svn commit: r281151 - projects/ifnet/sys/net

[Lawrence Stewart]

Hi Gleb,

On 04/06/15 08:22, Gleb Smirnoff wrote:
> Author: glebius
> Date: Mon Apr  6 15:22:32 2015
> New Revision: 281151
> URL: https://svnweb.freebsd.org/changeset/base/281151
> 
> Log:
>   Provide software context store in struct ifnet for any facility. To add
>   a new facility, one needs to grab a value in the ift_feature enum, and
>   not need to modify struct ifnet.
>   
>   The store also has a cache to return frequently requested values,
>   which resembles kobj(9) method cache.
>   
>   The plan is to move into the softc store almost all possible software
>   contexts that hang off the struct ifnet, leaving static only the driver
>   softc, AF_INET, AF_INET6 pointers, and other frequently used pointer.

It seems likely that this is partially reinventing OSD(9) (also see the
way I used it for for khelp(9)). Perhaps OSD could be improved with some
useful things like the cache and then it might be a suitable drop in
replacement here as well?

Cheers,
Lawrence