--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <ctype.h>
+#include <getopt.h>
+
+#include <rte_alarm.h>
+#include <rte_common.h>
+#include <rte_log.h>
+#include <rte_malloc.h>
+#include <rte_memory.h>
+#include <rte_memcpy.h>
+#include <rte_memzone.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.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_pci.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_spinlock.h>
+
+#include <rte_errno.h>
+#include <rte_jobstats.h>
+#include <rte_timer.h>
+#include <rte_alarm.h>
+
+#define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
+
+#define NB_MBUF 8192
+
+#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 128
+#define RTE_TEST_TX_DESC_DEFAULT 512
+static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
+static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
+
+/* 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;
+
+/* list of enabled ports */
+static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
+
+#define UPDATE_STEP_UP 1
+#define UPDATE_STEP_DOWN 32
+
+static unsigned int l2fwd_rx_queue_per_lcore = 1;
+
+#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];
+ uint64_t next_flush_time[RTE_MAX_ETHPORTS];
+
+ struct rte_timer rx_timers[MAX_RX_QUEUE_PER_LCORE];
+ struct rte_jobstats port_fwd_jobs[MAX_RX_QUEUE_PER_LCORE];
+
+ struct rte_timer flush_timer;
+ struct rte_jobstats flush_job;
+ struct rte_jobstats idle_job;
+ struct rte_jobstats_context jobs_context;
+
+ rte_atomic16_t stats_read_pending;
+ rte_spinlock_t lock;
+} __rte_cache_aligned;
+struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
+
+struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
+
+static const struct rte_eth_conf port_conf = {
+ .rxmode = {
+ .split_hdr_size = 0,
+ .header_split = 0, /**< Header Split disabled */
+ .hw_ip_checksum = 0, /**< IP checksum offload disabled */
+ .hw_vlan_filter = 0, /**< VLAN filtering disabled */
+ .jumbo_frame = 0, /**< Jumbo Frame Support disabled */
+ .hw_strip_crc = 0, /**< CRC stripped by hardware */
+ },
+ .txmode = {
+ .mq_mode = ETH_MQ_TX_NONE,
+ },
+};
+
+struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
+
+/* 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[RTE_MAX_ETHPORTS];
+
+/* 1 day max */
+#define MAX_TIMER_PERIOD 86400
+/* default period is 10 seconds */
+static int64_t timer_period = 10;
+/* default timer frequency */
+static double hz;
+/* BURST_TX_DRAIN_US converted to cycles */
+uint64_t drain_tsc;
+/* Convert cycles to ns */
+static inline double
+cycles_to_ns(uint64_t cycles)
+{
+ double t = cycles;
+
+ t *= (double)NS_PER_S;
+ t /= hz;
+ return t;
+}
+
+static void
+show_lcore_stats(unsigned lcore_id)
+{
+ struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
+ struct rte_jobstats_context *ctx = &qconf->jobs_context;
+ struct rte_jobstats *job;
+ uint8_t i;
+
+ /* LCore statistics. */
+ uint64_t stats_period, loop_count;
+ uint64_t exec, exec_min, exec_max;
+ uint64_t management, management_min, management_max;
+ uint64_t busy, busy_min, busy_max;
+
+ /* Jobs statistics. */
+ const uint8_t port_cnt = qconf->n_rx_port;
+ uint64_t jobs_exec_cnt[port_cnt], jobs_period[port_cnt];
+ uint64_t jobs_exec[port_cnt], jobs_exec_min[port_cnt],
+ jobs_exec_max[port_cnt];
+
+ uint64_t flush_exec_cnt, flush_period;
+ uint64_t flush_exec, flush_exec_min, flush_exec_max;
+
+ uint64_t idle_exec_cnt;
+ uint64_t idle_exec, idle_exec_min, idle_exec_max;
+ uint64_t collection_time = rte_get_timer_cycles();
+
+ /* Ask forwarding thread to give us stats. */
+ rte_atomic16_set(&qconf->stats_read_pending, 1);
+ rte_spinlock_lock(&qconf->lock);
+ rte_atomic16_set(&qconf->stats_read_pending, 0);
+
+ /* Collect context statistics. */
+ stats_period = ctx->state_time - ctx->start_time;
+ loop_count = ctx->loop_cnt;
+
+ exec = ctx->exec_time;
+ exec_min = ctx->min_exec_time;
+ exec_max = ctx->max_exec_time;
+
+ management = ctx->management_time;
+ management_min = ctx->min_management_time;
+ management_max = ctx->max_management_time;
+
+ rte_jobstats_context_reset(ctx);
+
+ for (i = 0; i < port_cnt; i++) {
+ job = &qconf->port_fwd_jobs[i];
+
+ jobs_exec_cnt[i] = job->exec_cnt;
+ jobs_period[i] = job->period;
+
+ jobs_exec[i] = job->exec_time;
+ jobs_exec_min[i] = job->min_exec_time;
+ jobs_exec_max[i] = job->max_exec_time;
+
+ rte_jobstats_reset(job);
+ }
+
+ flush_exec_cnt = qconf->flush_job.exec_cnt;
+ flush_period = qconf->flush_job.period;
+ flush_exec = qconf->flush_job.exec_time;
+ flush_exec_min = qconf->flush_job.min_exec_time;
+ flush_exec_max = qconf->flush_job.max_exec_time;
+ rte_jobstats_reset(&qconf->flush_job);
+
+ idle_exec_cnt = qconf->idle_job.exec_cnt;
+ idle_exec = qconf->idle_job.exec_time;
+ idle_exec_min = qconf->idle_job.min_exec_time;
+ idle_exec_max = qconf->idle_job.max_exec_time;
+ rte_jobstats_reset(&qconf->idle_job);
+
+ rte_spinlock_unlock(&qconf->lock);
+
+ exec -= idle_exec;
+ busy = exec + management;
+ busy_min = exec_min + management_min;
+ busy_max = exec_max + management_max;
+
+
+ collection_time = rte_get_timer_cycles() - collection_time;
+
+#define STAT_FMT "\n%-18s %'14.0f %6.1f%% %'10.0f %'10.0f %'10.0f"
+
+ printf("\n----------------"
+ "\nLCore %3u: statistics (time in ns, collected in %'9.0f)"
+ "\n%-18s %14s %7s %10s %10s %10s "
+ "\n%-18s %'14.0f"
+ "\n%-18s %'14" PRIu64
+ STAT_FMT /* Exec */
+ STAT_FMT /* Management */
+ STAT_FMT /* Busy */
+ STAT_FMT, /* Idle */
+ lcore_id, cycles_to_ns(collection_time),
+ "Stat type", "total", "%total", "avg", "min", "max",
+ "Stats duration:", cycles_to_ns(stats_period),
+ "Loop count:", loop_count,
+ "Exec time",
+ cycles_to_ns(exec), exec * 100.0 / stats_period,
+ cycles_to_ns(loop_count ? exec / loop_count : 0),
+ cycles_to_ns(exec_min),
+ cycles_to_ns(exec_max),
+ "Management time",
+ cycles_to_ns(management), management * 100.0 / stats_period,
+ cycles_to_ns(loop_count ? management / loop_count : 0),
+ cycles_to_ns(management_min),
+ cycles_to_ns(management_max),
+ "Exec + management",
+ cycles_to_ns(busy), busy * 100.0 / stats_period,
+ cycles_to_ns(loop_count ? busy / loop_count : 0),
+ cycles_to_ns(busy_min),
+ cycles_to_ns(busy_max),
+ "Idle (job)",
+ cycles_to_ns(idle_exec), idle_exec * 100.0 / stats_period,
+ cycles_to_ns(idle_exec_cnt ? idle_exec / idle_exec_cnt : 0),
+ cycles_to_ns(idle_exec_min),
+ cycles_to_ns(idle_exec_max));
+
+ for (i = 0; i < qconf->n_rx_port; i++) {
+ job = &qconf->port_fwd_jobs[i];
+ printf("\n\nJob %" PRIu32 ": %-20s "
+ "\n%-18s %'14" PRIu64
+ "\n%-18s %'14.0f"
+ STAT_FMT,
+ i, job->name,
+ "Exec count:", jobs_exec_cnt[i],
+ "Exec period: ", cycles_to_ns(jobs_period[i]),
+ "Exec time",
+ cycles_to_ns(jobs_exec[i]), jobs_exec[i] * 100.0 / stats_period,
+ cycles_to_ns(jobs_exec_cnt[i] ? jobs_exec[i] / jobs_exec_cnt[i]
+ : 0),
+ cycles_to_ns(jobs_exec_min[i]),
+ cycles_to_ns(jobs_exec_max[i]));
+ }
+
+ if (qconf->n_rx_port > 0) {
+ job = &qconf->flush_job;
+ printf("\n\nJob %" PRIu32 ": %-20s "
+ "\n%-18s %'14" PRIu64
+ "\n%-18s %'14.0f"
+ STAT_FMT,
+ i, job->name,
+ "Exec count:", flush_exec_cnt,
+ "Exec period: ", cycles_to_ns(flush_period),
+ "Exec time",
+ cycles_to_ns(flush_exec), flush_exec * 100.0 / stats_period,
+ cycles_to_ns(flush_exec_cnt ? flush_exec / flush_exec_cnt : 0),
+ cycles_to_ns(flush_exec_min),
+ cycles_to_ns(flush_exec_max));
+ }
+}
+
+/* Print out statistics on packets dropped */
+static void
+show_stats_cb(__rte_unused void *param)
+{
+ uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
+ unsigned portid, lcore_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"
+ "\nPort statistics ===================================",
+ clr, topLeft);
+
+ 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
+ "\n====================================================",
+ total_packets_tx,
+ total_packets_rx,
+ total_packets_dropped);
+
+ RTE_LCORE_FOREACH(lcore_id) {
+ if (lcore_queue_conf[lcore_id].n_rx_port > 0)
+ show_lcore_stats(lcore_id);
+ }
+
+ printf("\n====================================================\n");
+ rte_eal_alarm_set(timer_period * US_PER_S, show_stats_cb, NULL);
+}
+
+static void
+l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
+{
+ struct ether_hdr *eth;
+ void *tmp;
+ int sent;
+ unsigned dst_port;
+ 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 = ð->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], ð->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;
+}
+
+static void
+l2fwd_job_update_cb(struct rte_jobstats *job, int64_t result)
+{
+ int64_t err = job->target - result;
+ int64_t histeresis = job->target / 8;
+
+ if (err < -histeresis) {
+ if (job->min_period + UPDATE_STEP_DOWN < job->period)
+ job->period -= UPDATE_STEP_DOWN;
+ } else if (err > histeresis) {
+ if (job->period + UPDATE_STEP_UP < job->max_period)
+ job->period += UPDATE_STEP_UP;
+ }
+}
+
+static void
+l2fwd_fwd_job(__rte_unused struct rte_timer *timer, void *arg)
+{
+ struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+ struct rte_mbuf *m;
+
+ const uint8_t port_idx = (uintptr_t) arg;
+ const unsigned lcore_id = rte_lcore_id();
+ struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
+ struct rte_jobstats *job = &qconf->port_fwd_jobs[port_idx];
+ const uint8_t portid = qconf->rx_port_list[port_idx];
+
+ uint8_t j;
+ uint16_t total_nb_rx;
+
+ rte_jobstats_start(&qconf->jobs_context, job);
+
+ /* Call rx burst 2 times. This allow rte_jobstats logic to see if this
+ * function must be called more frequently. */
+
+ total_nb_rx = rte_eth_rx_burst((uint8_t) portid, 0, pkts_burst,
+ MAX_PKT_BURST);
+
+ for (j = 0; j < total_nb_rx; j++) {
+ m = pkts_burst[j];
+ rte_prefetch0(rte_pktmbuf_mtod(m, void *));
+ l2fwd_simple_forward(m, portid);
+ }
+
+ if (total_nb_rx == MAX_PKT_BURST) {
+ const uint16_t nb_rx = rte_eth_rx_burst((uint8_t) portid, 0, pkts_burst,
+ MAX_PKT_BURST);
+
+ total_nb_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);
+ }
+ }
+
+ port_statistics[portid].rx += total_nb_rx;
+
+ /* Adjust period time in which we are running here. */
+ if (rte_jobstats_finish(job, total_nb_rx) != 0) {
+ rte_timer_reset(&qconf->rx_timers[port_idx], job->period, PERIODICAL,
+ lcore_id, l2fwd_fwd_job, arg);
+ }
+}
+
+static void
+l2fwd_flush_job(__rte_unused struct rte_timer *timer, __rte_unused void *arg)
+{
+ uint64_t now;
+ unsigned lcore_id;
+ struct lcore_queue_conf *qconf;
+ uint8_t portid;
+ unsigned i;
+ uint32_t sent;
+ struct rte_eth_dev_tx_buffer *buffer;
+
+ lcore_id = rte_lcore_id();
+ qconf = &lcore_queue_conf[lcore_id];
+
+ rte_jobstats_start(&qconf->jobs_context, &qconf->flush_job);
+
+ now = rte_get_timer_cycles();
+ lcore_id = rte_lcore_id();
+ qconf = &lcore_queue_conf[lcore_id];
+
+ for (i = 0; i < qconf->n_rx_port; i++) {
+ portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
+
+ if (qconf->next_flush_time[portid] <= now)
+ continue;
+
+ buffer = tx_buffer[portid];
+ sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
+ if (sent)
+ port_statistics[portid].tx += sent;
+
+ qconf->next_flush_time[portid] = rte_get_timer_cycles() + drain_tsc;
+ }
+
+ /* Pass target to indicate that this job is happy of time interwal
+ * in which it was called. */
+ rte_jobstats_finish(&qconf->flush_job, qconf->flush_job.target);
+}
+
+/* main processing loop */
+static void
+l2fwd_main_loop(void)
+{
+ unsigned lcore_id;
+ unsigned i, portid;
+ struct lcore_queue_conf *qconf;
+ uint8_t stats_read_pending = 0;
+ uint8_t need_manage;
+
+ 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);
+ }
+
+ rte_jobstats_init(&qconf->idle_job, "idle", 0, 0, 0, 0);
+
+ for (;;) {
+ rte_spinlock_lock(&qconf->lock);
+
+ do {
+ rte_jobstats_context_start(&qconf->jobs_context);
+
+ /* Do the Idle job:
+ * - Read stats_read_pending flag
+ * - check if some real job need to be executed
+ */
+ rte_jobstats_start(&qconf->jobs_context, &qconf->idle_job);
+
+ uint64_t repeats = 0;
+
+ do {
+ uint8_t i;
+ uint64_t now = rte_get_timer_cycles();
+
+ repeats++;
+ need_manage = qconf->flush_timer.expire < now;
+ /* Check if we was esked to give a stats. */
+ stats_read_pending =
+ rte_atomic16_read(&qconf->stats_read_pending);
+ need_manage |= stats_read_pending;
+
+ for (i = 0; i < qconf->n_rx_port && !need_manage; i++)
+ need_manage = qconf->rx_timers[i].expire < now;
+
+ } while (!need_manage);
+
+ if (likely(repeats != 1))
+ rte_jobstats_finish(&qconf->idle_job, qconf->idle_job.target);
+ else
+ rte_jobstats_abort(&qconf->idle_job);
+
+ rte_timer_manage();
+ rte_jobstats_context_finish(&qconf->jobs_context);
+ } while (likely(stats_read_pending == 0));
+
+ rte_spinlock_unlock(&qconf->lock);
+ rte_pause();
+ }
+}
+
+static int
+l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
+{
+ l2fwd_main_loop();
+ return 0;
+}
+
+/* display usage */
+static void
+l2fwd_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"
+ " -l set system default locale instead of default (\"C\" locale) for thousands separator in stats.",
+ 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}
+ };
+
+ argvopt = argv;
+
+ while ((opt = getopt_long(argc, argvopt, "p:q:T:l",
+ 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;
+ }
+ 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);
+ if (timer_period < 0) {
+ printf("invalid timer period\n");
+ l2fwd_usage(prgname);
+ return -1;
+ }
+ break;
+
+ /* For thousands separator in printf. */
+ case 'l':
+ setlocale(LC_ALL, "");
+ break;
+
+ /* long options */
+ case 0:
+ l2fwd_usage(prgname);
+ return -1;
+
+ default:
+ l2fwd_usage(prgname);
+ return -1;
+ }
+ }
+
+ if (optind >= 0)
+ argv[optind-1] = prgname;
+
+ ret = optind-1;
+ optind = 0; /* 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(uint8_t port_num, uint32_t port_mask)
+{
+#define CHECK_INTERVAL 100 /* 100ms */
+#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
+ uint8_t portid, 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;
+ for (portid = 0; portid < port_num; 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", (uint8_t)portid,
+ (unsigned)link.link_speed,
+ (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
+ ("full-duplex") : ("half-duplex\n"));
+ else
+ printf("Port %d Link Down\n",
+ (uint8_t)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;
+ struct rte_eth_dev_info dev_info;
+ unsigned lcore_id, rx_lcore_id;
+ unsigned nb_ports_in_mask = 0;
+ int ret;
+ char name[RTE_JOBSTATS_NAMESIZE];
+ uint8_t nb_ports;
+ uint8_t nb_ports_available;
+ uint8_t portid, last_port;
+ uint8_t i;
+
+ /* 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");
+
+ rte_timer_subsystem_init();
+
+ /* fetch default timer frequency. */
+ hz = rte_get_timer_hz();
+
+ /* create the mbuf pool */
+ l2fwd_pktmbuf_pool =
+ rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
+ 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
+ if (l2fwd_pktmbuf_pool == NULL)
+ rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
+
+ nb_ports = rte_eth_dev_count();
+ if (nb_ports == 0)
+ rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
+
+ if (nb_ports > RTE_MAX_ETHPORTS)
+ nb_ports = RTE_MAX_ETHPORTS;
+
+ /* 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.
+ */
+ for (portid = 0; portid < nb_ports; 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++;
+
+ rte_eth_dev_info_get(portid, &dev_info);
+ }
+ 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 */
+ for (portid = 0; portid < nb_ports; portid++) {
+ /* skip ports that are not enabled */
+ if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
+ continue;
+
+ /* get the lcore_id for this port */
+ while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
+ 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++;
+ printf("Lcore %u: RX port %u\n", rx_lcore_id, (unsigned) portid);
+ }
+
+ nb_ports_available = nb_ports;
+
+ /* Initialise each port */
+ for (portid = 0; portid < nb_ports; portid++) {
+ /* skip ports that are not enabled */
+ if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
+ printf("Skipping disabled port %u\n", (unsigned) portid);
+ nb_ports_available--;
+ continue;
+ }
+ /* init port */
+ printf("Initializing port %u... ", (unsigned) portid);
+ fflush(stdout);
+ ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
+ ret, (unsigned) portid);
+
+ rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]);
+
+ /* init one RX queue */
+ fflush(stdout);
+ ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
+ rte_eth_dev_socket_id(portid),
+ NULL,
+ l2fwd_pktmbuf_pool);
+ 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);
+ ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
+ rte_eth_dev_socket_id(portid),
+ NULL);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n",
+ ret, (unsigned) portid);
+
+ /* 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(nb_ports, l2fwd_enabled_port_mask);
+
+ drain_tsc = (hz + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
+
+ RTE_LCORE_FOREACH(lcore_id) {
+ qconf = &lcore_queue_conf[lcore_id];
+
+ rte_spinlock_init(&qconf->lock);
+
+ if (rte_jobstats_context_init(&qconf->jobs_context) != 0)
+ rte_panic("Jobs stats context for core %u init failed\n", lcore_id);
+
+ if (qconf->n_rx_port == 0) {
+ RTE_LOG(INFO, L2FWD,
+ "lcore %u: no ports so no jobs stats context initialization\n",
+ lcore_id);
+ continue;
+ }
+ /* Add flush job.
+ * Set fixed period by setting min = max = initial period. Set target to
+ * zero as it is irrelevant for this job. */
+ rte_jobstats_init(&qconf->flush_job, "flush", drain_tsc, drain_tsc,
+ drain_tsc, 0);
+
+ rte_timer_init(&qconf->flush_timer);
+ ret = rte_timer_reset(&qconf->flush_timer, drain_tsc, PERIODICAL,
+ lcore_id, &l2fwd_flush_job, NULL);
+
+ if (ret < 0) {
+ rte_exit(1, "Failed to reset flush job timer for lcore %u: %s",
+ lcore_id, rte_strerror(-ret));
+ }
+
+ for (i = 0; i < qconf->n_rx_port; i++) {
+ struct rte_jobstats *job = &qconf->port_fwd_jobs[i];
+
+ portid = qconf->rx_port_list[i];
+ printf("Setting forward jon for port %u\n", portid);
+
+ snprintf(name, RTE_DIM(name), "port %u fwd", portid);
+ /* Setup forward job.
+ * Set min, max and initial period. Set target to MAX_PKT_BURST as
+ * this is desired optimal RX/TX burst size. */
+ rte_jobstats_init(job, name, 0, drain_tsc, 0, MAX_PKT_BURST);
+ rte_jobstats_set_update_period_function(job, l2fwd_job_update_cb);
+
+ rte_timer_init(&qconf->rx_timers[i]);
+ ret = rte_timer_reset(&qconf->rx_timers[i], 0, PERIODICAL, lcore_id,
+ &l2fwd_fwd_job, (void *)(uintptr_t)i);
+
+ if (ret < 0) {
+ rte_exit(1, "Failed to reset lcore %u port %u job timer: %s",
+ lcore_id, qconf->rx_port_list[i], rte_strerror(-ret));
+ }
+ }
+ }
+
+ if (timer_period)
+ rte_eal_alarm_set(timer_period * MS_PER_S, show_stats_cb, NULL);
+ else
+ RTE_LOG(INFO, L2FWD, "Stats display disabled\n");
+
+ /* launch per-lcore init on every lcore */
+ rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MASTER);
+ RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+ if (rte_eal_wait_lcore(lcore_id) < 0)
+ return -1;
+ }
+
+ return 0;
+}
Code Review / deb_dpdk.git / blobdiff