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History log of /src/sys/arch/landisk/dev
RevisionDateAuthorComments
 1.8 20-Dec-2023  thorpej Remove unnecessary <sys/malloc.h>.
 1.7 15-Jul-2021  rin Migrate btn_init() from btnopen() (with RUN_ONCE) to btn_obio_attach().

Fix uninitialized use of btn_event_list_lock in btn_event_register().

Found by LOCKDEBUG.
 1.6 21-Jan-2012  nonaka branches: 1.6.64;
fix my license notice.
 1.5 27-Mar-2008  uwe branches: 1.5.38; 1.5.42;
Say "buttons" not "button" as there are several.
 1.4 27-Mar-2008  uwe Split device_t and softc.
 1.3 17-Oct-2007  garbled branches: 1.3.16;
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.
 1.2 09-Jul-2007  ad branches: 1.2.10;
Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements
 1.1 01-Sep-2006  uwe branches: 1.1.2; 1.1.6; 1.1.12; 1.1.18; 1.1.20; 1.1.26;
Initial import of NetBSD/landisk port by NONAKA Kimihiro <nonaka@NetBSD.org>
 1.1.26.1 03-Oct-2007  garbled Sync with HEAD
 1.1.20.1 11-Jul-2007  mjf Sync with head.
 1.1.18.1 15-Jul-2007  ad Sync with head.
 1.1.12.3 03-Sep-2007  yamt sync with head.
 1.1.12.2 30-Dec-2006  yamt sync with head.
 1.1.12.1 01-Sep-2006  yamt file btn_obio.c was added on branch yamt-lazymbuf on 2006-12-30 20:46:21 +0000
 1.1.6.2 09-Sep-2006  rpaulo sync with head
 1.1.6.1 01-Sep-2006  rpaulo file btn_obio.c was added on branch rpaulo-netinet-merge-pcb on 2006-09-09 02:40:48 +0000
 1.1.2.2 03-Sep-2006  yamt sync with head.
 1.1.2.1 01-Sep-2006  yamt file btn_obio.c was added on branch yamt-pdpolicy on 2006-09-03 15:23:07 +0000
 1.2.10.1 06-Nov-2007  matt sync with HEAD
 1.3.16.1 03-Apr-2008  mjf Sync with HEAD.
 1.5.42.1 18-Feb-2012  mrg merge to -current.
 1.5.38.1 17-Apr-2012  yamt sync with head
 1.6.64.1 01-Aug-2021  thorpej Sync with HEAD.
 1.15 29-Sep-2021  thorpej Confirm to the NOTE_SUBMIT protocol. With this, btn_read_filtops is MPSAFE.
 1.14 26-Sep-2021  thorpej Driver "kqfilter" entry points return an error code, so if an invalid
filter is requested, return EINVAL rather than 1.
 1.13 26-Sep-2021  thorpej Use seltrue_filtops rather than rolling our own with filt_seltrue.
 1.12 26-Sep-2021  thorpej Change the kqueue filterops::f_isfd field to filterops::f_flags, and
define a flag FILTEROP_ISFD that has the meaning of the prior f_isfd.
Field and flag name aligned with OpenBSD.

This does not constitute a functional or ABI change, as the field location
and size, and the value placed in that field, are the same as the previous
code, but we're bumping __NetBSD_Version__ so 3rd-party module source code
can adapt, as needed.

NetBSD 9.99.89
 1.11 15-Jul-2021  rin Migrate btn_init() from btnopen() (with RUN_ONCE) to btn_obio_attach().

Fix uninitialized use of btn_event_list_lock in btn_event_register().

Found by LOCKDEBUG.
 1.10 19-Dec-2020  thorpej branches: 1.10.4;
Use sel{record,remove}_knote().
 1.9 25-Oct-2017  maya branches: 1.9.16;
Use C99 initializer for filterops

Mostly done with spatch with touchups for indentation

@@
expression a;
identifier b,c,d;
identifier p;
@@
const struct filterops p =
- { a, b, c, d
+ {
+ .f_isfd = a,
+ .f_attach = b,
+ .f_detach = c,
+ .f_event = d,
};
 1.8 25-Jul-2014  dholland Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.
 1.7 16-Mar-2014  dholland branches: 1.7.2;
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.
 1.6 14-May-2011  rmind branches: 1.6.4; 1.6.14; 1.6.18;
Convert to mutex(9)/condvar(9). Use RUN_ONCE(9) to avoid racy init.
 1.5 01-Mar-2008  rmind branches: 1.5.26; 1.5.32;
Welcome to 4.99.55:

- Add a lot of missing selinit() and seldestroy() calls.

- Merge selwakeup() and selnotify() calls into a single selnotify().

- Add an additional 'events' argument to selnotify() call. It will
indicate which event (POLL_IN, POLL_OUT, etc) happen. If unknown,
zero may be used.

Note: please pass appropriate value of 'events' where possible.
Proposed on: <tech-kern>
 1.4 07-Jan-2008  ad branches: 1.4.2; 1.4.6;
Remove vestiges of simplelock debugging.
 1.3 05-Jan-2008  ad Fix includes
 1.2 04-Mar-2007  christos branches: 1.2.20; 1.2.26; 1.2.32;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.
 1.1 01-Sep-2006  uwe branches: 1.1.2; 1.1.6; 1.1.12; 1.1.14;
Initial import of NetBSD/landisk port by NONAKA Kimihiro <nonaka@NetBSD.org>
 1.1.14.1 12-Mar-2007  rmind Sync with HEAD.
 1.1.12.5 17-Mar-2008  yamt sync with head.
 1.1.12.4 21-Jan-2008  yamt sync with head
 1.1.12.3 03-Sep-2007  yamt sync with head.
 1.1.12.2 30-Dec-2006  yamt sync with head.
 1.1.12.1 01-Sep-2006  yamt file button.c was added on branch yamt-lazymbuf on 2006-12-30 20:46:21 +0000
 1.1.6.2 09-Sep-2006  rpaulo sync with head
 1.1.6.1 01-Sep-2006  rpaulo file button.c was added on branch rpaulo-netinet-merge-pcb on 2006-09-09 02:40:48 +0000
 1.1.2.2 03-Sep-2006  yamt sync with head.
 1.1.2.1 01-Sep-2006  yamt file button.c was added on branch yamt-pdpolicy on 2006-09-03 15:23:07 +0000
 1.2.32.1 08-Jan-2008  bouyer Sync with HEAD
 1.2.26.1 18-Feb-2008  mjf Sync with HEAD.
 1.2.20.2 23-Mar-2008  matt sync with HEAD
 1.2.20.1 09-Jan-2008  matt sync with HEAD
 1.4.6.1 03-Apr-2008  mjf Sync with HEAD.
 1.4.2.1 24-Mar-2008  keiichi sync with head.
 1.5.32.1 06-Jun-2011  jruoho Sync with HEAD.
 1.5.26.1 31-May-2011  rmind sync with head
 1.6.18.1 18-May-2014  rmind sync with head
 1.6.14.2 03-Dec-2017  jdolecek update from HEAD
 1.6.14.1 20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.6.4.1 22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.7.2.1 10-Aug-2014  tls Rebase.
 1.9.16.1 03-Jan-2021  thorpej Sync w/ HEAD.
 1.10.4.1 01-Aug-2021  thorpej Sync with HEAD.
 1.2 15-Jul-2021  rin Migrate btn_init() from btnopen() (with RUN_ONCE) to btn_obio_attach().

Fix uninitialized use of btn_event_list_lock in btn_event_register().

Found by LOCKDEBUG.
 1.1 01-Sep-2006  uwe branches: 1.1.2; 1.1.6; 1.1.12; 1.1.170;
Initial import of NetBSD/landisk port by NONAKA Kimihiro <nonaka@NetBSD.org>
 1.1.170.1 01-Aug-2021  thorpej Sync with HEAD.
 1.1.12.2 30-Dec-2006  yamt sync with head.
 1.1.12.1 01-Sep-2006  yamt file buttonvar.h was added on branch yamt-lazymbuf on 2006-12-30 20:46:21 +0000
 1.1.6.2 09-Sep-2006  rpaulo sync with head
 1.1.6.1 01-Sep-2006  rpaulo file buttonvar.h was added on branch rpaulo-netinet-merge-pcb on 2006-09-09 02:40:48 +0000
 1.1.2.2 03-Sep-2006  yamt sync with head.
 1.1.2.1 01-Sep-2006  yamt file buttonvar.h was added on branch yamt-pdpolicy on 2006-09-03 15:23:07 +0000
 1.11 07-Aug-2021  thorpej Merge thorpej-cfargs2.
 1.10 24-Apr-2021  thorpej branches: 1.10.8;
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?).
 1.9 01-Jul-2011  dyoung branches: 1.9.68;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.8 07-Nov-2009  cegger Add a flags argument to pmap_kenter_pa(9).
Patch showed on tech-kern@ http://mail-index.netbsd.org/tech-kern/2009/11/04/msg006434.html
No objections.
 1.7 02-Aug-2009  nonaka fix build failure.
 1.6 28-Apr-2008  martin branches: 1.6.10; 1.6.18;
Remove clause 3 and 4 from TNF licenses
 1.5 27-Mar-2008  uwe branches: 1.5.2; 1.5.4;
Split device_t and softc. While here, hide obio_softc - there's no
reason to expose it via obiovar.h
 1.4 06-Nov-2007  uwe branches: 1.4.14;
Use device_t and device_private(). Use aprint_* in attach.
 1.3 17-Oct-2007  garbled branches: 1.3.2;
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.
 1.2 24-Sep-2007  uwe branches: 1.2.2;
Pass correct size in CFATTACH_DECL (obio_softc, not device).

I have no idea how/why it's been working all this time, but I guess
today's changes to struct device shifted delicate numerology balance
and exposed the problem that's been around since the import.
 1.1 01-Sep-2006  uwe branches: 1.1.2; 1.1.6; 1.1.10; 1.1.12; 1.1.18; 1.1.26; 1.1.28; 1.1.36; 1.1.38; 1.1.40;
Initial import of NetBSD/landisk port by NONAKA Kimihiro <nonaka@NetBSD.org>
 1.1.40.1 07-Oct-2007  yamt sync with head.
 1.1.38.1 06-Nov-2007  matt sync with HEAD
 1.1.36.2 06-Nov-2007  joerg Sync with HEAD.
 1.1.36.1 02-Oct-2007  joerg Sync with HEAD.
 1.1.28.1 30-Sep-2007  wrstuden Catch up on netbsd-4 as of a few days ago.
 1.1.26.1 03-Oct-2007  garbled Sync with HEAD
 1.1.18.2 03-Dec-2007  ad Sync with HEAD.
 1.1.18.1 09-Oct-2007  ad Sync with head.
 1.1.12.4 15-Nov-2007  yamt sync with head.
 1.1.12.3 27-Oct-2007  yamt sync with head.
 1.1.12.2 30-Dec-2006  yamt sync with head.
 1.1.12.1 01-Sep-2006  yamt file obio.c was added on branch yamt-lazymbuf on 2006-12-30 20:46:21 +0000
 1.1.10.1 25-Sep-2007  xtraeme Pull up following revision(s) (requested by uwe in ticket #902):
sys/arch/landisk/dev/obio.c: revision 1.2

Pass correct size in CFATTACH_DECL (obio_softc, not device).

I have no idea how/why it's been working all this time, but I guess
today's changes to struct device shifted delicate numerology balance
and exposed the problem that's been around since the import.
 1.1.6.2 09-Sep-2006  rpaulo sync with head
 1.1.6.1 01-Sep-2006  rpaulo file obio.c was added on branch rpaulo-netinet-merge-pcb on 2006-09-09 02:40:48 +0000
 1.1.2.2 03-Sep-2006  yamt sync with head.
 1.1.2.1 01-Sep-2006  yamt file obio.c was added on branch yamt-pdpolicy on 2006-09-03 15:23:07 +0000
 1.2.2.1 13-Nov-2007  bouyer Sync with HEAD
 1.3.2.1 19-Nov-2007  mjf Sync with HEAD.
 1.4.14.2 02-Jun-2008  mjf Sync with HEAD.
 1.4.14.1 03-Apr-2008  mjf Sync with HEAD.
 1.5.4.3 11-Mar-2010  yamt sync with head
 1.5.4.2 19-Aug-2009  yamt sync with head.
 1.5.4.1 16-May-2008  yamt sync with head.
 1.5.2.1 18-May-2008  yamt sync with head.
 1.6.18.1 21-Apr-2010  matt sync to netbsd-5
 1.6.10.1 04-Oct-2009  snj Pull up following revision(s) (requested by mrg in ticket #1063):
sys/arch/landisk/dev/obio.c: revision 1.7
sys/arch/landisk/include/bus.h: revision 1.5
sys/arch/landisk/landisk/shpcic_machdep.c: revision 1.2
sys/arch/sh3/dev/shpcic.c: revision 1.13
sys/arch/sh3/dev/shpcicvar.h: revision 1.7
fix build failure.
 1.9.68.6 05-Apr-2021  thorpej Treat config_probe() as if it were a boolean function; don't compare
return value > 0... except for the odd balls, which are now really easy
to spot.
 1.9.68.5 05-Apr-2021  thorpej config_match() -> config_probe() for the straight-forward indirect config
cases. There are still a few odd balls using config_match() which should
be sorted out later.
 1.9.68.4 04-Apr-2021  thorpej CFARG_SUBMATCH -> CFARG_SEARCH for the indirect configuration uses.
 1.9.68.3 03-Apr-2021  thorpej Give config_attach() the tagged variadic argument treatment and
mechanically convert all call sites.
 1.9.68.2 21-Mar-2021  thorpej CFARG_IATTR usage audit:

If a device carries only one interface attribute, there is no need
to specify it when calling config_search(); that specification is
meant only to disambiguate which interface attribute (which is a
proxy for "what kind of attach args are being used") is having
children attached. cfparent_match() will take care of ensuring that
any potential children can attach to one of the parent's iterface
attributes, and if the parent only carries one, no disambiguation is
necessary.
 1.9.68.1 20-Mar-2021  thorpej The proliferation if config_search_*() and config_found_*() combinations
is a little absurd, so begin to tidy this up:

- Introduce a new cfarg_t enumerated type, that defines the types of
tag-value variadic arguments that can be passed to the various
config_*() functions (CFARG_SUBMATCH, CFARG_IATTR, and CFARG_LOCATORS,
for now, plus a CFARG_EOL sentinel).
- Collapse config_search_*() into config_search() that takes these
variadic arguments.
- Convert all call sites of config_search_*() to the new signature.
Noticed several incorrect usages along the way, which will be
audited in a future commit.
 1.10.8.1 04-Aug-2021  thorpej Adapt to CFARGS().
 1.4 01-Jul-2011  dyoung #include <sys/bus.h> instead of <machine/bus.h>.
 1.3 28-Apr-2008  martin Remove clause 3 and 4 from TNF licenses
 1.2 27-Mar-2008  uwe branches: 1.2.2; 1.2.4;
Split device_t and softc. While here, hide obio_softc - there's no
reason to expose it via obiovar.h
 1.1 01-Sep-2006  uwe branches: 1.1.2; 1.1.6; 1.1.12; 1.1.62;
Initial import of NetBSD/landisk port by NONAKA Kimihiro <nonaka@NetBSD.org>
 1.1.62.2 02-Jun-2008  mjf Sync with HEAD.
 1.1.62.1 03-Apr-2008  mjf Sync with HEAD.
 1.1.12.2 30-Dec-2006  yamt sync with head.
 1.1.12.1 01-Sep-2006  yamt file obiovar.h was added on branch yamt-lazymbuf on 2006-12-30 20:46:21 +0000
 1.1.6.2 09-Sep-2006  rpaulo sync with head
 1.1.6.1 01-Sep-2006  rpaulo file obiovar.h was added on branch rpaulo-netinet-merge-pcb on 2006-09-09 02:40:48 +0000
 1.1.2.2 03-Sep-2006  yamt sync with head.
 1.1.2.1 01-Sep-2006  yamt file obiovar.h was added on branch yamt-pdpolicy on 2006-09-03 15:23:07 +0000
 1.2.4.1 16-May-2008  yamt sync with head.
 1.2.2.1 18-May-2008  yamt sync with head.
 1.4 20-Dec-2023  thorpej Remove unnecessary <sys/malloc.h>.
 1.3 21-Jan-2012  nonaka fix my license notice.
 1.2 27-Mar-2008  uwe branches: 1.2.38; 1.2.42;
Split device_t and softc.
 1.1 01-Sep-2006  uwe branches: 1.1.2; 1.1.6; 1.1.12; 1.1.62;
Initial import of NetBSD/landisk port by NONAKA Kimihiro <nonaka@NetBSD.org>
 1.1.62.1 03-Apr-2008  mjf Sync with HEAD.
 1.1.12.2 30-Dec-2006  yamt sync with head.
 1.1.12.1 01-Sep-2006  yamt file pwrsw_obio.c was added on branch yamt-lazymbuf on 2006-12-30 20:46:21 +0000
 1.1.6.2 09-Sep-2006  rpaulo sync with head
 1.1.6.1 01-Sep-2006  rpaulo file pwrsw_obio.c was added on branch rpaulo-netinet-merge-pcb on 2006-09-09 02:40:48 +0000
 1.1.2.2 03-Sep-2006  yamt sync with head.
 1.1.2.1 01-Sep-2006  yamt file pwrsw_obio.c was added on branch yamt-pdpolicy on 2006-09-03 15:23:07 +0000
 1.2.42.1 18-Feb-2012  mrg merge to -current.
 1.2.38.1 17-Apr-2012  yamt sync with head
 1.6 21-Sep-2023  msaitoh Fix typo in comment.
 1.5 06-Apr-2010  nonaka Added support RICOH 5C316.
 1.4 04-May-2008  martin branches: 1.4.20; 1.4.22;
Move TNF licenses to 2 clause form
 1.3 27-Mar-2008  uwe branches: 1.3.2; 1.3.4;
Split device_t and softc.
 1.2 06-Nov-2007  uwe branches: 1.2.14;
Use device_t and device_private().
While here - make ops static.
 1.1 07-Sep-2006  uwe branches: 1.1.4; 1.1.6; 1.1.12; 1.1.18; 1.1.36; 1.1.38; 1.1.42; 1.1.44;
Use MI rs5c313 driver attached as: rs5c313rtc0 at shb0
Mark landisk port as __HAVE_GENERIC_TODR.
 1.1.44.1 19-Nov-2007  mjf Sync with HEAD.
 1.1.42.1 13-Nov-2007  bouyer Sync with HEAD
 1.1.38.1 06-Nov-2007  matt sync with HEAD
 1.1.36.1 06-Nov-2007  joerg Sync with HEAD.
 1.1.18.1 03-Dec-2007  ad Sync with HEAD.
 1.1.12.3 15-Nov-2007  yamt sync with head.
 1.1.12.2 30-Dec-2006  yamt sync with head.
 1.1.12.1 07-Sep-2006  yamt file rs5c313_landisk.c was added on branch yamt-lazymbuf on 2006-12-30 20:46:21 +0000
 1.1.6.2 14-Sep-2006  yamt sync with head.
 1.1.6.1 07-Sep-2006  yamt file rs5c313_landisk.c was added on branch yamt-pdpolicy on 2006-09-14 12:31:11 +0000
 1.1.4.2 09-Sep-2006  rpaulo sync with head
 1.1.4.1 07-Sep-2006  rpaulo file rs5c313_landisk.c was added on branch rpaulo-netinet-merge-pcb on 2006-09-09 02:40:48 +0000
 1.2.14.2 02-Jun-2008  mjf Sync with HEAD.
 1.2.14.1 03-Apr-2008  mjf Sync with HEAD.
 1.3.4.2 11-Aug-2010  yamt sync with head.
 1.3.4.1 16-May-2008  yamt sync with head.
 1.3.2.1 18-May-2008  yamt sync with head.
 1.4.22.1 30-May-2010  rmind sync with head
 1.4.20.1 30-Apr-2010  uebayasi Sync with HEAD.
 1.2 07-Sep-2006  uwe Use MI rs5c313 driver attached as: rs5c313rtc0 at shb0
Mark landisk port as __HAVE_GENERIC_TODR.
 1.1 01-Sep-2006  uwe branches: 1.1.2;
Initial import of NetBSD/landisk port by NONAKA Kimihiro <nonaka@NetBSD.org>
 1.1.2.3 14-Sep-2006  yamt sync with head.
 1.1.2.2 03-Sep-2006  yamt sync with head.
 1.1.2.1 01-Sep-2006  yamt file rs5c313reg.h was added on branch yamt-pdpolicy on 2006-09-03 15:23:07 +0000
 1.11 20-Dec-2023  thorpej Remove unnecessary <sys/malloc.h>.
 1.10 20-Oct-2017  jdolecek move ata_queue_alloc(1) and ata_queue_free() calls to ata_channel_init()
and ata_channel_destroy() respectively, to make attachment code simpler,
and to make it easier to spot special queue manipulation like cmdide(4)

on topic of PR kern/52606
 1.9 07-Oct-2017  jdolecek Merge support for SATA NCQ (Native Command Queueing) from jdolecek-ncq branch

ATA subsystem was changed to support several outstanding commands, and use
NCQ xfers if supported by both the controller and the disk, including NCQ
error recovery. Set NCQ high priority for BPRIO_TIMECRITICAL xfers
if supported. Added FUA support.

Done some work towards MP-safe, all ATA code tsleep()/wakeup() replaced
by condvars, and switched most code from spl* to mutexes (separate
wd(4) and ata channel lock).

Introduced new option WD_CHAOS_MONKEY to facilitate testing of error
handling, fixed several uncovered issues. Also fixed several problems
with kernel dump to wd(4) disk.

Tested with ahcisata(4), mvsata(4), siisata(4), piixide(4) on amd64,
with and without port multiplier, both disk and ATAPI devices; other
drivers and archs mechanically adjusted and compile-tested. NCQ is
supported for ahcisata(4) and siisata(4) for any controller, for
mvsata(4) only Gen IIe ones for now. Also enabled ATAPI support in
mvsata(4).

Thanks to Matt Thomas for initial ATA infrastructure patch, and
Jonathan A.Kollasch for siisata(4) NCQ changes and general testing.

Also fixes PR kern/43169 (wd(4)); and PR kern/11811, PR kern/47041,
PR kern/51979 (kernel dump)
 1.8 31-Jul-2012  bouyer branches: 1.8.2; 1.8.28;
Apply back changes that were reverted on Jul 24 and Jul 26 (general ata/wdc
cleanup and SATA PMP support), now that I'm back to fix the fallouts.
 1.7 26-Jul-2012  jakllsch Revert, with intention of restoring in a less invasive way, the SATA Port
Multiplier code.

ok christos@
 1.6 02-Jul-2012  bouyer Add sata Port MultiPlier (PMP) support to the ata bus layer,
as described in
http://mail-index.netbsd.org/tech-kern/2012/06/23/msg013442.html
PMP support in integrated to the atabus layer.
struct ata_channel's ch_drive[] is not dynamically allocated, and ch_ndrive
(renamed to ch_ndrives) closely reflects the size of the ch_drive[] array.
Add helper functions atabus_alloc_drives() and atabus_free_drives()
to manage ch_drive[]/ch_ndrives.
Add wdc_maxdrives to struct wdc_softc so that bus front-end can specify
how much drive they really support (master/slave or single).
ata_reset_drive() callback gains a uint32_t *sigp argument which,
when not NULL, will contain the signature of the device being reset.
While there, some cosmetic changes:
- added a drive_type enum to ata_drive_datas, and stop encoding the
probed drive type in drive_flags (we were out of drive flags anyway).
- rename DRIVE_ATAPIST to DRIVE_ATAPIDSCW to better reflect what this
really is
- remove ata_channel->ata_drives, it's redundant with the pointer in
ata_drive_datas
- factor out the interpretation of SATA signatures in sata_interpet_sig()

propagate these changes to the ATA HBA drivers, and add support for PMP
to ahcisata(4) and siisata(4).

Thanks to:
- Protocase (http://www.protocase.com/) which provided a system
with lots of controllers, SATA PMP and drive slots
- Conservation Genomics Laboratory, Department of Biology, New Mexico State
University for hosting the above system
- Brook Milligan, who set up remote access and has been very responsive
when SATA cable move was needed
 1.5 01-Jul-2011  dyoung branches: 1.5.2;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.4 28-Apr-2008  martin Remove clause 3 and 4 from TNF licenses
 1.3 27-Mar-2008  uwe branches: 1.3.2; 1.3.4;
Add missing aprint_naive("\n");
 1.2 18-Mar-2008  cube Split device_t and softc for ATA devices, as well as wd(4). Other
cosmetic changes where appropriate.
 1.1 01-Sep-2006  uwe branches: 1.1.2; 1.1.6; 1.1.12; 1.1.38; 1.1.58; 1.1.62;
Initial import of NetBSD/landisk port by NONAKA Kimihiro <nonaka@NetBSD.org>
 1.1.62.2 02-Jun-2008  mjf Sync with HEAD.
 1.1.62.1 03-Apr-2008  mjf Sync with HEAD.
 1.1.58.1 24-Mar-2008  keiichi sync with head.
 1.1.38.1 23-Mar-2008  matt sync with HEAD
 1.1.12.3 24-Mar-2008  yamt sync with head.
 1.1.12.2 30-Dec-2006  yamt sync with head.
 1.1.12.1 01-Sep-2006  yamt file wdc_obio.c was added on branch yamt-lazymbuf on 2006-12-30 20:46:21 +0000
 1.1.6.2 09-Sep-2006  rpaulo sync with head
 1.1.6.1 01-Sep-2006  rpaulo file wdc_obio.c was added on branch rpaulo-netinet-merge-pcb on 2006-09-09 02:40:48 +0000
 1.1.2.2 03-Sep-2006  yamt sync with head.
 1.1.2.1 01-Sep-2006  yamt file wdc_obio.c was added on branch yamt-pdpolicy on 2006-09-03 15:23:07 +0000
 1.3.4.1 16-May-2008  yamt sync with head.
 1.3.2.1 18-May-2008  yamt sync with head.
 1.5.2.1 30-Oct-2012  yamt sync with head
 1.8.28.2 27-Sep-2017  jdolecek change wdc_init_shadow_regs() to accept only struct wdc_regs, it doesn't
touch anything else

factor out the probe-only struct ata_channel initialization to wdcprobe(), to
reduce duplication of logic in individual drivers, and to actually work now
that more init is needed beyond the memset()
 1.8.28.1 26-Sep-2017  jdolecek switch to ata_queue_alloc() so that this at least compiles
 1.8.2.1 03-Dec-2017  jdolecek update from HEAD

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