Commit Graph

25906 Commits

Author SHA1 Message Date
jhb
3f4e4d353c Add in assertions to ensure that we always call msleep or mawait with
either a timeout or a held mutex to detect unprotected infinite sleeps
that can easily lead to deadlock.

Submitted by:	alfred
2001-05-23 19:38:26 +00:00
phk
31d58379e4 Vlan tags are 12 bits, mask off anything above since the chip doesn't
seem to do so for us.

PR:		27567
Submitted by:	Koji HINO hino@ccm.cl.nec.co.jp
MFC after:	1 week
2001-05-23 19:25:14 +00:00
phk
b39746576c syslogd gets kernel log messages only once every 30 seconds or
at the top of the minute, whichever comes first.  It seems
logtimeout() is only called once after the kernel log is opened
and then never again after that.  So I guess syslogd only gets
kernel log messages by virtue of syncer(4)'s flushes ...?

PR:		27361
Submitted by:	pkern@utcc.utoronto.ca
MFC after:	1 week
2001-05-23 19:02:50 +00:00
phk
3d8cb62dd2 Use '+' not '|' to add PCATCH to tsleep. 2001-05-23 17:54:58 +00:00
phk
3a072a6a90 Use the correct enums in struct sysinit. 2001-05-23 17:53:24 +00:00
phk
843f91864f Remove the empty uscannerioctl() and use noioctl() instead. 2001-05-23 17:51:43 +00:00
phk
c8d4d78546 Change the way deletes are managed in DEVFS.
This fixes a number of warnings relating to removed cloned devices.

It also makes it possible to recreate deleted devices with
mknod(2).  The major/minor arguments are ignored.
2001-05-23 17:48:20 +00:00
gallatin
8ae035b51b catch up to i386:
- remove Giant for vm related traps
- don't hold Giant for MP safe syscalls

Reviewed-by: jhb
2001-05-23 16:34:07 +00:00
alfred
edd79c680a ufs_bmaparray() may block on IO, drop vm mutex and aquire Giant when
calling it from the pager routine
2001-05-23 10:30:25 +00:00
alfred
587340efa6 aquire Giant when playing with the buffercache and doing IO.
use msleep against the vm mutex while waiting for a page IO to complete.
2001-05-23 10:28:11 +00:00
alfred
ba66967415 aquire vm_mutex a little bit earlier to protect a pmap call. 2001-05-23 10:26:36 +00:00
ru
08c28f0caa The following modules were renamed:
fdesc -> fdescfs
portal -> portalfs
umap -> umapfs
union -> unionfs
2001-05-23 10:06:48 +00:00
ru
77a4013189 Name this module `umapfs'. 2001-05-23 10:02:22 +00:00
ru
35437d86aa - FDESC, FIFO, NULL, PORTAL, PROC, UMAP and UNION file
systems were repo-copied from sys/miscfs to sys/fs.

- Renamed the following file systems and their modules:
  fdesc -> fdescfs, portal -> portalfs, union -> unionfs.

- Renamed corresponding kernel options:
  FDESC -> FDESCFS, PORTAL -> PORTALFS, UNION -> UNIONFS.

- Install header files for the above file systems.

- Removed bogus -I${.CURDIR}/../../sys CFLAGS from userland
  Makefiles.
2001-05-23 09:42:29 +00:00
grog
627a25efaa Move objflags from vinumvar.h to vinumobj.h in preparation for
requiring fewer header files for userland programs.

Remove the gross debug device/non-debug device hack used to recognize
whether the kernel module was in sync with the userland module.
2001-05-23 05:27:40 +00:00
grog
ff282a70a1 Move objflags from vinumvar.h to vinumobj.h in preparation for
requiring fewer header files for userland programs.
2001-05-23 05:27:15 +00:00
grog
6b50f8bebc Move external declaration to vinumhdr.h. 2001-05-23 05:26:40 +00:00
grog
1c15b201e0 Set flag VF_HASDEBUG in vinum_conf to indicate that the module was
compiled with debug support.  This can be used by userland programs to
recognize which ioctls the module supports.

As a result, remove the gross debug device/non-debug device hack used
to recognize whether the kernel module was in sync with the userland
module.

Replace explicit references to major/minor numbers of vinum
superdevice with the VINUM_SUPERDEV macro written for that purpose.
2001-05-23 05:25:45 +00:00
imp
4ebc84e616 Add better support for the Ricoh 5C296 and 5C396 chips. These chips
have a slightly different 3.3V support than the other clones, so
compensate as best we can.  Note: 3.3V support is untested since I do
not have any 3.3V cards that I know of to test it with.
2001-05-23 05:06:04 +00:00
imp
f5bcf454fa Add recognition for Toshiba ToPIC-100.
Submitted by: Shimodaira Toshio <tshimod1@ym.nsw.co.jp> in [bsd-nomads:15589]
2001-05-23 04:37:00 +00:00
dd
7943a92c34 Add a makefile for snp(4) since it can be compiled as a module now. 2001-05-22 22:56:47 +00:00
grog
aaf6ffd984 New header file.
Missed by:	Szilveszter Adam <sziszi@petra.hos.u-szeged.hu>
		David Wolfskill <david@catwhisker.org>
Pointy hat to:	grog
2001-05-22 22:29:35 +00:00
dd
adab6d99db Unifdef DEV_SNP; snp(4) no longer requires these ugly hacks.
Silence by:	-hackers, -audit
2001-05-22 22:16:18 +00:00
dd
3ad1483a6b Convert this driver to (ab?)use line disciplines to get the input it
needs instead of relying on idiosyncratic hacks in the tty subsystem.
Also add module code since this can now be compiled as a module.

Silence by:	-hackers, -audit
2001-05-22 22:13:14 +00:00
bde
5fd5877aef Convert npx interrupts into traps instead of vice versa. This is much
simpler for npx exceptions that start as traps (no assembly required...)
and works better for npx exceptions that start as interrupts (there is
no longer a problem for nested interrupts).

Submitted by:	original (pre-SMPng) version by luoqi
2001-05-22 21:20:49 +00:00
alfred
5382981252 aquire vm mutex in swp_pager_async_iodone. Don't call swp_pager_async_iodone
with the mutex held.
2001-05-22 19:01:26 +00:00
gallatin
8e0770e25c grab the vm mtx around exec_new_vmspace() 2001-05-22 18:45:12 +00:00
brian
7fdccd5e4c MALLOC -> malloc, FREE -> free 2001-05-22 18:10:57 +00:00
ume
24ad56d2ed M_COPY_PKTHDR has to be done before MCLGET.
Obtained from:	KAME
2001-05-22 17:32:02 +00:00
ru
d9df85866b Hide UNION in opt_dontuse.h (see vfs_syscalls.c,v 1.109). 2001-05-22 08:32:13 +00:00
jhb
376941ef28 Remove duplicate include and sort includes. 2001-05-22 07:21:46 +00:00
jhb
85efd8a1d6 Sort includes. 2001-05-22 07:01:11 +00:00
grog
5c77aeefb2 Add vinumobj.h to SRCS. 2001-05-22 06:12:47 +00:00
grog
e36c2b74e1 Remove Malloc definitions (now in vinumext.h) 2001-05-22 06:08:52 +00:00
jhb
fd51037384 Unlock the VM lock at the end of munlock() instead of locking it again. 2001-05-22 06:07:36 +00:00
jhb
c2bd2e9bd5 Sort includes from previous commit. 2001-05-22 05:35:45 +00:00
dd
0ec004ce3f Correct the vm_mtx handling; specifically, don't acquire it in
shm_deallocate_segment because shmexit_myhook calls it, and the latter
should always be called with it already held.

Submitted by:	dwmalone, dd
Approved by:	alfred
2001-05-22 03:56:26 +00:00
grog
32e728a5c9 Add a field 'version' to vinum_conf. This field is a constant which
gets incremented every time the kernel-userland interface changes.
This enables vinum(8) to check for the correct kernel version and to
produce a useful message if it doesn't match.

Requested by:	Too many to count.

Move the definitions of struct drive, sd, plex and volume to
vinumobj.h.

Add a new debug flag, DEBUG_LOCKREQS, which logs only lock requests.
2001-05-22 02:37:28 +00:00
grog
9fadf0687c vinumstart: If a write request is for a RAID-[45] plex or a volume
with more than one plex, the data will be accessed
            multiple times.  During this time, userland code could
            potentially modify the buffer, thus causing data
            corruption.  In the case of a multi-plexed volume this
            might be cosmetic, but in the case of a RAID-[45] plex it
            can cause severe data corruption which only becomes
            evident after a drive failure.  Avoid this situation by
            making a copy of the data buffer before using it.

	    Note that this solution does not guarantee any particular
	    content of the buffer, just that it remains unchanged for
	    the duration of the request.

Suggested by:	alfred
2001-05-22 02:36:47 +00:00
grog
282262c302 tokenize: Take third parameter specifying the maximum number of
parameters to return.  This code is used both in userland and in the
kernel.
2001-05-22 02:35:57 +00:00
grog
1691b48778 Cosmetics: wrap long lines to be < 80 characters. 2001-05-22 02:35:19 +00:00
grog
436eef361c Add a new debug flag, DEBUG_LOCKREQS, which logs only lock requests.
Use this instead of DEBUG_LASTREQS to decide whether to log lock
requests.

MFS:

vinumlock: Catch a potential race condition where one process is
           waiting for a lock, and between the time it is woken and
           it retries the lock, another process gets it and places it
           in the first entry in the table.

           This problem has not been observed, but it's possible, and
           it's easy enough to fix.

Submitted by:   tegge

vinumunlock: Catch a real bug capable of hanging a system.  When
             releasing a lock, vinumunlock() called wakeup_one.  This
             caused wakeups to sometimes get lost.  After due
             consideration, we think that this is due to the fact that
             you can't guarantee that some other process is also
             waiting on the same address.  This makes wakeup_one a
             very dangerous function to use.
2001-05-22 02:34:30 +00:00
grog
86233b07ba Change ioctls to use the expurgated userland version of the Vinum
structures.
2001-05-22 02:33:32 +00:00
grog
e7843236bc format_config: Replace long format lines.
Requested by:  bde

Add retryerrors keyword.

vinum_scandisk: Print a different message if an inadvertent start
command did not find any additional drives.  The previous message "no
drives found" confused and worried many people.

MFS:

vinum_open: Recognize Mylex devices as storage devices.
2001-05-22 02:32:22 +00:00
grog
aa9ab5296b complete_rqe:
In case of error, check the VF_RETRYERRORS flag in the subdisk and
  don't take the subdisk down if it's set, just retry the I/O.

  Requested by:	peter

  If the buffer has been copied (XFR_COPYBUF), release the copied
  buffer when the I/O completes.

  Suggested by:	alfred
2001-05-22 02:31:08 +00:00
grog
0e53f607e9 Remove unnecessary declarations of userland functions.
Desired by:	   bde

This commit is the first of a general cleanup of the header files..
It won't be enough to make bde happy.

Move debug definitions from vinumhdr.h.
2001-05-22 02:30:44 +00:00
grog
d37209863e config_sd: Add code to recognize "retryerrors" keyword.
config_plex: Don't create the device until we're finished.

parse_config: check for corrupted configuration, thus avoiding a
potential panic.

remove_sd_entry: Restore structure.
2001-05-22 02:29:54 +00:00
grog
bcea97656c free_vinum: Change some explicit struct member references to the SD,
PLEX and VOL.
2001-05-22 02:29:15 +00:00
grog
37b41ff62d Add xferinfo flag bit for copied buffers.
Create a new struct rangelockinfo.  In revision 1.21 of vinumlock.c,
the plex info was removed from struct rangelock, since it wasn't
needed there.  It *is* needed for trace information, however, so use
struct rangelockinfo for that.
2001-05-22 02:28:55 +00:00
grog
335e7f48ab New file containing definitions for separate views of objects for
userland and kernel.
2001-05-22 01:41:12 +00:00
alfred
81a30a0ee0 Remove KASSERT test for sleeping on mv_mtx, instead let WITNESS catch
it.

Requested by: jhb
2001-05-22 00:58:20 +00:00
jhb
1dc43912c8 Sort includes. 2001-05-22 00:56:25 +00:00
dd
97e810885f Fix a grammar nit.
PR:		27520
Submitted by:	Michael Lucas <mwlucas@blackhelicopters.org>
2001-05-22 00:29:42 +00:00
jhb
3fa1baf4de Remove a few more spl's I missed earlier.
Reported by:	Michael Harnois <mdharnois@home.com>
Pointy hat:	me
2001-05-22 00:09:26 +00:00
jhb
a445507567 Sort includes from previous commit. 2001-05-21 23:19:50 +00:00
jhb
d47e07ca44 Sort includes. 2001-05-21 18:52:02 +00:00
jhb
0df006928d - Assert that the vm mutex is held in pipe_free_kmem().
- Don't release the vm mutex early in pipespace() but instead hold it
  across vm_object_deallocate() if vm_map_find() returns an error and
  across pipe_free_kmem() if vm_map_find() succeeds.
- Add a XXX above a zfree() since zalloc already has its own locking,
  one would hope that zfree() wouldn't need the vm lock.
2001-05-21 18:47:17 +00:00
jhb
50d57b68fb Axe unneeded spl()'s. 2001-05-21 18:30:50 +00:00
phk
9b5c53fcf3 syslog.h fails to compile with -Wwrite-strings
PR:		27492
Submitted by:	Alexey V. Neyman <avn@any.ru>
2001-05-21 17:32:47 +00:00
gallatin
8a5413bcc8 Change pmap_emulate_reference() so that it only touches the vm_page
flags if it is safe to do so, otherwise it will just alter the pmap state
(eg, clear the appropriate PG_FOx bits).

This gets alpha booting in the face of the vm_mtx introduction.

Reviewed by: dfr
2001-05-21 16:09:29 +00:00
gallatin
1c57c3b027 catch these files up to their i386 neighbors to make alpha boot
prior to the vm_mtx
2001-05-21 16:04:24 +00:00
nyan
b719eb0861 Update pc98 memory probe functions.
- pc98_getmemsize() function returns available memory size under 16MB.
 - getmemsize() function is merged from PC-AT's one.

Submitted by:	chi@bd.mbn.or.jp (Chiharu Shibata) and
		NOKUBI Hirotaka <nokubi@ff.iij4u.or.jp>
2001-05-21 12:51:44 +00:00
nyan
4303a8446d Merged from sys/i386/isa/npx.c revisions 1.99 and 1.100. 2001-05-21 12:20:22 +00:00
nyan
bd9386c173 Merged from sys/i386/i386/machdep.c revisions 1.452 and 1.453. 2001-05-21 11:57:54 +00:00
nyan
9fa80b3cce Merged from sys/boot/i386/btx/btx/btx.s revision 1.24. 2001-05-21 11:49:21 +00:00
hm
39cf58d369 Submitted by: Juha-Matti Liukkonen, Cubical Solutions Ltd (jml@cubical.fi)
Reviewed by:	hm

Bug in i4btel driver read routine corrected. The conditions in the
while() clause caused the receive queue to be referenced before checking
if a channel is connected, leading to kernel panic (do a 'dd
if=/dev/i4btel0 of=/dev/null' on an unconnected tel device, panic will
follow). Correction was to reorder the while clause conditions to check
for connectedness first.
2001-05-21 09:24:48 +00:00
imp
c65c10ec83 Move allocation of ExCA registers from the base driver into the bus
attachment code.
2001-05-21 07:32:46 +00:00
imp
f7d282ea38 Move setting of Vcc bit to before the vcc switch statement. The
datasheets I have seem to indicate that generally this bit is viewed
as a toggle.  Correct comments to match code.
2001-05-21 05:49:15 +00:00
imp
39ce0c191f Next step on the road to pci: power taming.
Work through the various power commands and convert them from a "is
this a foo controller or a foo' controller or a foo''' controller" to
a cabability based scheme.  We have bits in the softc that tell us
what kind of power control scheme the controller uses, rather than
relying on being able to enumerate them all.  Cardbus bridges are
numerous, but nearly all implement the i82365sl-DF scheme (well, a few
implement cirrus CL-PD67xx, but those were made by Cirrus Logic!).

Add a pointer back to the softc in each pcic_slot so we can access
these flags.

Add comments that talk about the issues here.  Also note in passing
that there are two differ Vpp schemes in use and that we may need to
adjust the code to deal with both of them.  Note why it usually works
now.

We have 5 power management modes right now: KING, AB, DF, PD and VG.
AB is for the i82365 stpes A, B and C.  DF is for step DF.  PD is the
cirrus logic extensions for 3.3V while VG is the VADEM extensions for
3.3V.  KING is for the IBM KING controller found on some old cards.
# I'm looking for one of those old cards or a laptop that has the KING
# bridge in it.

We have to still cheat and treat the AB parts like the DF parts
because pci isn't here yet.  As far as I can tell, this is harmless
for actual old parts and necessary to work with 3.3V cards in some
laptops.

This almost eliminates all tests for controller in the code.  There
are still a few unrelated to power that need taming as well.
2001-05-21 04:44:14 +00:00
imp
c647eb3dd3 Next step towards pcic_pci: the ability to allocate mapped memory in attach.
o Introduce flags word to the softc.  This will be used to control various
  aspects of the driver.  Right now there are two bits defined, PCIC_IO_MAPPED
  and PCIC_MEM_MAPPED.  One for ISA cards that are I/O mapped, the other is
  for PCI cards that are memory mapped.  Only the ISA side is implemented
  with this commit.
o Introduce a pcic_dealloc which will cleanly dealloc resources used.  Right
  now it is only supported when called from probe/attach.
o Keep track of resources allocated in the pcic_softc.
o move pcictimeout_ch to the softc so we can support multiple devices
  in polling mode.
o In ISA probe, set PCIC_IO_MAPPED.
o Introduce and compute the slot mask.  This will be used later when
  we expand the number of slots on ISA from 2 to 4.  In such a case, we
  appear to have to use polling mode otherwise we get two different cards
  trying to drive the same interrupt line.  I don't have hardware to
  test this configuration, so I'll stop here.
2001-05-21 03:22:52 +00:00
kuriyama
9ff3821aa3 Add description for 82801BA controller.
MFC after:	1 week
2001-05-21 01:24:14 +00:00
imp
727acb940e Two comments and one bug fix:
o Add defines for the VS[12]# bits in register 0x16.
o Add comment about what we're doing reading register 0x16 (PCIC_CDGC)
  in the DF case.
o Check bit VS1# rather than a random bit I was checking due to a bogus
  transcrition on my part from nakagawa-san's article.
o Add note about IBM KING and 3.3V operation from information larned from
  wildboard.
2001-05-21 00:55:44 +00:00
alfred
cdb5d97b47 Aquire vm mutex when releasing sysv shm segments.
Obtained from: Dima Dorfman <dima@unixfreak.org>
2001-05-20 20:37:47 +00:00
bde
b093b83cde Throw away the complications in npxsave() and their infrastructure.
npxsave() went to great lengths to excecute fnsave with interrupts
enabled in case executing it froze the CPU.  This case can't happen,
at least for Intel CPU/NPX's.  Spurious IRQ13's don't imply spurious
freezes.  Anyway, the complications were usually no-ops because IRQ13
is not used on i486's and newer CPUs, and because SMPng broke them in
rev.1.84.  Forcible enabling of interrupts was changed to
write_eflags(old_eflags), but since SMPng usually calls npxsave() from
cpu_switch() with interrupts disabled, write_eflags() usually just
kept interrupts disabled.
2001-05-20 20:04:40 +00:00
bde
e37c5b4039 Use a critical region to protect almost everything in npxinit().
npxinit() didn't have the usual race because it doesn't save to curpcb,
but it may have had a worse form of it since it uses the npx when it
doesn't "own" it.  I'm not sure if locking prevented this.  npxinit()
is normally caled with the proc lock but not sched_lock.

Use a critical region to protect pushing of curproc's npx state to
curpcb in npxexit().  Not doing so was harmless since it at worst
saved a wrong state to a dieing pcb.
2001-05-20 18:05:44 +00:00
bde
fe3ed5cadc Use a critical region to protect pushing of curproc's npx state to
curpcb in vm86_bioscall().  I don't know if the state is ever in the
npx at that point.
2001-05-20 17:01:20 +00:00
bde
20d39ffc04 Use a critical region to protect saving of the npx state in savectx().
Not doing this was fairly harmless because savectx() is only called
for panic dumps and the bug could at worse reset the state.

savectx() is still missing saving of (volatile) debug registers, and
still isn't called for core dumps.
2001-05-20 16:51:08 +00:00
gallatin
f07e923e1b fix vm_mtx related compiler warning 2001-05-20 16:41:37 +00:00
gallatin
97d9e6d553 fix alpha-MD compile errors after the vm_mtx commit 2001-05-20 16:22:46 +00:00
mckusick
c9a89dbc03 Update softdep_setup_directory_add prototype to reflect changes in
actual function.

Obtained from:	Jim Bloom <bloom@jbloom.jbloom.org>
2001-05-20 15:59:55 +00:00
sumikawa
2f599e5a3d Plug memoly leak in overlaps fragment cases.
Obtained from:	KAME
2001-05-20 15:33:46 +00:00
sanpei
8acf08a790 Add SmartLink 5634PCV SurfRider
PR:		kern/26952
Submitted by:	Simon Dick <simond@irrelevant.org>
2001-05-20 03:12:55 +00:00
jdp
a8fdb15db6 Fix a range checking bug in ng_int32_parse which affected 64-bit
machines.  The code formerly read:

    long val;
    if (val < (long)-0x80000000 || ...)
            return EINVAL;

The constant 0x80000000 has type unsigned int.  The unary `-'
operator does not change the type (or the value, in this case).
Therefore the promotion to long is done by 0-extension, giving
0x0000000080000000 instead of the desired 0xffffffff80000000.  I
got rid of the `-' and changed the cast to (int32_t) to give proper
sign-extension on all architectures and to better reflect the fact
that we are range-checking a 32-bit value.

This commit also makes the analogous changes to ng_int{8,16}_parse
for consistency.

MFC after:	3 days
2001-05-19 19:36:32 +00:00
mckusick
aac9daff0f Must ensure that all the entries on the pd_pendinghd list have been
committed to disk before clearing them. More specifically, when
free_newdirblk is called, we know that the inode claims the new
directory block. However, if the associated pagedep is still linked
onto the directory buffer dependency chain, then some of the entries
on the pd_pendinghd list may not be committed to disk yet. In this
case, we will simply note that the inode claims the block and let
the pd_pendinghd list be processed when the pagedep is next written.
If the pagedep is no longer on the buffer dependency chain, then
all the entries on the pd_pending list are committed to disk and
we can free them in free_newdirblk. This corrects a window of
vulnerability introduced in the code added in version 1.95.
2001-05-19 19:24:26 +00:00
brian
71a548c10f #include <digi/*.h> -> #include <dev/digi/*.h>
Suggested by: bde
2001-05-19 17:06:48 +00:00
brian
197d190ffb Fairwell digiio.h (moved to src/sys/sys) 2001-05-19 09:40:10 +00:00
brian
ef009d9e42 digiio.h has moved to /usr/include/sys 2001-05-19 09:28:59 +00:00
imp
cd110221e4 Add back the plain i82365 to the list of bridges that do special
things to get 3.3V.  It appears that some cardbus chipsets have id
registers that say they are C step parts, but they really support the
DF step 3.3V functionality.

# Need to verify that IBM KING is handled properly since the MISC1
# register is really a cirrus logic only register.
2001-05-19 06:36:09 +00:00
imp
1a0ef36b01 Initialize cinfo structure at compile time rather than run time since
they are now constant.
2001-05-19 06:17:37 +00:00
imp
9566430dfa slots and next haven't been used in a while. GC them. 2001-05-19 06:13:12 +00:00
jlemon
45bfbf2bf8 Add new 'loadavg' entry, fix overflow with meminfo.
PR: 27253, 27350
Submitted by: Jim Pirzyk
2001-05-19 05:54:26 +00:00
imp
4521ca8b4d Now that we've moved the mecia support out of pcic.c to its own
driver, we no longer need to go through the cinfo.XXXX indirections.
restore the direct calls that were replaced earlier.
2001-05-19 05:50:42 +00:00
jlemon
d8a9ae3071 Use new kernel_sysctlbyname function. Remove private copy. 2001-05-19 05:48:07 +00:00
jlemon
73537a93c4 Add convenience function kernel_sysctlbyname() for kernel consumers,
so they don't have to roll their own sysctlbyname function.
2001-05-19 05:45:55 +00:00
imp
19cf17e66b Move ISA specific code into pcic_isa. This is the probe routine, the
get/setb1 routines.  Also expose clrb and setb as pcic_{clrb,setb} so
we can use it from the probe.  pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
imp
26885aebf5 It turns out that Intel's i82365sl-DF step has the same ID as the VLSI
82C146.  The Intel i82365SL-DF supports 3.3V cards.  The Step A/B/C
parts do not appear to support this.  This is hard to know for sure
since it was deduced from "compatible" parts' data sheets and the
article mentioned below.

Rework the VLSI detection to be a little nicer and not depend on
scanning cards twice.  This would allow bad VLSI cards to coexist with
a good intel card, for example.  We now detect i82365SL-DF cards where
before we'd detect a VLSI.  For the most part, this is good, but we
run a small chance of detecting a single slot 82C146 as a i82365SL-DF.
Since I can't find a datasheet for the 82c146, I don't know if this is
a problem or not.

This work is based on an excellent article, in Japanese, by NAKAGAWA,
Yoshihisa-san that appeared in FreeBSD Press Number 4.  He provided a
patch against PAO3 in his article.  Since the pcic.c code has changed
some since then, I've gone ahead and cleaned up his patch somewhat and
changed how the code detects the buggy '146 cards.

I also removed the comment asking if there were other cards that
matched the 82C146 since we found one and additional information isn't
necessary.
2001-05-19 04:53:20 +00:00
alfred
8aa6c173b0 remove my private assertions from tsleep.
add one assertion to ensure we don't sleep while holding vm.
2001-05-19 01:40:48 +00:00
alfred
3285b062fc Regen syscalls that were made mpsafe via vm_mtx
obreak, getpagesize, sbrk, sstk, mmap, ovadvise, munmap, mprotect,
madvise, mincore, mmap, mlock, munlock, minherit, msync, mlockall,
munlockall
2001-05-19 01:37:12 +00:00
alfred
a3f0842419 Introduce a global lock for the vm subsystem (vm_mtx).
vm_mtx does not recurse and is required for most low level
vm operations.

faults can not be taken without holding Giant.

Memory subsystems can now call the base page allocators safely.

Almost all atomic ops were removed as they are covered under the
vm mutex.

Alpha and ia64 now need to catch up to i386's trap handlers.

FFS and NFS have been tested, other filesystems will need minor
changes (grabbing the vm lock when twiddling page properties).

Reviewed (partially) by: jake, jhb
2001-05-19 01:28:09 +00:00
mckusick
c8947d0f03 Must be a bit less aggressive about freeing pagedep structures.
Obtained from:	Robert Watson <rwatson@FreeBSD.org> and
		Matthew Jacob <mjacob@feral.com>
2001-05-18 22:16:28 +00:00
nik
288113e7a8 Add a new ioctl to syscons, CONS_SCRSHOT. Given a userland buffer, it
copies out the current contents of the video buffer for a syscons terminal,
providing a snapshot of the text and attributes.

Based heavily on work originally submitted by Joel Holveck <joelh@gnu.org>
for 2.2.x almost 30 months ago, which I cleaned up a little, and forward
ported to -current.

See also the usr.bin/scrshot utility.
2001-05-18 08:52:56 +00:00
bp
85b499e6f8 Currently there is no way to tell if write operation invoked via
vn_start_write() on the given vnode will be successful. VOP_LEASE() may
help to solve this problem, but its return value ignored nearly everywhere.
For now just assume that the missing upper layer on write means insufficient
access rights (which is correct for most cases).
2001-05-18 07:43:13 +00:00
obrien
b8425680b5 Make _BSD_TIME_T_ (time_t) an int' rather than long'. This will help
flag errors where programmers assume time_t is a long, which it is not on
64-bit platforms.

Submitted by:	bde
2001-05-18 01:43:25 +00:00
obrien
f536c9bfce Style changes -- revert ordering to mostly two revs ago.
Embellish some comments, fix tab'ing.

Requested by:	bde
2001-05-18 01:40:40 +00:00
jhb
70b98f2d04 - Use a timeout for the tsleep in scheduler() instead of having vmmeter()
wakeup proc0 by hand to enforce the timeout.
- When swapping out a process, keep the process locked via the proc lock
  from the first checks up until we clear PS_INMEM and set PS_SWAPPING in
  swapout().  The swapout() function now must be called with the proc lock
  held and releases it before returning.
- Comment out the code to attempt to lock a process' VM structures before
  swapping out.  It is broken in that it releases the lock after obtaining
  it.  If it does grab the lock, it needs to hand it off to swapout()
  instead of releasing it.  This can be revisisted when the VM is locked
  as this is a valid test to perform.  It also causes a lock order reversal
  for the time being, which is the immediate cause for temporarily
  disabling it.
2001-05-18 00:08:38 +00:00
jlemon
e208983bc1 Add workaround for embedded NICs, in particular, the 815E boards.
There appears to be a bug where the chip will lock up when running
in 10Mb/s mode.
2001-05-17 23:50:24 +00:00
jhb
c2a1096080 During the code to pick a process to kill when memory is exhausted, keep
the process in question locked as soon as we find it and determine it to
be eligible until we actually kill it.  To avoid deadlock, we don't block
on the process lock but skip any process that is already locked during our
search.
2001-05-17 22:49:03 +00:00
jhb
028d04532e - Don't panic on a try lock operation for a sleep lock if we hold a spin
lock.  Since we won't actually block on a try lock operation, it's not
  a problem.  Add a comment explaining why it is safe to skip lock order
  checking with try locks.
- Remove the ithread list lock spin lock from the order list.
2001-05-17 22:44:56 +00:00
jhb
7d56154098 - Remove the global ithread_list_lock spin lock in favor of per-ithread
sleep locks.
- Delay returning from ithread_remove_handler() until we are certain that
  the interrupt handler being removed has in fact been removed from the
  ithread.
- XXX: There is still a problem in that nothing protects the kernel from
  adding a new handler while the ithread is running, though with our
  current architectures this is not a problem.

Requested by:	gibbs (2)
2001-05-17 22:43:26 +00:00
jhb
59ffccfbd6 - Move the setting of bootverbose to a MI SI_SUB_TUNABLES SYSINIT.
- Attach a writable sysctl to bootverbose (debug.bootverbose) so it can be
  toggled after boot.
- Move the printf of the version string to a SI_SUB_COPYRIGHT SYSINIT just
  afer the display of the copyright message instead of doing it by hand in
  three MD places.
2001-05-17 22:28:46 +00:00
jhb
c246122199 Use NHWI instead of APIC_IMEN_BITS. 2001-05-17 22:24:46 +00:00
jhb
358431e5bf - Axe the IMEN_BITS and APIC_IMEN_BITS constants.
- Add back in a definition of NHWI which is preferred over ICU_LEN.

Submitted by:	bde
2001-05-17 22:24:17 +00:00
dmlb
fff1e2f242 Primary purpose of this commit is to enable support for the Aviator
Pro and Raylink cards with version 5 firmware. Only infra-structure
mode has been tested. Specific changes for this feature are:

        o Add RFC1042 encapsulation of IP datagrams

        o Add authentication and association

        o Decode of the beacon (although not used)

Other changes have been made:

        o Pass command completion status to *_done (in place for
          adding proper error recovery)

	o Move a couple of state variables into the current
	  network parameters structure. This is in prep. for
	  dealing with roaming.

MFC after:	1 week
2001-05-17 22:23:49 +00:00
jhb
fbaf605e32 Disable the wi driver locking for now. The driver tries to tsleep with the
driver lock held on detach which can lead to annoying and useless panics.
2001-05-17 22:20:54 +00:00
rwatson
51497c8b5f o Modify access control checks in p_candebug() such that the policy is as
follows: the effective uid of p1 (subject) must equal the real, saved,
  and effective uids of p2 (object), p2 must not have undergone a
  credential downgrade.  A subject with appropriate privilege may override
  these protections.

  In the future, we will extend these checks to require that p1 effective
  group membership must be a superset of p2 effective group membership.

Obtained from:	TrustedBSD Project
2001-05-17 21:48:44 +00:00
dmlb
93b02fbe46 Add a couple more codes for upcoming raylink driver additions.
MFC after:	3 days
2001-05-17 21:37:41 +00:00
alfred
91f8c63e8d Cleanup
Remove comment about setting error for reads on EOF, read returns 0 on
EOF so the code should be ok.

Remove non-effective priority boost, PRIO+1 doesn't do anything
(according to McKusick), if a real priority boost is needed it should
have been +4.

Style fixes:
.) return foo -> return (foo)
.) FLAG1|FlAG2 -> FLAG1 | FlAG2
.) wrap long lines
.) unwrap short lines
.) for(i=0;i=foo;i++) -> for (i = 0; i=foo; i++)
.) remove braces for some conditionals with a single statement
.) fix continuation lines.

md5 couldn't verify the binary because some code had to
be shuffled around to address the style issues.
2001-05-17 19:47:09 +00:00
alfred
2f1ebc4a57 initialize pipe pointers 2001-05-17 18:22:58 +00:00
alfred
37f8fb3daa pipe_create has to zero out the select record earlier to avoid
returning a half-initialized pipe and causing pipeclose() to follow
a junk pointer.

Discovered by: "Nick S" <snicko@noid.org>
2001-05-17 17:59:28 +00:00
ru
1db06aeffa Cosmetics to rev.1.89: removed argument names in a function prototype. 2001-05-17 17:57:35 +00:00
bde
17ca7871ca Backed out rev.1.8. Rev.1.8 was just to support a bogus unused include
in ng_tty.c.
2001-05-17 11:54:30 +00:00
sos
892af87533 Update to use the changed ioctl interface. 2001-05-17 10:29:30 +00:00
sos
269a1dffa4 Change the ioctl interface to prepare for new functionality. 2001-05-17 10:28:59 +00:00
mckusick
5411edc0fb When a new block is allocated to a directory, an fsync of a file
whose name is within that block must ensure not only that the block
containing the file name has been written, but also that the on-disk
directory inode references that block. When a new directory block
is created, we allocate a newdirblk structure which is linked to
the associated allocdirect (on its ad_newdirblk list). When the
allocdirect has been satisfied, the newdirblk structure is moved
to the inodedep id_bufwait list of its directory to await the inode
being written.  When the inode is written, the directory entries
are fully committed and can be deleted from their pagedep->id_pendinghd
and inodedep->id_pendinghd lists.
2001-05-17 07:24:03 +00:00
bp
d0e9de0900 VOP getwritemount() can be invoked on vnodes with VFREE flag set (used in
snapshots code). At this point upper vp may not exist.
2001-05-17 04:58:25 +00:00
bp
61ab4d4ff9 Use vop_*vobject() VOPs to get reference to VM object from upper or lower fs. 2001-05-17 04:52:57 +00:00
bp
f9fd9a4dce Do not leave an extra reference on vnode.
PR:		kern/27250
Submitted by:	"Vladimir B. Grebenschikov" <vova@express.ru>
MFC after:	2 weeks
2001-05-17 04:40:01 +00:00
dcs
9a2404aa1f Allocate more memory if necessary. 2001-05-17 04:34:02 +00:00
brian
853c35eea7 digiModel_t -> enum digi_model
Remove a forgotton and unused structure.
2001-05-17 01:42:18 +00:00
obrien
89ba5881e5 Consistently define the rune types.
Follow NetBSD's lead and add a _BSD_MBSTATE_T_ type.
2001-05-16 22:32:44 +00:00
obrien
9e804492ab Move the int typedefs to the top so they can be used in defining other types.
Ensure every platform has __offsetof.
Make multiple inclusion detection consistent with other
  <platform>/include/*.h files.
2001-05-16 22:21:43 +00:00
iedowse
dafd513732 Change the second argument of vflush() to an integer that specifies
the number of references on the filesystem root vnode to be both
expected and released. Many filesystems hold an extra reference on
the filesystem root vnode, which must be accounted for when
determining if the filesystem is busy and then released if it isn't
busy. The old `skipvp' approach required individual filesystem
xxx_unmount functions to re-implement much of vflush()'s logic to
deal with the root vnode.

All 9 filesystems that hold an extra reference on the root vnode
got the logic wrong in the case of forced unmounts, so `umount -f'
would always fail if there were any extra root vnode references.
Fix this issue centrally in vflush(), now that we can.

This commit also fixes a vnode reference leak in devfs, which could
result in idle devfs filesystems that refuse to unmount.

Reviewed by:	phk, bp
2001-05-16 18:04:37 +00:00
imp
2f5c2dfede Catch up with some recent changes:
1) pcic_isa.c
	2) For pc98, add mecia driver and -DPC98 to command line.
	3) pcic_p.c -> pcic_pci.c
2001-05-16 07:35:54 +00:00
imp
14f69765f8 Separate out isa attachment to its own file. The pci attachment will
soon attach directly to pcic rather than the kludge pci-pcic device we
have now.

In some ways, this is similar to the work PAO3 did to try to support
cardbus bridges.  In some ways different.  This and future commits
will be taking from the spirit of many of those changes.  pcicvar.h is
completely different from the pcicvar.h that appeared in PAO3, but
similar in concept.
2001-05-16 07:32:04 +00:00
imp
3d149ae334 This file is now obsolete. The #defines in it have never been used
and the pcic_devclass no longer is used by pccard.c.
2001-05-16 06:14:51 +00:00
alfred
f678704709 remove include of ipl.h because it no longer exists 2001-05-16 02:52:06 +00:00
jhb
c87fc95350 Lock the procfs functions for doing a single step and reading/writing
registers better.  Hold sched_lock not only for checking the flag but
also while performing the actual operation to ensure the process doesn't
get swapped out by another CPU while we the operation is being performed.
2001-05-16 00:47:27 +00:00
imp
32652db903 pcic98reg.h is now contained in meciareg.h. 2001-05-15 23:53:18 +00:00
imp
308ca3aa7a The mecia support has moved to the mecia driver, so remove the copy of
it here.
2001-05-15 23:50:58 +00:00
imp
29a0946cc9 Add mecia driver definitions. 2001-05-15 23:47:17 +00:00
imp
62d3853146 This code touches MD code inappropriately. So we have to include pc98
specific file for pc98.
2001-05-15 23:43:02 +00:00
imp
f9e46c64d1 A new driver for the MECIA. This is the NEC Original PCMCIA
controller found in many of the early NOTE98 machines that were
produced.  This controller is completely unlike the intel 82365, so
I've separated it out from the main pcic driver.
2001-05-15 23:34:42 +00:00
jhb
b325e18899 "Sir, the deorbit burn completed succesfully."
RIP {sys/machine}/ipl.h.
2001-05-15 23:30:37 +00:00
jhb
3fbeaa9056 Remove unneeded includes of sys/ipl.h and machine/ipl.h. 2001-05-15 23:22:29 +00:00
jhb
85db2f279b Add a PROC_TRYLOCK() macro to perform a mtx_trylock() on the process lock. 2001-05-15 23:19:52 +00:00
jhb
20e19e3f79 Remove unneeded includes in the i386 case. 2001-05-15 23:16:18 +00:00
jhb
1ee607ffea - Remove unneeded include of sys/ipl.h.
- Lock the process before calling killproc() to kill it for exceeding the
  maximum CPU limit.
2001-05-15 23:15:06 +00:00
jhb
36dcd7aa2f - Remove unneeded include of sys/ipl.h.
- Require the proc lock be held for killproc() to allow for the vmdaemon to
  kill a process when memory is exhausted while holding the lock of the
  process to kill.
2001-05-15 23:13:58 +00:00
jhb
b5845858e6 Move the definition of HWI_MASK to the i386/isa/icu.h header right next to
the definition of ICU_LEN.
2001-05-15 23:11:48 +00:00
jhb
1416b59ebc - Use ICU_LEN rather than NHWI for the size of the array of ithreads.
- Remove unneeded include of sys/ipl.h.
2001-05-15 22:31:08 +00:00