src/sys/modules/en, branch main

Remove the NATM framework including the en(4), fatm(4), hatm(4), and

2017-04-24T21:21:49+00:00

patm(4) devices.

Maintaining an address family and framework has real costs when we make
infrastructure improvements.  In the case of NATM we support no devices
manufactured in the last 20 years and some will not even work in modern
motherboards (some newer devices that patm(4) could be updated to
support apparently exist, but we do not currently have support).

With this change, support remains for some netgraph modules that don't
require NATM support code. It is unclear if all these should remain,
though ng_atmllc certainly stands alone.

Note well: FreeBSD 11 supports NATM and will continue to do so until at
least September 30, 2021.  Improvements to the code in FreeBSD 11 are
certainly welcome.

Reviewed by:	philip
Approved by:	harti

sys/modules: normalize .CURDIR-relative paths to SRCTOP

2017-03-04T10:10:17+00:00

This simplifies make output/logic

Tested with:	`cd sys/modules; make ALL_MODULES=` on amd64
MFC after:	1 month
Sponsored by:	Dell EMC Isilon

Move most of the 15 variations on generating opt_inet.h and

2014-08-04T22:37:02+00:00

opt_inet6.h into kmod.mk by forcing almost everybody to eat the same
dogfood. While at it, consolidate the opt_bpf.h and opt_mroute.h
targets here too.

Let modules use the kernel's opt_*.h files if built along with

2005-10-14T23:30:17+00:00

the kernel by wrapping all targets for fake opt_*.h files in
.if defined(KERNBUILDDIR).  Thus, such fake files won't be
created at all if modules are built with the kernel.

Some modules undergo cleanup like removing unused or unneeded
options or .h files, without which they wouldn't build this way
or the other.

Reviewed by:	ru
Tested by:	no binary changes in modules built alone
Tested on:	i386 sparc64 amd64

When compiling the module with INVARIANTS we also need INVARIANT_SUPPORT.

2003-08-06T16:01:32+00:00

Repo-copy of sys/pci/if_en_pci.c to the rest of the midway driver (sys/dev/en)

2003-06-16T15:25:51+00:00

so that all of the driver sources are in one place. Adjust the configuration
files and the module build.

Convert the midway driver to use busdma. Except for this conversion the

2003-04-25T16:14:03+00:00

following changes have been done:

- stylify. The original code was too hard to read.
- get rid of a number of compilation options (Adaptec-only, Eni-only, no-DMA).
- more debugging features.
- locking. This is not correct yet in the absence of interface layer locking,
  but is correct enough to not to cause lock order reversals.
- remove RAW mode. There are no users of this in the tree and I doubt that
  there are any.
- remove NetBSD compatibility code. There was no way to keep NetBSD non-busdma
  and FreeBSD busdma code together.
- if_en now buildable as a module.

This has been actively tested on sparc64 and i386 with ENI server and
client cards and an Adaptec card (thanks to kjc).

Reviewed by:	mdodd, arr