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From: Matthew Macy <mmacy@freebsd.org>
Date: Tue, 26 May 2020 17:01:11 -0700
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Subject: Fwd: iflib and options RSS is a no go for igbX
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>
> I can go setup my second PC this week (I have PTO!) and go see if I
> have any PCIe igb hardware here. I /think/ I do but it's fibre.

The RSS compile time option used to be disabled in part because of
this. The drivers had working RSS that relied on packet receipt before
setting flowid.
-M