Hi all, I'm trying to run the Flow Filtering application[1] with DPDK 23.11.1 on Ubuntu 20.04 with Intel i210 NIC. Since i210 doesn't support IPv4 filtering, I removed the related code and made it print all received packets as a simple receiver.
Then I noticed: - launch this receiver program on one machine - on another machine (connected back-to-back), a program sends UDP packets in a while loop - wait for several seconds, SIGINT the sender, then SIGINT receiver later - relaunch the receiver, the program print several previous UDP packets, even I'm not running the sender now I'm new to DPDK but I guess that I'm quitting receiver first, so when the NIC keeps receiving the packets and "marks" it ready, it has no chance for `rte_eth_rx_burst` when doing the exciting routine after SIGINT. However I'm expecting that after `rte_eth_dev_stop/close`, the previously marked packets should be cleared. What could go wrong here? Or should I clear it manually after launching? I tried igb_uio and vfio-pci, but with no luck. I'm using `iommu=off`. Best regards, Jiading Guo [1] https://doc.dpdk.org/guides-23.11/sample_app_ug/flow_filtering.html
