I think I was looking at the wrong field in the data dump. I'm
seeing vlan tags in both directions.
With writing to vlantag1 register,
in Tx case I see the following
veth->h_vlan_proto = 0x8100veth->h_vlan_proto = 0x8100
veth->h_vlan_TCI = 2
veth->h_vlan_encapsulated_proto = 806
in Rx case I see the following
veth->h_vlan_TCI = 32a
veth->h_vlan_encapsulated_proto = 806
The above was observed on arm board.
I guess it is working?
Thanks alot for your help!
/kmk
On 3/14/07, Ben Greear <greearb@xxxxxxxxxxxxxxx> wrote:
kmk wrote:
> Ben
>
> On the arm side, in my driver, I cast skb->data to vlan_ethhdr and
> dumping it
> from hard_xmit and receive routines. I don't see correct h_vlan_proto value.
> I see only 0x806 and 0x800 when I ping from either direction. I tried
> both small packets and large packets (512, 1496).
Did you stop writing to the vlan register?
> On the PC, I used ethereal to sniff the physical interface and again I don't
> see vlan tags in both ping requests/responses and in ARP queries.
Intel NICs eat the vlan tags, as previously mentioned, so you won't
see tags there. Use a third machine to sniff the network using
a hub..don't configure any vlan devices on that machine, and you should
see vlan tags as expected.
Ben
--
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc http://www.candelatech.com
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