Testing VF/PF code

Wed May 30 17:19:17 UTC 2018

I think the biggest hurdle is that for igb, the pf and vf should be split. That was being considered at the same time as the ixgbe/ixgbevf split, but there was little interest at the time.

Jeff

On 5/30/18, 9:13 AM, "owner-freebsd-net at freebsd.org on behalf of Harry Schmalzbauer" <owner-freebsd-net at freebsd.org on behalf of freebsd at omnilan.de> wrote:

    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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