+++ /dev/null
-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2014 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 <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdint.h>
-#include <unistd.h>
-#include <getopt.h>
-#include <signal.h>
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/queue.h>
-#include <sys/file.h>
-#include <unistd.h>
-#include <limits.h>
-#include <errno.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-
-#include <rte_common.h>
-#include <rte_eal_memconfig.h>
-#include <rte_log.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_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_ivshmem.h>
-
-#include "../include/common.h"
-
-#define MAX_RX_QUEUE_PER_LCORE 16
-#define MAX_TX_QUEUE_PER_PORT 16
-struct lcore_queue_conf {
- unsigned n_rx_port;
- unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
- struct mbuf_table rx_mbufs[RTE_MAX_ETHPORTS];
- struct vm_port_param * port_param[MAX_RX_QUEUE_PER_LCORE];
-} __rte_cache_aligned;
-static struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
-
-/* 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 < ctrl->nb_ports; portid++) {
- /* skip ports that are not enabled */
- printf("\nStatistics for port %u ------------------------------"
- "\nPackets sent: %24"PRIu64
- "\nPackets received: %20"PRIu64
- "\nPackets dropped: %21"PRIu64,
- portid,
- ctrl->vm_ports[portid].stats.tx,
- ctrl->vm_ports[portid].stats.rx,
- ctrl->vm_ports[portid].stats.dropped);
-
- total_packets_dropped += ctrl->vm_ports[portid].stats.dropped;
- total_packets_tx += ctrl->vm_ports[portid].stats.tx;
- total_packets_rx += ctrl->vm_ports[portid].stats.rx;
- }
- printf("\nAggregate statistics ==============================="
- "\nTotal packets sent: %18"PRIu64
- "\nTotal packets received: %14"PRIu64
- "\nTotal packets dropped: %15"PRIu64,
- total_packets_tx,
- total_packets_rx,
- total_packets_dropped);
- printf("\n====================================================\n");
-}
-
-/* display usage */
-static void
-l2fwd_ivshmem_usage(const char *prgname)
-{
- printf("%s [EAL options] -- [-q NQ -T PERIOD]\n"
- " -q NQ: number of queue (=ports) per lcore (default is 1)\n"
- " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
- prgname);
-}
-
-static unsigned int
-l2fwd_ivshmem_parse_nqueue(const char *q_arg)
-{
- char *end = NULL;
- unsigned long n;
-
- /* 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_ivshmem_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_ivshmem_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, "q:p:T:",
- lgopts, &option_index)) != EOF) {
-
- switch (opt) {
-
- /* nqueue */
- case 'q':
- l2fwd_ivshmem_rx_queue_per_lcore = l2fwd_ivshmem_parse_nqueue(optarg);
- if (l2fwd_ivshmem_rx_queue_per_lcore == 0) {
- printf("invalid queue number\n");
- l2fwd_ivshmem_usage(prgname);
- return -1;
- }
- break;
-
- /* timer period */
- case 'T':
- timer_period = l2fwd_ivshmem_parse_timer_period(optarg) * 1000 * TIMER_MILLISECOND;
- if (timer_period < 0) {
- printf("invalid timer period\n");
- l2fwd_ivshmem_usage(prgname);
- return -1;
- }
- break;
-
- /* long options */
- case 0:
- l2fwd_ivshmem_usage(prgname);
- return -1;
-
- default:
- l2fwd_ivshmem_usage(prgname);
- return -1;
- }
- }
-
- if (optind >= 0)
- argv[optind-1] = prgname;
-
- ret = optind-1;
- optind = 0; /* reset getopt lib */
- return ret;
-}
-
-/*
- * this loop is getting packets from RX rings of each port, and puts them
- * into TX rings of destination ports.
- */
-static void
-fwd_loop(void)
-{
-
- struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
- struct rte_mbuf **m_table;
- struct rte_mbuf *m;
- struct rte_ring *rx, *tx;
- unsigned lcore_id, len;
- uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
- unsigned i, j, portid, nb_rx;
- struct lcore_queue_conf *qconf;
- struct ether_hdr *eth;
- void *tmp;
-
- prev_tsc = 0;
- timer_tsc = 0;
-
- lcore_id = rte_lcore_id();
- qconf = &lcore_queue_conf[lcore_id];
-
- if (qconf->n_rx_port == 0) {
- RTE_LOG(INFO, L2FWD_IVSHMEM, "lcore %u has nothing to do\n", lcore_id);
- return;
- }
-
- RTE_LOG(INFO, L2FWD_IVSHMEM, "entering main loop on lcore %u\n", lcore_id);
-
- for (i = 0; i < qconf->n_rx_port; i++) {
- portid = qconf->rx_port_list[i];
- RTE_LOG(INFO, L2FWD_IVSHMEM, " -- lcoreid=%u portid=%u\n", lcore_id,
- portid);
- }
-
- while (ctrl->state == STATE_FWD) {
- cur_tsc = rte_rdtsc();
-
- diff_tsc = cur_tsc - prev_tsc;
-
- /*
- * Read packet from RX queues and send it to TX queues
- */
- for (i = 0; i < qconf->n_rx_port; i++) {
-
- portid = qconf->rx_port_list[i];
-
- len = qconf->rx_mbufs[portid].len;
-
- rx = ctrl->vm_ports[portid].rx_ring;
- tx = ctrl->vm_ports[portid].dst->tx_ring;
-
- m_table = qconf->rx_mbufs[portid].m_table;
-
- /* if we have something in the queue, try and transmit it down */
- if (len != 0) {
-
- /* if we succeed in sending the packets down, mark queue as free */
- if (rte_ring_enqueue_bulk(tx, (void**) m_table, len) == 0) {
- ctrl->vm_ports[portid].stats.tx += len;
- qconf->rx_mbufs[portid].len = 0;
- len = 0;
- }
- }
-
- nb_rx = rte_ring_count(rx);
-
- nb_rx = RTE_MIN(nb_rx, (unsigned) MAX_PKT_BURST);
-
- if (nb_rx == 0)
- continue;
-
- /* if we can get packets into the m_table */
- if (nb_rx < (RTE_DIM(qconf->rx_mbufs[portid].m_table) - len)) {
-
- /* this situation cannot exist, so if we fail to dequeue, that
- * means something went horribly wrong, hence the failure. */
- if (rte_ring_dequeue_bulk(rx, (void**) pkts_burst, nb_rx) < 0) {
- ctrl->state = STATE_FAIL;
- return;
- }
-
- ctrl->vm_ports[portid].stats.rx += nb_rx;
-
- /* put packets into the queue */
- for (j = 0; j < nb_rx; j++) {
- m = pkts_burst[j];
-
- rte_prefetch0(rte_pktmbuf_mtod(m, void *));
-
- m_table[len + j] = m;
-
- 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)portid << 40);
-
- /* src addr */
- ether_addr_copy(&ctrl->vm_ports[portid].dst->ethaddr,
- ð->s_addr);
- }
- qconf->rx_mbufs[portid].len += nb_rx;
-
- }
-
- }
-
- /* 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)) {
-
- /* do this only on master core */
- if (lcore_id == rte_get_master_lcore()) {
- print_stats();
- /* reset the timer */
- timer_tsc = 0;
- }
- }
- }
-
- prev_tsc = cur_tsc;
- }
-}
-
-static int
-l2fwd_ivshmem_launch_one_lcore(__attribute__((unused)) void *dummy)
-{
- fwd_loop();
- return 0;
-}
-
-int
-main(int argc, char **argv)
-{
- struct lcore_queue_conf *qconf;
- const struct rte_memzone * mz;
- int ret;
- uint8_t portid;
- unsigned rx_lcore_id, lcore_id;
-
- /* 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_ivshmem_parse_args(argc, argv);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "Invalid l2fwd-ivshmem arguments\n");
-
- /* find control structure */
- mz = rte_memzone_lookup(CTRL_MZ_NAME);
- if (mz == NULL)
- rte_exit(EXIT_FAILURE, "Cannot find control memzone\n");
-
- ctrl = (struct ivshmem_ctrl*) mz->addr;
-
- /* lock the ctrl so that we don't have conflicts with anything else */
- rte_spinlock_lock(&ctrl->lock);
-
- if (ctrl->state == STATE_FWD)
- rte_exit(EXIT_FAILURE, "Forwarding already started!\n");
-
- rx_lcore_id = 0;
- qconf = NULL;
-
- /* Initialize the port/queue configuration of each logical core */
- for (portid = 0; portid < ctrl->nb_ports; portid++) {
-
- /* 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_ivshmem_rx_queue_per_lcore) {
- rx_lcore_id++;
- if (rx_lcore_id >= RTE_MAX_LCORE)
- rte_exit(EXIT_FAILURE, "Not enough cores\n");
- }
-
- if (qconf != &lcore_queue_conf[rx_lcore_id])
- /* 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->port_param[qconf->n_rx_port] = &ctrl->vm_ports[portid];
- qconf->n_rx_port++;
-
- printf("Lcore %u: RX port %u\n", rx_lcore_id, (unsigned) portid);
- }
-
- sigsetup();
-
- /* indicate that we are ready to forward */
- ctrl->state = STATE_FWD;
-
- /* unlock */
- rte_spinlock_unlock(&ctrl->lock);
-
- /* launch per-lcore init on every lcore */
- rte_eal_mp_remote_launch(l2fwd_ivshmem_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