On Fri, Jul 11, 2014 at 03:26:39PM +0200, Thomas Monjalon wrote: > 2014-07-10 16:32, John W. Linville: > > This is a Linux-specific virtual PMD driver backed by an AF_PACKET > > socket. This implementation uses mmap'ed ring buffers to limit copying > > and user/kernel transitions. The PACKET_FANOUT_HASH behavior of > > AF_PACKET is used for frame reception. In the current implementation, > > Tx and Rx queues are always paired, and therefore are always equal > > in number -- changing this would be a Simple Matter Of Programming. > > > > Interfaces of this type are created with a command line option like > > "--vdev=eth_packet0,iface=...". There are a number of options availabe > > as arguments: > > > > - Interface is chosen by "iface" (required) > > - Number of queue pairs set by "qpairs" (optional, default: 16) > > - AF_PACKET MMAP block size set by "blocksz" (optional, default: 4096) > > - AF_PACKET MMAP frame size set by "framesz" (optional, default: 2048) > > - AF_PACKET MMAP frame count set by "framecnt" (optional, default: 512) > > > > Signed-off-by: John W. Linville <linville at tuxdriver.com> > > --- > > This PMD is intended to provide a means for using DPDK on a broad > > range of hardware without hardware-specific 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. > > Thank you for this nice work. > > I think it would be well suited to host this PMD as an external one in order > to make it work also with DPDK 1.7.0.
I'm not sure I understand the suggestion -- you don't want to merge the driver for 1.8? Or you just want to host this patch somewhere, so people can still use it w/ 1.7? John -- John W. Linville Someday the world will need a hero, and you linville at tuxdriver.com might be all we have. Be ready.
