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

This simplifies make output/logic

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

Remove pc98 support completely.
I thank all developers and contributors for pc98.

Relnotes: yes

Cleanup the way we include some files (in this case EISA) based on
kernel config. Also tidy up the ed options.

Add if_ed_rtl80x9.c

Minor reorg to have each bus' files on one line.

Break out obscure ISA cards into their own files, as well as ne2000
and wd80x3 support. Make the obscure ISA cards optional, and add
those options to NOTES on i386 (note: the ifdef around the whole

Break out obscure ISA cards into their own files, as well as ne2000
and wd80x3 support. Make the obscure ISA cards optional, and add
those options to NOTES on i386 (note: the ifdef around the whole code
is for module building). Tweak pc98 ed support to include wd80x3 too.
Add goo for alpha too.

The affected cards are the 3Com 3C503, HP LAN+ and SIC (whatever that
is). I couldn't find any of these for sale on ebay, so they are
untested. If you have one of these cards, and send it to me, I'll
ensure that you have no future problems with it...

Minor cleanups as well by using functions rather than cut and paste
code for some probing operations (where the function call overhead is
lost in the noise).

Remove use of kvtop, since they aren't required anymore. This driver
needs to get its memory mapped act together, however, and use bus
space. It doesn't right now.

This reduces the size of if_ed.ko from about 51k to 33k on my laptop.

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Move to generating pccarddevs.h on the fly, both for the kernel and
the modules.

Also generate usbdevs.h automatically now, but a non-kernel file is
stopping that at the moment.

Move adding -DPC98 to CFLAGS from each modules to sys/modules/Makefile.inc.

Add a change I forgot when adding ED_NO_MIIBUS. This will likely
be backed out with the rest of ED_NO_MIIBUS when the general miibus
code makes proper use of newbus.

Add support for Dlink DL10022 to the ed driver. This is a mii part
bolted to a ne-2000 chip. This is necessary for the NetGear FA-410TX
and other cards.

This also requires you add mii to your kern

Add support for Dlink DL10022 to the ed driver. This is a mii part
bolted to a ne-2000 chip. This is necessary for the NetGear FA-410TX
and other cards.

This also requires you add mii to your kernel if you have an ed driver
configured.

This code will result in a couple of timeout messages for ed on the
impacted cards. Additional work will be needed, but this does work
right now, and many people need these cards.

Submitted by: Ian Dowse <[email protected]>

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Use a consistent style and one much closer to the rest of /usr/src

if_ed_cbus.c is required from PC-98 only, and if_ed_isa.c is not necessary
for PC-98.

Add card_if.h and sort the header files, while I'm here.

Add Makefile to build an if_ed kernel module. Works on both, i386 and
alpha.

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