[Bug 236983] bnxt(4) VLAN not operational unless explicit "ifconfig promisc" is used on the physical IF

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236983

--- Comment #19 from Juraj Lutter <juraj at lutter.sk> ---
(In reply to Juraj Lutter from comment #18)

To add:
dev.bnxt.0.ver.hwrm_min_ver: 1.2.2
dev.bnxt.0.ver.hwrm_if: 1.10.1

flags=28943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,PPROMISC>
options=e407bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6>
FreeBSD 12.2-STABLE r367273

With physical interfaces in promisc:

lagg1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500   
options=e407bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6>
        ether bc:97:e1:7d:d4:70
        laggproto lacp lagghash l3,l4
        laggport: bnxt0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
        laggport: bnxt1 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
        laggport: bnxt2 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
        laggport: bnxt3 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>

Otherwise:
bnxt3: Interface stopped DISTRIBUTING, possible flapping

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