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SubjectRe: [PATCH net-next] tuntap: hardware vlan tx support
On 07/24/2013 11:11 PM, Stephen Hemminger wrote:
> On Wed, 24 Jul 2013 13:55:14 +0800
> Jason Wang <jasowang@redhat.com> wrote:
>
>> On 07/23/2013 11:53 PM, Stephen Hemminger wrote:
>>> On Tue, 23 Jul 2013 15:15:48 +0800
>>> Jason Wang <jasowang@redhat.com> wrote:
>>>
>>>> + struct {
>>>> + __be16 h_vlan_proto;
>>>> + __be16 h_vlan_TCI;
>>>> + } veth;
>>> Don't you want to use struct vlan_hdr here?
>> There's no need to care encapsulated proto here. In fact, we just
>> emulate the hardware inserting of 802.1Q header. So only skb->vlan_tci
>> and skb->vlan_proto needs to be cared.
>>> Your definition puts the two fields out of order?
>> It's order is same as struct vlan_ethhdr. Did you see any issue?
> I was looking at if_vlan.h struct vlan_hdr. The veth structure
> is a slice between ether and vlan header.

Right, so no functional issue.


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