Commit Graph

38606 Commits

Author SHA1 Message Date
Sean Chittenden
6087c960b5 Document the tunable kern.ipc.nsfbufs in help.common and loader.8. Small
nearby grammar fixup that saves a line of display while in the loader
(help set tunables), but reuses the line for kern.ipc.nsfbufs.

Approved by:	 roam
2003-03-04 23:46:29 +00:00
Jonathan Lemon
f0757123c9 GC unused files. 2003-03-04 23:28:19 +00:00
Jonathan Lemon
1cafed3941 Update netisr handling; Each SWI now registers its queue, and all queue
drain routines are done by swi_net, which allows for better queue control
at some future point.  Packets may also be directly dispatched to a netisr
instead of queued, this may be of interest at some installations, but
currently defaults to off.

Reviewed by: hsu, silby, jayanth, sam
Sponsored by: DARPA, NAI Labs
2003-03-04 23:19:55 +00:00
John Baldwin
c141c242ac Bah, fix a bogon in the last commit: get the sense of a compare test right
so that we allow a sleepable lock to be acquired with Giant held rather
than allowing a sleepable lock to be acquired with anything but Giant held.
2003-03-04 22:34:07 +00:00
Jeff Roberson
24deed1aaa - Hold the buf lock while manipulating and inspecting its fields.
- Use gbincore() and not incore() so that we can drop the vnode interlock
   as we acquire the buflock.
 - Use GB_LOCK_NOWAIT when getting bufs for read ahead clusters so that we
   don't block on locked bufs.
 - Convert a while loop to a howmany() that will most likely be faster on
   modern processors.  There is another while loop divide that was left
   near by because it is operating on a 64bit int and is most likely faster.
 - Cleanup the cluster_read() code a little to get rid of a goto and make
   the logic clearer.

Tested on:	x86, alpha
Tested by:	Steve Kargl <sgk@troutmask.apl.washington.edu>
Reviewd by:	arch
2003-03-04 21:35:28 +00:00
John Baldwin
1106937d99 Remove safety belt: it is now ok to do a mtx_trylock() on a mutex you
already own.  The mtx_trylock() will fail however.  Enhance the comment
at the top of the try lock function to explain this.

Requested by:	jlemon and his evil netisr locking
2003-03-04 21:32:25 +00:00
John Baldwin
263067951a Replace calls to WITNESS_SLEEP() and witness_list() with equivalent calls
to WITNESS_WARN().
2003-03-04 21:03:05 +00:00
John Baldwin
9b4982bfed Add a WITNESS_WARN() call to verify that we hold no locks after running
a handler from an interrupt thread.
2003-03-04 21:01:42 +00:00
John Baldwin
35580ede37 A small overhaul of witness:
- Add a comment about special lock order rules and Giant near the top of
  subr_witness.c.  Specifically, this documents and explains the real lock
  order relationship between Giant and sleepable locks (i.e. lockmgr locks
  and sx locks).  Basically, Giant can be safely acquired either before or
  after sleepable locks and the case of Giant before a sleepable lock is
  exempted as a special case.
- Add a new static function 'witness_list_lock()' that displays a single
  line of information about a struct lock_instance.  This is used to
  make the output of witness messages more consistent and reduce some code
  duplication.
- Fixup a few comments in witness_lock().
- Properly handle the Giant-before-sleepable-lock lock order exception in
  a more general fashion and remove the no longer needed LI_SLEPT flag.
- Break up the last condition before assuming a reversal a bit to try
  and make the logic less confusing in witness_lock().
- Axe WITNESS_SLEEP() now that LI_SLEPT is no longer needed and replace it
  with a more general WITNESS_WARN() macro/function combination.
  WITNESS_WARN() allows you to output a customized message out to the
  console along with a list of held locks.  It will optionally drop into
  the debugger as well.  You can exempt a single lock from the check by
  passing it in as the second argument.  You can also use flags to specify
  if Giant should be exempt from the check, if all sleepable locks should
  be exempt from the check, and if witness should panic if any non-exempt
  locks are found.
- Make the witness_list() function static.  Other areas of the kernel
  should use the new WITNESS_WARN() instead.
2003-03-04 20:56:39 +00:00
John Baldwin
5fa8dd90f9 Miscellaneous cleanups to _mtx_lock_sleep():
- Declare some local variables at the top of the function instead of in a
  nested block.
- Use mtx_owned() instead of masking off bits from mtx_lock manually.
- Read the value of mtx_lock into 'v' as a separate line rather than inside
  an if statement for clarity.  This code is hairy enough as it is.
2003-03-04 20:32:41 +00:00
John Baldwin
6b869595c5 Properly assert that mtx_trylock() is not called on a mutex we already
owned.  Previously the KASSERT would only trigger if we successfully
acquired a lock that we already held.  However, _obtain_lock() fails to
acquire locks that we already hold, so the KASSERT was never checked in
the case it was supposed to fail.
2003-03-04 20:30:30 +00:00
John Baldwin
d7a715dc64 Wrap the hyperthreading support code with the HTT kernel option.
Hyperthreading support is now off unless the HTT option is added.

MFC-after:	3 days
2003-03-04 20:24:53 +00:00
Bosko Milekic
544244654a Fix bug introduced in 1.130. For the < MHLEN case, we should
be doing a m_gethdr(), not an m_get().

Pointed out by: Hiten Pandya <hiten@unixdaemons.com>
Pointy hat to: Me
2003-03-04 20:19:26 +00:00
Poul-Henning Kamp
d15f53f704 Bump __FreeBSD_version to mark new cdevsw initialization. 2003-03-04 12:44:48 +00:00
Poul-Henning Kamp
0238f932b8 Initialize the second buffer for mirroring to point to itself and not its
partner.
2003-03-04 10:15:19 +00:00
Hidetoshi Shimokawa
0fc9ced053 Fix printf warning on RELENG_4. 2003-03-04 06:47:17 +00:00
Jeff Roberson
e1f89c222b - Create a function sched_interact_score() which decides on the
interactivity of a kseg and assigns it a value of 0 through 100.
 - Use sched_interact_score() to determine the dynamic priority.
 - Define SCHED_CURR() in terms of sched_interact_score().
 - Adjust the maximum slice back down to 100ms.
 - Remove redundant clearing of ke_runq in sched_wakeup()
 - Clean up #defines and comment them.
2003-03-04 02:45:59 +00:00
Jeff Roberson
7261f5f68e - Add a new 'flags' parameter to getblk().
- Define one flag GB_LOCK_NOWAIT that tells getblk() to pass the LK_NOWAIT
   flag to the initial BUF_LOCK().  This will eventually be used in cases
   were we want to use a buffer only if it is not currently in use.
 - Convert all consumers of the getblk() api to use this extra parameter.

Reviwed by:	arch
Not objected to by:	mckusick
2003-03-04 00:04:44 +00:00
Jeff Roberson
f727171140 - Correct the wchan in vop_stdfsync()
This is almost what bde asked for.  There is some desire to have per fs wchans
still but that is difficult giving the current arrangement of the code.
2003-03-03 23:37:50 +00:00
Ruslan Ermilov
6de61153e8 FreeBSD 5.0 has stopped shipping /modules 2.5 years ago. Catch
up with this further by excluding /modules from the (default)
kern.module_path.
2003-03-03 22:53:35 +00:00
Ruslan Ermilov
f2bffe0f7f exists() is too aggressive when searching for files without a full path.
Inspired by:	bsd.prog.mk,v 1.105
2003-03-03 22:51:22 +00:00
Nate Lawson
7dc9111650 Pick up one file missed in the previous vprint() cleanup 2003-03-03 19:50:36 +00:00
Nate Lawson
99648386d3 Finish cleanup of vprint() which was begun with changing v_tag to a string.
Remove extraneous uses of vop_null, instead defering to the default op.
Rename vnode type "vfs" to the more descriptive "syncer".
Fix formatting for various filesystems that use vop_print.
2003-03-03 19:15:40 +00:00
Poul-Henning Kamp
ffaae05d02 Rearrange the members of struct cdevsw to be absolutely sure to catch
any initializations which are not done right.
2003-03-03 16:34:54 +00:00
Poul-Henning Kamp
182a9f7455 Make nokqfilter() return the correct return value.
Ditch the D_KQFILTER flag which was used to prevent calling NULL pointers.
2003-03-03 16:24:47 +00:00
Hidetoshi Shimokawa
46ce9fefe5 Simplify ORB queue management.
Don't send doorbell and send ORB pointer only if it's necessary.
This reduces bus traffic and interrupts much.
2003-03-03 15:27:29 +00:00
Poul-Henning Kamp
ebe789d61c Add a "-S sectorsize" option to enable Kirk to find a bug :-) 2003-03-03 13:05:00 +00:00
Poul-Henning Kamp
a8b182112d Don't initialize d_kqfilter to 0. 2003-03-03 12:48:14 +00:00
Poul-Henning Kamp
7ac40f5f59 Gigacommit to improve device-driver source compatibility between
branches:

Initialize struct cdevsw using C99 sparse initializtion and remove
all initializations to default values.

This patch is automatically generated and has been tested by compiling
LINT with all the fields in struct cdevsw in reverse order on alpha,
sparc64 and i386.

Approved by:    re(scottl)
2003-03-03 12:15:54 +00:00
Peter Grehan
03f5c00144 Simplify ofw_pci_fixup(). It doesn't need to be recursive, since the
bridge code already handles IRQ adjustment on the far side of a bridge.

Reviewed by:  benno
2003-03-03 12:05:06 +00:00
Søren Schmidt
3cb179a848 Minor cleanup of the Promise code. 2003-03-03 11:51:08 +00:00
Søren Schmidt
c55607ce1f Always set the setmode funcptr. 2003-03-03 11:15:32 +00:00
Poul-Henning Kamp
a9463ba804 Don't pick up a name from the dev_t if it is not there. 2003-03-03 11:14:36 +00:00
Ruslan Ermilov
ab404da2f1 Leave the `clobber' target alone, it clobbers too much (including
the generated Makefile) to be useful as the cleandir replacement.

Reported by:	des
2003-03-03 09:35:44 +00:00
Dag-Erling Smørgrav
1d062e2be8 Clean up whitespace and remove register keyword. 2003-03-03 09:17:12 +00:00
Dag-Erling Smørgrav
4b7ef73d71 More caddr_t removal, in conjunction with copy{in,out}(9) this time.
Also clean up some egregious casts and incorrect use of sizeof.
2003-03-03 09:14:26 +00:00
Matthew N. Dodd
ad59f9d14e Revert last commit. File tracks NetBSD.
Requested by:	 sam
2003-03-03 06:09:18 +00:00
Jeff Roberson
65c8760dbf - Shift the tick count by 10 and back around sched_pctcpu_update()
calculations.  Keep this changes local to the function so the tick count
   is in its natural form otherwise.  Previously 1000 was added each time
   a tick fired and we divided by 1000 when it was reported.  This is done
   to reduce rounding errors.
2003-03-03 05:29:09 +00:00
Matthew N. Dodd
797f247b51 sizeof(struct llc) -> LLC_SNAPFRAMELEN
sizeof(struct ether_header) -> ETHER_HDR_LEN
 sizeof(struct fddi_header) -> FDDI_HDR_LEN
2003-03-03 05:04:57 +00:00
Jeff Roberson
a6ed41865b - In sched_add() special case PRI_TIMESHARE and PRI_ITHD|PRI_REALTIME. We
always place ITHD & REALTIME threads on the current queue of the current
   cpu.  Prior to this change an interrupt thread would only ever run on one
   cpu.
2003-03-03 04:28:07 +00:00
Jeff Roberson
f1e8dc4a3b - Refrain from setting the td_priority in sched_wakeup(). It will be reset
before we return to user space.
2003-03-03 04:11:40 +00:00
Hidetoshi Shimokawa
dcae7539cb Defer allowing async. requests after self ID's have received.
This should fix some problem of SBP2 device probing.

Prior to rev 1.41, we keep writing the register while bus reset phase.
But in rev 1.41, we ignore successive bus reset events and some chips seem to
clear the register after we write to it.

Tested by: Michael Reifenberger <root@nihil.reifenberger.com>
2003-03-03 04:10:56 +00:00
Matthew N. Dodd
c6269f4b26 Use IFP2AC() rather than casting to struct arpcom * 2003-03-03 00:30:02 +00:00
Matthew N. Dodd
098a8c3b64 De-register. 2003-03-03 00:21:52 +00:00
Robert Watson
03d031626d A cute yet small MAC policy that provides a simple ACL mechanism to
permit users and groups to bind ports for TCP or UDP, and is intended
to be combined with the recently committed support for
net.inet.ip.portrange.reservedhigh.  The policy is twiddled using
sysctl(8).  To use this module, you will need to compile in MAC
support, and probably set reservedhigh to 0, then twiddle
security.mac.portacl.rules to set things as desired.  This policy
module only restricts ports explicitly bound using bind(), not
implicitly bound ports where the port number is selected by the
IP stack.  It appears to work properly in my local configuration,
but needs more broad testing.

A sample policy might be:

  # sysctl security.mac.portacl.rules="uid:425:tcp:80,uid:425:tcp:79"

This permits uid 425 to bind TCP sockets to ports 79 and 80.  Currently
no distinction is made for incoming vs. outgoing ports with TCP,
although that would probably be easy to add.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2003-03-02 23:01:42 +00:00
Dag-Erling Smørgrav
7b726be320 Get rid of caddr_t. 2003-03-02 22:23:45 +00:00
Matthew N. Dodd
7f760c4890 Reduce code duplication. This adds the function rt_check() to route.c.
Approved by:	 sam (in principle)
2003-03-02 21:34:37 +00:00
Ruslan Ermilov
04b603e5a2 Abuse cleandir' for what clobber' was supposed to do, for peter. 2003-03-02 21:25:00 +00:00
Ruslan Ermilov
73f643b411 Fixed sys/boot/pc98/boot2/Makefile to use kern.mk and
get rid of bsd.kern.mk completely.

OK'ed by:	bde
2003-03-02 21:18:40 +00:00
Poul-Henning Kamp
f16304aaf0 Explicitly initialize all cdevsw methods with the relevant nofoo() function
if they are NULL.
2003-03-02 19:46:45 +00:00
Poul-Henning Kamp
dd7a14618b Spell noread() and nowrite() correctly (ie: not "NULL") 2003-03-02 19:23:31 +00:00
Poul-Henning Kamp
a36ef7f365 Don't use evil casts in cdevsw initialization. 2003-03-02 19:17:51 +00:00
Poul-Henning Kamp
95e4359c8e Use canonical format for cdevsw initialization. 2003-03-02 18:51:46 +00:00
Poul-Henning Kamp
bbaba62872 Use canonical format for cdevsw initilization. 2003-03-02 18:50:21 +00:00
Poul-Henning Kamp
7e5b777f98 Use canonical name for cdevsw initialization. 2003-03-02 18:49:26 +00:00
Poul-Henning Kamp
6fee404efa Use canonical form for cdevsw initialization. 2003-03-02 18:47:38 +00:00
Hartmut Brandt
5dfe609dd1 Add two loader tuneables that allow one to change the maximum number of
queue items that can be allocated by netgraph and the number of free queue
items that are cached on a private list.

Netgraph places an upper limit on the number of queue items it may allocate.
When there is a large number of netgraph messages travelling through the
system (100k/sec and more) there is a high probability, that messages get
queued at the nodes and netgraph runs out of queue items. In this case the data
flow through netgraph gets blocked. The tuneable for the number of free
items lets one trade memory for performance.

The tunables are also available as read-only sysctls.

PR:		kern/47393
Reviewed by:	julian
Approved by:	jake (mentor)
2003-03-02 18:04:10 +00:00
Dag-Erling Smørgrav
521f364b80 More low-hanging fruit: kill caddr_t in calls to wakeup(9) / [mt]sleep(9). 2003-03-02 16:54:40 +00:00
Poul-Henning Kamp
715b1e0ab0 Put cdevsw initialization on canonical format. 2003-03-02 16:50:09 +00:00
Poul-Henning Kamp
3dc3dda55b Fix cdevsw initialization commit to follow canonical format. 2003-03-02 16:44:46 +00:00
Dag-Erling Smørgrav
8994a245e0 Clean up whitespace, s/register //, refrain from strong urge to ANSIfy. 2003-03-02 15:56:49 +00:00
Dag-Erling Smørgrav
c952458814 uiomove-related caddr_t -> void * (just the low-hanging fruit) 2003-03-02 15:50:23 +00:00
Poul-Henning Kamp
78b7591cc5 Format the cdevsw like all other drivers do it for improved grepability. 2003-03-02 15:32:03 +00:00
Dag-Erling Smørgrav
d5279f20c5 Convert one of our main caddr_t consumers, uiomove(9), to void *. 2003-03-02 15:29:13 +00:00
Dag-Erling Smørgrav
f9be0dee1e wakeup(9) and msleep(9) take void * arguments, not caddr_t. 2003-03-02 15:13:06 +00:00
Dag-Erling Smørgrav
34ca14c687 Clean up whitespace, unregisterize, ANSIfy, remove prototypes made
superfluous by ANSIfication.
2003-03-02 15:08:33 +00:00
Poul-Henning Kamp
b1a89575af NO_GEOM cleanup:
Remove (actually: Obscurely rename) cdevsw->d_psize() to prevent future use.
2003-03-02 14:45:05 +00:00
Poul-Henning Kamp
9c486c30e2 NO_GEOM cleanup:
Remove cdevsw->d_size() implementation.  No longer needed.
2003-03-02 14:43:46 +00:00
Poul-Henning Kamp
e8e018a984 NO_GEOM cleanup:
Remove cdevsw->d_psize() implementation.  It is no longer needed.
2003-03-02 14:42:52 +00:00
Poul-Henning Kamp
aa8918faf9 NO_GEOM cleanup:
Remove cdevsw->d_psize() implementation, we don't need it any more.
2003-03-02 14:42:01 +00:00
Poul-Henning Kamp
afadcb6108 NO_GEOM cleanup:
Use VOP_IOCTL(DIOCGMEDIASIZE) to check the size of a potential swap device
instead of the cdevsw->d_psize() method.
2003-03-02 14:37:52 +00:00
Poul-Henning Kamp
9a283f91c0 NO_GEOM cleanup:
mcdsize() is not a cdevsw->d_psize function (any more ?) so rename it,
give it a better prototype to avoid misusing d_psize_t.
2003-03-02 14:30:54 +00:00
Poul-Henning Kamp
9285a87efd NODEVFS cleanup:
Replace devfs_{create,destroy} hooks with direct function calls.
2003-03-02 13:35:30 +00:00
Jeff Roberson
491081fabf - Hold the vnode interlock across calls to bgetvp instead of acquiring it
internally.  This is required to stop multiple bufs from being associated
   with a single lblkno.
2003-03-02 06:05:23 +00:00
Scott Long
1a3a935b84 Fix 'bulk in' and 'bulk out' being reversed in a couple of error messages. 2003-03-02 02:35:00 +00:00
Alan Cox
1a1e9f41e5 Teach vm_page_sleep_if_busy() to release the vm_object lock before sleeping. 2003-03-01 19:16:32 +00:00
Tor Egge
c6faf3bf1d Remove unneeded code added in revision 1.188. 2003-03-01 17:18:28 +00:00
Mike Barcroft
2019acb6e0 Share ino_t and nlink_t. 2003-03-01 16:51:40 +00:00
Hidetoshi Shimokawa
37413f0a0f Don't reset agent before processing OCB has done. 2003-03-01 16:50:40 +00:00
Alan Cox
72c3aad7e8 MFi386 revision 1.88
Remove some long unused declarations.
2003-03-01 10:02:11 +00:00
Søren Schmidt
638914f17d Fix support for HPT controllers they where always left in PIO mode.
Amazing what a ';' can do :/
2003-03-01 09:33:35 +00:00
Stefan Eßer
1fa4dd2f14 Make /dev/pci use MAJOR_AUTO. 2003-03-01 08:57:16 +00:00
Jeff Roberson
bff5362bf2 - gc USE_BUFHASH. The smp locking of the buf cache renders this useless. 2003-03-01 05:55:03 +00:00
Marcel Moolenaar
59c9bb54ee Speed up debugging in the context of unexpected traps by printing
the address of the image base of the loader. Given cr.iip, we can
use the symbol table to figure out what function caused the trap.
2003-03-01 05:18:28 +00:00
Marcel Moolenaar
884d549049 Paranoia: Don't use the length of the option string alone to
determine whether we have command line options. We expect a
valid string pointer as well.
2003-03-01 05:13:59 +00:00
Scott Long
9e2e96d803 The aac driver has evolved enough over the last few months that it no
longer resembles the 4.x version very much.  Garbage collect the legacy
bits.
2003-03-01 05:07:19 +00:00
Ruslan Ermilov
e1ace8b4d3 Hopefully, obviate the need of ``make depend''. 2003-02-28 22:17:47 +00:00
Ruslan Ermilov
ddc474a84b Initiate the de-orbit burn sequence for <bsd.kern.mk>.
Always use sys/conf/kern.mk when building kernel/modules.
<bsd.kern.mk> is only preserved for sys/boot/pc98/boot2
for now, but this will be fixed.  If there are other
users of <bsd.kern.mk>, please let me know.

Reminded by:	bde
2003-02-28 22:12:17 +00:00
Ruslan Ermilov
5d1b6a85bc Standardize handling of locore.[sS] etc. files.
Submitted by:	jake, bde, ru
2003-02-28 21:59:14 +00:00
Sam Leffler
595064e871 fix compilation w/o INET6
Noticed by:	"James E. Flemer" <jflemer@acm.jhu.edu>
2003-02-28 20:06:29 +00:00
Maxime Henrion
0bc60d9734 GC the major number for the network entries. 2003-02-28 19:56:10 +00:00
John Hay
11229bf39e Implement outgoing interrupt pipes. It is part of the USB 1.1 spec.
The Lego Infrared Tower use it.
2003-02-28 19:28:29 +00:00
Orion Hodson
19921b23b5 o Move vendor ids into separate table.
o Add assorted vendor and codec ids.
2003-02-28 18:04:52 +00:00
Maxime Henrion
7e1f8a0b2f Make the network /dev entries use MAJOR_AUTO. 2003-02-28 18:04:42 +00:00
David Xu
9948c47f0e Check kse group limit before linking new ksegrp. 2003-02-28 15:57:33 +00:00
Warner Losh
f6820d8b82 86 ufm: it now uses MAJOR_AUTO. 2003-02-28 13:25:06 +00:00
Warner Losh
56dd04580a ufm doesn't care what major it uses. 2003-02-28 13:23:31 +00:00
Warner Losh
cfb14e7100 These appear to work as cardbus cards too 2003-02-28 13:21:17 +00:00
Poul-Henning Kamp
98bbd7aa59 NO_GEOM cleanup:
Retire the "dev_t" centric version of the disk mini-layer.
Remove now unneeded linkage field in dev_t and struct disk.
2003-02-28 10:02:02 +00:00
Poul-Henning Kamp
3e7b60db4b NO_GEOM cleanup:
Convert to "struct disk *" centric API.

OK'ed by:	sos
2003-02-28 09:53:36 +00:00
Poul-Henning Kamp
82a5503800 Retire #3: wd. 2003-02-28 09:48:59 +00:00
Poul-Henning Kamp
8cfa9ac669 NO_GEOM cleanup:
Convert to "struct disk *" centric API.
2003-02-28 09:47:22 +00:00
Poul-Henning Kamp
ad89059cbf Attempt to mark the majors which are used by drivers checked into the
CVS tree.
2003-02-28 07:49:57 +00:00
Jake Burkholder
53faa77b2f Sync with bsd.kern.mk.
Reminded by:	bde
2003-02-28 06:49:59 +00:00
Warner Losh
9cd41be1d0 pccard isn't picky about WHAT major it gets. 2003-02-28 05:56:06 +00:00
Tim J. Robbins
0e66bb97d8 Use a character device and ioctl() for communication between libncp
and the kernel instead of adding more syscalls at runtime. As a bonus,
you can now restrict access to the kernel NCP interface with chmod.
2003-02-28 04:31:29 +00:00
Jake Burkholder
3fb37429df Use MAJOR_AUTO. GC statically assigned majors. 2003-02-28 04:21:13 +00:00
Benno Rice
82b65292eb These files are no longer used. They have been replaced with similarly named
.S files.
2003-02-28 03:35:42 +00:00
Justin T. Gibbs
acae33b029 aic79xx.c:
Clear the LQICRC_NLQ status should it pop up after we have
	already handled the SCSIPERR.  During some streaming operations
	this status can be delayed until the stream ends.  Without this
	change, the driver would complain about a "Missing case in
	ahd_handle_scsiint".

	In the LQOBUSFREE handler...

		Don't return the LQOMGR back to the idle state until after
		we have cleaned up ENSELO and any status related to this
		selection.  The last thing we need is the LQO manager starting
		another select-out before we have updated the execution queue.
		It is not clear whether the LQOMGR would, or would not
		start a new selection early.

		Make sure ENSELO is off prior to clearing SELDO by flushing
		device writes.

		Move assignment of the next target SCB pointer inside of
		an if to make the code clearer.  The effect is the same.

	Dump card state in both "Unexpected PKT busfree" paths.

	In ahd_reset(), set the chip to SCSI mode before reading SXFRCTL1.
	That register only exists in the SCSI mode.  Also set the mode
	explicitly to the SCSI mode after chip reset due to paranoia.
	Re-arrange code so that SXFRCTL1 is restored as quickly after the
	chip reset as possible.

	S/G structurs must be 8byte aligned.  Make this official by saying
	so in our DMA tag.

	Disable CIO bus stretch on MDFFSTAT if SHVALID is about to come
	true.  This can cause a CIO bus lockup if a PCI or PCI-X error
	occurs while the stretch is occurring - the host cannot service
	the PCI-X error since the CIO bus is locked out and SHVALID will
	never resolve.  The stretch was added in the Rev B to simplify the
	wait for SHVALID to resolve, but the code to do this in the open
	source sequencer is so simple it was never removed.

	Consistently use MAX_OFFSET for the user max syncrate set from
	non-volatile storage.  This ensures that the offset does not
	conflict with AH?_OFFSET_UNKNOWN.

	Have ahd_pause_and_flushwork set the mode to ensure that it has
	access to the registers it checks.  Also modify the checking of
	intstat so that the check against 0xFF can actually succeed if
	the INT_PEND mask is something other than 0xFF.  Although there
	are no cardbus U320 controllers, this check may be needed to
	recover from a hot-plug PCI removal that occurs without informing
	the driver.

	Fix a typo.  sg_prefetch_cnt -> sg_prefetch_align.  This fixes
	an infinite loop at card initialization if the cacheline size is 0.

aic79xx.h:
	Add AHD_EARLY_REQ_BUG bug flag.

	Fix spelling errors.

	Include the CDB's length just after the CDB pointer in the DMA'ed
	CDB case.

	Change AH?_OFFSET_UNKNOWN to 0xFF.  This is a value that the
	curr->offset can never be, unlike '0' which we previously used.
	This fixes code that only checks for a non-zero offset to
	determine if a sync negotiation is required since it will fire
	in the unknown case even if the goal is async.

aic79xx.reg:
	Add comments for LQISTAT bits indicating their names in the 7902
	data book.  We use slightly different and more descriptive names
	in the firmware.

	Fix spelling errors.

	Include the CDB's length just after the CDB pointer in the DMA'ed
	CDB case.

aic79xx.seq:
	Update comments regarding rundown of the GSFIFO to reflect reality.

	Fix spelling errors.

	Since we use an 8byte address and 1 byte length, shorten the size
	of a block move for the legacy DMA'ed CDB case from 11 to 9 bytes.

	Remove code that, assuming the abort pending feature worked, would
	set MK_MESSAGE in the SCB's control byte on completion to catch
	invalid reselections.  Since we don't see interrupts for completed
	selections, this status update could occur prior to us noticing the
	SELDO.  The "select-out" queue logic will get confused by the
	MK_MESSAGE bit being set as this is used to catch packatized
	connections where we select-out with ATN.  Since the abort pending
	feature doesn't work on any released controllers yet, this code was
	never executed.

	Add support for the AHD_EARLY_REQ_BUG.  Don't ignore persistent REQ
	assertions just because they were asserted within the bus settle delay
	window.  This allows us to tolerate devices like the GEM318 that
	violate the SCSI spec.

	Remove unintentional settnig of SG_CACHE_AVAIL.  Writing this bit
	should have no effect, but who knows...

	On the Rev A, we must wait for HDMAENACK before loading additional
	segments to avoid clobbering the address of the first segment in
	the S/G FIFO.  This resolves data-corruption issues with certain
	IBM (now Hitachi) and Fujitsu U320 drives.

	Rearrange calc_residual to avoid an extra jmp instruction.

	On RevA Silicon, if the target returns us to data-out after we
	have already trained for data-out, it is possible for us to
	transition the free running clock to data-valid before the required
	100ns P1 setup time (8 P1 assertions in fast-160 mode).  This will
	only happen if this L-Q is a continuation of a data transfer for
	which we have already prefetched data into our FIFO (LQ/Data
	followed by LQ/Data for the same write transaction).  This can
	cause some target implementations to miss the first few data
	transfers on the bus.  We detect this situation by noticing that
	this is the first data transfer after an LQ (LQIWORKONLQ true),
	that the data transfer is a continuation of a transfer already
	setup in our FIFO (SAVEPTRS interrupt), and that the transaction
	is a write (DIRECTION set in DFCNTRL). The delay is performed by
	disabling SCSIEN until we see the first REQ from the target.

	Only compile in snapshot savepointers handler for RevA silicon
	where it is enabled.

	Handle the cfg4icmd packetized interrupt.  We just need to load
	the address and count, start the DMA, and CLRCHN once the transfer
	is complete.

	Fix an oversight in the overrun handler for packetized status
	operations.  We need to wait for either CTXTDONE or an overrun
	when checking for an overrun.  The previous code did not wait
	and thus could decide that no overrun had occurred even though
	an overrun will occur on the next data-valid req.  Add some
	comment to this section for clarity.

	Use LAST_SEG_DONE instead of LASTSDONE for testing transfer
	completion in the packetized status case.  LASTSDONE may come up
	more quickly since it only records completion on the SCSI side,
	but since LAST_SEG_DONE is used everywhere else (and needs to be),
	this is less confusing.

	Add a missing invalidation of the longjmp address in the non-pack
	handler.  This code needs additional review.

aic79xx_inline.h:
	Fix spelling error.

aic79xx_osm.c:
	Set the cdb length for CDBs dma'ed from host memory.

	Add a comment indicating that, should CAM start supporting cdbs
	larger than 16bytes, the driver could store the CDB in the status
	buffer.

aic79xx_pci.c:
	Add a table entry for the 39320A.

	Added a missing comma to an error string table.

	Fix spelling errors.
2003-02-27 23:23:16 +00:00
Jake Burkholder
dd606b5425 - Removed various cruft from before we had a hosted toolchain (!).
- Moved special compiler flags to bsd.kern.mk so they get used for modules
  too.
2003-02-27 23:02:22 +00:00
Poul-Henning Kamp
9fc954f139 NO_GEOM cleanup:
Move <sys/conf.h> before <sys/disk.h>.
No need for raidread()/raidwrite(), we have generic code for that.
Remove non-functional dump code.
Make raidinit() return the softc, not the dev_t.
Move to "struct disk*" centric API.
Fix printfs' to get name from struct disk instead of dev_t.

OK'ed by:	scottl
2003-02-27 22:04:08 +00:00
Poul-Henning Kamp
32f034faca Add support for the Elan CPU hardware watchdog used in "active" mode. 2003-02-27 21:13:08 +00:00
Sam Leffler
e85eab7751 add 5801 and 5802 recognition (somehow lost in transition from openbsd)
Noticed by:	Larry Baird <lab@gta.com>
2003-02-27 21:10:20 +00:00
Poul-Henning Kamp
e6258fb774 Add header file defining a simple, yet expressive watchdog interface
which can be implemented on all the watchdog hardware I know.
2003-02-27 21:07:36 +00:00
Nate Lawson
fdb8bf0997 Zero cpi->target_sprt since atapi-cam does not support target mode. This
gets rid of annoying messages when targbh tries to attach to the ATA bus
and gets rejected.

MFC after:	1 day
2003-02-27 20:56:56 +00:00
Jake Burkholder
418306e3bf Include majors.o in SYSTEM_OBJS to make sparc64 kernels link. This is a
quick fix while I work on a better solution.
2003-02-27 20:55:09 +00:00
John Baldwin
295435632d Expand some #ifdef's to fix I386_CPU compile.
Reported by:	Andy Farkas <andyf@speednet.com.au>
2003-02-27 20:38:48 +00:00
Alan Cox
8480cd45a5 Remove some long unused declarations. (For example, the PV flags have not
been used since revision 1.8, roughly nine years ago.)
2003-02-27 20:13:20 +00:00
Bill Paul
c6d8cd1e00 Remember to set if_capenable when setting up checksum offload in fxp_attach().
Pointed out by: jlemon
2003-02-27 19:41:55 +00:00
Maxime Henrion
03ab197379 When DDB is in the kernel, unlock VTY switching so that we
don't end up freezing the box.  This makes VTY locking useless
in the DDB case but a box which is supposed to be physically
secure shouldn't compile DDB anyway.

Reviewed by:	silence on -audit
2003-02-27 18:24:06 +00:00
Mark Murray
c1f4590524 This is not going to win prizes for the most useful module ever,
but it is useful to me for some testing and warns-fixing.
2003-02-27 18:08:44 +00:00
Mark Murray
ef8b020c73 Warns and lint fix. Nearly all trivial stuff. 2003-02-27 18:07:11 +00:00
Poul-Henning Kamp
28484399ed Update the comment to reflect new reality.
GC more entries.
2003-02-27 15:34:12 +00:00
Poul-Henning Kamp
5fc8342289 GC some more major numbers. 2003-02-27 15:18:56 +00:00
Poul-Henning Kamp
85f19dccdb Add the flip-side check: If a driver wants a particular major#, make
sure it is marked as allocated in reserved_majors[].  Whine if it wasn't.
2003-02-27 15:17:37 +00:00
Poul-Henning Kamp
f85c6d3502 Use MAJOR_AUTO. 2003-02-27 15:05:28 +00:00
Ruslan Ermilov
e4de92ce2b Hook up the if_my module to the build. 2003-02-27 14:49:56 +00:00
Maxime Henrion
bca0668a92 We can now properly return ENODEV in nommap(), so do it.
Remove the now wrong comment which says we can't.
2003-02-27 14:48:53 +00:00
Poul-Henning Kamp
beea48b254 Add support for allocating a device driver major number on demand.
To do this, initialize the d_maj member of the cdevsw to MAJOR_AUTO.
When the cdevsw is first passed to make_dev() a free major number
will be assigned.

Until we have a bit more experience with this a printf will announce
this fact.

Major numbers are not reclaimed, so loading/unloading the same
device driver which uses MAJOR_AUTO will eventually deplete the
pool of free major numbers and the system will panic when it can
not allocate one.  Still undecided who to invonvenience with the
solution to this.
2003-02-27 14:46:51 +00:00
Tim J. Robbins
39abaa5fab Use noread(), nowrite() and nopoll() instead of our own stub functions. 2003-02-27 14:35:21 +00:00
Poul-Henning Kamp
c2b46fcca4 Add yet a patch for the patchwork quilt called sio(4):
Allow people set set flags on pci based SIO ports.
2003-02-27 14:09:36 +00:00
Poul-Henning Kamp
59c5c475f1 Typo, I must have hit xZZ in vi(1). 2003-02-27 12:53:21 +00:00
Hidetoshi Shimokawa
455454994f MFp4(simokawa_sbp branch)
Improve SBP device probeing:
- Wait 2 sec before issuing LOGIN ORB expecting the reconnection
	hold timer expires.
- Serialize management ORB and scanning LUN by CAM on each target.
	This should fix the problem for devices which have multiple LUNs.
	Test device is donated by: Jaye Mathisen <mrcpu@internetcds.com>
- Freeze SIM queue for 2 sec after BUS RESET.
- Retry with LOGIN rather than RECONNECT after LOGIN is not completed for
	BUS RESET.
- Use appropriate CAM status for BUS RESET and DEVICE RESET.
- Let CAM to scan targets after BUS REST.
- Implement CAM scan target function.
- Keep our own devq freeze count.
- Let CAM to know that SBP does tagged queuing.

These should be merged to RELENG_4 before 4.8-RELEASE.
2003-02-27 12:51:24 +00:00
Poul-Henning Kamp
6cec1852d4 Make flags bit 0x10000 mean that PPS timestamping should use the
CTS instead of the DCD pin.
2003-02-27 12:27:09 +00:00
Tim J. Robbins
f449c0f11d Copy some VM changes from smbfs_putpages() to nwfs_putpages(): lock
page queues, use vm_page_undirty().
2003-02-27 11:35:22 +00:00
Tim J. Robbins
ef9e45dd01 Build the ncp and nwfs modules again, but only on i386 for now. 2003-02-27 11:31:08 +00:00
Søren Schmidt
33c788a554 Only use function 1 not 0 on cypress chips. 2003-02-27 09:42:57 +00:00
Hartmut Brandt
dce4c82d8e When we have found a chunk of memory that is large enough and have computed
a correctly aligned address in this block we really want to check, that the
part of the chunk that starts at the aligned address is large enough with
regard to the original request. Comparing it to 0 makes no sense, because this
is always true except in the rare case, that the aligned address is just at
the end of the chunk.

Approved by:	jake (mentor)
2003-02-27 08:56:41 +00:00
Poul-Henning Kamp
76d6aef572 Add necessary awk magic to create a table of major numbers allocated
in conf/majors so we can avoid autoallocating them in the kernel.
2003-02-27 08:52:11 +00:00
Hartmut Brandt
b89bc9e62b When a process has been waiting on a condition variable or mutex the
td_wmesg field in the thread structure points to the description string of
the condition variable or mutex. If the condvar or the mutex had been
initialized from a loadable module that was unloaded in the meantime,
td_wmesg may now point to invalid memory. Retrieving the process table now
may panic the kernel (or access junk). Setting the td_wmesg field to NULL
after unblocking on the condvar/mutex prevents this panic.

PR:		kern/47408
Approved by:	jake (mentor)
2003-02-27 08:43:27 +00:00
Tim J. Robbins
2a42bccb40 Fix vnode corruption bug when trying to rename files across filesystems.
Similar to the bug fixed in smbfs_vnops.c rev 1.33.
2003-02-27 08:26:17 +00:00
Poul-Henning Kamp
e30fb64028 Mark comments with '#' to make this machine-readable 2003-02-27 07:57:00 +00:00
Tim J. Robbins
4116d5c10f Sync nwfs_access() with smbfs_access(): use vaccess() instead of checking
permissions ourself, fixes problem with VAPPEND.
2003-02-27 07:46:01 +00:00
Poul-Henning Kamp
f477b4fd53 NODEVFS cleanup:
Remove cdevsw_add() and cdevsw_remove(), they served us well for a long time.
Bump __FreeBSD_version to 500104 to mark this.
2003-02-27 07:40:44 +00:00
Poul-Henning Kamp
4c61f9036b NODEVFS cleanup:
Don't call devsw_{add,delete}().
These two drivers are actually broken, and have been for quite some time.
2003-02-27 07:36:03 +00:00
Søren Schmidt
4f57804cd3 Fix UDMA modes setup on CMD chips. 2003-02-27 07:11:42 +00:00
Tim J. Robbins
04dbfb5c89 Catch up with recent netncp changes: ncp_chkintr() takes a thread, not
a proc, as its second argument.
2003-02-27 06:49:46 +00:00
David Xu
3b3df40fc4 Release sched_lock before calling upcall_free. 2003-02-27 05:42:01 +00:00
Scott Long
4bc7efe837 Add the ID for the CS4205 codec found in Dell laptops. Obtained from
the CS4205 spec.
2003-02-27 03:51:43 +00:00
David Xu
1d56863dd2 Needn't kse.h 2003-02-27 03:16:35 +00:00
Julian Elischer
ac2e415327 Change the process flags P_KSES to be P_THREADED.
This is just a cosmetic change but I've been meaning to do it for about a year.
2003-02-27 02:05:19 +00:00
David Xu
7d33ae9677 cat KSE > /dev/null 2003-02-27 01:11:58 +00:00
Ruslan Ermilov
824018495d Implemented "nooption" and "nomakeoption" config(8) tokens.
Fixed memory leak in the "nodevice" option implementation.

Use these instead of sed(1) in MD NOTES.

Use a single makefile (sys/conf/makeLINT.mk) to generate
LINT for all architectures.  (Previous versions missed
the LINT dependency on Makefile, and i386 version also
missed the dependency on ${NOTES}.)

Fixed bugs in the previous NOTES conversion using the
"nodevice" token and sed(1):

- i386 LINT lost "device pst".

- pc98 LINT lost SC_*, MAXCONS and KBD_DISABLE_KEYMAP_LOAD
  options, and got needless DPT_* options.

- Added nooptions PPC_DEBUG, PPC_PROBE_CHIPSET, KBD_INSTALL_CDEV
  to sparc64 LINT so that it has a chance to config(8).

This basically returns us to where we were before.
2003-02-26 23:36:59 +00:00
Bill Paul
c8bca6dc3d As previously threatened, add TCP/IP checksum offload support to
the fxp driver. This is enabled only for the 82550/82551 chips
(PCI revision code 12 or 13). RX and TX checksum offload are
both supported. Transmit offload is limited to TCP and UDP only
right now: there seems to be a problem with IP header checksumming
on transmit in some cases.

This chip has hardware VLAN support as well. I hope to enable
support for this eventually.
2003-02-26 22:12:04 +00:00
Max Khon
d52cf765d3 Catch up with KSE changes.
Reviewed by:	tjr
2003-02-26 21:25:55 +00:00
Poul-Henning Kamp
6d473442ca NODEVFS cleanup:
Don't call cdevsw_{add,remove}()
Bracket a more correct subset in "#if experimental"
2003-02-26 21:14:39 +00:00
Poul-Henning Kamp
73f936c5ac NODEVFS cleanup:
Don't call cdevsw_{add,remove}()
Remove remnants of the previous DEVFS.
2003-02-26 21:10:04 +00:00
Poul-Henning Kamp
e3163ad47d NODEVFS cleanup: Don't call cdevsw_{add,remove}() 2003-02-26 21:04:51 +00:00
Poul-Henning Kamp
f400e58886 msg 2003-02-26 21:01:26 +00:00
Poul-Henning Kamp
109a8a2e47 NODEVFS cleanup: Create devices with make_dev() instead of cdevsw_add() 2003-02-26 20:54:46 +00:00
Poul-Henning Kamp
e4d0d8c84a msg 2003-02-26 20:53:28 +00:00
Poul-Henning Kamp
81d4b45da7 NODEVFS cleanup: remove calls to cdevsw_remove() 2003-02-26 20:20:58 +00:00
Mike Barcroft
f0603d5be6 Move the typedef for size_t into _iovec.h, so that size_t is available
for struct iovec.
2003-02-26 20:16:58 +00:00
Mike Barcroft
7e7a2c70c0 Change spelling of u_int' to unsigned int' in the POSIX case. 2003-02-26 20:10:54 +00:00
Bill Paul
7dd982591b Some more updates for the new world order:
- Make transmission of packets work again. This stopped working because
  ether_ifattach() was forcing ifp->if_output to be ether_output() and
  clobbering our attempt to override this vector with a pointer to
  ng_fec_output(). Move the overriding of ifp->if_output to after
  ether_ifattach().

- Abandon the use of the netgraph ng_ether_input_p hook for snagging
  incoming frames, and instead override the ifp->if_input vector for
  interfaces that have been aggregated into our bundle. (I would have
  loved to have written things this way in the first place, but I
  didn't want to have to be the one to implement the if_input hook
  and change all the drivers.) This avoids collisions with the ng_ether
  module, which uses the same hook. Each aggregated device now calls
  ng_fec_input() directly, which then fakes up the rcvif pointer
  before invoking ifp->if_input itself.

This module should actually work now.
2003-02-26 19:49:32 +00:00
John Baldwin
844933a831 Move an optimization check so that it breaks out of the correct loop.
Basically, as soon as we have run out of events to handle in the swi,
we stop looping through all the channels in a for loop.
2003-02-26 19:21:56 +00:00
Søren Schmidt
9fb9aa7f06 Fix a reversed test for ATAPI_DEVICE in the Promise setup code. 2003-02-26 19:13:17 +00:00
Olivier Houchard
7ee68e82e7 Add SigmaTel STAC9750 entry.
Submitted by:	Paulius Bulotas <paulius.bulotas@microlink.lt>
2003-02-26 18:39:04 +00:00
Jonathan Lemon
272c5dfe93 In timewait state, if the incoming segment is a pure in-sequence ack
that matches snd_max, then do not respond with an ack, just drop the
segment.  This fixes a problem where a simultaneous close results in
an ack loop between two time-wait states.

Test case supplied by: Tim Robbins <tjr@FreeBSD.ORG>
Sponsored by: DARPA, NAI Labs
2003-02-26 18:20:41 +00:00
Sam Leffler
f1dacb5270 Change default setting of hw.wi.txerate to zero so that tx error msgs are
ignored (as before).  This was the original setting but a bug in ppsratecheck
made me do stupid things.
2003-02-26 17:18:35 +00:00
Sam Leffler
893bec8059 o fix ppsratecheck to interpret a maxpps of zero as "ignore everything"
o add a comment explaining the significance of using 0 or -1 (actually
  any negative value) for maxpps
2003-02-26 17:16:38 +00:00
Mike Barcroft
832b6bd471 Simplify struct __timespec, fix style bugs, add an XXX comment.
Submitted by:	bde
2003-02-26 16:50:01 +00:00
Olivier Houchard
33673595a6 Unbreak emu10k1 by properly using the buffer address.
New contestant for the lamest commit of the year award:	cognet
2003-02-26 16:11:18 +00:00
Maxime Henrion
09e192903c Unbreak the IOMMU code.
Pointy hat to:	mux
Reviewed by:	tmm
2003-02-26 15:02:55 +00:00
Mark Murray
c63e8d6470 No-op. Change the type of unnamed bit-fields to unsigned to shut up
warnings.
2003-02-26 14:59:14 +00:00
Peter Grehan
4b67de3419 Register typo and incorrect 32-bit constant load in previous commit.
Resulted in AST delivery not working.
2003-02-26 14:41:39 +00:00
Orion Hodson
a4273e83bc Replicate OSS behaviour when rate settings fails.
PR:	kern/26563
2003-02-26 14:38:19 +00:00
Jonathan Lemon
ef6b48deb9 The TCP protocol lock may still be held if the reassembly queue dropped FIN.
Detect this case and drop the lock accordingly.

Sponsored by: DARPA, NAI Labs
2003-02-26 13:55:13 +00:00
Yoshihiro Takahashi
a5459e94a5 Use rman_get_start() to get start address of the resource. 2003-02-26 13:46:40 +00:00
David Xu
426269b2c2 Fix a bug when handling SIGCONT.
Reported By: Mike Makonnen <mtm@identd.net>
2003-02-26 12:47:46 +00:00
Marcel Moolenaar
21c598caae Increase the block size for reading and writing from 8KB to 1MB and
introduce a preprocessor define for it. The larger block size
significantly speeds up the loading of the kernel.

Submitted by: Arun Sharma <arun.sharma@intel.com>
2003-02-26 09:13:05 +00:00
Mike Silbersack
a75a485d62 Fix a condition so that ip reassembly queues are emptied immediately
when maxfragpackets is dropped to 0.

Noticed by:	bmah
2003-02-26 07:28:35 +00:00
Scott Long
303473e252 Bump __FreeBSD_version to note that taskqueue_swi now runs without Giant,
and the Giant-encumbered version is now called taskqueue_swi_giant.
2003-02-26 06:59:22 +00:00
Scott Long
3f9be55c27 Revert the use of -g that leaked in. 2003-02-26 06:56:46 +00:00
Bill Paul
0aef141cd0 Attempt to make the ng_fec module play nice with BPF again. Things have
changed since this code was written:

- The ng_ether_input_p hook only accepts two arguments now: the pointer
  to the ether header structure is gone.

- It's no longer necessary to cons up a fake ether header before passing
  incoming packets to BPF_MTAP().

ng_fec_input() has been modified to account for these two changes.
Running tcpdump on fec0 should work now.

PR:	kern/46720
2003-02-26 06:38:54 +00:00
David E. O'Brien
a8896ec82d Consistently use NOFORTH to control the usage of ficl. 2003-02-26 06:18:52 +00:00
David Xu
f5044aeb45 Better to not know anything about KSE. 2003-02-26 05:47:25 +00:00
Warner Losh
3dc191a139 Add SMC 34C90. Not tested, but should be a no-op except for the id string.
Print the sockbase when we can't get the memory for debug.
2003-02-26 05:45:48 +00:00
Warner Losh
d705fb0577 Add a number of IDs from linux for old, rare pci devices:
o A second 82092AA id.
o SMC 34c90
Plus a couple of trivial formatting changes.
2003-02-26 05:44:00 +00:00
Scott Long
ae54359608 Bring aac out from under Giant:
- the mutex aac_io_lock protects the main codepaths which handle queues and
  hardware registers.  Only one acquire/release is done in the top-half and
  the taskqueue.  This mutex also applies to the userland command path and
  CAM data path.
- Move the taskqueue to the new Giant-free version.
- Register the disk device with DISKFLAG_NOGIANT so the top-half processing
  runs without Giant.
- Move the dynamic command allocator to the worker thread to avoid locking
  issues with bus_dmamem_alloc().

This gives about 20% improvement in most of my benchmarks.
2003-02-26 04:46:21 +00:00
Scott Long
7874f606d5 Introduce a new taskqueue that runs completely free of Giant, and in
turns runs its tasks free of Giant too.  It is intended that as drivers
become locked down, they will move out of the old, Giant-bound taskqueue
and into this new one.  The old taskqueue has been renamed to
taskqueue_swi_giant, and the new one keeps the name taskqueue_swi.
2003-02-26 03:15:42 +00:00
Scott Long
13f9c3024f Use BUS_SPACE_MAXADDR_32BIT in the DMA tag where needed. Before the recent
fix to BUS_SPACE_MAXADDR, we were probably bouncing quite a bit =-(
2003-02-26 02:55:58 +00:00
Scott Long
46777e9769 Retire the aacd major (151) now that it's no longer needed. 2003-02-26 02:52:14 +00:00
Scott Long
7540e65e84 Move to 'struct disk*' API
Submitted by:	phk
2003-02-26 02:50:27 +00:00
Maxime Henrion
f6c912dd0c Correctly set BUS_SPACE_MAXSIZE in all the busdma backends.
It was bogusly set to 64 * 1024 or 128 * 1024 because it was
bogusly reused in the BUS_DMAMAP_NSEGS definition.
2003-02-26 02:16:06 +00:00
David Xu
5614648e5e Add a missing '!'. 2003-02-26 01:56:14 +00:00
Robert Watson
05c06d15e8 Further GC of M_STRING, missed previously. 2003-02-26 01:00:29 +00:00
Robert Watson
ae4f61f0d7 Replace license with two-clause BSD; an old license template with three
clauses was used by mistake.
2003-02-26 00:59:53 +00:00
Robert Watson
b8e39e3ad3 GC M_STRING, no longer required as strdup() accepts a malloc type.
Requested by:	phk
2003-02-26 00:58:35 +00:00
David Xu
4b4866ed42 Add a simple facility to allow round roubin in userland.
Reviewed by:	julain
2003-02-26 00:58:23 +00:00
Jeff Roberson
48d4ffc119 - The interlock was not being droped in nfs_flush() if the first part of
an if clause was true.  Break the two clauses out into seperate statements
   since they require different actions.

Reported/Tested by:	jake
Spotted by:	jhb
2003-02-26 00:24:19 +00:00
Kirk McKusick
7e734c4149 When doing cleanup of excessive buffers in bdwrite (see kern/vfs_bio.c
delta 1.371) we must ensure that we do not get ourselves into a
recursive trap endlessly trying to clean up after ourselves.

Reported by:	Attila Nagy <bra@fsn.hu>
Sponsored by:   DARPA & NAI Labs.
2003-02-25 23:59:09 +00:00
Kirk McKusick
74f3809a19 Change the field used to test whether the superblock has been updated
from the filesystem size field to the filesystem maximum blocksize
field. The problem is that older versions of growfs updated only the
new size field and not the old size field. This resulted in the old
(smaller) size field being copied up to the new size field which
caused the filesystem to appear to fsck to be badly trashed.

This also adds a sanity check to ensure that the superblock is not
being updated when the filesystem is mounted read-only. Obviously
such an update should never happen.

Reported by:	Nate Lawson <nate@root.org>
Sponsored by:   DARPA & NAI Labs.
2003-02-25 23:21:08 +00:00
John Baldwin
fe6301c61c Chase the musical variable names.
Pointy hat to:	jhb
Reported by:	des
2003-02-25 22:48:33 +00:00
Mike Makonnen
0bd5f7979d Unbreak mutex profiling (at least for me).
o Always check for null when dereferencing the filename component.
	o Implement a try-and-backoff method for allocating memory to
	  dump stats to avoid a spin-lock -> sleep-lock mutex lock order
	  panic with WITNESS.

Approved by:	des, markm (mentor)
Not objected:	jhb
2003-02-25 22:28:46 +00:00
Robert Watson
354d43abf3 Pass a malloc type into the libkern strdup() implementation explicitly,
so that callers can specify what malloc pool the resulting memory
should come from.

Requested by:	phk
2003-02-25 22:11:39 +00:00
Poul-Henning Kamp
9fed9b054d NO_GEOM cleanup:
Retire major #13 (da), #116 (ad), #157 (ar)
2003-02-25 22:09:10 +00:00
Poul-Henning Kamp
f64bbf8b61 NO_GEOM cleanup:
Move to "struct disk *" centric api.
2003-02-25 22:06:21 +00:00
Søren Schmidt
2957c08b9c Fix support for Acer chips. The UDMA enable regs wasn't set properly. 2003-02-25 21:22:27 +00:00
David E. O'Brien
6e818956c5 Move most everything back to a MI NOTES, and use "nodevice" in MD NOTES
Where needed.  Use 'sed' for now in place of "nooptions".  Add a sparc64
MD NOTES.

Reviewed by:	arch@
2003-02-25 20:59:23 +00:00
John Baldwin
e1159d10c0 Limit the maximum I/O size to 8 pages for version 2 controllers. This
fixes problems with some mlx(4) cards in Alpha machines.

Reviewed by:	msmith (ages ago)
2003-02-25 20:47:22 +00:00
John Baldwin
464e014eb9 Fix a small fat-finger: s/mlxd/mxld/.
Reported by:	Bob Willcox <bob@immure.com>
2003-02-25 20:35:56 +00:00
Jake Burkholder
0f1a7e05a2 - Added inlines pmap_is_current, pmap_is_alternate and pmap_set_alternate
for testing and setting the current and alternate address spaces.
- Changed PTDpde and APTDpde to arrays to support multiple page directory
  pages.

ponsored by:	DARPA, Network Associates Laboratories
2003-02-25 19:40:21 +00:00
Ruslan Ermilov
e478cf0a5a Fixed CLEANFILES.
Submitted by:	cron
2003-02-25 15:41:49 +00:00
Søren Schmidt
dd6a5ae906 Convert to new disk API.
Prodded by: phk
2003-02-25 15:33:36 +00:00
Tim J. Robbins
93997ef1c9 Allocate struct ipx_ifaddrs with an initial reference count of 1, not 0.
The wrong reference count was causing them to get freed too early and
have their contents scrambled.
2003-02-25 15:10:23 +00:00
Søren Schmidt
2e6c2a1089 Properly teardown the interrupt so we wont panic on detach. 2003-02-25 14:46:30 +00:00
Søren Schmidt
472e291b31 Removed the ISA only hooks here, no longer needed.. 2003-02-25 14:24:42 +00:00
Robert Watson
9327ee33bf When generating a TCP response to a connection, not only test if the
tcpcb is NULL, but also its connected inpcb, since we now allow
elements of a TCP connection to hang around after other state, such
as the socket, has been recycled.

Tested by:	dcs
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2003-02-25 14:08:41 +00:00
Maxime Henrion
a4910cd21c Bump __FreeBSD_version for the d_mmap_t interface change. 2003-02-25 13:38:09 +00:00
Maxime Henrion
b9deb009c2 Convert one more d_mmap_t consumer I missed in my previous commit. 2003-02-25 13:30:50 +00:00
Søren Schmidt
ae64a900aa Fix support for the old CMD 646 chips, interrupt setup was wrong. 2003-02-25 12:56:37 +00:00
Maxim Konovalov
b36f5b3735 style(9): join lines. 2003-02-25 11:53:11 +00:00
Maxim Konovalov
99e8617d24 Ip reassembly queue structure has ipq_nfrags now. Count a number of
dropped ip fragments precisely.

Reviewed by:	silby
2003-02-25 11:49:01 +00:00
David Xu
d9b05fa0b0 Remove an unsafe KASSERT. 2003-02-25 11:23:17 +00:00
Jeff Roberson
869d735043 - Properly handle the vnode interlock in nfs_fsync.
Reported by:	phk
2003-02-25 08:50:21 +00:00
Jeff Roberson
2e3981a70c - Add the missing NULL interlock argument to a recently added BUF_LOCK. 2003-02-25 08:23:11 +00:00
Søren Schmidt
b301920c88 Revert the probe code change.
It helped those fake devices probe delays to go away, but as a side
effect it also made some not so conforming CD/DVD drives go away...
2003-02-25 08:22:01 +00:00
Poul-Henning Kamp
5cd0cc885f NO_GEOM cleanup:
Move to "struct disk *" centric API.
Add NULL check to a malloc(9) return value.

Ok'ed by:	sos
2003-02-25 08:02:57 +00:00
Poul-Henning Kamp
42170da1d8 NO_GEOM cleanup:
Move to new "struct disk *" centric API.
Retire major #147 (twed)
2003-02-25 07:41:51 +00:00
Poul-Henning Kamp
b2fe65c5be NO_GEOM cleanup:
Move to "struct disk*" centric API.
Retire major #131 (mlxd)
2003-02-25 07:35:41 +00:00
Poul-Henning Kamp
e78dcaf403 Retire major #133 (amrd). 2003-02-25 07:24:51 +00:00
Alan Cox
077808c588 Fuse two #ifdefs with identical conditions. 2003-02-25 06:46:08 +00:00
Kirk McKusick
3a7053cb60 Prevent large files from monopolizing the system buffers. Keep
track of the number of dirty buffers held by a vnode. When a
bdwrite is done on a buffer, check the existing number of dirty
buffers associated with its vnode. If the number rises above
vfs.dirtybufthresh (currently 90% of vfs.hidirtybuffers), one
of the other (hopefully older) dirty buffers associated with
the vnode is written (using bawrite). In the event that this
approach fails to curb the growth in it the vnode's number of
dirty buffers (due to soft updates rollback dependencies),
the more drastic approach of doing a VOP_FSYNC on the vnode
is used. This code primarily affects very large and actively
written files such as snapshots. This change should eliminate
hanging when taking snapshots or doing background fsck on
very large filesystems.

Hopefully, one day it will be possible to cache filesystem
metadata in the VM cache as is done with file data. As it
stands, only the buffer cache can be used which limits total
metadata storage to about 20Mb no matter how much memory is
available on the system. This rather small memory gets badly
thrashed causing a lot of extra I/O. For example, taking a
snapshot of a 1Tb filesystem minimally requires about 35,000
write operations, but because of the cache thrashing (we only
have about 350 buffers at our disposal) ends up doing about
237,540 I/O's thus taking twenty-five minutes instead of four
if it could run entirely in the cache.

Reported by:	Attila Nagy <bra@fsn.hu>
Sponsored by:   DARPA & NAI Labs.
2003-02-25 06:44:42 +00:00
David Xu
d4b570f053 Remove a bogus comment. 2003-02-25 05:17:18 +00:00
David Xu
768298d8c4 Remove a never true condition. 2003-02-25 05:14:18 +00:00
Jeff Roberson
17661e5ac4 - Add an interlock argument to BUF_LOCK and BUF_TIMELOCK.
- Remove the buftimelock mutex and acquire the buf's interlock to protect
   these fields instead.
 - Hold the vnode interlock while locking bufs on the clean/dirty queues.
   This reduces some cases from one BUF_LOCK with a LK_NOWAIT and another
   BUF_LOCK with a LK_TIMEFAIL to a single lock.

Reviewed by:	arch, mckusick
2003-02-25 03:37:48 +00:00
Maxime Henrion
07159f9c56 Cleanup of the d_mmap_t interface.
- Get rid of the useless atop() / pmap_phys_address() detour.  The
  device mmap handlers must now give back the physical address
  without atop()'ing it.
- Don't borrow the physical address of the mapping in the returned
  int.  Now we properly pass a vm_offset_t * and expect it to be
  filled by the mmap handler when the mapping was successful.  The
  mmap handler must now return 0 when successful, any other value
  is considered as an error.  Previously, returning -1 was the only
  way to fail.  This change thus accidentally fixes some devices
  which were bogusly returning errno constants which would have been
  considered as addresses by the device pager.
- Garbage collect the poorly named pmap_phys_address() now that it's
  no longer used.
- Convert all the d_mmap_t consumers to the new API.

I'm still not sure wheter we need a __FreeBSD_version bump for this,
since and we didn't guarantee API/ABI stability until 5.1-RELEASE.

Discussed with:		alc, phk, jake
Reviewed by:		peter
Compile-tested on:	LINT (i386), GENERIC (alpha and sparc64)
Runtime-tested on:	i386
2003-02-25 03:21:22 +00:00
Jeffrey Hsu
edf02ff15d Hold the TCP protocol lock while modifying the connection hash table. 2003-02-25 01:32:03 +00:00
Marcel Moolenaar
907cf80fbf Remove support for running in SimOS. The support has rotted over
time and there's no indication that it will improve anytime soon.
By removing support for SimOS it is possible to build LINT on
Alpha, which is considered more important at the moment.

Not objected to on: alpha@
2003-02-25 00:42:40 +00:00
David E. O'Brien
957a6263b6 Only apply rev 1.10 (which hacks around the i386 boot2 being too big for
both ufs1 and ufs2 support) on i386.
2003-02-25 00:10:20 +00:00
Poul-Henning Kamp
7d6ddd1027 NO_GEOM cleanup:
Move to new "struct disk *" centered API".

OK'ed by:	emoore
2003-02-24 21:49:27 +00:00
Jake Burkholder
5cd612b27e - Removed UMAXPTDI and UMAXPTEOFF.
- Changed VM_MAXUSER_ADDRESS to be defined in terms of PTDPTDI.  In order for
  assumptions about the recursive page table map to work it must be the base
  of the recursive map.  Any pte offset that's not NPTEPG will break these
  assumptions.

Sponsored by:	DARPA, Network Associates Laboratories
2003-02-24 20:29:52 +00:00
Alan Cox
3fa24ec9f1 In vm_page_dirty(), assert that the page is not in the free queue(s). 2003-02-24 17:30:45 +00:00
Alexander Kabaev
ba873f4c18 Correctly map SIGSYS signal to/from Linux.
Submitted by:   "Georg-W. Koltermann" <g.w.k@web.de>
2003-02-24 16:16:45 +00:00
Yoshihiro Takahashi
2302407b21 The mpbiosreason variable does not used for pc98. 2003-02-24 14:36:03 +00:00
Yoshihiro Takahashi
7bc5ac11b7 Fix printf format error. 2003-02-24 14:32:27 +00:00
David Schultz
9cdb2d4d9d Expand the reference count on struct dquot to 32 bits.
This fixes a panic on large systems where a single user
may have more than 64K active or inactive vnodes.

PR:		48234
Reviewed by:	mike (mentor)
2003-02-24 08:49:59 +00:00
Kirk McKusick
3bf0ed940b When removing the last item from a non-empty worklist, the worklist
tail pointer must be updated.

Reported by:	Kris Kennaway <kris@obsecurity.org>
Sponsored by:   DARPA & NAI Labs.
2003-02-24 07:28:41 +00:00
David E. O'Brien
e901be8e96 <machine/vmparam.h> is the right place to get KERNBASE, so don't special
platform case it (or use alternate spellings).
2003-02-24 06:56:18 +00:00