On 03/11/2016 08:46 PM, Douglas, Frederick E wrote: > I'm new to DPDK. I've gotten the basics working, but I'm having trouble with > the .pcap file-based virtual interface. The EAL is failing to set things up > when I ask it to use a pcap virtual interface, with: > > --vdev > 'eth_pcap0,rx_pcap=/full/path/to/iperf_udp.pcap,tx_pcap=/full/path/to/NEW.pcap' > > It says "EAL: no driver found for eth_pcap0; EAL: failed to initialize > eth_pcap0 device; PANIC in rte_eal_init(): Cannot init pmd devices". > > Everything works fine with the all-in-memory virtual interfaces > (--vdev=eth_ring0 --vdev=eth_ring1). I even confirmed (with chunks of code > from https://github.com/marty90/DPDK-Dump) that I can get testpmd to use a > pcap_dumper_t to dump the traffic it processes to a .pcap file. > > There doesn't seem to be anything in the setup.sh consolidated setup menu > about pcap, and the part of the manual describing the pcap vdev > (http://dpdk.org/doc/guides/nics/pcap_ring.html#libpcap-based-pmd) doesn't > mention anything that needs to be done - in fact it's in the manual right > together with the in-memory ring-based driver. I found a drivers/net/pcap > directory with a Makefile that had never been made, but nothing changed after > making it. > > In case any of this might matter: > =I'm trying to run testpmd (with some slight modifications, which work as > expected with the ring vdev) > =Ubuntu 14.04; DPDK configured for x86_64-native-linuxapp-gcc > =1024 2MiB hugepages > > So, does anyone have any idea? I have a feeling I'm missing something really > simple... but I'm out of ideas about what that might be! >
The PCAP driver is not built by default because it has external dependencies. See http://dpdk.org/doc/guides/nics/pcap_ring.html - Panu -
