Network [FreeBSD WIKI]

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====== FreeBSD Developer Summit Network Stack Working Group ======

May 9th, 2012 (Wednesday).

===== Overview =====

As part of the [[DevSummit/201205|May 2012 FreeBSD developer summit]], this working group focused on %%FreeBSD%% networking projects.  This was a by-invitation event open to developer summit attendees interested in this topic.  This working group is to discuss the status and issues of %%FreeBSD%% base networking components.

If you would like to participate, contact the chairperson below and CC devsummit@. You will be then added to this page. Please include a list of things you want to talk about or the areas you are interested in. This helps in planning the session and to bring people together with common interests.

===== Goals =====

  * Obtain an up to date summary of networking efforts.
  * Produce a list of networking projects currently underway.

===== Specific Topics (your ideas here) =====

  * L2 redesign / differentiate L2 ifnet vs L3 ifnet
  * ifnet redesign
    * Expose queues more explicitly to the network stack
    * Attempt to reduce assumptions of indirection
    * Scalable/portable statistics gathering
    * Reduce 10gbps driver sizes by creating common library routines
    * Walk all ifnet services/abstractions/APIs and see if their time has come
    * Support for IPv6 ext hdr.s
  * Virtualization
  * mbuf redesign
    * Variable-size mbufs
    * m_tags inline
    * Reducing assumptions of indirection
    * Help offloading
  * Checksum improvements
  * Roadmap for 10.0
  * multi-fib
  * netmap and high speed packet I/O
  * latency and general performance evaluation 

===== Attendees =====

^ Name ^ Affiliation ^ Topics of interest ^ Other notes ^
| [[/JulianElischer|JulianElischer]] | %%FreeBSD%% | mbuf, vimage, fibs | Session chair |
| [[/RobertWatson|RobertWatson]] | University of Cambridge |  | Session co-chair |
| [[/BjoernZeeb|BjoernZeeb]] | %%FreeBSD%% | mbuf, ifnet, checksums, offloading {{devsummit/201205/network/201205-bsdcan-devsummit-netstack-wg.pdf?linkonly|201205-BSDCan-DevSummit-Netstack-WG.pdf}} |  |
| [[/MatthewFleming|MatthewFleming]] | EMC |  |  |
| Jason S. %%McMullan%% | Netronome |  |  |
| [[/LuigiRizzo|LuigiRizzo]] | Univ. Pisa | netmap, mbuf, performance |  |
| [[/MikeSilbersack|MikeSilbersack]] | %%McAfee%% |  |  |
| [[/DavidSomayajulu|DavidSomayajulu]] | Qlogic |  |  |
| [[/MariusStrobl|MariusStrobl]] | %%FreeBSD%% |  |  |
| [[/MichaelTuexen|MichaelTuexen]] | Muenster Univ. of Applied Sciences |  |  |
| Navdeep Parhar | Chelsio, %%FreeBSD%% | mbuf, tx multiq |  |
| Neel Natu | %%FreeBSD%% |  |  |
| Karim Fodil-Lemelin | Xiplink |  |  |
| [[/RuiPaulo|RuiPaulo]] | Apple |  |  |
| [[/MarcelMoolenaar|MarcelMoolenaar]] | Juniper |  |  |
| Mike Karels | %%McAfee%% | mbuf and ifnet redo |  |
| %%DaichiGOTO%% |  |  |  |
| [[/EdMaste|EdMaste]] | Sandvine |  |  |
| Anuranjan Shukla | Juniper |  |  |
| [[/RyanStone|RyanStone]] | Sandvine |  |  |
| [[/BrooksDavis|BrooksDavis]] | Aerospace |  |  |
| [[/JosephKong|JosephKong]] | Author |  |  |
| Ermal Luçi | pfSense |  |  |
| Chris Buechler | pfSense |  |  |
| Scott Ullrich | pfSense |  |  |
| Hiroki Sato |  |  |  |
| Warner Losh | %%FusionIO%% |  |  |
| [[/GeorgeNevilleNeil|GeorgeNevilleNeil]] | %%FreeBSD%% |  |  |

===== Results =====

TBD!

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