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Date:      Thu, 29 Jun 2017 08:44:27 -0700
From:      Vincenzo Maffione <v.maffione@gmail.com>
To:        Paras Jha <dreadiscool@gmail.com>
Cc:        FreeBSD Net <freebsd-net@freebsd.org>
Subject:   Re: Netmap with bonded interfaces
Message-ID:  <CA%2B_eA9jHD0=gkT8ORMNx8ppoCejh-ojA=ORexAzTp62iqpVFXQ@mail.gmail.com>
In-Reply-To: <CAMs8r4N8Zw%2Br3v46sKQ_KZY-iAnSWy7q5GP4oAgvJJVwt4kwfQ@mail.gmail.com>
References:  <CAMs8r4O1w78R0-csa1BXy86oEUq0YbJZ15x_v%2Bbi-0U9OxGUxQ@mail.gmail.com> <CA%2B_eA9ifaA2LtJtOitBpRHqCT0uBy-TP1cggPxEDTjUVtDz90Q@mail.gmail.com> <CAMs8r4N8Zw%2Br3v46sKQ_KZY-iAnSWy7q5GP4oAgvJJVwt4kwfQ@mail.gmail.com>

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Bypass what?

2017-06-28 22:59 GMT-07:00 Paras Jha <dreadiscool@gmail.com>:

> It's possible to bypass this by unloading and reloading the patched
> network driver
>
> On Thu, Jun 29, 2017 at 12:39 AM, Vincenzo Maffione <v.maffione@gmail.com>
> wrote:
>
>> Hi,
>>   It is an expected behaviour that you cannot open eth4 and eth5 if they
>> are bond, as the device are being used by the lagg pseudo-driver.
>> Since this driver does not have netmap support for the moment being,
>> there is no way you can get the native mode performance if you use lagg.
>>
>> If you just need some failover in your application, you could just
>> implement a simple failover mechanism in your application (e.g. the
>> application opens both netmap:eth4 and netmap:eth5, and decides which one
>> to use for transmission depending on which one is up...).
>>
>> Cheers,
>>   Vincenzo
>>
>> 2017-06-29 4:16 GMT+02:00 Paras Jha <dreadiscool@gmail.com>:
>>
>>> Hi all,
>>>
>>> I have a bonded interface bond0 which enslaves eth4 and eth5. When trying
>>> to open the devices eth4 or eth5 via netmap, I get a "device in use"
>>> error.
>>> Opening the bond0 interface directly in netmap works, however it is in
>>> emulated mode (as expected of a pseudointerface)
>>>
>>> What is the idiomatic way to proceed in such a situation, without
>>> compromising on speed?
>>>
>>> Thanks
>>> _______________________________________________
>>> freebsd-net@freebsd.org mailing list
>>> https://lists.freebsd.org/mailman/listinfo/freebsd-net
>>> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
>>>
>>
>>
>>
>> --
>> Vincenzo Maffione
>>
>
>


-- 
Vincenzo Maffione



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