[dpdk-dev] [RFC] librte_pmd_packet: add PMD for AF_PACKET-based virtual devices

[Chris Wright]

* John W. Linville (linville at tuxdriver.com) wrote:
> On Fri, Jun 06, 2014 at 12:47:48PM -0700, Chris Wright wrote:
> > * John W. Linville (linville at tuxdriver.com) wrote:
> > > This is a Linux-specific virtual PMD driver backed by an AF_PACKET
> > > socket.  The current implementation uses mmap'ed ring buffers to
> > > limit copying and user/kernel transitions.  The intent is also to take
> > > advantage of fanout and any future AF_PACKET optimizations as well.
> > > 
> > > This is intended to provide a means for using DPDK on a broad range
> > > of hardware without hardware-specifi PMDs and hopefully with better
> > > performance than what PCAP offers in Linux.  This might be useful
> > > as a development platform for DPDK applications when DPDK-supported
> > > hardware is expensive or unavailable.
> > 
> > Nice, have you compared yet w/ PCAP numbers?
> 
> No, sorry -- definitely needs more testing, including performance numbers...

No worries, just curious ;)