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Date:      Wed, 30 May 2018 18:11:19 +0200
From:      Harry Schmalzbauer <freebsd@omnilan.de>
To:        Kevin Bowling <kevin.bowling@kev009.com>
Cc:        Ryan Stone <rysto32@gmail.com>, Sean Bruno <sbruno@freebsd.org>, freebsd-net <freebsd-net@freebsd.org>
Subject:   Re: Testing VF/PF code
Message-ID:  <a4388a04-4f97-907b-e072-c1c1be1acbbe@omnilan.de>
In-Reply-To: <CAK7dMtATsyiBRhz%2BcnjendaPc2=qfM4Dnbd7VF0t4RkxLkg5dQ@mail.gmail.com>
References:  <4bc71104-349d-10b6-c7a4-0202e124ff98@freebsd.org> <CAFMmRNxzdJFzG4xSG5RVMt3Bv140hoG%2B6QrLBN6Oe%2BtcZTWNDQ@mail.gmail.com> <bfbe39a6-436d-d860-9fc7-ba602cfde0d3@omnilan.de> <CAK7dMtATsyiBRhz%2BcnjendaPc2=qfM4Dnbd7VF0t4RkxLkg5dQ@mail.gmail.com>

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Am 30.05.2018 um 17:53 schrieb Kevin Bowling:
> Harry,
> 
> I wasn’t aware of anyone desiring vf support for igb but I’ll take a 
> look at it for you if you can test -current with patches when I’m ready. 
> My motive is more to validate and refine the iflib functionality and 
> this is a good exercise.

Christmas in summer on the northern hemisphere :-)

Unfortunately the only machine I have available for tests won't do 
SR-IOV as far as I remember, since this feature is disabled for E3-Xeons.

I can't remember all the details, but I gave up with SR-IOV on any Intel 
single-socket platform since E5-1600 v3/5 never showed up :-(
Although FreeBSD wasn't involved, I guess the basic requirements are the 
same and I don't have a chance to use SR-IOV on E3-Xeon (v2, C203 BearTooth)

Shall I falsify with mps(4)?  I think this supports VFs and I have one 
in spare.

I'm very sorry that I won't be able to test anything – but if I'm the 
only igb-VF consumer, not capable of using it currently at all, Ryan 
might be right with the waste of time...

-harry




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