kill some outdated stuff

new RCS ID format.

runs up to and including configure().
todo: exceptions, interrupt support, make isrs affect vector table
kernel/user stacks

Remove (again) things accidently revived by cvs tag...

add todo list for dev directory

Remove trailing whitespace.

branches: 1.2.230;
DMA, not dma nor Dma.

branches: 1.1.2;
New SCSI driver for the NCR5380, by David Jones.
Does DMA with interrupts. Much faster than our old
driver which did only PIO transfers. (Thanks David!)
Could be used on the amiga, and probably others...

Remove trailing whitespace.

branches: 1.9.202;
merge ktrace-lwp.

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.7.8;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

__KERNEL_RCSID()

branches: 1.5.6;
correct range check, have overflow check, fix type mismatches,
for cmap args and some other calls. from openbsd

branches: 1.4.4; 1.4.12; 1.4.14;
machine/fbio.h -> dev/sun/fbio.h

branches: 1.3.2;
Remove register prefixes.

branches: 1.2.44; 1.2.48;
Oops, sparc -> sun3

New frame-buffer support from Chuck Silvers (plus some tweaks from me)

merge ktrace-lwp.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.1.68;
New frame-buffer support from Chuck Silvers (plus some tweaks from me)

merge ktrace-lwp.

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.2.8;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.1.68;
New frame-buffer support from Chuck Silvers (plus some tweaks from me)

Make local dev_type_*() functions static.

Remove trailing whitespace.

branches: 1.37.2;
Remove unnecessary <sys/malloc.h>.

Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.

branches: 1.35.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.

branches: 1.34.30; 1.34.40; 1.34.46;
Split softc/device_t, with misc cosmetic changes.

branches: 1.33.2;
Use device_private() and device_lookup_private() to get softc
and to see if device unit is vaild.

branches: 1.32.38; 1.32.40; 1.32.42; 1.32.44;
Fix printf formats in #ifdef DEBUG.

branches: 1.31.2;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.30.14;
Use device_cfdata().

Use device_unit().

branches: 1.28.4; 1.28.6; 1.28.8; 1.28.10; 1.28.12;
merge ktrace-lwp.

branches: 1.27.2;
Move common Sun ID PROM definitions into <dev/sun/idprom.h>.

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.25.8;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

__KERNEL_RCSID()

branches: 1.23.6;
merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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.

Statements must follow labels.

branches: 1.17.4; 1.17.12;
machine/fbio.h -> dev/sun/fbio.h

branches: 1.16.2; 1.16.4;
remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.14.14; 1.14.24;
Rewrite the match/attch routines to use the P4 register
(when it exists). Also get the size right; other fixes.

Merge arch/sun3x into arch/sun3

branches: 1.12.2;
Update for changes to config.

Use vm_offset_t to represent control space addresses, because
they are more like physical addresses in that you can not just
dereference a pointer to access the space. (Also, if you use a
pointer type for such things, gdb will _try_ to deference it.)

branches: 1.10.4;
Get the screen size right on the 3/260 (Fixes PR#2402)

branches: 1.9.6;
Make this compile with -Werror -Wall -Wstrict-prototypes
(finally! yea!) Also get rid of __BROKEN_INDIRECT_CONFIG

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

New device attachment scheme:

- split softc size and match/attach out from cfdriver into
a new struct cfattach.

- new "attach" directive for files.*. May specify the name of
the cfattach structure, so that devices may be easily attached
to parents with different autoconfiguration semantics.

Allow unit != 0

branches: 1.4.2;
map --> mmap

map --> mmap

Changed fb_attach() interface

New frame-buffer support from Chuck Silvers (plus some tweaks from me)

merge ktrace-lwp.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.1.68;
New frame-buffer support from Chuck Silvers (plus some tweaks from me)

Make local dev_type_*() functions static.

Remove trailing whitespace.

branches: 1.32.2;
Remove unnecessary <sys/malloc.h>.

Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.

branches: 1.30.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.

branches: 1.29.30; 1.29.40; 1.29.46;
Split softc/device_t, with misc cosmetic changes.

branches: 1.28.2;
Use device_private() and device_lookup_private() to get softc
and to see if device unit is vaild.

branches: 1.27.40; 1.27.42; 1.27.44; 1.27.46;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.26.26;
merge ktrace-lwp.

branches: 1.25.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.24.8;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

__KERNEL_RCSID()

branches: 1.22.6;
merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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.

correct range check, have overflow check, fix type mismatches,
for cmap args and some other calls. from openbsd

branches: 1.16.4; 1.16.12; 1.16.14;
machine/fbio.h -> dev/sun/fbio.h

branches: 1.15.2;
Remove register prefixes.

use unsigned variable types as appropriate

branches: 1.13.4;
remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.11.16; 1.11.26;
Add: extern struct cfdriver cgtwo_cd;

Update for changes to config.

Clean up cg2match()

Make this compile with -Werror -Wall -Wstrict-prototypes
(finally! yea!) Also get rid of __BROKEN_INDIRECT_CONFIG

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

New device attachment scheme:

- split softc size and match/attach out from cfdriver into
a new struct cfattach.

- new "attach" directive for files.*. May specify the name of
the cfattach structure, so that devices may be easily attached
to parents with different autoconfiguration semantics.

map --> mmap

map --> mmap

It works now.

First cut at cgtwo driver. Not quite right yet.

Make local dev_type_*() functions static.

Remove trailing whitespace.

branches: 1.42.24;
malloc(9) -> kmem(9)

branches: 1.41.40;
Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.

branches: 1.40.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.

branches: 1.39.30; 1.39.40; 1.39.46;
Split softc/device_t, with misc cosmetic changes.

branches: 1.38.2;
Use device_private() and device_lookup_private() to get softc
and to see if device unit is vaild.

branches: 1.37.38; 1.37.40; 1.37.42; 1.37.44;
Fix printf formats in #ifdef DEBUG.

branches: 1.36.2;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.35.14;
Use device_cfdata().

Use device_unit().

branches: 1.33.4; 1.33.6; 1.33.8; 1.33.10; 1.33.12;
merge ktrace-lwp.

branches: 1.32.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.31.8;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

__KERNEL_RCSID()

branches: 1.29.6;
merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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.

correct range check, have overflow check, fix type mismatches,
for cmap args and some other calls. from openbsd

branches: 1.23.4; 1.23.12; 1.23.14;
machine/fbio.h -> dev/sun/fbio.h

branches: 1.22.2;
Remove register prefixes.

branches: 1.21.4;
remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.19.14; 1.19.24;
Simplify ifdefs in cg4b_ldcmap()

Make this work on the 3/80, which has the Brooktree DAC
wired high-byte-only like the sparc. (yuck!)

Deal with missing P4 register on old Sun3/60 machines.

Need to use an offset to map the colormap H/W now that the
config address is that of the P4 register. Oops.

Rewrite the match/attch routines to use the P4 register
(when it exists). Also get the size right; other fixes.

Simplify the colormap and blanking stuff a little.

branches: 1.13.2;
Update for changes to config.

Make this compile with -Werror -Wall -Wstrict-prototypes
(finally! yea!) Also get rid of __BROKEN_INDIRECT_CONFIG

Checkpoint new version of this driver with support for the "Type A"
variant of the CG4 (the one with the AMD colormap DACs). This has
been tested only on the "Type B" H/W at this point (Brooktree DACs).
Thanks to Ezra Story and Scott Ellis for the "Type A" support.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

Merge netbsd-1-2 branch back into mainline.

branches: 1.7.4;
New device attachment scheme:

- split softc size and match/attach out from cfdriver into
a new struct cfattach.

- new "attach" directive for files.*. May specify the name of
the cfattach structure, so that devices may be easily attached
to parents with different autoconfiguration semantics.

fix typo

map --> mmap

map --> mmap

Fix that probe sequence right this time.

Changed fb_attach() interface, hack probe to avoid impossible matches.
Corrected fbtype->fb_size (which x11r6 is picky about...)

New frame-buffer support from Chuck Silvers (plus some tweaks from me)

merge ktrace-lwp.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.5.48;
No need for default base addresses here anymore.

Define the CG4B_OFF_* values to be relative to the location of
the P4 register so the probe routine finds the P4 at off=0.

Checkpoint new version of this driver with support for the "Type A"
variant of the CG4 (the one with the AMD colormap DACs). This has
been tested only on the "Type B" H/W at this point (Brooktree DACs).
Thanks to Ezra Story and Scott Ellis for the "Type A" support.

Corrected fbtype->fb_size (which x11r6 is picky about...)

New frame-buffer support from Chuck Silvers (plus some tweaks from me)

Remove trailing whitespace.

branches: 1.24.2;
Remove unnecessary <sys/malloc.h>.

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)

branches: 1.22.36; 1.22.38;
Fix botch on device_t/softc split in #if 0'ed debug printf. from chs@

branches: 1.21.14; 1.21.24;
replace bitmask_snprintf(9) with snprintb(3)

branches: 1.20.4; 1.20.12;
Split device_t/softc for MI ncr53c9x and some related devices,
with various cleanup.

branches: 1.19.40;
Add (char *) casts on pointer arith.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.17.2;
Make esp and its dma on 3/80 use bus_dma(9).

XXX: Maybe we should consider to use MI sys/dev/ic/lsi64854.c.

branches: 1.16.20;
merge ktrace-lwp.

branches: 1.15.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.14.8;
__KERNEL_RCSID()

branches: 1.13.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.10.2; 1.10.22; 1.10.26;
Make "dma" a real device so it can attach before esp.
Also pull in some changes from the sparc version.

Printf format warning cleanup.

Merge arch/sun3x into arch/sun3

branches: 1.7.4;
fix warnings

Merge scsipi branch in the mainline. This add support for ATAPI devices
(currently only CD-ROM drives on i386). The sys/dev/scsipi system provides 2
busses to which devices can attach (scsibus and atapibus). This needed to
change some include files and structure names in the low level scsi drivers.

branches: 1.5.2; 1.5.4;
Duplicate changes recently made to the SPARC version of this file:
Do not print warnings if selection of a target via DMA was interrupted
by another target.

Now using dev/ic/ncr53c9x.c

New ARP system, supports IPv4 over any hardware link.

Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will
only support Ethernet. Tcpdump itself should be ok, but libpcap needs
lot of work.

For the detailed change history, look at the commit log entries for
the is-newarp branch.

branches: 1.2.2;
No need for dma_cd, so move it into the #if 0 section too.

branches: 1.1.1;
Initial revision

Make esp and its dma on 3/80 use bus_dma(9).

XXX: Maybe we should consider to use MI sys/dev/ic/lsi64854.c.

branches: 1.5.20;
merge ktrace-lwp.

branches: 1.4.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.3.2; 1.3.42; 1.3.50;
Make "dma" a real device so it can attach before esp.
Also pull in some changes from the sparc version.

New ARP system, supports IPv4 over any hardware link.

Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will
only support Ethernet. Tcpdump itself should be ok, but libpcap needs
lot of work.

For the detailed change history, look at the commit log entries for
the is-newarp branch.

branches: 1.1.1; 1.1.2;
Initial revision

Split device_t/softc for MI ncr53c9x and some related devices,
with various cleanup.

branches: 1.9.40;
Minor space nits.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.7.2;
Make esp and its dma on 3/80 use bus_dma(9).

XXX: Maybe we should consider to use MI sys/dev/ic/lsi64854.c.

branches: 1.6.20;
merge ktrace-lwp.

branches: 1.5.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.4.2; 1.4.42; 1.4.50;
Make "dma" a real device so it can attach before esp.
Also pull in some changes from the sparc version.

Now using dev/ic/ncr53c9x.c

New ARP system, supports IPv4 over any hardware link.

Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will
only support Ethernet. Tcpdump itself should be ok, but libpcap needs
lot of work.

For the detailed change history, look at the commit log entries for
the is-newarp branch.

branches: 1.1.1; 1.1.2;
Initial revision

Remove trailing whitespace.

branches: 1.34.24;
malloc(9) -> kmem(9)

branches: 1.33.8;
in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)

branches: 1.31.82; 1.31.84;
Split softc/device_t, with misc cosmetic changes.

branches: 1.30.2; 1.30.4;
Remove clause 3 and 4 from TNF licenses

branches: 1.29.40; 1.29.42; 1.29.44;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.28.26;
merge ktrace-lwp.

branches: 1.27.2;
Move common Sun ID PROM definitions into <dev/sun/idprom.h>.

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.25.8;
__KERNEL_RCSID()

branches: 1.24.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.21.6;
bcopy() -> memcpy(), bzero() -> memset()

branches: 1.20.2;
(locally defined) HZ -> hz

don't abuse cf_unit.

branches: 1.18.26;
Merge arch/sun3x into arch/sun3

branches: 1.17.2;
Update for changes to config.

No longer needs an early init call (just normal autoconfig).

Read the EEPROM once at attach time, then do user I/O on the copy.
Make /dev/eeprom support normal "read to EOF" behaviour.
Removed ee_console, ee_get_byte (dead code).

Fix copyrights (/s/REGENTS/FOUNDATION/)

Make this compile with -Werror -Wall -Wstrict-prototypes
(finally! yea!) Also get rid of __BROKEN_INDIRECT_CONFIG

Most files that were copyright Adam Glass and/or Gordon W. Ross
are now copyright The NetBSD Foundation (rights assigned).

Get rid of some cruft in the match function.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

New autoconfig design that controls attach order.

New device attachment scheme:

- split softc size and match/attach out from cfdriver into
a new struct cfattach.

- new "attach" directive for files.*. May specify the name of
the cfattach structure, so that devices may be easily attached
to parents with different autoconfiguration semantics.

Fix missing return(0) - from Jason Thorpe - fixes PR 1049

Provide ee_console for drivers.

New autoconfig interface to support VME, etc.

Lots of changes. Fairly stable now.

new RCS ID format.

branches: 1.1.2;
New functions to handle writing EEPROM with correct delay.
Also provides ee_get_byte() for early use by other drivers.

Remove trailing whitespace.

branches: 1.29.2;
fix various typos in word `interrupt', mainly in comments.

Remove clause 3 and 4 from TNF licenses

branches: 1.27.2; 1.27.4;
Split device_t/softc for MI ncr53c9x and some related devices,
with various cleanup.

branches: 1.26.40;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.25.2;
Make esp and its dma on 3/80 use bus_dma(9).

XXX: Maybe we should consider to use MI sys/dev/ic/lsi64854.c.

Use bus_space(9).

branches: 1.23.8;
Use device_unit().

branches: 1.22.2;
Use the SI capitalization for "Hz", "kHz", and "MHz" in comments and strings.
Add a space between numbers and Hz unit.

branches: 1.21.4; 1.21.6; 1.21.8; 1.21.10;
merge ktrace-lwp.

branches: 1.20.6;
Enable NCR_F_DMASELECT to use DMA xfer on command/selection phase.

It didn't work on sun3x when I and gwr tried back in April 1999,
but now it just works fine.

branches: 1.19.2;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.18.8;
__KERNEL_RCSID()

branches: 1.17.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.14.2; 1.14.8;
Pull up the thorpej_scsipi branch to main branch.
This is a completely rewritten scsipi_xfer execution engine, and the
associated changes to HBA drivers. Overview of changes & features:
- All xfers are queued in the mid-layer, rather than doing so in an
ad-hoc fashion in individual adapter drivers.
- Adapter/channel resource management in the mid-layer, avoids even trying
to start running an xfer if the adapter/channel doesn't have the resources.
- Better communication between the mid-layer and the adapters.
- Asynchronous event notification mechanism from adapter to mid-layer and
peripherals.
- Better peripheral queue management: freeze/thaw, sorted requeueing during
recovery, etc.
- Clean separation of peripherals, adapters, and adapter channels (no more
scsipi_link).
- Kernel thread for each scsipi_channel makes error recovery much easier
(no more dealing with interrupt context when recovering from an error).
- Mid-layer support for tagged queueing: commands can have the tag type
set explicitly, tag IDs are allocated in the mid-layer (thus eliminating
the need to use buggy tag ID allocation schemes in many adapter drivers).
- support for QUEUE FULL and CHECK CONDITION status in mid-layer; the command
will be requeued, or a REQUEST SENSE will be sent as appropriate.

Just before the merge syssrc has been tagged with thorpej_scsipi_beforemerge

use NCR_F_DMASELECT instead of ncr53c9x_dmaselect

branches: 1.12.4;
Have MI ncr53c9x_attach() the 2nd and 3rd arguments for scsipi_adater
and scsipi_device respectively, with size reduction of ncr53c9x_softc.
Specifying NULL instructs the driver to use default adapter and default
device codes. Every target port has ncr53c9x_attach(sc, NULL, NULL) anyway.

Implement the more flexiable `evcnt' interface as discussed (briefly) on
tech-kern and now documented in evcnt(9).

branches: 1.10.2; 1.10.8; 1.10.16;
Make "dma" a real device so it can attach before esp.
Also pull in some changes from the sparc version.

Adapt to the new scsipi_adapter interface.

Garbage-collect the open_target_lu and close_target_lu entry points from
struct scsipi_adapter; they were not used.

Add a scsipi_ioctl entry point to struct scsipi_adapter. This will be
used to issue ioctl commands to the host adapters.

Inspired by PR #6090, from Matt Jacob.

Merge arch/sun3x into arch/sun3

branches: 1.6.4;
Update for config changes.

Merge scsipi branch in the mainline. This add support for ATAPI devices
(currently only CD-ROM drives on i386). The sys/dev/scsipi system provides 2
busses to which devices can attach (scsibus and atapibus). This needed to
change some include files and structure names in the low level scsi drivers.

branches: 1.4.2; 1.4.4;
Add reference to DMA selection variable used in dev/ic/ncr53c9x.c and sample
code to enable it. Currently commented out.

Now using dev/ic/ncr53c9x.c

New ARP system, supports IPv4 over any hardware link.

Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will
only support Ethernet. Tcpdump itself should be ok, but libpcap needs
lot of work.

For the detailed change history, look at the commit log entries for
the is-newarp branch.

branches: 1.1.1; 1.1.2;
Initial revision

Update for the new z8530 driver

Export some headers that X will want, and minor clean-up.

Lots of changes. Fairly stable now.

new RCS ID format.

boots, presents shell prompt, and doesn't crash immediately

Update for the new z8530 driver

Lots of changes. Fairly stable now.

new RCS ID format.

boots, presents shell prompt, and doesn't crash immediately

Make local dev_type_*() functions static.

Remove trailing whitespace.

branches: 1.16.64;
Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.

branches: 1.15.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.

branches: 1.14.78; 1.14.88; 1.14.94;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.13.26;
merge ktrace-lwp.

branches: 1.12.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.11.8;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

__KERNEL_RCSID()

branches: 1.9.6;
merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe

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: 1.7.4; 1.7.12;
machine/fbio.h -> dev/sun/fbio.h

branches: 1.6.2; 1.6.4;
Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.5.14; 1.5.24;
Add fb_eeprom_setsize() for setting the FB size based on the EEPROM
value (to be used only if unit=0). Add P4 helper functions:
fb_pfour_id, fb_pfour_setsize, fb_pfour_{get,set}_video

Make this compile with -Werror -Wall -Wstrict-prototypes
(finally! yea!) Also get rid of __BROKEN_INDIRECT_CONFIG

map --> mmap

Changed fb_attach() interface

New frame-buffer support from Chuck Silvers (plus some tweaks from me)

sys: Fix various abuse of struct device internals.

Will help to make struct device opaque later.

Split softc/device_t, with misc cosmetic changes.

branches: 1.12.40; 1.12.44; 1.12.46; 1.12.48;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.11.4;
Make sun3 use common sun68k/sun68k/isr.c, sun68k/include/cpu.h and
sun68k/include/intr.h.

This also means now sun3 has GENERIC_SOFT_INTERRUPTS support,
so also adapt fd.c and zs.c to MI softintr(9) APIs.

(I'll also update related sources in yamt-splraiseipl branch later)

branches: 1.10.20; 1.10.22;
merge ktrace-lwp.

branches: 1.9.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.8.8;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.7.6;
merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe

branches: 1.6.2; 1.6.4; 1.6.8;
Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.5.14; 1.5.24;
Add fb_eeprom_setsize() for setting the FB size based on the EEPROM
value (to be used only if unit=0). Add P4 helper functions:
fb_pfour_id, fb_pfour_setsize, fb_pfour_{get,set}_video

Make this compile with -Werror -Wall -Wstrict-prototypes
(finally! yea!) Also get rid of __BROKEN_INDIRECT_CONFIG

Fix typo (fbattach => fb_attach)

Changed fb_attach() interface

New frame-buffer support from Chuck Silvers (plus some tweaks from me)

Make local dev_type_*() functions static.

Remove trailing whitespace.

branches: 1.87.10;
s/auxillary/auxiliary/ in comments.

Merge thorpej-cfargs2.

branches: 1.85.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

branches: 1.84.2;
malloc(9) -> kmem(9)

branches: 1.83.8;
in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.

make *fd*.c's fd_dev_to_type() always a static inline. some
have it as a const, and have code to copy the defaults to
modify them before using them, but that probably requires a
real test to feel confident in changing.

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)

branches: 1.80.16; 1.80.18;
Use C99-style initializers for struct dkdriver.

We have three sets of DTYPE_ constants in the kernel:
altq Drop Type
disklabel Disk Type
file Descriptor Type
(not to mention constants that contain the string DTYPE).
Let's make them two, by changing the disklabel one to be DisK TYPE since the
other disklabel constants seem to do that. Not many userland programs use
these constants (and the ones that they do are mostly in ifdefs). They will
be fixed shortly.

branches: 1.78.2;
Sync with sparc/dev/fd.c rev 1.155.

> Fix panic() on opening fd(4), caused by a wrong pointer passed to memset().

Note sun3 still uses gcc 4.5.4 but also panicked by this old bug,
so probably this problem was triggered by not gcc 4.8 but struct disk
changes (struct disk_geom was added in <sys/disk.h> rev 1.58),
which increased sizeof(struct fd_softc) from 248 bytes to 296 bytes.
(i.e. now struct fd_softc could be allocated in a different pool block,
probably near the wrong pointer of the struct disklabel)

Anyway, this fix should be pullued up to netbsd-7.
(probably I'm the only user of floppy on sun3 though)

branches: 1.77.2;
Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.

Add d_discard to all struct bdevsw instances I could find.

I've set them all to nodiscard. Some of them (wd, dk, vnd, ld,
raidframe, maybe cgd) should be implemented for real.

branches: 1.75.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.

branches: 1.74.2;
fix compile problems.

struct device * -> device_t, struct cfdata * -> cfdata_t
use device_xname() (from chs@)

branches: 1.72.2; 1.72.8; 1.72.12; 1.72.14; 1.72.16;
apply some static.

Make local functions static.

Replace shutdownhook_establish(9) with pmf_device_register1(9).
Tested on 3/80.

g/c BUFQ_FOO() macros and use bufq_foo() directly.

replace bitmask_snprintf(9) with snprintb(3)

Make compile this with options DIAGNOSTIC.

branches: 1.66.2; 1.66.4; 1.66.6;
Pull some fdformat fixes from sys/arch/sparc/dev/fd.c.

Split softc/device_t, with misc cosmetic changes.

branches: 1.64.2;
Use device_private() and device_lookup_private() in more places.

Use device_private() and device_lookup_private() to get softc.

branches: 1.62.6; 1.62.8; 1.62.10; 1.62.12;
Add missing mutex for cv_timedwait.

Merge vmlocking2 to head.

branches: 1.60.4;
Adapt sun68k ports to recent interrupt handling changes.

XXX: sun2 (m68010) doesn't have CAS instructions.

branches: 1.59.2; 1.59.4;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

Merge disk init changes from the vmlocking branch. These seperate init /
destroy of 'struct disk' from attach / detach.

branches: 1.57.4; 1.57.6; 1.57.8;
It's not a good idea for device drivers to modify b_flags, as they don't
need to understand the locking around that field. Instead of setting
B_ERROR, set b_error instead. b_error is 'owned' by whoever completes
the I/O request.

branches: 1.56.2; 1.56.4;
Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

branches: 1.55.2; 1.55.4; 1.55.10;
Add (char *) casts on pointer arith.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.53.2;
Rename the B_XXX flag to B_DEVPRIVATE flag since it was never used for
debugging and its main use is in device drivers. Its used there to signal
that the flagged buffer has a special meaning or should be handled
differently.

OK'd by Bill Sudenmund on tech-kern.

Make this compile with FD_DEBUG.

Use IPL_BIO rather than (temporarily defined) IPL_SOFT_LEVEL2.
Both of them share cpu ipl 2, and maybe it's intentional design
since fd.c uses ipl 6 for hardware interrupt.

Make sun3 use common sun68k/sun68k/isr.c, sun68k/include/cpu.h and
sun68k/include/intr.h.

This also means now sun3 has GENERIC_SOFT_INTERRUPTS support,
so also adapt fd.c and zs.c to MI softintr(9) APIs.

(I'll also update related sources in yamt-splraiseipl branch later)

branches: 1.49.2; 1.49.4;
Fix a -Wshadow error.

Follow up i/o statistics collection conversion, patterned after the sparc fd.c.

branches: 1.47.2; 1.47.4; 1.47.6;
Use device_parent().

branches: 1.46.2; 1.46.4; 1.46.6;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

- change the way to specify a bufq strategy. (by string rather than by number)
- rather than embedding bufq_state in driver softc,
have a pointer to the former.
- move bufq related functions from kern/subr_disk.c to kern/subr_bufq.c.
- rename method to strategy for consistency.
- move some definitions which don't need to be exposed to the rest of kernel
from sys/bufq.h to sys/bufq_impl.h.
(is it better to move it to kern/ or somewhere?)
- fix some obvious breakage in dev/qbus/ts.c. (not tested)

branches: 1.43.2;
Constify.

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.41.4;
move buffer queue related stuffs from buf.h to their own header, bufq.h.

Remove my name from the old UCB copyright notice, thereby reducing its
reference count to 1.

TAB/space cleanup.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

__KERNEL_RCSID()

branches: 1.36.2;
don't #include <sys/dkstat.h> where it is (appearently) unused

Correct a diagnostic printf format specifier.

Use aprint_normal() for cfprint routines.

implement separate read/write disk statistics:
- disk_unbusy() gets a new parameter to tell the IO direction.
- struct disk_sysctl gets 4 new members for read/write bytes/transfers.
when processing hw.diskstats, add the read&write bytes/transfers for
the old combined stats to attempt to keep backwards compatibility.

unfortunately, due to multiple bugs, this will cause new kernels and old
vmstat/iostat/systat programs to fail. however, the next time this is
change it will not fail again.

this is just the kernel portion.

merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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.

Fix a bug from last commit: Look for more work AFTER the current buf
is removed from the queue.

Convert to new device buffer queue interface.

Approved by: Nathan J. Williams <nathanw@netbsd.org>

branches: 1.25.2; 1.25.6; 1.25.14;
bcopy() -> memcpy(), bzero() -> memset()

Remove register prefixes.

branches: 1.23.2;
Correct various misspellings of 'transfer' and inflected forms.

In fdioctl(), allocate fd_formb dynamically when needed, rather than on
the stack, and remove the no-longer-necessary PHOLD()/PRELE() calls
in fdformat().

(This eliminates 1/3 of the instances of PHOLD()/PRELE() in the kernel code.)

XXX We still have too many mostly-redundant floppy drivers.

remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

Implement the more flexiable `evcnt' interface as discussed (briefly) on
tech-kern and now documented in evcnt(9).

branches: 1.19.2;
Nuke dk_establish() from orbit except from those ports which still use
it to determine the boot device: mvme68k, pc532, macppc, ofppc. Those
platforms should be changed to use device_register(). In the mean time,
those ports defined __BROKEN_DK_ESTABLISH.

Use separate callouts for motor-on and motor-off. Fixes a condition
where the floppy driver would wedge because a motor-on timeout would
be cancelled by another I/O operation cancelling a motor-off timeout.

From enami tsugutomo <enami@sm.sony.co.jp>.

Add include <vm/vm.h> and <uvm/uvm_extern.h> for
declaration of uvm_swapin(), which is no longer in <sys/proc.h>.

New callout mechanism with two major improvements over the old
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
resource allocation.
- Insertion and removal of callouts is constant time, important as
this facility is used quite a lot in the kernel.

The old timeout()/untimeout() API has been removed from the kernel.

Fix a bug in disksort_*() which caused non-optimal ordering when multiple
active partitions were on a single spindle. Add a b_rawblkno member to
struct buf which contains the non-partition-relative block number to sort
by.

Fix part of previous commit.

BUFQ_* fixes.

Update for sys/buf.h/disksort_*() changes.

branches: 1.11.8; 1.11.14;
Change DIOCEJECT to do what's needed to eject a device before the eject
command (unlock for sd and cd) if no other partitions are open, return
EBUSY otherwise. DIOCEJECT will have the old semantic if its argument is not
0. The old ioctl has been renamed to ODIOCEJECT for binary compatibility.

Make copyright notices with my name consistent.

Print a complaint when no children were specified
in the config file. Better than a link error...

defopt DDB.

Merge arch/sun3x into arch/sun3

branches: 1.6.4;
Add: extern struct cfdriver fdc_cd;

Update for config changes.

When turning off the drive motor, de-select the drive so the busy light
extinguishes.

Prevent RAM disk hooks from compiling until sun3 md_root.c can support
ram disk images that are read in from the outside.
Sync with some old local changes.

Fixed OBIO locators bug, so this can do the normal thing now.
Also improved handling of spurious interrupts, and sync up with
the sparc version.

First working version.

merge ktrace-lwp.

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.2.8;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.1.50;
First working version.

dependant -> dependent

Remove clause 3 and 4 from TNF licenses

branches: 1.5.74; 1.5.76; 1.5.78;
merge ktrace-lwp.

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.3.2; 1.3.10;
DMA, not dma nor Dma.

Assign my copyrights to TNF.

First working version.

New ARP system, supports IPv4 over any hardware link.

Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will
only support Ethernet. Tcpdump itself should be ok, but libpcap needs
lot of work.

For the detailed change history, look at the commit log entries for
the is-newarp branch.

Replace caddr_t with u_int in device structs.
Reduce MAXMCAST by a few to be safe.

branches: 1.4.6;
Increase MAXMCAST from 50 to 250 (to match dev/ic/i82586.h).

Note that this should be merged with dev/ic/i82586reg.h

Updated ie driver based on i386 version 1.30

New autoconfig interface to support VME, etc.

Merge arch/sun3x into arch/sun3

branches: 1.21.4;
Sync. with the sun3x (mostly cosmetic changes).

Use vm_offset_t to represent control space addresses, because
they are more like physical addresses in that you can not just
dereference a pointer to access the space. (Also, if you use a
pointer type for such things, gdb will _try_ to deference it.)

branches: 1.19.4;
Sync. up with the sun3x version.

Nuke sunmon.h, add machdep.h

Use sunmon_abort() instead of mon_panic()
Let idprom_init() have void return.

Fix copyrights (/s/REGENTS/FOUNDATION/)

Make this compile with -Werror -Wall -Wstrict-prototypes
(finally! yea!) Also get rid of __BROKEN_INDIRECT_CONFIG

Kill some dead code.

Most files that were copyright Adam Glass and/or Gordon W. Ross
are now copyright The NetBSD Foundation (rights assigned).

New autoconfig design that controls attach order.

New device attachment scheme:

- split softc size and match/attach out from cfdriver into
a new struct cfattach.

- new "attach" directive for files.*. May specify the name of
the cfattach structure, so that devices may be easily attached
to parents with different autoconfiguration semantics.

Moved some functions here from sun3_startup.c

New autoconfig interface to support VME, etc.

Lots of changes. Fairly stable now.

new RCS ID format.

Tracking 4.4 integration

runs up to and including configure().
todo: exceptions, interrupt support, make isrs affect vector table
kernel/user stacks

stuff to make them compile properly

gets to consinit() and blows up

make idprom compile, and a bogus OBIO addr

added /dev/idprom driver :), doesn't compile yet

fix spelling mistakes, mainly in comments and log messages.

fix various typos in comments, mainly copypasta.

Don't bother with IFF_OACTIVE. Just keep processing so long as
sc->xmit_busy is less than sc->ntxbuf.

Adopt <net/if_stats.h>.

branches: 1.70.4;
Use ETHER_LOCK()/ETHER_UNLOCK() for all ethernet drivers to protect ec_multi*.

Whitespace fix (mainly tabify).

-No functional change:
- KNF
- u_int*_t -> uint*_t.

Remove very old IFF_NOTRAILERS flag.

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)

branches: 1.65.2;
Implement the BPF direction filter (BIOC[GS]DIRECTION). It provides backward
compatibility with BIOC[GS]SEESENT ioctl. The userland interface is the same
as FreeBSD.

This change also fixes a bug that the direction is misunderstand on some
environment by passing the direction to bpf_mtap*() instead of checking
m->m_pkthdr.rcvif.

Remove bpf_tap() in iexmit() because ie_start() does bpf_mtap().

It's not required to include net/bpfdesc.h. Remove it.

branches: 1.62.6; 1.62.12;
Apply deferred if_start to more MD drivers.

branches: 1.61.2;
Move bpf_mtap and if_ipackets++ on Rx of each driver to percpuq if_input

The benefits of the change are:
- We can reduce codes
- We can provide the same behavior between drivers
- Where/When if_ipackets is counted up
- Note that some drivers still update packet statistics in their own
way (periodical update)
- Moved bpf_mtap run in softint
- This makes it easy to MP-ify bpf

Proposed on tech-kern and tech-net

Remove obsolete ancient optimization for bpf

The optimization code was obsoleted over 15 years ago.
We can remove it safely.

branches: 1.59.2;
KNF. Remove extra spaces. No functional change.

Introduce m_set_rcvif and m_reset_rcvif

The API is used to set (or reset) a received interface of a mbuf.
They are counterpart of m_get_rcvif, which will come in another
commit, hide internal of rcvif operation, and reduce the diff of
the upcoming change.

No functional change.

Introduce softint-based if_input

This change intends to run the whole network stack in softint context
(or normal LWP), not hardware interrupt context. Note that the work is
still incomplete by this change; to that end, we also have to softint-ify
if_link_state_change (and bpf) which can still run in hardware interrupt.

This change softint-ifies at ifp->if_input that is called from
each device driver (and ieee80211_input) to ensure Layer 2 runs
in softint (e.g., ether_input and bridge_input). To this end,
we provide a framework (called percpuq) that utlizes softint(9)
and percpu ifqueues. With this patch, rxintr of most drivers just
queues received packets and schedules a softint, and the softint
dequeues packets and does rest packet processing.

To minimize changes to each driver, percpuq is allocated in struct
ifnet for now and that is initialized by default (in if_attach).
We probably have to move percpuq to softc of each driver, but it's
future work. At this point, only wm(4) has percpuq in its softc
as a reference implementation.

Additional information including performance numbers can be found
in the thread at tech-kern@ and tech-net@:
http://mail-index.netbsd.org/tech-kern/2016/01/14/msg019997.html

Acknowledgment: riastradh@ greatly helped this work.
Thank you very much!

Remove leftover use of AF_NS and NS option

Unnecessary NETISR_NS is also removed.

branches: 1.55.18; 1.55.36;
Push the bpf_ops usage back into bpf.h. Push the common ifp->if_bpf
check into the inline functions as well the fourth argument for
bpf_attach.

branches: 1.54.2; 1.54.4;
Redefine bpf linkage through an always present op vector, i.e.
#if NBPFILTER is no longer required in the client. This change
doesn't yet add support for loading bpf as a module, since drivers
can register before bpf is attached. However, callers of bpf can
now be modularized.

Dynamically loadable bpf could probably be done fairly easily with
coordination from the stub driver and the real driver by registering
attachments in the stub before the real driver is loaded and doing
a handoff. ... and I'm not going to ponder the depths of unload
here.

Tested with i386/MONOLITHIC, modified MONOLITHIC without bpf and rump.

bcmp -> memcmp

branches: 1.52.4;
*** Summary ***

When a link-layer address changes (e.g., ifconfig ex0 link
02:de:ad:be:ef:02 active), send a gratuitous ARP and/or a Neighbor
Advertisement to update the network-/link-layer address bindings
on our LAN peers.

Refuse a change of ethernet address to the address 00:00:00:00:00:00
or to any multicast/broadcast address. (Thanks matt@.)

Reorder ifnet ioctl operations so that driver ioctls may inherit
the functions of their "class"---ether_ioctl(), fddi_ioctl(), et
cetera---and the class ioctls may inherit from the generic ioctl,
ifioctl_common(), but both driver- and class-ioctls may override
the generic behavior. Make network drivers share more code.

Distinguish a "factory" link-layer address from others for the
purposes of both protecting that address from deletion and computing
EUI64.

Return consistent, appropriate error codes from network drivers.

Improve readability. KNF.

*** Details ***

In if_attach(), always initialize the interface ioctl routine,
ifnet->if_ioctl, if the driver has not already initialized it.
Delete if_ioctl == NULL tests everywhere else, because it cannot
happen.

In the ioctl routines of network interfaces, inherit common ioctl
behaviors by calling either ifioctl_common() or whichever ioctl
routine is appropriate for the class of interface---e.g., ether_ioctl()
for ethernets.

Stop (ab)using SIOCSIFADDR and start to use SIOCINITIFADDR. In
the user->kernel interface, SIOCSIFADDR's argument was an ifreq,
but on the protocol->ifnet interface, SIOCSIFADDR's argument was
an ifaddr. That was confusing, and it would work against me as I
make it possible for a network interface to overload most ioctls.
On the protocol->ifnet interface, replace SIOCSIFADDR with
SIOCINITIFADDR. In ifioctl(), return EPERM if userland tries to
invoke SIOCINITIFADDR.

In ifioctl(), give the interface the first shot at handling most
interface ioctls, and give the protocol the second shot, instead
of the other way around. Finally, let compatibility code (COMPAT_OSOCK)
take a shot.

Pull device initialization out of switch statements under
SIOCINITIFADDR. For example, pull ..._init() out of any switch
statement that looks like this:

switch (...->sa_family) {
case ...:
..._init();
...
break;
...
default:
..._init();
...
break;
}

Rewrite many if-else clauses that handle all permutations of IFF_UP
and IFF_RUNNING to use a switch statement,

switch (x & (IFF_UP|IFF_RUNNING)) {
case 0:
...
break;
case IFF_RUNNING:
...
break;
case IFF_UP:
...
break;
case IFF_UP|IFF_RUNNING:
...
break;
}

unifdef lots of code containing #ifdef FreeBSD, #ifdef NetBSD, and
#ifdef SIOCSIFMTU, especially in fwip(4) and in ndis(4).

In ipw(4), remove an if_set_sadl() call that is out of place.

In nfe(4), reuse the jumbo MTU logic in ether_ioctl().

Let ethernets register a callback for setting h/w state such as
promiscuous mode and the multicast filter in accord with a change
in the if_flags: ether_set_ifflags_cb() registers a callback that
returns ENETRESET if the caller should reset the ethernet by calling
if_init(), 0 on success, != 0 on failure. Pull common code from
ex(4), gem(4), nfe(4), sip(4), tlp(4), vge(4) into ether_ioctl(),
and register if_flags callbacks for those drivers.

Return ENOTTY instead of EINVAL for inappropriate ioctls. In
zyd(4), use ENXIO instead of ENOTTY to indicate that the device is
not any longer attached.

Add to if_set_sadl() a boolean 'factory' argument that indicates
whether a link-layer address was assigned by the factory or some
other source. In a comment, recommend using the factory address
for generating an EUI64, and update in6_get_hw_ifid() to prefer a
factory address to any other link-layer address.

Add a routing message, RTM_LLINFO_UPD, that tells protocols to
update the binding of network-layer addresses to link-layer addresses.
Implement this message in IPv4 and IPv6 by sending a gratuitous
ARP or a neighbor advertisement, respectively. Generate RTM_LLINFO_UPD
messages on a change of an interface's link-layer address.

In ether_ioctl(), do not let SIOCALIFADDR set a link-layer address
that is broadcast/multicast or equal to 00:00:00:00:00:00.

Make ether_ioctl() call ifioctl_common() to handle ioctls that it
does not understand.

In gif(4), initialize if_softc and use it, instead of assuming that
the gif_softc and ifp overlap.

Let ifioctl_common() handle SIOCGIFADDR.

Sprinkle rtcache_invariants(), which checks on DIAGNOSTIC kernels
that certain invariants on a struct route are satisfied.

In agr(4), rewrite agr_ioctl_filter() to be a bit more explicit
about the ioctls that we do not allow on an agr(4) member interface.

bzero -> memset. Delete unnecessary casts to void *. Use
sockaddr_in_init() and sockaddr_in6_init(). Compare pointers with
NULL instead of "testing truth". Replace some instances of (type
*)0 with NULL. Change some K&R prototypes to ANSI C, and join
lines.

branches: 1.51.2; 1.51.4;
Split softc/device_t, with misc cosmetic changes.

branches: 1.50.16; 1.50.20; 1.50.22; 1.50.24;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

Remove a now-unused local variable.

Change a bazillion occurrences of code resembling this,

error = (cmd == SIOCADDMULTI) ?
ether_addmulti(ifr, &sc->sc_ec) :
ether_delmulti(ifr, &sc->sc_ec);

if (error == ENETRESET) {

to this,

if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) {

which does the same thing.

(A bazillion is a very large number. This seems to make the i386
ALL kernel smaller by 3kB to 4kB.)

Use ifreq_getaddr() twice in es(4).

Whitespace nits.

branches: 1.47.2;
Constify.

branches: 1.46.2; 1.46.10; 1.46.14; 1.46.18;
Use proper casts.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.44.26;
merge ktrace-lwp.

branches: 1.43.2;
Appease gcc -Wcast-qual by __UNVOLATILE().

Avoid NULL pointer dereference in case of #if NBPFILTER == 0.
Closes PR port-sun3/21699.

branches: 1.41.6;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.40.4;
When adding/deleting multicast addresses, only whack the address
filter if the interface is marked RUNNING.

Fixes kern/27678.

branches: 1.39.2; 1.39.4;
__KERNEL_RCSID()

branches: 1.38.2;
bzero the part of the buffer used to pad the packet to
ETHER_MIN_LEN - ETHER_CRC_LEN.

branches: 1.37.6; 1.37.16;
- bcopy() -> memcpy(), strcpy()
- bcmp() -> (static inline) ether_cmp()
- 6 -> ETHER_ADDR_LEN

Remove register prefixes.

branches: 1.35.4;
Move bpfattach()/bpfdetach() calls into ether_ifattach()/ether_ifdetach().

Move the check for "promisc + unicast + not for us" into ether_input(),
and change Ethernet drivers to always pass all received frames to
ether_input() (with a few exceptions, which are documented in the
code).

remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

branches: 1.32.2;
fix typo in previous commit. fixes PR 7879.

Copy alignment fix from dev/ic/i82586.c (Um, this extra copy should die,
too, but at least it's not as bad as the podulebus ie driver).

Rework layer 2 protocol input routines. Instead of calling e.g. ether_input()
directly, call the function pointer (*if_input)(ifp, m). The input routine
expects the packet header to be at the head of the packet, and will adjust
as necessary. Privatize the layer 2 input and output routines, allowing
*_ifattach() to set them up as appropriate.

branches: 1.29.4;
Use ETHER_*_LEN constants from <net/if_ether.h> instead of defining them
ourselves.

branches: 1.28.4;
Update for bcopy/bzero -> memcpy/memset changes.

Make copyright notices with my name consistent.

defopt NS, NSIP.

defopt INET, NETATALK.

Update for changes to config.

Silence collisions

Quiet down those "interrupt stuck?" messages.

branches: 1.21.6;
%x -> 0x%x, fixes for PR#3757

New ARP system, supports IPv4 over any hardware link.

Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will
only support Ethernet. Tcpdump itself should be ok, but libpcap needs
lot of work.

For the detailed change history, look at the commit log entries for
the is-newarp branch.

Use the macros sc_if, sc_addr to avoid lots of references to sc_arpcom.

Get rid of some printf noise.

Reorganize/simplify the way the memory layout is done.
Update to the latest sys/dev/isa/if_ie.c (new ieget).

branches: 1.16.6;
Make this compile with -Werror -Wall -Wstrict-prototypes
(finally! yea!) Also get rid of __BROKEN_INDIRECT_CONFIG

Get rid of some cruft in the match function.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

Fix typo, noticed by Curt Sampson <curt@portal.ca>.

Changed struct ifnet to have a pointer to the softc of the underlying
device and a printable "external name" (name + unit number), thus eliminating
if_name and if_unit. Updated interface to (*if_watchdog)() and (*if_start)()
to take a struct ifnet *, rather than a unit number.

Use the traditional names (*reg.h, *var.h)

Take advantage of the new config attach stuff by
splitting out the obio and vme support code.

New device attachment scheme:

- split softc size and match/attach out from cfdriver into
a new struct cfattach.

- new "attach" directive for files.*. May specify the name of
the cfattach structure, so that devices may be easily attached
to parents with different autoconfiguration semantics.

Kill a mis-matched and unnecessary declaration.

The IST_* and IPL_* constants are not bus-specific; don't treat them as such.
Change splimp -> splnet in Ethernet, ARCnet, and FDDI drivers.

Sync with the rest of the world.

Sync with net/if.h changes

Updated ie driver based on i386 version 1.30

Fixes to make "ie" work (from Chuck Silvers -- Thanks!)

New autoconfig interface to support VME, etc.

Use the traditional names (*reg.h, *var.h)

New autoconfig interface to support VME, etc.

Remove trailing whitespace.

branches: 1.25.120;
Split softc/device_t, with misc cosmetic changes.

branches: 1.24.2; 1.24.4;
Remove clause 3 and 4 from TNF licenses

branches: 1.23.40; 1.23.42; 1.23.44;
Add (char *) casts on pointer arith.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.21.26;
merge ktrace-lwp.

branches: 1.20.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.19.8;
__KERNEL_RCSID()

branches: 1.18.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.15.26; 1.15.30;
Update for bcopy/bzero -> memcpy/memset changes.

defopt INET, NETATALK.

Merge arch/sun3x into arch/sun3

branches: 1.12.2;
The ie_reset function needs to turn off loopback mode.
(Remember the TDR complaint: short X clocks away?
that was because the chip was in looback mode! 8)

Use sizeof(struct ieob) instead of a sun3-specific macro,
so this driver will work on the sun3x as well. (Works!)

branches: 1.10.4;
Rename obio_alloc/obio_mapin and check for obio in match functions
for attachments that will use obio_mapin.

New ARP system, supports IPv4 over any hardware link.

Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will
only support Ethernet. Tcpdump itself should be ok, but libpcap needs
lot of work.

For the detailed change history, look at the commit log entries for
the is-newarp branch.

branches: 1.8.4;
Fix copyrights (/s/REGENTS/FOUNDATION/)

Make this compile with -Werror -Wall -Wstrict-prototypes
(finally! yea!) Also get rid of __BROKEN_INDIRECT_CONFIG

Most files that were copyright Adam Glass and/or Gordon W. Ross
are now copyright The NetBSD Foundation (rights assigned).

Get rid of some cruft in the match function.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

Use the traditional names (*reg.h, *var.h)

Take advantage of the new config attach stuff by
splitting out the obio and vme support code.

Fix various typos in comments.

Remove trailing whitespace.

branches: 1.16.120;
Split softc/device_t, with misc cosmetic changes.

branches: 1.15.2; 1.15.4;
Remove clause 3 and 4 from TNF licenses

branches: 1.14.40; 1.14.42; 1.14.44;
Add (char *) casts on pointer arith.