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examples/l2fwd-event: add default poll mode routines

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Add the default l2fwd poll mode routines similar to examples/l2fwd.

Signed-off-by: Sunil Kumar Kori <skori@marvell.com>
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
This commit is contained in:
Pavan Nikhilesh 2019-10-30 21:56:42 +05:30 committed by Jerin Jacob
parent ea8403d084
commit 4ff457986f
10 changed files with 947 additions and 1 deletions
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5
MAINTAINERS
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@ -1503,6 +1503,11 @@ M: Tomasz Kantecki <tomasz.kantecki@intel.com>
F: doc/guides/sample_app_ug/l2_forward_cat.rst
F: examples/l2fwd-cat/
M: Sunil Kumar Kori <skori@marvell.com>
M: Pavan Nikhilesh <pbhagavatula@marvell.com>
T: git://dpdk.org/next/dpdk-next-eventdev
F: examples/l2fwd-event/
F: examples/l3fwd/
F: doc/guides/sample_app_ug/l3_forward.rst

1
examples/Makefile
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@ -36,6 +36,7 @@ endif
DIRS-$(CONFIG_RTE_LIBRTE_HASH) += ipv4_multicast
DIRS-$(CONFIG_RTE_LIBRTE_KNI) += kni
DIRS-y += l2fwd
DIRS-y += l2fwd-event
ifneq ($(PQOS_INSTALL_PATH),)
DIRS-y += l2fwd-cat
endif

59
examples/l2fwd-event/Makefile Normal file
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@ -0,0 +1,59 @@
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(C) 2019 Marvell International Ltd.
#
# binary name
APP = l2fwd-event
# all source are stored in SRCS-y
SRCS-y := main.c
SRCS-y += l2fwd_poll.c
SRCS-y += l2fwd_common.c
# Build using pkg-config variables if possible
ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
all: shared
.PHONY: shared static
shared: build/$(APP)-shared
ln -sf $(APP)-shared build/$(APP)
static: build/$(APP)-static
ln -sf $(APP)-static build/$(APP)
PKGCONF=pkg-config --define-prefix
PC_FILE := $(shell $(PKGCONF) --path libdpdk)
CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
build/$(APP)-static: $(SRCS-y) Makefile $(PC_FILE) | build
$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_STATIC)
build:
@mkdir -p $@
.PHONY: clean
clean:
rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
test -d build && rmdir -p build || true
else # Build using legacy build system
ifeq ($(RTE_SDK),)
$(error "Please define RTE_SDK environment variable")
endif
# Default target, detect a build directory, by looking for a path with a .config
RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard $(RTE_SDK)/*/.config)))))
include $(RTE_SDK)/mk/rte.vars.mk
CFLAGS += -O3
CFLAGS += $(WERROR_FLAGS)
include $(RTE_SDK)/mk/rte.extapp.mk
endif

91
examples/l2fwd-event/l2fwd_common.c Normal file
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@ -0,0 +1,91 @@
#include "l2fwd_common.h"
int
l2fwd_event_init_ports(struct l2fwd_resources *rsrc)
{
uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
struct rte_eth_conf port_conf = {
.rxmode = {
.max_rx_pkt_len = RTE_ETHER_MAX_LEN,
.split_hdr_size = 0,
},
.txmode = {
.mq_mode = ETH_MQ_TX_NONE,
},
};
uint16_t nb_ports_available = 0;
uint16_t port_id;
int ret;
/* Initialise each port */
RTE_ETH_FOREACH_DEV(port_id) {
struct rte_eth_conf local_port_conf = port_conf;
struct rte_eth_dev_info dev_info;
struct rte_eth_rxconf rxq_conf;
struct rte_eth_txconf txq_conf;
/* skip ports that are not enabled */
if ((rsrc->enabled_port_mask & (1 << port_id)) == 0) {
printf("Skipping disabled port %u\n", port_id);
continue;
}
nb_ports_available++;
/* init port */
printf("Initializing port %u... ", port_id);
fflush(stdout);
rte_eth_dev_info_get(port_id, &dev_info);
if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
local_port_conf.txmode.offloads |=
DEV_TX_OFFLOAD_MBUF_FAST_FREE;
ret = rte_eth_dev_configure(port_id, 1, 1, &local_port_conf);
if (ret < 0)
rte_panic("Cannot configure device: err=%d, port=%u\n",
ret, port_id);
ret = rte_eth_dev_adjust_nb_rx_tx_desc(port_id, &nb_rxd,
&nb_txd);
if (ret < 0)
rte_panic("Cannot adjust number of descriptors: err=%d, port=%u\n",
ret, port_id);
rte_eth_macaddr_get(port_id, &rsrc->eth_addr[port_id]);
/* init one RX queue */
fflush(stdout);
rxq_conf = dev_info.default_rxconf;
rxq_conf.offloads = local_port_conf.rxmode.offloads;
ret = rte_eth_rx_queue_setup(port_id, 0, nb_rxd,
rte_eth_dev_socket_id(port_id),
&rxq_conf,
rsrc->pktmbuf_pool);
if (ret < 0)
rte_panic("rte_eth_rx_queue_setup:err=%d, port=%u\n",
ret, port_id);
/* init one TX queue on each port */
fflush(stdout);
txq_conf = dev_info.default_txconf;
txq_conf.offloads = local_port_conf.txmode.offloads;
ret = rte_eth_tx_queue_setup(port_id, 0, nb_txd,
rte_eth_dev_socket_id(port_id),
&txq_conf);
if (ret < 0)
rte_panic("rte_eth_tx_queue_setup:err=%d, port=%u\n",
ret, port_id);
rte_eth_promiscuous_enable(port_id);
printf("Port %u,MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
port_id,
rsrc->eth_addr[port_id].addr_bytes[0],
rsrc->eth_addr[port_id].addr_bytes[1],
rsrc->eth_addr[port_id].addr_bytes[2],
rsrc->eth_addr[port_id].addr_bytes[3],
rsrc->eth_addr[port_id].addr_bytes[4],
rsrc->eth_addr[port_id].addr_bytes[5]);
}
return nb_ports_available;
}

127
examples/l2fwd-event/l2fwd_common.h Normal file
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@ -0,0 +1,127 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(C) 2019 Marvell International Ltd.
*/
#ifndef __L2FWD_COMMON_H__
#define __L2FWD_COMMON_H__
#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 <rte_common.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_branch_prediction.h>
#include <rte_interrupts.h>
#include <rte_random.h>
#include <rte_debug.h>
#include <rte_ether.h>
#include <rte_ethdev.h>
#include <rte_eventdev.h>
#include <rte_mempool.h>
#include <rte_mbuf.h>
#include <rte_spinlock.h>
#define MAX_PKT_BURST 32
#define MAX_RX_QUEUE_PER_LCORE 16
#define MAX_TX_QUEUE_PER_PORT 16
#define RTE_TEST_RX_DESC_DEFAULT 1024
#define RTE_TEST_TX_DESC_DEFAULT 1024
#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
#define MEMPOOL_CACHE_SIZE 256
#define DEFAULT_TIMER_PERIOD 10 /* default period is 10 seconds */
#define MAX_TIMER_PERIOD 86400 /* 1 day max */
/* Per-port statistics struct */
struct l2fwd_port_statistics {
uint64_t dropped;
uint64_t tx;
uint64_t rx;
} __rte_cache_aligned;
struct l2fwd_resources {
volatile uint8_t force_quit;
uint8_t mac_updating;
uint8_t rx_queue_per_lcore;
uint16_t nb_rxd;
uint16_t nb_txd;
uint32_t enabled_port_mask;
uint64_t timer_period;
struct rte_mempool *pktmbuf_pool;
uint32_t dst_ports[RTE_MAX_ETHPORTS];
struct rte_ether_addr eth_addr[RTE_MAX_ETHPORTS];
struct l2fwd_port_statistics port_stats[RTE_MAX_ETHPORTS];
void *poll_rsrc;
} __rte_cache_aligned;
static __rte_always_inline void
l2fwd_mac_updating(struct rte_mbuf *m, uint32_t dest_port_id,
struct rte_ether_addr *addr)
{
struct rte_ether_hdr *eth;
void *tmp;
eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
/* 02:00:00:00:00:xx */
tmp = &eth->d_addr.addr_bytes[0];
*((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dest_port_id << 40);
/* src addr */
rte_ether_addr_copy(addr, &eth->s_addr);
}
static __rte_always_inline struct l2fwd_resources *
l2fwd_get_rsrc(void)
{
static const char name[RTE_MEMZONE_NAMESIZE] = "rsrc";
const struct rte_memzone *mz;
mz = rte_memzone_lookup(name);
if (mz != NULL)
return mz->addr;
mz = rte_memzone_reserve(name, sizeof(struct l2fwd_resources), 0, 0);
if (mz != NULL) {
struct l2fwd_resources *rsrc = mz->addr;
memset(rsrc, 0, sizeof(struct l2fwd_resources));
rsrc->mac_updating = true;
rsrc->rx_queue_per_lcore = 1;
rsrc->timer_period = 10 * rte_get_timer_hz();
return mz->addr;
}
rte_panic("Unable to allocate memory for l2fwd resources\n");
return NULL;
}
int l2fwd_event_init_ports(struct l2fwd_resources *rsrc);
#endif /* __L2FWD_COMMON_H__ */

177
examples/l2fwd-event/l2fwd_poll.c Normal file
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@ -0,0 +1,177 @@
#include "l2fwd_poll.h"
static inline void
l2fwd_poll_simple_forward(struct l2fwd_resources *rsrc, struct rte_mbuf *m,
uint32_t portid)
{
struct rte_eth_dev_tx_buffer *buffer;
uint32_t dst_port;
int sent;
dst_port = rsrc->dst_ports[portid];
if (rsrc->mac_updating)
l2fwd_mac_updating(m, dst_port, &rsrc->eth_addr[dst_port]);
buffer = ((struct l2fwd_poll_resources *)rsrc->poll_rsrc)->tx_buffer[
dst_port];
sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
if (sent)
rsrc->port_stats[dst_port].tx += sent;
}
/* main poll mode processing loop */
static void
l2fwd_poll_main_loop(struct l2fwd_resources *rsrc)
{
uint64_t prev_tsc, diff_tsc, cur_tsc, drain_tsc;
struct l2fwd_poll_resources *poll_rsrc = rsrc->poll_rsrc;
struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
struct rte_eth_dev_tx_buffer *buf;
struct lcore_queue_conf *qconf;
uint32_t i, j, port_id, nb_rx;
struct rte_mbuf *m;
uint32_t lcore_id;
int32_t sent;
drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S *
BURST_TX_DRAIN_US;
prev_tsc = 0;
lcore_id = rte_lcore_id();
qconf = &poll_rsrc->lcore_queue_conf[lcore_id];
if (qconf->n_rx_port == 0) {
printf("lcore %u has nothing to do\n", lcore_id);
return;
}
printf("entering main loop on lcore %u\n", lcore_id);
for (i = 0; i < qconf->n_rx_port; i++) {
port_id = qconf->rx_port_list[i];
printf(" -- lcoreid=%u port_id=%u\n", lcore_id, port_id);
}
while (!rsrc->force_quit) {
cur_tsc = rte_rdtsc();
/*
* TX burst queue drain
*/
diff_tsc = cur_tsc - prev_tsc;
if (unlikely(diff_tsc > drain_tsc)) {
for (i = 0; i < qconf->n_rx_port; i++) {
port_id =
rsrc->dst_ports[qconf->rx_port_list[i]];
buf = poll_rsrc->tx_buffer[port_id];
sent = rte_eth_tx_buffer_flush(port_id, 0, buf);
if (sent)
rsrc->port_stats[port_id].tx += sent;
}
prev_tsc = cur_tsc;
}
/*
* Read packet from RX queues
*/
for (i = 0; i < qconf->n_rx_port; i++) {
port_id = qconf->rx_port_list[i];
nb_rx = rte_eth_rx_burst(port_id, 0, pkts_burst,
MAX_PKT_BURST);
rsrc->port_stats[port_id].rx += nb_rx;
for (j = 0; j < nb_rx; j++) {
m = pkts_burst[j];
rte_prefetch0(rte_pktmbuf_mtod(m, void *));
l2fwd_poll_simple_forward(rsrc, m, port_id);
}
}
}
}
static void
l2fwd_poll_lcore_config(struct l2fwd_resources *rsrc)
{
struct l2fwd_poll_resources *poll_rsrc = rsrc->poll_rsrc;
struct lcore_queue_conf *qconf = NULL;
uint32_t rx_lcore_id = 0;
uint16_t port_id;
/* Initialize the port/queue configuration of each logical core */
RTE_ETH_FOREACH_DEV(port_id) {
/* skip ports that are not enabled */
if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
continue;
/* get the lcore_id for this port */
while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
poll_rsrc->lcore_queue_conf[rx_lcore_id].n_rx_port ==
rsrc->rx_queue_per_lcore) {
rx_lcore_id++;
if (rx_lcore_id >= RTE_MAX_LCORE)
rte_panic("Not enough cores\n");
}
if (qconf != &poll_rsrc->lcore_queue_conf[rx_lcore_id]) {
/* Assigned a new logical core in the loop above. */
qconf = &poll_rsrc->lcore_queue_conf[rx_lcore_id];
}
qconf->rx_port_list[qconf->n_rx_port] = port_id;
qconf->n_rx_port++;
printf("Lcore %u: RX port %u\n", rx_lcore_id, port_id);
}
}
static void
l2fwd_poll_init_tx_buffers(struct l2fwd_resources *rsrc)
{
struct l2fwd_poll_resources *poll_rsrc = rsrc->poll_rsrc;
uint16_t port_id;
int ret;
RTE_ETH_FOREACH_DEV(port_id) {
/* Initialize TX buffers */
poll_rsrc->tx_buffer[port_id] = rte_zmalloc_socket("tx_buffer",
RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
rte_eth_dev_socket_id(port_id));
if (poll_rsrc->tx_buffer[port_id] == NULL)
rte_panic("Cannot allocate buffer for tx on port %u\n",
port_id);
rte_eth_tx_buffer_init(poll_rsrc->tx_buffer[port_id],
MAX_PKT_BURST);
ret = rte_eth_tx_buffer_set_err_callback(
poll_rsrc->tx_buffer[port_id],
rte_eth_tx_buffer_count_callback,
&rsrc->port_stats[port_id].dropped);
if (ret < 0)
rte_panic("Cannot set error callback for tx buffer on port %u\n",
port_id);
}
}
void
l2fwd_poll_resource_setup(struct l2fwd_resources *rsrc)
{
struct l2fwd_poll_resources *poll_rsrc;
poll_rsrc = rte_zmalloc("l2fwd_poll_rsrc",
sizeof(struct l2fwd_poll_resources), 0);
if (poll_rsrc == NULL)
rte_panic("Failed to allocate resources for l2fwd poll mode\n");
rsrc->poll_rsrc = poll_rsrc;
l2fwd_poll_lcore_config(rsrc);
l2fwd_poll_init_tx_buffers(rsrc);
poll_rsrc->poll_main_loop = l2fwd_poll_main_loop;
}

25
examples/l2fwd-event/l2fwd_poll.h Normal file
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@ -0,0 +1,25 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(C) 2019 Marvell International Ltd.
*/
#ifndef __L2FWD_POLL_H__
#define __L2FWD_POLL_H__
#include "l2fwd_common.h"
typedef void (*poll_main_loop_cb)(struct l2fwd_resources *rsrc);
struct lcore_queue_conf {
uint32_t rx_port_list[MAX_RX_QUEUE_PER_LCORE];
uint32_t n_rx_port;
} __rte_cache_aligned;
struct l2fwd_poll_resources {
poll_main_loop_cb poll_main_loop;
struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
};
void l2fwd_poll_resource_setup(struct l2fwd_resources *rsrc);
#endif

446
examples/l2fwd-event/main.c Normal file
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@ -0,0 +1,446 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(C) 2019 Marvell International Ltd.
*/
#include "l2fwd_poll.h"
/* display usage */
static void
l2fwd_event_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"
" -T PERIOD: statistics will be refreshed each PERIOD seconds "
" (0 to disable, 10 default, 86400 maximum)\n"
" --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n"
" When enabled:\n"
" - The source MAC address is replaced by the TX port MAC address\n"
" - The destination MAC address is replaced by 02:00:00:00:00:TX_PORT_ID\n",
prgname);
}
static int
l2fwd_event_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;
if (pm == 0)
return -1;
return pm;
}
static unsigned int
l2fwd_event_parse_nqueue(const char *q_arg)
{
char *end = NULL;
unsigned long n;
/* parse hexadecimal string */
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_event_parse_timer_period(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;
if (n >= MAX_TIMER_PERIOD)
return -1;
return n;
}
static const char short_options[] =
"p:" /* portmask */
"q:" /* number of queues */
"T:" /* timer period */
;
#define CMD_LINE_OPT_MAC_UPDATING "mac-updating"
#define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating"
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,
};
/* Parse the argument given in the command line of the application */
static int
l2fwd_event_parse_args(int argc, char **argv,
struct l2fwd_resources *rsrc)
{
int mac_updating = 1;
struct option lgopts[] = {
{ CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1},
{ CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0},
{NULL, 0, 0, 0}
};
int opt, ret, timer_secs;
char *prgname = argv[0];
char **argvopt;
int option_index;
argvopt = argv;
while ((opt = getopt_long(argc, argvopt, short_options,
lgopts, &option_index)) != EOF) {
switch (opt) {
/* portmask */
case 'p':
rsrc->enabled_port_mask =
l2fwd_event_parse_portmask(optarg);
if (rsrc->enabled_port_mask == 0) {
printf("invalid portmask\n");
l2fwd_event_usage(prgname);
return -1;
}
break;
/* nqueue */
case 'q':
rsrc->rx_queue_per_lcore =
l2fwd_event_parse_nqueue(optarg);
if (rsrc->rx_queue_per_lcore == 0) {
printf("invalid queue number\n");
l2fwd_event_usage(prgname);
return -1;
}
break;
/* timer period */
case 'T':
timer_secs = l2fwd_event_parse_timer_period(optarg);
if (timer_secs < 0) {
printf("invalid timer period\n");
l2fwd_event_usage(prgname);
return -1;
}
rsrc->timer_period = timer_secs;
/* convert to number of cycles */
rsrc->timer_period *= rte_get_timer_hz();
break;
/* long options */
case 0:
break;
default:
l2fwd_event_usage(prgname);
return -1;
}
}
rsrc->mac_updating = mac_updating;
if (optind >= 0)
argv[optind-1] = prgname;
ret = optind-1;
optind = 1; /* reset getopt lib */
return ret;
}
static int
l2fwd_launch_one_lcore(void *args)
{
struct l2fwd_resources *rsrc = args;
struct l2fwd_poll_resources *poll_rsrc = rsrc->poll_rsrc;
poll_rsrc->poll_main_loop(rsrc);
return 0;
}
/* Check the link status of all ports in up to 9s, and print them finally */
static void
check_all_ports_link_status(struct l2fwd_resources *rsrc,
uint32_t port_mask)
{
#define CHECK_INTERVAL 100 /* 100ms */
#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
uint16_t port_id;
uint8_t count, all_ports_up, print_flag = 0;
struct rte_eth_link link;
printf("\nChecking link status...");
fflush(stdout);
for (count = 0; count <= MAX_CHECK_TIME; count++) {
if (rsrc->force_quit)
return;
all_ports_up = 1;
RTE_ETH_FOREACH_DEV(port_id) {
if (rsrc->force_quit)
return;
if ((port_mask & (1 << port_id)) == 0)
continue;
memset(&link, 0, sizeof(link));
rte_eth_link_get_nowait(port_id, &link);
/* print link status if flag set */
if (print_flag == 1) {
if (link.link_status)
printf(
"Port%d Link Up. Speed %u Mbps - %s\n",
port_id, link.link_speed,
(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
("full-duplex") : ("half-duplex\n"));
else
printf("Port %d Link Down\n", port_id);
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");
}
}
}
/* Print out statistics on packets dropped */
static void
print_stats(struct l2fwd_resources *rsrc)
{
uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
uint32_t port_id;
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' };
/* Clear screen and move to top left */
printf("%s%s", clr, topLeft);
printf("\nPort statistics ====================================");
for (port_id = 0; port_id < RTE_MAX_ETHPORTS; port_id++) {
/* skip disabled ports */
if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
continue;
printf("\nStatistics for port %u ------------------------------"
"\nPackets sent: %24"PRIu64
"\nPackets received: %20"PRIu64
"\nPackets dropped: %21"PRIu64,
port_id,
rsrc->port_stats[port_id].tx,
rsrc->port_stats[port_id].rx,
rsrc->port_stats[port_id].dropped);
total_packets_dropped +=
rsrc->port_stats[port_id].dropped;
total_packets_tx += rsrc->port_stats[port_id].tx;
total_packets_rx += rsrc->port_stats[port_id].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");
}
static void
l2fwd_event_print_stats(struct l2fwd_resources *rsrc)
{
uint64_t prev_tsc = 0, diff_tsc, cur_tsc, timer_tsc = 0;
const uint64_t timer_period = rsrc->timer_period;
while (!rsrc->force_quit) {
/* if timer is enabled */
if (timer_period > 0) {
cur_tsc = rte_rdtsc();
diff_tsc = cur_tsc - prev_tsc;
/* advance the timer */
timer_tsc += diff_tsc;
/* if timer has reached its timeout */
if (unlikely(timer_tsc >= timer_period)) {
print_stats(rsrc);
/* reset the timer */
timer_tsc = 0;
}
prev_tsc = cur_tsc;
}
}
}
static void
signal_handler(int signum)
{
struct l2fwd_resources *rsrc = l2fwd_get_rsrc();
if (signum == SIGINT || signum == SIGTERM) {
printf("\n\nSignal %d received, preparing to exit...\n",
signum);
rsrc->force_quit = true;
}
}
int
main(int argc, char **argv)
{
struct l2fwd_resources *rsrc;
uint16_t nb_ports_available = 0;
uint32_t nb_ports_in_mask = 0;
uint16_t port_id, last_port;
uint32_t nb_mbufs;
uint16_t nb_ports;
int ret;
/* init EAL */
ret = rte_eal_init(argc, argv);
if (ret < 0)
rte_panic("Invalid EAL arguments\n");
argc -= ret;
argv += ret;
rsrc = l2fwd_get_rsrc();
signal(SIGINT, signal_handler);
signal(SIGTERM, signal_handler);
/* parse application arguments (after the EAL ones) */
ret = l2fwd_event_parse_args(argc, argv, rsrc);
if (ret < 0)
rte_panic("Invalid L2FWD arguments\n");
printf("MAC updating %s\n", rsrc->mac_updating ? "enabled" :
"disabled");
nb_ports = rte_eth_dev_count_avail();
if (nb_ports == 0)
rte_panic("No Ethernet ports - bye\n");
/* check port mask to possible port mask */
if (rsrc->enabled_port_mask & ~((1 << nb_ports) - 1))
rte_panic("Invalid portmask; possible (0x%x)\n",
(1 << nb_ports) - 1);
/* reset l2fwd_dst_ports */
for (port_id = 0; port_id < RTE_MAX_ETHPORTS; port_id++)
rsrc->dst_ports[port_id] = 0;
last_port = 0;
/*
* Each logical core is assigned a dedicated TX queue on each port.
*/
RTE_ETH_FOREACH_DEV(port_id) {
/* skip ports that are not enabled */
if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
continue;
if (nb_ports_in_mask % 2) {
rsrc->dst_ports[port_id] = last_port;
rsrc->dst_ports[last_port] = port_id;
} else {
last_port = port_id;
}
nb_ports_in_mask++;
}
if (nb_ports_in_mask % 2) {
printf("Notice: odd number of ports in portmask.\n");
rsrc->dst_ports[last_port] = last_port;
}
nb_mbufs = RTE_MAX(nb_ports * (RTE_TEST_RX_DESC_DEFAULT +
RTE_TEST_TX_DESC_DEFAULT +
MAX_PKT_BURST + rte_lcore_count() *
MEMPOOL_CACHE_SIZE), 8192U);
/* create the mbuf pool */
rsrc->pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool",
nb_mbufs, MEMPOOL_CACHE_SIZE, 0,
RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
if (rsrc->pktmbuf_pool == NULL)
rte_panic("Cannot init mbuf pool\n");
nb_ports_available = l2fwd_event_init_ports(rsrc);
if (!nb_ports_available)
rte_panic("All available ports are disabled. Please set portmask.\n");
l2fwd_poll_resource_setup(rsrc);
/* initialize port stats */
memset(&rsrc->port_stats, 0,
sizeof(struct l2fwd_port_statistics));
/* All settings are done. Now enable eth devices */
RTE_ETH_FOREACH_DEV(port_id) {
/* skip ports that are not enabled */
if ((rsrc->enabled_port_mask &
(1 << port_id)) == 0)
continue;
ret = rte_eth_dev_start(port_id);
if (ret < 0)
rte_panic("rte_eth_dev_start:err=%d, port=%u\n", ret,
port_id);
}
check_all_ports_link_status(rsrc, rsrc->enabled_port_mask);
/* launch per-lcore init on every lcore */
rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, rsrc,
SKIP_MASTER);
l2fwd_event_print_stats(rsrc);
rte_eal_mp_wait_lcore();
RTE_ETH_FOREACH_DEV(port_id) {
if ((rsrc->enabled_port_mask &
(1 << port_id)) == 0)
continue;
printf("Closing port %d...", port_id);
rte_eth_dev_stop(port_id);
rte_eth_dev_close(port_id);
printf(" Done\n");
}
printf("Bye...\n");
return 0;
}

15
examples/l2fwd-event/meson.build Normal file
View File

@ -0,0 +1,15 @@
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(C) 2019 Marvell International Ltd.
#
# meson file, for building this example as part of a main DPDK build.
#
# To build this example as a standalone application with an already-installed
# DPDK instance, use 'make'
deps += 'eventdev'
sources = files(
'main.c',
'l2fwd_poll.c',
'l2fwd_common.c',
)

2
examples/meson.build
View File

@ -20,7 +20,7 @@ all_examples = [
'ip_fragmentation', 'ip_pipeline',
'ip_reassembly', 'ipsec-secgw',
'ipv4_multicast', 'kni',
'l2fwd', 'l2fwd-cat',
'l2fwd', 'l2fwd-cat', 'l2fwd-event',
'l2fwd-crypto', 'l2fwd-jobstats',
'l2fwd-keepalive', 'l3fwd',
'l3fwd-acl', 'l3fwd-power',