diff options
Diffstat (limited to 'examples/l2fwd-ivshmem/guest/guest.c')
| -rw-r--r-- | examples/l2fwd-ivshmem/guest/guest.c | 452 |
1 files changed, 0 insertions, 452 deletions
diff --git a/examples/l2fwd-ivshmem/guest/guest.c b/examples/l2fwd-ivshmem/guest/guest.c deleted file mode 100644 index 7c49521b..00000000 --- a/examples/l2fwd-ivshmem/guest/guest.c +++ /dev/null @@ -1,452 +0,0 @@ -/*- - * 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; -} |