Commit Graph

6114 Commits

Author SHA1 Message Date
Joerg Wunsch
3f0aecd3b5 Fix two minor oddities introduced by my yesterday's patches:
. preserve a multi-char sequence in a small static buffer inside
  pccngetc(), so it won't be clobbered later (used to happen when
  breaking into DDB user Ctrl-Alt-ESC), and

. simplify the ``keystroke is present'' determination in sgetc(), thus
  making pccncheck() actually working without waiting for a keystroke.
1996-08-12 21:31:07 +00:00
Garrett Wollman
9f0a4b33d9 Back out mistaken local change that sneaked in on the last commit. 1996-08-12 20:03:16 +00:00
Garrett Wollman
0b5b0f16a9 Don't declare the user_ldt functions unless USER_LDT is defined.
Eliminates an obnoxious warning.
1996-08-12 19:57:10 +00:00
Andrey A. Chernov
79deb12410 Convert to newly aded collate compare function 1996-08-12 18:49:54 +00:00
Peter Wemm
08424dfaa3 Extend the poll code so that it can periodically scan the host cards
for work regardless of whether there was an interrupt.  This needs more
work, it should be able to run better when there are more than 3 host
cards present, ie: all cards in polling-only mode with no IRQ.  (The
host cards have a choice of 3 irq's, 11, 12, or 15, or just polling)
1996-08-12 17:12:07 +00:00
Peter Wemm
bbd42ad0e5 Add two more portrange sysctls, which control the area of the below
IPPORT_RESERVED that is used for selection when bind() is told to allocate
a reserved port.

Also, implement simple sanity checking for all the addresses set, to make
it a little harder for a user/sysadmin to shoot themselves in the feet.
1996-08-12 14:05:54 +00:00
Andrey A. Chernov
36a00a4b79 Use collate for alpha character ranges 1996-08-12 04:03:50 +00:00
Bill Paul
89e85b2828 Apply my small patch to make detection of ATAPI CD-ROMs happen a
little more reliably. So far I've received a couple of positive
responses and no objections to these changes.

There are two one-line changes:

- In wdprobe(), when testing the error status of drives, don't
  unconditionally decide that there is no controller present if we
  read back a value of 0x81 (drive 0 okay, drive 1 failed) twice
  in a row. This may be caused by having an ATAPI CD-ROM jumpered
  as a master on the controller with no slave.

- In wdgetctlr(), when checking for a status of WDCS_READY, check the
  value twice. The first time may be bogus. This stops a phantom wd2
  device from being detected when an ATAPI CD-ROM is attached to the
  secondary controller alone as a slave. (This can cause installation to
  fail when sysinstall attempts to open the phantom device and wedges the
  system as a result. This has bitten me a couple of times on some
  Gateway 2000 machines.)
1996-08-12 00:53:02 +00:00
David Greenman
11282a57ce Add support for i686 machine check trap. 1996-08-11 17:41:25 +00:00
David Greenman
150022d8fc Defined T_MCHK exception for i686; renumbered T_RESERVED to 29. 1996-08-11 17:29:39 +00:00
Joerg Wunsch
fae988778b Fix many long-standing bugs and problems with pcvt, namely:
. make pccncheck() work even when interrupts are disabled, so the
  ``Press a key on the console...'' procedure will work,
. make kernel colors #ifndef, so they can be overridden from the
  config file,
. use shutdown_nice() instead of cpu_reset() if Ctrl-Alt-Del is
  enabled,
. allow pccngetc() to return more than a single character, so the
  arrow keys will work (and thus visual UserConfig!),
. fix a warning.

This closes all know PRs related to pcvt, in particular #845, #1236,
and #1265.  PR #991 is a duplicate for 845, and PR #1283 has already
been fixed earlier in rev 1.11 of pcvt_conf.h.

Submitted by:	Ulf Kieber (kieber@sax.de), for the kernel color fix
1996-08-10 22:14:36 +00:00
Joerg Wunsch
b458c95f75 Teach UserConfig about ANSI (DEC?) ``application mode'' arrow key
sequences (ESC O A, as opposed to ESC [ A).
1996-08-10 22:06:09 +00:00
Joerg Wunsch
b463077353 Finally implement a simple commandline history in DDB.
Emacs-style line editing has already been there (did anybody ever
notice this? :), so i `only' had to add ^P and ^N.  The approach is
fairly minimalistic, with the advantage of keeping the bloat as small
as 864 bytes of .text and 16 bytes of .bss, plus 10*120 bytes
malloc'ed history buffer at the first use.
1996-08-10 13:38:44 +00:00
Peter Wemm
7c34c352e3 Add recognition for the AMD 5x86 CPU models.
Submitted by: A JOSEPH KOSHY <koshy@india.hp.com>
1996-08-10 08:04:24 +00:00
Peter Wemm
b05a2d987d Trivial cosmetic tweak to make the i[56]86 CPU MHz reprting round to the
nearest .01 Mhz rather than simply truncating it downwards.

This hack makes this 89.999928 Mhz clock correctly round to the closer
90.00-MHz rather than 89.99-MHz:
  > i586 clock: 89999928 Hz, i8254 clock: 1193152 Hz
  > CPU: Pentium (90.00-MHz 586-class CPU)
1996-08-10 06:35:35 +00:00
Julian Elischer
a1153b1a69 Submitted by: archie@whistle.com
allow a tunnel interface to be openned even if it has no remote address yet.
this may be needed if you have used
route add default -interface tun0
where the remote end might not even HAVE a number (e.g. netcom links)
1996-08-09 22:57:06 +00:00
David Greenman
aea6ddfd4f This diff adds support for the HP PC Lan+ cards (model numbers: 27247B
and 27252A) in FreeBSD's `ed' driver.

Submitted by:	A JOSEPH KOSHY <koshy@india.hp.com>
1996-08-07 11:18:23 +00:00
Julian Elischer
381dd1d2ca Submitted by: archie@whistle.com
This is a patch to sys/net/if.c. What it does is patch the algorithm
for finding an IP address on an interface which most closely matches
a given IP address. The problem with it is when no address matches,
and you have to just pick one at random. Then the code ends up picking
the last IP address in the list. This patch changes things so it
picks up the first address instead.
Usually the first address is more useful as the later ones are aliases.
1996-08-07 04:09:05 +00:00
Poul-Henning Kamp
26a8b0bf7e Megacommit to straigthen out ETHER_ mess.
I'm pretty convinced after looking at this that the majority of our
drivers are confused about the in/exclusion of ETHER_CRC_LEN :-(
1996-08-06 21:14:36 +00:00
Poul-Henning Kamp
590dbfbf6a Use ether_ioctl() to do a lot of grunt work. 1996-08-06 21:09:25 +00:00
Nate Williams
d0dc9fdb98 Fix memory leak bug in the path parsing code which never released it's
buffer in certain error conditions.  Sync up the code to that in NetBSD
where applicable.

Reviewed by:	Gary Jennejohn <garyj@munich.netsurf.de>
Submitted by:	Michael Smith <msmith@atrad.adelaide.edu.au>
Obtained from:	NetBSD sources
1996-08-05 20:52:30 +00:00
Stefan Eßer
d8a8289c5a Send out a period of "0" if negotiating asynchronous transfers (offset = 0).
A value of "255" used to be sent, and though it should not matter, there
appear to be a few devices that want both values to be zero for asynch.
1996-08-05 19:39:51 +00:00
Poul-Henning Kamp
88e1602b1f use <net/ethernet.h> 1996-08-05 14:03:10 +00:00
Poul-Henning Kamp
e4b54c028f This file is the (intended) definitive source of the ETHER_ macros. 1996-08-05 14:02:38 +00:00
Alexander Langer
71c011477f Filter by IP protocol.
Submitted by: fenner (with modifications by me)

Use a common prefix string for all warning messages generated during
ip_fw_ctl.
1996-08-05 02:35:04 +00:00
Wolfram Schneider
7b2dfbf801 Create FreeBSD copyright (c comment) for OS version 1996-08-04 22:34:23 +00:00
Poul-Henning Kamp
d1c4c866f0 Add separate kmalloc classes for BIO buffers and Ktrace info. 1996-08-04 20:13:08 +00:00
Poul-Henning Kamp
ca67a4e456 The check for multiple freed items were bogus. fixed. 1996-08-04 20:08:48 +00:00
Poul-Henning Kamp
218e61c915 Remove a spurious message. 1996-08-04 20:04:57 +00:00
Poul-Henning Kamp
c2069b2c84 Reduce reset timeout. "only" 16 seconds (!) for a 512K board. 1996-08-04 20:04:11 +00:00
Poul-Henning Kamp
86101139cf Make the NS and IPX cases compile again. 1996-08-04 11:45:37 +00:00
Poul-Henning Kamp
78a5a8f486 Update driver.
Obtained from: NetBSD
1996-08-04 10:58:17 +00:00
Poul-Henning Kamp
ab2460e4a6 Replace about 60 lines of code with a call to ether_ioctl().
This can be done for most of our ethernet drivers.
1996-08-04 10:57:29 +00:00
Poul-Henning Kamp
30106f6a8c Add a callback pointer to the interfaces "init" routine.
Add ether_ioctl() which can take care of the SIOC[SG]IFADDR cases for
most (ethernet) drivers.
1996-08-04 10:54:13 +00:00
Peter Wemm
78ee1461b7 make si.c compile in kernels without COMPAT_43. 1996-08-03 00:21:44 +00:00
Bruce Evans
70e53371c4 Eliminated i586_ctr_rate. Use i586_ctr_freq instead. 1996-08-02 21:16:27 +00:00
Bruce Evans
d9927d1118 Eliminated i586_ctr_rate. Use i586_ctr_freq instead.
Changed i586_ctr_bias from long long to u_int.  Only the low 32 bits
are used now that microtime uses a multiplication to do the scaling.
Previously the high 32 bits had to match those of rdtsc() to prevent
overflow traps and invalid timeval adjustments.
1996-08-02 21:16:13 +00:00
Bruce Evans
41ae0562ed Reduced division by i586_ctr_rate to multiplication by i586_ctr_multiplier. 1996-08-02 20:17:50 +00:00
Peter Wemm
614d1d0b5b dscheck() was returning without setting bp->b_error when given a negative
block number.. (assuming Debugger() returned).  The disk drivers assume
that dscheck() sets both error markers (bp->b_error and set B_ERROR in
bp->b_flags) if it fails.
1996-08-02 06:14:25 +00:00
Peter Wemm
2176b02c56 The sd and od drivers didn't check for negative block numbers (like wd.c
does) before calling dscheck().  dscheck() doesn't appreciate this and
calls Debugger() and returns without setting bp->b_error.

This can happen when there is a casting error and offsets > 2G are
converted to negative off_t's in the disk tools.  (dumpfs used to do this).
1996-08-02 06:10:49 +00:00
Nate Williams
992eae3421 When I hit [Ctrl]+8, appeared 9 instead of 8. It may not be critical but
surprised me. ;-)

Submitted by:	tacha@tera.fukui-med.ac.jp <Tatoku Ogaito>
Obtained from:	NetBSD/GNATS
1996-08-01 22:38:30 +00:00
Poul-Henning Kamp
5e9ed9c990 Write protect the text segment of gzip'ed programs.
Various other cleanups by phk.

Reviewed by:	phk
Submitted by:	Igor Khasilev <igor@jabber.paco.odessa.ua>
1996-08-01 22:00:14 +00:00
Garrett Wollman
a2970ccbcf Declare fls() for the non-inline case. Defer writing the generic version
until it actually matters.
1996-08-01 20:31:45 +00:00
Garrett Wollman
13f588f83e Add an fls() inline function which does the opposite operation to
ffs().  (That is to say, it searches in the opposite direction.)
1996-08-01 20:29:28 +00:00
Bruce Evans
85acc6887d Eliminated pcb_inl. It was always 0 because context switches don't occur
in interrupt handlers.
1996-07-31 12:36:11 +00:00
David Greenman
4f898e1524 Changed wakeup_one() to continue looping, possibly waking up additional
processes, until it finds one that is not swapped out.

Submitted by:	dyson
1996-07-31 10:35:47 +00:00
David Greenman
b1508c72f4 Converted timer/run queues to 4.4BSD queue style. Removed old and unused
sleep(). Implemented wakeup_one() which may be used in the future to combat
the "thundering herd" problem for some special cases.

Reviewed by:	dyson
1996-07-31 09:26:54 +00:00
Bruce Evans
3817d2ffa1 Fixed longstanding bug of not checking dumpdev' or setting dumplo'
early enough when the dump device is specified in the config file.

Removed stale comment about configuration root and swap devices.

Don't bother clearing dumplo when dumpdev is set to NODEV.  Everything
is controlled by dumpdev.

Fixed the kern.dumpdev sysctl.  Writes were handle bogusly.
1996-07-30 20:30:49 +00:00
Bruce Evans
98a51b2b94 Synced with sio.c: added support for TIOCDCDTIMESTAMP and simplified
timestamp code.
1996-07-30 19:50:37 +00:00
Bruce Evans
33ded19fc2 Fixed the machdep.i8254_freq and machdep.i586_freq sysctls. Writes were
handled bogusly.

Centralized the setting of all the frequency variables.  Set these
variables atomically.  Some new ones aren't used yet.
1996-07-30 19:26:55 +00:00
Garrett Wollman
bbd17bf8e1 Add better support for retrieving management information from network
interfaces.  This creates two new tables in the net.link.generic branch
of the MIB; one contains (essentially) `ifdata' structures, and the other
contains a blob provided by the interface (and presumably used to
implement link-layer-specific MIB variables).  A number of things
have been moved around in the `ifnet' and `ifdata' structures, so
NEW VERSIONS OF ifconfig(8) AND routed(8) ARE REQUIRED.  (A simple
recompile is all that's necessary.)

I have a sample program which uses this interface for those interested
in making use of it.
1996-07-30 19:17:07 +00:00
Satoshi Asami
edd84a267a Another round of merge.
Submitted by:	The FreeBSD(98) Development Team
1996-07-30 18:56:16 +00:00
Bruce Evans
8c2ff39670 Only use the special bdevvp() for DEVFS if DEVFS_ROOT is defined. This
makes option DEVFS safe to use again (although mounting devfs is unsafe).
1996-07-30 18:00:32 +00:00
Bruce Evans
f5e9e8ec43 Fixed resource usage integrals. They were too large by a factor of
of profhz/stathz when profiling was enabled.
1996-07-30 16:59:22 +00:00
Andrey A. Chernov
58db4b5a8f Fix GIO_ATTR ioctl return to match SYSV 1996-07-30 15:20:08 +00:00
John Dyson
67bf686897 Backed out the recent changes/enhancements to the VM code. The
problem with the 'shell scripts' was found, but there was a 'strange'
problem found with a 486 laptop that we could not find.  This commit
backs the code back to 25-jul, and will be re-entered after the snapshot
in smaller (more easily tested) chunks.
1996-07-30 03:08:57 +00:00
John Dyson
78d4346178 Fix a problem with a DEBUG section of code. 1996-07-29 14:22:46 +00:00
John Dyson
b7fb357273 Fix an error in statement order in pmap_remove_pages, remove the pmap
pte hint (for now), and general code cleanup.
1996-07-29 03:08:51 +00:00
John Dyson
da54aa7fc4 Fix a problem that pmap update was not being done for kernel_pmap. Also
remove some (currently) gratuitious tests for PG_V...  This bug could
have caused various anomolous (temporary) behavior.
1996-07-28 20:31:27 +00:00
Andrey A. Chernov
6a1ae88452 bzero reserved field into directory entry, junk here cause
scandisk error under Win95
1996-07-28 07:58:55 +00:00
David Greenman
0f281c28fa Slight performance tweak for previous commit. 1996-07-28 02:54:09 +00:00
John Dyson
f230c45cbe Undo part of the scalability commit. Many of the changes
in vm_fault had some performance enhancements not ready
for prime time.  This commit backs out some of the changes.
1996-07-28 01:14:01 +00:00
John Dyson
3c087a2f30 Modify slightly the output from the map file in /proc. Now the
executable bit is shown.
1996-07-27 19:47:04 +00:00
John Dyson
adef72483b Move a couple of the initialization commands to the right place. Multi
sector mode was not getting re-initialized when needed.
1996-07-27 19:01:10 +00:00
John Dyson
9ed7fc75ff Modification to vfs_cluster to allow clustering of NFS delayed writes.
Submitted by:	Doug Rabson <dfr@render.com>
1996-07-27 18:49:18 +00:00
John Dyson
34e95a26ec Under certain circumstances, reading the /proc/*/map file can
crash the system.  Nonexistant objects were not handled correctly.
1996-07-27 18:28:10 +00:00
John Dyson
bf6dfc7b35 Allow sequentially created mmap'ed anonymous regions to coalesce. There
is little or no reason to create a swap pager for small mmap's.  The
vm_map_insert code will automatically create a swap pager if the object
becomes too large.  This fix, per a request from phk.
1996-07-27 17:21:41 +00:00
Atsushi Murai
826702b23d Under the heavy load for transmiting condition, it will be write error
and then never accept for sending packet from upper layer anymore
(i.e. ping -f )
Reviewed by:	David Greenman <dg@root.com>
Submitted by:	amurai@spec.co.jp
1996-07-27 12:40:31 +00:00
John Dyson
3b297e93b8 Clean up some lint. 1996-07-27 04:22:12 +00:00
John Dyson
feb32a8fa9 Remove experimental header file. My test-build must have picked it
up in an unexpected place.
Submitted by:	jkh
1996-07-27 04:06:11 +00:00
John Dyson
29387b7bb6 Remove a totally unneeded (and as of the last VM commit, incorrect) call
to pmap_clear_modify.
1996-07-27 03:50:31 +00:00
John Dyson
819c1c6f43 Missing (prototype) change from the previous commit. 1996-07-27 03:47:35 +00:00
John Dyson
4f4d35edf0 This commit is meant to solve a couple of VM system problems or
performance issues.

	1) The pmap module has had too many inlines, and so the
	   object file is simply bigger than it needs to be.
	   Some common code is also merged into subroutines.
	2) Removal of some *evil* PHYS_TO_VM_PAGE macro calls.
	   Unfortunately, a few have needed to be added also.
	   The removal caused the need for more vm_page_lookups.
	   I added lookup hints to minimize the need for the
	   page table lookup operations.
	3) Removal of some bogus performance improvements, that
	   mostly made the code more complex (tracking individual
	   page table page updates unnecessarily).  Those improvements
	   actually hurt 386 processors perf (not that people who
	   worry about perf use 386 processors anymore :-)).
	4) Changed pv queue manipulations/structures to be TAILQ's.
	5) The pv queue code has had some performance problems since
	   day one.  Some significant scalability issues are resolved
	   by threading the pv entries from the pmap AND the physical
	   address instead of just the physical address.  This makes
	   certain pmap operations run much faster.  This does
	   not affect most micro-benchmarks, but should help loaded system
	   performance *significantly*.  DG helped and came up with most
	   of the solution for this one.
	6) Most if not all pmap bit operations follow the pattern:
		pmap_test_bit();
		pmap_clear_bit();
	   That made for twice the necessary pv list traversal.   The
	   pmap interface now supports only pmap_tc_bit type operations:
	   pmap_[test/clear]_modified, pmap_[test/clear]_referenced.
	   Additionally, the modified routine now takes a vm_page_t arg
	   instead of a phys address.  This eliminates a PHYS_TO_VM_PAGE
	   operation.
	7) Several rewrites of routines that contain redundant code to
	   use common routines, so that there is a greater likelihood of
	   keeping the cache footprint smaller.
1996-07-27 03:24:10 +00:00
Peter Wemm
66b8e416e6 ttysleep() can return EWOULDBLOCK, not ETIMEDOUT as the comment in tty.c
suggests.

Pointed out by: bde
1996-07-26 16:55:37 +00:00
Peter Wemm
446fe15067 Apply a bandaid to a problem elsewhere in the driver, when the process is
blocked in a write() while waiting for the output to drain, sleep only
for tp->t_timeout, not forever.  This only seems to happen when there is
either a modem lockup holding the hardware flow control down, or due to
some problem in the driver with processes attempting to write after the
modem has hung up (eg: elm, tf).
1996-07-26 13:47:38 +00:00
Garrett Wollman
949f380f38 Rename KERN_DOMAINNAME to KERN_NISDOMAINNAME so that it can't be confused
with a real Domain Name.

Suggested by: Keith Bostic
1996-07-25 18:02:40 +00:00
Satoshi Asami
34f3521636 Fail when odd number of disks are specified with mirror flag. Memory
leak fixes.  Miscellaneous cleanup.

Partially submitted by:	Matt White <mwhite+@CMU.EDU>
1996-07-24 23:45:24 +00:00
Poul-Henning Kamp
c74bb98638 DEVFS needs a special bdevvp().
I just noticed some junk in my patch.  I'll remove that in a sec.
1996-07-24 21:22:36 +00:00
Poul-Henning Kamp
e83cf165d6 DEVFS needs a special bdevvp(). 1996-07-24 21:21:43 +00:00
Garrett Wollman
fcd6781acb Fix a bug in ifa_ifwithnet() which caused a page fault in bcmp()
when attepmting to add certain types of routes.  This problem
only manifested itself in the presence of unconfigured point-to-point
interfaces.

Noticed by: Chuck Cranor <chuck@maria.wustl.edu>
1996-07-24 19:59:53 +00:00
Garrett Wollman
5e2d069649 Eliminate some more references to separate ip_v and ip_hl fields. 1996-07-24 18:46:19 +00:00
Poul-Henning Kamp
fe1624a4ff Revert my bdevsw change for wcd.c, Bruce pointed out that
this driver has bogus open/close entries.
1996-07-24 13:35:34 +00:00
Julian Elischer
e56dd1bb4f Submitted by: archie@whistle.com
slight cleanups on yesterday's patches
1996-07-23 22:00:14 +00:00
Poul-Henning Kamp
cba8a5ddd3 Make a "DWIM" function for adding [bc]devsw entries for bdev drivers.
Saves about 280 butes of source per driver, 56 bytes in object size
and another 56 bytes moves from data to bss.

No functional change intended nor expected.

GENERIC should be about one k smaller now :-)
1996-07-23 21:52:43 +00:00
Garrett Wollman
f12c3c93de Fix a spelling error I forgot to bring over from my personal version
of the last (IF_ENQ_DROP) commit.
1996-07-23 14:44:46 +00:00
Satoshi Asami
92b4f2e0df Update to current state of PC98 world.
Submitted by:	The FreeBSD(98) development team
1996-07-23 07:46:59 +00:00
Julian Elischer
3a67d2bc37 Submitted by: archie@whistle.com
appletalk cleanups
1996-07-23 01:18:47 +00:00
Garrett Wollman
6f86639187 Add a new, better mechanism for sticking packets onto ifqueues.
The old system had the misfeature that the only policy it could implement
was tail-drop; the new IF_ENQ_DROP macro/function makes it possible
to implement more sophisticated queueing policies on a system-wide
basis.  No code actually uses this yet (although on my machine
I have converted the ethernet and (polled) loopback to use it).
1996-07-22 20:06:01 +00:00
Peter Wemm
9481c477f0 Don't dereference sc->sc_setmtu if it's NULL (such as when it's not running)
as discussed on current. (bde pointed out the cause of the problem)

Reported by: dev@fgate.flevel.co.uk
1996-07-21 17:14:06 +00:00
Poul-Henning Kamp
7c60604ada Add yet another kludge to this driver. Man page update to follow. 1996-07-21 09:28:50 +00:00
Poul-Henning Kamp
10bc064c3a Substitute raw{read|write} for ccd{read|write} 1996-07-21 09:28:03 +00:00
Joerg Wunsch
3135240845 Post-commit review by Bruce. Mostly stylistic changes.
Submitted by:	bde
1996-07-21 08:20:51 +00:00
Joerg Wunsch
5eb14f7e7c Replace the annoying calls to Debugger() by panic()'s in the
#ifdef DIAGNOSTIC case, and a warning only otherwise.

People who want them to break into the debugger can always set the
breakpoint explicitly.  The existing behaviour was a misfeature from
the beginning, in the (wrong) assumption that the SCSI controller must
always be of essential importance to the entire system.
1996-07-20 22:02:44 +00:00
Joerg Wunsch
f4de22acc7 Correct the timer2 acquiration and release, it must happen at splclock.
Also slightly reformatted so that it meets at least partially style(9),
and makes navigating through the functions easier.
1996-07-20 18:48:54 +00:00
Joerg Wunsch
99211adf2c Major cleanup of the timerX_{acquire,release} stuff. In particular,
make it more intelligible, improve the partially bogus locking, and
allow for a ``quick re-acquiration'' from a pending release of timer 0
that happened ``recently'', so it was not processed yet by clkintr().
This latter modification now finally allows to play XBoing over
pcaudio without losing sounds or getting complaints. ;-)  (XBoing
opens/writes/closes the sound device all over the day.)

Correct locking for sysbeep().

Extensively (:-) reviewed by:	bde
1996-07-20 18:47:23 +00:00
Alexander Langer
c616bf2a71 Removed extraneous return. 1996-07-20 00:16:20 +00:00
Stefan Eßer
76af5a923c Last night (local time :) I accidently checked in an intermediate version
of this patch, which had not actually been reviewed by Joerg or Paul!
(I'll better stop committing files after midnight ...)

I'm now commiting the latest code, which has been reported to work.

Minor correction to the previous commit message for this file:
The first PCI Lance in a system will get a name of lnc1, the second
will be known as lnc2 and so on. An arbitrary number of cards is
supported in a system ...
1996-07-19 17:18:20 +00:00
Atsushi Murai
0ed091876d Add interrupt register set up with original register value
before attaching. Without this fix, 3c579(EISA) never make
any H/W inturrupt.
Reviewed by:	"Justin T. Gibbs" <gibbs@freefall.freebsd.org>, nao@sbl.cl.nec.co.jp and owner-current on mailing list ;-)
Submitted by:	amurai@spec.co.jp, nao@sbl.cl.nec.co.jp
1996-07-19 13:20:05 +00:00
Stefan Eßer
c268c94f6b FINALLY: PCI support for the Lance Ethernet driver.
This code applies to several systems with integrated Ethernet
chip, for example from HP or Compaq. It should also support
PCI Ethernet cards based on the AMD PCI Lance chip.

This code has been reviewed (visually) by Paul Richards and
tested (using an ISA Lance board) by Joerg Wunsch.
Since the parameters to nearly each and every single function
had to be changed (generally from unit number to lnc_soft*),
there is some potential for buglets having crept in ...

BEWARE: If you had lnc0 configured to have the ISA probe find
your PCI Lance, then it should now be found by the PCI probe,
and should be automatically configured as pci1 (!!! note the "1").

Reviewed by:	paul, joerg
1996-07-18 22:03:47 +00:00
Julian Elischer
75d050aeaa some internal modems need LOTS of time to generate an interrupt
on demand.. increase DELAY from 1000 uS to 10000uS
1996-07-17 22:07:23 +00:00
Joerg Wunsch
cb9bf21103 Introduce two /dev/audio compat alias names for flushing and draining
the pcaudio device.  Now, XBoing sounds much better...
1996-07-17 20:18:56 +00:00
Bruce Evans
65d98215ea Fixed adjustment of `time' when timer0 is released. 27465 was 27645 in
a comment and in code that was only used when pcaudio was closed.  The
maximum error was 66 usec.
1996-07-17 11:26:05 +00:00
Doug Rabson
09c6884729 Various fixes from frank@fwi.uva.nl (Frank van der Linden) via
rick@snowhite.cis.uoguelph.ca:

1. Clear B_NEEDCOMMIT in nfs_write to make sure that dirty data is
correctly send to the server.  If a buffer was dirtied when it was in
the B_DELWRI+B_NEEDCOMMIT state, the state of the buffer was left
unchanged and when the buffer was later cleaned, just a commit rpc was
made to the server to complete the previous write.  Clearing
B_NEEDCOMMIT ensures that another write is made to the server.

2. If a server returned a server (for whatever reason) returned an
answer to a write RPC that implied that fewer bytes than requested
were written, bad things would happen.

3. The setattr operation passed on the atime in stead of the mtime to
the server. The fix is trivial.

4. XIDs always started at 0, but this caused some servers (older DEC
OSF/1 3.0 so I've been told) who had very long-lasting XID caches to
get confused if, after a reboot of a BSD client, RPCs came in with a
XID that had in the past been used before from that client. Patch is
to use the current time in seconds as a starting point for XIDs. The
patch below is not perfect, because it requires the root fs to be
mounted first. This is because of the check BSD systems do, comparing
FS time to system time.

Reviewed by:	Bruce Evans, Terry Lambert.
Obtained from:  frank@fwi.uva.nl (Frank van der Linden) via rick@snowhite.cis.uoguelph.ca
1996-07-16 10:19:45 +00:00
Nate Williams
20073b6d10 Moved declaration of zbuf outside of #ifdef DEVFS code. 1996-07-15 18:22:07 +00:00
Bruce Evans
6450111c1b Quick fix for previous commit: don't free zbuf on close since it may be
in use in another process that blocked in uiomove().
1996-07-15 05:23:04 +00:00
Alexander Langer
889fe95791 Switch back to logging accepted packets with the text "Allow" instead
of "Accept"
1996-07-14 21:12:52 +00:00
Joerg Wunsch
6bc025e10d Turn SCSIDEBUG into a new-style option. 1996-07-14 10:46:56 +00:00
John Dyson
f381a0c010 Almost gratuitious improvement of the performance of reading
/dev/zero.
1996-07-14 06:05:53 +00:00
John Dyson
d1a5be1064 A few minor mods (improvements) to support more efficient pipe
operations for large transfers.  There are essentially no differences
for small transfers, but big transfers should perform about 20%
better.
1996-07-13 22:52:50 +00:00
David Greenman
4611b39710 Enable transmit complete interrupt...
(author's explaination):

 Bit 15 is the flag to request a transmit complete interrupt.  The
driver was apparently written to minimize interrupts, and if not for a
3-COM design quirk, everything would be just ducky.
 Prior to loading the outbound packet into the FIFO, the driver checks
to see if there's enough space to contain the packet.  If not, the
driver requests a transmit-available interrupt when there is
sufficient room.  Unfortunately, the card is continuing to process the
prior FIFO, and by the time the driver sets the threshold for a
transmit available interrupt, the space is already available.  When
this occurs, the 3COM card ignores the interrupt request, and the
driver is hung waiting for an interrupt that will never occur.
There's probably a more elegant solution, but requesting the transmit
complete interrupt was the easiest to implement.  An alternative fix
might be to check free FIFO space again, after requesting the transmit
available interrupt, but I haven't bothered pursuing this.  Since the
patch, my 3C590 (PCI, same FIFO interface as 3C509) has been rock
solid.

Submitted by:	mevans@candle.com (Mike Evans)
1996-07-13 10:49:53 +00:00
Jordan K. Hubbard
51295a4d3e General -Wall warning cleanup, part I.
Submitted-By: Kent Vander Velden <graphix@iastate.edu>
1996-07-12 18:57:58 +00:00
David Greenman
af7a299930 Fixed two bugs in previous commit: be sure to include tcp_debug.h when
TCPDEBUG is defined, and fix typo in TCPDEBUG2() macro.
1996-07-12 17:28:47 +00:00
Bill Fenner
32bd8943f8 Fix braino in rev 1.30 fix; m_copy() the mbuf that has the header
pulled up already.  This bug can cause the first packet from a source
to a group to be corrupted when it is delivered to a process listening
on the mrouter.
1996-07-12 17:22:32 +00:00
Peter Wemm
260afbaa5d Bump RELDATE in -current to be greater than RELDATE in -stable (and hence
2.1.5-RELEASE).  This will obviously be set "for real" closer to the time.

(some ports use this to differentiate the two branches /dev/kmem kernel
architectures.  This exact same procedure happened in November last year
for the 2.1 RELEASE as well.)
1996-07-12 11:21:57 +00:00
Bruce Evans
3be8cc7800 Staticized some variables.
Fixed initialization of pipe_pgid - don't default to pid 0 (swapper) for
SIGIO.

Added comments about other implicit initializations, mostly for struct
stat.

Fixed initialization of st_mode.  S_IFSOCK was for when pipes were sockets.
It is probably safe to fix the bogus S_ISFIFO() now that pipes can be
distinguished from sockets in all cases.

Don't return ENOSYS for inappropriate ioctls.
1996-07-12 08:14:58 +00:00
Bruce Evans
0cd97b2034 Use a big delta in adjtime() for big negative adjustments as well as
for big positive adjustments.  The existence of big adjustments may
be a bug (it's not documented...) but there was no good reason for
the asymmetric behaviour.

Reviewed by:	wollman
1996-07-12 07:55:35 +00:00
Bruce Evans
cba2a7c614 Staticized a few variables.
Fixed warnings about unused variables.
1996-07-12 07:41:34 +00:00
Bruce Evans
73571d2d9e Removed "optimization" using gcc's builtin memcpy instead of bcopy.
There is little difference now since the amount copied is large,
and bcopy will become much faster on some machines.
1996-07-12 07:18:12 +00:00
Bruce Evans
82ffff7ab3 Renamed upa to p0upa to match p0upt.
Cleaned up some comments.
1996-07-12 06:48:55 +00:00
Bruce Evans
3222e6db68 Export `dumpmag' to utilities but not to the kernel.
Restored a truncated comment.
1996-07-12 06:09:49 +00:00
Bruce Evans
f3460ead96 Fixed cloned comments about npx traps to match context. 1996-07-12 06:03:14 +00:00
Bruce Evans
8d00dd680c Removed obsolete definition of PIPE_NBIO. 1996-07-12 05:44:30 +00:00
Bruce Evans
ec275eb27f Moved the definition of DEBUGMSG() from asm.h to start.S. This macro
is only appropriate to use in the special environment of start.S (real
mode plus some conventions about not saving registers), and asm.h is
supposed to be for generic macros.

Removed some unnecessary parentheses.
1996-07-12 05:42:02 +00:00
Bruce Evans
18f63e25c1 Moved the definition of `bsize' out of a DO_BAD144 ifdef so that this
compiles when DO_BAD144 is not defined.
1996-07-12 05:35:47 +00:00
Bruce Evans
1cc273db90 Moved the definition of dflt_name to the correct file (table.c is only for
explicitly initialized data) and made it conditional on NAMEBLOCK.
1996-07-12 05:25:47 +00:00
Bruce Evans
b830e63502 Fixed some speling, punctuation.. and spac ing errors. 1996-07-12 05:17:37 +00:00
Bruce Evans
0873c1f1c7 Fixed operand order for shld and shrd.
Finished the constant poisoning that was begun in rev.1.14.  Consts
aren't very poisonous (or useful) unless -Wcast-qual is in CFLAGS,
and it isn't in the default CFLAGS.
1996-07-12 04:40:21 +00:00
Bruce Evans
6ab46d52a5 Don't use NULL in non-pointer contexts. 1996-07-12 04:12:25 +00:00
Nate Williams
68753bffb7 Add some comments explaining what APM_DSVALUE_BUG does no that I know
what it does and why it's needed.  Now I have to figure out how to fix
the bug. :)

[ No functional changes ]
1996-07-11 16:35:12 +00:00
Garrett Wollman
2c37256e5a Modify the kernel to use the new pr_usrreqs interface rather than the old
pr_usrreq mechanism which was poorly designed and error-prone.  This
commit renames pr_usrreq to pr_ousrreq so that old code which depended on it
would break in an obvious manner.  This commit also implements the new
interface for TCP, although the old function is left as an example
(#ifdef'ed out).  This commit ALSO fixes a longstanding bug in the
TCP timer processing (introduced by davidg on 1995/04/12) which caused
timer processing on a TCB to always stop after a single timer had
expired (because it misinterpreted the return value from tcp_usrreq()
to indicate that the TCB had been deleted).  Finally, some code
related to polling has been deleted from if.c because it is not
relevant t -current and doesn't look at all like my current code.
1996-07-11 16:32:50 +00:00
Jordan K. Hubbard
0375cce8bc Merge. 1996-07-11 11:18:45 +00:00
Julian Elischer
93e0e11657 Adding changes to ipfw and the kernel to support ip packet diversion..
This stuff should not be too destructive if the IPDIVERT is not compiled in..
 be aware that this changes the size of the ip_fw struct
so ipfw needs to be recompiled to use it.. more changes coming to clean this up.
1996-07-10 19:44:30 +00:00
Nate Williams
6774cdb846 Whee. Fix two bugs which ended up cancelling each other out.
apm_setup.s was storing apm_cs16_base and apm_cs32_base addresses in
each others slots, and apm.c was reversing the result so the bugs
cancelled out, but the code looked wrong.

No functional differences unfortunately.

Submitted by:	dave edmondson <davided@sco.com>
1996-07-10 15:09:48 +00:00
Jordan K. Hubbard
9f5c1d518e Clean out some historical cruft. 1996-07-10 03:35:59 +00:00
Bill Fenner
1db1fffa03 Disallow host routes that point to themselves. These routes serve no
purpose, other than to get in the way of the ARP table and cause
"can't allocate llinfo" errors.

This change may cause gated or routed to start complaining when adding
such routes.  If so, these programs will need to be fixed to not try
to add these routes.

Reviewed by:	wollman
1996-07-10 01:34:36 +00:00
Nate Williams
bce2d3379e Functionality for IPFIREWALL_VERBOSE logging:
- State when we've reached the limit on a particular rule in the kernel logfile
- State when a rule or all rules have been zero'd.

This gives a log of all actions that occur w/regard to the firewall
occurances, and can explain why a particular break-in attempt might not
get logged due to the limit being reached.

Reviewed by:	alex
1996-07-09 20:49:38 +00:00
Garrett Wollman
1e4ad9ce28 This is a proposal-in-code for a substantial modification of the way
the high kernel calls into a protocol stack to perform requests on the
user's behalf.  We replace the pr_usrreq() entry in struct protosw with a
pointer to a structure containing pointers to functions which implement
the various reuqests; each function is declared with the correct type and
number of arguments.  (This is unlike the current scheme in which a quarter
of the requests take arguments of type other than (struct mbuf *) and the
difference is papered over with casts.)  There are a few benefits to this
new scheme:

1) Arguments are passed with their correct types, and null-pointer dummies
   are no longer necessary.

2) There should be slightly better caching effects from eliminating
   the prximity to extraneous code and th switch in pr_usrreq().

3) It becomes much easier to change the types of the arguments to something
   other than `struct mbuf *' (e.g.,pushing the work of sosend() into
   the protocol as advocated by Van Jacobson).

There is one principal drawback: existing protocol stacks need to
be modified.  This is alleviated by compatibility code in
uipc_socket2.c and uipc_domain.c which emulates the new interface
in terms of the old and vice versa.

This idea is not original to me.  I  read about what Jacobson did
in one of his papers and have tried to implement  the first steps
towards something like that here.  Much work remains to be done.
1996-07-09 19:12:53 +00:00
Andrey A. Chernov
3d1b21c689 Log not exited signal only, but the fact that core dumped (or not) too 1996-07-09 18:12:37 +00:00
Garrett Wollman
5c17ec631e Quiet a couple of -Wunused warnings. 1996-07-09 16:51:18 +00:00
Julian Elischer
c9f36013e5 make the NAMEBLOCK changes conditional on that preprocessor variable,
and add more documentation of the option in the Makefile
also CORRECT the variable mentioned in the README.
1996-07-09 02:28:20 +00:00
Garrett Wollman
b184bc75f3 Fix something that's been bugging me for a long time: move the CPU
type identification code out of machdep.c and into a new file of its
own.  Hopefully other grot can be moved out of machdep.c as well
(by other people) into more descriptively-named files.
1996-07-08 19:44:39 +00:00
John Dyson
502ba6e4a8 Back-off on the previous commit, specifically remove the look-ahead
optimization on the active queue scan.  I will do this correctly later.
1996-07-08 03:22:55 +00:00
John Dyson
c8c4b40cca Fix a problem with the pageout daemon RSS limiting, where it degrades
performance to LRU or worse when RSS limiting takes effect.  Also,
make an end condition in the active queue scan more efficient in the
case where pages are removed from the active queue as a side effect
of a pmap operation.
1996-07-08 02:25:53 +00:00
David Greenman
9579ee641a In all special cases for spl or page_alloc where kmem_map is check for,
mb_map (a submap of kmem_map) must also be checked.
Thanks to wcarchive (err...sort of) for demonstrating this bug.
1996-07-07 03:27:41 +00:00
Joerg Wunsch
960710e6ea Add the ability to specify bootflags. This is similar to boot_i386(8),
except for the root f/s options that don't seem to be useful.
1996-07-06 14:18:56 +00:00
Julian Elischer
9ed24653f7 Obtained from: Whistle Communications
Add code to the boot blocks to allow the user to place default boot strings
on block 1 of the disk (2nd block), should the correct magic numbers be present.

If the correct options are used it will 'delete' the name used from block1,
thereby assuring that if the boot fails it won't be stuck in an infinite loop.

the boot strings are set by the utility "nextboot"
(not yet checked in, but being tested.)
By default these changes should have no effect on existing installations
and if compiled without the NAMEBLOCK option should be essentially identical
to the old ones.
1996-07-05 19:55:05 +00:00
John Hay
d805b866fa This driver supports the SDL Communications RISCom/N2 ISA cards that is
based on the HD64570 chip. Both the 1 and 2 port cards is supported.

Line speeds of up to 2Mbps is possible. At this speed about 95% of the
bandwidth is usable with 486DX processors.

The standard FreeBSD sppp code is used for the link level layer. The
default protocol used is PPP. The Cisco HDLC protocol can be used by
adding "link2" to the ifconfig line in /etc/sysconfig or where ever
ifconfig is run.

At the moment only the X.21 interface is tested. The others may need
tweaks to the clock selection code.
1996-07-05 18:51:59 +00:00
John Dyson
c44013cde6 Get rid of PIPE_NBIO, cleaning up the code a bit.
Reviewed by:	bde
1996-07-04 04:36:56 +00:00
Poul-Henning Kamp
41e4eb70b4 Comment out rootdev & rrootdev so a ls -l doesn't panic the machine. 1996-07-03 03:48:46 +00:00
John Dyson
688bbd5b76 Implement locking for pfs nodes, when at the leaf. Concurrent access
to information from a single process causes hangs.  Specifically, this
fixes problems (hangs) with concurrent ps commands, when the system is under
heavy memory load.
Reviewed by:	davidg
1996-07-02 13:38:10 +00:00
John Dyson
a6e6bcc5f4 Properly set the PG_MAPPED and PG_WRITEABLE flags. This fixes some potential
problems with vm_map_remove/vm_map_delete.
1996-07-02 02:08:02 +00:00
John Dyson
c6c4b08e59 Fix a serious problem, with a window where an object lock is needed,
but not there.  The extent of the object lock is expanded to be over the
range that it is needed.  Additionally, clean up the code so that it conforms
to better coding style.
1996-07-02 01:40:52 +00:00
Bruce Evans
f6b4ae3c82 Added or restored #include of <machine/md_var.h>. Some declarations
moved from <machine/cpufunc.h> to better places.
1996-07-01 20:29:10 +00:00
Bruce Evans
7baccf64d3 Fixed lots of warnings about unportable casts of pointers to volatile
variables: don't depend on the compiler generating atomic code to set
the variables - use inline asm to specify the atomic instruction(s)
explicitly.
1996-07-01 20:16:10 +00:00
Bruce Evans
a111a7f827 Moved declarations of non-cpu things from <machine/cpufunc.h> to better
places.
1996-07-01 18:12:24 +00:00
Bruce Evans
d2700ee639 Use the standard timer (interrupt) frequency while calibrating the clocks.
Testing with the high frequency of 20000 Hz (to find problems) only found
the problem that this frequency is too high for slow i386's.

Disable interrupts while setting the timer frequency.  This was unnecessary
before rev.1.57 and forgotten in rev.1.57.  The critical (i8254) interrupts
are disabled in another way at boot time but not in the sysctl to change
the frequency.
1996-07-01 18:00:47 +00:00
Jordan K. Hubbard
68e00b9233 Fix the ordering dependency I broke. 1996-06-30 22:16:19 +00:00
John Dyson
877329e059 Make -current consistant with -stable regarding time that a process
sleeps before being swapped out.  The time is increased from 4 secs to
10 secs.  Originally I had decreased it from 20 to 4, but that is a bit
severe.  20 is too long though.
1996-06-30 21:16:18 +00:00
Joerg Wunsch
c683ac7c95 Enable ktrace by default, accompanied by a small reminder about the
implications (4 KB bloat, slight slowdown of syscalls).

Reviewed by:	freebsd-hackers
1996-06-30 09:39:29 +00:00
David Greenman
7c818168d5 Fixed a major bug that caused various pmap related panics, hangs, and reboots.
The i386 pmap module uses a special area of kernel virtual memory for mapping
of page tables pages when it needs to modify another process's virtual
address space. It's called the 'alternate page table map'. There is only one
of them and it's expected that only one process will be using it at once and
that the operation is atomic.
When the merged VM/buffer cache was implemented over a year ago, it became
necessary to rundown VM pages at I/O completion. The unfortunate and
unforeseen side effect of this is that pmap functions are now called at bio
interrupt time. If there happend to be a process using the alternate page
table map when this I/O completion occurred, it was possible for a different
process's address space to be switched into the alternate page table map -
leaving the current pmap process with the wrong address space mapped when
the interrupt completed. This resulted in BAD things happening like pages
being mapped or removed from the wrong address space, etc.. Since a very
common case of a process modifying another process's address space is during
fork when the kernel stack is inserted, one of the most common manifestations
of this bug was the kernel stack not being mapped properly, resulting in a
silent hang or reboot. This made it VERY difficult to troubleshoot this bug
(I've been trying to figure out the cause of this for >6 months). Fortunately,
the set of conditions that must be true before this problem occurs is
sufficiently rare enough that most people never saw the bug occur. As I/O
rates increase, however, so does the frequency of the crashes. This problem
used to kill wcarchive about every 10 days, but in more recent times when
the traffic exceeded >100GB/day, the machine could barely manage 6 hours of
uptime.
The fix is to make certain that no process has the pages mapped that are
involved in the I/O, before the I/O is started. The pages are made busy, so
no process will be able to map them, either, until the I/O has finished.
This side-steps the issue by still allowing the pmap functions to be called
at interrupt time, but also assuring that the alternate page table map won't
be switched.
Unfortunately, this appears to not be the only cause of this problem. :-(

Reviewed by:	dyson
1996-06-30 05:17:08 +00:00
Peter Wemm
dcca5a532d Fix typo that prevented the initial/lock state devices from working
correctly (accessing the lock device was not possible).
1996-06-30 04:56:05 +00:00
David Greenman
01155bd720 Make sure we have an object in the map entry before trying to trim pages
from it.
1996-06-29 09:17:17 +00:00
Alexander Langer
32fb6c089b Reject rules which try to mix ports with incompatible protocols. 1996-06-29 03:33:20 +00:00
Joerg Wunsch
a9e9062ca1 Bump various timeouts in scprobe(). This finally fixes the broken
keyboard reset one of my earlier commits has been causing.
1996-06-27 21:36:11 +00:00
Gary Palmer
2aba17b378 Correct comment relating to pty's. There can be 256 (probably
higher actually, but that's all our MAKEDEV supports at this time)
1996-06-26 19:42:06 +00:00
Søren Schmidt
da040b2280 Fixed bug in pasting 8bit char (ache).
Added linefeeds in cuts that extend beyond one line.
Prepared for the mousefunctions to be used in nontext modes.
1996-06-26 13:04:53 +00:00
John Dyson
4b83b27fea Fix a problem that caused system crashes after physio. This problem
was due to non-aligned 64K transfers taking 17 pages.  We currently
do not support >16 page transfers.  The transfer is unfortunately truncated,
but since buffers are usually malloced, this is a problem only once in
a while.  Savecore is a culprit, but tar/cpio usually aren't.  This
is NOT the final fix (which is likely a bouncing scheme), but will at
least keep the system from crashing.
1996-06-26 05:52:15 +00:00
John Dyson
38efa82b23 This commit does a couple of things:
Re-enables the RSS limiting, and the routine is now tail-recursive,
	making it much more safe (eliminates the possiblity of kernel stack
	overflow.) Also, the RSS limiting is a little more intelligent about
	finding the likely objects that are pushing the process over the limit.

	Added some sysctls that help with VM system tuning.

New sysctl features:
	1)	Enable/disable lru pageout algorithm.
		vm.pageout_algorithm = 0, default algorithm that works
			well, especially using X windows and heavy
			memory loading.  Can have adverse effects,
			sometimes slowing down program loading.

		vm.pageout_algorithm = 1, close to true LRU.  Works much
			better than clock, etc.  Does not work as well as
			the default algorithm in general.  Certain memory
			"malloc" type benchmarks work a little better with
			this setting.

		Please give me feedback on the performance results
		associated with these.

	2)	Enable/disable swapping.
		vm.swapping_enabled = 1, default.

		vm.swapping_enabled = 0, useful for cases where swapping
			degrades performance.

		The config option "NO_SWAPPING" is still operative, and
		takes precedence over the sysctl.  If "NO_SWAPPING" is
		specified, the sysctl still exists, but "vm.swapping_enabled"
		is hard-wired to "0".

Each of these can be changed "on the fly."
1996-06-26 05:39:27 +00:00
John Dyson
f43467241e When page table pages were removed from process address space, the
resident page stats were not being decremented.  This mode corrects
that problem.
1996-06-26 05:05:52 +00:00
Bruce Evans
c673fe98d7 Added #include of <machine/md_var.h>. This will be needed when
some declarations are moved from <machine/cpufunc.h> to better
places.
1996-06-25 20:31:01 +00:00
Bruce Evans
c11bd94104 Fixed the `machine' link. It pointed to the wrong place, and was created
too late to be used in all cases.  It should probably be created (early)
in bsd.kmod.mk for all LKMs.

Use cc instead of cpp | as for the same reasons as in the kernel makefile.
CFLAGS isn't split up as well as in the kernel makefile, but cc doesn't
pass compiler warning flags to cpp, so there is no need to split it.
1996-06-25 20:13:12 +00:00
Bruce Evans
79df6d8597 trap.c:
Fixed profiling of system times.  It was pre-4.4Lite and didn't support
statclocks.  System times were too small by a factor of 8.

Handle deferred profiling ticks the 4.4Lite way: use addupc_task() instead
of addupc().  Call addupc_task() directly instead of using the ADDUPC()
macro.

Removed vestigial support for PROFTIMER.

switch.s:
Removed addupc().

resourcevar.h:
Removed ADDUPC() and declarations of addupc().

cpu.h:
Updated a comment.  i386's never were tahoe's, and the deferred profiling
tick became (possibly) multiple ticks in 4.4Lite.

Obtained from:	mostly from NetBSD
1996-06-25 20:02:16 +00:00
Bruce Evans
93f4b1bf1b Save John Polstra's initial fix for profiling for reference. The
multiplication in addupc() overflowed for addresses >= 256K, assuming
the usual profil(2) scale parameter of 0x8000.  addupc() will go away
soon.

Submitted by:	John Polstra <jdp@polstra.com>
1996-06-25 19:25:25 +00:00
Søren Schmidt
ad0c0c784f Change the way moused talk to syscons, now its only delivering mouseevents
via an ioctl (MOUSE_ACTION).
Fixed a couple of bugs (destructive cursor, uncut, jitter).
Now applications can use the mouse via the MOUSE_MODE ioctl, its
possible to have a signal sent on mouseevents, makeing an event loop
in the application take over mouseevents.
1996-06-25 08:54:57 +00:00
David Greenman
b9355dedd9 Fixed end condition for clustered reads.
Submitted by:	Kirk McKusick via Lite-2 and email
1996-06-25 03:00:44 +00:00
John Dyson
cb87c9be58 Limit the scan for preloading pte's to the end of an object. 1996-06-25 00:39:21 +00:00
John Dyson
f0e2953e5e Fix some serious problems with limits checking in the sbrk(2)/brk(2)
code.
Reviewed by:	bde
1996-06-25 00:36:46 +00:00
Alexander Langer
830b0d3039 Allow fragment checking to work with specific protocols.
Reviewed by:	phk

Reject the addition of rules that will never match (for example,
1.2.3.4:255.255.255.0).  User level utilities specify the policy by either
masking the IP address for the user (as ipfw(8) does) or rejecting the
entry with an error.  In either case, the kernel should not modify chain
entries to make them work.
1996-06-25 00:22:20 +00:00
Gary Palmer
545f9f440b Remove another extraneous setting of if_lastchange 1996-06-24 21:56:39 +00:00
Justin T. Gibbs
6a2631bf25 Ensure that media protection is released before attempting to eject the
media in all cases.

Remove SCSI_2_MAX_DENSITY_CODE definition and rely on the device to tell
us if we attempt an invalid setting.

Closes PR 1245.

Submitted by:	fredriks@mcs.com a few changes by me.
1996-06-24 04:54:32 +00:00
John Dyson
a001376dc3 Remove RSS limiting until I rewrite the code to be non-recursive. The
code can overrun the kernel stack under very stressful conditions.
1996-06-24 04:30:24 +00:00
Jordan K. Hubbard
cd9a2f5c28 Bring in my changes for removing the pestilent obj links (unless you
really want them) from /usr/src.  This is the final version of the
patches, incorporating the feedback I've received from -current.
1996-06-24 04:26:21 +00:00
Justin T. Gibbs
356cbcce49 Fix problem with scb flag handing that crept in with the SCB paging support.
This only affected userland initiated device resets (using the reset command
from cdplay for instance).

Convert some spaces to tabs.
1996-06-23 20:02:37 +00:00
Andrey A. Chernov
e72a188ebc Oops, forget the fact that LINT compiles (fixing previos PAS commi) 1996-06-23 19:46:46 +00:00
Andrey A. Chernov
5839779af2 Describe the way how to add OPL for PAS without conflict 1996-06-23 19:41:34 +00:00
Bruce Evans
cc3d522683 Unstaticize psratio and staticize profprocs. psratio needs to be exported
to trap.c to fix user profiling.
1996-06-23 17:40:47 +00:00
Bruce Evans
8cd5acbce0 Don't truncate minor or major numbers in the nfsv3 client. 1996-06-23 17:19:25 +00:00
Bruce Evans
ea959743cb Moved declarations of static functions to the correct file. This fixes
hundreds of warnings from -Wunused in lkm/syscons/*.
1996-06-23 17:12:05 +00:00
Bruce Evans
6fe10f76c3 Removed unused #include. Linux doesn't support SCO consoles. 1996-06-23 17:08:11 +00:00
Bruce Evans
946a489fe1 Forward-declare a struct tag so that this doesn't depend on a side effect
of indirectly including <i386/isa/isa_device.h>.
1996-06-23 15:02:02 +00:00
Bruce Evans
488ed21e9f Don't add -I/sys to CFLAGS. bsd.kmod.mk adds the correct (relative)
path.
1996-06-23 14:58:14 +00:00
Bruce Evans
e0ddbefc46 Don't claim to be a VFS_LKM - generate vnode_if.h by putting it in SRCS.
Don't add -I/sys to CFLAGS.  bsd.kmod.mk adds the correct (relative)
path.
1996-06-23 14:56:04 +00:00
Bruce Evans
a7d87a6714 Don't (re)define ACTUALLY_LKM_NOT_KERNEL. It wasn't even used by the
joy driver proper.

Don't add -I/sys to CFLAGS.  bsd.kmod.mk adds the correct (relative)
path.
1996-06-23 14:52:20 +00:00
Bruce Evans
fb2604799e Finished converting ipfw to use opt_ipfw.h. 1996-06-23 14:43:55 +00:00
Bruce Evans
5c496ee31e Don't (re)define or use ACTUALLY_LKM_NOT_KERNEL - use the existing
definition of QCAM_MODULE for everything involving LKM'ness.

Makefile:
Don't add -I/sys to CFLAGS.  bsd.kmod.mk adds the correct (relative)
path.
1996-06-23 14:41:55 +00:00
Bruce Evans
7472e2e0f8 Use IPFIREWALL_MODULE instead of ACTUALLY_LKM_NOT_KERNEL to indicate
LKM'ness.  ACTUALLY_LKM_NOT_KERNEL is supposed to be so ugly that it
only gets used until <machine/conf.h> goes away.  bsd.kmod.mk should
define a better-named general macro for this.  Some places use
PSEUDO_LKM.  This is another bad name.

Makefile:
Added IPFIREWALL_VERBOSE_LIMIT option (commented out).
1996-06-23 14:28:02 +00:00
Bruce Evans
a24ed11695 Disabled unusable union lkm. 1996-06-23 13:31:20 +00:00
Bruce Evans
a675c0c67e Describe MAXMEM better. Enable it by default. (It's a positive option.
Only negative options in LINT should be enabled.)
1996-06-23 13:28:04 +00:00
Gary Palmer
0cf8755c9b Remove an un-necessary call to microtime() to set if_lastchange
as it is set in the call to if_down in the line above
1996-06-23 00:51:05 +00:00
Joerg Wunsch
06e958d471 Dump the timeout for st_erase().
Fixes PR # kern/1341: Bug fix for SCSI tape

Submitted by:	tundra@tundrware.com
1996-06-22 14:57:55 +00:00
Peter Wemm
51a109a174 Set the rmx.rmx_expire to 0 when creating fake ethernet addresses for the
broadcast and multicast routes, otherwise they will be expired by
arptimeout after a few minutes, reverting to " (incomplete)". This makes
the work done by rev 1.27 stay around until the route itself is deleted.
This is mainly cosmetic for 'arp' and 'netstat -r'.
1996-06-21 21:45:58 +00:00
Peter Wemm
17b944a6a7 When writing the settings for stop bits and output hardware flow control,
things tend to work better if you write the settings to the correct
register.. (*blush*).  This subtle bug has been haunting me for ages, and
will solve a few problems that have been reported to me.

Also, take a shot at fixing the serial BREAK processing, what was there
before never really worked.  (There is a PR on this I think)
1996-06-21 21:35:01 +00:00
Søren Schmidt
ab35f219ac Oops, fix a bug that caused updates to the screen to happen, without
anything actually changed, in this case the mousepointer logic.
1996-06-21 11:31:09 +00:00
Søren Schmidt
de4d1b835e Some news for syscons (long overdue):
Real support for a Textmode mousecursor, works by reprogramming the
charset. Together with this support for cut&paste in text mode.
To use it a userland daemon is needed (moused), which provides
the interface to the various mice protokols.
Bug fixes here and there, all known PR's closed by this update.
1996-06-21 07:19:18 +00:00
John Dyson
2a4eb04bfd Improve algorithm for page hash queue. It was previously about
as bad as it could be.  This algorithm appears to improve fork
performance (barely) measurably.
1996-06-21 05:39:22 +00:00
Bill Fenner
94334d8fc4 Use the route that's guaranteed to exist when picking a source address
for ARP requests.

The NetBSD version of this patch (see NetBSD PR kern/2381) has this change
already.  This should close our PR kern/1140 .

Although it's not quite what he submitted, I got the idea from him so
Submitted by:	Jin Guojun <jin@george.lbl.gov>
1996-06-20 22:53:08 +00:00
Bill Fenner
d7e74838d6 Remove one last rip_output from inetsw (gpalmer missed it in rev 1.30) 1996-06-20 17:52:32 +00:00
Nate Williams
17040b78cd Put the 'debug' messages of the type:
/kernel: in_rtqtimo: adjusted rtq_reallyold to 1066
  /kernel: in_rtqtimo: adjusted rtq_reallyold to 710
inside of #ifdef DIAGNOSTIC to avoid the support questions from folks
asking what this means.
1996-06-20 15:41:23 +00:00
David Greenman
1293685583 Properly account for non-page aligned buffers. 1996-06-20 08:07:30 +00:00
David Greenman
ac269d78be Minor KNF formatting change to vmapbuf() and vunmapbuf(). 1996-06-20 01:47:21 +00:00
Garrett Wollman
b8dc74a3a8 Set IFF_RUNNING on the loopback interface. 1996-06-19 16:24:10 +00:00
Nate Williams
a85fadfc45 Macro expressions should be fully parenthesized! Fix the MAXMEM
definition although it would work as it was written.

options        "MAXMEM=(128*1024)"

Suggested by:	bde
1996-06-19 15:37:52 +00:00
John Dyson
0157d6d925 Clean up vmapbuf and vunmapbuf significantly. The previous code was
very rough.
1996-06-19 03:39:24 +00:00
Julian Elischer
8e3bda0682 Submitted by: archie@whistle.com
gary went a little overboard on commenting out unused variables.
Variables needed for ISO, LLC and NETATALK
were only enabled for ISO &  LLC.. so NETATALK bombed.
1996-06-19 01:50:10 +00:00
Nate Williams
b279668708 Document MAXMEM option.
[ Closes PR#1334, slightly modified by me ]

Submitted by:	James Raynard <james@jraynard.demon.co.uk>
1996-06-18 23:21:28 +00:00
Julian Elischer
7eb4b231d3 Obtained from: Netatalk distribution.
copyright for the appletalk stack  just to keep legal
1996-06-18 20:55:13 +00:00
Andrey A. Chernov
1f013a1f05 Add new parts, kernel not booted in other case 1996-06-18 16:58:44 +00:00
Garrett Wollman
96ccf1cba9 When bringing the netkey stuff over, I forgot that I had decided to change
AF_KEY into pseudo_AF_KEY, and defined PF_KEY incorrectly.  Fix.

Noticed by: pst
1996-06-18 15:22:26 +00:00
Julian Elischer
34b5fca760 As we have appletalk protocol support we might as well show
how to get it..
1996-06-18 10:20:16 +00:00
Julian Elischer
aa6cbc16d9 remove some debugging printfs left in by mistake 1996-06-18 10:16:29 +00:00
John Dyson
32acf9a16a Add procfs_type.c to the repository. 1996-06-18 05:22:45 +00:00
John Dyson
9961971f1f Add the file procfs_type.c to procfs. 1996-06-18 05:19:45 +00:00
John Dyson
6ead3edd9c Clean-up the new VM map procfs code, and also add support for executable
format file "etype".  It contains a description of the binary type for
a process.
1996-06-18 05:16:00 +00:00
Bruce Evans
9b2b0822b7 Removed unused #includes of <i386/isa/icu.h> and <i386/isa/icu.h>. icu.h
is only used by the icu support modules and by a few drivers that know
too much about the icu (most only use it to convert `n' to `IRQn').  isa.h
is only used by ioconf.c and by a few drivers that know too much about
isa addresses (a few have to, because config is deficient).
1996-06-18 01:22:40 +00:00
John Dyson
975dcaa94f This file is the "meat" of the process address space capability. If you
would like other things added, just ask!!!  It might be pretty easy to add.
1996-06-17 22:53:27 +00:00
John Dyson
9353aadd89 Add a feature to procfs to allow display of the process address map
with multiple entries as follows:

	start address, end address, resident pages in range, private pages
		in range, RW/RO, COW or not, (vnode/device/swap/default).
1996-06-17 22:43:36 +00:00
Peter Wemm
e999a90a90 This time, get rid of the struct copies that were really causing gcc to
call memcpy..  It seems that gcc would not inline the implicit call
when copying from a volatile...
1996-06-17 18:52:53 +00:00
Bill Paul
afe0e92aa8 Stomp another compiler warning: sc_devfs_token[] should only be declared
if DEVFS is #defined.
1996-06-17 17:21:35 +00:00
Bill Paul
8a095c52ed Add a couple of #ifdef DEVFS/#endif clauses to slence the following
compiler warnings which occur if you don't have 'options DEVFS' in
your kernel config file:

../../kern/kern_descrip.c: In function `fildesc_drvinit':
../../kern/kern_descrip.c:1103: warning: unused variable `fd'
../../kern/kern_descrip.c: At top level:
../../kern/kern_descrip.c:1095: warning: `devfs_token_stdin' defined but not use
d
../../kern/kern_descrip.c:1096: warning: `devfs_token_stdout' defined but not us
ed
../../kern/kern_descrip.c:1097: warning: `devfs_token_stderr' defined but not us
ed
../../kern/kern_descrip.c:1098: warning: `devfs_token_fildesc' defined but not u
sed
1996-06-17 16:54:03 +00:00
Bruce Evans
f0ea07bffb Reduced nesting of #includes in random.h and adjusted isa/random_machdep.c
to match (pc98/random_machdep.c probably requires a similar change).  This
is a problem area for the PC98 merge - all PC98 ifdefs in <machine/*.h> are
kludges to work around incorrect layering.
1996-06-17 16:47:43 +00:00
Bruce Evans
5d1999ec59 Synced with Makefile.i386: added -Wunused. 1996-06-17 15:11:10 +00:00
Bruce Evans
43be698cb6 Moved initialization of defaults for the label for the whole disk from
disklabel(8) to the kernel (dsopen()).  Drivers should initialize the
hardware values (rpm, interleave, skews).  Drivers currently don't do
this, but it usually doesn't matter since rotational position stuff is
normally disabled.
1996-06-17 14:43:54 +00:00
Bruce Evans
7d64a7fe80 Added support for TIOCDCDTIMESTAMP (enable/get timestamp of last DCD rise).
Original version by John Hay.

Simplified timestamp code by reading the time exactly when necessary.
This may slow down the interrupt handler with extra calls to microtime(),
but only in bad configurations - the input fifo should normally be
disabled if timestamps on input are being used, since otherwise the
timestamp won't be precisely associated with any particular input event.
The interrupt handler remains slowed down by one test and branch for
each input (and now DCD change) event - avoiding this is not practical
yet.

The simplifications also fixed:
- timestamps for input sometimes being clobbered by output and modem
  status interrupts.
- valid timestamps not being available unless the port is configured with
  vector siointrts.  siointrts no longer exists.
- compiler warnings about siointr* in some configurations.

Simplified timestamp and probe code by depending on recent changes in
microtime() and DELAY() to preserve the interrupt enable flag.
1996-06-17 14:23:39 +00:00
Bruce Evans
99450dcc1d Added TIOCDCDTIMESTAMP (enable/get timestamp of last DCD rise).
Reformatted FreeBSD additions in a consistent style.
1996-06-17 13:08:09 +00:00
Bruce Evans
16263f7a8b In getit(), use read_eflags()/write_eflags() to preserve the interrupt
enable flag instead of enable_intr() to restore it to its usual state.
getit() is only called from DELAY() so there is no point in optimising
its speed (this wasn't so clear when it was extern), and using
enable_intr() made it inconvenient to call DELAY() from probes that need
to run with interrupts disabled.
1996-06-17 12:50:22 +00:00
Bruce Evans
b7911dc3bb In microtime(), use pushfl/popfl to preserve the interrupt enable flag
instead of sti to it restore to its usual state.  pushfl/popfl is
actually faster in protected mode on Pentiums (4+3 cycles instead of 9),
and using sti made it extremely inconvenient to call microtime() from
fast interrupt handlers.  pushfl/popfl is a couple of cycles slower than
sti on 486's and a couple more cycles slower on 386's, but the relative
cost of using it is not large since microtime() has to use slow i/o
instructions on the old cpus.
1996-06-17 12:43:04 +00:00
John Dyson
23fd45be00 Disable direct writes for non-blocking output. 1996-06-17 05:15:01 +00:00
John Dyson
ef743ce6ed Several bugfixes/improvements:
1) Make it much less likely to miss a wakeup in vm_page_free_wakeup
	2) Create a new entry point into pmap: pmap_ts_referenced, eliminates
	   the need to scan the pv lists twice in many cases.  Perhaps there
	   is alot more to do here to work on minimizing pv list manipulation
	3) Minor improvements to vm_pageout including the use of pmap_ts_ref.
	4) Major changes and code improvement to pmap.  This code has had
	   several serious bugs in page table page manipulation.  In order
	   to simplify the problem, and hopefully solve it for once and all,
	   page table pages are no longer "managed" with the pv list stuff.
	   Page table pages are only (mapped and held/wired) or
	   (free and unused) now.  Page table pages are never inactive,
	   active or cached.  These changes have probably fixed the
	   hold count problems, but if they haven't, then the code is
	   simpler anyway for future bugfixing.
	5) The pmap code has been sorely in need of re-organization, and I
	   have taken a first (of probably many) steps.  Please tell me
	   if you have any ideas.
1996-06-17 03:35:40 +00:00
Alexander Langer
6875d5c1b3 Fix chain numbering bug when the highest line number installed >= 65435
and the rule being added has no explicit line number set.

Submitted by:	Archie Cobbs <archie@whistle.com>
1996-06-17 00:00:35 +00:00
John Dyson
b5b40fa62b Various bugfixes/cleanups from me and others:
1) Remove potential race conditions on waking up in vm_page_free_wakeup
   by making sure that it is at splvm().
2) Fix another bug in vm_map_simplify_entry.
3) Be more complete about converting from default to swap pager
   when an object grows to be large enough that there can be
   a problem with data structure allocation under low memory
   conditions.
4) Make some madvise code more efficient.
5) Added some comments.
1996-06-16 20:37:31 +00:00
Joerg Wunsch
9306343284 Explain the options for the `od' driver. 1996-06-16 20:04:47 +00:00
Joerg Wunsch
c30bc9dba0 Miscellaneous cleanup and minor fixes by Shunsuke and by me.
. use new-style options
. introduce an option OD_AUTO_TURNOFF
. try to use the native geometry as reported by the drive instead of
  a faked on -- MOs do have a ``classical'' geometry
. make the scsi_start_unit() actually working
. some cosmetic fixes

Submitted by:	akiyama@kme.mei.co.jp (Shunsuke Akiyama)
1996-06-16 19:58:24 +00:00
Joerg Wunsch
bf3b9d70ed Make sure to update the SDEV_MEDIA_LOADED flag also when working on
the control device.

Submitted by:	akiyama@kme.mei.co.jp (Shunsuke Akiyama)
1996-06-16 19:54:02 +00:00
Peter Wemm
bde5e68a33 Fix cut/paste error; a read-only variable should have been read/write. 1996-06-16 13:32:16 +00:00
Gary Palmer
75cc5f07de Cosmetic change: make the ``ready to run'' line match the
``ready for devices'' printed out earlier by changing `devs '
to be `DEVFS: '
1996-06-15 20:37:22 +00:00
Peter Wemm
4a32095f34 A small bit of defensive programming in case the panic is during process
exit and cleanup.  the 'ps' command assumes that there are always 'nproc'
processes on the lists and will walk off the end without checking if not,
causing ddb to trap during the 'ps' command.
1996-06-15 07:08:02 +00:00
Nate Williams
771acaaa0a Whoops, I accidentally deleted a necessary ":" which is part of the
parameters to printf() using the "D" format.  (Why this even worked on
my box during testing I don't know, but as soon as I powered it on/off
it quite working.)
1996-06-15 00:43:03 +00:00
David Greenman
664275648a Move a case of PG_MAPPED being set before a pmap_enter(). This will likely
make no difference, but it will make it consistent with other uses of
PG_MAPPED.
1996-06-14 23:26:40 +00:00
Nate Williams
333f7d7bb6 At long last, we know have support for the 3C589 in a FreeBSD release
using the existing files using the existing PCCARD support.  Now that
this is in place I would like to fixup the PCCARD hooks and remove the
if_zp driver.  At this point, we support everything we used to support
*AND MORE* with the PCCARD code.

Submitted by:	Naoki Hamada <nao@sbl.cl.nec.co.jp> (via the Nomad release)

[ This works on both my 3C589B and 3C589C ]
1996-06-14 22:11:38 +00:00
Nate Williams
8ca7c1c4a0 Better code for switching the ethernet transceiver.
My 3C509B-COMBO works fine with the following patch. Switching between
UTP and BNC is quite easy. (Just type 'ifconfig ep0 link1 -link2' or 'ifconifg
ep0 link2 -link1'.)

[ I tested this with the additional PC-CARD patches and it works on both
connectors on my 3C589B and 3C589C ]

Reviewed by:	nate
Submitted by:	Naoki Hamada <nao@sbl.cl.nec.co.jp>
1996-06-14 21:28:35 +00:00