malloc(9) -> kmem(9)

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 the MODULE_*_HOOK() macros to MODULE_HOOK_*() as briefly
discussed on irc.

NFCI intended.

Ride the earlier kernel bump - it;s getting crowded.

Merge the [pgoyette-compat] branch

branches: 1.13.16; 1.13.18;
include "ioconf.h" to get the 'void <driver>attach(int count);' prototype.

Dedup the conversion of bioc_disk and bioc_vol to envsys_data_t

branches: 1.11.4;
Add d_discard to all struct cdevsw instances I could find.

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

branches: 1.10.2;
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: 1.9.12; 1.9.22; 1.9.26;
struct device * -> device_t, no functional changes intended.

branches: 1.8.4; 1.8.18;
use aprint_*_dev and device_xname

Set D_OTHER | D_MPSAFE to d_flag for the cdevsw methods.

branches: 1.6.2; 1.6.6;
- remove casts
- sprinkle static
- move decls inside ifdef

Improve the bio(4) API for incoming changes to arcmsr(4) (and perhaps
other drivers in the future):

- Added BIOC_SVCHECKING to the BIOCVOL ioctl, to know if a volume is
running a consistency check.
- Added three more volume levels for the BIOCVOL ioctl.
- Added BIOC_SDPASSTHRU to the BIOCDISK ioctl, to know if a disk is
in pass-through mode.
- Added BIOCDISK_NOVOL; it's used with the same reason than BIOCDISK,
but it's used only to get information about the physical disks connected
in a controller (regardless if they are in a volume set or not).
- Added BIOC_SSDELHOTSPARE, BIOC_SSPASTHRU, BIOC_SSDELPASSTHRU,
BIOC_SSCHECKSTART_VOL and BIOC_SSCHECKSTOPVOL; to remove a hot-spare,
add and remove a pass-through disk and to start/stop a consistency
check in a volume.
- Added the BIOC_VOLOPS ioctl; to create/remove a volume set.
- Removed the BIOCCREATERAID ioctl, it was too limited for my needs.
- Added compatibility ioctls for BIOCDISK and BIOCVOL, enabled via COMPAT_30.

branches: 1.4.4;
Match the docs: MUTEX_DRIVER/SPIN are now only for porting code written
for Solaris.

branches: 1.3.2;
Make sure the mutex is initialized before using it, use the patch
provided by Martin Husemann on:
http://mail-index.netbsd.org/tech-kern/2007/11/16/0006.html

This fixes the uninitialized lock when calling bio_register() on mfi(4)
and other drivers, caught by LOCKDEBUG.

Ok'ed by Andrew Doran <ad@netbsd.org>

branches: 1.2.2;
KNF, MALLOC -> malloc, u_intXX_t -> uintXX_t.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.14; 1.1.16; 1.1.18; 1.1.22; 1.1.24;
Add bio(4) and associated bioctl(8) from OpenBSD, a driver control block
device controllers, and more specifically raid controllers.
Add a new sensor type, ENVSYS_DRIVE, to report drive status. From OpenBSD.
Add bio and sysmon support to mfi(4). This allow userland to query
status for drives and logical volumes attached to a mfi(4) controller. While
there fix some debug printfs in mfi so they compile.
Add bio(4) to amd64 and i386 GENERIC.

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 the MODULE_*_HOOK() macros to MODULE_HOOK_*() as briefly
discussed on irc.

NFCI intended.

Ride the earlier kernel bump - it;s getting crowded.

Merge the [pgoyette-compat] branch

branches: 1.13.16; 1.13.18;
include "ioconf.h" to get the 'void <driver>attach(int count);' prototype.

Dedup the conversion of bioc_disk and bioc_vol to envsys_data_t

branches: 1.11.4;
Add d_discard to all struct cdevsw instances I could find.

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

branches: 1.10.2;
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: 1.9.12; 1.9.22; 1.9.26;
struct device * -> device_t, no functional changes intended.

branches: 1.8.4; 1.8.18;
use aprint_*_dev and device_xname

Set D_OTHER | D_MPSAFE to d_flag for the cdevsw methods.

branches: 1.6.2; 1.6.6;
- remove casts
- sprinkle static
- move decls inside ifdef

Improve the bio(4) API for incoming changes to arcmsr(4) (and perhaps
other drivers in the future):

- Added BIOC_SVCHECKING to the BIOCVOL ioctl, to know if a volume is
running a consistency check.
- Added three more volume levels for the BIOCVOL ioctl.
- Added BIOC_SDPASSTHRU to the BIOCDISK ioctl, to know if a disk is
in pass-through mode.
- Added BIOCDISK_NOVOL; it's used with the same reason than BIOCDISK,
but it's used only to get information about the physical disks connected
in a controller (regardless if they are in a volume set or not).
- Added BIOC_SSDELHOTSPARE, BIOC_SSPASTHRU, BIOC_SSDELPASSTHRU,
BIOC_SSCHECKSTART_VOL and BIOC_SSCHECKSTOPVOL; to remove a hot-spare,
add and remove a pass-through disk and to start/stop a consistency
check in a volume.
- Added the BIOC_VOLOPS ioctl; to create/remove a volume set.
- Removed the BIOCCREATERAID ioctl, it was too limited for my needs.
- Added compatibility ioctls for BIOCDISK and BIOCVOL, enabled via COMPAT_30.

branches: 1.4.4;
Match the docs: MUTEX_DRIVER/SPIN are now only for porting code written
for Solaris.

branches: 1.3.2;
Make sure the mutex is initialized before using it, use the patch
provided by Martin Husemann on:
http://mail-index.netbsd.org/tech-kern/2007/11/16/0006.html

This fixes the uninitialized lock when calling bio_register() on mfi(4)
and other drivers, caught by LOCKDEBUG.

Ok'ed by Andrew Doran <ad@netbsd.org>

branches: 1.2.2;
KNF, MALLOC -> malloc, u_intXX_t -> uintXX_t.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.14; 1.1.16; 1.1.18; 1.1.22; 1.1.24;
Add bio(4) and associated bioctl(8) from OpenBSD, a driver control block
device controllers, and more specifically raid controllers.
Add a new sensor type, ENVSYS_DRIVE, to report drive status. From OpenBSD.
Add bio and sysmon support to mfi(4). This allow userland to query
status for drives and logical volumes attached to a mfi(4) controller. While
there fix some debug printfs in mfi so they compile.
Add bio(4) to amd64 and i386 GENERIC.