/*- * 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/common.h" /* * 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; #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */ /* mask of enabled ports */ static uint32_t l2fwd_ivshmem_enabled_port_mask = 0; static struct ether_addr l2fwd_ivshmem_ports_eth_addr[RTE_MAX_ETHPORTS]; #define NB_MBUF 8192 #define MAX_RX_QUEUE_PER_LCORE 16 #define MAX_TX_QUEUE_PER_PORT 16 struct lcore_queue_conf { unsigned n_rx_port; unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE]; struct vm_port_param * port_param[MAX_RX_QUEUE_PER_LCORE]; struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS]; struct mbuf_table rx_mbufs[RTE_MAX_ETHPORTS]; } __rte_cache_aligned; static struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; static const struct rte_eth_conf port_conf = { .rxmode = { .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 */ .hw_strip_crc = 0, /**< CRC stripped by hardware */ }, .txmode = { .mq_mode = ETH_MQ_TX_NONE, }, }; #define METADATA_NAME "l2fwd_ivshmem" #define CMDLINE_OPT_FWD_CONF "fwd-conf" #define QEMU_CMD_FMT "/tmp/ivshmem_qemu_cmdline_%s" struct port_statistics port_statistics[RTE_MAX_ETHPORTS]; struct rte_mempool * l2fwd_ivshmem_pktmbuf_pool = NULL; /* Print out statistics on packets dropped */ static void print_stats(void) { uint64_t total_packets_dropped, total_packets_tx, total_packets_rx; uint64_t total_vm_packets_dropped, total_vm_packets_tx, total_vm_packets_rx; unsigned portid; total_packets_dropped = 0; total_packets_tx = 0; total_packets_rx = 0; total_vm_packets_tx = 0; total_vm_packets_rx = 0; const char clr[] = { 27, '[', '2', 'J', '\0' }; const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' }; /* Clear screen and move to top left */ printf("%s%s", clr, topLeft); printf("\nPort statistics ===================================="); for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { /* skip disabled ports */ if ((l2fwd_ivshmem_enabled_port_mask & (1 << portid)) == 0) continue; printf("\nStatistics for port %u ------------------------------" "\nPackets sent: %24"PRIu64 "\nPackets received: %20"PRIu64 "\nPackets dropped: %21"PRIu64, portid, port_statistics[portid].tx, port_statistics[portid].rx, port_statistics[portid].dropped); total_packets_dropped += port_statistics[portid].dropped; total_packets_tx += port_statistics[portid].tx; total_packets_rx += port_statistics[portid].rx; } printf("\nVM statistics ======================================"); for (portid = 0; portid < ctrl->nb_ports; portid++) { printf("\nStatistics for port %u ------------------------------" "\nPackets sent: %24"PRIu64 "\nPackets received: %20"PRIu64, portid, ctrl->vm_ports[portid].stats.tx, ctrl->vm_ports[portid].stats.rx); total_vm_packets_dropped += ctrl->vm_ports[portid].stats.dropped; total_vm_packets_tx += ctrl->vm_ports[portid].stats.tx; total_vm_packets_rx += ctrl->vm_ports[portid].stats.rx; } printf("\nAggregate statistics ===============================" "\nTotal packets sent: %18"PRIu64 "\nTotal packets received: %14"PRIu64 "\nTotal packets dropped: %15"PRIu64 "\nTotal VM packets sent: %15"PRIu64 "\nTotal VM packets received: %11"PRIu64, total_packets_tx, total_packets_rx, total_packets_dropped, total_vm_packets_tx, total_vm_packets_rx); printf("\n====================================================\n"); } static int print_to_file(const char *cmdline, const char *config_name) { FILE *file; char path[PATH_MAX]; snprintf(path, sizeof(path), QEMU_CMD_FMT, config_name); file = fopen(path, "w"); if (file == NULL) { RTE_LOG(ERR, L2FWD_IVSHMEM, "Could not open '%s' \n", path); return -1; } RTE_LOG(DEBUG, L2FWD_IVSHMEM, "QEMU command line for config '%s': %s \n", config_name, cmdline); fprintf(file, "%s\n", cmdline); fclose(file); return 0; } static int generate_ivshmem_cmdline(const char *config_name) { char cmdline[PATH_MAX]; if (rte_ivshmem_metadata_cmdline_generate(cmdline, sizeof(cmdline), config_name) < 0) return -1; if (print_to_file(cmdline, config_name) < 0) return -1; rte_ivshmem_metadata_dump(stdout, config_name); return 0; } /* display usage */ static void l2fwd_ivshmem_usage(const char *prgname) { printf("%s [EAL options] -- -p PORTMASK [-q NQ -T PERIOD]\n" " -p PORTMASK: hexadecimal bitmask of ports to configure\n" " -q NQ: number of queue (=ports) per lcore (default is 1)\n" " -T PERIOD: statistics will be refreshed each PERIOD seconds " "(0 to disable, 10 default, 86400 maximum)\n", prgname); } static unsigned int l2fwd_ivshmem_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 0; if (n == 0) return 0; if (n >= MAX_RX_QUEUE_PER_LCORE) return 0; return n; } static int l2fwd_ivshmem_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 l2fwd_ivshmem_parse_timer_period(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; if (n >= MAX_TIMER_PERIOD) return -1; return n; } /* Parse the argument given in the command line of the application */ static int l2fwd_ivshmem_parse_args(int argc, char **argv) { int opt, ret; char **argvopt; int option_index; char *prgname = argv[0]; static struct option lgopts[] = { {CMDLINE_OPT_FWD_CONF, 1, 0, 0}, {NULL, 0, 0, 0} }; argvopt = argv; while ((opt = getopt_long(argc, argvopt, "q:p:T:", lgopts, &option_index)) != EOF) { switch (opt) { /* portmask */ case 'p': l2fwd_ivshmem_enabled_port_mask = l2fwd_ivshmem_parse_portmask(optarg); if (l2fwd_ivshmem_enabled_port_mask == 0) { printf("invalid portmask\n"); l2fwd_ivshmem_usage(prgname); return -1; } break; /* nqueue */ case 'q': l2fwd_ivshmem_rx_queue_per_lcore = l2fwd_ivshmem_parse_nqueue(optarg); if (l2fwd_ivshmem_rx_queue_per_lcore == 0) { printf("invalid queue number\n"); l2fwd_ivshmem_usage(prgname); return -1; } break; /* timer period */ case 'T': timer_period = l2fwd_ivshmem_parse_timer_period(optarg) * 1000 * TIMER_MILLISECOND; if (timer_period < 0) { printf("invalid timer period\n"); l2fwd_ivshmem_usage(prgname); return -1; } break; /* long options */ case 0: l2fwd_ivshmem_usage(prgname); return -1; default: l2fwd_ivshmem_usage(prgname); return -1; } } if (optind >= 0) argv[optind-1] = prgname; ret = optind-1; optind = 0; /* reset getopt lib */ return ret; } /* 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"); } } } /* Send the burst of packets on an output interface */ static int l2fwd_ivshmem_send_burst(struct lcore_queue_conf *qconf, unsigned n, uint8_t port) { struct rte_mbuf **m_table; unsigned ret; unsigned queueid =0; m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table; ret = rte_eth_tx_burst(port, (uint16_t) queueid, m_table, (uint16_t) n); port_statistics[port].tx += ret; if (unlikely(ret < n)) { port_statistics[port].dropped += (n - ret); do { rte_pktmbuf_free(m_table[ret]); } while (++ret < n); } return 0; } /* Enqueue packets for TX and prepare them to be sent on the network */ static int l2fwd_ivshmem_send_packet(struct rte_mbuf *m, uint8_t port) { unsigned lcore_id, len; struct lcore_queue_conf *qconf; lcore_id = rte_lcore_id(); qconf = &lcore_queue_conf[lcore_id]; len = qconf->tx_mbufs[port].len; qconf->tx_mbufs[port].m_table[len] = m; len++; /* enough pkts to be sent */ if (unlikely(len == MAX_PKT_BURST)) { l2fwd_ivshmem_send_burst(qconf, MAX_PKT_BURST, port); len = 0; } qconf->tx_mbufs[port].len = len; return 0; } static int l2fwd_ivshmem_receive_burst(struct lcore_queue_conf *qconf, unsigned portid, unsigned vm_port) { struct rte_mbuf ** m; struct rte_ring * rx; unsigned len, pkt_idx; m = qconf->rx_mbufs[portid].m_table; len = qconf->rx_mbufs[portid].len; rx = qconf->port_param[vm_port]->rx_ring; /* if enqueueing failed, ring is probably full, so drop the packets */ if (rte_ring_enqueue_bulk(rx, (void**) m, len) < 0) { port_statistics[portid].dropped += len; pkt_idx = 0; do { rte_pktmbuf_free(m[pkt_idx]); } while (++pkt_idx < len); } else /* increment rx stats by however many packets we managed to receive */ port_statistics[portid].rx += len; return 0; } /* Enqueue packets for RX and prepare them to be sent to VM */ static int l2fwd_ivshmem_receive_packets(struct rte_mbuf ** m, unsigned n, unsigned portid, unsigned vm_port) { unsigned lcore_id, len, pkt_idx; struct lcore_queue_conf *qconf; lcore_id = rte_lcore_id(); qconf = &lcore_queue_conf[lcore_id]; len = qconf->rx_mbufs[portid].len; pkt_idx = 0; /* enqueue packets */ while (pkt_idx < n && len < MAX_PKT_BURST * 2) { qconf->rx_mbufs[portid].m_table[len++] = m[pkt_idx++]; } /* increment queue len by however many packets we managed to receive */ qconf->rx_mbufs[portid].len += pkt_idx; /* drop the unreceived packets */ if (unlikely(pkt_idx < n)) { port_statistics[portid].dropped += n - pkt_idx; do { rte_pktmbuf_free(m[pkt_idx]); } while (++pkt_idx < n); } /* drain the queue halfway through the maximum capacity */ if (unlikely(qconf->rx_mbufs[portid].len >= MAX_PKT_BURST)) l2fwd_ivshmem_receive_burst(qconf, portid, vm_port); return 0; } /* loop for host forwarding mode. * the data flow is as follows: * 1) get packets from TX queue and send it out from a given port * 2) RX packets from given port and enqueue them on RX ring * 3) dequeue packets from TX ring and put them on TX queue for a given port */ static void fwd_loop(void) { struct rte_mbuf *pkts_burst[MAX_PKT_BURST * 2]; struct rte_mbuf *m; unsigned lcore_id; uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc; unsigned i, j, portid, nb_rx; struct lcore_queue_conf *qconf; struct rte_ring *tx; const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US; prev_tsc = 0; timer_tsc = 0; lcore_id = rte_lcore_id(); qconf = &lcore_queue_conf[lcore_id]; if (qconf->n_rx_port == 0) { RTE_LOG(INFO, L2FWD_IVSHMEM, "lcore %u has nothing to do\n", lcore_id); return; } RTE_LOG(INFO, L2FWD_IVSHMEM, "entering main loop on lcore %u\n", lcore_id); for (i = 0; i < qconf->n_rx_port; i++) { portid = qconf->rx_port_list[i]; RTE_LOG(INFO, L2FWD_IVSHMEM, " -- lcoreid=%u portid=%u\n", lcore_id, portid); } while (ctrl->state == STATE_FWD) { cur_tsc = rte_rdtsc(); /* * Burst queue drain */ diff_tsc = cur_tsc - prev_tsc; if (unlikely(diff_tsc > drain_tsc)) { /* * TX */ for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { if (qconf->tx_mbufs[portid].len == 0) continue; l2fwd_ivshmem_send_burst(qconf, qconf->tx_mbufs[portid].len, (uint8_t) portid); qconf->tx_mbufs[portid].len = 0; } /* * RX */ for (i = 0; i < qconf->n_rx_port; i++) { portid = qconf->rx_port_list[i]; if (qconf->rx_mbufs[portid].len == 0) continue; l2fwd_ivshmem_receive_burst(qconf, portid, i); qconf->rx_mbufs[portid].len = 0; } /* if timer is enabled */ if (timer_period > 0) { /* advance the timer */ timer_tsc += diff_tsc; /* if timer has reached its timeout */ if (unlikely(timer_tsc >= (uint64_t) timer_period)) { /* do this only on master core */ if (lcore_id == rte_get_master_lcore()) { print_stats(); /* reset the timer */ timer_tsc = 0; } } } prev_tsc = cur_tsc; } /* * packet RX and forwarding */ for (i = 0; i < qconf->n_rx_port; i++) { /* RX packets from port and put them on RX ring */ portid = qconf->rx_port_list[i]; nb_rx = rte_eth_rx_burst((uint8_t) portid, 0, pkts_burst, MAX_PKT_BURST); if (nb_rx != 0) l2fwd_ivshmem_receive_packets(pkts_burst, nb_rx, portid, i); /* dequeue packets from TX ring and send them to TX queue */ tx = qconf->port_param[i]->tx_ring; nb_rx = rte_ring_count(tx); nb_rx = RTE_MIN(nb_rx, (unsigned) MAX_PKT_BURST); if (nb_rx == 0) continue; /* should not happen */ if (unlikely(rte_ring_dequeue_bulk(tx, (void**) pkts_burst, nb_rx) < 0)) { ctrl->state = STATE_FAIL; return; } for (j = 0; j < nb_rx; j++) { m = pkts_burst[j]; l2fwd_ivshmem_send_packet(m, portid); } } } } static int l2fwd_ivshmem_launch_one_lcore(__attribute__((unused)) void *dummy) { fwd_loop(); return 0; } int main(int argc, char **argv) { char name[RTE_RING_NAMESIZE]; struct rte_ring *r; struct lcore_queue_conf *qconf; struct rte_eth_dev_info dev_info; uint8_t portid, port_nr; uint8_t nb_ports, nb_ports_available; uint8_t nb_ports_in_mask; int ret; unsigned lcore_id, rx_lcore_id; /* init EAL */ ret = rte_eal_init(argc, argv); if (ret < 0) rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n"); argc -= ret; argv += ret; /* parse application arguments (after the EAL ones) */ ret = l2fwd_ivshmem_parse_args(argc, argv); if (ret < 0) rte_exit(EXIT_FAILURE, "Invalid l2fwd-ivshmem arguments\n"); /* create a shared mbuf pool */ l2fwd_ivshmem_pktmbuf_pool = rte_pktmbuf_pool_create(MBUF_MP_NAME, NB_MBUF, 32, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id()); if (l2fwd_ivshmem_pktmbuf_pool == NULL) rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); nb_ports = rte_eth_dev_count(); if (nb_ports == 0) rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); /* * reserve memzone to communicate with VMs - we cannot use rte_malloc here * because while it is technically possible, it is a very bad idea to share * the heap between two primary processes. */ ctrl_mz = rte_memzone_reserve(CTRL_MZ_NAME, sizeof(struct ivshmem_ctrl), SOCKET_ID_ANY, 0); if (ctrl_mz == NULL) rte_exit(EXIT_FAILURE, "Cannot reserve control memzone\n"); ctrl = (struct ivshmem_ctrl*) ctrl_mz->addr; memset(ctrl, 0, sizeof(struct ivshmem_ctrl)); /* * Each port is assigned an output port. */ nb_ports_in_mask = 0; for (portid = 0; portid < nb_ports; portid++) { /* skip ports that are not enabled */ if ((l2fwd_ivshmem_enabled_port_mask & (1 << portid)) == 0) continue; if (portid % 2) { ctrl->vm_ports[nb_ports_in_mask].dst = &ctrl->vm_ports[nb_ports_in_mask-1]; ctrl->vm_ports[nb_ports_in_mask-1].dst = &ctrl->vm_ports[nb_ports_in_mask]; } nb_ports_in_mask++; rte_eth_dev_info_get(portid, &dev_info); } if (nb_ports_in_mask % 2) { printf("Notice: odd number of ports in portmask.\n"); ctrl->vm_ports[nb_ports_in_mask-1].dst = &ctrl->vm_ports[nb_ports_in_mask-1]; } rx_lcore_id = 0; qconf = NULL; printf("Initializing ports configuration...\n"); nb_ports_available = nb_ports; /* Initialise each port */ for (portid = 0; portid < nb_ports; portid++) { /* skip ports that are not enabled */ if ((l2fwd_ivshmem_enabled_port_mask & (1 << portid)) == 0) { printf("Skipping disabled port %u\n", (unsigned) portid); nb_ports_available--; continue; } /* init port */ printf("Initializing port %u... ", (unsigned) portid); fflush(stdout); ret = rte_eth_dev_configure(portid, 1, 1, &port_conf); if (ret < 0) rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n", ret, (unsigned) portid); rte_eth_macaddr_get(portid,&l2fwd_ivshmem_ports_eth_addr[portid]); /* init one RX queue */ fflush(stdout); ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, rte_eth_dev_socket_id(portid), NULL, l2fwd_ivshmem_pktmbuf_pool); if (ret < 0) rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n", ret, (unsigned) portid); /* init one TX queue on each port */ fflush(stdout); ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, rte_eth_dev_socket_id(portid), NULL); if (ret < 0) rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n", ret, (unsigned) portid); /* Start device */ ret = rte_eth_dev_start(portid); if (ret < 0) rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n", ret, (unsigned) portid); printf("done: \n"); rte_eth_promiscuous_enable(portid); printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n", (unsigned) portid, l2fwd_ivshmem_ports_eth_addr[portid].addr_bytes[0], l2fwd_ivshmem_ports_eth_addr[portid].addr_bytes[1], l2fwd_ivshmem_ports_eth_addr[portid].addr_bytes[2], l2fwd_ivshmem_ports_eth_addr[portid].addr_bytes[3], l2fwd_ivshmem_ports_eth_addr[portid].addr_bytes[4], l2fwd_ivshmem_ports_eth_addr[portid].addr_bytes[5]); /* initialize port stats */ memset(&port_statistics, 0, sizeof(port_statistics)); } if (!nb_ports_available) { rte_exit(EXIT_FAILURE, "All available ports are disabled. Please set portmask.\n"); } port_nr = 0; /* Initialize the port/queue configuration of each logical core */ for (portid = 0; portid < nb_ports; portid++) { if ((l2fwd_ivshmem_enabled_port_mask & (1 << portid)) == 0) continue; /* get the lcore_id for this port */ while (rte_lcore_is_enabled(rx_lcore_id) == 0 || lcore_queue_conf[rx_lcore_id].n_rx_port == l2fwd_ivshmem_rx_queue_per_lcore) { rx_lcore_id++; if (rx_lcore_id >= RTE_MAX_LCORE) rte_exit(EXIT_FAILURE, "Not enough cores\n"); } if (qconf != &lcore_queue_conf[rx_lcore_id]) /* Assigned a new logical core in the loop above. */ qconf = &lcore_queue_conf[rx_lcore_id]; rte_eth_macaddr_get(portid, &ctrl->vm_ports[port_nr].ethaddr); qconf->rx_port_list[qconf->n_rx_port] = portid; qconf->port_param[qconf->n_rx_port] = &ctrl->vm_ports[port_nr]; qconf->n_rx_port++; port_nr++; printf("Lcore %u: RX port %u\n", rx_lcore_id, (unsigned) portid); } check_all_ports_link_status(nb_ports_available, l2fwd_ivshmem_enabled_port_mask); /* create rings for each VM port (several ports can be on the same VM). * note that we store the pointers in ctrl - that way, they are the same * and valid across all VMs because ctrl is also in DPDK memory */ for (portid = 0; portid < nb_ports_available; portid++) { /* RX ring. SP/SC because it's only used by host and a single VM */ snprintf(name, sizeof(name), "%s%i", RX_RING_PREFIX, portid); r = rte_ring_create(name, NB_MBUF, SOCKET_ID_ANY, RING_F_SP_ENQ | RING_F_SC_DEQ); if (r == NULL) rte_exit(EXIT_FAILURE, "Cannot create ring %s\n", name); ctrl->vm_ports[portid].rx_ring = r; /* TX ring. SP/SC because it's only used by host and a single VM */ snprintf(name, sizeof(name), "%s%i", TX_RING_PREFIX, portid); r = rte_ring_create(name, NB_MBUF, SOCKET_ID_ANY, RING_F_SP_ENQ | RING_F_SC_DEQ); if (r == NULL) rte_exit(EXIT_FAILURE, "Cannot create ring %s\n", name); ctrl->vm_ports[portid].tx_ring = r; } /* create metadata, output cmdline */ if (rte_ivshmem_metadata_create(METADATA_NAME) < 0) rte_exit(EXIT_FAILURE, "Cannot create IVSHMEM metadata\n"); if (rte_ivshmem_metadata_add_memzone(ctrl_mz, METADATA_NAME)) rte_exit(EXIT_FAILURE, "Cannot add memzone to IVSHMEM metadata\n"); if (rte_ivshmem_metadata_add_mempool(l2fwd_ivshmem_pktmbuf_pool, METADATA_NAME)) rte_exit(EXIT_FAILURE, "Cannot add mbuf mempool to IVSHMEM metadata\n"); for (portid = 0; portid < nb_ports_available; portid++) { if (rte_ivshmem_metadata_add_ring(ctrl->vm_ports[portid].rx_ring, METADATA_NAME) < 0) rte_exit(EXIT_FAILURE, "Cannot add ring %s to IVSHMEM metadata\n", ctrl->vm_ports[portid].rx_ring->name); if (rte_ivshmem_metadata_add_ring(ctrl->vm_ports[portid].tx_ring, METADATA_NAME) < 0) rte_exit(EXIT_FAILURE, "Cannot add ring %s to IVSHMEM metadata\n", ctrl->vm_ports[portid].tx_ring->name); } generate_ivshmem_cmdline(METADATA_NAME); ctrl->nb_ports = nb_ports_available; printf("Waiting for VM to initialize...\n"); /* wait for VM to initialize */ while (ctrl->state != STATE_FWD) { if (ctrl->state == STATE_FAIL) rte_exit(EXIT_FAILURE, "VM reported failure\n"); sleep(1); } printf("Done!\n"); sigsetup(); /* launch per-lcore init on every lcore */ rte_eal_mp_remote_launch(l2fwd_ivshmem_launch_one_lcore, NULL, CALL_MASTER); RTE_LCORE_FOREACH_SLAVE(lcore_id) { if (rte_eal_wait_lcore(lcore_id) < 0) return -1; } if (ctrl->state == STATE_FAIL) rte_exit(EXIT_FAILURE, "VM reported failure\n"); return 0; }