Unbalanced LACP link

[Jason Wolfe]

On Mon, Mar 16, 2015 at 2:43 AM, Hans Petter Selasky <hps at selasky.org> wrote:
> On 03/16/15 10:37, Vitalii Duk wrote:
>>
>> I've changed use_flowid to 0 and it helped! But isn't it setting
>> significant? In a description it says "Shift flowid bits to prevent
>> multiqueue collisions".
>
>
> Hi,
>
> Maybe your ethernet hardware is not properly setting the m_flowid ...
>
> --HPS
>

Flip use_flowid back to 1 and try setting
net.link.lagg.default_flowid_shift / net.link.lagg.X.flowid_shift to 0
as Hiren suggested.  r260179 added this shift, which has caused us
balancing issues with the i350/igb.

https://svnweb.freebsd.org/base?view=revision&revision=260179

Based on Adrian's comment about igb/ixgbe not setting the 'full
flowid' under normal conditions, does that mean this shift should be 0
by default to ensure we don't break balancing for devices that only
set the CPU/MSIX queue?

Jason