thorpej b094ff415f Change the semantics of mbuf external storage "ext_free" routines
so that they're more useful for arbitrary types of external storage:

* Add an "mbuf *" argument to (*ext_free)().  If non-NULL, (*ext_free)()
  is expected to free the mbuf itself.  This allows (*ext_free)() to use
  the mbuf for bookkeeping (e.g. deferring the work to a helper thread).
  If the "mbuf *" argument is NULL, we are assumed to be in a context
  which is safe for performing the destructor operation *now*.
* Adjust MEXTREMOVE() and MFREE() routines for above change.
* Update "ade" and "ti" drivers for new semantics.
2002-05-02 16:22:43 +00:00
..
2002-04-29 18:18:29 +00:00
2002-04-29 18:21:32 +00:00
2002-04-29 18:21:32 +00:00
2002-04-24 13:49:34 +00:00

$NetBSD: README,v 1.3 1998/08/15 03:02:46 mycroft Exp $

This directory contains files which are used during PCI configuration
and PCI device drivers.  Eventually, most of the device drivers and
some of the configuration support should become machine-independent
and be moved to a more general location.

The configuration support was implemented according to the `PCI Local
Bus Specification, Production Version, Revision 2.0' dated April 30,
1993.  Section numbers referred to in the code may be specific to that
edition of the specification.

Some attempt has been made to insure that the code works on rogue
machines where the BIOS doesn't do its job, but in general I can't
guarantee that.

--
- Charles M. Hannum
  NetBSD group
  August 8, 1994