores = rte_lcore_count();
/* initialize all ports */
struct rte_eth_conf local_port_conf = port_conf;
/* 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_info_get(portid, &dev_info);
if (ret != 0)
rte_exit(EXIT_FAILURE,
"Error during getting device (port %u) info: %s\n",
portid, strerror(-ret));
if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
local_port_conf.txmode.offloads |=
local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
dev_info.flow_type_rss_offloads;
if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
printf("Port %u modified RSS hash function based on hardware support,"
"requested:%#"PRIx64" configured:%#"PRIx64"\n",
portid,
local_port_conf.rx_adv_conf.rss_conf.rss_hf);
}
ret = rte_eth_dev_configure(portid, nb_rx_queue,
(uint16_t)n_tx_queue, &local_port_conf);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Cannot configure device: err=%d, port=%d\n",
ret, portid);
ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
&nb_txd);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Cannot adjust number of descriptors: err=%d, "
"port=%d\n", ret, portid);
ret = rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Cannot get MAC address: err=%d, port=%d\n",
ret, portid);
print_ethaddr(" Address:", &ports_eth_addr[portid]);
printf(", ");
print_ethaddr("Destination:",
(const struct rte_ether_addr *)&dest_eth_addr[portid]);
printf(", ");
/*
* prepare src MACs for each port.
*/
rte_ether_addr_copy(&ports_eth_addr[portid],
(struct rte_ether_addr *)(val_eth + portid) + 1);
/* init memory */
if (!per_port_pool) {
/* portid = 0; this is *not* signifying the first port,
* rather, it signifies that portid is ignored.
*/
ret = init_mem(0, NB_MBUF(nb_ports));
} else {
ret = init_mem(portid, NB_MBUF(1));
}
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);
txconf = &dev_info.default_txconf;
txconf->offloads = local_port_conf.txmode.offloads;
ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
socketid, txconf);
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++;
qconf->tx_port_id[qconf->n_tx_port] = portid;
qconf->n_tx_port++;
}
printf("\n");
}
for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
if (rte_lcore_is_enabled(lcore_id) == 0)
continue;
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) {
struct rte_eth_rxconf rxq_conf;
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_dev_info_get(portid, &dev_info);
if (ret != 0)
rte_exit(EXIT_FAILURE,
"Error during getting device (port %u) info: %s\n",
portid, strerror(-ret));
rxq_conf = dev_info.default_rxconf;
rxq_conf.offloads = port_conf.rxmode.offloads;
if (!per_port_pool)
ret = rte_eth_rx_queue_setup(portid, queueid,
nb_rxd, socketid,
&rxq_conf,
pktmbuf_pool[0][socketid]);
else
ret = rte_eth_rx_queue_setup(portid, queueid,
nb_rxd, socketid,
&rxq_conf,
pktmbuf_pool[portid][socketid]);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"rte_eth_rx_queue_setup: err=%d, port=%d\n",
ret, portid);
}
}
}
static inline int
l3fwd_service_enable(uint32_t service_id)
{
uint8_t min_service_count = UINT8_MAX;
uint32_t slcore_array[RTE_MAX_LCORE];
unsigned int slcore = 0;
uint8_t service_count;
int32_t slcore_count;
return -ENOENT;
slcore_count = rte_service_lcore_list(slcore_array, RTE_MAX_LCORE);
if (slcore_count < 0)
return -ENOENT;
/* Get the core which has least number of services running. */
while (slcore_count--) {
/* Reset default mapping */
if (rte_service_map_lcore_set(service_id,
slcore_array[slcore_count], 0) != 0)
return -ENOENT;
slcore_array[slcore_count]);
if (service_count < min_service_count) {
slcore = slcore_array[slcore_count];
min_service_count = service_count;
}
}
if (rte_service_map_lcore_set(service_id, slcore, 1))
return -ENOENT;
return 0;
}
static void
l3fwd_event_service_setup(void)
{
struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
struct rte_event_dev_info evdev_info;
uint32_t service_id, caps;
int ret, i;
rte_event_dev_info_get(evt_rsrc->event_d_id, &evdev_info);
if (!(evdev_info.event_dev_cap & RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED)) {
ret = rte_event_dev_service_id_get(evt_rsrc->event_d_id,
&service_id);
if (ret != -ESRCH && ret != 0)
rte_exit(EXIT_FAILURE,
"Error in starting eventdev service\n");
l3fwd_service_enable(service_id);
}
for (i = 0; i < evt_rsrc->rx_adptr.nb_rx_adptr; i++) {
ret = rte_event_eth_rx_adapter_caps_get(evt_rsrc->event_d_id,
evt_rsrc->rx_adptr.rx_adptr[i], &caps);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Failed to get Rx adapter[%d] caps\n",
evt_rsrc->rx_adptr.rx_adptr[i]);
evt_rsrc->event_d_id,
&service_id);
if (ret != -ESRCH && ret != 0)
rte_exit(EXIT_FAILURE,
"Error in starting Rx adapter[%d] service\n",
evt_rsrc->rx_adptr.rx_adptr[i]);
l3fwd_service_enable(service_id);
}
for (i = 0; i < evt_rsrc->tx_adptr.nb_tx_adptr; i++) {
ret = rte_event_eth_tx_adapter_caps_get(evt_rsrc->event_d_id,
evt_rsrc->tx_adptr.tx_adptr[i], &caps);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Failed to get Rx adapter[%d] caps\n",
evt_rsrc->tx_adptr.tx_adptr[i]);
evt_rsrc->event_d_id,
&service_id);
if (ret != -ESRCH && ret != 0)
rte_exit(EXIT_FAILURE,
"Error in starting Rx adapter[%d] service\n",
evt_rsrc->tx_adptr.tx_adptr[i]);
l3fwd_service_enable(service_id);
}
}
int
main(int argc, char **argv)
{
struct l3fwd_event_resources *evt_rsrc;
struct lcore_conf *qconf;
uint16_t queueid, portid;
unsigned int lcore_id;
uint8_t queue;
int i, ret;
/* init EAL */
ret = rte_eal_init(argc, argv);
if (ret < 0)
rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
argc -= ret;
argv += ret;
force_quit = false;
signal(SIGINT, signal_handler);
signal(SIGTERM, signal_handler);
/* pre-init dst MACs for all ports to 02:00:00:00:00:xx */
for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
dest_eth_addr[portid] =
RTE_ETHER_LOCAL_ADMIN_ADDR + ((uint64_t)portid << 40);
*(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
}
evt_rsrc = l3fwd_get_eventdev_rsrc();
/* parse application arguments (after the EAL ones) */
ret = parse_args(argc, argv);
if (ret < 0)
rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
/* Setup function pointers for lookup method. */
setup_l3fwd_lookup_tables();
evt_rsrc->per_port_pool = per_port_pool;
evt_rsrc->pkt_pool = pktmbuf_pool;
evt_rsrc->port_mask = enabled_port_mask;
/* Configure eventdev parameters if user has requested */
if (evt_rsrc->enabled) {
l3fwd_event_resource_setup(&port_conf);
if (l3fwd_em_on)
l3fwd_lkp.main_loop = evt_rsrc->ops.em_event_loop;
else
l3fwd_lkp.main_loop = evt_rsrc->ops.lpm_event_loop;
l3fwd_event_service_setup();
} else
l3fwd_poll_resource_setup();
/* start ports */
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) {
if (ret != 0)
rte_exit(EXIT_FAILURE,
"rte_eth_promiscuous_enable: err=%s, port=%u\n",
rte_strerror(-ret), portid);
}
}
printf("\n");
for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
if (rte_lcore_is_enabled(lcore_id) == 0)
continue;
qconf = &lcore_conf[lcore_id];
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 (prepare_ptype_parser(portid, queueid) == 0)
rte_exit(EXIT_FAILURE, "ptype check fails\n");
}
}
check_all_ports_link_status(enabled_port_mask);
ret = 0;
/* launch per-lcore init on every lcore */
rte_eal_mp_remote_launch(l3fwd_lkp.main_loop, NULL, CALL_MAIN);
if (evt_rsrc->enabled) {
for (i = 0; i < evt_rsrc->rx_adptr.nb_rx_adptr; i++)
evt_rsrc->rx_adptr.rx_adptr[i]);
for (i = 0; i < evt_rsrc->tx_adptr.nb_tx_adptr; i++)
evt_rsrc->tx_adptr.tx_adptr[i]);
if ((enabled_port_mask & (1 << portid)) == 0)
continue;
ret = rte_eth_dev_stop(portid);
if (ret != 0)
printf("rte_eth_dev_stop: err=%d, port=%u\n",
ret, portid);
}
if ((enabled_port_mask & (1 << portid)) == 0)
continue;
}
rte_event_dev_stop(evt_rsrc->event_d_id);
rte_event_dev_close(evt_rsrc->event_d_id);
} else {
if ((enabled_port_mask & (1 << portid)) == 0)
continue;
printf("Closing port %d...", portid);
ret = rte_eth_dev_stop(portid);
if (ret != 0)
printf("rte_eth_dev_stop: err=%d, port=%u\n",
ret, portid);
printf(" Done\n");
}
}
/* clean up the EAL */
printf("Bye...\n");
return ret;
}