Hello everybody! I am new in DPDK. I'm trying simply to capture traffic from a 10G physical NIC. I installed the DPDK from source files and activated the following modules in common-base file:
CONFIG_RTE_LIBRTE_PMD_PCAP=y CONFIG_RTE_LIBRTE_PDUMP=y CONFIG_RTE_PORT_PCAP=y Then I built the distribution using the dpdk-setup.h script. Also I add hugepages and check they are configured successfully: AnonHugePages: 4096 kB HugePages_Total: 2048 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB To capture the traffic I guess I can use the dpdk-pdump application, but I don't know how to use it. First of all, does it work if I bind the interfaces using the uio_pci_generic drive? I guess that if I capture the traffic using the linux kernel driver (ixgbe) I will loose a lot of packets. To bind the NIC I write this command: sudo ./tools/dpdk-devbind.py --bind=uio_pci_generic eth0 When I check the interfaces I can see that the NIC was binded successfully. Also I checked that mi NIC is compatible with DPDK (Intel 8599) Network devices using DPDK-compatible driver ============================================ 0000:01:00.0 '82599ES 10-Gigabit SFI/SFP+ Network Connection' drv=uio_pci_generic unused=ixgbe,vfio-pci To capture packets, I read in the mailing list that it is necessary to run the testpmd application and then dpdk-pdump using different cores. So I used the following commands: sudo ./x86_64-native-linuxapp-gcc/app/testpmd -c 0x6 -n 4 -- -i sudo ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -c 0xff -n 2 -- --pdump 'device_id=01:00.0,queue=*,rx-dev=/tmp/file.pcap' Did I miss any step? Is it necessary to execute any more commands when running the testpmd app in interactive mode? When I execute the pdump application I get the following error: EAL: Detected 8 lcore(s) EAL: Probing VFIO support... EAL: VFIO support initialized EAL: WARNING: Address Space Layout Randomization (ASLR) is enabled in the kernel. EAL: This may cause issues with mapping memory into secondary processes PMD: bnxt_rte_pmd_init() called for (null) EAL: PCI device 0000:01:00.0 on NUMA socket -1 EAL: probe driver: 8086:10fb rte_ixgbe_pmd EAL: PCI device 0000:01:00.1 on NUMA socket -1 EAL: probe driver: 8086:10fb rte_ixgbe_pmd PMD: Initializing pmd_pcap for eth_pcap_rx_0 PMD: Creating pcap-backed ethdev on numa socket 0 Port 2 MAC: 00 00 00 01 02 03 PDUMP: client request for pdump enable/disable failed PDUMP: client request for pdump enable/disable failed EAL: Error - exiting with code: 1 Cause: Unknown error -22 In the testpmd app I get the following info: EAL: Detected 8 lcore(s) EAL: Probing VFIO support... EAL: VFIO support initialized PMD: bnxt_rte_pmd_init() called for (null) EAL: PCI device 0000:01:00.0 on NUMA socket -1 EAL: probe driver: 8086:10fb rte_ixgbe_pmd EAL: PCI device 0000:01:00.1 on NUMA socket -1 EAL: probe driver: 8086:10fb rte_ixgbe_pmd Interactive-mode selected USER1: create a new mbuf pool <mbuf_pool_socket_0>: n=155456, size=2176, socket=0 Configuring Port 0 (socket 0) Port 0: 00:E0:ED:FF:60:5C Configuring Port 1 (socket 0) Port 1: 00:E0:ED:FF:60:5D Checking link statuses... Port 0 Link Up - speed 10000 Mbps - full-duplex Port 1 Link Up - speed 10000 Mbps - full-duplex Done testpmd> PDUMP: failed to get potid for device id=01:00.0 PDUMP: failed to get potid for device id=01:00.0 Could you please help me? Thank you!