Is netmap jumbo frames broken in STABLE?

Vincenzo Maffione v.maffione at gmail.com
Thu Dec 6 08:20:20 UTC 2018


Hi,
  Actually I just realized that this patch is suitable for stable/11,
whereas on stable/12 ixgbe is served by iflib, and therefore
we need a different patch.

I'll keep you updated then.

Cheers,
  Vincenzo

Il giorno mer 5 dic 2018 alle ore 20:45 Andrew Vylegzhanin <avv314 at gmail.com>
ha scritto:

> Hi,
> of course I want to test.
> But it takes time up to 1-2 weeks, since  I need setup HEAD environment in
> lab and modify my code for NS_MOREFRAG.
>
> When we can wait for MFC to stable/12 (or stable/11)
>
> --
> Andrew
>
> вс, 2 дек. 2018 г. в 13:30, Vincenzo Maffione <v.maffione at gmail.com>:
>
>> Hi,
>>   I prepared a patch (against FreeBSD-HEAD) to to support jumbo frames in
>> ixgbe.
>> https://reviews.freebsd.org/D18402
>> Would you be able to test it?
>>
>> Thanks,
>>   Vincenzo
>>
>> Il giorno gio 22 nov 2018 alle ore 13:37 Andrew Vylegzhanin <
>> avv314 at gmail.com> ha scritto:
>>
>>>
>>>
>>> чт, 22 нояб. 2018 г. в 13:42, Vincenzo Maffione <v.maffione at gmail.com>:
>>> >
>>> > Hi,
>>> >   Yes, absolutely, I'm currently working on aligning netmap on FreeBSD
>>> (head, stable/12 and stable/11) to
>>> > the same status it has on Linux (more features, more bugfixes,
>>> continuous integration infrastructure ... ).
>>>
>>> Great!
>>>
>>> >
>>> > In particular, on Linux jumbo frames are already supported on ixgbe,
>>> e1000, igb, e1000e, etc.
>>>
>>> BTW, what situation with ixl driver and chelsio  ?
>>>
>>> >
>>> >
>>> > I have some netmap patches are already in the queue (see here
>>> https://reviews.freebsd.org/differential/query/Ol8MNtAi2AIs/#R),
>>> > so I can address the ixgbe-jumbo-frames item as soon as the queue
>>> drains.
>>> > If you want to give a try in the meanwhile, and/or test ixgbe on
>>> FreeBSD it would be great.
>>> >
>>>
>>> I will look forward to ixgbe-jumbo-frames.
>>> Of course, I'm ready to test on both stable's.
>>>
>>
>>
>>>
>>> >
>>> > Cheers,
>>> >   Vincenzo
>>> >
>>> WBR,
>>> --
>>> Andrew
>>>
>>> > Il giorno gio 22 nov 2018 alle ore 11:23 Andrew Vylegzhanin <
>>> avv314 at gmail.com> ha scritto:
>>> >>
>>> >> Hi,
>>> >>
>>> >> Come back to subject after two years.
>>> >> I would like to clarify situation with jumbo frames in ixgbe driver.
>>> >>
>>> >> I've looked to
>>> >>
>>> https://github.com/luigirizzo/netmap/blob/master/LINUX/ixgbe_netmap_linux.h
>>> >> and see a lot of changes compared 11/12-STABLE version ixgbe_netmap.h.
>>> >> Is it possible to back port it?
>>> >>
>>> >> In general, is there a chance to get worked jumbo frames on ixgbe?
>>> >>
>>> >> --
>>> >> Andrew
>>> >>
>>> >> ср, 8 июн. 2016 г. в 14:28, <tom.barbette at ulg.ac.be>:
>>> >>
>>> >> > Support for fragmented packets with ixgbe was recently added on the
>>> linux
>>> >> > version of Netmap :
>>> >> >
>>> >> >
>>> >> >
>>> https://github.com/luigirizzo/netmap/commit/fc1e77560a8a8ea93cc3594de5fae94334debcd3
>>> >> >
>>> >> > I think the change for freebsd would be quite the same looking at
>>> >> >
>>> https://github.com/freebsd/freebsd/blob/master/sys/dev/netmap/ixgbe_netmap.h#L396
>>> >> >
>>> >> > After that, your userspace application simply have to check for the
>>> >> > NS_MOREFRAG flag in the receive ring, and if it's set he knows the
>>> end of
>>> >> > the packet will follow in the next buf.
>>> >> >
>>> >> > Tom
>>> >> >
>>> >> _______________________________________________
>>> >> freebsd-net at freebsd.org mailing list
>>> >> https://lists.freebsd.org/mailman/listinfo/freebsd-net
>>> >> To unsubscribe, send any mail to "freebsd-net-unsubscribe at freebsd.org
>>> "
>>> >
>>> >
>>> >
>>> > --
>>> > Vincenzo
>>>
>>
>>
>> --
>> Vincenzo
>>
>

-- 
Vincenzo


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