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

["John W. Linville" <linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>]

On Fri, Jun 06, 2014 at 12:47:48PM -0700, Chris Wright wrote:
> * John W. Linville (linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org) 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...

John
-- 
John W. Linville		Someday the world will need a hero, and you
linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org			might be all we have.  Be ready.