CVS log for src/sys/arch/arc/jazz/fd.c

Up to [cvs.NetBSD.org] / src / sys / arch / arc / jazz

Request diff between arbitrary revisions

Keyword substitution: kv
Default branch: MAIN

arc/fdc(4): fix printf specifiers for FD_DEBUG build.

Merge thorpej-cfargs2.

Adapt to CFARGS().

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?).

Give config_found() the same variadic arguments treatment as
config_search().  This commit only adds the CFARG_EOL sentinel
to the existing config_found() calls.  Conversion of config_found_sm_loc()
and config_found_ia() call sites will be in subsequent commits.

Sync with HEAD

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.

Sync with HEAD

Resolve a couple of conflicts (result of the uimin/uimax changes)

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!)

update from HEAD

Restore all work from the former pgoyette-localcount branch (which is
now abandoned doe to cvs merge botch).

The branch now builds, and installs via anita.  There are still some
problems (cgd is non-functional and all atf tests time-out) but they
will get resolved soon.

Redo previous.  Rather than separately extracting the device_t, we can
rely on sc->sc_dev when we need to call device_release().

Instead of repeatedly typing the conditional initialization of the
.d_localcount members in the various {b,c}devsw, define an initializer
macro and use it.  This also removes the need for defining new symbols
for each 'struct localcount'.

As suggested by riastradh@

Sync with HEAD

Use C99-style initializers for struct dkdriver.

Sync with HEAD

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.

Rebase to HEAD as of a few days ago.

Rebase.

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.

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")

sync with head

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.

- remove unused variables
- use (void) when we don't care about the return value
- move variables inside their usage #if

#include <sys/bus.h> instead of <machine/bus.h>.

sync with head

Replace shutdownhook_establish(9) with pmf_device_register1(9).
Tested on JC94.

sync with head.

Sync with HEAD.

Sync with HEAD.

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

replace bitmask_snprintf(9) with snprintb(3)

Sync with HEAD.

Sync with wrstuden-revivesa-base-2.

Sync with head.

Split device_t/softc with misc related changes.

Sync with HEAD.

Sync w/ -current. 34 merge conflicts to follow.

sync with head.

Use device_lookup_private() to get softc.

Sync with HEAD.

sync with head.

sync with head.

Remove clause 3 and 4 from TNF licenses

sync with HEAD

sync with head.

Sync with HEAD.

Follow the merge of pmap.c on i386 and amd64 and move
pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup
code to restore CR4 before jumping back into kernel space as the large
page option might cover that.

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.

Sync with HEAD

sync with head.

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

Sync with HEAD

sync with head.

- Alter disk attach/detach to fix a panic when closing a vnd device.
- Sync with HEAD.

- Back out the biodone() changes.
- Eliminate B_ERROR (from HEAD).

Sync with HEAD.

Sync with HEAD.

Change one overlooked label reference from "bad" to "done".

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.

Sync with head.

Sync with head.

Merge some of the less invasive changes from the vmlocking branch:

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

Sync with HEAD.

More fixes after the caddr_t removal.
Mostly cast to char* for pointer arithmetic,
but also one missing indirection, and one "void *v, x;" fix.

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

sync with head

sync with head.

Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.

sync with head.

Sync with head.

sync with head - hopefully this will work

Include "ioconf.h" rather than declare struct cfdriver foo_cd in each file.

Make i/o statistics collection more generic, include tape drives and
nfs mounts in the set of devices that statistics will be reported on.

sync with head.

Use device_parent().

Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

Sync with HEAD. Here we go again...

- 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)

- constify
- remove arg names from prototypes

sync with -current

Sync with HEAD.

Use TAILQ_* macro.

- remove __P()
- use ANSI function decls
- u_intNN_t -> uintNN_t
- some KNF

Adapt to branch

Sync with HEAD.

move buffer queue related stuffs from buf.h to their own header, bufq.h.

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD

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

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

__KERNEL_RCSID()

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

Remove register declarations.

Fix further printf format warnings for FD_DEBUG, in the wake of daddr_t
having changed.

Use PRId64 from <machine/int_fmtio.h> in printf format for daddr_t.
(Eventually jazzio would be moved into MI place :-)

TAB/space cleanup.

Sync with HEAD.

Use aprint_normal for cfprint routines.

Catch up to -current

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

Catch up to -current.

sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work

Use CFATTACH_DECL().

Declare all cfattach structures const.

Catch up to -current.

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.

sync kqueue branch with HEAD

catch up with -current.

Catch up to -current.

Convert to new device buffer queue interface.

Approved by: Noriyuki Soda <soda@netbsd.org>

Add device switch.

Convert all remaining devices.

file fd.c was added on branch nathanw_sa on 2002-08-01 02:41:10 +0000

Correct various misspellings of 'transfer' and inflected forms.

Catch up to -current.

bus_space'fied fd driver by TSUTSUI Izumi,
works with PICA-61 and Microsoft-Jazz,
but still doesn't work with his NEC-JC94 (NEC Express 5800/230)
due to data overrun.

Sync with HEAD

file fd.c was added on branch thorpej_scsipi on 2001-01-05 17:33:57 +0000

Switch pica to jazzio.
Split shared MD portion between algor and jazzio.