Commit Graph

123795 Commits

Author SHA1 Message Date
Peter Wemm
7eeda22793 Interim fix for pmap problems I introduced with my last commit.
Remove the code to dyanmically change the pv_entry limits.  Go back
to a single fixed kva reservation for pv entries, like was done
before when using the uma zone.  Go back to never freeing pages
back to the free pool after they are no longer used, just like
before.

This stops the lock order reversal due to aquiring the kernel map
lock while pmap was locked.

This fixes the recursive panic if invariants are enabled.

The problem was that allocating/freeing kva causes vm_map_entry
nodes to be allocated/freed.  That can recurse back into pmap as
new pages are hooked up to kvm and hence all the problem.
Allocating/freeing kva indirectly allocate/frees memory.

So, by going back to a single fixed size kva block and an index,
we avoid the recursion panics and the LOR.

The problem is that now with a linear block of kva, we have no
mechanism to track holes once pages are freed.  UMA has the same
problem when using custom object for a zone and a fixed reservation
of kva.  Simple solutions like having a bitmap would work, but would
be very inefficient when there are hundreds of thousands of bits
in the map.  A first-free pointer is similarly flawed because pages
can be freed at random and the first-free pointer would be rewinding
huge amounts.  If we could allocate memory for tree strucures or
an external freelist, that would work.  Except we cannot allocate/free
memory here because we cannot allocate/free address space to use
it in.  Anyway, my change here reverts back to the UMA behavior of
not freeing pages for now, thereby avoiding holes in the map.

ups@ had a truely evil idea that I'll investigate.  It should allow
freeing unused pages again by giving us a no-cost way to track the
holes in the kva block.  But in the meantime,  this should get people
booting with witness and/or invariants again.

Footnote: amd64 doesn't have this problem because of the direct map
access method.  I'd done all my witness/invariants testing there.  I'd
never considered that the harmless-looking kmem_alloc/kmem_free calls
would cause such a problem and it didn't show up on the boot test.
2006-04-28 19:05:08 +00:00
Marcel Moolenaar
a31f91a061 Implement the ipend() method of the serdev I/F. 2006-04-28 18:29:23 +00:00
Christian Brueffer
8a2f9e6c0f Minor wording and formatting fixes. 2006-04-28 13:12:40 +00:00
Pawel Jakub Dawidek
84edb86df6 - Don't hold the device sx lock when going to sleep.
- Prevent possible live-lock in case of memory problems by freeing
  already completed requests first.

Reported and tested by:	markus, Bradley W. Dutton <brad-fbsd-stable@duttonbros.com>
MFC after:		1 day
2006-04-28 12:18:03 +00:00
Pawel Jakub Dawidek
a2fe5c6676 - Remove dead code.
- Comment possible event miss, which isn't critical, but probably can be
  fixed by replacing the event lock usage with the queue lock.

MFC after:	2 weeks
2006-04-28 12:13:49 +00:00
Hajimu UMEMOTO
06a99fe36f - Extend the nsswitch to support Services, Protocols and Rpc
databases.
- Make nsswitch support caching.

Submitted by:	Michael Bushkov <bushman__at__rsu.ru>
Sponsored by:	Google Summer of Code 2005
2006-04-28 12:03:38 +00:00
Pawel Jakub Dawidek
18486a5ee3 Be sure to not destroy device twice. This is not possible in theory, but
with this change there is even no theoretical race.

MFC after:	2 weeks
2006-04-28 11:52:45 +00:00
Andrew Thompson
25bcdd36e4 - use ath(4) in the wireless examples rather than the aging wi(4)
- make the packet filtering its own section and clarify a few points
 - note that the interfaces need to be upped [1]

PR:	docs/94545 [1]
2006-04-28 11:48:53 +00:00
Pawel Jakub Dawidek
a063667622 Be sure to not destroy device twice. This is not possible in theory, but
with this change there is even no theoretical race.

MFC after:	2 weeks
2006-04-28 11:47:28 +00:00
Christian Brueffer
0f0449ed87 Autogenerate hardware notes for rr232x(4). 2006-04-28 10:45:28 +00:00
Robert Watson
dba9e9ccbf Add a basic man page for the sysctl(9) macro interfaces. Previously man
pages existed only for the dynamic sysctl interfaces.  There's probably
more complete and accurate content, better advice, etc, that could be added
here.

Per scottl's suggest, add a small piece of moralizing text regarding the
fact that sysctl names quickly get embedded in system configuration files,
libraries, third party applications, and even books, so renaming and
removing names after they've been published is a tricky issue.

MFC after:	1 month
2006-04-28 10:45:27 +00:00
Scott Long
4905491fe3 Add a section about locking protocol for busdma. 2006-04-28 08:36:49 +00:00
Christian Brueffer
1f013205ec Oops, forgot to remove the old entry in the last revision. 2006-04-28 06:23:42 +00:00
Christian Brueffer
dff1951e61 Install rr232x.4 only on i386 and amd64. 2006-04-28 06:13:19 +00:00
Mike Silbersack
981b2dea6b Tweak the DMA limit from rev 1.33, it was off by one byte.
Submitted by:	scottl
2006-04-28 05:38:12 +00:00
Mike Silbersack
cff1362221 Switch all bus_dmamap_sync calls that used PREREAD to PREWRITE and all
POSTWRITE to POSTREAD.

No guarantee that all busdma is usage is perfect, but this change (in
addition to scott's last two commits) makes if_bfe work with > 1GB of
memory in my laptop.
2006-04-28 05:27:27 +00:00
Scott Long
27aafcda76 Enable the rr232x driver for amd64. 2006-04-28 05:23:10 +00:00
Scott Long
cbd6fedbf2 Fix a typo. 2006-04-28 04:39:50 +00:00
Scott Long
2de39eb9e2 Add a manpage for the rr232x driver. 2006-04-28 04:26:00 +00:00
Scott Long
2d6bdb90c1 Fix a typo that slipped in right before commit. 2006-04-28 04:00:50 +00:00
Maxim Sobolev
ab39543373 Unbreak pc98. Sorry... 2006-04-28 03:38:23 +00:00
Maxim Sobolev
8dcfaef0a0 Add some incomplete support for Marvell Yukon EC controllers based on
OpenBSD changes. With these changes, PHY part of the driver becomes
functional (it senses media changes and negotiates speed just fine),
previously it just hang with no PHY message, but no data goes through
interface (error message is "can not stop transfer of Tx/Rx descriptor).

Hopefully somebody with more clue/free time will be able to pick up
after me.
2006-04-28 03:17:37 +00:00
Jeff Roberson
6ca9fcc586 - Add a BO_NEEDSGIANT flag to the bufobj. This flag forces all child
buffers to go on the buf daemon's DIRTYGIANT queue.
 - Set BO_NEEDSGIANT on ffs's devvp since the ffs_copyonwrite handler
   runs in the context of the buf daemon and may require Giant.
2006-04-28 01:05:31 +00:00
Jeff Roberson
4b5b86816c - Consistently track ni_dvp and ni_vp with dvfslocked and vfslocked rather
than trying to optimize it into a single lock.  This adds more calls to
   lock giant with non smpsafe filesystems but is the only way to reliably
   hold the correct lock.
 - Remove an invalid assert in the mountedhere case in lookup and fix the
   code to properly deal with the scenario.  We can actually have a lookup
   that returns dp == dvp with mountedhere set with certain unmount races.

Tested by:	kris
Reported by:	kris/mohans
2006-04-28 00:59:48 +00:00
Scott Long
a6456c02ba The alignment parameter to busdma must be a power of two, while the if_bfe
driver was trying to use an arbitrary rx/tx ring size of the value.  Change
to using unrestricted values for alignment and boundary instead.
2006-04-27 23:03:00 +00:00
John Baldwin
a421d57149 Sort includes. 2006-04-27 22:09:18 +00:00
John Baldwin
eefcd2a1e6 A whitespace fix.
Submitted by:	bde
2006-04-27 22:02:27 +00:00
John Baldwin
60b0d00999 Drop locking comments. ddb functions should never use locking anyway and
no other ddb functions try to annotate what locking would otherwise be
appropriate in comments.

Prodded by:	bde
2006-04-27 21:59:43 +00:00
Max Laier
c10b140011 MFp4: reworked iwi-driver
Changelog towards if_iwi.c 1.26 (some changes have been committed separately
in the mean time):

- add led support
- add firmware loading on demand
 - auto-restart firmware when it crashes
 - serialize operations sent to the firmware to reduce firmware crashes
- add power save operation support
 - remove incorrect specification of tx power control capability
- add radio on/off switch support

- improve net80211 state machine operation
 - recognize and handle beacon miss
 - handle authentication and association failures better
 - add shared key authentication
 - fix ibss mode (many changes)
 - fix wme (many changes)
- correct radiotap support (many changes)
- correct bus dma setup of s/g
- correct various locking issues
- fix monitor mode
- fix scanning (many changes)
 - recover from wedged scan requests
 - respect active channel list
- eliminate cases where interface was marked down on error
- don't treat parity errors as fatal
- reclaim mgt frames immediately from tx queue
- correct interrupt handling, ack early (from NetBSD)
- fix short/long preamble handling

Committed with RELENG_6 compat #if's, should compile in RELENG_6.  Requires
net/iwi-firmware-kmod to function.

Much work done by:	sam
Tested by:		many (freebsd-net), ume, luigi
MFC after:		4 weeks
2006-04-27 21:43:37 +00:00
Alan Cox
7dece6c7d9 In general, bits in the page directory entry (PDE) and the page table
entry (PTE) have the same meaning.  The exception to this rule is the
eighth bit (0x080).  It is the PS bit in a PDE and the PAT bit in a
PTE.  This change avoids the possibility that pmap_enter() confuses a
PAT bit with a PS bit, avoiding a panic().

Eliminate a diagnostic printf() from the i386 pmap_enter() that serves
no current purpose, i.e., I've seen no bug reports in the last two
years that are helped by this printf().

Reviewed by: jhb
2006-04-27 21:26:25 +00:00
Scott Long
bd02c63f13 Add the rr232x driver to the default kernels. 2006-04-27 20:58:24 +00:00
Warner Losh
c171ec35b6 When pccard_safe_quote is passed NULL for src, it shouldn't panic.
Someone sent me this a while ago, but I can't find who to give them
proper credit...
2006-04-27 20:47:13 +00:00
Bruce A. Mah
af785a075f New release notes: sab(4) removal, non-AT keyboard controller i386
system support, sk(4) MPSAFE.
2006-04-27 20:33:09 +00:00
Scott Long
9bcb275009 Add the 'rr232x' driver for the HighPoint RocketRAID 2320 series of cards.
This driver was generously developed and donated by Highpoint.

It is enabled for i386 only at the moment.  I will enable it for amd64
shortly.

Obtained from: HighPoint Technologies, Inc.
2006-04-27 20:22:46 +00:00
Paul Saab
ce893772bd With minidumps, the dumping partition could be smaller than physical
memory, so checking the size of the partition is not necessary.

Tested by:	kris
2006-04-27 19:01:54 +00:00
John-Mark Gurney
5c06d111b8 back out for now... revert ccpu to being kern.ccpu... 2006-04-27 17:57:59 +00:00
Warner Losh
f4d167bdda Don't use ", but instead use ' instead. I suppose I could have also
used \".  When compiling with USB_VERBOSE, this causes syntax issues.

Noticed by:  Hans Petter Selasky
2006-04-27 17:33:25 +00:00
Marcel Moolenaar
ab2b8832cb o Add 5 Timedia single port serial cards.
o  While here, break long lines.
2006-04-27 17:08:30 +00:00
Warner Losh
830de116de ru@ recently changed lorder to support library archives. Document
this new feature prominently.  Bump date while I'm here.
2006-04-27 15:48:54 +00:00
Scott Long
9171a12bcd Fix problem with having more than 1GM of RAM. Also fix a nearby busdma
problem.

Submitted by: silby
2006-04-27 14:02:58 +00:00
David Xu
0a5fa45560 s/long/int. 2006-04-27 08:25:13 +00:00
David Xu
245116cafc - Use same priority range returned by kernel's sched_get_priority_min()
and sched_get_priority_max() syscalls.
- Remove unused fields from structure pthread_attr.
2006-04-27 08:18:23 +00:00
Simon L. B. Nielsen
0f14e62b71 sk(4) now also works on sparc64 (as of yongari's recent commits). 2006-04-27 06:08:38 +00:00
Pyun YongHyeon
d3c9476130 Uncomment sk(4) as it's now working. 2006-04-27 06:03:17 +00:00
Pyun YongHyeon
919133a8ef Bring busdmafied sk(4) to all architectures.
- MPSAFE. No more recursive lock required.
- bus_dma(9) conversion. I think it should work on all architectures.
- optimized Rx handler for each normal and jumbo frames. Previously
  sk(4) used jumbo frame management code to handle normal sized
  frames. As the handler needs an additional lock to protect jumbo
  frame management structure from races, it used two lock operations
  for each received packet. Now sk(4) uses single lock operation for
  normal frame.(Jumbo frame still needs two lock operations as before.)
  The hardware supports DMA scatter operations for Rx descriptors such
  that it's possible to take advantagee of m_cljget(9) for jumbo frames.
  However, due to a unknown reasons it resulted in poor performance on
  sparc64. So I dropped m_cljget(9) approach. This should be revisited
  since it would reduce one lock operation for jumbo frame handling.
- Tx TCP/Rx IP checksum offload support. According to the data sheet
  of SK-NET GENESIS the hardware supports Rx IP/TCP/UDP offload.
  But I couldn't make it work on my Yukon hardware. So Rx TCP/UDP was
  disabled at the moment. It seems that newer Yukon chips can support
  Tx UDP checksum offload too. But I need more documentation first.
- Added more wait time in reading VPD data. It seems that ASUS LOM
  takes a very long time to respond VPD read signal.
- Added an additional lock for MII register access callbacks.
- Added more strict received packet validation routine. Previously it
  passed corrupted packets to upper layers under certain conditions.
- A new function sk_yukon_tick() to handle auto-negotiation properly.
- Interrupt handler now checks shared interrupt source and protects
  the interrupt handler from NULL pointer dereference which was caused
  by odd status word value. The status word can returns 0xffffffff if
  cable is unplugged while Rx/Tx/auto-negotiation is in progress.
- suspend/resume support(not tested).
- Added Rx/Tx FIFO flush routine for Yukon
- Activate Tx descriptor poll timer in order to protect possible loss
  of SK_TXBMU_TX_START command. Previously the driver continuously issued
  SK_TXBMU_TX_START when it notices pending Tx descriptors not processed
  yet in interrupt handler. That approach would add additional PCI
  write access overhead under high Tx load situations and it might fail
  if the first SK_TXBMU_TX_START was lost and no interrupt is generated
  from the first SK_TXBMU_TX_START command.
- s/printf/if_printf/, s/printf/device_printf/, Axe sk_unit in softc.
- Setting multicast/station address is now safe on strict-alignment
  architectures.
- Fix long standing bug in VLAN header length setup.
- Added/corrected register definitions for Yukon.
  (Register information from Linux skge driver.)
- Added Rx status definition for Marvell Yukon/XaQti XMAC.
  (Rx status register information from Linux skge driver.)
- Update if_oerrors if we encounter watchdog error.
- callout(9) conversion

Special thanks to jkim who let me know RX status differences between
Yukon and XaQti XMAC.
It seems that there is still occasional watchdog timeout error but I
couldn't reproduce it and need more information to analyze it from
users.

Tested by:	bz(amd64), me(i386, sparc64), current ML
		Frank Behrens frank ! pinky ( sax $ de
2006-04-27 05:59:09 +00:00
Marcel Moolenaar
d902fb71da Use 115200 and not 9600 as the initial baudrate. This speeds up
detection of the FIFO size. Especially for large FIFOs.
2006-04-27 05:43:10 +00:00
Maxim Sobolev
897f1917a4 In the case when reset via keyboard controller doesn't work for some reason
(i.e. no keyboard controller present), try two other common methods for
resetting i386 machine - pci reset and port 0x92 fast reset. Only if neither
works warn user and resort to "unmap entire address space and hope for good"
hack. This makes my MacBook Pro rebooting just fine and should also help
other legacy-free hardware out there.

Also, disable interrupts unconditionally in cpu_reset_real(), since we don't
want any interference.

MFC after:	1 week
2006-04-27 05:18:26 +00:00
Xin LI
027ed650da Fix build on i386 2006-04-27 05:02:21 +00:00
Marcel Moolenaar
d95bd0c34a The size of I/O ranges can be anything from 16 bytes to 2G bytes.
Lower the minimum for memory mapped I/O from 32 bytes to 16 bytes.
This fixes bus enumeration on ia64 now that the Diva auxiliary
serial port is attached to.
2006-04-27 04:53:18 +00:00
Pyun YongHyeon
b16affc0ac Correct DRIVER_MODULE declaration.
skc does attach to pci bus instead of sk.

Submitted by:	jmg
2006-04-27 04:39:58 +00:00