High-performance TCP/IP networking for bhyve VMs using netmap passthrough

[Vincenzo Maffione]

Hello

Project summary
=================
ptnet is a new multi-queue paravirtualized device that builds on ptnetmap
to allow VMs to exchange TCP traffic at 20 Gbps, while still offering the
same ptnetmap performance (10-100 Mpps) to native netmap applications.
The purpose of this SOC project is to write a ptnet driver for FreeBSD and
a corresponding device model for the bhyve hypervisor.


Status update for week 1
===================
I've studied the structure of a freebsd PCI NIC driver and implemented the
basic device methods for ptnet (device probe attach, detach), including
device capabilities discovery, ethernet interface initialization and MSI-X
interrupt service routine setup.


Links:
   Project wiki page:
https://wiki.freebsd.org/SummerOfCode2016/PtnetDriverAndDeviceModel
   Code:
https://svnweb.freebsd.org/socsvn/soc2016/vincenzo/head/sys/dev/netmap/if_ptnet.c?view=markup


Best Regards,
  Vincenzo Maffione