On Wed, Jun 15, 2016 at 03:43:56PM +0600, Yerden Zhumabekov wrote: > Hello everybody, > > DPDK already got a number of PMDs for various eth devices, it even has PMD > emulations for backends such as pcap, sw rings etc. > > I've been thinking about the idea of having PMD which would generate mbufs > on the fly in some randomized fashion. This would serve goals like, for > example: > > 1) running tests for applications with network processing capabilities > without additional software packet generators; > 2) making performance measurements with no hw inteference; > 3) ability to run without root privileges, --no-pci, --no-huge, for CI > build, so on. > > Maybe there's no such need, and these goals may be achieved by other means > and this idea is flawed? Any thoughts? >
I think you already have a solution to this problem. Linux/BSD have multiple user space packet generators that can dump thier output to a pcap format file, and dpdk has a pcap pmd that accepts a pcap file as input to send in packets. Neil