mark nsmb major obsolete

Systematize handling of removed drivers.

- Every driver that was removed and whose number hasn't already been
reused is now listed with a commented-out "obsolete" line.
- The format of these has been systematized. Future format changes can
probably be safely done with a script.
- This does not include a few cases of assignments that only lasted a
couple days, or stuff from before major reorgs. Some of these may
be included nonetheless, because there was a lot of ground to cover
and therefore not a lot of time to dig into history in detail.

Note that the obsolete listings do not mean the major numbers can
never be reused; that's up to portmasters and/or core. It does mean
that they won't be reused by accident, however, which in some cases
(depending on the driver, how widely used it was, its family of device
nodes, their default permissions, etc.) can be quite dangerous.

Note that some of the things now explicitly listed as obsolete are
really ancient history. My scan went back as far as when the majors
files were added. (But not before that.)

branches: 1.28.2;
Use same major for rx floppies for both b and c devices.
Works around a bug in the mscp disk driver, and solves PR port-vax/26138.

branches: 1.27.4;
USB for vax (similar to pmax; no/negligible impact on legacy):
* Add USB device files/majors.
* Make kernel configs with USB work.
* Provide a USB-enabled kernel config.

branches: 1.26.10;
Configury support for QVSS (from Charles Dickman)

Add audio support for VAXstation VLC, 60 and 90 machines. Originally rom
Blaz Antonic and ported from OpenBSD by Bj��rn Johannesso. Tested on VLC
and 4000/60.

branches: 1.24.2; 1.24.16;
- Add racd* devices for MSCP based CD-ROM drives (RRD40s), as opposed
to mixing them in with the ra* disks, modelled loosely on how MSCP
rx* floppies are handled
- racd* defaults to the same single iso9660 partition as cd*
- Cleanup config option handling slightly so any combination of ra*,
rx* (and now raccd*) can be defined without build errors.
- Avoid ugly printf when disks have all zero disklabel magic number

branches: 1.23.2; 1.23.8;
dependant -> dependent

Remove LKMs and switch to the module framework, pass 1.

Proposed on tech-kern@.

branches: 1.21.6; 1.21.10; 1.21.16; 1.21.18;
Remove systrace. Ok core@.

branches: 1.20.28; 1.20.34; 1.20.42;
s/independant/independent/, from Zafer.

branches: 1.19.20; 1.19.22;
merge ktrace-lwp.

make VMSWAP optional again.

revert "defflag VMSWAP" changes for now.
there seems to be far more people who don't want to edit
their kernel config files than i thought.

defflag VMSWAP.

branches: 1.15.2;
assign major for nsmb(4)

Change reference at bottom from sys/dev/majors to sys/conf/majors to match
reality

add major for 'ses' for archs which have the other scsi devices

add wsfont major to archs which have the other wscons devices

reassing majors for crypto and pf to use the newly defined MI major
range

update the comment - the space for machine-dependant majors
is reduced to 0-143
follows discussion on tech-kern

Add some framework for MI assignment of device majors - add sys/dev/majors
which is automatically included during kernel config, and add comments
to individual machine-dependant majors.* files to assign new MI majors
in MI file.

Range 0-191 is reserved for machine-specific assignments, range
192+ are MI assignments.

Follows recent discussion on tech-kern@

create /dev/crypto

reserve cdev major # for PF. ok'ed by technical-exec

branches: 1.6.2;
Add ksyms device major.

Add rf (RX01/02 floppy device driver)

Add the block-device-only devices.

Reported by ragge.

branches: 1.3.2;
assign majors for raw and cooked cgd's.

branches: 1.2.2;
Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.

- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.

- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.

branches: 1.1.2;
file majors.vax was initially added on branch gehenna-devsw.

Systematize handling of removed drivers.

- Every driver that was removed and whose number hasn't already been
reused is now listed with a commented-out "obsolete" line.
- The format of these has been systematized. Future format changes can
probably be safely done with a script.
- This does not include a few cases of assignments that only lasted a
couple days, or stuff from before major reorgs. Some of these may
be included nonetheless, because there was a lot of ground to cover
and therefore not a lot of time to dig into history in detail.

Note that the obsolete listings do not mean the major numbers can
never be reused; that's up to portmasters and/or core. It does mean
that they won't be reused by accident, however, which in some cases
(depending on the driver, how widely used it was, its family of device
nodes, their default permissions, etc.) can be quite dangerous.

Note that some of the things now explicitly listed as obsolete are
really ancient history. My scan went back as far as when the majors
files were added. (But not before that.)

Use same major for rx floppies for both b and c devices.
Works around a bug in the mscp disk driver, and solves PR port-vax/26138.

branches: 1.27.4;
USB for vax (similar to pmax; no/negligible impact on legacy):
* Add USB device files/majors.
* Make kernel configs with USB work.
* Provide a USB-enabled kernel config.

branches: 1.26.10;
Configury support for QVSS (from Charles Dickman)

Add audio support for VAXstation VLC, 60 and 90 machines. Originally rom
Blaz Antonic and ported from OpenBSD by Bj��rn Johannesso. Tested on VLC
and 4000/60.

branches: 1.24.2; 1.24.16;
- Add racd* devices for MSCP based CD-ROM drives (RRD40s), as opposed
to mixing them in with the ra* disks, modelled loosely on how MSCP
rx* floppies are handled
- racd* defaults to the same single iso9660 partition as cd*
- Cleanup config option handling slightly so any combination of ra*,
rx* (and now raccd*) can be defined without build errors.
- Avoid ugly printf when disks have all zero disklabel magic number

branches: 1.23.2; 1.23.8;
dependant -> dependent

Remove LKMs and switch to the module framework, pass 1.

Proposed on tech-kern@.

branches: 1.21.6; 1.21.10; 1.21.16; 1.21.18;
Remove systrace. Ok core@.

branches: 1.20.28; 1.20.34; 1.20.42;
s/independant/independent/, from Zafer.

branches: 1.19.20; 1.19.22;
merge ktrace-lwp.

make VMSWAP optional again.

revert "defflag VMSWAP" changes for now.
there seems to be far more people who don't want to edit
their kernel config files than i thought.

defflag VMSWAP.

branches: 1.15.2;
assign major for nsmb(4)

Change reference at bottom from sys/dev/majors to sys/conf/majors to match
reality

add major for 'ses' for archs which have the other scsi devices

add wsfont major to archs which have the other wscons devices

reassing majors for crypto and pf to use the newly defined MI major
range

update the comment - the space for machine-dependant majors
is reduced to 0-143
follows discussion on tech-kern

Add some framework for MI assignment of device majors - add sys/dev/majors
which is automatically included during kernel config, and add comments
to individual machine-dependant majors.* files to assign new MI majors
in MI file.

Range 0-191 is reserved for machine-specific assignments, range
192+ are MI assignments.

Follows recent discussion on tech-kern@

create /dev/crypto

reserve cdev major # for PF. ok'ed by technical-exec

branches: 1.6.2;
Add ksyms device major.

Add rf (RX01/02 floppy device driver)

Add the block-device-only devices.

Reported by ragge.

branches: 1.3.2;
assign majors for raw and cooked cgd's.

branches: 1.2.2;
Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.

- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.

- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.

branches: 1.1.2;
file majors.vax was initially added on branch gehenna-devsw.