Subject: Re: if_delete * if_alloc
To: None <>
From: Bill Studenmund <>
List: tech-kern
Date: 07/09/1997 10:13:23
> On Tue, 08 Jul 1997 21:47:00 -0400 
>  Matt Thomas <> wrote:
>  > I can see if_delete for slip/ppp/tun/* but not real ethernet hardware
>  > which will be known at boot time.  (unless we want to LKM's.)
> Not necessarily... c.f. pcmcia devices... hot swap in and hot swap out.
> You want to be able to completely release everything at "pop out" time,
> but just can't release ifnets until all of the pkthdr mbufs that reference
> it are gone.

Would it be ok to postpone deleting the softc a bit? The idea would be to
leave the ifnet in the ethercom, and add all the refcount stuff. When
the count gets to zero, an (*if_iffree) routine'd get called which'd
delete the ifnet, probably by deleting the softc it's within. The softc
could already have been unhooked from the config tree.

Take care,