Dear DPDK experts. Thank you very much for your best great efforts and precious answers.
When I run test-pmd, most of received packets are RX-error. The computer has two 10GbE ports Intel NIC and the two ports are loop-backed each other. The result shows that the loop-backed packets have rx-error occured from ethernet device port. The rx-error ( ierrors) seems to be counted by rte_eth_stats_get(uint8_t port_id, struct rte_eth_stats *stats) function in ~/dpdk/lib/librte_ether/rte_ethdev.c Then this rte_eth_stats_get() function calls (*dev->dev_ops->stats_get)(dev, stats); However, I can't find and trace the function (*dev->dev_ops->stats_get)(). Would you tell me how can I find the function? Would you tell me why this receive errors occurs for what reasons? I tested it in two xeon computers with different OS. Fedora 22 (linux kernel version 4.2.3-200.fc22.x86_64, DPDK 2.1.0). Ubuntu 14.04.1 LTS(linux kernel version : 3.13.0-34-generic, DPDK 2.1.0). Both experiments show the same result with rx-errors. I will really appreciate if I can be given any advice and answers. Thank you very much. Sincerely Yours, Ick-Sung Choi.