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 2
===================
I've implemented the netmap methods for the ptnet driver: register,
unregister, txsync, rxsync, attach, config, krings_create, krings_delete
and the attach/detach code in the corresponding driver routines.
In this week I will test the code and bug-fix in order to get to a point
where the ptnet driver correctly works in netmap mode.

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

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Vincenzo Maffione