void pktgen_reset(port_info_t * info)
{
uint32_t s;
if ( info == NULL )
info = &pktgen.info[0];
pktgen_stop_transmitting(info);
pktgen.flags &= ~MAC_FROM_ARP_FLAG;
// Make sure the port is active and enabled.
if ( info->seq_pkt ) {
info->seq_pkt[SINGLE_PKT].pktSize = MIN_PKT_SIZE;
for (s = 0; s < NUM_TOTAL_PKTS; s++)
pktgen_port_defaults(info->pid, s);
pktgen_range_setup(info);
pktgen_clear_stats(info);
}
pktgen.flags &= ~PRINT_LABELS_FLAG;
pktgen_update_display();
}
void pktgen_config_ports(void)
{
uint32_t lid, pid, i, s, q, sid;
rxtx_t rt;
pkt_seq_t * pkt;
port_info_t * info;
char buff[RTE_MEMZONE_NAMESIZE];
int32_t ret, cache_size;
char output_buff[256] = { 0 };
// Find out the total number of ports in the system.
// We have already blacklisted the ones we needed to in main routine.
pktgen.nb_ports = rte_eth_dev_count();
if (pktgen.nb_ports > RTE_MAX_ETHPORTS)
pktgen.nb_ports = RTE_MAX_ETHPORTS;
if ( pktgen.nb_ports == 0 )
pktgen_log_panic("*** Did not find any ports to use ***");
pktgen.starting_port = 0;
// Setup the number of ports to display at a time
if ( pktgen.nb_ports > pktgen.nb_ports_per_page )
pktgen.ending_port = pktgen.starting_port + pktgen.nb_ports_per_page;
else
pktgen.ending_port = pktgen.starting_port + pktgen.nb_ports;
wr_port_matrix_dump(pktgen.l2p);
pktgen_log_info("Configuring %d ports, MBUF Size %d, MBUF Cache Size %d",
pktgen.nb_ports, MBUF_SIZE, MBUF_CACHE_SIZE);
// For each lcore setup each port that is handled by that lcore.
for(lid = 0; lid < RTE_MAX_LCORE; lid++) {
if ( wr_get_map(pktgen.l2p, RTE_MAX_ETHPORTS, lid) == 0 )
continue;
// For each port attached or handled by the lcore
for(pid = 0; pid < pktgen.nb_ports; pid++) {
// If non-zero then this port is handled by this lcore.
if ( wr_get_map(pktgen.l2p, pid, lid) == 0 )
continue;
wr_set_port_private(pktgen.l2p, pid, &pktgen.info[pid]);
pktgen.info[pid].pid = pid;
}
}
wr_dump_l2p(pktgen.l2p);
pktgen.total_mem_used = 0;
for(pid = 0; pid < pktgen.nb_ports; pid++) {
// Skip if we do not have any lcores attached to a port.
if ( (rt.rxtx = wr_get_map(pktgen.l2p, pid, RTE_MAX_LCORE)) == 0 )
continue;
pktgen.port_cnt++;
snprintf(output_buff, sizeof(output_buff),
"Initialize Port %d -- TxQ %d, RxQ %d", pid, rt.tx, rt.rx);
info = wr_get_port_private(pktgen.l2p, pid);
// Create the pkt header structures for transmitting sequence of packets.
snprintf(buff, sizeof(buff), "seq_hdr_%d", pid);
info->seq_pkt = (pkt_seq_t *)rte_zmalloc(buff, (sizeof(pkt_seq_t) * NUM_TOTAL_PKTS), RTE_CACHE_LINE_SIZE);
if ( info->seq_pkt == NULL )
pktgen_log_panic("Unable to allocate %d pkt_seq_t headers", NUM_TOTAL_PKTS);
info->seqIdx = 0;
info->seqCnt = 0;
info->nb_mbufs = MAX_MBUFS_PER_PORT;
cache_size = (info->nb_mbufs > RTE_MEMPOOL_CACHE_MAX_SIZE)?
RTE_MEMPOOL_CACHE_MAX_SIZE : info->nb_mbufs;
pktgen_port_conf_setup(pid, &rt, &default_port_conf);
if ( (ret = rte_eth_dev_configure(pid, rt.rx, rt.tx, &info->port_conf)) < 0)
pktgen_log_panic("Cannot configure device: port=%d, Num queues %d,%d (%d)%s",
pid, rt.rx, rt.tx, errno, rte_strerror(-ret));
pkt = &info->seq_pkt[SINGLE_PKT];
// Grab the source MAC addresses */
rte_eth_macaddr_get(pid, &pkt->eth_src_addr);
pktgen_log_info("%s, Src MAC %02x:%02x:%02x:%02x:%02x:%02x", output_buff,
pkt->eth_src_addr.addr_bytes[0],
pkt->eth_src_addr.addr_bytes[1],
pkt->eth_src_addr.addr_bytes[2],
pkt->eth_src_addr.addr_bytes[3],
pkt->eth_src_addr.addr_bytes[4],
pkt->eth_src_addr.addr_bytes[5]);
// Copy the first Src MAC address in SINGLE_PKT to the rest of the sequence packets.
for (i = 0; i < NUM_SEQ_PKTS; i++)
ethAddrCopy( &info->seq_pkt[i].eth_src_addr, &pkt->eth_src_addr );
pktgen.mem_used = 0;
for(q = 0; q < rt.rx; q++) {
// grab the socket id value based on the lcore being used.
sid = rte_lcore_to_socket_id(wr_get_port_lid(pktgen.l2p, pid, q));
// Create and initialize the default Receive buffers.
info->q[q].rx_mp = pktgen_mbuf_pool_create("Default RX", pid, q, info->nb_mbufs, sid, cache_size);
if ( info->q[q].rx_mp == NULL )
pktgen_log_panic("Cannot init port %d for Default RX mbufs", pid);
ret = rte_eth_rx_queue_setup(pid, q, pktgen.nb_rxd, sid, &info->rx_conf, pktgen.info[pid].q[q].rx_mp);
if (ret < 0)
pktgen_log_panic("rte_eth_rx_queue_setup: err=%d, port=%d, %s", ret, pid, rte_strerror(-ret));
}
pktgen_log_info("");
for(q = 0; q < rt.tx; q++) {
// grab the socket id value based on the lcore being used.
sid = rte_lcore_to_socket_id(wr_get_port_lid(pktgen.l2p, pid, q));
// Create and initialize the default Transmit buffers.
info->q[q].tx_mp = pktgen_mbuf_pool_create("Default TX", pid, q, MAX_MBUFS_PER_PORT, sid, cache_size);
if ( info->q[q].tx_mp == NULL )
pktgen_log_panic("Cannot init port %d for Default TX mbufs", pid);
// Create and initialize the range Transmit buffers.
info->q[q].range_mp = pktgen_mbuf_pool_create("Range TX", pid, q, MAX_MBUFS_PER_PORT, sid, 0);
if ( info->q[q].range_mp == NULL )
pktgen_log_panic("Cannot init port %d for Range TX mbufs", pid);
// Create and initialize the sequence Transmit buffers.
info->q[q].seq_mp = pktgen_mbuf_pool_create("Sequence TX", pid, q, MAX_MBUFS_PER_PORT, sid, cache_size);
if ( info->q[q].seq_mp == NULL )
pktgen_log_panic("Cannot init port %d for Sequence TX mbufs", pid);
// Used for sending special packets like ARP requests
info->q[q].special_mp = pktgen_mbuf_pool_create("Special TX", pid, q, MAX_SPECIAL_MBUFS, sid, cache_size);
if (info->q[q].special_mp == NULL)
pktgen_log_panic("Cannot init port %d for Special TX mbufs", pid);
// Setup the PCAP file for each port
if ( pktgen.info[pid].pcap != NULL ) {
if ( pktgen_pcap_parse(pktgen.info[pid].pcap, info, q) == -1 )
pktgen_log_panic("Cannot load PCAP file for port %d", pid);
}
// Find out the link speed to program the WTHRESH value correctly.
pktgen_get_link_status(info, pid, 0);
//info->tx_conf.tx_thresh.wthresh = (info->link.link_speed == 1000)? TX_WTHRESH_1GB : TX_WTHRESH;
ret = rte_eth_tx_queue_setup(pid, q, pktgen.nb_txd, sid, &info->tx_conf);
if (ret < 0)
pktgen_log_panic("rte_eth_tx_queue_setup: err=%d, port=%d, %s", ret, pid, rte_strerror(-ret));
#if 0
ret = rte_eth_dev_flow_ctrl_set(pid, &fc_conf);
if (ret < 0)
pktgen_log_panic("rte_eth_dev_flow_ctrl_set: err=%d, port=%d, %s", ret, pid, rte_strerror(-ret));
#endif
pktgen_log_info("");
}
pktgen_log_info("%*sPort memory used = %6lu KB", 71, " ", (pktgen.mem_used + 1023)/1024);
}
pktgen_log_info("%*sTotal memory used = %6lu KB", 70, " ", (pktgen.total_mem_used + 1023)/1024);
// Start up the ports and display the port Link status
for(pid = 0; pid < pktgen.nb_ports; pid++) {
if ( wr_get_map(pktgen.l2p, pid, RTE_MAX_LCORE) == 0 )
continue;
info = wr_get_port_private(pktgen.l2p, pid);
/* Start device */
if ( (ret = rte_eth_dev_start(pid)) < 0 )
pktgen_log_panic("rte_eth_dev_start: port=%d, %s", pid, rte_strerror(-ret));
pktgen_get_link_status(info, pid, 1);
if (info->link.link_status) {
snprintf(output_buff, sizeof(output_buff), "Port %2d: Link Up - speed %u Mbps - %s", pid,
(uint32_t) info->link.link_speed,
(info->link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
("full-duplex") : ("half-duplex"));
} else
snprintf(output_buff, sizeof(output_buff), "Port %2d: Link Down", pid);
// If enabled, put device in promiscuous mode.
if (pktgen.flags & PROMISCUOUS_ON_FLAG) {
strncatf(output_buff, " <Enable promiscuous mode>");
rte_eth_promiscuous_enable(pid);
}
pktgen_log_info("%s", output_buff);
pktgen.info[pid].seq_pkt[SINGLE_PKT].pktSize = MIN_PKT_SIZE;
// Setup the port and packet defaults. (must be after link speed is found)
for (s = 0; s < NUM_TOTAL_PKTS; s++)
pktgen_port_defaults(pid, s);
pktgen_range_setup(info);
pktgen_rnd_bits_init(&pktgen.info[pid].rnd_bitfields);
}
pktgen_log_info("");
for (sid = 0; sid < wr_coremap_cnt(pktgen.core_info, pktgen.core_cnt, 0); sid++)
pktgen_packet_capture_init(&pktgen.capture[sid], sid);
}