Re: [PATCH 2/2] [e1000 VLAN] Disable vlan hw accel whenpromiscuous mode

[David Miller]

From: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Date: Tue, 13 Nov 2007 19:09:23 +0800

> I agree.  People doing a tcpdump don't have to turn on promiscuous
> mode, that's what the -p option is for.  In other words, having
> promiscuous mode disable VLAN filtering does not take away the
> user's options at all.
> 
> In fact, the very definition of promiscuous is to turn off hardware
> filtering, albeit the filtering of MAC addresses rather than VLAN
> tags.  So it would seem logical to have it turn off VLAN filtering
> too.

Ok.

The performance implications can be pretty severe however.
I wish we could address this somehow.

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