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authorGage Eads <gage.eads@intel.com>2018-07-30 10:10:00 -0500
committerThomas Monjalon <thomas@monjalon.net>2018-08-05 21:42:40 +0200
commit3504db92b50414b10c4aa41d9020146eeb25078c (patch)
tree89fb7db93ae58e7d0d566b0dd6c230c8da8837ab /examples
parentbc57bef7a9f38df3cd249e44192f9a108eb2c673 (diff)
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examples/multi_process: remove l2fwd fork example
l2fwd_fork relies on a multiprocess model that DPDK does not support (calling rte_eal_init() before fork()), in particular in light of recent EAL changes like the multiproess communication channel. This example can mislead users into thinking this is a supported multiprocess model; hence, this commit removes this example and the corresponding user guide documentation as well. This patch was made following this mailing list discussion: http://mails.dpdk.org/archives/dev/2018-July/108106.html Signed-off-by: Gage Eads <gage.eads@intel.com>
Diffstat (limited to 'examples')
-rw-r--r--examples/multi_process/Makefile1
-rw-r--r--examples/multi_process/l2fwd_fork/Makefile22
-rw-r--r--examples/multi_process/l2fwd_fork/flib.c280
-rw-r--r--examples/multi_process/l2fwd_fork/flib.h120
-rw-r--r--examples/multi_process/l2fwd_fork/main.c1258
5 files changed, 0 insertions, 1681 deletions
diff --git a/examples/multi_process/Makefile b/examples/multi_process/Makefile
index 5961d28..a6708b7 100644
--- a/examples/multi_process/Makefile
+++ b/examples/multi_process/Makefile
@@ -13,6 +13,5 @@ include $(RTE_SDK)/mk/rte.vars.mk
DIRS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += client_server_mp
DIRS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += simple_mp
DIRS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += symmetric_mp
-DIRS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += l2fwd_fork
include $(RTE_SDK)/mk/rte.extsubdir.mk
diff --git a/examples/multi_process/l2fwd_fork/Makefile b/examples/multi_process/l2fwd_fork/Makefile
deleted file mode 100644
index b65582e..0000000
--- a/examples/multi_process/l2fwd_fork/Makefile
+++ /dev/null
@@ -1,22 +0,0 @@
-# SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2010-2014 Intel Corporation
-
-# binary name
-APP = l2fwd-fork
-
-# all source are stored in SRCS-y
-SRCS-y := main.c flib.c
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, can be overridden by command line or environment
-RTE_TARGET ?= x86_64-native-linuxapp-gcc
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-
-include $(RTE_SDK)/mk/rte.extapp.mk
diff --git a/examples/multi_process/l2fwd_fork/flib.c b/examples/multi_process/l2fwd_fork/flib.c
deleted file mode 100644
index 52c6152..0000000
--- a/examples/multi_process/l2fwd_fork/flib.c
+++ /dev/null
@@ -1,280 +0,0 @@
-/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2010-2014 Intel Corporation
- */
-#include <unistd.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 <sys/wait.h>
-#include <sys/prctl.h>
-#include <netinet/in.h>
-#include <setjmp.h>
-#include <stdarg.h>
-#include <ctype.h>
-#include <errno.h>
-#include <getopt.h>
-#include <dirent.h>
-#include <signal.h>
-
-#include <rte_common.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_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_mempool.h>
-#include <rte_mbuf.h>
-#include <rte_string_fns.h>
-
-#include "flib.h"
-
-#define SIG_PARENT_EXIT SIGUSR1
-
-struct lcore_stat {
- pid_t pid; /**< pthread identifier */
- lcore_function_t *f; /**< function to call */
- void *arg; /**< argument of function */
- slave_exit_notify *cb_fn;
-} __rte_cache_aligned;
-
-
-static struct lcore_stat *core_cfg;
-static uint16_t *lcore_cfg = NULL;
-
-/* signal handler to be notified after parent leaves */
-static void
-sighand_parent_exit(int sig)
-{
- printf("lcore = %u : Find parent leaves, sig=%d\n", rte_lcore_id(),
- sig);
- printf("Child leaving\n");
- exit(0);
-
- return;
-}
-
-/**
- * Real function entrance ran in slave process
- **/
-static int
-slave_proc_func(void)
-{
- struct rte_config *config;
- unsigned slave_id = rte_lcore_id();
- struct lcore_stat *cfg = &core_cfg[slave_id];
-
- if (prctl(PR_SET_PDEATHSIG, SIG_PARENT_EXIT, 0, 0, 0, 0) != 0)
- printf("Warning: Slave can't register for being notified in"
- "case master process exited\n");
- else {
- struct sigaction act;
- memset(&act, 0 , sizeof(act));
- act.sa_handler = sighand_parent_exit;
- if (sigaction(SIG_PARENT_EXIT, &act, NULL) != 0)
- printf("Fail to register signal handler:%d\n", SIG_PARENT_EXIT);
- }
-
- /* Set slave process to SECONDARY to avoid operation like dev_start/stop etc */
- config = rte_eal_get_configuration();
- if (NULL == config)
- printf("Warning:Can't get rte_config\n");
- else
- config->process_type = RTE_PROC_SECONDARY;
-
- printf("Core %u is ready (pid=%d)\n", slave_id, (int)cfg->pid);
-
- exit(cfg->f(cfg->arg));
-}
-
-/**
- * function entrance ran in master thread, which will spawn slave process and wait until
- * specific slave exited.
- **/
-static int
-lcore_func(void *arg __attribute__((unused)))
-{
- unsigned slave_id = rte_lcore_id();
- struct lcore_stat *cfg = &core_cfg[slave_id];
- int pid, stat;
-
- if (rte_get_master_lcore() == slave_id)
- return cfg->f(cfg->arg);
-
- /* fork a slave process */
- pid = fork();
-
- if (pid == -1) {
- printf("Failed to fork\n");
- return -1;
- } else if (pid == 0) /* child */
- return slave_proc_func();
- else { /* parent */
- cfg->pid = pid;
-
- waitpid(pid, &stat, 0);
-
- cfg->pid = 0;
- cfg->f = NULL;
- cfg->arg = NULL;
- /* Notify slave's exit if applicable */
- if(cfg->cb_fn)
- cfg->cb_fn(slave_id, stat);
- return stat;
- }
-}
-
-static int
-lcore_id_init(void)
-{
- int i;
- /* Setup lcore ID allocation map */
- lcore_cfg = rte_zmalloc("LCORE_ID_MAP",
- sizeof(uint16_t) * RTE_MAX_LCORE,
- RTE_CACHE_LINE_SIZE);
-
- if(lcore_cfg == NULL)
- rte_panic("Failed to malloc\n");
-
- for (i = 0; i < RTE_MAX_LCORE; i++) {
- if (rte_lcore_is_enabled(i))
- lcore_cfg[i] = 1;
- }
- return 0;
-}
-
-int
-flib_assign_lcore_id(void)
-{
- unsigned i;
- int ret;
-
- /**
- * thread assigned a lcore id previously, or a slave thread. But still have
- * a bug here: If the core mask includes core 0, and that core call this
- * function, it still can get a new lcore id.
- **/
- if (rte_lcore_id() != 0)
- return -1;
-
- do {
- /* Find a lcore id not used yet, avoid to use lcore ID 0 */
- for (i = 1; i < RTE_MAX_LCORE; i++) {
- if (lcore_cfg[i] == 0)
- break;
- }
- if (i == RTE_MAX_LCORE)
- return -1;
-
- /* Assign new lcore id to this thread */
-
- ret = rte_atomic16_cmpset(&lcore_cfg[i], 0, 1);
- } while (unlikely(ret == 0));
-
- RTE_PER_LCORE(_lcore_id) = i;
- return i;
-}
-
-void
-flib_free_lcore_id(unsigned lcore_id)
-{
- /* id is not valid or belongs to pinned core id */
- if (lcore_id >= RTE_MAX_LCORE || lcore_id == 0 ||
- rte_lcore_is_enabled(lcore_id))
- return;
-
- lcore_cfg[lcore_id] = 0;
-}
-
-int
-flib_register_slave_exit_notify(unsigned slave_id,
- slave_exit_notify *cb)
-{
- if (cb == NULL)
- return -EFAULT;
-
- if (!rte_lcore_is_enabled(slave_id))
- return -ENOENT;
-
- core_cfg[slave_id].cb_fn = cb;
-
- return 0;
-}
-
-enum slave_stat
-flib_query_slave_status(unsigned slave_id)
-{
- if (!rte_lcore_is_enabled(slave_id))
- return ST_FREEZE;
- /* pid only be set when slave process spawned */
- if (core_cfg[slave_id].pid != 0)
- return ST_RUN;
- else
- return ST_IDLE;
-}
-
-int
-flib_remote_launch(lcore_function_t *f,
- void *arg, unsigned slave_id)
-{
- if (f == NULL)
- return -1;
-
- if (!rte_lcore_is_enabled(slave_id))
- return -1;
-
- /* Wait until specific lcore state change to WAIT */
- rte_eal_wait_lcore(slave_id);
-
- core_cfg[slave_id].f = f;
- core_cfg[slave_id].arg = arg;
-
- return rte_eal_remote_launch(lcore_func, NULL, slave_id);
-}
-
-int
-flib_mp_remote_launch(lcore_function_t *f, void *arg,
- enum rte_rmt_call_master_t call_master)
-{
- int i;
-
- RTE_LCORE_FOREACH_SLAVE(i) {
- core_cfg[i].arg = arg;
- core_cfg[i].f = f;
- }
-
- return rte_eal_mp_remote_launch(lcore_func, NULL, call_master);
-}
-
-int
-flib_init(void)
-{
- if ((core_cfg = rte_zmalloc("core_cfg",
- sizeof(struct lcore_stat) * RTE_MAX_LCORE,
- RTE_CACHE_LINE_SIZE)) == NULL ) {
- printf("rte_zmalloc failed\n");
- return -1;
- }
-
- if (lcore_id_init() != 0) {
- printf("lcore_id_init failed\n");
- return -1;
- }
-
- return 0;
-}
diff --git a/examples/multi_process/l2fwd_fork/flib.h b/examples/multi_process/l2fwd_fork/flib.h
deleted file mode 100644
index 8bc13a1..0000000
--- a/examples/multi_process/l2fwd_fork/flib.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2010-2014 Intel Corporation
- */
-
-#ifndef __FLIB_H
-#define __FLIB_H
-
-/* callback function pointer when specific slave leaves */
-typedef void (slave_exit_notify)(unsigned slaveid, int stat);
-
-enum slave_stat{
- ST_FREEZE = 1,
- ST_IDLE,
- ST_RUN,
- ST_ZOMBIE, /* Not implemented yet */
-};
-
-/**
- * Initialize the fork lib.
- *
- * @return
- * - 0 : fork lib initialized successfully
- * - -1 : fork lib initialized failed
- */
-int flib_init(void);
-
-/**
- * Check that every SLAVE lcores are in WAIT state, then call
- * flib_remote_launch() for all of them. If call_master is true
- * (set to CALL_MASTER), also call the function on the master lcore.
- *
- * @param f:
- * function pointer need to run
- * @param arg:
- * argument for f to carry
- * @param call_master
- * - SKIP_MASTER : only launch function on slave lcores
- * - CALL_MASTER : launch function on master and slave lcores
- * @return
- * - 0 : function execute successfully
- * - -1 : function execute failed
- */
-int flib_mp_remote_launch(lcore_function_t *f,
- void *arg, enum rte_rmt_call_master_t call_master);
-
-/**
- * Send a message to a slave lcore identified by slave_id to call a
- * function f with argument arg.
- *
- * @param f:
- * function pointer need to run
- * @param arg:
- * argument for f to carry
- * @param slave_id
- * slave lcore id to run on
- * @return
- * - 0 : function execute successfully
- * - -1 : function execute failed
- */
-int flib_remote_launch(lcore_function_t *f,
- void *arg, unsigned slave_id);
-
-/**
- * Query the running stat for specific slave, wont' work in with master id
- *
- * @param slave_id:
- * lcore id which should not be master id
- * @return
- * - ST_FREEZE : lcore is not in enabled core mask
- * - ST_IDLE : lcore is idle
- * - ST_RUN : lcore is running something
- */
-enum slave_stat
-flib_query_slave_status(unsigned slave_id);
-
-/**
- * Register a callback function to be notified in case specific slave exit.
- *
- * @param slave_id:
- * lcore id which should not be master id
- * @param cb:
- * callback pointer to register
- * @return
- * - 0 : function execute successfully
- * - -EFAULT : argument error
- * - -ENOENT : slave_id not correct
- */
-int flib_register_slave_exit_notify(unsigned slave_id,
- slave_exit_notify *cb);
-
-/**
- * Assign a lcore ID to non-slave thread. Non-slave thread refers to thread that
- * not created by function rte_eal_remote_launch or rte_eal_mp_remote_launch.
- * These threads can either bind lcore or float among different lcores.
- * This lcore ID will be unique in multi-thread or multi-process DPDK running
- * environment, then it can benefit from using the cache mechanism provided in
- * mempool library.
- * After calling successfully, use rte_lcore_id() to get the assigned lcore ID, but
- * other lcore funtions can't guarantee to work correctly.
- *
- * @return
- * - -1 : can't assign a lcore id with 3 possibilities.
- * - it's not non-slave thread.
- * - it had assign a lcore id previously
- * - the lcore id is running out.
- * - > 0 : the assigned lcore id.
- */
-int flib_assign_lcore_id(void);
-
-/**
- * Free the lcore_id that assigned in flib_assign_lcore_id().
- * call it in case non-slave thread is leaving or left.
- *
- * @param lcore_id
- * The identifier of the lcore, which MUST be between 1 and
- * RTE_MAX_LCORE-1.
- */
-void flib_free_lcore_id(unsigned lcore_id);
-
-#endif /* __FLIB_H */
diff --git a/examples/multi_process/l2fwd_fork/main.c b/examples/multi_process/l2fwd_fork/main.c
deleted file mode 100644
index 80335c8..0000000
--- a/examples/multi_process/l2fwd_fork/main.c
+++ /dev/null
@@ -1,1258 +0,0 @@
-/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2010-2016 Intel Corporation
- */
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdint.h>
-#include <sched.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 <rte_common.h>
-#include <rte_log.h>
-#include <rte_memory.h>
-#include <rte_memcpy.h>
-#include <rte_eal.h>
-#include <rte_launch.h>
-#include <rte_atomic.h>
-#include <rte_spinlock.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_ring.h>
-#include <rte_mempool.h>
-#include <rte_mbuf.h>
-#include <rte_malloc.h>
-
-#include "flib.h"
-
-#define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
-#define MBUF_NAME "mbuf_pool_%d"
-#define MBUF_DATA_SIZE RTE_MBUF_DEFAULT_BUF_SIZE
-#define NB_MBUF 8192
-#define RING_MASTER_NAME "l2fwd_ring_m2s_"
-#define RING_SLAVE_NAME "l2fwd_ring_s2m_"
-#define MAX_NAME_LEN 32
-/* RECREATE flag indicate needs initialize resource and launch slave_core again */
-#define SLAVE_RECREATE_FLAG 0x1
-/* RESTART flag indicate needs restart port and send START command again */
-#define SLAVE_RESTART_FLAG 0x2
-#define INVALID_MAPPING_ID ((unsigned)LCORE_ID_ANY)
-/* Maximum message buffer per slave */
-#define NB_CORE_MSGBUF 32
-enum l2fwd_cmd{
- CMD_START,
- CMD_STOP,
-};
-
-#define MAX_PKT_BURST 32
-#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
-
-/*
- * Configurable number of RX/TX ring descriptors
- */
-#define RTE_TEST_RX_DESC_DEFAULT 1024
-#define RTE_TEST_TX_DESC_DEFAULT 1024
-static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
-static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
-
-/* ethernet addresses of ports */
-static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
-
-/* mask of enabled ports */
-static uint32_t l2fwd_enabled_port_mask = 0;
-
-/* list of enabled ports */
-static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
-
-static unsigned int l2fwd_rx_queue_per_lcore = 1;
-
-struct mbuf_table {
- unsigned len;
- struct rte_mbuf *m_table[MAX_PKT_BURST];
-};
-
-#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];
-} __rte_cache_aligned;
-struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
-
-struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
-
-struct lcore_resource_struct {
- int enabled; /* Only set in case this lcore involved into packet forwarding */
- int flags; /* Set only slave need to restart or recreate */
- unsigned lcore_id; /* lcore ID */
- unsigned pair_id; /* dependency lcore ID on port */
- char ring_name[2][MAX_NAME_LEN];
- /* ring[0] for master send cmd, slave read */
- /* ring[1] for slave send ack, master read */
- struct rte_ring *ring[2];
- int port_num; /* Total port numbers */
- /* Port id for that lcore to receive packets */
- uint16_t port[RTE_MAX_ETHPORTS];
-}__attribute__((packed)) __rte_cache_aligned;
-
-static struct lcore_resource_struct lcore_resource[RTE_MAX_LCORE];
-static struct rte_mempool *message_pool;
-static rte_spinlock_t res_lock = RTE_SPINLOCK_INITIALIZER;
-/* use floating processes */
-static int float_proc = 0;
-/* Save original cpu affinity */
-struct cpu_aff_arg{
- cpu_set_t set;
- size_t size;
-}cpu_aff;
-
-static const struct rte_eth_conf port_conf = {
- .rxmode = {
- .split_hdr_size = 0,
- .offloads = DEV_RX_OFFLOAD_CRC_STRIP,
- },
- .txmode = {
- .mq_mode = ETH_MQ_TX_NONE,
- },
-};
-
-static struct rte_mempool * l2fwd_pktmbuf_pool[RTE_MAX_ETHPORTS];
-
-/* Per-port statistics struct */
-struct l2fwd_port_statistics {
- uint64_t tx;
- uint64_t rx;
- uint64_t dropped;
-} __rte_cache_aligned;
-struct l2fwd_port_statistics *port_statistics;
-/**
- * pointer to lcore ID mapping array, used to return lcore id in case slave
- * process exited unexpectedly, use only floating process option applied
- **/
-unsigned *mapping_id;
-
-/* A tsc-based timer responsible for triggering statistics printout */
-#define TIMER_MILLISECOND 2000000ULL /* around 1ms at 2 Ghz */
-#define MAX_TIMER_PERIOD 86400 /* 1 day max */
-static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* default period is 10 seconds */
-
-static int l2fwd_launch_one_lcore(void *dummy);
-
-/* Print out statistics on packets dropped */
-static void
-print_stats(void)
-{
- uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
- unsigned 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' };
-
- /* Clear screen and move to top left */
- printf("%s%s", clr, topLeft);
-
- printf("\nPort statistics ====================================");
-
- for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
- /* skip disabled ports */
- 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");
-}
-
-static int
-clear_cpu_affinity(void)
-{
- int s;
-
- s = sched_setaffinity(0, cpu_aff.size, &cpu_aff.set);
- if (s != 0) {
- printf("sched_setaffinity failed:%s\n", strerror(errno));
- return -1;
- }
-
- return 0;
-}
-
-static int
-get_cpu_affinity(void)
-{
- int s;
-
- cpu_aff.size = sizeof(cpu_set_t);
- CPU_ZERO(&cpu_aff.set);
-
- s = sched_getaffinity(0, cpu_aff.size, &cpu_aff.set);
- if (s != 0) {
- printf("sched_getaffinity failed:%s\n", strerror(errno));
- return -1;
- }
-
- return 0;
-}
-
-/**
- * This fnciton demonstrates the approach to create ring in first instance
- * or re-attach an existed ring in later instance.
- **/
-static struct rte_ring *
-create_ring(const char *name, unsigned count,
- int socket_id,unsigned flags)
-{
- struct rte_ring *ring;
-
- if (name == NULL)
- return NULL;
-
- /* If already create, just attached it */
- if (likely((ring = rte_ring_lookup(name)) != NULL))
- return ring;
-
- /* First call it, create one */
- return rte_ring_create(name, count, socket_id, flags);
-}
-
-/* Malloc with rte_malloc on structures that shared by master and slave */
-static int
-l2fwd_malloc_shared_struct(void)
-{
- port_statistics = rte_zmalloc("port_stat",
- sizeof(struct l2fwd_port_statistics) * RTE_MAX_ETHPORTS,
- 0);
- if (port_statistics == NULL)
- return -1;
-
- /* allocate mapping_id array */
- if (float_proc) {
- int i;
- mapping_id = rte_malloc("mapping_id", sizeof(unsigned) * RTE_MAX_LCORE,
- 0);
-
- if (mapping_id == NULL)
- return -1;
-
- for (i = 0 ;i < RTE_MAX_LCORE; i++)
- mapping_id[i] = INVALID_MAPPING_ID;
- }
- return 0;
-}
-
-/* Create ring which used for communicate among master and slave */
-static int
-create_ms_ring(unsigned slaveid)
-{
- unsigned flag = RING_F_SP_ENQ | RING_F_SC_DEQ;
- struct lcore_resource_struct *res = &lcore_resource[slaveid];
- unsigned socketid = rte_socket_id();
-
- /* Always assume create ring on master socket_id */
- /* Default only create a ring size 32 */
- snprintf(res->ring_name[0], MAX_NAME_LEN, "%s%u",
- RING_MASTER_NAME, slaveid);
- if ((res->ring[0] = create_ring(res->ring_name[0], NB_CORE_MSGBUF,
- socketid, flag)) == NULL) {
- printf("Create m2s ring %s failed\n", res->ring_name[0]);
- return -1;
- }
-
- snprintf(res->ring_name[1], MAX_NAME_LEN, "%s%u",
- RING_SLAVE_NAME, slaveid);
- if ((res->ring[1] = create_ring(res->ring_name[1], NB_CORE_MSGBUF,
- socketid, flag)) == NULL) {
- printf("Create s2m ring %s failed\n", res->ring_name[1]);
- return -1;
- }
-
- return 0;
-}
-
-/* send command to pair in paired master and slave ring */
-static inline int
-sendcmd(unsigned slaveid, enum l2fwd_cmd cmd, int is_master)
-{
- struct lcore_resource_struct *res = &lcore_resource[slaveid];
- void *msg;
- int fd = !is_master;
-
- /* Only check master, it must be enabled and running if it is slave */
- if (is_master && !res->enabled)
- return -1;
-
- if (res->ring[fd] == NULL)
- return -1;
-
- if (rte_mempool_get(message_pool, &msg) < 0) {
- printf("Error to get message buffer\n");
- return -1;
- }
-
- *(enum l2fwd_cmd *)msg = cmd;
-
- if (rte_ring_enqueue(res->ring[fd], msg) != 0) {
- printf("Enqueue error\n");
- rte_mempool_put(message_pool, msg);
- return -1;
- }
-
- return 0;
-}
-
-/* Get command from pair in paired master and slave ring */
-static inline int
-getcmd(unsigned slaveid, enum l2fwd_cmd *cmd, int is_master)
-{
- struct lcore_resource_struct *res = &lcore_resource[slaveid];
- void *msg;
- int fd = !!is_master;
- int ret;
- /* Only check master, it must be enabled and running if it is slave */
- if (is_master && (!res->enabled))
- return -1;
-
- if (res->ring[fd] == NULL)
- return -1;
-
- ret = rte_ring_dequeue(res->ring[fd], &msg);
-
- if (ret == 0) {
- *cmd = *(enum l2fwd_cmd *)msg;
- rte_mempool_put(message_pool, msg);
- }
- return ret;
-}
-
-/* Master send command to slave and wait until ack received or error met */
-static int
-master_sendcmd_with_ack(unsigned slaveid, enum l2fwd_cmd cmd)
-{
- enum l2fwd_cmd ack_cmd;
- int ret = -1;
-
- if (sendcmd(slaveid, cmd, 1) != 0)
- rte_exit(EXIT_FAILURE, "Failed to send message\n");
-
- /* Get ack */
- while (1) {
- ret = getcmd(slaveid, &ack_cmd, 1);
- if (ret == 0 && cmd == ack_cmd)
- break;
-
- /* If slave not running yet, return an error */
- if (flib_query_slave_status(slaveid) != ST_RUN) {
- ret = -ENOENT;
- break;
- }
- }
-
- return ret;
-}
-
-/* restart all port that assigned to that slave lcore */
-static int
-reset_slave_all_ports(unsigned slaveid)
-{
- struct lcore_resource_struct *slave = &lcore_resource[slaveid];
- int i, ret = 0;
-
- /* stop/start port */
- for (i = 0; i < slave->port_num; i++) {
- char buf_name[RTE_MEMPOOL_NAMESIZE];
- struct rte_mempool *pool;
- printf("Stop port :%d\n", slave->port[i]);
- rte_eth_dev_stop(slave->port[i]);
- snprintf(buf_name, RTE_MEMPOOL_NAMESIZE, MBUF_NAME, slave->port[i]);
- pool = rte_mempool_lookup(buf_name);
- if (pool)
- printf("Port %d mempool free object is %u(%u)\n", slave->port[i],
- rte_mempool_avail_count(pool),
- (unsigned int)NB_MBUF);
- else
- printf("Can't find mempool %s\n", buf_name);
-
- printf("Start port :%d\n", slave->port[i]);
- ret = rte_eth_dev_start(slave->port[i]);
- if (ret != 0)
- break;
- }
- return ret;
-}
-
-static int
-reset_shared_structures(unsigned slaveid)
-{
- int ret;
- /* Only port are shared resource here */
- ret = reset_slave_all_ports(slaveid);
-
- return ret;
-}
-
-/**
- * Call this function to re-create resource that needed for slave process that
- * exited in last instance
- **/
-static int
-init_slave_res(unsigned slaveid)
-{
- struct lcore_resource_struct *slave = &lcore_resource[slaveid];
- enum l2fwd_cmd cmd;
-
- if (!slave->enabled) {
- printf("Something wrong with lcore=%u enabled=%d\n",slaveid,
- slave->enabled);
- return -1;
- }
-
- /* Initialize ring */
- if (create_ms_ring(slaveid) != 0)
- rte_exit(EXIT_FAILURE, "failed to create ring for slave %u\n",
- slaveid);
-
- /* drain un-read buffer if have */
- while (getcmd(slaveid, &cmd, 1) == 0);
- while (getcmd(slaveid, &cmd, 0) == 0);
-
- return 0;
-}
-
-static int
-recreate_one_slave(unsigned slaveid)
-{
- int ret = 0;
- /* Re-initialize resource for stalled slave */
- if ((ret = init_slave_res(slaveid)) != 0) {
- printf("Init slave=%u failed\n", slaveid);
- return ret;
- }
-
- if ((ret = flib_remote_launch(l2fwd_launch_one_lcore, NULL, slaveid))
- != 0)
- printf("Launch slave %u failed\n", slaveid);
-
- return ret;
-}
-
-/**
- * remapping resource belong to slave_id to new lcore that gets from flib_assign_lcore_id(),
- * used only floating process option applied.
- *
- * @param slaveid
- * original lcore_id that apply for remapping
- */
-static void
-remapping_slave_resource(unsigned slaveid, unsigned map_id)
-{
-
- /* remapping lcore_resource */
- memcpy(&lcore_resource[map_id], &lcore_resource[slaveid],
- sizeof(struct lcore_resource_struct));
-
- /* remapping lcore_queue_conf */
- memcpy(&lcore_queue_conf[map_id], &lcore_queue_conf[slaveid],
- sizeof(struct lcore_queue_conf));
-}
-
-static int
-reset_pair(unsigned slaveid, unsigned pairid)
-{
- int ret;
- if ((ret = reset_shared_structures(slaveid)) != 0)
- goto back;
-
- if((ret = reset_shared_structures(pairid)) != 0)
- goto back;
-
- if (float_proc) {
- unsigned map_id = mapping_id[slaveid];
-
- if (map_id != INVALID_MAPPING_ID) {
- printf("%u return mapping id %u\n", slaveid, map_id);
- flib_free_lcore_id(map_id);
- mapping_id[slaveid] = INVALID_MAPPING_ID;
- }
-
- map_id = mapping_id[pairid];
- if (map_id != INVALID_MAPPING_ID) {
- printf("%u return mapping id %u\n", pairid, map_id);
- flib_free_lcore_id(map_id);
- mapping_id[pairid] = INVALID_MAPPING_ID;
- }
- }
-
- if((ret = recreate_one_slave(slaveid)) != 0)
- goto back;
-
- ret = recreate_one_slave(pairid);
-
-back:
- return ret;
-}
-
-static void
-slave_exit_cb(unsigned slaveid, __attribute__((unused))int stat)
-{
- struct lcore_resource_struct *slave = &lcore_resource[slaveid];
-
- printf("Get slave %u leave info\n", slaveid);
- if (!slave->enabled) {
- printf("Lcore=%u not registered for it's exit\n", slaveid);
- return;
- }
- rte_spinlock_lock(&res_lock);
-
- /* Change the state and wait master to start them */
- slave->flags = SLAVE_RECREATE_FLAG;
-
- rte_spinlock_unlock(&res_lock);
-}
-
-static void
-l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
-{
- struct ether_hdr *eth;
- void *tmp;
- unsigned dst_port;
- int sent;
- struct rte_eth_dev_tx_buffer *buffer;
-
- dst_port = l2fwd_dst_ports[portid];
- eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
-
- /* 02:00:00:00:00:xx */
- tmp = &eth->d_addr.addr_bytes[0];
- *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
-
- /* src addr */
- ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
-
- buffer = tx_buffer[dst_port];
- sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
- if (sent)
- port_statistics[dst_port].tx += sent;
-}
-
-/* main processing loop */
-static void
-l2fwd_main_loop(void)
-{
- struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
- struct rte_mbuf *m;
- int sent;
- unsigned lcore_id;
- uint64_t prev_tsc, diff_tsc, cur_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;
- struct rte_eth_dev_tx_buffer *buffer;
-
- prev_tsc = 0;
-
- lcore_id = rte_lcore_id();
-
- 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);
- }
-
- while (1) {
- enum l2fwd_cmd cmd;
- cur_tsc = rte_rdtsc();
-
- if (unlikely(getcmd(lcore_id, &cmd, 0) == 0)) {
- sendcmd(lcore_id, cmd, 0);
-
- /* If get stop command, stop forwarding and exit */
- if (cmd == CMD_STOP) {
- return;
- }
- }
-
- /*
- * 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++) {
-
- portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
- buffer = tx_buffer[portid];
-
- sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
- if (sent)
- port_statistics[portid].tx += sent;
-
- }
-
- prev_tsc = cur_tsc;
- }
-
- /*
- * Read packet from RX queues
- */
- for (i = 0; i < qconf->n_rx_port; i++) {
-
- portid = qconf->rx_port_list[i];
- nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
- pkts_burst, MAX_PKT_BURST);
-
- port_statistics[portid].rx += nb_rx;
-
- for (j = 0; j < nb_rx; j++) {
- m = pkts_burst[j];
- rte_prefetch0(rte_pktmbuf_mtod(m, void *));
- l2fwd_simple_forward(m, portid);
- }
- }
- }
-}
-
-static int
-l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
-{
- unsigned lcore_id = rte_lcore_id();
-
- if (float_proc) {
- unsigned flcore_id;
-
- /* Change it to floating process, also change it's lcore_id */
- clear_cpu_affinity();
- RTE_PER_LCORE(_lcore_id) = 0;
- /* Get a lcore_id */
- if (flib_assign_lcore_id() < 0 ) {
- printf("flib_assign_lcore_id failed\n");
- return -1;
- }
- flcore_id = rte_lcore_id();
- /* Set mapping id, so master can return it after slave exited */
- mapping_id[lcore_id] = flcore_id;
- printf("Org lcore_id = %u, cur lcore_id = %u\n",
- lcore_id, flcore_id);
- remapping_slave_resource(lcore_id, flcore_id);
- }
-
- l2fwd_main_loop();
-
- /* return lcore_id before return */
- if (float_proc) {
- flib_free_lcore_id(rte_lcore_id());
- mapping_id[lcore_id] = INVALID_MAPPING_ID;
- }
- return 0;
-}
-
-/* display usage */
-static void
-l2fwd_usage(const char *prgname)
-{
- printf("%s [EAL options] -- -p PORTMASK -s COREMASK [-q NQ] -f\n"
- " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
- " -q NQ: number of queue (=ports) per lcore (default is 1)\n"
- " -f use floating process which won't bind to any core to run\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;
-
- /* 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_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_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;
-}
-
-/* Parse the argument given in the command line of the application */
-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}
- };
- int has_pmask = 0;
-
- argvopt = argv;
-
- while ((opt = getopt_long(argc, argvopt, "p:q:T:f",
- lgopts, &option_index)) != EOF) {
-
- switch (opt) {
- /* portmask */
- 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;
- }
- has_pmask = 1;
- break;
-
- /* nqueue */
- 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;
-
- /* timer period */
- case 'T':
- timer_period = l2fwd_parse_timer_period(optarg) * 1000 * TIMER_MILLISECOND;
- if (timer_period < 0) {
- printf("invalid timer period\n");
- l2fwd_usage(prgname);
- return -1;
- }
- break;
-
- /* use floating process */
- case 'f':
- float_proc = 1;
- break;
-
- /* long options */
- case 0:
- l2fwd_usage(prgname);
- return -1;
-
- default:
- l2fwd_usage(prgname);
- return -1;
- }
- }
-
- if (optind >= 0)
- argv[optind-1] = prgname;
-
- if (!has_pmask) {
- l2fwd_usage(prgname);
- return -1;
- }
- ret = optind-1;
- optind = 1; /* reset getopt lib */
- return ret;
-}
-
-/* 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;
-
- printf("\nChecking link status");
- fflush(stdout);
- for (count = 0; count <= MAX_CHECK_TIME; count++) {
- all_ports_up = 1;
- RTE_ETH_FOREACH_DEV(portid) {
- if ((port_mask & (1 << portid)) == 0)
- continue;
- memset(&link, 0, sizeof(link));
- rte_eth_link_get_nowait(portid, &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",
- portid, link.link_speed,
- (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
- ("full-duplex") : ("half-duplex\n"));
- else
- printf("Port %d Link Down\n", portid);
- 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");
- }
- }
-}
-
-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 rx_lcore_id;
- unsigned nb_ports_in_mask = 0;
- unsigned i;
- uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
-
- /* Save cpu_affinity first, restore it in case it's floating process option */
- if (get_cpu_affinity() != 0)
- rte_exit(EXIT_FAILURE, "get_cpu_affinity error\n");
-
- /* Also tries to set cpu affinity to detect whether it will fail in child process */
- if(clear_cpu_affinity() != 0)
- rte_exit(EXIT_FAILURE, "clear_cpu_affinity error\n");
-
- /* init EAL */
- ret = rte_eal_init(argc, argv);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
- argc -= ret;
- argv += ret;
-
- /* parse application arguments (after the EAL ones) */
- ret = l2fwd_parse_args(argc, argv);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
-
- /*flib init */
- if (flib_init() != 0)
- rte_exit(EXIT_FAILURE, "flib init error");
-
- /**
- * Allocated structures that slave lcore would change. For those that slaves are
- * read only, needn't use malloc to share and global or static variables is ok since
- * slave inherit all the knowledge that master initialized.
- **/
- if (l2fwd_malloc_shared_struct() != 0)
- rte_exit(EXIT_FAILURE, "malloc mem failed\n");
-
- /* Initialize lcore_resource structures */
- memset(lcore_resource, 0, sizeof(lcore_resource));
- for (i = 0; i < RTE_MAX_LCORE; i++)
- lcore_resource[i].lcore_id = i;
-
- nb_ports = rte_eth_dev_count_avail();
- if (nb_ports == 0)
- rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
-
- /* create the mbuf pool */
- RTE_ETH_FOREACH_DEV(portid) {
- /* skip ports that are not enabled */
- if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
- continue;
- char buf_name[RTE_MEMPOOL_NAMESIZE];
- snprintf(buf_name, RTE_MEMPOOL_NAMESIZE, MBUF_NAME, portid);
- l2fwd_pktmbuf_pool[portid] =
- rte_pktmbuf_pool_create(buf_name, NB_MBUF, 32,
- 0, MBUF_DATA_SIZE, rte_socket_id());
- if (l2fwd_pktmbuf_pool[portid] == NULL)
- rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
-
- printf("Create mbuf %s\n", buf_name);
- }
-
- /* reset l2fwd_dst_ports */
- for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
- l2fwd_dst_ports[portid] = 0;
- last_port = 0;
-
- /*
- * Each logical core is assigned a dedicated TX queue on each port.
- */
- RTE_ETH_FOREACH_DEV(portid) {
- /* skip ports that are not enabled */
- 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 = 0;
- qconf = NULL;
-
- /* Initialize the port/queue configuration of each logical core */
- RTE_ETH_FOREACH_DEV(portid) {
- struct lcore_resource_struct *res;
- /* skip ports that are not enabled */
- if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
- continue;
-
- /* get the lcore_id for this port */
- /* skip master lcore */
- while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
- rte_get_master_lcore() == rx_lcore_id ||
- 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])
- /* Assigned a new logical core in the loop above. */
- qconf = &lcore_queue_conf[rx_lcore_id];
-
- qconf->rx_port_list[qconf->n_rx_port] = portid;
- qconf->n_rx_port++;
-
- /* Save the port resource info into lcore_resource strucutres */
- res = &lcore_resource[rx_lcore_id];
- res->enabled = 1;
- res->port[res->port_num++] = portid;
-
- printf("Lcore %u: RX port %u\n", rx_lcore_id, (unsigned) portid);
- }
-
- /* Initialise each port */
- RTE_ETH_FOREACH_DEV(portid) {
- struct rte_eth_rxconf rxq_conf;
- struct rte_eth_txconf txq_conf;
- struct rte_eth_conf local_port_conf = port_conf;
- struct rte_eth_dev_info dev_info;
-
- /* skip ports that are not enabled */
- if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
- printf("Skipping disabled port %u\n", (unsigned) portid);
- continue;
- }
- nb_ports_available++;
- /* init port */
- printf("Initializing port %u... ", (unsigned) portid);
- fflush(stdout);
- rte_eth_dev_info_get(portid, &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(portid, 1, 1, &local_port_conf);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
- ret, (unsigned) portid);
-
- ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
- &nb_txd);
- if (ret < 0)
- rte_exit(EXIT_FAILURE,
- "rte_eth_dev_adjust_nb_rx_tx_desc: err=%d, port=%u\n",
- ret, (unsigned) portid);
-
- rte_eth_macaddr_get(portid,&l2fwd_ports_eth_addr[portid]);
-
- /* 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(portid, 0, nb_rxd,
- rte_eth_dev_socket_id(portid),
- &rxq_conf,
- l2fwd_pktmbuf_pool[portid]);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n",
- ret, (unsigned) portid);
-
- /* 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(portid, 0, nb_txd,
- rte_eth_dev_socket_id(portid),
- &txq_conf);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n",
- ret, (unsigned) portid);
-
- /* Initialize TX buffers */
- tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
- RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
- rte_eth_dev_socket_id(portid));
- if (tx_buffer[portid] == NULL)
- rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
- (unsigned) portid);
-
- rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
-
- ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
- rte_eth_tx_buffer_count_callback,
- &port_statistics[portid].dropped);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "Cannot set error callback for "
- "tx buffer on port %u\n", (unsigned) portid);
-
- /* Start device */
- ret = rte_eth_dev_start(portid);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n",
- ret, (unsigned) portid);
-
- printf("done: \n");
-
- rte_eth_promiscuous_enable(portid);
-
- printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
- (unsigned) portid,
- l2fwd_ports_eth_addr[portid].addr_bytes[0],
- l2fwd_ports_eth_addr[portid].addr_bytes[1],
- l2fwd_ports_eth_addr[portid].addr_bytes[2],
- l2fwd_ports_eth_addr[portid].addr_bytes[3],
- l2fwd_ports_eth_addr[portid].addr_bytes[4],
- l2fwd_ports_eth_addr[portid].addr_bytes[5]);
-
- /* initialize port stats */
- //memset(&port_statistics, 0, sizeof(port_statistics));
- }
-
- if (!nb_ports_available) {
- rte_exit(EXIT_FAILURE,
- "All available ports are disabled. Please set portmask.\n");
- }
-
- check_all_ports_link_status(l2fwd_enabled_port_mask);
-
- /* Record pair lcore */
- /**
- * Since l2fwd example would create pair between different neighbour port, that's
- * port 0 receive and forward to port 1, the same to port 1, these 2 ports will have
- * dependency. If one port stopped working (killed, for example), the port need to
- * be stopped/started again. During the time, another port need to wait until stop/start
- * procedure completed. So, record the pair relationship for those lcores working
- * on ports.
- **/
- RTE_ETH_FOREACH_DEV(portid) {
- uint32_t pair_port;
- unsigned lcore = 0, pair_lcore = 0;
- unsigned j, find_lcore, find_pair_lcore;
- /* skip ports that are not enabled */
- if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
- continue;
-
- /* Find pair ports' lcores */
- find_lcore = find_pair_lcore = 0;
- pair_port = l2fwd_dst_ports[portid];
- for (i = 0; i < RTE_MAX_LCORE; i++) {
- if (!rte_lcore_is_enabled(i))
- continue;
- for (j = 0; j < lcore_queue_conf[i].n_rx_port;j++) {
- if (lcore_queue_conf[i].rx_port_list[j] == portid) {
- lcore = i;
- find_lcore = 1;
- break;
- }
- if (lcore_queue_conf[i].rx_port_list[j] == pair_port) {
- pair_lcore = i;
- find_pair_lcore = 1;
- break;
- }
- }
- if (find_lcore && find_pair_lcore)
- break;
- }
- if (!find_lcore || !find_pair_lcore)
- rte_exit(EXIT_FAILURE, "Not find port=%d pair\n", portid);
-
- printf("lcore %u and %u paired\n", lcore, pair_lcore);
- lcore_resource[lcore].pair_id = pair_lcore;
- lcore_resource[pair_lcore].pair_id = lcore;
- }
-
- /* Create message buffer for all master and slave */
- message_pool = rte_mempool_create("ms_msg_pool",
- NB_CORE_MSGBUF * RTE_MAX_LCORE,
- sizeof(enum l2fwd_cmd), NB_CORE_MSGBUF / 2,
- 0, NULL, NULL, NULL, NULL, rte_socket_id(), 0);
-
- if (message_pool == NULL)
- rte_exit(EXIT_FAILURE, "Create msg mempool failed\n");
-
- /* Create ring for each master and slave pair, also register cb when slave leaves */
- for (i = 0; i < RTE_MAX_LCORE; i++) {
- /**
- * Only create ring and register slave_exit cb in case that core involved into
- * packet forwarding
- **/
- if (lcore_resource[i].enabled) {
- /* Create ring for master and slave communication */
- ret = create_ms_ring(i);
- if (ret != 0)
- rte_exit(EXIT_FAILURE, "Create ring for lcore=%u failed",
- i);
-
- if (flib_register_slave_exit_notify(i,
- slave_exit_cb) != 0)
- rte_exit(EXIT_FAILURE,
- "Register master_trace_slave_exit failed");
- }
- }
-
- /* launch per-lcore init on every lcore except master */
- flib_mp_remote_launch(l2fwd_launch_one_lcore, NULL, SKIP_MASTER);
-
- /* print statistics 10 second */
- prev_tsc = cur_tsc = rte_rdtsc();
- timer_tsc = 0;
- while (1) {
- sleep(1);
- cur_tsc = rte_rdtsc();
- diff_tsc = cur_tsc - prev_tsc;
- /* if timer is enabled */
- if (timer_period > 0) {
-
- /* advance the timer */
- timer_tsc += diff_tsc;
-
- /* if timer has reached its timeout */
- if (unlikely(timer_tsc >= (uint64_t) timer_period)) {
-
- print_stats();
- /* reset the timer */
- timer_tsc = 0;
- }
- }
-
- prev_tsc = cur_tsc;
-
- /* Check any slave need restart or recreate */
- rte_spinlock_lock(&res_lock);
- for (i = 0; i < RTE_MAX_LCORE; i++) {
- struct lcore_resource_struct *res = &lcore_resource[i];
- struct lcore_resource_struct *pair = &lcore_resource[res->pair_id];
-
- /* If find slave exited, try to reset pair */
- if (res->enabled && res->flags && pair->enabled) {
- if (!pair->flags) {
- master_sendcmd_with_ack(pair->lcore_id, CMD_STOP);
- rte_spinlock_unlock(&res_lock);
- sleep(1);
- rte_spinlock_lock(&res_lock);
- if (pair->flags)
- continue;
- }
- if (reset_pair(res->lcore_id, pair->lcore_id) != 0)
- rte_exit(EXIT_FAILURE, "failed to reset slave");
- res->flags = 0;
- pair->flags = 0;
- }
- }
- rte_spinlock_unlock(&res_lock);
- }
-
-}