[Bug 193053] ixgbe(4) IXGBE_LEGACY_TX + ALTQ path broken

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193053

--- Comment #12 from Dan <dan_256 at yahoo.com> ---
(In reply to ncrogers from comment #11)
> (In reply to Dan from comment #10)
> > On 10.1-RC1, with the change below, I still get the dreaded "pfctl: igb1:
> > driver does not support altq".  If ixgbe is targeted for 10.1-RELEASE, can
> > igb be fixed as well?
> > 
> > Index: sys/modules/igb/Makefile
> > ===================================================================
> > --- sys/modules/igb/Makefile    (revision 272488)
> > +++ sys/modules/igb/Makefile    (working copy)
> > @@ -21,7 +21,7 @@
> >  # instead use the older if_start non-multiqueue capable interface.
> >  # This might be desireable for testing, or to enable the use of
> >  # ALTQ.
> > -#CFLAGS  += -DIGB_LEGACY_TX
> > +CFLAGS  += -DIGB_LEGACY_TX
> > 
> >  .if !defined(KERNBUILDDIR)
> >  .if ${MK_INET_SUPPORT} != "no"
> > 
> > I posted more about it here:
> > 
> > https://forums.freebsd.org/viewtopic.php?f=44&t=48283
> 
> I've always had to add #define IXGBE_LEGACY_TX to sys/dev/e1000/if_igb.c and
> sys/dev/e1000/if_igb.h to get it to work. Uncommenting CFLAGS in the igb
> Makefile doesn't work when compiling a kernel. I believe it needs to be
> added as a kernel option of some kind to be cleaner.

I guess in the last 3 years, no one has bother to do it because they keep
secretly hoping we can stop using legacy mode to use ALTQ :)

Pretty sure it would be easy to add as a kernel option.  I even saw a thread
where someone described what it would take.  I wonder why it never got
committed.

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