X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=examples%2Fip_fragmentation%2Fmain.c;fp=examples%2Fip_fragmentation%2Fmain.c;h=81a49187ae32236568ef5be0d2195b9451876075;hb=97f17497d162afdb82c8704bf097f0fee3724b2e;hp=0000000000000000000000000000000000000000;hpb=e04be89c2409570e0055b2cda60bd11395bb93b0;p=deb_dpdk.git diff --git a/examples/ip_fragmentation/main.c b/examples/ip_fragmentation/main.c new file mode 100644 index 00000000..81a49187 --- /dev/null +++ b/examples/ip_fragmentation/main.c @@ -0,0 +1,965 @@ +/*- + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#define RTE_LOGTYPE_IP_FRAG RTE_LOGTYPE_USER1 + +/* allow max jumbo frame 9.5 KB */ +#define JUMBO_FRAME_MAX_SIZE 0x2600 + +#define ROUNDUP_DIV(a, b) (((a) + (b) - 1) / (b)) + +/* + * Default byte size for the IPv6 Maximum Transfer Unit (MTU). + * This value includes the size of IPv6 header. + */ +#define IPV4_MTU_DEFAULT ETHER_MTU +#define IPV6_MTU_DEFAULT ETHER_MTU + +/* + * Default payload in bytes for the IPv6 packet. + */ +#define IPV4_DEFAULT_PAYLOAD (IPV4_MTU_DEFAULT - sizeof(struct ipv4_hdr)) +#define IPV6_DEFAULT_PAYLOAD (IPV6_MTU_DEFAULT - sizeof(struct ipv6_hdr)) + +/* + * Max number of fragments per packet expected - defined by config file. + */ +#define MAX_PACKET_FRAG RTE_LIBRTE_IP_FRAG_MAX_FRAG + +#define NB_MBUF 8192 + +#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]; + +#ifndef IPv4_BYTES +#define IPv4_BYTES_FMT "%" PRIu8 ".%" PRIu8 ".%" PRIu8 ".%" PRIu8 +#define IPv4_BYTES(addr) \ + (uint8_t) (((addr) >> 24) & 0xFF),\ + (uint8_t) (((addr) >> 16) & 0xFF),\ + (uint8_t) (((addr) >> 8) & 0xFF),\ + (uint8_t) ((addr) & 0xFF) +#endif + +#ifndef IPv6_BYTES +#define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\ + "%02x%02x:%02x%02x:%02x%02x:%02x%02x" +#define IPv6_BYTES(addr) \ + addr[0], addr[1], addr[2], addr[3], \ + addr[4], addr[5], addr[6], addr[7], \ + addr[8], addr[9], addr[10], addr[11],\ + addr[12], addr[13],addr[14], addr[15] +#endif + +#define IPV6_ADDR_LEN 16 + +/* 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]; +}; + +struct rx_queue { + struct rte_mempool *direct_pool; + struct rte_mempool *indirect_pool; + struct rte_lpm *lpm; + struct rte_lpm6 *lpm6; + uint8_t portid; +}; + +#define MAX_RX_QUEUE_PER_LCORE 16 +#define MAX_TX_QUEUE_PER_PORT 16 +struct lcore_queue_conf { + uint16_t n_rx_queue; + uint16_t tx_queue_id[RTE_MAX_ETHPORTS]; + struct rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE]; + 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 = 1, /**< IP checksum offload enabled */ + .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, + }, +}; + +/* + * IPv4 forwarding table + */ +struct l3fwd_ipv4_route { + uint32_t ip; + uint8_t depth; + uint8_t if_out; +}; + +struct l3fwd_ipv4_route l3fwd_ipv4_route_array[] = { + {IPv4(100,10,0,0), 16, 0}, + {IPv4(100,20,0,0), 16, 1}, + {IPv4(100,30,0,0), 16, 2}, + {IPv4(100,40,0,0), 16, 3}, + {IPv4(100,50,0,0), 16, 4}, + {IPv4(100,60,0,0), 16, 5}, + {IPv4(100,70,0,0), 16, 6}, + {IPv4(100,80,0,0), 16, 7}, +}; + +/* + * IPv6 forwarding table + */ + +struct l3fwd_ipv6_route { + uint8_t ip[IPV6_ADDR_LEN]; + uint8_t depth; + uint8_t if_out; +}; + +static struct l3fwd_ipv6_route l3fwd_ipv6_route_array[] = { + {{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 0}, + {{2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 1}, + {{3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 2}, + {{4,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 3}, + {{5,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 4}, + {{6,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 5}, + {{7,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 6}, + {{8,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 7}, +}; + +#define LPM_MAX_RULES 1024 +#define LPM6_MAX_RULES 1024 +#define LPM6_NUMBER_TBL8S (1 << 16) + +struct rte_lpm6_config lpm6_config = { + .max_rules = LPM6_MAX_RULES, + .number_tbl8s = LPM6_NUMBER_TBL8S, + .flags = 0 +}; + +static struct rte_mempool *socket_direct_pool[RTE_MAX_NUMA_NODES]; +static struct rte_mempool *socket_indirect_pool[RTE_MAX_NUMA_NODES]; +static struct rte_lpm *socket_lpm[RTE_MAX_NUMA_NODES]; +static struct rte_lpm6 *socket_lpm6[RTE_MAX_NUMA_NODES]; + +/* 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, struct lcore_queue_conf *qconf, + uint8_t queueid, uint8_t port_in) +{ + struct rx_queue *rxq; + uint32_t i, len, next_hop_ipv4; + uint8_t next_hop_ipv6, port_out, ipv6; + int32_t len2; + + ipv6 = 0; + rxq = &qconf->rx_queue_list[queueid]; + + /* by default, send everything back to the source port */ + port_out = port_in; + + /* Remove the Ethernet header and trailer from the input packet */ + rte_pktmbuf_adj(m, (uint16_t)sizeof(struct ether_hdr)); + + /* Build transmission burst */ + len = qconf->tx_mbufs[port_out].len; + + /* if this is an IPv4 packet */ + if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) { + struct ipv4_hdr *ip_hdr; + uint32_t ip_dst; + /* 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(rxq->lpm, ip_dst, &next_hop_ipv4) == 0 && + (enabled_port_mask & 1 << next_hop_ipv4) != 0) { + port_out = next_hop_ipv4; + + /* Build transmission burst for new port */ + len = qconf->tx_mbufs[port_out].len; + } + + /* if we don't need to do any fragmentation */ + if (likely (IPV4_MTU_DEFAULT >= m->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, + rxq->direct_pool, rxq->indirect_pool); + + /* Free input packet */ + rte_pktmbuf_free(m); + + /* If we fail to fragment the packet */ + if (unlikely (len2 < 0)) + return; + } + } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) { + /* if this is an IPv6 packet */ + struct ipv6_hdr *ip_hdr; + + ipv6 = 1; + + /* Read the lookup key (i.e. ip_dst) from the input packet */ + ip_hdr = rte_pktmbuf_mtod(m, struct ipv6_hdr *); + + /* Find destination port */ + if (rte_lpm6_lookup(rxq->lpm6, ip_hdr->dst_addr, &next_hop_ipv6) == 0 && + (enabled_port_mask & 1 << next_hop_ipv6) != 0) { + port_out = next_hop_ipv6; + + /* Build transmission burst for new port */ + len = qconf->tx_mbufs[port_out].len; + } + + /* if we don't need to do any fragmentation */ + if (likely (IPV6_MTU_DEFAULT >= m->pkt_len)) { + qconf->tx_mbufs[port_out].m_table[len] = m; + len2 = 1; + } else { + len2 = rte_ipv6_fragment_packet(m, + &qconf->tx_mbufs[port_out].m_table[len], + (uint16_t)(MBUF_TABLE_SIZE - len), + IPV6_MTU_DEFAULT, + rxq->direct_pool, rxq->indirect_pool); + + /* Free input packet */ + rte_pktmbuf_free(m); + + /* If we fail to fragment the packet */ + if (unlikely (len2 < 0)) + return; + } + } + /* else, just forward the packet */ + else { + qconf->tx_mbufs[port_out].m_table[len] = m; + len2 = 1; + } + + for (i = len; i < len + len2; i ++) { + void *d_addr_bytes; + + 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->l2_len = sizeof(struct ether_hdr); + + /* 02:00:00:00:00:xx */ + d_addr_bytes = ð_hdr->d_addr.addr_bytes[0]; + *((uint64_t *)d_addr_bytes) = 0x000000000002 + ((uint64_t)port_out << 40); + + /* src addr */ + ether_addr_copy(&ports_eth_addr[port_out], ð_hdr->s_addr); + if (ipv6) + eth_hdr->ether_type = rte_be_to_cpu_16(ETHER_TYPE_IPv6); + else + 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, IP_FRAG, "lcore %u has nothing to do\n", lcore_id); + return 0; + } + + RTE_LOG(INFO, IP_FRAG, "entering main loop on lcore %u\n", lcore_id); + + for (i = 0; i < qconf->n_rx_queue; i++) { + + portid = qconf->rx_queue_list[i].portid; + RTE_LOG(INFO, IP_FRAG, " -- 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].portid; + 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], qconf, i, portid); + } + + /* Forward remaining prefetched packets */ + for (; j < nb_rx; j++) { + l3fwd_simple_forward(pkts_burst[j], qconf, i, 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) +{ + char buf[ETHER_ADDR_FMT_SIZE]; + ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr); + printf("%s%s", name, buf); +} + +/* 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("\ndone\n"); + } + } +} + +static int +init_routing_table(void) +{ + struct rte_lpm *lpm; + struct rte_lpm6 *lpm6; + int socket, ret; + unsigned i; + + for (socket = 0; socket < RTE_MAX_NUMA_NODES; socket++) { + if (socket_lpm[socket]) { + lpm = socket_lpm[socket]; + /* populate the LPM table */ + for (i = 0; i < RTE_DIM(l3fwd_ipv4_route_array); i++) { + ret = rte_lpm_add(lpm, + l3fwd_ipv4_route_array[i].ip, + l3fwd_ipv4_route_array[i].depth, + l3fwd_ipv4_route_array[i].if_out); + + if (ret < 0) { + RTE_LOG(ERR, IP_FRAG, "Unable to add entry %i to the l3fwd " + "LPM table\n", i); + return -1; + } + + RTE_LOG(INFO, IP_FRAG, "Socket %i: adding route " IPv4_BYTES_FMT + "/%d (port %d)\n", + socket, + IPv4_BYTES(l3fwd_ipv4_route_array[i].ip), + l3fwd_ipv4_route_array[i].depth, + l3fwd_ipv4_route_array[i].if_out); + } + } + + if (socket_lpm6[socket]) { + lpm6 = socket_lpm6[socket]; + /* populate the LPM6 table */ + for (i = 0; i < RTE_DIM(l3fwd_ipv6_route_array); i++) { + ret = rte_lpm6_add(lpm6, + l3fwd_ipv6_route_array[i].ip, + l3fwd_ipv6_route_array[i].depth, + l3fwd_ipv6_route_array[i].if_out); + + if (ret < 0) { + RTE_LOG(ERR, IP_FRAG, "Unable to add entry %i to the l3fwd " + "LPM6 table\n", i); + return -1; + } + + RTE_LOG(INFO, IP_FRAG, "Socket %i: adding route " IPv6_BYTES_FMT + "/%d (port %d)\n", + socket, + IPv6_BYTES(l3fwd_ipv6_route_array[i].ip), + l3fwd_ipv6_route_array[i].depth, + l3fwd_ipv6_route_array[i].if_out); + } + } + } + return 0; +} + +static int +init_mem(void) +{ + char buf[PATH_MAX]; + struct rte_mempool *mp; + struct rte_lpm *lpm; + struct rte_lpm6 *lpm6; + struct rte_lpm_config lpm_config; + int socket; + unsigned lcore_id; + + /* traverse through lcores and initialize structures on each socket */ + + for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { + + if (rte_lcore_is_enabled(lcore_id) == 0) + continue; + + socket = rte_lcore_to_socket_id(lcore_id); + + if (socket == SOCKET_ID_ANY) + socket = 0; + + if (socket_direct_pool[socket] == NULL) { + RTE_LOG(INFO, IP_FRAG, "Creating direct mempool on socket %i\n", + socket); + snprintf(buf, sizeof(buf), "pool_direct_%i", socket); + + mp = rte_pktmbuf_pool_create(buf, NB_MBUF, 32, + 0, RTE_MBUF_DEFAULT_BUF_SIZE, socket); + if (mp == NULL) { + RTE_LOG(ERR, IP_FRAG, "Cannot create direct mempool\n"); + return -1; + } + socket_direct_pool[socket] = mp; + } + + if (socket_indirect_pool[socket] == NULL) { + RTE_LOG(INFO, IP_FRAG, "Creating indirect mempool on socket %i\n", + socket); + snprintf(buf, sizeof(buf), "pool_indirect_%i", socket); + + mp = rte_pktmbuf_pool_create(buf, NB_MBUF, 32, 0, 0, + socket); + if (mp == NULL) { + RTE_LOG(ERR, IP_FRAG, "Cannot create indirect mempool\n"); + return -1; + } + socket_indirect_pool[socket] = mp; + } + + if (socket_lpm[socket] == NULL) { + RTE_LOG(INFO, IP_FRAG, "Creating LPM table on socket %i\n", socket); + snprintf(buf, sizeof(buf), "IP_FRAG_LPM_%i", socket); + + lpm_config.max_rules = LPM_MAX_RULES; + lpm_config.number_tbl8s = 256; + lpm_config.flags = 0; + + lpm = rte_lpm_create(buf, socket, &lpm_config); + if (lpm == NULL) { + RTE_LOG(ERR, IP_FRAG, "Cannot create LPM table\n"); + return -1; + } + socket_lpm[socket] = lpm; + } + + if (socket_lpm6[socket] == NULL) { + RTE_LOG(INFO, IP_FRAG, "Creating LPM6 table on socket %i\n", socket); + snprintf(buf, sizeof(buf), "IP_FRAG_LPM_%i", socket); + + lpm6 = rte_lpm6_create("IP_FRAG_LPM6", socket, &lpm6_config); + if (lpm6 == NULL) { + RTE_LOG(ERR, IP_FRAG, "Cannot create LPM table\n"); + return -1; + } + socket_lpm6[socket] = lpm6; + } + } + + return 0; +} + +int +main(int argc, char **argv) +{ + struct lcore_queue_conf *qconf; + struct rte_eth_dev_info dev_info; + struct rte_eth_txconf *txconf; + struct rx_queue *rxq; + int socket, ret; + unsigned nb_ports; + 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"); + + nb_ports = rte_eth_dev_count(); + if (nb_ports > RTE_MAX_ETHPORTS) + nb_ports = RTE_MAX_ETHPORTS; + else if (nb_ports == 0) + rte_exit(EXIT_FAILURE, "No ports found!\n"); + + nb_lcores = rte_lcore_count(); + + /* initialize structures (mempools, lpm etc.) */ + if (init_mem() < 0) + rte_panic("Cannot initialize memory structures!\n"); + + /* check if portmask has non-existent ports */ + if (enabled_port_mask & ~(RTE_LEN2MASK(nb_ports, unsigned))) + rte_exit(EXIT_FAILURE, "Non-existent ports in portmask!\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("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]; + } + + socket = (int) rte_lcore_to_socket_id(rx_lcore_id); + if (socket == SOCKET_ID_ANY) + socket = 0; + + rxq = &qconf->rx_queue_list[qconf->n_rx_queue]; + rxq->portid = portid; + rxq->direct_pool = socket_direct_pool[socket]; + rxq->indirect_pool = socket_indirect_pool[socket]; + rxq->lpm = socket_lpm[socket]; + rxq->lpm6 = socket_lpm6[socket]; + 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) { + printf("\n"); + rte_exit(EXIT_FAILURE, "Cannot configure device: " + "err=%d, port=%d\n", + ret, portid); + } + + /* init one RX queue */ + ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, + socket, NULL, + socket_direct_pool[socket]); + if (ret < 0) { + printf("\n"); + rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: " + "err=%d, port=%d\n", + ret, portid); + } + + rte_eth_macaddr_get(portid, &ports_eth_addr[portid]); + print_ethaddr(" Address:", &ports_eth_addr[portid]); + printf("\n"); + + /* 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; + + socket = (int) rte_lcore_to_socket_id(lcore_id); + printf("txq=%u,%d ", lcore_id, queueid); + fflush(stdout); + + rte_eth_dev_info_get(portid, &dev_info); + txconf = &dev_info.default_txconf; + txconf->txq_flags = 0; + ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd, + socket, txconf); + if (ret < 0) { + printf("\n"); + 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++; + } + + printf("\n"); + } + + printf("\n"); + + /* start ports */ + for (portid = 0; portid < nb_ports; portid++) { + if ((enabled_port_mask & (1 << portid)) == 0) { + continue; + } + /* 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); + + rte_eth_promiscuous_enable(portid); + } + + if (init_routing_table() < 0) + rte_exit(EXIT_FAILURE, "Cannot init routing table\n"); + + check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask); + + /* 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; +}