[Bug 282309] igb(4) shows high error count when attached to VF

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=282309

--- Comment #6 from [email protected] ---
A commit in branch stable/15 references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=d2518851f2f90b0b36e7354b5441935125b8a574

commit d2518851f2f90b0b36e7354b5441935125b8a574
Author:     John-Mark Gurney <[email protected]>
AuthorDate: 2025-09-26 19:58:02 +0000
Commit:     John-Mark Gurney <[email protected]>
CommitDate: 2025-09-26 20:16:16 +0000

    e1000: fix igb VF stats

    igb VF must not read normal stat registers and only read a limited
    set of registers.  The PF registers also don't make since as the VF
    is an internal port, and there is no PHY to collect stats like CRC
    errors from.

    This is effectively a cherry-pick of 3c60ea77649d, which had to be
    adapted due to another commit.  This is diff id 161565.

    PR:     282309
    Obtained from:  Juniper Networks, Inc.
    Differential Revision:  https://reviews.freebsd.org/D52326

 sys/dev/e1000/if_em.c | 351 +++++++++++++++++++++++++++++++-------------------
 sys/dev/e1000/if_em.h |  19 ++-
 2 files changed, 237 insertions(+), 133 deletions(-)

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