On 08/04/2018 05:30 PM, Robert P. J. Day wrote:
>
> i'm sure this is second nature for the experts here, but in
> netdevice.h:
>
> /* These flag bits are private to the generic network queueing
> * layer; they may not be explicitly referenced by any other
> * code.
> */
>
> enum netdev_state_t {
> __LINK_STATE_START,
> __LINK_STATE_PRESENT,
> __LINK_STATE_NOCARRIER,
> __LINK_STATE_LINKWATCH_PENDING,
> __LINK_STATE_DORMANT,
> };
>
> it would be handy to have a short explanation of what each state
> represents, perhaps what combinations are possible and how one moves
> from one state to another.
>
> rday
>
It is far from perfect, but Documentation/networking/operstates.txt
might get you started.
