Abstracting struct ifnet

[Luigi Rizzo]

On Mon, Feb 20, 2012 at 05:16:02PM -0600, Brooks Davis wrote:
> 
> The concept seems fine to me and I like that it might simplify future
> API changes.  Have you verified that if_get_*() accessors don't add
> significant overhead?

the vast majority of these fields are only accessed in the control path,
not on each packet, so there isn't really a performance issue. Besides
they can be trivially implemted as macros or inline functions.

cheers
luigi