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authorIntel <intel.com>2013-09-18 12:00:00 +0200
committerThomas Monjalon <thomas.monjalon@6wind.com>2013-10-09 16:16:15 +0200
commit6bb97df521aa0770ae83e904627cfc6a7028da14 (patch)
treea0bcf159f026d34f2234e117c143f4d3d12cdec5 /examples/vmdq
parent7741e4cf16c0548e15d07b847fd96691b44efb29 (diff)
downloaddpdk-6bb97df521aa0770ae83e904627cfc6a7028da14.zip
dpdk-6bb97df521aa0770ae83e904627cfc6a7028da14.tar.gz
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examples/vmdq: new app
Signed-off-by: Intel
Diffstat (limited to 'examples/vmdq')
-rw-r--r--examples/vmdq/Makefile51
-rw-r--r--examples/vmdq/main.c647
-rw-r--r--examples/vmdq/main.h46
3 files changed, 744 insertions, 0 deletions
diff --git a/examples/vmdq/Makefile b/examples/vmdq/Makefile
new file mode 100644
index 0000000..1b3f981
--- /dev/null
+++ b/examples/vmdq/Makefile
@@ -0,0 +1,51 @@
+# BSD LICENSE
+#
+# Copyright(c) 2010-2013 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-default-linuxapp-gcc
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+# binary name
+APP = vmdq_app
+
+# all source are stored in SRCS-y
+SRCS-y := main.c
+
+CFLAGS += $(WERROR_FLAGS)
+
+EXTRA_CFLAGS += -O3
+
+include $(RTE_SDK)/mk/rte.extapp.mk
diff --git a/examples/vmdq/main.c b/examples/vmdq/main.c
new file mode 100644
index 0000000..6c3ba6d
--- /dev/null
+++ b/examples/vmdq/main.c
@@ -0,0 +1,647 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2013 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 <stdint.h>
+#include <sys/queue.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <assert.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <getopt.h>
+
+#include <rte_common.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_log.h>
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_memcpy.h>
+
+#include "main.h"
+
+#define MAX_QUEUES 128
+/*
+ * For 10 GbE, 128 queues require roughly
+ * 128*512 (RX/TX_queue_nb * RX/TX_ring_descriptors_nb) per port.
+ */
+#define NUM_MBUFS_PER_PORT (128*512)
+#define MBUF_CACHE_SIZE 64
+#define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
+
+/*
+ * 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
+
+/*
+ * Configurable number of RX/TX ring descriptors
+ */
+#define RTE_TEST_RX_DESC_DEFAULT 128
+#define RTE_TEST_TX_DESC_DEFAULT 512
+
+#define INVALID_PORT_ID 0xFF
+
+/* mask of enabled ports */
+static uint32_t enabled_port_mask = 0;
+
+/* number of pools (if user does not specify any, 8 by default */
+static uint32_t num_queues = 8;
+static uint32_t num_pools = 8;
+
+/*
+ * 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.
+ */
+/* Default configuration for rx and tx thresholds etc. */
+static const struct rte_eth_rxconf rx_conf_default = {
+ .rx_thresh = {
+ .pthresh = RX_PTHRESH,
+ .hthresh = RX_HTHRESH,
+ .wthresh = RX_WTHRESH,
+ },
+};
+
+/*
+ * These default values are optimized for use with the Intel(R) 82599 10 GbE
+ * Controller and the DPDK ixgbe/igb PMD. Consider using other values for other
+ * network controllers and/or network drivers.
+ */
+static const struct rte_eth_txconf tx_conf_default = {
+ .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 */
+};
+
+/* empty vmdq configuration structure. Filled in programatically */
+static const struct rte_eth_conf vmdq_conf_default = {
+ .rxmode = {
+ .mq_mode = ETH_MQ_RX_VMDQ_ONLY,
+ .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 */
+ },
+
+ .txmode = {
+ .mq_mode = ETH_MQ_TX_NONE,
+ },
+ .rx_adv_conf = {
+ /*
+ * should be overridden separately in code with
+ * appropriate values
+ */
+ .vmdq_rx_conf = {
+ .nb_queue_pools = ETH_8_POOLS,
+ .enable_default_pool = 0,
+ .default_pool = 0,
+ .nb_pool_maps = 0,
+ .pool_map = {{0, 0},},
+ },
+ },
+};
+
+static unsigned lcore_ids[RTE_MAX_LCORE];
+static uint8_t ports[RTE_MAX_ETHPORTS];
+static unsigned num_ports = 0; /**< The number of ports specified in command line */
+
+/* array used for printing out statistics */
+volatile unsigned long rxPackets[ MAX_QUEUES ] = {0};
+
+const uint16_t vlan_tags[] = {
+ 0, 1, 2, 3, 4, 5, 6, 7,
+ 8, 9, 10, 11, 12, 13, 14, 15,
+ 16, 17, 18, 19, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31,
+ 32, 33, 34, 35, 36, 37, 38, 39,
+ 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55,
+ 56, 57, 58, 59, 60, 61, 62, 63,
+};
+
+/* ethernet addresses of ports */
+static struct ether_addr vmdq_ports_eth_addr[RTE_MAX_ETHPORTS];
+
+#define MAX_QUEUE_NUM_10G 128
+#define MAX_QUEUE_NUM_1G 8
+#define MAX_POOL_MAP_NUM_10G 64
+#define MAX_POOL_MAP_NUM_1G 32
+#define MAX_POOL_NUM_10G 64
+#define MAX_POOL_NUM_1G 8
+/* Builds up the correct configuration for vmdq based on the vlan tags array
+ * given above, and determine the queue number and pool map number according to valid pool number */
+static inline int
+get_eth_conf(struct rte_eth_conf *eth_conf, uint32_t num_pools)
+{
+ struct rte_eth_vmdq_rx_conf conf;
+ unsigned i;
+
+ conf.nb_queue_pools = (enum rte_eth_nb_pools)num_pools;
+ conf.enable_default_pool = 0;
+ conf.default_pool = 0; /* set explicit value, even if not used */
+ switch (num_pools) {
+ /* For 10G NIC like 82599, 128 is valid for queue number */
+ case MAX_POOL_NUM_10G:
+ num_queues = MAX_QUEUE_NUM_10G;
+ conf.nb_pool_maps = MAX_POOL_MAP_NUM_10G;
+ break;
+ /* For 1G NIC like i350, 82580 and 82576, 8 is valid for queue number */
+ case MAX_POOL_NUM_1G:
+ num_queues = MAX_QUEUE_NUM_1G;
+ conf.nb_pool_maps = MAX_POOL_MAP_NUM_1G;
+ break;
+ default:
+ return -1;
+ }
+
+ for (i = 0; i < conf.nb_pool_maps; i++){
+ conf.pool_map[i].vlan_id = vlan_tags[ i ];
+ conf.pool_map[i].pools = (1UL << (i % num_pools));
+ }
+
+ (void)(rte_memcpy(eth_conf, &vmdq_conf_default, sizeof(*eth_conf)));
+ (void)(rte_memcpy(&eth_conf->rx_adv_conf.vmdq_rx_conf, &conf,
+ sizeof(eth_conf->rx_adv_conf.vmdq_rx_conf)));
+ return 0;
+}
+
+/*
+ * Validate the pool number accrording to the max pool number gotten form dev_info
+ * If the pool number is invalid, give the error message and return -1
+ */
+static inline int
+validate_num_pools(uint32_t max_nb_pools)
+{
+ if (num_pools > max_nb_pools) {
+ printf("invalid number of pools\n");
+ return -1;
+ }
+
+ switch (max_nb_pools) {
+ /* For 10G NIC like 82599, 64 is valid for pool number */
+ case MAX_POOL_NUM_10G:
+ if (num_pools != MAX_POOL_NUM_10G) {
+ printf("invalid number of pools\n");
+ return -1;
+ }
+ break;
+ /* For 1G NIC like i350, 82580 and 82576, 8 is valid for pool number */
+ case MAX_POOL_NUM_1G:
+ if (num_pools != MAX_POOL_NUM_1G) {
+ printf("invalid number of pools\n");
+ return -1;
+ }
+ break;
+ default:
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * Initialises a given port using global settings and with the rx buffers
+ * coming from the mbuf_pool passed as parameter
+ */
+static inline int
+port_init(uint8_t port, struct rte_mempool *mbuf_pool)
+{
+ struct rte_eth_dev_info dev_info;
+ struct rte_eth_conf port_conf;
+ uint16_t rxRings, txRings = (uint16_t)rte_lcore_count();
+ const uint16_t rxRingSize = RTE_TEST_RX_DESC_DEFAULT, txRingSize = RTE_TEST_TX_DESC_DEFAULT;
+ int retval;
+ uint16_t q;
+ uint32_t max_nb_pools;
+
+ /* The max pool number from dev_info will be used to validate the pool number specified in cmd line */
+ rte_eth_dev_info_get (port, &dev_info);
+ max_nb_pools = (uint32_t)dev_info.max_vmdq_pools;
+ retval = validate_num_pools(max_nb_pools);
+ if (retval < 0)
+ return retval;
+
+ retval = get_eth_conf(&port_conf, num_pools);
+ if (retval < 0)
+ return retval;
+
+ if (port >= rte_eth_dev_count()) return -1;
+
+ rxRings = (uint16_t)num_queues,
+ retval = rte_eth_dev_configure(port, rxRings, txRings, &port_conf);
+ if (retval != 0)
+ return retval;
+
+ for (q = 0; q < rxRings; q ++) {
+ retval = rte_eth_rx_queue_setup(port, q, rxRingSize,
+ rte_eth_dev_socket_id(port), &rx_conf_default,
+ mbuf_pool);
+ if (retval < 0)
+ return retval;
+ }
+
+ for (q = 0; q < txRings; q ++) {
+ retval = rte_eth_tx_queue_setup(port, q, txRingSize,
+ rte_eth_dev_socket_id(port), &tx_conf_default);
+ if (retval < 0)
+ return retval;
+ }
+
+ retval = rte_eth_dev_start(port);
+ if (retval < 0)
+ return retval;
+
+ rte_eth_macaddr_get(port, &vmdq_ports_eth_addr[port]);
+ printf("Port %u MAC: %02"PRIx8" %02"PRIx8" %02"PRIx8
+ " %02"PRIx8" %02"PRIx8" %02"PRIx8"\n",
+ (unsigned)port,
+ vmdq_ports_eth_addr[port].addr_bytes[0],
+ vmdq_ports_eth_addr[port].addr_bytes[1],
+ vmdq_ports_eth_addr[port].addr_bytes[2],
+ vmdq_ports_eth_addr[port].addr_bytes[3],
+ vmdq_ports_eth_addr[port].addr_bytes[4],
+ vmdq_ports_eth_addr[port].addr_bytes[5]);
+
+ return 0;
+}
+
+/* Check num_pools parameter and set it if OK*/
+static int
+vmdq_parse_num_pools(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;
+
+ num_pools = n;
+
+ return 0;
+}
+
+
+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;
+}
+
+/* Display usage */
+static void
+vmdq_usage(const char *prgname)
+{
+ printf("%s [EAL options] -- -p PORTMASK]\n"
+ " --nb-pools NP: number of pools\n",
+ prgname);
+}
+
+/* Parse the argument (num_pools) given in the command line of the application */
+static int
+vmdq_parse_args(int argc, char **argv)
+{
+ int opt;
+ int option_index;
+ unsigned i;
+ const char *prgname = argv[0];
+ static struct option long_option[] = {
+ {"nb-pools", required_argument, NULL, 0},
+ {NULL, 0, 0, 0}
+ };
+
+ /* Parse command line */
+ while ((opt = getopt_long(argc, argv, "p:",long_option,&option_index)) != EOF) {
+ switch (opt) {
+ /* portmask */
+ case 'p':
+ enabled_port_mask = parse_portmask(optarg);
+ if (enabled_port_mask == 0) {
+ printf("invalid portmask\n");
+ vmdq_usage(prgname);
+ return -1;
+ }
+ break;
+ case 0:
+ if (vmdq_parse_num_pools(optarg) == -1){
+ printf("invalid number of pools\n");
+ vmdq_usage(prgname);
+ return -1;
+ }
+ break;
+
+ default:
+ vmdq_usage(prgname);
+ return -1;
+ }
+ }
+
+ for(i = 0; i < RTE_MAX_ETHPORTS; i++) {
+ if (enabled_port_mask & (1 << i))
+ ports[num_ports++] = (uint8_t)i;
+ }
+
+ if (num_ports < 2 || num_ports % 2) {
+ printf("Current enabled port number is %u,"
+ "but it should be even and at least 2\n",num_ports);
+ return -1;
+ }
+
+ return 0;
+}
+
+static void
+update_mac_address(struct rte_mbuf *m, unsigned dst_port)
+{
+ struct ether_hdr *eth;
+ void *tmp;
+
+ eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
+
+ /* 02:00:00:00:00:xx */
+ tmp = &eth->d_addr.addr_bytes[0];
+ *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
+
+ /* src addr */
+ ether_addr_copy(&vmdq_ports_eth_addr[dst_port], &eth->s_addr);
+}
+
+#ifndef RTE_EXEC_ENV_BAREMETAL
+/* When we receive a HUP signal, print out our stats */
+static void
+sighup_handler(int signum)
+{
+ unsigned q;
+ for (q = 0; q < num_queues; q ++) {
+ if (q % (num_queues/num_pools) == 0)
+ printf("\nPool %u: ", q/(num_queues/num_pools));
+ printf("%lu ", rxPackets[ q ]);
+ }
+ printf("\nFinished handling signal %d\n", signum);
+}
+#endif
+
+/*
+ * Main thread that does the work, reading from INPUT_PORT
+ * and writing to OUTPUT_PORT
+ */
+static __attribute__((noreturn)) int
+lcore_main(__attribute__((__unused__)) void* dummy)
+{
+ const uint16_t lcore_id = (uint16_t)rte_lcore_id();
+ const uint16_t num_cores = (uint16_t)rte_lcore_count();
+ uint16_t core_id = 0;
+ uint16_t startQueue, endQueue;
+ uint16_t q, i, p;
+ const uint16_t remainder = (uint16_t)(num_queues % num_cores);
+
+ for (i = 0; i < num_cores; i ++)
+ if (lcore_ids[i] == lcore_id) {
+ core_id = i;
+ break;
+ }
+
+ if (remainder != 0) {
+ if (core_id < remainder) {
+ startQueue = (uint16_t)(core_id * (num_queues/num_cores + 1));
+ endQueue = (uint16_t)(startQueue + (num_queues/num_cores) + 1);
+ } else {
+ startQueue = (uint16_t)(core_id * (num_queues/num_cores) + remainder);
+ endQueue = (uint16_t)(startQueue + (num_queues/num_cores));
+ }
+ } else {
+ startQueue = (uint16_t)(core_id * (num_queues/num_cores));
+ endQueue = (uint16_t)(startQueue + (num_queues/num_cores));
+ }
+
+ printf("core %u(lcore %u) reading queues %i-%i\n", (unsigned)core_id,
+ (unsigned)lcore_id, startQueue, endQueue - 1);
+
+ for (;;) {
+ struct rte_mbuf *buf[MAX_PKT_BURST];
+ const uint16_t buf_size = sizeof(buf) / sizeof(buf[0]);
+
+ for (p = 0; p < num_ports; p++) {
+ const uint8_t sport = ports[p];
+ const uint8_t dport = ports[p ^ 1]; /* 0 <-> 1, 2 <-> 3 etc */
+
+ if ((sport == INVALID_PORT_ID) || (dport == INVALID_PORT_ID))
+ continue;
+
+ for (q = startQueue; q < endQueue; q++) {
+ const uint16_t rxCount = rte_eth_rx_burst(sport,
+ q, buf, buf_size);
+
+ if (unlikely(rxCount == 0))
+ continue;
+
+ rxPackets[q] += rxCount;
+
+ for (i = 0; i < rxCount; i++)
+ update_mac_address(buf[i], dport);
+
+ const uint16_t txCount = rte_eth_tx_burst(dport,
+ lcore_id, buf, rxCount);
+
+ if (txCount != rxCount) {
+ for (i = txCount; i < rxCount; i++)
+ rte_pktmbuf_free(buf[i]);
+ }
+ }
+ }
+ }
+}
+
+/*
+ * Update the global var NUM_PORTS and array PORTS according to system ports number
+ * and return valid ports number
+ */
+static unsigned check_ports_num(unsigned nb_ports)
+{
+ unsigned valid_num_ports = num_ports;
+ unsigned portid;
+
+ if (num_ports > nb_ports) {
+ printf("\nSpecified port number(%u) exceeds total system port number(%u)\n",
+ num_ports, nb_ports);
+ num_ports = nb_ports;
+ }
+
+ for (portid = 0; portid < num_ports; portid ++) {
+ if (ports[portid] >= nb_ports) {
+ printf("\nSpecified port ID(%u) exceeds max system port ID(%u)\n",
+ ports[portid], (nb_ports - 1));
+ ports[portid] = INVALID_PORT_ID;
+ valid_num_ports --;
+ }
+ }
+ return valid_num_ports;
+}
+
+/* Main function, does initialisation and calls the per-lcore functions */
+int
+MAIN(int argc, char *argv[])
+{
+ struct rte_mempool *mbuf_pool;
+ unsigned lcore_id, core_id = 0;
+ int ret;
+ unsigned nb_ports, valid_num_ports;
+ uint8_t portid;
+
+#ifndef RTE_EXEC_ENV_BAREMETAL
+ signal(SIGHUP, sighup_handler);
+#endif
+
+ /* init EAL */
+ ret = rte_eal_init(argc, argv);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Error with EAL initialization\n");
+ argc -= ret;
+ argv += ret;
+
+ /* parse app arguments */
+ ret = vmdq_parse_args(argc, argv);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Invalid VMDQ argument\n");
+
+ if (rte_pmd_init_all() != 0 || rte_eal_pci_probe() != 0)
+ rte_exit(EXIT_FAILURE, "Error with NIC driver initialization\n");
+
+ for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id ++)
+ if (rte_lcore_is_enabled(lcore_id))
+ lcore_ids[core_id ++] = lcore_id;
+
+ if (rte_lcore_count() > RTE_MAX_LCORE)
+ rte_exit(EXIT_FAILURE,"Not enough cores\n");
+
+ nb_ports = rte_eth_dev_count();
+ if (nb_ports > RTE_MAX_ETHPORTS)
+ nb_ports = RTE_MAX_ETHPORTS;
+
+ /*
+ * Update the global var NUM_PORTS and global array PORTS
+ * and get value of var VALID_NUM_PORTS according to system ports number
+ */
+ valid_num_ports = check_ports_num(nb_ports);
+
+ if (valid_num_ports < 2 || valid_num_ports % 2) {
+ printf("Current valid ports number is %u\n", valid_num_ports);
+ rte_exit(EXIT_FAILURE, "Error with valid ports number is not even or less than 2\n");
+ }
+
+ mbuf_pool = rte_mempool_create("MBUF_POOL", NUM_MBUFS_PER_PORT * nb_ports,
+ MBUF_SIZE, MBUF_CACHE_SIZE,
+ sizeof(struct rte_pktmbuf_pool_private),
+ rte_pktmbuf_pool_init, NULL,
+ rte_pktmbuf_init, NULL,
+ rte_socket_id(), 0);
+ if (mbuf_pool == NULL)
+ rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
+
+ /* initialize all ports */
+ for (portid = 0; portid < nb_ports; portid++) {
+ /* skip ports that are not enabled */
+ if ((enabled_port_mask & (1 << portid)) == 0) {
+ printf("\nSkipping disabled port %d\n", portid);
+ continue;
+ }
+ if (port_init(portid, mbuf_pool) != 0)
+ rte_exit(EXIT_FAILURE, "Cannot initialize network ports\n");
+ }
+
+ /* call lcore_main() on every lcore */
+ rte_eal_mp_remote_launch(lcore_main, NULL, CALL_MASTER);
+ RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+ if (rte_eal_wait_lcore(lcore_id) < 0)
+ return -1;
+ }
+
+ return 0;
+}
diff --git a/examples/vmdq/main.h b/examples/vmdq/main.h
new file mode 100644
index 0000000..d27c5c2
--- /dev/null
+++ b/examples/vmdq/main.h
@@ -0,0 +1,46 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2013 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 /* ifndef _MAIN_H_ */