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Commit Graph

41394 Commits

Author SHA1 Message Date
Hartmut Brandt
5d10eb7c79 Use __FBSDID() as per style(9). 2003-08-05 12:19:05 +00:00
David Xu
75ea65e3a2 kse.h is not needed for these files. 2003-08-05 12:08:49 +00:00
Hartmut Brandt
3786d0183e Make the en(4) driver more like the other ATM drivers. This is the
preparation for supporting the OPENVCC and CLOSEVCC ioctls which
are needed for ng_atm. This required some re-organisation of the code
(mostly converting array indexes to pointers). This also gives us
an array of open vccs that will help in using the generic GETVCCS handler.
2003-08-05 12:02:25 +00:00
David Xu
d3b5e418bc Introduce a thread mailbox flag TMF_NOUPCALL. On some architectures other
than i386 or AMD64, TP register points to thread mailbox, and they can not
atomically clear km_curthread in kse mailbox, in this case, thread retrieves
its thread pointer from TP register and sets flag TMF_NOUPCALL in its thread
mailbox to indicate a critical region.
2003-08-05 12:00:55 +00:00
Peter Grehan
c9cbdf3393 Fix asm string newlines to keep gcc3.3 happy. Use register prefixes
to make the asm a bit more readable.
2003-08-05 11:30:18 +00:00
Hartmut Brandt
c918a63dde Move the clearing of the IFF_RUNNING flag into the reset routine.
Otherwise the interface will report RUNNING to ifconfig after doing
'ifconfig down' although it isn't running anymore.
2003-08-05 10:51:33 +00:00
Diomidis Spinellis
5987356569 Change gcc-specific aggregate initialization member specifiers
into C9X initializer designators.

Reviewed by:	schweikh (mentor)
MFC after:	4 weeks
2003-08-05 07:23:35 +00:00
Diomidis Spinellis
22316cf133 Remove extraneous semicolons. They are already provided by
the macro definition, and cause the generation of syntactically
incorrect code that gcc happens to accept.

Reviewed by:	schweikh (mentor)
MFC after:	4 weeks
2003-08-05 07:22:12 +00:00
John-Mark Gurney
95aab9cc49 add support for using kqueue to watch bpf sockets.
Submitted by:	Brian Buchanan of nCircle, Inc.
Tested on:	i386 and sparc64
2003-08-05 07:12:49 +00:00
Poul-Henning Kamp
e04e4bacf6 Use sparse struct initialization for struct pagerops.
Mark our buffers B_KEEPGIANT before sending them downstream.

Remove swap_pager_strategy implementation.
2003-08-05 06:54:56 +00:00
Poul-Henning Kamp
8e28326a8b Change the implementation of swap backing to use the VM system in normal
ways, and drop the need for vm_pager_strategy().
2003-08-05 06:54:44 +00:00
Poul-Henning Kamp
4e6586002d Use sparse struct initializations for struct pagerops.
This makes grepping for which pagers implement which methods easier.
2003-08-05 06:51:26 +00:00
Poul-Henning Kamp
f4a3d9da6e Only drop Giant around the drivers ->d_strategy() if the buffer is not
marked to prevent this.
2003-08-05 06:43:56 +00:00
Poul-Henning Kamp
8f25d34f31 Add a B_KEEPGIANT flag so non-SMPng code can get preferential treatment. 2003-08-05 06:43:12 +00:00
Hidetoshi Shimokawa
a160e00e41 Change device name notation.
- /dev/fw{,mem}X.Y represents the Y'th unit on the X'th bus.
- /dev/fw{,mem}X is an alias of fw{,mem}X.0 for compatibility.
- Clone devices.
2003-08-05 03:11:39 +00:00
Hidetoshi Shimokawa
c357858ad7 Enable IFCAP_VLAN_MTU and increase MTU for it.
Reviewed by: wpaul
2003-08-05 02:34:35 +00:00
Jeffrey Hsu
cc3426866c Make the second argument to sooptcopyout() constant in order to
simplify the upcoming PIM patches.

Submitted by:   Pavlin Radoslavov <pavlin@icir.org>
2003-08-05 00:27:54 +00:00
Ian Dowse
76bd23557b In the mknod(), mkfifo(), link(), symlink() and undelete() syscalls,
use vrele() instead of vput() on the parent directory vnode returned
by namei() in the case where it is equal to the target vnode. This
handles namei()'s somewhat strange (but documented) behaviour of
not locking either vnode when the two vnodes are equal and LOCKPARENT
but not LOCKLEAF is specified.

Note that since a vnode double-unlock is not currently fatal, these
coding errors were effectively harmless.

Spotted by:	Juergen Hannken-Illjes <hannken@eis.cs.tu-bs.de>
Reviewed by:	mckusick
2003-08-05 00:26:51 +00:00
Scott Long
477327b5c5 In _bus_dmamap_load_buffer(), only count the number of bounce pages needed if
they haven't been counted before.  This test was ommitted when bus_dmamap_load()
was merged into this function, and results in the pagesneeded field growing
without bounds when multiple deferrals happen.

Thanks to Paul Saab for beating his head against this for a few hours =-)
2003-08-04 23:40:35 +00:00
Marcel Moolenaar
02cc6a6f35 Fix logic bug in the previous commit. Any region less than 5 is a
user space region. Hence, we need to test if 5 is greater than the
region; not greater equal.
This bug caused us to call ast() while interrupting kernel mode.
2003-08-04 22:00:48 +00:00
David Malone
d2cce3d6e8 Do some minor Giant pushdown made possible by copyin, fget, fdrop,
malloc and mbuf allocation all not requiring Giant.

1) ostat, fstat and nfstat don't need Giant until they call fo_stat.
2) accept can copyin the address length without grabbing Giant.
3) sendit doesn't need Giant, so don't bother grabbing it until kern_sendit.
4) move Giant grabbing from each indivitual recv* syscall to recvit.
2003-08-04 21:28:57 +00:00
John Baldwin
bfe6598264 Adjust a comment to remove staleness and take slightly less implementation
specific perspective.
2003-08-04 20:35:13 +00:00
John Baldwin
912133cbce - GC unused cpu_thread_link().
- Move the enabling of interrupts out of assembly and into C a few
  instructions later at cpu_critical_fork_exit().  This puts more of the
  MD critical section implementation under the MD critical section API
  making it easier to test and develop alternative implementations.
2003-08-04 20:34:25 +00:00
John Baldwin
3bdbd658f1 - Since td_critnest is now initialized in MI code, it doesn't have to be
set in cpu_critical_fork_exit() anymore.
- As far as I can tell, cpu_thread_link() has never been used, not even
  when it was originally added, so remove it.
2003-08-04 20:32:45 +00:00
John Baldwin
139b7550d9 Set td_critnest to 1 when setting up a thread since it is a MI field with
MI values.  This ensures that td_critnest for a newly fork'd thread is
always valid.

Requested by:	bde (a long time ago)
2003-08-04 20:28:20 +00:00
John Baldwin
b35b737201 Insert cosmetic spaces.
Reported by:	kris
2003-08-04 19:24:25 +00:00
Julian Elischer
5774db75bd Allow foot shooting as Linux emulation needs it.
Also change "Auto mode" to use a "special" value
instead of 0, and define and document it.
I had thought libpthread had already been switched to use auto mode but
it appears that patch hasn't been committed yet.

Discussed with:	 Davidxu
2003-08-04 19:11:56 +00:00
Dag-Erling Smørgrav
bccbc20f63 Add support for multiple CPUs to cpuinfo. 2003-08-04 10:55:22 +00:00
Poul-Henning Kamp
665c0caf03 Put an uncovered page between the swap devices, that way we can be sure
to not get any cross-device I/O requests.  (The unallocated first page
protecting BSD labels already gave us this, but that hack may go away
at some point in time).

Remove the check for cross-device I/O requests in swap_pager_strategy.

Move the repeated statistics updating into flushchainbuf().
2003-08-04 08:22:49 +00:00
Bill Paul
859c6c7d03 Set the BGE_RX_MTU register correctly so that we can receive slightly
larger than normal frames, to account for the case where a bge(4) NIC
is used with VLANs. Since we set the IFCAP_VLAN_MTU flag, we must allow
reception of frames up to 1522 bytes in size rather than 1518.

Note that it is possible to work around this bug by doing:

# ifconfig bge0 mtu 1504

prior to configuring any VLAN interfaces.
2003-08-04 05:50:53 +00:00
Hidetoshi Shimokawa
183498934b - Don't mess with TX queue in fwohci_stop() if we failed to attach the device.
Tested by: wilko

- Detect memory mapping failure of registers by checking OHCI version.

Tested by: KONDOU, Kazuhiro <kazuhiro@alib.jp>
2003-08-04 05:43:02 +00:00
Marcel Moolenaar
46e31b2612 Cleanup the clock code. This includes:
o  Remove alpha specific timer code (mc146818A) and compiled-out
   calibration of said timer.
o  Remove i386 inherited timer code (i8253) and related acquire and
   release functions.
o  Move sysbeep() from clock.c to machdep.c and have it return
   ENODEV. Console beeps should be implemented using ACPI or if no
   such device is described, using the sound driver.
o  Move the sysctls related to adjkerntz, disable_rtc_set and
   wall_cmos_clock from machdep.c to clock.c, where the variables
   are.
o  Don't hardcode a hz value of 1024 in cpu_initclocks() and don't
   bother faking a stathz that's 1/8 of that. Keep it simple: hz
   defaults to HZ and stathz equals hz. This is also how it's done
   for sparc64.
o  Keep a per-CPU ITC counter (pc_clock) and adjustment (pc_clockadj)
   to calculate ITC skew and corrections. On average, we adjust the
   ITC match register once every ~1500 interrupts for a duration of
   2 consequtive interruprs. This is to correct the non-deterministic
   behaviour of the ITC interrupt (there's a delay between the match
   and the raising of the interrupt).
o  Add 4 debugging sysctls to monitor clock behaviour. Those are
   debug.clock_adjust_edges, debug.clock_adjust_excess,
   debug.clock_adjust_lost and debug.clock_adjust_ticks. The first
   counts the individual adjustment cycles (when the skew first
   crosses the threshold), the second counts the number of times the
   adjustment was excessive (any non-zero value is to be considered
   a bug), the third counts lost clock interrupts and the last counts
   the number of interrupts for which we applied an adjustment
   (debug.clock_adjust_ticks / debug.clock_adjust_edges gives the
   avarage duration of an individual adjustment -- should be ~2).

While here, remove some nearby (trivial) left-overs from alpha and
other cleanups.
2003-08-04 05:13:18 +00:00
Alan Cox
981371629a Use kmem_alloc_nofault() instead of kmem_alloc_pageable() to allocate
swapbkva.  Swapbkva mappings are explicitly managed using pmap_qenter(),
not on-demand by vm_fault(), making kmem_alloc_nofault() more appropriate.

Submitted by:	tegge
2003-08-04 04:35:04 +00:00
Robert Watson
2495048579 Now that the central POSIX.1e ACL code implements functions to
generate the inode mode from a default ACL and creation mask,
implement ufs_sync_inode_from_acl() using acl_posix1e_newfilemode().

Since ACL_OVERRIDE_MASK/ACL_PRESERVE_MASK are defined, we no
longer need to explicitly pass in a "preserve_mask" field: this
is implicit in the use of POSIX.1e semantics.

Note: this change contains a semantic bugfix for new file creation:
we now intersect the ACL-generated mode and the cmode requested by
the user process.  This means permissions on newly created file
objects will now be more conservative.  In the future, we may want
to provide alternative semantics (similar to Solaris and Linux) in
which the ACL mask overrides the umask, permitting ACLs to broaden
the rights beyond the requested umask.

PR:		50148
Reported by:	Ritz, Bruno <bruno_ritz@gmx.ch>
Obtained from:	TrustedBSD Project
2003-08-04 03:29:13 +00:00
Warner Losh
11dc7df11d fix disordering of filenames. Place the dev/ppc files in alphabetical
order.
2003-08-04 02:39:14 +00:00
Robert Watson
60bdc14e90 Move more ACL logic from the UFS code (ufs_acl.c) to the central POSIX.1e
support routines in kern_acl.c:

- Define ACL_OVERRIDE_MASK and ACL_PRESERVE_MASK centrally in acl.h: the
  mode bits that are (and aren't) stored in the ACL.

- Add acl_posix1e_acl_to_mode(): given a POSIX.1e extended ACL, generate
  a compatibility mode (only the bits supported by the POSIX.1e ACL).

- acl_posix1e_newfilemode(): Given a requested creation mode and default
  ACL, calculate the mode for the new file system object (only the bits
  supported by the POSIX.1e ACL).

PR:		50148
Reported by:	Ritz, Bruno <bruno_ritz@gmx.ch>
Obtained from:	TrustedBSD Project
2003-08-04 02:13:05 +00:00
Robert Watson
7942b925b8 In ufs_chmod(), use privilege only when required in the following
cases:

- Setting sticky bit on non-directory
- Setting setgid on a file with a group that isn't in the effective
  or extended groups of the authorizing credential

I.e., test the requirement first, then do the privilege test,
rather than doing the privilege test regardless of the need for
privilege.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2003-08-04 00:31:01 +00:00
John Polstra
f19fc5d8b3 Use the revision ID from PCI configuration space to identify Intel
8255x chips more precisely.  The information was obtained from Intel's
Open Source Software Developer Manual for the 8255x.

MFC after:	1 day
2003-08-04 00:17:16 +00:00
Marcel Moolenaar
5192a6fc07 Fix handling of external interrupts: we weren't calling ast() when
interrupting user mode. The net effect of this bug is that a clock
interrupt does not cause rescheduling and processes are not
preempted. It only takes a "while (1);" to render the machine
useless.

This bug was introduced by the context changes and EPC syscall code.
Handling of ASTs was moved to C for clarity and ease of maintenance,
but was not added for the external interrupt case.

This needs to be revisited. We now have calls to do_ast() in trap(),
break_syscall() and ivt_External_Interrupt(). A single call in
exception_restore covers these 3 places without duplication. This
is where we handled ASTs prior to the overhaul, except that the
meat has been moved to do_ast(), a C function. This was the goal
to begin with.

Pointy hat: marcel
2003-08-04 00:08:39 +00:00
Poul-Henning Kamp
12692209a6 Name swap_pager_find_dev() more correctly swp_pager_finde_dev().
Use ->bio_children to count child buffers, rather than abuse the
bio_caller1 pointer.

Expand the relevant bits of waitchainbuf() inline, this clarifies
the code a little bit.
2003-08-03 21:22:42 +00:00
Poul-Henning Kamp
5ff0108d21 I accidentally hit undo before committing, fix the resulting off-by-one. 2003-08-03 14:53:52 +00:00
Poul-Henning Kamp
86e2f1f1ea Remove the NSWAPDEV option, we have no upper limit on how many
swap devices we can have anymore.
2003-08-03 13:39:59 +00:00
Poul-Henning Kamp
8f60c087e6 Change the layout policy of the swap_pager from a hardcoded width
striping to a per device round-robin algorithm.

Because of the policy of not attempting to retain previous swap
allocation on page-out, this means that a newly added swap device
almost instantly takes its 1/N share of the I/O load but it takes
somewhat longer for it to assume it's 1/N share of the pages if there
is plenty of space on the other devices.

Change the 8G total swapspace limitation to 8G per device instead
by using a per device blist rather than one global blist.  This
reduces the memory footprint by 75% (typically a couple hundred
kilobytes) for the common case with one swapdevice but NSWAPDEV=4.

Remove the compile time constant limit of number of swap devices,
there is no limit now.  Instead of a fixed size array, store the
per swapdev structure in a TAILQ.

Total swap space is still addressed by a 32 bit page number and
therefore the upper limit is now 2^42 bytes = 16TB (for i386).

We still do not allocate the first page of each device in order to
give some amount of protection to any bsdlabel at the start of the
device.

A new device is appended after the existing devices in the swap space,
no attempt is made to fill in holes left behind by swapoff (this can
trivially be changed should it ever become a problem).

The sysctl vm.nswapdev now reflects the number of currently configured
swap devices.

Rename vm_swap_size to swap_pager_avail for consistency with other
exported names.

Change argument type for vm_proc_swapin_all() and swap_pager_isswapped()
to be a struct swdevt pointer rather than an index.

Not changed: we are still using blists to manage the free space,
but since the swapspace is no longer fragmented by the striping
different resource managers might fare better.
2003-08-03 13:35:31 +00:00
Poul-Henning Kamp
745f330503 Move extern declaration of the various pagerops from vm_pager.c
to vm_pager.h where the various pagers will also see them.
2003-08-03 09:27:39 +00:00
David E. O'Brien
eeb086be33 Deal with GCC annoyingly defining _BIG_ENDIAN. 2003-08-03 07:53:50 +00:00
David E. O'Brien
a98a5f06d3 Style sync. 2003-08-03 07:50:19 +00:00
Alan Cox
b245ac95cf Revise obj_alloc(). Most notably, use the object's lock to prevent two
concurrent invocations from acquiring the same address(es).  Also, in case
of an incomplete allocation, free any allocated pages.

In collaboration with:	tegge
2003-08-03 06:08:48 +00:00
Bosko Milekic
48bf87258f When INVARIANTS is on and we're in uma_zalloc_free(), we need to make
sure that uma_dbg_free() is called if we're about to call
uma_zfree_internal() but we're asking it to skip the dtor and
uma_dbg_free() call itself.  So, if we're about to call
uma_zfree_internal() from uma_zfree_arg() and skip == 1, call
uma_dbg_free() ourselves.
2003-08-02 22:40:27 +00:00
Alan Cox
e53f32ace5 Use kmem_alloc_nofault() rather than kmem_alloc_pageable() in pmap_mapdev().
See revision 1.140 of kern/sys_pipe.c for a detailed rationale.

Submitted by:	tegge
2003-08-02 19:26:09 +00:00
Ruslan Ermilov
889109df01 There's already the elink.ko module available, don't embed it here.
Reviewed by:	markm
2003-08-02 18:46:02 +00:00