diff options
Diffstat (limited to 'src/seastar/dpdk/examples/ipv4_multicast')
| -rw-r--r-- | src/seastar/dpdk/examples/ipv4_multicast/Makefile | 57 | ||||
| -rw-r--r-- | src/seastar/dpdk/examples/ipv4_multicast/main.c | 822 |
2 files changed, 879 insertions, 0 deletions
diff --git a/src/seastar/dpdk/examples/ipv4_multicast/Makefile b/src/seastar/dpdk/examples/ipv4_multicast/Makefile new file mode 100644 index 00000000..44f0a3bb --- /dev/null +++ b/src/seastar/dpdk/examples/ipv4_multicast/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 = ipv4_multicast + +# 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 diff --git a/src/seastar/dpdk/examples/ipv4_multicast/main.c b/src/seastar/dpdk/examples/ipv4_multicast/main.c new file mode 100644 index 00000000..96a4ab6e --- /dev/null +++ b/src/seastar/dpdk/examples/ipv4_multicast/main.c @@ -0,0 +1,822 @@ +/*- + * 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 <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_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_mempool.h> +#include <rte_mbuf.h> +#include <rte_malloc.h> +#include <rte_fbk_hash.h> +#include <rte_ip.h> + +#define RTE_LOGTYPE_IPv4_MULTICAST RTE_LOGTYPE_USER1 + +#define MAX_PORTS 16 + +#define MCAST_CLONE_PORTS 2 +#define MCAST_CLONE_SEGS 2 + +#define PKT_MBUF_DATA_SIZE RTE_MBUF_DEFAULT_BUF_SIZE +#define NB_PKT_MBUF 8192 + +#define HDR_MBUF_DATA_SIZE (2 * RTE_PKTMBUF_HEADROOM) +#define NB_HDR_MBUF (NB_PKT_MBUF * MAX_PORTS) + +#define NB_CLONE_MBUF (NB_PKT_MBUF * MCAST_CLONE_PORTS * MCAST_CLONE_SEGS * 2) + +/* allow max jumbo frame 9.5 KB */ +#define JUMBO_FRAME_MAX_SIZE 0x2600 + +#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 + +/* + * Construct Ethernet multicast address from IPv4 multicast address. + * Citing RFC 1112, section 6.4: + * "An IP host group address is mapped to an Ethernet multicast address + * by placing the low-order 23-bits of the IP address into the low-order + * 23 bits of the Ethernet multicast address 01-00-5E-00-00-00 (hex)." + */ +#define ETHER_ADDR_FOR_IPV4_MCAST(x) \ + (rte_cpu_to_be_64(0x01005e000000ULL | ((x) & 0x7fffff)) >> 16) + +/* + * 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[MAX_PORTS]; + +/* mask of enabled ports */ +static uint32_t enabled_port_mask = 0; + +static uint8_t nb_ports = 0; + +static int rx_queue_per_lcore = 1; + +struct mbuf_table { + uint16_t len; + struct rte_mbuf *m_table[MAX_PKT_BURST]; +}; + +#define MAX_RX_QUEUE_PER_LCORE 16 +#define MAX_TX_QUEUE_PER_PORT 16 +struct lcore_queue_conf { + uint64_t tx_tsc; + uint16_t n_rx_queue; + uint8_t rx_queue_list[MAX_RX_QUEUE_PER_LCORE]; + uint16_t tx_queue_id[MAX_PORTS]; + struct mbuf_table tx_mbufs[MAX_PORTS]; +} __rte_cache_aligned; +static struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; + +static 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 = 1, /**< CRC stripped by hardware */ + }, + .txmode = { + .mq_mode = ETH_MQ_TX_NONE, + }, +}; + +static struct rte_mempool *packet_pool, *header_pool, *clone_pool; + + +/* Multicast */ +static struct rte_fbk_hash_params mcast_hash_params = { + .name = "MCAST_HASH", + .entries = 1024, + .entries_per_bucket = 4, + .socket_id = 0, + .hash_func = NULL, + .init_val = 0, +}; + +struct rte_fbk_hash_table *mcast_hash = NULL; + +struct mcast_group_params { + uint32_t ip; + uint16_t port_mask; +}; + +static struct mcast_group_params mcast_group_table[] = { + {IPv4(224,0,0,101), 0x1}, + {IPv4(224,0,0,102), 0x2}, + {IPv4(224,0,0,103), 0x3}, + {IPv4(224,0,0,104), 0x4}, + {IPv4(224,0,0,105), 0x5}, + {IPv4(224,0,0,106), 0x6}, + {IPv4(224,0,0,107), 0x7}, + {IPv4(224,0,0,108), 0x8}, + {IPv4(224,0,0,109), 0x9}, + {IPv4(224,0,0,110), 0xA}, + {IPv4(224,0,0,111), 0xB}, + {IPv4(224,0,0,112), 0xC}, + {IPv4(224,0,0,113), 0xD}, + {IPv4(224,0,0,114), 0xE}, + {IPv4(224,0,0,115), 0xF}, +}; + +#define N_MCAST_GROUPS \ + (sizeof (mcast_group_table) / sizeof (mcast_group_table[0])) + + +/* Send burst of packets on an output interface */ +static void +send_burst(struct lcore_queue_conf *qconf, uint8_t port) +{ + struct rte_mbuf **m_table; + uint16_t n, queueid; + int ret; + + queueid = qconf->tx_queue_id[port]; + m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table; + n = qconf->tx_mbufs[port].len; + + ret = rte_eth_tx_burst(port, queueid, m_table, n); + while (unlikely (ret < n)) { + rte_pktmbuf_free(m_table[ret]); + ret++; + } + + qconf->tx_mbufs[port].len = 0; +} + +/* Get number of bits set. */ +static inline uint32_t +bitcnt(uint32_t v) +{ + uint32_t n; + + for (n = 0; v != 0; v &= v - 1, n++) + ; + + return n; +} + +/** + * Create the output multicast packet based on the given input packet. + * There are two approaches for creating outgoing packet, though both + * are based on data zero-copy idea, they differ in few details: + * First one creates a clone of the input packet, e.g - walk though all + * segments of the input packet, and for each of them create a new packet + * mbuf and attach that new mbuf to the segment (refer to rte_pktmbuf_clone() + * for more details). Then new mbuf is allocated for the packet header + * and is prepended to the 'clone' mbuf. + * Second approach doesn't make a clone, it just increment refcnt for all + * input packet segments. Then it allocates new mbuf for the packet header + * and prepends it to the input packet. + * Basically first approach reuses only input packet's data, but creates + * it's own copy of packet's metadata. Second approach reuses both input's + * packet data and metadata. + * The advantage of first approach - is that each outgoing packet has it's + * own copy of metadata, so we can safely modify data pointer of the + * input packet. That allows us to skip creation if the output packet for + * the last destination port, but instead modify input packet's header inplace, + * e.g: for N destination ports we need to invoke mcast_out_pkt (N-1) times. + * The advantage of second approach - less work for each outgoing packet, + * e.g: we skip "clone" operation completely. Though it comes with a price - + * input packet's metadata has to be intact. So for N destination ports we + * need to invoke mcast_out_pkt N times. + * So for small number of outgoing ports (and segments in the input packet) + * first approach will be faster. + * As number of outgoing ports (and/or input segments) will grow, + * second way will become more preferable. + * + * @param pkt + * Input packet mbuf. + * @param use_clone + * Control which of the two approaches described above should be used: + * - 0 - use second approach: + * Don't "clone" input packet. + * Prepend new header directly to the input packet + * - 1 - use first approach: + * Make a "clone" of input packet first. + * Prepend new header to the clone of the input packet + * @return + * - The pointer to the new outgoing packet. + * - NULL if operation failed. + */ +static inline struct rte_mbuf * +mcast_out_pkt(struct rte_mbuf *pkt, int use_clone) +{ + struct rte_mbuf *hdr; + + /* Create new mbuf for the header. */ + if (unlikely ((hdr = rte_pktmbuf_alloc(header_pool)) == NULL)) + return NULL; + + /* If requested, then make a new clone packet. */ + if (use_clone != 0 && + unlikely ((pkt = rte_pktmbuf_clone(pkt, clone_pool)) == NULL)) { + rte_pktmbuf_free(hdr); + return NULL; + } + + /* prepend new header */ + hdr->next = pkt; + + + /* update header's fields */ + hdr->pkt_len = (uint16_t)(hdr->data_len + pkt->pkt_len); + hdr->nb_segs = (uint8_t)(pkt->nb_segs + 1); + + /* copy metadata from source packet*/ + hdr->port = pkt->port; + hdr->vlan_tci = pkt->vlan_tci; + hdr->vlan_tci_outer = pkt->vlan_tci_outer; + hdr->tx_offload = pkt->tx_offload; + hdr->hash = pkt->hash; + + hdr->ol_flags = pkt->ol_flags; + + __rte_mbuf_sanity_check(hdr, 1); + return hdr; +} + +/* + * Write new Ethernet header to the outgoing packet, + * and put it into the outgoing queue for the given port. + */ +static inline void +mcast_send_pkt(struct rte_mbuf *pkt, struct ether_addr *dest_addr, + struct lcore_queue_conf *qconf, uint8_t port) +{ + struct ether_hdr *ethdr; + uint16_t len; + + /* Construct Ethernet header. */ + ethdr = (struct ether_hdr *)rte_pktmbuf_prepend(pkt, (uint16_t)sizeof(*ethdr)); + RTE_ASSERT(ethdr != NULL); + + ether_addr_copy(dest_addr, ðdr->d_addr); + ether_addr_copy(&ports_eth_addr[port], ðdr->s_addr); + ethdr->ether_type = rte_be_to_cpu_16(ETHER_TYPE_IPv4); + + /* Put new packet into the output queue */ + len = qconf->tx_mbufs[port].len; + qconf->tx_mbufs[port].m_table[len] = pkt; + qconf->tx_mbufs[port].len = ++len; + + /* Transmit packets */ + if (unlikely(MAX_PKT_BURST == len)) + send_burst(qconf, port); +} + +/* Multicast forward of the input packet */ +static inline void +mcast_forward(struct rte_mbuf *m, struct lcore_queue_conf *qconf) +{ + struct rte_mbuf *mc; + struct ipv4_hdr *iphdr; + uint32_t dest_addr, port_mask, port_num, use_clone; + int32_t hash; + uint8_t port; + union { + uint64_t as_int; + struct ether_addr as_addr; + } dst_eth_addr; + + /* Remove the Ethernet header from the input packet */ + iphdr = (struct ipv4_hdr *)rte_pktmbuf_adj(m, (uint16_t)sizeof(struct ether_hdr)); + RTE_ASSERT(iphdr != NULL); + + dest_addr = rte_be_to_cpu_32(iphdr->dst_addr); + + /* + * Check that it is a valid multicast address and + * we have some active ports assigned to it. + */ + if(!IS_IPV4_MCAST(dest_addr) || + (hash = rte_fbk_hash_lookup(mcast_hash, dest_addr)) <= 0 || + (port_mask = hash & enabled_port_mask) == 0) { + rte_pktmbuf_free(m); + return; + } + + /* Calculate number of destination ports. */ + port_num = bitcnt(port_mask); + + /* Should we use rte_pktmbuf_clone() or not. */ + use_clone = (port_num <= MCAST_CLONE_PORTS && + m->nb_segs <= MCAST_CLONE_SEGS); + + /* Mark all packet's segments as referenced port_num times */ + if (use_clone == 0) + rte_pktmbuf_refcnt_update(m, (uint16_t)port_num); + + /* construct destination ethernet address */ + dst_eth_addr.as_int = ETHER_ADDR_FOR_IPV4_MCAST(dest_addr); + + for (port = 0; use_clone != port_mask; port_mask >>= 1, port++) { + + /* Prepare output packet and send it out. */ + if ((port_mask & 1) != 0) { + if (likely ((mc = mcast_out_pkt(m, use_clone)) != NULL)) + mcast_send_pkt(mc, &dst_eth_addr.as_addr, + qconf, port); + else if (use_clone == 0) + rte_pktmbuf_free(m); + } + } + + /* + * If we making clone packets, then, for the last destination port, + * we can overwrite input packet's metadata. + */ + if (use_clone != 0) + mcast_send_pkt(m, &dst_eth_addr.as_addr, qconf, port); + else + rte_pktmbuf_free(m); +} + +/* Send burst of outgoing packet, if timeout expires. */ +static inline void +send_timeout_burst(struct lcore_queue_conf *qconf) +{ + uint64_t cur_tsc; + uint8_t portid; + const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US; + + cur_tsc = rte_rdtsc(); + if (likely (cur_tsc < qconf->tx_tsc + drain_tsc)) + return; + + for (portid = 0; portid < MAX_PORTS; portid++) { + if (qconf->tx_mbufs[portid].len != 0) + send_burst(qconf, portid); + } + qconf->tx_tsc = cur_tsc; +} + +/* main processing loop */ +static int +main_loop(__rte_unused void *dummy) +{ + struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; + unsigned lcore_id; + int i, j, nb_rx; + uint8_t portid; + struct lcore_queue_conf *qconf; + + lcore_id = rte_lcore_id(); + qconf = &lcore_queue_conf[lcore_id]; + + + if (qconf->n_rx_queue == 0) { + RTE_LOG(INFO, IPv4_MULTICAST, "lcore %u has nothing to do\n", + lcore_id); + return 0; + } + + RTE_LOG(INFO, IPv4_MULTICAST, "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, IPv4_MULTICAST, " -- lcoreid=%u portid=%d\n", + lcore_id, (int) portid); + } + + while (1) { + + /* + * 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 *)); + mcast_forward(pkts_burst[j], qconf); + } + + /* Forward remaining prefetched packets */ + for (; j < nb_rx; j++) { + mcast_forward(pkts_burst[j], qconf); + } + } + + /* Send out packets from TX queues */ + send_timeout_burst(qconf); + } +} + +/* 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 uint32_t +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 0; + + return (uint32_t)pm; +} + +static int +parse_nqueue(const char *q_arg) +{ + char *end = NULL; + unsigned long n; + + /* parse numerical string */ + errno = 0; + n = strtoul(q_arg, &end, 0); + if (errno != 0 || end == NULL || *end != '\0' || + n == 0 || 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; + + default: + print_usage(prgname); + return -1; + } + } + + if (optind >= 0) + argv[optind-1] = prgname; + + ret = optind-1; + optind = 1; /* reset getopt lib */ + return ret; +} + +static void +print_ethaddr(const char *name, struct ether_addr *eth_addr) +{ + char buf[ETHER_ADDR_FMT_SIZE]; + ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr); + printf("%s%s", name, buf); +} + +static int +init_mcast_hash(void) +{ + uint32_t i; + + mcast_hash_params.socket_id = rte_socket_id(); + mcast_hash = rte_fbk_hash_create(&mcast_hash_params); + if (mcast_hash == NULL){ + return -1; + } + + for (i = 0; i < N_MCAST_GROUPS; i ++){ + if (rte_fbk_hash_add_key(mcast_hash, + mcast_group_table[i].ip, + mcast_group_table[i].port_mask) < 0) { + return -1; + } + } + + return 0; +} + +/* 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 == ETH_LINK_DOWN) { + 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; + struct rte_eth_dev_info dev_info; + struct rte_eth_txconf *txconf; + int ret; + uint16_t queueid; + 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, "Invalid EAL parameters\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 IPV4_MULTICAST parameters\n"); + + /* create the mbuf pools */ + packet_pool = rte_pktmbuf_pool_create("packet_pool", NB_PKT_MBUF, 32, + 0, PKT_MBUF_DATA_SIZE, rte_socket_id()); + + if (packet_pool == NULL) + rte_exit(EXIT_FAILURE, "Cannot init packet mbuf pool\n"); + + header_pool = rte_pktmbuf_pool_create("header_pool", NB_HDR_MBUF, 32, + 0, HDR_MBUF_DATA_SIZE, rte_socket_id()); + + if (header_pool == NULL) + rte_exit(EXIT_FAILURE, "Cannot init header mbuf pool\n"); + + clone_pool = rte_pktmbuf_pool_create("clone_pool", NB_CLONE_MBUF, 32, + 0, 0, rte_socket_id()); + + if (clone_pool == NULL) + rte_exit(EXIT_FAILURE, "Cannot init clone mbuf pool\n"); + + nb_ports = rte_eth_dev_count(); + if (nb_ports == 0) + rte_exit(EXIT_FAILURE, "No physical ports!\n"); + if (nb_ports > MAX_PORTS) + nb_ports = MAX_PORTS; + + 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]; + + /* limit the frame size to the maximum supported by NIC */ + rte_eth_dev_info_get(portid, &dev_info); + port_conf.rxmode.max_rx_pkt_len = RTE_MIN( + dev_info.max_rx_pktlen, port_conf.rxmode.max_rx_pkt_len); + + /* 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 ++; + qconf = &lcore_queue_conf[rx_lcore_id]; + + if (rx_lcore_id >= RTE_MAX_LCORE) + rte_exit(EXIT_FAILURE, "Not enough cores\n"); + } + 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=%hu ", queueid); + fflush(stdout); + ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd, + rte_eth_dev_socket_id(portid), + NULL, + packet_pool); + 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; + + RTE_LCORE_FOREACH(lcore_id) { + if (rte_lcore_is_enabled(lcore_id) == 0) + continue; + printf("txq=%u,%hu ", lcore_id, queueid); + fflush(stdout); + + txconf = &dev_info.default_txconf; + txconf->txq_flags = 0; + ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd, + rte_lcore_to_socket_id(lcore_id), txconf); + 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:\n"); + } + + check_all_ports_link_status(nb_ports, enabled_port_mask); + + /* initialize the multicast hash */ + int retval = init_mcast_hash(); + if (retval != 0) + rte_exit(EXIT_FAILURE, "Cannot build the multicast hash\n"); + + /* 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; +} |