Disabling VLAN_HWTAGGING

[Ruslan Ermilov]

On Thu, Mar 25, 2004 at 11:18:40AM -0800, Jacob S. Barrett wrote:
> Can you disable VLAN_HWTAGGING?
> 
Not without modifying if_nge.c, but it should be pretty trivial.

> I am seeing very strange behavior on a if_nge card with VLANs.  If i try and 
> connect an if_vlan to it the kernel panics.  If I connect a ng_vlan to it 
> tcpdump show that the tagged frames are "leaving" the if_nge interface, but 
> tcpdump running on a remote host that is crossed over (if_em) show no frames 
> leaving the if_nge.
> 
ng_vlan(4) doesn't provide support for hardware VLAN tagging for output
frames -- it always emits ETHERTYPE_VLAN type Ethernet frames.

> I am wondering if it is something to do VLAN_HWTAGGING.  The if_em cards I 
> have don't do it and work fine, but the if_nge cards don't work at all.
> 
What FreeBSD version you're seeing the panic on?


Cheers,
-- 
Ruslan Ermilov
FreeBSD committer
ru at FreeBSD.org
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