cvs commit: src/sys/dev/em if_em.c if_em.h

[Attila Nagy]

Robert Watson wrote:
>   that the card isn't doing it on transmit.  Due to a feature of card
>   operation, if the global VLAN prepend/strip register isn't set,
>   setting the VLAN tag flag on individual packet descriptors will
>   cause the packet to be transmitted using ISL encapsulation rather
>   than 802.1Q VLAN encapsulation.
AFAIK, FreeBSD has no ISL support.
Would it be possible to set this flag somehow, so the user could switch 
between 802.1q and ISL? This way the NIC would do the tagging, so no 
kernel support would be needed I guess.

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Attila Nagy                                   e-mail: Attila.Nagy at fsn.hu
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