git: 64881da47807 - main - ixgbe: Restore AIM support

[Mark Johnston]

On Mon, May 03, 2021 at 03:30:55PM -0400, Allan Jude wrote:
> On 5/3/2021 2:12 PM, Kevin Bowling wrote:
> > Should we enable this by default?  My primary concern in the review is
> > not making things like this require expert tuning.  If it is expected to
> > be necessary, which Gallatin@ makes a case for, let’s toggle it on by
> > default.
> > 
> > On Mon, May 3, 2021 at 10:56 AM Mark Johnston <markj at freebsd.org
> > <mailto:markj at freebsd.org>> wrote:
> > 
> >     The branch main has been updated by markj:
> > 
> >     URL:
> >     https://cgit.FreeBSD.org/src/commit/?id=64881da478071431a2d9e62613997a5772c56cdf
> >     <https://cgit.FreeBSD.org/src/commit/?id=64881da478071431a2d9e62613997a5772c56cdf>
> > 
> >     commit 64881da478071431a2d9e62613997a5772c56cdf
> >     Author:     Sai Rajesh Tallamraju <stallamr at netapp.com
> >     <mailto:stallamr at netapp.com>>
> >     AuthorDate: 2021-05-03 17:45:00 +0000
> >     Commit:     Mark Johnston <markj at FreeBSD.org>
> >     CommitDate: 2021-05-03 17:47:14 +0000
> > 
> 
> It looks like AIM was on by default in 11.x and earlier:
> hw.ix.enable_aim: 1
> hw.igb.enable_aim: 1
> 
> So I think enabling it does make sense in light of Drew's comments about
> mbuf sorting only being useful in the face of something like AIM where
> there will be a sufficient number of mbufs to sort.

See https://reviews.freebsd.org/D30094