From: Reshma Pattan <reshma.pat...@intel.com> A new sample app that shows the usage of the distributor library. This app works as follows:
* An RX thread runs which pulls packets from each ethernet port in turn and passes those packets to worker using a distributor component. * The workers take the packets in turn, and determine the output port for those packets using basic l2forwarding doing an xor on the source port id. * The RX thread takes the returned packets from the workers and enqueue those packets into an rte_ring structure. * A TX thread pulls the packets off the rte_ring structure and then sends each packet out the output port specified previously by the worker * Command-line option support provided only for portmask. Signed-off-by: Bruce Richardson <bruce.richardson at intel.com> Signed-off-by: Reshma Pattan <reshma.pattan at intel.com> --- examples/Makefile | 1 + examples/distributor_app/Makefile | 57 ++++ examples/distributor_app/main.c | 600 +++++++++++++++++++++++++++++++++++++ examples/distributor_app/main.h | 46 +++ 4 files changed, 704 insertions(+), 0 deletions(-) create mode 100644 examples/distributor_app/Makefile create mode 100644 examples/distributor_app/main.c create mode 100644 examples/distributor_app/main.h diff --git a/examples/Makefile b/examples/Makefile index 6245f83..2ba82b0 100644 --- a/examples/Makefile +++ b/examples/Makefile @@ -66,5 +66,6 @@ DIRS-y += vhost DIRS-$(CONFIG_RTE_LIBRTE_XEN_DOM0) += vhost_xen DIRS-y += vmdq DIRS-y += vmdq_dcb +DIRS-$(CONFIG_RTE_LIBRTE_DISTRIBUTOR) += distributor_app include $(RTE_SDK)/mk/rte.extsubdir.mk diff --git a/examples/distributor_app/Makefile b/examples/distributor_app/Makefile new file mode 100644 index 0000000..6a5bada --- /dev/null +++ b/examples/distributor_app/Makefile @@ -0,0 +1,57 @@ +# BSD LICENSE +# +# Copyright(c) 2010-2014 Intel Corporation. All rights reserved. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Intel Corporation nor the names of its +# contributors may be used to endorse or promote products derived +# from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +ifeq ($(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 + +# binary name +APP = distributor_app + +# all source are stored in SRCS-y +SRCS-y := main.c + +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 + +EXTRA_CFLAGS += -O3 -Wfatal-errors + +include $(RTE_SDK)/mk/rte.extapp.mk diff --git a/examples/distributor_app/main.c b/examples/distributor_app/main.c new file mode 100644 index 0000000..f555d93 --- /dev/null +++ b/examples/distributor_app/main.c @@ -0,0 +1,600 @@ +/*- + * 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 <stdint.h> +#include <inttypes.h> +#include <unistd.h> +#include <signal.h> +#include <getopt.h> + +#include <rte_eal.h> +#include <rte_ethdev.h> +#include <rte_cycles.h> +#include <rte_malloc.h> +#include <rte_debug.h> +#include <rte_distributor.h> + +#include "main.h" + +#define RX_RING_SIZE 256 +#define RX_FREE_THRESH 32 +#define RX_PTHRESH 8 +#define RX_HTHRESH 8 +#define RX_WTHRESH 0 + +#define TX_RING_SIZE 512 +#define TX_FREE_THRESH 32 +#define TX_PTHRESH 32 +#define TX_HTHRESH 0 +#define TX_WTHRESH 0 +#define TX_RSBIT_THRESH 32 +#define TX_Q_FLAGS (ETH_TXQ_FLAGS_NOMULTSEGS | ETH_TXQ_FLAGS_NOVLANOFFL |\ + ETH_TXQ_FLAGS_NOXSUMSCTP | ETH_TXQ_FLAGS_NOXSUMUDP | \ + ETH_TXQ_FLAGS_NOXSUMTCP) + +#define NUM_MBUFS ((64*1024)-1) +#define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM) +#define MBUF_CACHE_SIZE 250 +#define BURST_SIZE 32 +#define RTE_RING_SZ 1024 + +/* uncommnet below line to enable debug logs */ +/* #define DEBUG */ + +#ifdef DEBUG +#define LOG_LEVEL RTE_LOG_DEBUG +#define LOG_DEBUG(log_type, fmt, args...) do { \ + RTE_LOG(DEBUG, log_type, fmt, ##args) \ +} while (0) +#else +#define LOG_LEVEL RTE_LOG_INFO +#define LOG_DEBUG(log_type, fmt, args...) do {} while (0) +#endif + +#define RTE_LOGTYPE_DISTRAPP RTE_LOGTYPE_USER1 + +/* mask of enabled ports */ +static uint32_t enabled_port_mask = 0; + +static volatile struct app_stats { + struct { + uint64_t rx_pkts; + uint64_t returned_pkts; + uint64_t enqueued_pkts; + } rx __rte_cache_aligned; + + struct { + uint64_t dequeue_pkts; + uint64_t tx_pkts; + } tx __rte_cache_aligned; +} app_stats; + +static const struct rte_eth_conf port_conf_default = { + .rxmode = { + .mq_mode = ETH_MQ_RX_RSS, + .max_rx_pkt_len = ETHER_MAX_LEN, + .split_hdr_size = 0, + .header_split = 0, /**< Header Split disabled */ + .hw_ip_checksum = 0, /**< IP checksum offload enabled */ + .hw_vlan_filter = 0, /**< VLAN filtering disabled */ + .jumbo_frame = 0, /**< Jumbo Frame Support disabled */ + .hw_strip_crc = 0, /**< CRC stripped by hardware */ + }, + .txmode = { + .mq_mode = ETH_MQ_TX_NONE, + }, + .lpbk_mode = 0, + .rx_adv_conf = { + .rss_conf = { + .rss_hf = ETH_RSS_IPV4 | ETH_RSS_IPV6 | + ETH_RSS_IPV4_TCP | ETH_RSS_IPV4_UDP | + ETH_RSS_IPV6_TCP | ETH_RSS_IPV6_UDP, + } + }, +}; + +static const struct rte_eth_rxconf rx_conf_default = { + .rx_thresh = { + .pthresh = RX_PTHRESH, + .hthresh = RX_HTHRESH, + .wthresh = RX_WTHRESH, + }, + .rx_free_thresh = RX_FREE_THRESH, + .rx_drop_en = 0, +}; + +static const struct rte_eth_txconf tx_conf_default = { + .tx_thresh = { + .pthresh = TX_PTHRESH, + .hthresh = TX_HTHRESH, + .wthresh = TX_WTHRESH, + }, + .tx_free_thresh = TX_FREE_THRESH, + .tx_rs_thresh = TX_RSBIT_THRESH, + .txq_flags = TX_Q_FLAGS + +}; + +struct output_buffer { + unsigned count; + struct rte_mbuf *mbufs[BURST_SIZE]; +}; + +/* + * 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_conf port_conf = port_conf_default; + const uint16_t rxRings = 1, txRings = rte_lcore_count() - 1; + int retval; + uint16_t q; + + if (port >= rte_eth_dev_count()) + return -1; + + 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, RX_RING_SIZE, + 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, TX_RING_SIZE, + 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; + + struct rte_eth_link link; + rte_eth_link_get_nowait(port, &link); + if (!link.link_status) { + sleep(1); + rte_eth_link_get_nowait(port, &link); + } + + if (!link.link_status) { + printf("Link down on port %"PRIu8"\n", port); + return 0; + } + + struct ether_addr addr; + rte_eth_macaddr_get(port, &addr); + printf("Port %u MAC: %02"PRIx8" %02"PRIx8" %02"PRIx8 + " %02"PRIx8" %02"PRIx8" %02"PRIx8"\n", + (unsigned)port, + addr.addr_bytes[0], addr.addr_bytes[1], + addr.addr_bytes[2], addr.addr_bytes[3], + addr.addr_bytes[4], addr.addr_bytes[5]); + + rte_eth_promiscuous_enable(port); + + return 0; +} + +struct lcore_params { + unsigned worker_id; + struct rte_distributor *d; + struct rte_ring *r; +}; + +static __attribute__((noreturn)) void +lcore_rx(struct lcore_params *p) +{ + struct rte_distributor *d = p->d; + struct rte_ring *r = p->r; + const uint8_t nb_ports = rte_eth_dev_count(); + const int socket_id = rte_socket_id(); + uint8_t port; + + for (port = 0; port < nb_ports; port++) { + /* skip ports that are not enabled */ + if ((enabled_port_mask & (1 << port)) == 0) + continue; + + if (rte_eth_dev_socket_id(port) > 0 && + rte_eth_dev_socket_id(port) != socket_id) + printf("WARNING, port %u is on remote NUMA node to " + "RX thread.\n\tPerformance will not " + "be optimal.\n", port); + } + + printf("\nCore %u doing packet RX.\n", rte_lcore_id()); + port = 0; + for (;;) { + /* skip ports that are not enabled */ + if ((enabled_port_mask & (1 << port)) == 0) { + if (++port == nb_ports) + port = 0; + continue; + } + struct rte_mbuf *bufs[BURST_SIZE*2]; + const uint16_t nb_rx = rte_eth_rx_burst(port, 0, bufs, + BURST_SIZE); + app_stats.rx.rx_pkts += nb_rx; + + rte_distributor_process(d, bufs, nb_rx); + const uint16_t nb_ret = rte_distributor_returned_pkts(d, + bufs, BURST_SIZE*2); + app_stats.rx.returned_pkts += nb_ret; + if (unlikely(nb_ret == 0)) + continue; + + uint16_t sent = rte_ring_enqueue_burst(r, (void *)bufs, nb_ret); + app_stats.rx.enqueued_pkts += sent; + if (unlikely(sent < nb_ret)) { + LOG_DEBUG(DISTRAPP, "%s:Packet loss due to full ring\n", __func__); + while (sent < nb_ret) + rte_pktmbuf_free(bufs[sent++]); + } + if (++port == nb_ports) + port = 0; + } +} + +static inline void +flush_one_port(struct output_buffer *outbuf, uint8_t outp) +{ + unsigned nb_tx = rte_eth_tx_burst(outp, 0, outbuf->mbufs, + outbuf->count); + app_stats.tx.tx_pkts += nb_tx; + + if (unlikely(nb_tx < outbuf->count)) { + LOG_DEBUG(DISTRAPP, "%s:Packet loss with tx_burst\n", __func__); + do { + rte_pktmbuf_free(outbuf->mbufs[nb_tx]); + } while (++nb_tx < outbuf->count); + } + outbuf->count = 0; +} + +static inline void +flush_all_ports(struct output_buffer *tx_buffers, uint8_t nb_ports) +{ + uint8_t outp; + for (outp = 0; outp < nb_ports; outp++) { + /* skip ports that are not enabled */ + if ((enabled_port_mask & (1 << outp)) == 0) + continue; + + if (tx_buffers[outp].count == 0) + continue; + + flush_one_port(&tx_buffers[outp], outp); + } +} + +static __attribute__((noreturn)) void +lcore_tx(struct rte_ring *in_r) +{ + static struct output_buffer tx_buffers[RTE_MAX_ETHPORTS]; + const uint8_t nb_ports = rte_eth_dev_count(); + const int socket_id = rte_socket_id(); + uint8_t port; + + for (port = 0; port < nb_ports; port++) { + /* skip ports that are not enabled */ + if ((enabled_port_mask & (1 << port)) == 0) + continue; + + if (rte_eth_dev_socket_id(port) > 0 && + rte_eth_dev_socket_id(port) != socket_id) + printf("WARNING, port %u is on remote NUMA node to " + "TX thread.\n\tPerformance will not " + "be optimal.\n", port); + } + + printf("\nCore %u doing packet TX.\n", rte_lcore_id()); + for (;;) { + for (port = 0; port < nb_ports; port++) { + /* skip ports that are not enabled */ + if ((enabled_port_mask & (1 << port)) == 0) + continue; + + struct rte_mbuf *bufs[BURST_SIZE]; + const uint16_t nb_rx = rte_ring_dequeue_burst(in_r, + (void *)bufs, BURST_SIZE); + app_stats.tx.dequeue_pkts += nb_rx; + + /* if we get no traffic, flush anything we have */ + if (unlikely(nb_rx == 0)) { + flush_all_ports(tx_buffers, nb_ports); + continue; + } + + /* for traffic we receive, queue it up for transmit */ + uint16_t i; + _mm_prefetch(bufs[0], 0); + _mm_prefetch(bufs[1], 0); + _mm_prefetch(bufs[2], 0); + for (i = 0; i < nb_rx; i++) { + struct output_buffer *outbuf; + uint8_t outp; + _mm_prefetch(bufs[i + 3], 0); + /* workers should update in_port to hold the + * output port value */ + outp = bufs[i]->port; + /* skip ports that are not enabled */ + if ((enabled_port_mask & (1 << outp)) == 0) + continue; + + outbuf = &tx_buffers[outp]; + outbuf->mbufs[outbuf->count++] = bufs[i]; + if (outbuf->count == BURST_SIZE) + flush_one_port(outbuf, outp); + } + } + } +} + + +static __attribute__((noreturn)) void +lcore_worker(struct lcore_params *p) +{ + struct rte_distributor *d = p->d; + const unsigned id = p->worker_id; + /* for single port, xor_val will be zero so we won't modify the output + * port, otherwise we send traffic from 0 to 1, 2 to 3, and vice versa + */ + const unsigned xor_val = (rte_eth_dev_count() > 1); + struct rte_mbuf *buf = NULL; + + printf("\nCore %u acting as worker core.\n", rte_lcore_id()); + for (;;) { + buf = rte_distributor_get_pkt(d, id, buf); + buf->port ^= xor_val; + } +} + +static void +int_handler(int sig_num) +{ + struct rte_eth_stats eth_stats; + unsigned i; + + printf("Exiting on signal %d\n", sig_num); + + printf("\nRX thread stats:\n"); + printf(" - Received: %"PRIu64"\n", app_stats.rx.rx_pkts); + printf(" - Processed: %"PRIu64"\n", app_stats.rx.returned_pkts); + printf(" - Enqueued: %"PRIu64"\n", app_stats.rx.enqueued_pkts); + + printf("\nTX thread stats:\n"); + printf(" - Dequeued: %"PRIu64"\n", app_stats.tx.dequeue_pkts); + printf(" - Transmitted: %"PRIu64"\n", app_stats.tx.tx_pkts); + + for (i = 0; i < rte_eth_dev_count(); i++) { + rte_eth_stats_get(i, ð_stats); + printf("\nPort %u stats:\n", i); + printf(" - Pkts in: %"PRIu64"\n", eth_stats.ipackets); + printf(" - Pkts out: %"PRIu64"\n", eth_stats.opackets); + printf(" - In Errs: %"PRIu64"\n", eth_stats.ierrors); + printf(" - Out Errs: %"PRIu64"\n", eth_stats.oerrors); + printf(" - Mbuf Errs: %"PRIu64"\n", eth_stats.rx_nombuf); + } + exit(0); +} + +/* display usage */ +static void +print_usage(const char *prgname) +{ + printf("%s [EAL options] -- -p PORTMASK\n" + " -p PORTMASK: hexadecimal bitmask of ports to configure\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; +} + +/* Parse the argument given in the command line of the application */ +static int +parse_args(int argc, char **argv) +{ + int opt; + 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:", + 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; + + default: + print_usage(prgname); + return -1; + } + } + +if (optind <= 1) { + print_usage(prgname); + return -1; +} + + argv[optind-1] = prgname; + + optind = 0; /* reset getopt lib */ + return 0; +} + +/* Main function, does initialization and calls the per-lcore functions */ +int +MAIN(int argc, char *argv[]) +{ + struct rte_mempool *mbuf_pool; + struct rte_distributor *d; + struct rte_ring *output_ring; + unsigned lcore_id, worker_id = 0; + unsigned nb_ports; + uint8_t portid; + uint8_t nb_ports_available; + + /* catch ctrl-c so we can print on exit */ + signal(SIGINT, int_handler); + + /* init EAL */ + int ret = rte_eal_init(argc, argv); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Error with EAL initialization\n"); + argc -= ret; + argv += ret; + + /* parse application arguments (after the EAL ones) */ + ret = parse_args(argc, argv); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Invalid distributor parameters\n"); + + if (rte_lcore_count() < 3) + rte_exit(EXIT_FAILURE, "Error, This application needs at " + "least 3 logical cores to run:\n" + "1 lcore for packet RX and distribution\n" + "1 lcore for packet TX\n" + "and at least 1 lcore for worker threads\n"); + + if (rte_eal_pci_probe() != 0) + rte_exit(EXIT_FAILURE, "Error with PCI probing\n"); + + nb_ports = rte_eth_dev_count(); + if (nb_ports == 0) + rte_exit(EXIT_FAILURE, "Error: no ethernet ports detected\n"); + if (nb_ports != 1 && (nb_ports & 1)) + rte_exit(EXIT_FAILURE, "Error: number of ports must be even, except " + "when using a single port\n"); + + mbuf_pool = rte_mempool_create("MBUF_POOL", NUM_MBUFS * 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"); + + nb_ports_available = nb_ports; + + /* 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); + nb_ports_available--; + continue; + } + /* init port */ + printf("Initializing port %u... done\n", (unsigned) portid); + + if (port_init(portid, mbuf_pool) != 0) + rte_exit(EXIT_FAILURE, "Cannot initialize port %"PRIu8"\n", + portid); + } + + if (!nb_ports_available) { + rte_exit(EXIT_FAILURE, + "All available ports are disabled. Please set portmask.\n"); + } + + d = rte_distributor_create("PKT_DIST", rte_socket_id(), + rte_lcore_count() - 2); + if (d == NULL) + rte_exit(EXIT_FAILURE, "Cannot create distributor\n"); + + /* scheduler ring is read only by the transmitter core, but written to + * by multiple threads + */ + output_ring = rte_ring_create("Output_ring", RTE_RING_SZ, + rte_socket_id(), RING_F_SC_DEQ); + if (output_ring == NULL) + rte_exit(EXIT_FAILURE, "Cannot create output ring\n"); + + RTE_LCORE_FOREACH_SLAVE(lcore_id) { + if (worker_id == rte_lcore_count() - 2) + rte_eal_remote_launch((lcore_function_t *)lcore_tx, + output_ring, lcore_id); + else { + struct lcore_params *p = + rte_malloc(NULL, sizeof(*p), 0); + if (!p) + rte_panic("malloc failure\n"); + *p = (struct lcore_params){worker_id, d, output_ring}; + rte_eal_remote_launch((lcore_function_t *)lcore_worker, + p, lcore_id); + } + worker_id++; + } + /* call lcore_main on master core only */ + struct lcore_params p = { 0, d, output_ring }; + lcore_rx(&p); + return 0; +} diff --git a/examples/distributor_app/main.h b/examples/distributor_app/main.h new file mode 100644 index 0000000..2682d15 --- /dev/null +++ b/examples/distributor_app/main.h @@ -0,0 +1,46 @@ +/*- + * 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 /* ifndef _MAIN_H_ */ -- 1.7.4.1
