Commit Graph

30810 Commits

Author SHA1 Message Date
Jake Burkholder
4f91e3efb2 Implement delivery of tlb shootdown ipis. This is currently more fine grained
than the other implementations; we have complete control over the tlb, so we
only demap specific pages.  We take advantage of the ranged tlb flush api
to send one ipi for a range of pages, and due to the pm_active optimization
we rarely send ipis for demaps from user pmaps.

Remove now unused routines to load the tlb; this is only done once outside
of the tlb fault handlers.
Minor cleanups to the smp startup code.

This boots multi user with both cpus active on a dual ultra 60 and on a
dual ultra 2.
2002-03-07 06:01:40 +00:00
Jake Burkholder
39028e8396 Modify the tlb demap API to take a pmap instead of a tlb context number.
Due to allocating tlb contexts on the fly, we only ever need to demap the
primary context, non-primary contexts have already been implicitly flushed
by context switching.  All we really need to tell is if its a kernel demap
or not, and its easier just to compare against the kernel_pmap which is a
constant.
2002-03-07 05:25:15 +00:00
Jake Burkholder
bc9b764621 Implement kthread context stealing. This is a bit of a misnomer because
the context is not actually stolen, as it would be for i386.  Instead of
deactivating a user vmspace immediately when switching out, and recycling
its tlb context, wait until the next context switch to a different user
vmspace.  In this way we can switch from a user process to any number of
kernel threads and back to the same user process again, without losing any
of its mappings in the tlb that would not already be knocked by the automatic
replacement algorithm.  This is not expected to have a measurable performance
improvement on the machines we currently run on, but it sounds cool and makes
the sparc64 port SMPng buzz word compliant.
2002-03-07 05:15:43 +00:00
Mike Silbersack
77a7d074e4 Unconditionally limit maxproc so that it is not possible
to exhaust all kmaps.  The only reward for setting maxproc
to a value which will cause kmap exhaustion is a panic
during a forkbomb attack.

MFC after:	3 days
2002-03-07 04:50:36 +00:00
Jake Burkholder
74acd9bb58 Include machine/smp.h. 2002-03-07 04:48:17 +00:00
Jake Burkholder
752dff3d9c Add needed includes of machine/smp.h, remove nested include in sys/smp.h
so that inlines in machine/smp.h can use variables declared in sys/smp.h.
2002-03-07 04:43:51 +00:00
Matthew Dillon
8c5dffe8ca Fix a bug in the vm_map_clean() procedure. msync()ing an area of memory
that has just been mapped MAP_ANON|MAP_NOSYNC and has not yet been accessed
will panic the machine.

MFC after:	1 day
2002-03-07 03:54:56 +00:00
Warner Losh
a3133b5897 Two style(9) fixes:
- return(foo);	(note parens)
- use __FBSDID()
2002-03-07 00:11:42 +00:00
Warner Losh
8e635fb764 Check for NULL on resource allocation. For the moment, punt, but we should
be smarter about a) cleanup and b) fallback.
2002-03-07 00:05:26 +00:00
Crist J. Clark
c1b9f61d5e Sync with GENERIC. WITNESS_SKIPSPIN, and the ciss and iir devices. 2002-03-06 19:44:08 +00:00
John Hay
b72c70af4c Add the "Avlab Technology, PCI IO 2S" card.
Submitted by:	Terry Glanfield <Terry.Glanfield@program-products.co.uk>
2002-03-06 17:37:27 +00:00
Dag-Erling Smørgrav
e97c3e3d5c Rename runq_find() to runq_findproc(), and hide it behind #ifdef DIAGNOSTIC,
as it can have a severe impact on performance under high load, and the bug
it was meant to catch was fixed ages ago.
2002-03-06 15:34:07 +00:00
Maxim Konovalov
cf11f48256 Fix a typo, unbreak the world.
Thanks to:	mux
Approved by:	ru
2002-03-06 12:28:51 +00:00
Bruce Evans
3006e31679 Don't (blindly) truncate the unit number to 4 digits when formatting the
string returned by device_get_nameunit().
2002-03-06 11:34:02 +00:00
Maxim Konovalov
9dfd307b10 Maximum semid is seminfo.semmni not seminfo.semmsl.
PR:		kern/34979
Submitted by:	James Gritton <jamie@gritton.org>
Reviewed by:	alfred, ru
Approved by:	ru
MFC after:	1 week
2002-03-06 10:52:49 +00:00
Ruslan Ermilov
97b6284457 Fixed compilation warnings. 2002-03-06 08:55:34 +00:00
Bruce Evans
d4621eac57 Fixed a printf format error again. Rev.127 was clobbered in rev.1.128
by removing parentheses.  The main bug is in gcc: on machines with
64-bit longs and 64-bit long longs,

    (unsigned long long)rdp->total_sectors / ((1024L * 1024L) / DEV_BSIZE))

has type plain unsigned long instead of the correctly promoted type
unsigned long long, so it can not be printfed using %llu format.  Even
1ULL / 1L is mispromoted.  Anyway, casting the correct operand
automatically avoids the problem.  We do not want to to pessimize the
division; we just want to convert to a common maximal type for printing.
2002-03-06 06:33:33 +00:00
Matthew Dillon
b9b7a4be90 Add a sequential iteration optimization to vm_object_page_clean(). This
moderately improves msync's and VM object flushing for objects containing
randomly dirtied pages (fsync(), msync(), filesystem update daemon),
and improves cpu use for small-ranged sequential msync()s in the face of
very large mmap()ings from O(N) to O(1) as might be performed by a database.

A sysctl, vm.msync_flush_flag, has been added and defaults to 3 (the two
committed optimizations are turned on by default).  0 will turn off both
optimizations.

This code has already been tested under stable and is one in a series of
memq / vp->v_dirtyblkhd / fsync optimizations to remove O(N^2) restart
conditions that will be coming down the pipe.

MFC after:	3 days
2002-03-06 02:42:56 +00:00
Matthew Dillon
2cfaf1e315 cleanup readability syntax prior to ongoing b_resid work commits.
MFC after:	1 day
2002-03-06 00:44:30 +00:00
Hajimu UMEMOTO
d692f3fc1a - use des_ecb3_encrypt().
- style: added spaces after /* and before */

Obtained from:	KAME
MFC after:	2 weeks
2002-03-05 21:12:41 +00:00
Hajimu UMEMOTO
b5d8e72dc3 Oops, now, encription and decription are separate function.
MFC after:	2 weeks
2002-03-05 20:32:49 +00:00
Julian Elischer
d2ca21a9b2 Official timeout routines for netgraph nodes that know how to
use (and abuse) the node locking system.

MFC after:	1 week
2002-03-05 20:26:20 +00:00
Robert Watson
89e1164ee2 Three p_ucred -> td_ucred's missed in jhb's earlier pass; all appear to
be safe.
2002-03-05 19:45:45 +00:00
Robert Watson
b0ad6e203a The change from td->td_proc->p_ucred to td->td_ucred has shortened some
lines: more agressively line wrap under those circumstances.
2002-03-05 19:31:25 +00:00
John Baldwin
c6f55f33ea - Use td_ucred for jail checks.
- Move jail checks and some other checks involving constants and stack
  variables out from under Giant.  This isn't perfectly safe atm because
  jail_sysvipc_allowed is read w/o a lock meaning that its value could be
  stale.  This global variable will soon become a per-jail flag, however,
  at which time it will either not need a lock or will use the prison lock.
2002-03-05 18:57:36 +00:00
Robert Watson
fdc6e087c0 Reserve a mount flag, MNT_MULTILABEL, used by the MAC subsystem and
individual filesystems to determine whether they should operate in
"file system as a single object" mode, or "file system as a set of objects
with individual labels" mode.  Note: in the trustedbsd_mac branch,
this is refered to as "MNT_MULTILEVEL", but the two mean the same thing.
MNT_MULTILABEL is more suggestive of a flexible policy system than one
providing purely hierarchal policies.  The need for a reserved flag will
go away once nmount() is done.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-03-05 18:48:15 +00:00
Robert Watson
7e595f7619 Merge reservation of two SI_SUB constants for the MAC policy framework
and for individual MAC policies.  The framework event initializes the
access control subsystem; the policy event allows policies to register
themselves.  The gap in between is for all the things we'll think of
later.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-03-05 18:44:11 +00:00
Eivind Eklund
f52bd684f3 * Move bswlist declaration and initialization from kern/vfs_bio.c to
vm/vm_pager.c, which is the only place it is used.
* Make the QUEUE_* definitions and bufqueues local to vfs_bio.c.
* constify buf_wmesg.
2002-03-05 18:20:58 +00:00
Brian Feldman
0346e9733a Use revoke_and_destroy_dev() instead of destroy_dev() when removing /dev/net
pseudo-devices when an interface goes away.  Otherwise, an open /dev/net/foo0
when the interface is removed can cause a crash.

Not objected to by:	jlemon
2002-03-05 17:50:35 +00:00
Eivind Eklund
04858e7ee4 Change wmesg to const char * instead of char * 2002-03-05 17:45:12 +00:00
Robert Drehmel
aa22cb469c Change every occurrence of "bootblock" into "boot1" after
the repo-move from "src/sys/boot/sparc64/bootblock".
2002-03-05 16:39:36 +00:00
Warner Losh
f1bdbc6674 Add roaming and microwave oven support. Some minor formatting nits.
Some buggy firmware workarounds.  Fix some endian bugs.

These reduce the diffs from NetBSD, but NetBSD does have more changes since
my last manual merge.
2002-03-05 16:18:14 +00:00
Robert Watson
ba51c2659d Part II: update various mechanically generated files to allow for new
system call number allocations.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-03-05 16:13:01 +00:00
Warner Losh
a90b09d20a Remove __P to reduce diffs with NetBSD and my private tree. 2002-03-05 16:12:41 +00:00
Robert Watson
11ffd032ff Reserve system call numbers for the MAC framework. This will prevent
people working on the MAC tree from getting toasted whenever system call
numbers are allocated in the main tree (for example, for KSE :-).
Calls allocated: __mac_{get,set}_proc, __mac_{get,set}_{fd,file}().

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-03-05 16:11:11 +00:00
Warner Losh
0e4c175bb9 Merge a little from NetBSD. 2002-03-05 16:06:54 +00:00
Eivind Eklund
eb8e6d5276 Document all functions, global and static variables, and sysctls.
Includes some minor whitespace changes, and re-ordering to be able to document
properly (e.g, grouping of variables and the SYSCTL macro calls for them, where
the documentation has been added.)

Reviewed by:	phk (but all errors are mine)
2002-03-05 15:38:49 +00:00
Robert Drehmel
6f60771b6d Fix a warning. 2002-03-05 15:19:33 +00:00
Poul-Henning Kamp
c794254d96 Move sysctl debug.sizeof into sys/sysctl.h where it belongs. 2002-03-05 13:56:58 +00:00
Poul-Henning Kamp
26facaeb4d If in strategy we find that we have no devsw on the device anymore we
are probably talking about some disk-device which wente away, so
return ENXIO instead of panicing.
2002-03-05 13:25:57 +00:00
Robert Drehmel
83ea6c23b5 - Fix seeking for offsets requiring more than 32 bits.
- Add sanity checks to lookup().
 - Implement the 'l' modifier in printf().

Submitted by:	tmm
2002-03-05 11:22:43 +00:00
Seigo Tanimura
5d0451a3ed Add sys/dev/ufm.c.
Forgotten by:	alfred
Spotted by:	LINT
2002-03-05 11:19:23 +00:00
Maxim Konovalov
21147bea38 Remove duplicated and wrong sc->sc_last_recv setting. It unbreaks
active-filter in pppd(8).

PR:			kern/12281
Submitted by:		Tim Moore <moore@bricoworks.com>
Not objected by:	peter
Reviewed by:		ru
Approved by:		ru
MFC after:		1 week
2002-03-05 10:12:04 +00:00
Jeff Roberson
88c99cfbc8 Add a new variable mp_maxid. This is used so that per cpu datastructures may
be allocated as arrays indexed by the cpu id.  Previously the only reliable
way to know the max cpu id was through MAXCPU. mp_ncpus isn't useful here
because cpu ids may be sparsely mapped, although x86 and alpha do not do this.

Also, call cpu_mp_probe much earlier so the max cpu id is known before the VM
starts up.  This is intended to help support per cpu queues for the new
allocator, but may be useful elsewhere.

Reviewed by:	jake
Approved by:	jake
2002-03-05 10:01:46 +00:00
Søren Schmidt
11de413756 Misc little cleanups:
Link if only ATAPI device in kernel config
Remove unused #includes
Rearrange a bit in ata-raid to make diff against -stable smaller
Enable wc as default again, dunne how this happend...
2002-03-05 09:24:19 +00:00
Hajimu UMEMOTO
b5a8f767a6 - Speedup 3DES by using assembly code for i386.
- Sync des/blowfish to more recent openssl.

Obtained from:	KAME/NetBSD
MFC after:	2 weeks
2002-03-05 09:19:02 +00:00
Marcel Moolenaar
2242af42cf Call ast() only when we're handling a user trap. 2002-03-05 06:13:22 +00:00
Seigo Tanimura
996abba928 Track the number of wired pages to avoid unwiring unwired pages.
Reviewed by:	alfred
2002-03-05 00:51:03 +00:00
Crist J. Clark
3174c81c9c Unbreak bridge.ko. Replace an unresolved symbol with the actions it
was meant to take.

Submitted by:	luigi
Approved by:	luigi
MFC after:	3 days
2002-03-05 00:07:17 +00:00
Brooks Davis
3d4ce33dbf Add cloning support to the loopback interface.
Submitted by:	mux
2002-03-04 21:46:00 +00:00
Brooks Davis
b75496fedf Change the network interface cloning API so the destroy function returns
an int errorcode instead of void in preperation for merging cloning of
the loopback device.

Submitted by:	mux
MFC after:	2 weeks
2002-03-04 21:43:49 +00:00
Søren Schmidt
cd82af3c08 Update header. 2002-03-04 21:08:35 +00:00
Alan Cox
2be21c5e68 o Create vm_pageq_enqueue() to encapsulate code that is duplicated time
and again in vm_page.c and vm_pageq.c.
 o Delete unusused prototypes.  (Mainly a result of the earlier renaming
   of various functions from vm_page_*() to vm_pageq_*().)
2002-03-04 18:55:26 +00:00
Mitsuru IWASAKI
899ccf541a Add generalized power profile code.
This makes other power-management system (APM for now) to be able to
generate power profile change events (ie. AC-line status changes), and
other kernel components, not only the ACPI components, can be notified
the events.

 - move subroutines in acpi_powerprofile.c (removed) to kern/subr_power.c
 - call power_profile_set_state() also from APM driver when AC-line
   status changes
 - add call-back function for Crusoe LongRun controlling on power
   profile changes for a example
2002-03-04 18:46:13 +00:00
Doug Rabson
2d0639e55d Add PSEUDOFS. 2002-03-04 18:01:56 +00:00
Doug Rabson
1fc142b38f Add emulation support for PAL_VM_SUMMARY. 2002-03-04 12:47:47 +00:00
Jake Burkholder
eb5b9c0be3 Add support for starting secondary cpus in kernel, as opposed to relying
on the loader to do it.  Improve smp startup code to be less racy and to
defer certain things until the right time.  This almost boots single user
on my dual ultra 60, it is still very fragile:

SMP: AP CPU #1 Launched!
Enter full pathname of shell or RETURN for /bin/sh:
# ls
Debugger("trapsig")
Stopped at      Debugger+0x1c:  ta              %xcc, 1
db> heh
No such command
db>
2002-03-04 07:12:36 +00:00
Jake Burkholder
907164660a Dig the information about which tlb slots were used to map the kernel out
of the metadata passed by the loader.
2002-03-04 07:07:10 +00:00
Jake Burkholder
5573db3f0b Allocate tlb contexts on the fly in cpu_switch, instead of statically 1 to 1
with pmaps.  When the context numbers wrap around we flush all user mappings
from the tlb.  This makes use of the array indexed by cpuid to allow a pmap
to have a different context number on a different cpu.  If the context numbers
are then divided evenly among cpus such that none are shared, we can avoid
sending tlb shootdown ipis in an smp system for non-shared pmaps.  This also
removes a limit of 8192 processes (pmaps) that could be active at any given
time due to running out of tlb contexts.

Inspired by:		the brown book
Crucial bugfix from:	tmm
2002-03-04 05:20:29 +00:00
Jake Burkholder
34aef253aa Fix obscure problems with vfork where part of the parent's stack could be
clobbered by the child.  This is more complicated than usual because the
window that could get clobbered is pushed in kernel mode, so a lot of
registers would have to be saved in other registers in userland and we
don't have enough.  What we do have is space in the pcb to temporarily
store user windows that were spilled in kernel mode, but could not be
immediately stored to the user stack.  So we copy in the parent's topmost
window and save it in the pcb, and arrange for it to be copied back out
when the child is done frobbing the stack.

Reviewed by:	tmm
2002-03-04 05:07:22 +00:00
Alfred Perlstein
63c6b757ab Support for USB fm radio.
Submitted by: David Yeske <dyeske@yahoo.com>
2002-03-04 03:51:21 +00:00
Warner Losh
dc4ec1188e Add a bunch of cards from NetBSD and maybe other places.
Ericsson Wireless Lan
Simple Tech Spectrum 24 Alt
Socket LP WLAN CF
Symbol LA4100
2002-03-04 02:59:20 +00:00
Orion Hodson
38c81beede Suspend and resume related patches from Toshikazu Ichinoseki <t.ichinoseki@nifty.com>.
PR's: kern/35484, kern/35230.
2002-03-04 00:36:04 +00:00
Alan Cox
64190c7a2f Call vm_pageq_remove_nowakeup() rather than duplicating it. 2002-03-03 22:36:14 +00:00
Bosko Milekic
5a4f147089 Fix bug in mb_alloc that made systems configured with
PAGE_SIZE / MCLBYTES == 1 crash. Fix them by changing the
appropriate "allocate new page and bucket" code in mb_alloc to use
the macro for properly grabbing an allocated object from a bucket,
the one that checks whether the bucket is empty.
This should allow ken to continue testing zero-copy stuff on -CURRENT.

Noticed and provided debug info: ken
2002-03-03 22:10:04 +00:00
Mark Murray
4a7cdfd7b9 Provide infrastructure for harvesting SWI entropy. 2002-03-03 20:09:42 +00:00
Mark Murray
e119960112 Massive lint-inspired cleanup.
Remove unneeded includes.
Deal with unused function arguments.
Resolve a boatload of signed/unsigned imcompatabilities.
Etc.
2002-03-03 19:44:22 +00:00
Doug Rabson
08cece4091 * Include <sys/ucontext.h> so that this compiles again.
* Move the section which manipulates ia64_pal_base to after cninit() so
  that we don't risk printing anything before we have a console.
* Don't call ia64_probe_sapics() for a SKI build. This should really
  be dependant on ACPICA being present or something.
2002-03-03 19:23:15 +00:00
Søren Schmidt
0f0e725b18 Forgot this litte patch, scale the individual disk size from the
arrays total size depending on width of the array.
2002-03-03 16:36:19 +00:00
Søren Schmidt
6f87be981b Major update of the ATA RAID code, part 3:
Add code to properly detach/attach disks that are part of a RAID.

Mark a disk that is attached on an ATA channel belonging to a
RAID as a spare disk that can be used for rebuilding failed RAID1's.

Add support for rebuilding failed RAID1's.

Several fixes to the detach/attach code.

For replacing a disk in a failed RAID1 do the following:

Find the controller channel# of the failed disk.

Exec 'atacontrol detach <channel#>' to free the disk from the system.

Replace the failed disk with a new one of at least the same size.
If your have your disks in drawers/enclosures this can be done with
the system still running.

Exec 'atacontrol attach <channel#>' to add the disk to the system and
mark it as a valid spare for rebuild.

Exec 'atacontrol rebuild <array#>'

The system will rebuild the array on the fly, the array can still
be used during this, although with slower performance.

Please let me know of any problems with this!

Sponsored by: Advanis Inc.

MFC after: 2 weeks
2002-03-03 15:36:21 +00:00
Søren Schmidt
95f78da7d8 Add new command definition for rebuilding RAID arrays. 2002-03-03 15:00:39 +00:00
Takanori Watanabe
54f737c3a6 Add two IrDA controller ID: IBM TP240(Probably NSC compatible), and SMC IrCC
controller.
2002-03-03 13:26:59 +00:00
Dima Dorfman
e74d483140 Check the version of ex_anon (a `struct xucred') before using it to
fill out netc_anon (a `struct ucred'), and add an XXX around the
entire operation since it isn't clear whether it's doing the right
thing with things like cr_uidinfo and cr_prison.
2002-03-03 06:07:57 +00:00
Warner Losh
d26fb41443 Get the generic name right 2002-03-03 01:04:39 +00:00
Alan Cox
5714577006 Remove some long dead code. 2002-03-02 22:21:42 +00:00
Yoshihiro Takahashi
900ae1c4ab MFi386: revision 1.394. 2002-03-02 13:21:12 +00:00
Yoshihiro Takahashi
47f470f8b5 MFi386: revision 1.498. 2002-03-02 13:19:22 +00:00
Seigo Tanimura
92c914f936 Fix lock leakage and late unlock.
Submitted by:	bde
2002-03-02 12:42:24 +00:00
Bruce Evans
ffb382b4dc Deverbosified previous 2 commits (removed the rotted list of reasons why
<sys/systm.h> is included instead of adding to it).

Approved by:	previous committer
2002-03-02 11:14:13 +00:00
Bruce Evans
b980740327 Fixed a printf format error. 2002-03-02 10:54:33 +00:00
Brooks Davis
16555f3a03 Make 128-bit WEP (aka 104-bit WEP) work with Prism based cards.
Submitted by:	Thomas Skibo <skibo@pacbell.net>
MFC after:	3 days
2002-03-02 00:06:23 +00:00
Matt Jacob
b96eda156f Make it compile again. 2002-03-01 23:15:45 +00:00
Matt Jacob
8f22da0d0b Fix mcpcia.c so it compiles again. 2002-03-01 23:10:19 +00:00
Orion Hodson
b3aeda3f1f Add support for VT8233. 2002-03-01 20:30:13 +00:00
Jake Burkholder
e45a21d07a We don't need KTR_COMPILE in assym.s, its already in opt_global.h. Add
assyms for more ktr trace classes.
2002-03-01 16:22:06 +00:00
Jake Burkholder
b8c926a9ab Use a better trace class for ktr traces in the tlb fault handlers, which are
rather loud.
2002-03-01 16:17:50 +00:00
Hajimu UMEMOTO
e4c606a0ca missing splx
Obtained from:	KAME
MFC after:	1 week
2002-03-01 13:13:17 +00:00
Hajimu UMEMOTO
ab101c5598 (when new sa is preferred than old sa)
even if we fail to send pfkey message, remove the old sa.

Obtained from:	KAME
MFC after:	1 week
2002-03-01 12:17:21 +00:00
David E. O'Brien
969e32658d Fix syntax error, where this was not compile tested after style(9)'ing. 2002-03-01 07:05:45 +00:00
Jake Burkholder
dd4af53607 Catch up to change in tte format.
Forgetten by:	jake
Submitted by:	tmm
2002-03-01 06:17:28 +00:00
David E. O'Brien
b7bbb709c2 Use vnode_if.awk rather than vnode_if.pl 2002-03-01 01:21:29 +00:00
David E. O'Brien
fda3199fb9 Return vnode_if back to its AWK roots.
It became a Perl script in rev 1.20.  This removes one more dependence
on perl for the kernel build.
2002-03-01 01:20:23 +00:00
Andrew R. Reiter
66c862bc1b - Move a comment from being on the same line as a #ifdef to the line
following it.  This should have gone in the previous commit, but
  misviewed Bruce's patch.

Requested by: bde
2002-02-28 21:52:08 +00:00
Mark Murray
f5d9a10b94 Make it a bit clearer where this file is to be used and where it
should not be. (Comments only)

Inspired by:	bde
2002-02-28 18:26:30 +00:00
Andrew Gallatin
ac278dcfc0 add inlines for bswap*.
smaller versions of the byteswap routines were obtained from NetBSD
2002-02-28 18:21:51 +00:00
Andrew Gallatin
030cb46918 recover from namespace collision caused by un-static'ing pci_alloc_resource()
in rev  1.187 of sys/dev/pci/pci.c
2002-02-28 18:18:41 +00:00
Mark Murray
6df66172e3 Adjust the includes a bit.
Requested by:	bde
2002-02-28 17:41:42 +00:00
Hajimu UMEMOTO
b7d6d9526c - Set inc_isipv6 in tcp6_usr_connect().
- When making a pcb from a sync cache, do not forget to copy inc_isipv6.

Obtained from:	KAME
MFC After:	1 week
2002-02-28 17:11:10 +00:00
Hajimu UMEMOTO
c3cf07a14a - In nd6_rtrequest(), ignored a route when it is created by cloning and
is not a neighbor.  see comments for the detailed reason.

- Rejected the process of nd6_rtrequest() when the request is RESOLVE and
the interface does not need neighbor caches.

Obtained from:	KAME
MFC After:	1 week
2002-02-28 17:05:46 +00:00
Benno Rice
677bcc872c cpu_switch now works, for kthreads at least. 2002-02-28 12:06:49 +00:00
Benno Rice
0e1338662a Various cleanups. 2002-02-28 12:00:24 +00:00
Benno Rice
b8160b5af4 - Prevent the decrementer interrupt handler from nesting.
- Catch some more cases of PSL_EE and PSL_RI getting out of sync.
2002-02-28 11:57:47 +00:00
Benno Rice
ac6ba8bd4a - Modify pmap_activate so it only marks the pmap as active.
- Add a pmap_deactivate function.
2002-02-28 11:55:44 +00:00
Ian Dowse
167b8d0334 In sosend(), enforce the socket buffer limits regardless of whether
the data was supplied as a uio or an mbuf. Previously the limit was
ignored for mbuf data, and NFS could run the kernel out of mbufs
when an ipfw rule blocked retransmissions.
2002-02-28 11:22:40 +00:00
Yoshihiro Takahashi
28a90658c4 Add -D_KERNEL to CFLAGS for ntohl(). 2002-02-28 10:08:23 +00:00
Mike Barcroft
0497c9b478 Remove the now unused NTOHL() family of macros. 2002-02-28 09:59:00 +00:00
Mike Barcroft
27aba6a42a Change two occurrences of HTONS() to use htons(). 2002-02-28 09:56:31 +00:00
Benno Rice
3301d20ad9 GC an unused variable in cpu_fork(). 2002-02-28 08:48:58 +00:00
Mark Murray
6764eb8e7b Warning fix. (Very basic - add the right include so that rdtsc() gets
a prototype).
2002-02-28 08:37:18 +00:00
Andrew R. Reiter
216ae18217 - Fix panic() message and a couple style nits that snuck in from the
recent diagnostics commit (rev. 1.84).
2002-02-28 08:28:14 +00:00
Andrew R. Reiter
d330a9760f - trap -> trap() in panic() string.
- Translate the message into some sort of understandable english.
- Fix a couple near-by style nits.

Submitted by: bde
2002-02-28 08:13:55 +00:00
Andrew R. Reiter
279efddedd - Style(9) makeover.
Reviewed by: chris, mike
2002-02-28 08:01:49 +00:00
Mike Silbersack
f4e18c9afd Fix a minor swap leak.
Previously, the UPAGES/KSTACK area of processes/threads would leak memory
at the time that a previously swapped process was terminated.  Lukcily, the
leak was only 12K/proc, so it was unlikely to be a major problem unless you
had an undersized swap partition.

Submitted by:	dillon
Reviewed by:	silby
MFC after:	1 week
2002-02-28 07:41:12 +00:00
Bosko Milekic
71acb2477f Make MPLOCKED work again in asm files and stringify it explicitly
where necessary.

Reviewed by: jake
2002-02-28 06:17:05 +00:00
Benno Rice
4eed0cf1be Make fork work, at least for kthreads. Switching still has some issues. 2002-02-28 03:24:07 +00:00
Peter Wemm
183439a14a Quiet bogus gcc warning 2002-02-28 03:15:53 +00:00
Benno Rice
b7ac845009 - Rearrange the sequence of events in powerpc_init() somewhat.
- Catch another instance of PSL_EE being cleared without PSL_RI.
2002-02-28 03:15:49 +00:00
Peter Wemm
9d69d7b867 Tag istallion.c with nowerror (third party) 2002-02-28 03:14:37 +00:00
Peter Wemm
4945f5ec47 Fix warning (const lost in assignment), harmless in this case. 2002-02-28 03:13:47 +00:00
Peter Wemm
f24d9c32a0 Fix warnings (prototype for nonexisting static function) 2002-02-28 03:12:00 +00:00
Benno Rice
3c854532b0 - When enabling/disabling interrupts, set/clear both PSL_EE and PSL_RI, not
just PSL_EE.
- Make cpu_critical_enter/exit independant of save_intr/restore_intr.
2002-02-28 03:07:48 +00:00
Peter Wemm
85a745c15e Fix warnings.. bootpc_init() and related. 2002-02-28 03:07:35 +00:00
Benno Rice
9a7fefa51e Add a missing (. 2002-02-28 03:04:33 +00:00
Peter Wemm
1dec39afe0 Fix warnings 2002-02-28 03:02:20 +00:00
Peter Wemm
d5362546cf Fix warnings 2002-02-28 02:56:29 +00:00
Benno Rice
88afb2a31b Implement the following functions:
- pmap_remove
	- pmap_kremove
	- pmap_qremove
2002-02-28 02:54:16 +00:00
Benno Rice
54eb8bbc14 Remove most of the usage of critical_enter/exit.
I put these in to match the use of spl*() in the NetBSD code I was basing this
on, but it appears to cause problems.

I'm doing this in a separate commit so as to be able to refer back if locking
becomes an issue at a later stage.
2002-02-28 02:45:10 +00:00
Peter Wemm
71e166afe3 Fix another boatload of warnings (missing include) and a cosmetic
-Wuninitialized warning.
2002-02-28 00:14:04 +00:00
Peter Wemm
777b9faaa4 Fix warnings. 2002-02-28 00:09:17 +00:00
Peter Wemm
e51c24920f Fix debug printf formats 2002-02-28 00:06:59 +00:00
Peter Wemm
d62e201b7b Fix some unused warnings. One function is only used if
TWE_SHUTDOWN_NOTIFICATION is defined, the other two are never used.
2002-02-27 23:59:35 +00:00
Peter Wemm
98d0a7f844 Fix warnings (comment out unused tables that are taking space in the
kernel)
2002-02-27 23:57:18 +00:00
Peter Wemm
654694bf54 Tag if_ie.c, isp.c and isp_pci.c as nowerror (qualifier problems, and third
party code)
2002-02-27 23:55:42 +00:00
Peter Wemm
e542f1d7b7 Fix warnings 2002-02-27 23:53:02 +00:00
Peter Wemm
f7afd87572 Fix warnings. The driver would be more useful with a DRIVER_MODULE()
entry so that it actually can do something.
2002-02-27 23:47:45 +00:00
Peter Wemm
10d3660bd2 Repair some warnings. These are accessing idle portions of shared memory
buffers.
2002-02-27 23:43:19 +00:00
Warner Losh
e84e28dee1 Remove support for FreeBSD 2.x from this driver. 2002-02-27 23:34:02 +00:00
Peter Wemm
b4925b6514 Fix warning (unused variable)
Submitted by:	LINT, -Werror
2002-02-27 23:32:45 +00:00
Peter Wemm
c538dbe04d Mark a few more broken pci drivers as nowerror. 2002-02-27 23:30:33 +00:00
Peter Wemm
cd23fe0f58 Fix warning (passing wrong arg to arp_ifinit())
Submitted by:	LINT, -Werror
2002-02-27 23:28:57 +00:00
Peter Wemm
da0d93cfc3 Mark stallion.c as nowerror (known broken, this is a #warning) 2002-02-27 23:23:54 +00:00
Peter Wemm
6aea67779a Fix format warning.
Submitted by:	LINT, -Werror
2002-02-27 23:21:46 +00:00
John Baldwin
62da23f1e2 Back out part of KSE/M2 that snuck in under the radar: changing the
prototype of bzero() on the i386 to have a volatile first argument.

Requested by:	bde, jake
2002-02-27 22:12:29 +00:00
Julian Elischer
497a90b418 Unbreak fore adapters from POV of warnings.
Define the atm_dev_free() routine so that its OK to free stuff that is defined
as volatile. Note this doesn't FORCE the arguemnts to be volatile,
just says that it's not an error if it is..
2002-02-27 21:12:44 +00:00
Warner Losh
0cf3c909d8 Remove now unused struct proc *p.
Approved by: jhb
2002-02-27 20:57:57 +00:00
Andrew R. Reiter
4d59dcc5b6 - Insert a space in the panic() string in order more clearly show the
message.
2002-02-27 20:20:42 +00:00
Julian Elischer
ca9d2dbac9 Add a comment explaining a code change.. 2002-02-27 19:24:55 +00:00
John Baldwin
fdcc1cc09f Use thread0.td_ucred instead of proc0.p_ucred. This change is cosmetic
and isn't strictly required.  However, it lowers the number of false
positives found when grep'ing the kernel sources for p_ucred to ensure
proper locking.
2002-02-27 19:18:10 +00:00
John Baldwin
bdd67d483c - Change namei() to use td_ucred instead of p_ucred.
- Change the hack in access() that uses a temporary credential to set
  td_ucred to the temp cred instead of p_ucred.
2002-02-27 19:15:29 +00:00
John Baldwin
6f105b3444 - Change unp_listen() to accept a thread rather than a proc as its second
argument.
- Use td_ucred in unp_listen() instead of p_ucred.
2002-02-27 19:14:01 +00:00
John Baldwin
4a7d6cd251 Fix Giant leakage in several error cases in __semctl(). 2002-02-27 19:12:14 +00:00
John Baldwin
6bd7ad69a1 Add a comment about an unlocked access to p_ucred that will go away in
the near future.
2002-02-27 19:10:50 +00:00
John Baldwin
7807397242 Use td_ucred and thus remove now unneeded proc lock acquire and release. 2002-02-27 19:09:30 +00:00
Alfred Perlstein
9f01374de5 kill __P. 2002-02-27 18:51:53 +00:00
Alfred Perlstein
566c1313a3 add assertions in the places where giant is required to catch when
the pipe is locked and shouldn't be.

initialize pipe->pipe_mtxp to NULL when creating pipes in order not
to trip the above assertions.

swap pipe lock with giant around calls to pipe_destroy_write_buffer()

pipe_destroy_write_buffer issue noticed by: jhb
2002-02-27 18:49:58 +00:00
John Baldwin
a854ed9893 Simple p_ucred -> td_ucred changes to start using the per-thread ucred
reference.
2002-02-27 18:32:23 +00:00
John Baldwin
65e3406d28 Temporarily lock Giant while we update td_ucred. The proc lock doesn't
fully protect p_ucred yet so Giant is needed until all the p_ucred
locking is done.  This is the original reason td_ucred was not used
immediately after its addition.  Unfortunately, not using td_ucred is
not enough to avoid problems.  Since p_ucred could be stale, we could
actually be dereferencing a stale pointer to dink with the refcount, so
we really need Giant to avoid foot-shooting.  This allows td_ucred to
be safely used as well.
2002-02-27 18:30:01 +00:00
Mike Silbersack
7f3a40933b Fix a horribly suboptimal algorithm in the vm_daemon.
In order to determine what to page out, the vm_daemon checks
reference bits on all pages belonging to all processes.  Unfortunately,
the algorithm used reacted badly with shared pages; each shared page
would be checked once per process sharing it; this caused an O(N^2)
growth of tlb invalidations.  The algorithm has been changed so that
each page will be checked only 16 times.

Prior to this change, a fork/sleepbomb of 1300 processes could cause
the vm_daemon to take over 60 seconds to complete, effectively
freezing the system for that time period.  With this change
in place, the vm_daemon completes in less than a second.  Any system
with hundreds of processes sharing pages should benefit from this change.

Note that the vm_daemon is only run when the system is under extreme
memory pressure.  It is likely that many people with loaded systems saw
no symptoms of this problem until they reached the point where swapping
began.

Special thanks go to dillon, peter, and Chuck Cranor, who helped me
get up to speed with vm internals.

PR:		33542, 20393
Reviewed by:	dillon
MFC after:	1 week
2002-02-27 18:03:02 +00:00
Thomas Moestl
2081ddd6d9 Add gem and hme. 2002-02-27 17:46:04 +00:00
Thomas Moestl
42c1b001f7 Add a driver for the Sun GEM (Gigabit) and ERI (100 Mb/s) PCI ethernet
adaptors, ported from NetBSD.
2002-02-27 17:41:06 +00:00
Thomas Moestl
52381bfae4 Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard
in most machines of the Sun Ultra series. This is a port of the NetBSD
driver which I enhanced to make use of the gather functionality and the
configurable RX buffer offset to avoid copying all received/sent packet
(instead, packets will be directly DMAd from mbuf chains and into mbuf
clusters now).
2002-02-27 17:35:48 +00:00
Alfred Perlstein
21dbcfd500 Fix a NULL deref panic in pipe_write, we can't blindly lock
pipe->pipe_peer->pipe_mtxp because it may be NULL, so lock the
passed in pipe's mutex instead.
2002-02-27 17:23:16 +00:00
Thomas Moestl
90ce56c287 Add the following functions/macros to support byte order conversions and
device drivers for bus system with other endinesses than the CPU (using
interfaces compatible to NetBSD):

- bwap16() and bswap32(). These have optimized implementations on some
  architectures; for those that don't, there exist generic implementations.
- macros to convert from a certain byte order to host byte order and vice
  versa, using a naming scheme like le16toh(), htole16().
  These are implemented using the bswap functions.
- stream bus space access functions, which do not perform a byte order
  conversion (while the normal access functions would if the bus endianess
  differs from the CPU endianess).

htons(), htonl(), ntohs() and ntohl() are implemented using the new
functions above for kernel usage. None of the above interfaces is currently
exported to user land.

Make use of the new functions in a few places where local implementations
of the same functionality existed.

Reviewed by:	mike, bde
Tested on alpha by:	mike
2002-02-27 17:16:18 +00:00
Robert Drehmel
51aa959f05 Use the updated getcredhostname() function. 2002-02-27 16:55:30 +00:00
Robert Drehmel
668ae58863 Use the updated getcredhostname() function. 2002-02-27 16:47:27 +00:00
Robert Drehmel
ad1ff0997e Make getcredhostname() take a buffer and the buffer's size
as arguments.  The correct hostname is copied into the buffer
while having the prison's lock acquired in a jailed process'
case.

Reviewed by:	jhb, rwatson
2002-02-27 16:43:20 +00:00
Robert Drehmel
9fdb8219fa - Use the new getcredhostname function in xenix_utsname(),
ibcs2_getipdomainname(), and ibcs2_utssys().

Reviewed by:	phk
2002-02-27 15:23:01 +00:00
Robert Drehmel
cb83438de4 - Use the new getcredhostname function in the SVR4 uname system call.
- Remove spurious empty line.

Reviewed by:	phk
2002-02-27 15:12:56 +00:00
Robert Drehmel
5597f0ccf2 Use the getcredhostname function to fill the hostname into
the linux_newuname_args structure.  This should fix the case
of jailed linux processes not using the jail's hostname.

PR:		35336
Reviewed by:	phk
2002-02-27 15:06:33 +00:00
Robert Drehmel
9484d0c0e8 Add a function which returns the correct hostname for a given
credential.

Reviewed by:	phk
2002-02-27 14:58:32 +00:00
Crist J. Clark
93ec91ba6d Change the wording of the inline comments from the previous commit.
Objection from:	ru
2002-02-27 13:52:06 +00:00
Alfred Perlstein
ffddaaeeeb MPsafe fixes:
use SYSINIT to initialize pipe_zone.
use PIPE_LOCK to protect kevent ops.
2002-02-27 11:27:48 +00:00
Seigo Tanimura
2f9325870d Return ESRCH if the target process is not inferior to the curproc.
Spotted by:	HIROSHI OOTA <oota@LSi.nec.co.jp>
2002-02-27 10:38:14 +00:00
Alfred Perlstein
e6be967434 Don't hardcode /sys when making tags, instead use ${.CURDIR}/.. this
fixes a problem where one tries to make tags when the source isn't in
/sys.

Submitted by: Jihui Yang <yangjihui@yahoo.com>
2002-02-27 10:07:15 +00:00
Peter Wemm
30d1ca27fe Re-fix a pointer/integer warning. 2002-02-27 09:58:06 +00:00
Peter Wemm
d1693e1701 Back out all the pmap related stuff I've touched over the last few days.
There is some unresolved badness that has been eluding me, particularly
affecting uniprocessor kernels.  Turning off PG_G helped (which is a bad
sign) but didn't solve it entirely.  Userland programs still crashed.
2002-02-27 09:51:33 +00:00
Julian Elischer
13b33111fe Fix warnings that have become fatal
1/ conditionalise (#if 0) function that is not used.
 Unused code left in place for netBSD compatibility.
2/ Recode loop to convince gcc that it does initialise a variable
 (use do-while instead of for() so gcc knows that we always go through
 at least once.  Feel free to check my logic.
2002-02-27 09:16:00 +00:00
Julian Elischer
561dac2175 turn on the ethertype filter module 2002-02-27 08:54:13 +00:00
Gary Jennejohn
ffa4ab673b Remove a redundant decalaration of call_desc[] since it's now a
fatal error.
2002-02-27 08:33:08 +00:00
Alfred Perlstein
f81b04d96c First rev at making pipe(2) pipe's MPsafe.
Both ends of the pipe share a pool_mutex, this makes allocation
and deadlock avoidance easy.

Remove some un-needed FILE_LOCK ops while I'm here.

There are some issues wrt to select and the f{s,g}etown code that
we'll have to deal with, I think we may also need to move the calls
to vfs_timestamp outside of the sections covered by PIPE_LOCK.
2002-02-27 07:35:59 +00:00
Jake Burkholder
df38f87be1 Minimal testing has shown that a 4 page tsb is a nice sweet spot for current
work loads.  It tapers off after that as gcc's working set generally just fits.

compiling bin/csh:

TSB_PAGES = 2
	213.33 real        77.59 user       110.01 sys
TSB_PAGES = 4
	116.43 real        75.78 user        19.16 sys
TSB_PAGES = 8
	119.27 real        76.38 user        18.12 sys

Testing by:	tmm
2002-02-27 06:18:02 +00:00
Jake Burkholder
95a44511f3 Parameterize the number of pages to allocate for the per-cpu area on
PCPU_PAGES.
2002-02-27 06:08:13 +00:00
Jake Burkholder
62ad058292 Make cpu_identify take the value of the ver register and cpuid as arguments
so we can print nice things about non-current cpus.
2002-02-27 06:05:50 +00:00
Peter Wemm
5c004dc68e Bandaid for the Uniprocessor kernel exploding. This makes a UP kernel
boot and run (and indeed I am committing from it) instead of exploding
during the int 0x15 call from inside the atkbd driver to get the keyboard
repeat rates.
2002-02-27 06:05:24 +00:00
Alfred Perlstein
60d9b32e44 More IPV6 const fixes. 2002-02-27 05:11:50 +00:00
Warner Losh
7ba175ac23 Use the pci.c code wherever possible, rather than copying all the pci
code into cardbus and s/pci/cardbus.  This exposes a few pci_*
functions that are now static.

This work is similar to work Justin posted to the mobile list about a
year or two ago, which I have neglected since then.

This is a subset of his current work with the multiple inheritance
newbus architecutre.  When completed, that will eliminate the need for
pci/pci_private.h.

Similar work is needed for the cardbus_cis and pccard_cis code as well.
2002-02-27 05:09:14 +00:00
Dima Dorfman
76183f3453 Introduce a version field to `struct xucred' in place of one of the
spares (the size of the field was changed from u_short to u_int to
reflect what it really ends up being).  Accordingly, change users of
xucred to set and check this field as appropriate.  In the kernel,
this is being done inside the new cru2x() routine which takes a
`struct ucred' and fills out a `struct xucred' according to the
former.  This also has the pleasant sideaffect of removing some
duplicate code.

Reviewed by:	rwatson
2002-02-27 04:45:37 +00:00
Alfred Perlstein
b7eeb587f6 clarify panic message 2002-02-27 04:27:36 +00:00
Alfred Perlstein
c4c0c592f0 Fix warnings caused by discarding const.
Hairy Eyeball At: peter
2002-02-27 02:44:45 +00:00
Julian Elischer
3ffc8ab1ac Remove errors in LINT (now that they are fatal) 2002-02-27 02:21:43 +00:00
Peter Wemm
bd1e3a0f89 Jake further reduced IPI shootdowns on sparc64 in loops by using ranged
shootdowns in a couple of key places.  Do the same for i386.  This also
hides some physical addresses from higher levels and has it use the
generic vm_page_t's instead.  This will help for PAE down the road.

Obtained from:	jake (MI code, suggestions for MD part)
2002-02-27 02:14:58 +00:00
Daniel O'Callaghan
3c3c45471c Remove problematic PHY_WRITE so that autoneg to 10 Mbps
actually works.

Submitted by: Dennis <TD790@aol.com>
Reviewed by:	Bill Paul <wpaul@freebsd.org>
MFC after:	7 days
2002-02-27 02:11:34 +00:00
Alfred Perlstein
012b7109b9 remove trailing semi-colons from macro definitions. 2002-02-27 02:02:13 +00:00
Matthew Dillon
9f34c41601 didn't quite undo the last reversion. This gets it. 2002-02-27 01:48:17 +00:00
Jake Burkholder
ad414cb452 Minor cleanup. 2002-02-27 00:31:31 +00:00
Jake Burkholder
d689965cb4 Wrap long lines. 2002-02-27 00:28:35 +00:00
Jake Burkholder
9d16662aa3 Use pcpu.pc_cpumask instead of computing 1 << cpuid. 2002-02-27 00:27:05 +00:00
Jake Burkholder
5d60dc233a Add a macro for shift of an integer (1 << shift == sizeof). Move the pointer
define to live alongside it.  For kicks assert at compile time that they are
correct.  Use these instead of magic numbers.
2002-02-27 00:21:04 +00:00
Jake Burkholder
7a8ee66881 Wrap long lines. 2002-02-27 00:03:01 +00:00
Julian Elischer
bc9f367b48 remove "discards qualifier" erro by not potentially writing to
a const *.
2002-02-26 23:38:34 +00:00
David E. O'Brien
db3442f54d Define basic macros required by GDB. 2002-02-26 21:49:46 +00:00
Matthew Dillon
08b38b1ff7 revert compatibility fix temporarily (thought it would not break anything
leaving it in).
2002-02-26 20:34:52 +00:00
Matthew Dillon
181df8c9d4 revert last commit temporarily due to whining on the lists. 2002-02-26 20:33:41 +00:00
Brooks Davis
6f4ded3a73 Fix warnings in the gif(4) driver so it compiles with -Werror. 2002-02-26 20:11:33 +00:00
Brooks Davis
240b1323c3 Set ifp->if_name to "awi" instead of device_get_name(dev) to avoid
casting away a const qualifier so the awi driver compiles.
2002-02-26 20:09:19 +00:00
Mike Barcroft
834dcade30 Rather than include namespace pollution in <grp.h> in order to declare
`gid_t', use the canonical protection scheme to define a type in two or
more headers.  This brings <grp.h> closer to POSIX.1-2001 conformance.
2002-02-26 19:43:03 +00:00
Brooks Davis
673623b376 Staticize an extern that no one else used. 2002-02-26 18:24:00 +00:00
Matthew Dillon
24e68cb0bc Make peter's commit compatible with interrupt-enabled critical_enter()
and exit(), which has already solved the problem in regards to deadlocked
IPI's.
2002-02-26 18:08:54 +00:00
Brooks Davis
521393ea56 Add a missing field to the end of array marker in the pci_ids array.
Submitted by:	sumikawa
2002-02-26 17:35:21 +00:00
Matthew Dillon
b13de3b84f Did someone turn on -Werror or something?
Fix kernel breakage.
2002-02-26 17:11:37 +00:00
Jake Burkholder
c7f9e1fdbf Apparently gcc3.1 is now using deprcated v8 instructions in v9 code
due to them being faster in certain cases.  Therefore we need to save
and restore the v8 %y register around traps in kernel mode as well as
traps in usermode.

Tested by:	obrien, tmm
2002-02-26 17:09:24 +00:00
Matthew Dillon
f96ad4c223 STAGE-1 of 3 commit - allow (but do not require) interrupts to remain
enabled in critical sections and streamline critical_enter() and
critical_exit().

This commit allows an architecture to leave interrupts enabled inside
critical sections if it so wishes.  Architectures that do not wish to do
this are not effected by this change.

This commit implements the feature for the I386 architecture and provides
a sysctl, debug.critical_mode, which defaults to 1 (use the feature).  For
now you can turn the sysctl on and off at any time in order to test the
architectural changes or track down bugs.

This commit is just the first stage.  Some areas of the code, specifically
the MACHINE_CRITICAL_ENTER #ifdef'd code, is strictly temporary and will
be cleaned up in the STAGE-2 commit when the critical_*() functions are
moved entirely into MD files.

The following changes have been made:

	* critical_enter() and critical_exit() for I386 now simply increment
	  and decrement curthread->td_critnest.  They no longer disable
	  hard interrupts.  When critical_exit() decrements the counter to
	  0 it effectively calls a routine to deal with whatever interrupts
	  were deferred during the time the code was operating in a critical
	  section.

	  Other architectures are unaffected.

	* fork_exit() has been conditionalized to remove MD assumptions for
	  the new code.  Old code will still use the old MD assumptions
	  in regards to hard interrupt disablement.  In STAGE-2 this will
	  be turned into a subroutine call into MD code rather then hardcoded
	  in MI code.

	  The new code places the burden of entering the critical section
	  in the trampoline code where it belongs.

	* I386: interrupts are now enabled while we are in a critical section.
	  The interrupt vector code has been adjusted to deal with the fact.
	  If it detects that we are in a critical section it currently defers
	  the interrupt by adding the appropriate bit to an interrupt mask.

	* In order to accomplish the deferral, icu_lock is required.  This
	  is i386-specific.  Thus icu_lock can only be obtained by mainline
	  i386 code while interrupts are hard disabled.  This change has been
	  made.

	* Because interrupts may or may not be hard disabled during a
	  context switch, cpu_switch() can no longer simply assume that
	  PSL_I will be in a consistent state.  Therefore, it now saves and
	  restores eflags.

	* FAST INTERRUPT PROVISION.  Fast interrupts are currently deferred.
	  The intention is to eventually allow them to operate either while
	  we are in a critical section or, if we are able to restrict the
	  use of sched_lock, while we are not holding the sched_lock.

	* ICU and APIC vector assembly for I386 cleaned up.  The ICU code
	  has been cleaned up to match the APIC code in regards to format
	  and macro availability.  Additionally, the code has been adjusted
	  to deal with deferred interrupts.

	* Deferred interrupts use a per-cpu boolean int_pending, and
	  masks ipending, spending, and fpending.  Being per-cpu variables
	  it is not currently necessary to lock; bus cycles modifying them.

	  Note that the same mechanism will enable preemption to be
	  incorporated as a true software interrupt without having to
	  further hack up the critical nesting code.

	* Note: the old critical_enter() code in kern/kern_switch.c is
	  currently #ifdef to be compatible with both the old and new
	  methodology.  In STAGE-2 it will be moved entirely to MD code.

Performance issues:

	One of the purposes of this commit is to enhance critical section
	performance, specifically to greatly reduce bus overhead to allow
	the critical section code to be used to protect per-cpu caches.
	These caches, such as Jeff's slab allocator work, can potentially
	operate very quickly making the effective savings of the new
	critical section code's performance very significant.

	The second purpose of this commit is to allow architectures to
	enable certain interrupts while in a critical section.  Specifically,
	the intention is to eventually allow certain FAST interrupts to
	operate rather then defer.

	The third purpose of this commit is to begin to clean up the
	critical_enter()/critical_exit()/cpu_critical_enter()/
	cpu_critical_exit() API which currently has serious cross pollution
	in MI code (in fork_exit() and ast() for example).

	The fourth purpose of this commit is to provide a framework that
	allows kernel-preempting software interrupts to be implemented
	cleanly.  This is currently used for two forward interrupts in I386.
	Other architectures will have the choice of using this infrastructure
	or building the functionality directly into critical_enter()/
	critical_exit().

	Finally, this commit is designed to greatly improve the flexibility
	of various architectures to manage critical section handling,
	software interrupts, preemption, and other highly integrated
	architecture-specific details.
2002-02-26 17:06:21 +00:00
Bruce Evans
fbd7573929 Initialize a variable bogusly to avoid a gcc bug that causes a spurious
warning.
2002-02-26 17:04:29 +00:00
Hajimu UMEMOTO
e8647cfc81 off by one error in Aaron Gifford's code. KAME PR 393.
PR:		kern/34242
Submitted by:	Aaron D. Gifford <agifford@infowest.com>
MFC after:	1 week
2002-02-26 16:58:58 +00:00
Bruce Evans
ffe4d2f7c7 Fixed 3 regressions in rev.1.99 (clobbering of the English fix in rev.1.98,
and 2 unformattings).
2002-02-26 16:17:45 +00:00
Søren Schmidt
ed57cfc480 Hide "bla bla exists, skipping it" behind bootverbose. 2002-02-26 10:38:33 +00:00
Robert Drehmel
4d79812a7c - Fix indentation and return statements to conform to style(9).
- Use the __FBSDID macro.
 - Fix some warnings.

Submitted by:	obrien (partly)
2002-02-26 10:05:20 +00:00
Josef Karthauser
dae0af0c83 Revert part of the last commit. A couple of defines were removed
by NetBSD because they don't use them (they've no usbd), but we do.
2002-02-26 10:00:32 +00:00
Benno Rice
4b1211c7cc Add makeoptions NO_WERROR=true so that we can build. =) 2002-02-26 09:55:17 +00:00
Poul-Henning Kamp
c91f7a7332 Cast the variable, not the constant to 64 bits. 2002-02-26 09:27:39 +00:00
Poul-Henning Kamp
0f5c7c4b1c Fix warning in !SMP case.
Submitted by:	 Maxime Henrion <mux@mu.org>
2002-02-26 09:21:52 +00:00
Poul-Henning Kamp
1634e90817 Remove unused variable. 2002-02-26 09:16:27 +00:00
Mike Barcroft
be2adb3b6c Hide GCCisms in the non-GCC case. 2002-02-26 07:44:03 +00:00
Jake Burkholder
de3fee8992 Convert pmap.pm_context to an array of contexts indexed by cpuid. This
doesn't make sense for SMP right now, but it is a means to an end.
2002-02-26 06:57:30 +00:00
Jake Burkholder
200e6309c9 Pu back a call to pmap_context_destroy which was accidentily removed
in the previous commit.

Spotted by:	tmm
2002-02-26 06:39:38 +00:00
Doug Ambrisko
c9977aaadf In ad-hoc mode, the "associate" bit is valid to check to see if it is
part of an ad-hoc network.  This means another station needs to be
around so they can both associate.

MFC after:	1 week
2002-02-26 05:43:05 +00:00
Warner Losh
476f923056 Until I can figure out how to live without the volatile qualifier on
comdefaultrate, comment out the support for machdep.conspeed for now.
2002-02-26 03:46:14 +00:00
Warner Losh
375b025257 Remove an unused variable. 2002-02-26 03:37:35 +00:00
Warner Losh
1efefb2d4d Fix warnings introduced in the PCI_ALLOW_UNSUPPORTED_IO_RANGE case. 2002-02-26 03:31:35 +00:00
Warner Losh
47f9536259 If we're going to ifdef out the only reference to asr_drvinit, then
go ahead and ifdef out the function too.
2002-02-26 03:22:44 +00:00
Warner Losh
96fc5a062e Add an experimental tunable: machdep.conspeed.
# I'm not sure where to document this.
2002-02-26 03:13:30 +00:00
Warner Losh
0375947168 minor style(9) fix: return (foo); The file was mostly style(9) before. 2002-02-26 03:00:19 +00:00
Jake Burkholder
6e5f3d0f0f Allow the user tsb to span multiple pages. Make the default 2 pages for now
until we do some testing to see what's best.  This gives a massive reduction
in system time for processes with a relatively large working set.  The size
of the tsb directly affects the rss size that a user process can keep mapped.
When it starts to get full replacements occur and the process takes a lot of
soft vm faults.  Increasing the default from 1 page to 2 gives the following
before and after numbers for compiling vfs_bio.c:

before:
       14.27 real         6.56 user         5.69 sys
after:
        8.57 real         6.11 user         1.62 sys

This should make self hosted builds more tolerable.
2002-02-26 02:37:43 +00:00
Brooks Davis
7a46ec8f63 When using hardware decoding, reconstruct the wire form of the ethernet
header and push it up any attached bpf devices on the parent interface.
This makes hardware vlan decoding more like the normal software path.

Tested by:	cjtt@employees.org
MFC after:	2 weeks
2002-02-26 02:19:33 +00:00
Chris D. Faulhaber
546f251b29 Enforce inbound IPsec SPD
Reviewed by:	fenner
2002-02-26 02:11:13 +00:00
Brooks Davis
872f786a75 Make gif(4) nesting level and parallel tunnel support tunable at runtime
via sysctl's.  The old #defines, MAX_GIF_NEST and XBONEHACK are
currently supported for backwards compatability, but will probably be
removed at some point in the future.
2002-02-26 01:56:56 +00:00
Alfred Perlstein
6f65a2bd46 in ulpt_reset() req.bmRequestType was unitialized, fix it. 2002-02-26 01:19:56 +00:00
Josef Karthauser
648b06a6ed Merge from NetBSD:
usb.h (rev 1.61):

    date: 2002/01/01 14:23:37;  author: augustss;
    Add a missing subclass definition.

usb.h (rev 1.63) and usb_port.h (rev 1.52):

    date: 2002/02/25 00:46:37;  author: augustss;
    Some portability improvement.
    Add define for usb.h version.
2002-02-26 01:15:08 +00:00
Peter Wemm
c0933269c3 Fix a warning by pulling prototype for arp_ifinit() into scope.
Then fix cast the correct value into an incorrect value, which was not
detected due to the missing prototype (but was harmless anyway).
2002-02-26 01:11:08 +00:00
Peter Wemm
0574a5a746 Fix warning; amdsmb_abort() is not used. 2002-02-26 01:04:58 +00:00
Peter Wemm
e2256f43ed Fix warning. s/microuptime()/binuptime()/ for switchtime initial value. 2002-02-26 01:03:39 +00:00
Peter Wemm
dd50331c0e Remove unused variable (td) 2002-02-26 01:01:37 +00:00
Peter Wemm
a1f7f9fec8 Fix a warning. useracc() should take a const pointer argument. 2002-02-26 01:00:39 +00:00
Peter Wemm
bd47bef5aa Fix a warning. Do not assume pointer == long. 2002-02-26 00:55:27 +00:00
Peter Wemm
6bd95d70db Work-in-progress commit syncing up pmap cleanups that I have been working
on for a while:
- fine grained TLB shootdown for SMP on i386
- ranged TLB shootdowns.. eg: specify a range of pages to shoot down with
  a single IPI, since the IPI is very expensive.  Adjust some callers
  that used to trigger this inside tight loops to do a ranged shootdown
  at the end instead.
- PG_G support for SMP on i386 (options ENABLE_PG_G)
- defer PG_G activation till after we decide what we are going to do with
  PSE and the 4MB pages at the start of the kernel.  This should solve
  some rumored strangeness about stale PG_G entries getting stuck
  underneath the 4MB pages.
- add some instrumentation for the fine TLB shootdown
- convert some asm instruction wrappers from functions to inlines.  gcc
  seems to do a fair bit better with this.
- [temporarily!] pessimize the tlb shootdown IPI handlers.  I will fix
  this again shortly.

This has been working fairly well for me for a while, but I have tweaked
it again prior to commit since my last major testing round.  The only
outstanding problem that I know of is PG_G related, which is why there
is an option for it (not on by default for SMP).  I have seen a world
speedups by a few percent (as much as 4 or 5% in one case) but I have
*not* accurately measured this - I am a bit sceptical of these numbers.
2002-02-25 23:49:51 +00:00
Jake Burkholder
07d99740b6 Remove code to lock the user tsb into the tlb. We can handle faults on it
now, as we do for normal wired kernel memory.
2002-02-25 22:58:41 +00:00
David E. O'Brien
65955377e3 I was able to boot this kernel using the latest WIP kernel sources.
I don't believe anyone is quite using the sparc64 kernel sources in CVS
yet -- things aren't just quite ready (but almost).  So this commit should
be OK to make.
2002-02-25 22:13:44 +00:00
Peter Wemm
2faccca61a Turn on -Werror by default. This is is easily turned off, by either:
- fix the warnings, they are there for a reason!
- add -DNO_ERROR to your make(1) command.
- add 'makeoptions NO_WERROR=true' to your kernel config.
- add 'nowerror' to conf/files* that have warnings that should be fixed
  due to tracking 3rd party vendor code.
- add 'nowerror' to conf/files* where the warning is false due to a
  compiler bug and fixing it with brute force would be too expensive.

There are some very sloppy warnings in our kernel build, come on folks!

'make release' uses -DNO_WERROR intentionally.
2002-02-25 22:04:33 +00:00
Peter Wemm
46bbc8f2bb Add 'nowerror' to the vendor acpica code that spews out warnings. 2002-02-25 21:54:06 +00:00
Peter Wemm
963131fe0a Tidy up some warnings 2002-02-25 21:42:23 +00:00