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 11
===================
In this week I've written the ptnet device model emulation. Most of the
functionalities have been implemented (the registers and the interaction
with netmap backend). Next week I will do extensive testing of the ptnet
driver over bhyve, bug fixing and performance evaluation.

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
https://svnweb.freebsd.org/socsvn/soc2016/vincenzo/head/usr.sbin/bhyve/pci_ptnetmap_netif.c?view=markup
https://svnweb.freebsd.org/socsvn/soc2016/vincenzo/head/usr.sbin/bhyve/net_backends.c?view=markup


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Vincenzo Maffione