[Bug 209581] igb vf driver does not correctly handle vlan tag

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209581

Kaho Toshikazu <kaho at elam.kais.kyoto-u.ac.jp> changed:

           What    |Removed                     |Added
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                 CC|                            |kaho at elam.kais.kyoto-u.ac.j
                   |                            |p

--- Comment #4 from Kaho Toshikazu <kaho at elam.kais.kyoto-u.ac.jp> ---
(In reply to ingenium from comment #3)
Please try a patch for 11-stable. I don't test it.
This functionality seems to be dropped from 12-current's iflib if_em.c.

Index: sys/dev/e1000/if_igb.c
===================================================================
--- sys/dev/e1000/if_igb.c      (revision 314587)
+++ sys/dev/e1000/if_igb.c      (working copy)
@@ -5327,7 +5327,6 @@
        if (adapter->vf_ifp) {
                e1000_rlpml_set_vf(hw,
                    adapter->max_frame_size + VLAN_TAG_SIZE);
-               return;
        }

        reg = E1000_READ_REG(hw, E1000_CTRL);

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