DIRS-y += exception_path
DIRS-y += helloworld
DIRS-y += ip_reassembly
-DIRS-$(CONFIG_RTE_MBUF_SCATTER_GATHER) += ipv4_frag
+DIRS-$(CONFIG_RTE_MBUF_SCATTER_GATHER) += ip_fragmentation
DIRS-$(CONFIG_RTE_MBUF_SCATTER_GATHER) += ipv4_multicast
DIRS-$(CONFIG_RTE_LIBRTE_KNI) += kni
DIRS-y += l2fwd
--- /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.
+#
+
+ifeq ($(RTE_SDK),)
+$(error "Please define RTE_SDK environment variable")
+endif
+
+# Default target, can be overriden by command line or environment
+RTE_TARGET ?= x86_64-native-linuxapp-gcc
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+ifneq ($(CONFIG_RTE_MBUF_SCATTER_GATHER),y)
+$(error This application requires RTE_MBUF_SCATTER_GATHER to be enabled)
+endif
+
+# binary name
+APP = ip_fragmentation
+
+# all source are stored in SRCS-y
+SRCS-y := main.c
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+
+# workaround for a gcc bug with noreturn attribute
+# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
+ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
+CFLAGS_main.o += -Wno-return-type
+endif
+
+include $(RTE_SDK)/mk/rte.extapp.mk
--- /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 <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#include <string.h>
+#include <sys/queue.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <getopt.h>
+
+#include <rte_common.h>
+#include <rte_byteorder.h>
+#include <rte_log.h>
+#include <rte_memory.h>
+#include <rte_memcpy.h>
+#include <rte_memzone.h>
+#include <rte_tailq.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_lpm.h>
+#include <rte_ip.h>
+
+#include "rte_ip_frag.h"
+#include "main.h"
+
+/*
+ * Default byte size for the IPv4 Maximum Transfer Unit (MTU).
+ * This value includes the size of IPv4 header.
+ */
+#define IPV4_MTU_DEFAULT ETHER_MTU
+
+/*
+ * Default payload in bytes for the IPv4 packet.
+ */
+#define IPV4_DEFAULT_PAYLOAD (IPV4_MTU_DEFAULT - sizeof(struct ipv4_hdr))
+
+#define RTE_LOGTYPE_L3FWD RTE_LOGTYPE_USER1
+
+#define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
+
+/* allow max jumbo frame 9.5 KB */
+#define JUMBO_FRAME_MAX_SIZE 0x2600
+
+#define ROUNDUP_DIV(a, b) (((a) + (b) - 1) / (b))
+
+/*
+ * Max number of fragments per packet expected.
+ */
+#define MAX_PACKET_FRAG ROUNDUP_DIV(JUMBO_FRAME_MAX_SIZE, IPV4_DEFAULT_PAYLOAD)
+
+#define NB_MBUF 8192
+
+/*
+ * RX and TX Prefetch, Host, and Write-back threshold values should be
+ * carefully set for optimal performance. Consult the network
+ * controller's datasheet and supporting DPDK documentation for guidance
+ * on how these parameters should be set.
+ */
+#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
+#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
+#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
+
+/*
+ * These default values are optimized for use with the Intel(R) 82599 10 GbE
+ * Controller and the DPDK ixgbe PMD. Consider using other values for other
+ * network controllers and/or network drivers.
+ */
+#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
+#define TX_HTHRESH 0 /**< Default values of TX host threshold reg. */
+#define TX_WTHRESH 0 /**< Default values of TX write-back threshold reg. */
+
+#define MAX_PKT_BURST 32
+#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
+
+/* Configure how many packets ahead to prefetch, when reading packets */
+#define PREFETCH_OFFSET 3
+
+/*
+ * 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 ports_eth_addr[RTE_MAX_ETHPORTS];
+static struct ether_addr remote_eth_addr =
+ {{0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff}};
+
+/* mask of enabled ports */
+static int enabled_port_mask = 0;
+
+static int rx_queue_per_lcore = 1;
+
+#define MBUF_TABLE_SIZE (2 * MAX(MAX_PKT_BURST, MAX_PACKET_FRAG))
+
+struct mbuf_table {
+ uint16_t len;
+ struct rte_mbuf *m_table[MBUF_TABLE_SIZE];
+};
+
+#define MAX_RX_QUEUE_PER_LCORE 16
+#define MAX_TX_QUEUE_PER_PORT 16
+struct lcore_queue_conf {
+ uint16_t n_rx_queue;
+ uint8_t rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
+ uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
+ struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
+
+} __rte_cache_aligned;
+struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
+
+static const struct rte_eth_conf port_conf = {
+ .rxmode = {
+ .max_rx_pkt_len = JUMBO_FRAME_MAX_SIZE,
+ .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 = 1, /**< Jumbo Frame Support enabled */
+ .hw_strip_crc = 0, /**< CRC stripped by hardware */
+ },
+ .txmode = {
+ .mq_mode = ETH_MQ_TX_NONE,
+ },
+};
+
+static const struct rte_eth_rxconf rx_conf = {
+ .rx_thresh = {
+ .pthresh = RX_PTHRESH,
+ .hthresh = RX_HTHRESH,
+ .wthresh = RX_WTHRESH,
+ },
+};
+
+static const struct rte_eth_txconf tx_conf = {
+ .tx_thresh = {
+ .pthresh = TX_PTHRESH,
+ .hthresh = TX_HTHRESH,
+ .wthresh = TX_WTHRESH,
+ },
+ .tx_free_thresh = 0, /* Use PMD default values */
+ .tx_rs_thresh = 0, /* Use PMD default values */
+};
+
+struct rte_mempool *pool_direct = NULL, *pool_indirect = NULL;
+
+struct l3fwd_route {
+ uint32_t ip;
+ uint8_t depth;
+ uint8_t if_out;
+};
+
+struct l3fwd_route l3fwd_route_array[] = {
+ {IPv4(100,10,0,0), 16, 2},
+ {IPv4(100,20,0,0), 16, 2},
+ {IPv4(100,30,0,0), 16, 0},
+ {IPv4(100,40,0,0), 16, 0},
+};
+
+#define L3FWD_NUM_ROUTES \
+ (sizeof(l3fwd_route_array) / sizeof(l3fwd_route_array[0]))
+
+#define L3FWD_LPM_MAX_RULES 1024
+
+struct rte_lpm *l3fwd_lpm = NULL;
+
+/* Send burst of packets on an output interface */
+static inline int
+send_burst(struct lcore_queue_conf *qconf, uint16_t n, uint8_t port)
+{
+ struct rte_mbuf **m_table;
+ int ret;
+ uint16_t queueid;
+
+ queueid = qconf->tx_queue_id[port];
+ m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
+
+ ret = rte_eth_tx_burst(port, queueid, m_table, n);
+ if (unlikely(ret < n)) {
+ do {
+ rte_pktmbuf_free(m_table[ret]);
+ } while (++ret < n);
+ }
+
+ return 0;
+}
+
+static inline void
+l3fwd_simple_forward(struct rte_mbuf *m, uint8_t port_in)
+{
+ struct lcore_queue_conf *qconf;
+ struct ipv4_hdr *ip_hdr;
+ uint32_t i, len, lcore_id, ip_dst;
+ uint8_t next_hop, port_out;
+ int32_t len2;
+
+ lcore_id = rte_lcore_id();
+ qconf = &lcore_queue_conf[lcore_id];
+
+ /* Remove the Ethernet header and trailer from the input packet */
+ rte_pktmbuf_adj(m, (uint16_t)sizeof(struct ether_hdr));
+
+ /* Read the lookup key (i.e. ip_dst) from the input packet */
+ ip_hdr = rte_pktmbuf_mtod(m, struct ipv4_hdr *);
+ ip_dst = rte_be_to_cpu_32(ip_hdr->dst_addr);
+
+ /* Find destination port */
+ if (rte_lpm_lookup(l3fwd_lpm, ip_dst, &next_hop) == 0 &&
+ (enabled_port_mask & 1 << next_hop) != 0)
+ port_out = next_hop;
+ else
+ port_out = port_in;
+
+ /* Build transmission burst */
+ len = qconf->tx_mbufs[port_out].len;
+
+ /* if we don't need to do any fragmentation */
+ if (likely (IPV4_MTU_DEFAULT >= m->pkt.pkt_len)) {
+ qconf->tx_mbufs[port_out].m_table[len] = m;
+ len2 = 1;
+ } else {
+ len2 = rte_ipv4_fragment_packet(m,
+ &qconf->tx_mbufs[port_out].m_table[len],
+ (uint16_t)(MBUF_TABLE_SIZE - len),
+ IPV4_MTU_DEFAULT,
+ pool_direct, pool_indirect);
+
+ /* Free input packet */
+ rte_pktmbuf_free(m);
+
+ /* If we fail to fragment the packet */
+ if (unlikely (len2 < 0))
+ return;
+ }
+
+ for (i = len; i < len + len2; i ++) {
+ m = qconf->tx_mbufs[port_out].m_table[i];
+ struct ether_hdr *eth_hdr = (struct ether_hdr *)
+ rte_pktmbuf_prepend(m, (uint16_t)sizeof(struct ether_hdr));
+ if (eth_hdr == NULL) {
+ rte_panic("No headroom in mbuf.\n");
+ }
+
+ m->pkt.vlan_macip.f.l2_len = sizeof(struct ether_hdr);
+
+ ether_addr_copy(&remote_eth_addr, ð_hdr->d_addr);
+ ether_addr_copy(&ports_eth_addr[port_out], ð_hdr->s_addr);
+ eth_hdr->ether_type = rte_be_to_cpu_16(ETHER_TYPE_IPv4);
+ }
+
+ len += len2;
+
+ if (likely(len < MAX_PKT_BURST)) {
+ qconf->tx_mbufs[port_out].len = (uint16_t)len;
+ return;
+ }
+
+ /* Transmit packets */
+ send_burst(qconf, (uint16_t)len, port_out);
+ qconf->tx_mbufs[port_out].len = 0;
+}
+
+/* main processing loop */
+static int
+main_loop(__attribute__((unused)) void *dummy)
+{
+ struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+ unsigned lcore_id;
+ uint64_t prev_tsc, diff_tsc, cur_tsc;
+ int i, j, nb_rx;
+ uint8_t portid;
+ 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;
+
+ prev_tsc = 0;
+
+ lcore_id = rte_lcore_id();
+ qconf = &lcore_queue_conf[lcore_id];
+
+ if (qconf->n_rx_queue == 0) {
+ RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
+ return 0;
+ }
+
+ RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
+
+ for (i = 0; i < qconf->n_rx_queue; i++) {
+
+ portid = qconf->rx_queue_list[i];
+ RTE_LOG(INFO, L3FWD, " -- lcoreid=%u portid=%d\n", lcore_id,
+ (int) portid);
+ }
+
+ while (1) {
+
+ cur_tsc = rte_rdtsc();
+
+ /*
+ * TX burst queue drain
+ */
+ diff_tsc = cur_tsc - prev_tsc;
+ if (unlikely(diff_tsc > drain_tsc)) {
+
+ /*
+ * This could be optimized (use queueid instead of
+ * portid), but it is not called so often
+ */
+ for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
+ if (qconf->tx_mbufs[portid].len == 0)
+ continue;
+ send_burst(&lcore_queue_conf[lcore_id],
+ qconf->tx_mbufs[portid].len,
+ portid);
+ qconf->tx_mbufs[portid].len = 0;
+ }
+
+ prev_tsc = cur_tsc;
+ }
+
+ /*
+ * Read packet from RX queues
+ */
+ for (i = 0; i < qconf->n_rx_queue; i++) {
+
+ portid = qconf->rx_queue_list[i];
+ nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst,
+ MAX_PKT_BURST);
+
+ /* Prefetch first packets */
+ for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
+ rte_prefetch0(rte_pktmbuf_mtod(
+ pkts_burst[j], void *));
+ }
+
+ /* Prefetch and forward already prefetched packets */
+ for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
+ rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
+ j + PREFETCH_OFFSET], void *));
+ l3fwd_simple_forward(pkts_burst[j], portid);
+ }
+
+ /* Forward remaining prefetched packets */
+ for (; j < nb_rx; j++) {
+ l3fwd_simple_forward(pkts_burst[j], portid);
+ }
+ }
+ }
+}
+
+/* display usage */
+static void
+print_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",
+ prgname);
+}
+
+static int
+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 int
+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 -1;
+ if (n == 0)
+ return -1;
+ if (n >= MAX_RX_QUEUE_PER_LCORE)
+ return -1;
+
+ return n;
+}
+
+/* Parse the argument given in the command line of the application */
+static int
+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:",
+ lgopts, &option_index)) != EOF) {
+
+ switch (opt) {
+ /* portmask */
+ case 'p':
+ enabled_port_mask = parse_portmask(optarg);
+ if (enabled_port_mask < 0) {
+ printf("invalid portmask\n");
+ print_usage(prgname);
+ return -1;
+ }
+ break;
+
+ /* nqueue */
+ case 'q':
+ rx_queue_per_lcore = parse_nqueue(optarg);
+ if (rx_queue_per_lcore < 0) {
+ printf("invalid queue number\n");
+ print_usage(prgname);
+ return -1;
+ }
+ break;
+
+ /* long options */
+ case 0:
+ print_usage(prgname);
+ return -1;
+
+ default:
+ print_usage(prgname);
+ return -1;
+ }
+ }
+
+ if (enabled_port_mask == 0) {
+ printf("portmask not specified\n");
+ print_usage(prgname);
+ return -1;
+ }
+
+ if (optind >= 0)
+ argv[optind-1] = prgname;
+
+ ret = optind-1;
+ optind = 0; /* reset getopt lib */
+ return ret;
+}
+
+static void
+print_ethaddr(const char *name, struct ether_addr *eth_addr)
+{
+ printf("%s%02X:%02X:%02X:%02X:%02X:%02X", name,
+ eth_addr->addr_bytes[0],
+ eth_addr->addr_bytes[1],
+ eth_addr->addr_bytes[2],
+ eth_addr->addr_bytes[3],
+ eth_addr->addr_bytes[4],
+ eth_addr->addr_bytes[5]);
+}
+
+/* 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 == 0) {
+ 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;
+ unsigned nb_ports, i;
+ uint16_t queueid = 0;
+ unsigned lcore_id = 0, rx_lcore_id = 0;
+ uint32_t n_tx_queue, nb_lcores;
+ uint8_t portid;
+
+ /* init EAL */
+ ret = rte_eal_init(argc, argv);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "rte_eal_init failed");
+ argc -= ret;
+ argv += ret;
+
+ /* parse application arguments (after the EAL ones) */
+ ret = parse_args(argc, argv);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Invalid arguments");
+
+ /* create the mbuf pools */
+ pool_direct =
+ rte_mempool_create("pool_direct", NB_MBUF,
+ MBUF_SIZE, 32,
+ sizeof(struct rte_pktmbuf_pool_private),
+ rte_pktmbuf_pool_init, NULL,
+ rte_pktmbuf_init, NULL,
+ rte_socket_id(), 0);
+ if (pool_direct == NULL)
+ rte_panic("Cannot init direct mbuf pool\n");
+
+ pool_indirect =
+ rte_mempool_create("pool_indirect", NB_MBUF,
+ sizeof(struct rte_mbuf), 32,
+ 0,
+ NULL, NULL,
+ rte_pktmbuf_init, NULL,
+ rte_socket_id(), 0);
+ if (pool_indirect == NULL)
+ rte_panic("Cannot init indirect mbuf pool\n");
+
+ if (rte_eal_pci_probe() < 0)
+ rte_panic("Cannot probe PCI\n");
+
+ nb_ports = rte_eth_dev_count();
+ if (nb_ports > RTE_MAX_ETHPORTS)
+ nb_ports = RTE_MAX_ETHPORTS;
+
+ nb_lcores = rte_lcore_count();
+
+ /* initialize all ports */
+ for (portid = 0; portid < nb_ports; portid++) {
+ /* skip ports that are not enabled */
+ if ((enabled_port_mask & (1 << portid)) == 0) {
+ printf("Skipping disabled port %d\n", portid);
+ continue;
+ }
+
+ qconf = &lcore_queue_conf[rx_lcore_id];
+
+ /* get the lcore_id for this port */
+ while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
+ qconf->n_rx_queue == (unsigned)rx_queue_per_lcore) {
+
+ rx_lcore_id ++;
+ if (rx_lcore_id >= RTE_MAX_LCORE)
+ rte_exit(EXIT_FAILURE, "Not enough cores\n");
+
+ qconf = &lcore_queue_conf[rx_lcore_id];
+ }
+ qconf->rx_queue_list[qconf->n_rx_queue] = portid;
+ qconf->n_rx_queue++;
+
+ /* init port */
+ printf("Initializing port %d on lcore %u... ", portid,
+ rx_lcore_id);
+ fflush(stdout);
+
+ n_tx_queue = nb_lcores;
+ if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
+ n_tx_queue = MAX_TX_QUEUE_PER_PORT;
+ ret = rte_eth_dev_configure(portid, 1, (uint16_t)n_tx_queue,
+ &port_conf);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Cannot configure device: "
+ "err=%d, port=%d\n",
+ ret, portid);
+
+ rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
+ print_ethaddr(" Address:", &ports_eth_addr[portid]);
+ printf(", ");
+
+ /* init one RX queue */
+ queueid = 0;
+ printf("rxq=%d ", queueid);
+ fflush(stdout);
+ ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
+ rte_eth_dev_socket_id(portid), &rx_conf,
+ pool_direct);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: "
+ "err=%d, port=%d\n",
+ ret, portid);
+
+ /* init one TX queue per couple (lcore,port) */
+ queueid = 0;
+ for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+ if (rte_lcore_is_enabled(lcore_id) == 0)
+ continue;
+ printf("txq=%u,%d ", lcore_id, queueid);
+ fflush(stdout);
+ ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
+ rte_eth_dev_socket_id(portid), &tx_conf);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: "
+ "err=%d, port=%d\n", ret, portid);
+
+ qconf = &lcore_queue_conf[lcore_id];
+ qconf->tx_queue_id[portid] = queueid;
+ queueid++;
+ }
+
+ /* Start device */
+ ret = rte_eth_dev_start(portid);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "rte_eth_dev_start: "
+ "err=%d, port=%d\n",
+ ret, portid);
+
+ printf("done: ");
+
+ /* Set port in promiscuous mode */
+ rte_eth_promiscuous_enable(portid);
+ }
+
+ check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
+
+ /* create the LPM table */
+ l3fwd_lpm = rte_lpm_create("L3FWD_LPM", rte_socket_id(), L3FWD_LPM_MAX_RULES, 0);
+ if (l3fwd_lpm == NULL)
+ rte_panic("Unable to create the l3fwd LPM table\n");
+
+ /* populate the LPM table */
+ for (i = 0; i < L3FWD_NUM_ROUTES; i++) {
+ ret = rte_lpm_add(l3fwd_lpm,
+ l3fwd_route_array[i].ip,
+ l3fwd_route_array[i].depth,
+ l3fwd_route_array[i].if_out);
+
+ if (ret < 0) {
+ rte_panic("Unable to add entry %u to the l3fwd "
+ "LPM table\n", i);
+ }
+
+ printf("Adding route 0x%08x / %d (%d)\n",
+ (unsigned) l3fwd_route_array[i].ip,
+ l3fwd_route_array[i].depth,
+ l3fwd_route_array[i].if_out);
+ }
+
+ /* launch per-lcore init on every lcore */
+ rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
+ RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+ if (rte_eal_wait_lcore(lcore_id) < 0)
+ return -1;
+ }
+
+ return 0;
+}
--- /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.
+ */
+
+#ifndef _MAIN_H_
+#define _MAIN_H_
+
+#ifdef RTE_EXEC_ENV_BAREMETAL
+#define MAIN _main
+#else
+#define MAIN main
+#endif
+
+
+int MAIN(int argc, char **argv);
+
+#endif /* _MAIN_H_ */
+++ /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.
-#
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, can be overriden by command line or environment
-RTE_TARGET ?= x86_64-native-linuxapp-gcc
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-ifneq ($(CONFIG_RTE_MBUF_SCATTER_GATHER),y)
-$(error This application requires RTE_MBUF_SCATTER_GATHER to be enabled)
-endif
-
-# binary name
-APP = ipv4_frag
-
-# all source are stored in SRCS-y
-SRCS-y := main.c
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
+++ /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 <stdint.h>
-#include <inttypes.h>
-#include <sys/types.h>
-#include <sys/param.h>
-#include <string.h>
-#include <sys/queue.h>
-#include <stdarg.h>
-#include <errno.h>
-#include <getopt.h>
-
-#include <rte_common.h>
-#include <rte_byteorder.h>
-#include <rte_log.h>
-#include <rte_memory.h>
-#include <rte_memcpy.h>
-#include <rte_memzone.h>
-#include <rte_tailq.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_lpm.h>
-#include <rte_ip.h>
-
-#include "rte_ip_frag.h"
-#include "main.h"
-
-/*
- * Default byte size for the IPv4 Maximum Transfer Unit (MTU).
- * This value includes the size of IPv4 header.
- */
-#define IPV4_MTU_DEFAULT ETHER_MTU
-
-/*
- * Default payload in bytes for the IPv4 packet.
- */
-#define IPV4_DEFAULT_PAYLOAD (IPV4_MTU_DEFAULT - sizeof(struct ipv4_hdr))
-
-#define RTE_LOGTYPE_L3FWD RTE_LOGTYPE_USER1
-
-#define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
-
-/* allow max jumbo frame 9.5 KB */
-#define JUMBO_FRAME_MAX_SIZE 0x2600
-
-#define ROUNDUP_DIV(a, b) (((a) + (b) - 1) / (b))
-
-/*
- * Max number of fragments per packet expected.
- */
-#define MAX_PACKET_FRAG ROUNDUP_DIV(JUMBO_FRAME_MAX_SIZE, IPV4_DEFAULT_PAYLOAD)
-
-#define NB_MBUF 8192
-
-/*
- * RX and TX Prefetch, Host, and Write-back threshold values should be
- * carefully set for optimal performance. Consult the network
- * controller's datasheet and supporting DPDK documentation for guidance
- * on how these parameters should be set.
- */
-#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
-#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
-#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
-
-/*
- * These default values are optimized for use with the Intel(R) 82599 10 GbE
- * Controller and the DPDK ixgbe PMD. Consider using other values for other
- * network controllers and/or network drivers.
- */
-#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
-#define TX_HTHRESH 0 /**< Default values of TX host threshold reg. */
-#define TX_WTHRESH 0 /**< Default values of TX write-back threshold reg. */
-
-#define MAX_PKT_BURST 32
-#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
-
-/* Configure how many packets ahead to prefetch, when reading packets */
-#define PREFETCH_OFFSET 3
-
-/*
- * 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 ports_eth_addr[RTE_MAX_ETHPORTS];
-static struct ether_addr remote_eth_addr =
- {{0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff}};
-
-/* mask of enabled ports */
-static int enabled_port_mask = 0;
-
-static int rx_queue_per_lcore = 1;
-
-#define MBUF_TABLE_SIZE (2 * MAX(MAX_PKT_BURST, MAX_PACKET_FRAG))
-
-struct mbuf_table {
- uint16_t len;
- struct rte_mbuf *m_table[MBUF_TABLE_SIZE];
-};
-
-#define MAX_RX_QUEUE_PER_LCORE 16
-#define MAX_TX_QUEUE_PER_PORT 16
-struct lcore_queue_conf {
- uint16_t n_rx_queue;
- uint8_t rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
- uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
- struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
-
-} __rte_cache_aligned;
-struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
-
-static const struct rte_eth_conf port_conf = {
- .rxmode = {
- .max_rx_pkt_len = JUMBO_FRAME_MAX_SIZE,
- .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 = 1, /**< Jumbo Frame Support enabled */
- .hw_strip_crc = 0, /**< CRC stripped by hardware */
- },
- .txmode = {
- .mq_mode = ETH_MQ_TX_NONE,
- },
-};
-
-static const struct rte_eth_rxconf rx_conf = {
- .rx_thresh = {
- .pthresh = RX_PTHRESH,
- .hthresh = RX_HTHRESH,
- .wthresh = RX_WTHRESH,
- },
-};
-
-static const struct rte_eth_txconf tx_conf = {
- .tx_thresh = {
- .pthresh = TX_PTHRESH,
- .hthresh = TX_HTHRESH,
- .wthresh = TX_WTHRESH,
- },
- .tx_free_thresh = 0, /* Use PMD default values */
- .tx_rs_thresh = 0, /* Use PMD default values */
-};
-
-struct rte_mempool *pool_direct = NULL, *pool_indirect = NULL;
-
-struct l3fwd_route {
- uint32_t ip;
- uint8_t depth;
- uint8_t if_out;
-};
-
-struct l3fwd_route l3fwd_route_array[] = {
- {IPv4(100,10,0,0), 16, 2},
- {IPv4(100,20,0,0), 16, 2},
- {IPv4(100,30,0,0), 16, 0},
- {IPv4(100,40,0,0), 16, 0},
-};
-
-#define L3FWD_NUM_ROUTES \
- (sizeof(l3fwd_route_array) / sizeof(l3fwd_route_array[0]))
-
-#define L3FWD_LPM_MAX_RULES 1024
-
-struct rte_lpm *l3fwd_lpm = NULL;
-
-/* Send burst of packets on an output interface */
-static inline int
-send_burst(struct lcore_queue_conf *qconf, uint16_t n, uint8_t port)
-{
- struct rte_mbuf **m_table;
- int ret;
- uint16_t queueid;
-
- queueid = qconf->tx_queue_id[port];
- m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
-
- ret = rte_eth_tx_burst(port, queueid, m_table, n);
- if (unlikely(ret < n)) {
- do {
- rte_pktmbuf_free(m_table[ret]);
- } while (++ret < n);
- }
-
- return 0;
-}
-
-static inline void
-l3fwd_simple_forward(struct rte_mbuf *m, uint8_t port_in)
-{
- struct lcore_queue_conf *qconf;
- struct ipv4_hdr *ip_hdr;
- uint32_t i, len, lcore_id, ip_dst;
- uint8_t next_hop, port_out;
- int32_t len2;
-
- lcore_id = rte_lcore_id();
- qconf = &lcore_queue_conf[lcore_id];
-
- /* Remove the Ethernet header and trailer from the input packet */
- rte_pktmbuf_adj(m, (uint16_t)sizeof(struct ether_hdr));
-
- /* Read the lookup key (i.e. ip_dst) from the input packet */
- ip_hdr = rte_pktmbuf_mtod(m, struct ipv4_hdr *);
- ip_dst = rte_be_to_cpu_32(ip_hdr->dst_addr);
-
- /* Find destination port */
- if (rte_lpm_lookup(l3fwd_lpm, ip_dst, &next_hop) == 0 &&
- (enabled_port_mask & 1 << next_hop) != 0)
- port_out = next_hop;
- else
- port_out = port_in;
-
- /* Build transmission burst */
- len = qconf->tx_mbufs[port_out].len;
-
- /* if we don't need to do any fragmentation */
- if (likely (IPV4_MTU_DEFAULT >= m->pkt.pkt_len)) {
- qconf->tx_mbufs[port_out].m_table[len] = m;
- len2 = 1;
- } else {
- len2 = rte_ipv4_fragment_packet(m,
- &qconf->tx_mbufs[port_out].m_table[len],
- (uint16_t)(MBUF_TABLE_SIZE - len),
- IPV4_MTU_DEFAULT,
- pool_direct, pool_indirect);
-
- /* Free input packet */
- rte_pktmbuf_free(m);
-
- /* If we fail to fragment the packet */
- if (unlikely (len2 < 0))
- return;
- }
-
- for (i = len; i < len + len2; i ++) {
- m = qconf->tx_mbufs[port_out].m_table[i];
- struct ether_hdr *eth_hdr = (struct ether_hdr *)
- rte_pktmbuf_prepend(m, (uint16_t)sizeof(struct ether_hdr));
- if (eth_hdr == NULL) {
- rte_panic("No headroom in mbuf.\n");
- }
-
- m->pkt.vlan_macip.f.l2_len = sizeof(struct ether_hdr);
-
- ether_addr_copy(&remote_eth_addr, ð_hdr->d_addr);
- ether_addr_copy(&ports_eth_addr[port_out], ð_hdr->s_addr);
- eth_hdr->ether_type = rte_be_to_cpu_16(ETHER_TYPE_IPv4);
- }
-
- len += len2;
-
- if (likely(len < MAX_PKT_BURST)) {
- qconf->tx_mbufs[port_out].len = (uint16_t)len;
- return;
- }
-
- /* Transmit packets */
- send_burst(qconf, (uint16_t)len, port_out);
- qconf->tx_mbufs[port_out].len = 0;
-}
-
-/* main processing loop */
-static int
-main_loop(__attribute__((unused)) void *dummy)
-{
- struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
- unsigned lcore_id;
- uint64_t prev_tsc, diff_tsc, cur_tsc;
- int i, j, nb_rx;
- uint8_t portid;
- 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;
-
- prev_tsc = 0;
-
- lcore_id = rte_lcore_id();
- qconf = &lcore_queue_conf[lcore_id];
-
- if (qconf->n_rx_queue == 0) {
- RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
- return 0;
- }
-
- RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
-
- for (i = 0; i < qconf->n_rx_queue; i++) {
-
- portid = qconf->rx_queue_list[i];
- RTE_LOG(INFO, L3FWD, " -- lcoreid=%u portid=%d\n", lcore_id,
- (int) portid);
- }
-
- while (1) {
-
- cur_tsc = rte_rdtsc();
-
- /*
- * TX burst queue drain
- */
- diff_tsc = cur_tsc - prev_tsc;
- if (unlikely(diff_tsc > drain_tsc)) {
-
- /*
- * This could be optimized (use queueid instead of
- * portid), but it is not called so often
- */
- for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
- if (qconf->tx_mbufs[portid].len == 0)
- continue;
- send_burst(&lcore_queue_conf[lcore_id],
- qconf->tx_mbufs[portid].len,
- portid);
- qconf->tx_mbufs[portid].len = 0;
- }
-
- prev_tsc = cur_tsc;
- }
-
- /*
- * Read packet from RX queues
- */
- for (i = 0; i < qconf->n_rx_queue; i++) {
-
- portid = qconf->rx_queue_list[i];
- nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst,
- MAX_PKT_BURST);
-
- /* Prefetch first packets */
- for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
- rte_prefetch0(rte_pktmbuf_mtod(
- pkts_burst[j], void *));
- }
-
- /* Prefetch and forward already prefetched packets */
- for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
- rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
- j + PREFETCH_OFFSET], void *));
- l3fwd_simple_forward(pkts_burst[j], portid);
- }
-
- /* Forward remaining prefetched packets */
- for (; j < nb_rx; j++) {
- l3fwd_simple_forward(pkts_burst[j], portid);
- }
- }
- }
-}
-
-/* display usage */
-static void
-print_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",
- prgname);
-}
-
-static int
-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 int
-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 -1;
- if (n == 0)
- return -1;
- if (n >= MAX_RX_QUEUE_PER_LCORE)
- return -1;
-
- return n;
-}
-
-/* Parse the argument given in the command line of the application */
-static int
-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:",
- lgopts, &option_index)) != EOF) {
-
- switch (opt) {
- /* portmask */
- case 'p':
- enabled_port_mask = parse_portmask(optarg);
- if (enabled_port_mask < 0) {
- printf("invalid portmask\n");
- print_usage(prgname);
- return -1;
- }
- break;
-
- /* nqueue */
- case 'q':
- rx_queue_per_lcore = parse_nqueue(optarg);
- if (rx_queue_per_lcore < 0) {
- printf("invalid queue number\n");
- print_usage(prgname);
- return -1;
- }
- break;
-
- /* long options */
- case 0:
- print_usage(prgname);
- return -1;
-
- default:
- print_usage(prgname);
- return -1;
- }
- }
-
- if (enabled_port_mask == 0) {
- printf("portmask not specified\n");
- print_usage(prgname);
- return -1;
- }
-
- if (optind >= 0)
- argv[optind-1] = prgname;
-
- ret = optind-1;
- optind = 0; /* reset getopt lib */
- return ret;
-}
-
-static void
-print_ethaddr(const char *name, struct ether_addr *eth_addr)
-{
- printf("%s%02X:%02X:%02X:%02X:%02X:%02X", name,
- eth_addr->addr_bytes[0],
- eth_addr->addr_bytes[1],
- eth_addr->addr_bytes[2],
- eth_addr->addr_bytes[3],
- eth_addr->addr_bytes[4],
- eth_addr->addr_bytes[5]);
-}
-
-/* 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 == 0) {
- 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;
- unsigned nb_ports, i;
- uint16_t queueid = 0;
- unsigned lcore_id = 0, rx_lcore_id = 0;
- uint32_t n_tx_queue, nb_lcores;
- uint8_t portid;
-
- /* init EAL */
- ret = rte_eal_init(argc, argv);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "rte_eal_init failed");
- argc -= ret;
- argv += ret;
-
- /* parse application arguments (after the EAL ones) */
- ret = parse_args(argc, argv);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "Invalid arguments");
-
- /* create the mbuf pools */
- pool_direct =
- rte_mempool_create("pool_direct", NB_MBUF,
- MBUF_SIZE, 32,
- sizeof(struct rte_pktmbuf_pool_private),
- rte_pktmbuf_pool_init, NULL,
- rte_pktmbuf_init, NULL,
- rte_socket_id(), 0);
- if (pool_direct == NULL)
- rte_panic("Cannot init direct mbuf pool\n");
-
- pool_indirect =
- rte_mempool_create("pool_indirect", NB_MBUF,
- sizeof(struct rte_mbuf), 32,
- 0,
- NULL, NULL,
- rte_pktmbuf_init, NULL,
- rte_socket_id(), 0);
- if (pool_indirect == NULL)
- rte_panic("Cannot init indirect mbuf pool\n");
-
- if (rte_eal_pci_probe() < 0)
- rte_panic("Cannot probe PCI\n");
-
- nb_ports = rte_eth_dev_count();
- if (nb_ports > RTE_MAX_ETHPORTS)
- nb_ports = RTE_MAX_ETHPORTS;
-
- nb_lcores = rte_lcore_count();
-
- /* initialize all ports */
- for (portid = 0; portid < nb_ports; portid++) {
- /* skip ports that are not enabled */
- if ((enabled_port_mask & (1 << portid)) == 0) {
- printf("Skipping disabled port %d\n", portid);
- continue;
- }
-
- qconf = &lcore_queue_conf[rx_lcore_id];
-
- /* get the lcore_id for this port */
- while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
- qconf->n_rx_queue == (unsigned)rx_queue_per_lcore) {
-
- rx_lcore_id ++;
- if (rx_lcore_id >= RTE_MAX_LCORE)
- rte_exit(EXIT_FAILURE, "Not enough cores\n");
-
- qconf = &lcore_queue_conf[rx_lcore_id];
- }
- qconf->rx_queue_list[qconf->n_rx_queue] = portid;
- qconf->n_rx_queue++;
-
- /* init port */
- printf("Initializing port %d on lcore %u... ", portid,
- rx_lcore_id);
- fflush(stdout);
-
- n_tx_queue = nb_lcores;
- if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
- n_tx_queue = MAX_TX_QUEUE_PER_PORT;
- ret = rte_eth_dev_configure(portid, 1, (uint16_t)n_tx_queue,
- &port_conf);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "Cannot configure device: "
- "err=%d, port=%d\n",
- ret, portid);
-
- rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
- print_ethaddr(" Address:", &ports_eth_addr[portid]);
- printf(", ");
-
- /* init one RX queue */
- queueid = 0;
- printf("rxq=%d ", queueid);
- fflush(stdout);
- ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
- rte_eth_dev_socket_id(portid), &rx_conf,
- pool_direct);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: "
- "err=%d, port=%d\n",
- ret, portid);
-
- /* init one TX queue per couple (lcore,port) */
- queueid = 0;
- for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
- if (rte_lcore_is_enabled(lcore_id) == 0)
- continue;
- printf("txq=%u,%d ", lcore_id, queueid);
- fflush(stdout);
- ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
- rte_eth_dev_socket_id(portid), &tx_conf);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: "
- "err=%d, port=%d\n", ret, portid);
-
- qconf = &lcore_queue_conf[lcore_id];
- qconf->tx_queue_id[portid] = queueid;
- queueid++;
- }
-
- /* Start device */
- ret = rte_eth_dev_start(portid);
- if (ret < 0)
- rte_exit(EXIT_FAILURE, "rte_eth_dev_start: "
- "err=%d, port=%d\n",
- ret, portid);
-
- printf("done: ");
-
- /* Set port in promiscuous mode */
- rte_eth_promiscuous_enable(portid);
- }
-
- check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
-
- /* create the LPM table */
- l3fwd_lpm = rte_lpm_create("L3FWD_LPM", rte_socket_id(), L3FWD_LPM_MAX_RULES, 0);
- if (l3fwd_lpm == NULL)
- rte_panic("Unable to create the l3fwd LPM table\n");
-
- /* populate the LPM table */
- for (i = 0; i < L3FWD_NUM_ROUTES; i++) {
- ret = rte_lpm_add(l3fwd_lpm,
- l3fwd_route_array[i].ip,
- l3fwd_route_array[i].depth,
- l3fwd_route_array[i].if_out);
-
- if (ret < 0) {
- rte_panic("Unable to add entry %u to the l3fwd "
- "LPM table\n", i);
- }
-
- printf("Adding route 0x%08x / %d (%d)\n",
- (unsigned) l3fwd_route_array[i].ip,
- l3fwd_route_array[i].depth,
- l3fwd_route_array[i].if_out);
- }
-
- /* launch per-lcore init on every lcore */
- rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
- RTE_LCORE_FOREACH_SLAVE(lcore_id) {
- if (rte_eal_wait_lcore(lcore_id) < 0)
- return -1;
- }
-
- return 0;
-}
+++ /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.
- */
-
-#ifndef _MAIN_H_
-#define _MAIN_H_
-
-#ifdef RTE_EXEC_ENV_BAREMETAL
-#define MAIN _main
-#else
-#define MAIN main
-#endif
-
-
-int MAIN(int argc, char **argv);
-
-#endif /* _MAIN_H_ */
git.droids-corp.org / dpdk.git / commitdiff