rte_eth_tx_burst无法发送数据包
rte_eth_tx_burst无法发送数据包
提问于 2022-04-21 11:09:17
一个dpdk应用程序，它生成少量的arp请求包并调用rte_eth_tx_burst将它们发送出去，一些数据包没有被对等NIC端口接收(这可以通过使用wireshark从对等NIC捕获数据包来确认)，dpdk-proc-info显示没有错误计数。但是在调用rte_eth_tx_burst之前让应用程序休眠10，它可以发送所有的数据包.
示例代码：
main(){
port_init();
sleep(10);
gen_pkt(mbuf);
rte_eth_tx_burst(mbuf);
}系统设置:Ubuntu20.04.2LTS，dpdk-稳定-20.11.3，I350千兆网络连接1521，igb_uio驱动程序
root@k8s-node:/home/dpdk-stable-20.11.3/build/app# ./dpdk-proc-info -- --xstats
EAL: No legacy callbacks, legacy socket not created
###### NIC extended statistics for port 0 #########
####################################################
rx_good_packets: 10
tx_good_packets: 32
rx_good_bytes: 1203
tx_good_bytes: 1920
rx_missed_errors: 0
rx_errors: 0
tx_errors: 0
rx_mbuf_allocation_errors: 0
rx_q0_packets: 0
rx_q0_bytes: 0
rx_q0_errors: 0
tx_q0_packets: 0
tx_q0_bytes: 0
rx_crc_errors: 0
rx_align_errors: 0
rx_symbol_errors: 0
rx_missed_packets: 0
tx_single_collision_packets: 0
tx_multiple_collision_packets: 0
tx_excessive_collision_packets: 0
tx_late_collisions: 0
tx_total_collisions: 0
tx_deferred_packets: 0
tx_no_carrier_sense_packets: 0
rx_carrier_ext_errors: 0
rx_length_errors: 0
rx_xon_packets: 0
tx_xon_packets: 0
rx_xoff_packets: 0
tx_xoff_packets: 0
rx_flow_control_unsupported_packets: 0
rx_size_64_packets: 4
rx_size_65_to_127_packets: 3
rx_size_128_to_255_packets: 3
rx_size_256_to_511_packets: 0
rx_size_512_to_1023_packets: 0
rx_size_1024_to_max_packets: 0
rx_broadcast_packets: 0
rx_multicast_packets: 10
rx_undersize_errors: 0
rx_fragment_errors: 0
rx_oversize_errors: 0
rx_jabber_errors: 0
rx_management_packets: 0
rx_management_dropped: 0
tx_management_packets: 0
rx_total_packets: 10
tx_total_packets: 32
rx_total_bytes: 1203
tx_total_bytes: 1920
tx_size_64_packets: 32
tx_size_65_to_127_packets: 0
tx_size_128_to_255_packets: 0
tx_size_256_to_511_packets: 0
tx_size_512_to_1023_packets: 0
tx_size_1023_to_max_packets: 0
tx_multicast_packets: 0
tx_broadcast_packets: 32
tx_tso_packets: 0
tx_tso_errors: 0
rx_sent_to_host_packets: 0
tx_sent_by_host_packets: 0
rx_code_violation_packets: 0
interrupt_assert_count: 0
####################################################
root@k8s-node:/home/dpdk-stable-20.11.3/build/app# ./dpdk-proc-info -- --stats
EAL: No legacy callbacks, legacy socket not created
######################## NIC statistics for port 0 ########################
RX-packets: 5 RX-errors: 0 RX-bytes: 785
RX-nombuf: 0
TX-packets: 32 TX-errors: 0 TX-bytes: 1920
Stats reg 0 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 1 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 2 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 3 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 4 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 5 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 6 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 7 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 8 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 9 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 10 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 11 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 12 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 13 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 14 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 15 RX-packets: 0 RX-errors: 0 RX-bytes: 0
Stats reg 0 TX-packets: 0 TX-bytes: 0
Stats reg 1 TX-packets: 0 TX-bytes: 0
Stats reg 2 TX-packets: 0 TX-bytes: 0
Stats reg 3 TX-packets: 0 TX-bytes: 0
Stats reg 4 TX-packets: 0 TX-bytes: 0
Stats reg 5 TX-packets: 0 TX-bytes: 0
Stats reg 6 TX-packets: 0 TX-bytes: 0
Stats reg 7 TX-packets: 0 TX-bytes: 0
Stats reg 8 TX-packets: 0 TX-bytes: 0
Stats reg 9 TX-packets: 0 TX-bytes: 0
Stats reg 10 TX-packets: 0 TX-bytes: 0
Stats reg 11 TX-packets: 0 TX-bytes: 0
Stats reg 12 TX-packets: 0 TX-bytes: 0
Stats reg 13 TX-packets: 0 TX-bytes: 0
Stats reg 14 TX-packets: 0 TX-bytes: 0
Stats reg 15 TX-packets: 0 TX-bytes: 0
############################################################################更新：
谢谢你的回复，我修改了密码：
main(){
uint32_t port_mask = 0x1;
port_init();
check_all_ports_link_status(port_mask);
gen_pkt(mbuf);
rte_eth_tx_burst(mbuf);
}拿到了打印日志：
Checking link status...............................
done
Port0 Link Up. Speed 1000 Mbps - full-duplex我认为NIC应该已经完全实现了，但是对等NIC端口仍然漏掉了很多数据包。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/71953440
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