Can you find any doco that states that? Or any other thing that does it?
On 15 Mar 2016 02:21, "Stuart Henderson" <[email protected]> wrote:
> On 2016/03/14 21:13, David Gwynne wrote:
> > this adds macros to describe the min and max valid vlan ids.
> >
> > this will be used in upcoming checks of the configured values from
> > userland.
> >
> > ok?
>
> Hmm - I think there may be something about using tag 0 to allow
> sending packets on an "untagged" vlan with .1q priorities ..
>
> > Index: if_ether.h
> > ===================================================================
> > RCS file: /cvs/src/sys/netinet/if_ether.h,v
> > retrieving revision 1.68
> > diff -u -p -r1.68 if_ether.h
> > --- if_ether.h 14 Mar 2016 03:48:47 -0000 1.68
> > +++ if_ether.h 14 Mar 2016 11:12:24 -0000
> > @@ -87,7 +87,11 @@ struct ether_vlan_header {
> > u_int16_t evl_proto;
> > };
> >
> > -#define EVL_VLID_MASK 0x0FFF
> > +#define EVL_VLID_MASK 0xFFF
> > +#define EVL_VLID_NONE 0x000
> > +/* 0x000 and 0xfff are reserved */
> > +#define EVL_VLID_MIN 0x001
> > +#define EVL_VLID_MAX 0xFFE
> > #define EVL_VLANOFTAG(tag) ((tag) & EVL_VLID_MASK)
> >
> > #define EVL_PRIO_MAX 7
> >
>
