Commit Graph

123668 Commits

Author SHA1 Message Date
scottl
03aec348ee The MFI driver appears first in FreeBSD 6.1 2006-04-04 04:11:55 +00:00
jasone
ecc5750010 Refactor per-run bitmap manipulation functions so that bitmap offsets only
have to be calculated once per allocator operation.

Make nil const.

Update various comments.

Remove/avoid division where possible.

For the one division operation that remains in the critical path, add a
switch statement that has a case for each small size class, and do division
with a constant divisor in each case.  This allows the compiler to generate
optimized code that does not use hardware division [1].

Obtained from:	peter [1]
2006-04-04 03:51:47 +00:00
davidxu
f921934131 Remove declaration of _thr_initial from MD header file, it is no longer
needed.
2006-04-04 03:35:26 +00:00
davidxu
8bff50a485 Simplify _get_curthread() and _tcb_ctor because libc and rtld now
already allocate thread pointer space in tls block for initial thread.
Only i386 and amd64 have been done, others still have to be tested.
2006-04-04 03:26:06 +00:00
gnn
60609380bc Remove unintended DEBUG flag setting. 2006-04-04 03:12:21 +00:00
marcel
78f0584b0b Sync with i386: Map exceptions to signals in gdb_cpu_signal() so
that kgdb(1) gets a SIGTRAP when it needs to.

Pointed out by: grehan@
2006-04-04 03:00:20 +00:00
davidxu
31f2b819c6 WARNS level 4 cleanup. 2006-04-04 02:57:49 +00:00
davidxu
2cacffb02b WARNS level 4 cleanup, still has work to do. 2006-04-04 02:57:09 +00:00
marcel
dc8b7dcaa1 The PC is register 16, not 18.
Pointed out by: grehan@
2006-04-04 02:44:51 +00:00
ps
5d986f2c0f Add support for Intel cpu model's 5 & 6.
Approved by:	jkoshy
2006-04-04 02:36:04 +00:00
jkoshy
33b6f0c5ea Freshen a comment.
Reviewed by:	jhb
2006-04-04 02:26:45 +00:00
njl
558b7687d6 Fix an off-by-one error in the port range detection. Cleanup some old
whitespace.
2006-04-04 02:22:38 +00:00
marcel
b36d718171 In z8530_divisor() return 0 if the calculated divisor is less than 0.
This happens when the baudrate is too high for the given RCLK.
2006-04-04 01:16:16 +00:00
marcel
dde58fbc0d Increment kdb_active after we stopped the other CPUs and decrement
kdb_active before we restart them. This avoids false positives on
restarted CPUs when they test for kdb_active while kdb_trap() is
still finishing up.
2006-04-04 00:40:20 +00:00
marcel
d28296b199 Improve handling of IPI_STOP:
o  use atomic operations to fiddle with stopped_cpus and started_cpus.
o  disable interrupts while we're waiting to be started.
o  remove logic relating to cpustop_restartfunc as it's not used.
2006-04-03 23:56:40 +00:00
marcel
8278e2d5fb Eliminate HAVE_STOPPEDPCBS. On ia64 the PCPU holds a pointer to the
PCB in which the context of stopped CPUs is stored. To access this
PCB from KDB, we introduce a new define, called KDB_STOPPEDPCB. The
definition, when present, lives in <machine/kdb.h> and abstracts
where MD code saves the context. Define KDB_STOPPEDPCB on i386,
amd64, alpha and sparc64 in accordance to previous code.
2006-04-03 22:51:47 +00:00
tegge
8582a7eef5 Eliminate softdep_flush() livelock by accounting for number of worklist items
marked as being in progress.
2006-04-03 22:23:23 +00:00
peter
3a90816456 Shrink the amd64 pv entry from 48 bytes to about 24 bytes. On a machine
with large mmap files mapped into many processes, this saves hundreds of
megabytes of ram.
pv entries were individually allocated and had two tailq entries and two
pointers (or addresses).  Each pv entry was linked to a vm_page_t and
a process's address space (pmap).  It had the virtual address and a
pointer to the pmap.
This change replaces the individual allocation with a per-process
allocation system.  A page ("pv chunk") is allocated and this provides
168 pv entries for that process.  We can now eliminate one of the 16 byte
tailq entries because we can simply iterate through the pv chunks to find
all the pv entries for a process.  We can eliminate one of the 8 byte
pointers because the location of the pv entry implies the containing
pv chunk, which has the pointer.  After overheads from the pv chunk
bitmap and tailq linkage, this works out that each pv entry has an
effective size of 24.38 bytes.

Future work still required, and other problems:
* when running low on pv entries or system ram, we may need to defrag
  the chunk pages and free any spares.  The stats (vm.pmap.*) show that
  this doesn't seem to be that much of a problem, but it can be done if
  needed.
* running low on pv entries is now a much bigger problem.  The old
  get_pv_entry() routine just needed to reclaim one other pv entry.
  Now, since they are per-process, we can only use pv entries that are
  assigned to our current process, or by stealing an entire page worth
  from another process.  Under normal circumstances, the pmap_collect()
  code should be able to dislodge some pv entries from the current
  process.  But if needed, it can still reclaim entire pv chunk pages
  from other processes.
* This should port to i386 really easily, except there it would reduce
  pv entries from 24 bytes to about 12 bytes.

(I have integrated Alan's recent changes.)
2006-04-03 21:36:01 +00:00
marius
6a5bc8bdd6 - s,tramoline,trampoline, in a comment.
- Use FBSDID in trap.c
- Make the global trap_sig[] static as it's not used outside of trap.c.
- In sendsig() remove an unused variable.
- In trap() sync with the other archs; for fast data access MMU miss and
  data access protection traps set ksi_addr to the SFAR reg which contains
  the faulting address and otherwise to the TPC reg. Generally the TCP reg
  contains the address of the instruction that caused the exception, except
  for fast instruction access traps (and some others; more refinement may
  be needed here) it also contains the faulting address.
  Previously sendsig() always set si_addr to the SFAR reg which is wrong
  for most traps.
- In sendsig() add support for FreeBSD old-style signals.

These changes are inspired by kmacy's sun4v changes and allow libsigsegv
to build on FreeBSD/sparc64, but it doesn't pass all checks and tests it
actually should, yet.

MFC after:	5 days
2006-04-03 21:27:01 +00:00
peter
3be39fdbda Update pmap_remove_pages(9) doc. 2006-04-03 21:17:36 +00:00
peter
0f363b7d24 Remove the unused sva and eva arguments from pmap_remove_pages(). 2006-04-03 21:16:10 +00:00
marcel
a1c5f48a6d In kdb_trap(), change the type of the local variable 'intr' from int
to register_t, as intr_disable() returns the latter and register_t
may be wider than int.

Pointed out by: marius@
2006-04-03 20:55:52 +00:00
ceri
f7026f8ce0 Bump .Dd for the birthtime options. 2006-04-03 20:53:34 +00:00
ceri
466d7db777 Add -Btime, -Bnewer, -Bmin, -newerB[Bacmt], -newer[acmt]B options to
work with the st_birthtime field of struct stat.

'B' has been chosen to match the format specifier from stat(1).

Approved by:	jhb
MFC after:	2 weeks
2006-04-03 20:36:37 +00:00
netchild
65e207f97b Milosz (sorry for not using the right 'l', it will not display corretly
in the commit log) submitted support for some NO_* knobs for delete-old*
and check-old. I converted it to the new WITHOUT_* knobs (more correctly:
MK_*) and added some dummy ones so that people can see what's missing.

Volunteers can have a look at http://phk.freebsd.dk/misc/build_options/
for a list of files.

The location looks a little bit odd to me, but I don't care about the
color of this bikeshed and follow the suggestion of our build
infrastructure guru to place it "somewhere under src/tools/ please". [1]
The build/mk/ directory looks more sane to me than the other ones there.

Submitted by:	milosz.galazka@gmail.com
Suggested by:	ru [1]
2006-04-03 18:42:44 +00:00
sam
96f86dcf07 o add opt_ath.h enable tweaking various config parameters for the driver
without modifying the source code
o default debug msgs and diag support to off

MFC after:	3 days
2006-04-03 18:14:02 +00:00
marcel
64ac08d05f Replace critical_enter() and critical_exit() in kdb_trap() with
intr_disable() and intr_restore() resp. Previously, critical
regions would have interrupts disabled, but that was changed.
Consequently, the debugger could run with interrupts enabled.
This could cause problems for the low-level console code where
received characters would trigger an interrupt that causes
the interrupt handler to read the character instead of the
cngetc() function.
2006-04-03 17:48:09 +00:00
ariff
5980319eac Add device ID for nForce 410 MCP audio controller.
PR:		kern/95257
Submitted by:	cenix <cenixxx at gmail dot com>
MFC after:	3 days
2006-04-03 17:37:27 +00:00
rwatson
56cba4038a In TCP notify routines, check inpcb for INP_TIMEWAIT and INP_DROPPED.
The INP_DROPPED check replaces the current NULL checks; the INP_TIMEWAIT
checks appear to have always been required, but not been there, which
is/was a bug.  This avoids unconditionally casting of in_ppcb to a tcpcb,
when it may be a twtcb, which may have resulted in obscure ICMP-related
panics in earlier releases.

MFC after:	3 months
2006-04-03 14:07:50 +00:00
rwatson
d67aff8ec4 Change inp_ppcb from caddr_t to void *, fix/remove associated related
casts.

Consistently use intotw() to cast inp_ppcb pointers to struct tcptw *
pointers.

Consistently use intotcpcb() to cast inp_ppcb pointers to struct tcpcb *
pointers.

Don't assign tp to the results to intotcpcb() during variable declation
at the top of functions, as that is before the asserts relating to
locking have been performed.  Do this later in the function after
appropriate assertions have run to allow that operation to be conisdered
safe.

MFC after:	3 months
2006-04-03 13:33:55 +00:00
rwatson
4586157b3a Style tweaks: convert to ANSI from K&R function prototypes.
MFC after:	3 months
2006-04-03 12:59:27 +00:00
rwatson
cf774d5382 Update comment on tcp_close() for new world order.
MFC after:	3 months
2006-04-03 12:52:13 +00:00
rwatson
206bd5674e Clarify comment on handling of non-timewait TCP states in
tcp_usr_detach().

MFC after:	3 months
2006-04-03 12:43:56 +00:00
rwatson
57fde1acd9 Add a second pass to the close-before-accept test using a call to the
tcp drop sysctl.  This should exercise the ECONNABORTED accept case.
2006-04-03 11:57:41 +00:00
rwatson
34473d63e2 Fix up locking surrounding tcp_drop sysctl: in the new world order, we
don't free inpcbs until after the socket is closed, so we always need
to unlock an inpcb after calling tcp_drop() on it.

MFC after:	3 months
2006-04-03 11:57:12 +00:00
rwatson
89f9606562 Add regression test for tcpdrop sysctl. 2006-04-03 11:34:36 +00:00
rwatson
f07835403d Add a regression test to exercise the case where accept() is called and
the next waiting socket has had a close on the remote endpoint already.
2006-04-03 10:08:35 +00:00
rwatson
2ff901e7be After checking for SO_ISDISCONNECTED in tcp_usr_accept(), return
immediately rather than jumping to the normal output handling, which
assumes we've pulled out the inpcb, which hasn't happened at this
point (and isn't necessary).

Return ECONNABORTED instead of EINVAL when the inpcb has entered
INP_TIMEWAIT or INP_DROPPED, as this is the documented error value.

This may correct the panic seen by Ganbold.

MFC after:	1 month
Reported by:	Ganbold <ganbold at micom dot mng dot net>
2006-04-03 09:52:55 +00:00
rwatson
c8b4c281fa Correct incorrect assertion in div_bind(): inp must not be NULL here.
Reported by:	tegge
MFC after:	3 months
2006-04-03 09:01:17 +00:00
marcel
c8a811b93f Remove unused variable 'error'. Forgotten in previous commit. 2006-04-02 21:58:09 +00:00
marcel
a135d9eb7b Don't claim a SAB82532. We have scc(4) for that. 2006-04-02 21:50:45 +00:00
marcel
aedb89e6c0 Eliminate the sc_hasfifo flag from the softc. It was only used by
the NS8250 class driver. The UART has FIFOs if sc_rxfifosz>1, so
test for that instead.
While here properly initialize sc_rxfifosz and sc_txfifosz in the
case the UART doesn't have FIFOs.
2006-04-02 21:45:54 +00:00
marcel
20d0f352f4 Add scc(4). 2006-04-02 21:00:17 +00:00
marcel
b6706af623 Remove uart(4) as it's supported on all architectures and that is the
default.
2006-04-02 20:59:40 +00:00
stefanf
11fa827525 Add test cases that check utility syntax errors and redirection errors. For
special built-in utilities they must terminate the shell, for other
utilities only a error message shall be written.  We currently fail both
tests.
2006-04-02 19:02:49 +00:00
stefanf
8d43248fc1 Issue an error when . (dot) is invoked without a filename. The synopsis
is just ". file" according to POSIX, however many other shells allow
arguments to be passed after the file.  For compatibility (we even use that
feature in buildworld) additional arguments are not considered to be an
error, even though this shell does not do anything with the arguments at all.
2006-04-02 18:51:32 +00:00
stefanf
0db401540e Use -s to flag POSIX's "special built-in" utilities in builtins.def. Add a
new member to struct builtincmd and set it to 1 if -s was specified.  This
is done because there are cases where special builtins must be treated
differently from other builtins.

Obtained from:	NetBSD (builtins.def part)
2006-04-02 18:43:33 +00:00
hrs
23153e3ef8 Fix a typo: s/&man.rfcomm.pppd.8;/&man.rfcomm.sppd.1;/. 2006-04-02 18:26:48 +00:00
rwatson
cce79b77fe During reformulation of tcp_usr_detach(), the call to initiate TCP
disconnect for fully connected sockets was dropped, meaning that if
the socket was closed while the connection was alive, it would be
leaked.  Structure tcp_usr_detach() so that there are two clear
parts: initiating disconnect, and reclaiming state, and reintroduce
the tcp_disconnect() call in the first part.

MFC after:	3 months
2006-04-02 16:42:51 +00:00
hrs
b93d36449d New release notes:
hwpmc(4) and pmcstat(8) profiling support for dynamically-loaded
	objects, and pmcstat(8) network logging support added[1].

Fix incorrect entries:
	gmirror/graid3 uses parallel I/O request for synchronization now.
	The parallel I/O request itself has been already supported[2].

Spotted by:	jkoshy[1] and pjd[2]
2006-04-02 14:53:28 +00:00