Commit Graph

157777 Commits

Author SHA1 Message Date
Rick Macklem
de5f647070 Modify lib/libstand/nfs.c to use NFSv3 instead of NFSv2.
This allows the nfs_getrootfh() function to return the
correct file handle size to pxe.c for pxeboot. It also
results in NFSv2 no longer being used by default anywhere
in FreeBSD. If built with OLD_NFSV2 defined, the old
code that predated this patch will be built and NFSv2
will be used.

Tested by:	danny at cs.huji.ac.il
MFC after:	2 weeks
2010-09-02 01:00:13 +00:00
Pyun YongHyeon
8c6cd8631f Fix stupid error in r212109 which didn't swap DMA maps. This caused
IOMMU panic on sparc64 under high TX load.
2010-09-02 00:44:05 +00:00
Rick Macklem
090c02f8bd Modify nfs_diskless.c to recognize the environment variable
boot.nfsroot.nfshandlelen and set the diskless root fs to
use NFSv3 and this file handle length when it is set. If
this environment variable is not set, the diskless root fs
will use NFSv2 and the same defaults as before. This fixes
the problem where the diskless nfs root fs had to be on a
FreeBSD server for NFSv3 to work, because it did not know
the correct file handle length and assumed the size used
by FreeBSD. Until pxeboot and loader are replaced by ones
built from commits coming soon, boot.nfsroot.nfshandlelen
will not be set by them and the diskless root fs will use
NFSv2 unless the /etc/fstab entry has the "nfsv3" option
specified.

Tested by:	danny at cs.huji.ac.il
MFC after:	2 weeks
2010-09-01 23:51:07 +00:00
Andrew Thompson
910cb8feb9 Add missing MODULE_VERSION() definitions, this resolves problems around
duplicate module loads.

PR:		usb/125736
Submitted by:	danger, mm
Reviewed by:	hselasky
2010-09-01 23:47:53 +00:00
Pyun YongHyeon
7723fa2e04 Move sis_reset() to sis_initl(). This ensures driver starts with
known good state of controller.
2010-09-01 22:50:11 +00:00
Pyun YongHyeon
d199ef7e0d Avoid controller reinitialization which could be triggered by
dhclient(8) or alias addresses are added.

PR:	kern/87506
2010-09-01 22:16:25 +00:00
Pyun YongHyeon
ae9e8d4935 Do not reinitialize controller whenever promiscuous mode or
allmulti is toggled. Controller does not require reinitialization.
This removes unnecessary controller reinitialization whenever
tcpdump is used.
While I'm here remove unnecessary variable reinitialization.
2010-09-01 22:08:23 +00:00
Pyun YongHyeon
fc58ee15ff Report result of link state change to caller. Previously it always
returned success.
2010-09-01 21:44:36 +00:00
Pyun YongHyeon
d7b57e79e5 Overhaul link state change handling. Previously sis(4) blindly
configured TX/RX MACs before getting a valid link. After that, when
link state change callback is called, it called device
initialization again to reconfigure TX/RX MACs depending on
resolved link state. This hack created several bad side effects and
it required more hacks to not collide with sis_tick callback as
well as disabling switching to currently selected media in device
initialization. Also it seems sis(4) was used to be a template
driver for long time so other drivers which was modeled after
sis(4) also should be changed.

TX/RX MACs are now reconfigured after getting a valid link. Fix for
short cable error is also applied after getting a link because it's
only valid when the resolved speed is 100Mbps.

While I'm here slightly reorganize interrupt handler such that
sis(4) always read SIS_ISR register to see whether the interrupt is
ours or not. This change removes another hack and make it possible
to nuke sis_stopped variable in softc.
2010-09-01 21:42:19 +00:00
Matthew D Fleming
0f7a0ebd59 Fix a bug with sched_affinity() where it checks td_pinned of another
thread in a racy manner, which can lead to attempting to migrate a
thread that is pinned to a CPU.  Instead, have sched_switch() determine
which CPU a thread should run on if the current one is not allowed.

KASSERT in sched_bind() that the thread is not yet pinned to a CPU.

KASSERT in sched_switch() that only migratable threads or those moving
due to a sched_bind() are changing CPUs.

sched_affinity code came from jhb@.

MFC after:	2 weeks
2010-09-01 20:32:47 +00:00
Pyun YongHyeon
91c265b83d s/u_intXX_t/uintXX_t/g 2010-09-01 19:53:15 +00:00
Max Laier
36058c09e4 rmlock(9) two additions and one change/fix:
- add rm_try_rlock().
 - add RM_SLEEPABLE to use sx(9) as the back-end lock in order to sleep while
   holding the write lock.
 - change rm_noreadtoken to a cpu bitmask to indicate which CPUs need to go
   through the lock/unlock in order to synchronize.  As a side effect, this
   also avoids IPI to CPUs without any readers during rm_wlock.

Discussed with:		ups@, rwatson@ on arch@
Sponsored by:		Isilon Systems, Inc.
2010-09-01 19:50:03 +00:00
Pyun YongHyeon
a629f2b183 bus_dma(9) cleanup.
o Enforce TX/RX descriptor ring alignment. NS data sheet says the
   controller needs 4 bytes alignment but use 16 to cover both SiS
   and NS controllers. I don't have SiS data sheet so I'm not sure
   what is alignment restriction of SiS controller but 16 would be
   enough because it's larger than the size of a TX/RX descriptor.
   Previously sis(4) ignored the alignment restriction.
 o Enforce RX buffer alignment, 4.
   Previously sis(4) ignored RX buffer alignment restriction.
 o Limit number of TX DMA segment to be used to 16. It seems
   controller has no restriction on number of DMA segments but
   using more than 16 looks resource waste.
 o Collapse long mbuf chains with m_collapse(9) instead of calling
   expensive m_defrag(9).
 o TX/RX side bus_dmamap_load_mbuf_sg(9) support and remove
   unnecessary callbacks.
 o Initial endianness support.
 o Prefer local alignment fixup code to m_devget(9).
 o Pre-allocate TX/RX mbuf DMA maps instead of creating/destroying
   these maps in fast TX/RX path. On non-x86 architectures, this is
   very expensive operation and there is no need to do that.
 o Add missing bus_dmamap_sync(9) in TX/RX path.
 o watchdog is now unarmed only when there are no pending frames
   on controller. Previously sis(4) blindly unarmed watchdog
   without checking the number of queued frames.
 o For efficiency, loaded DMA map is reused for error frames.
 o DMA map loading failure is now gracefully handled. Previously
   sis(4) ignored any DMA map loading errors.
 o Nuke unused macros which are not appropriate for endianness
   operation.
 o Stop embedding driver maintained structures into descriptor
   rings. Because TX/RX descriptor structures are shared between
   host and controller, frequent bus_dmamap_sync(9) operations are
   required in fast path. Embedding driver structures will increase
   the size of DMA map which in turn will slow down performance.
2010-09-01 19:33:40 +00:00
Pyun YongHyeon
1d885b48c1 Nuke unnecessary return at the end of function. 2010-09-01 18:41:59 +00:00
Pyun YongHyeon
cc26c0fd68 style(9) - space after keywords. 2010-09-01 18:39:35 +00:00
Pyun YongHyeon
8eca70be71 Remove leading and trailing white spaces.
No functional changes.
2010-09-01 18:28:08 +00:00
Jayachandran C.
833182b77e Updates for the RMI MIPS platform code
- set cache_coherent_dma flag in cpuinfo for XLR, this will make sure that
  BUS_DMA_COHERENT flag is handled correctly in busdma_machdep.c
- iodi.c, call device_get_name() just once
- clear RMI specific EIRR while intializing CPUs
- remove debug print in intr_machdep.c
2010-09-01 17:35:31 +00:00
Ed Maste
be4572c896 Add a sysctl knob to accept input packets on any link in a failover lagg. 2010-09-01 16:53:38 +00:00
Michael Tuexen
fc0487080a Fix a bug which results in peer IPv4 addresses a.b.c.d with 224<=d<=239
incorrectly being detected as multicast addresses on little endian systems.

MFC after: 2 weeks
2010-09-01 16:11:26 +00:00
Dimitry Andric
cd70197aa9 Use a cleaner expression to retrieve the memory size in pc98's boot2.c,
which also avoids NULL pointer arithmetic, as suggested by jhb.  The
available space goes from 11 bytes to 7.

Reviewed by:	nyan
Approved by:	rpaulo (mentor)
2010-09-01 15:24:47 +00:00
Ed Maste
e5ddf11581 As long as we are going to panic anyway, there's no need to hide additional
information behind DIAGNOSTIC.
2010-09-01 13:47:11 +00:00
David Xu
21a9296f63 Remove incorrect comments, also make sure signal is
disabled when unregistering sigaction.
2010-09-01 13:22:55 +00:00
Maxim Konovalov
0090656231 o Sync the man page with the reality: nfs/ includes
are under include/ and include/fs/.

PR:		docs/139153
Submitted by:	gjb
MFC after:	1 week
2010-09-01 12:08:54 +00:00
Rui Paulo
ea950d20f6 Make the /dev/dtrace/helper node have the mode 0660. This allows
programs that refuse to run as root (pgsql) to install probes when their
user is part of the wheel group.

Sponsored by:	The FreeBSD Foundation
2010-09-01 12:08:32 +00:00
Rui Paulo
8f7264f0e3 Include <sys/sdt.h> on a generated header.
Sponsored by:	The FreeBSD Foundation
2010-09-01 11:27:09 +00:00
Ed Schouten
2400afc155 Remove reference to device minor numbers in psm(4) man page.
The number returned by stat(2) is generated automatically, so it is not
possible to deduce whether the device is blocking or not.

MFC after:	1 week
2010-09-01 09:53:24 +00:00
Maxim Konovalov
2888756701 o List MOUNTVER and SCHED classes. X-ref gsched(8). Bump Dd.
PR:		docs/149925
Submitted by:	arundel
2010-09-01 08:32:40 +00:00
David Xu
12c61c22ce In function __pthread_cxa_finalize(), also make code for removing
atfork handler be async-signal safe.
2010-09-01 07:09:46 +00:00
Alexander Motin
901c71c704 Increase device reset timeout from 10 to 15 seconds, same as in ahci(4).
Some devices found need about 10-12 seconds to spinup.
2010-09-01 06:43:41 +00:00
Ulf Lilleengen
0cc17ce608 - Remove duplicate comment.
PR:		kern/148820
Submitted by:	pluknet <pluknet - at - gmail.com>
2010-09-01 05:34:17 +00:00
David Xu
a523216bc6 pthread_atfork should acquire writer lock and protect the code
with critical region.
2010-09-01 03:55:10 +00:00
David Xu
ada33a6e36 Change atfork lock from mutex to rwlock, also make mutexes used by malloc()
module private type, when private type mutex is locked/unlocked, thread
critical region is entered or leaved. These changes makes fork()
async-signal safe which required by POSIX. Note that user's atfork handler
still needs to be async-signal safe, but it is not problem of libthr, it
is user's responsiblity.
2010-09-01 03:11:21 +00:00
David Xu
02c3c85869 Add signal handler wrapper, the reason to add it becauses there are
some cases we want to improve:
  1) if a thread signal got a signal while in cancellation point,
     it is possible the TDP_WAKEUP may be eaten by signal handler
     if the handler called some interruptibly system calls.
  2) In signal handler, we want to disable cancellation.
  3) When thread holding some low level locks, it is better to
     disable signal, those code need not to worry reentrancy,
     sigprocmask system call is avoided because it is a bit expensive.
The signal handler wrapper works in this way:
  1) libthr installs its signal handler if user code invokes sigaction
     to install its handler, the user handler is recorded in internal
     array.
  2) when a signal is delivered, libthr's signal handler is invoke,
     libthr checks if thread holds some low level lock or is in critical
     region, if it is true, the signal is buffered, and all signals are
     masked, once the thread leaves critical region, correct signal
     mask is restored and buffered signal is processed.
  3) before user signal handler is invoked, cancellation is temporarily
     disabled, after user signal handler is returned, cancellation state
     is restored, and pending cancellation is rescheduled.
2010-09-01 02:18:33 +00:00
David Xu
137cf33d5e rescure comments from RELENG_4. 2010-09-01 01:26:07 +00:00
Jamie Gritton
881f6af44b Whitespace and comment fixes.
MFC after:	3 days
2010-08-31 23:14:03 +00:00
Jamie Gritton
4d02a3e762 Don't over-allocate array values in jailparam_export.
Fix a little comment typo.

MFC after:	3 days
2010-08-31 21:50:09 +00:00
Jamie Gritton
fa04d5d393 Make it clear in the example that jailparam_export's return value
should be freed.

MFC after:	3 days
2010-08-31 21:48:45 +00:00
Pyun YongHyeon
175f87424f Remove unnecessary atomic operation in bge_poll. bge(4) always
holds a driver lock in the function entry and
memory synchronization is handled by bus_dmamap_sync(9).
2010-08-31 20:56:18 +00:00
Jung-uk Kim
c74dea9cc1 Make sure the interrupt entry point is within the video ROM range. We must
not change interrupt vector if it is not pointing the ROM itself.  Actually,
we just fail shadowing altogether if that is the case because the shadowed
copy will be useless for sure and POST may not be relocatable or useful.
While I'm here, fix a debugging message under bootverbose, really.  r211829
fixed one case but broke another.  Mea Culpa.
2010-08-31 20:21:52 +00:00
Pyun YongHyeon
95a0a340f4 bge_txeof() already checks whether it has to free transmitted mbufs
or not by comparing reported TX consumer index with saved index. So
remove unnecessary check done after freeing transmitted mbufs.
While I'm here nuke unnecessary variable initializations.
2010-08-31 19:59:18 +00:00
Pawel Jakub Dawidek
81bbc7f749 Eliminate confusing while () loop. In the first version of the code it was
there to avoid gotos, but in the current version it serves no purpose.

MFC after:	2 weeks
2010-08-31 19:01:46 +00:00
Xin LI
cff4750233 For consistency, change all 'i386' and MACHINE_ARCH to x86.
Reviewed by:	jhb
MFC after:	1 week
2010-08-31 19:01:12 +00:00
Pyun YongHyeon
38cc61518b Handle PAE case correctly. You cannot effectively specify a 4GB
boundary in PAE case so use a 2GB boundary for PAE as suggested by
jhb.

Pointed out by:	jhb
Reviewed by:	jhb
2010-08-31 18:48:09 +00:00
Dimitry Andric
227209559d Avoid directly manipulating a NULL pointer (which could result in
undefined behaviour) in sys/boot/pc98/boot2/boot2.c.

Reviewed by:	nyan
Approved by:	rpaulo (mentor)
2010-08-31 18:11:50 +00:00
Matthew D Fleming
a2a200a24d Have memguard(9) crash with an easier-to-debug message on double-free.
Reviewed by:    zml
MFC after:      3 weeks
2010-08-31 17:43:47 +00:00
Dimitry Andric
52e2247273 Always compile pc98 boot2 with gcc instead of clang, just as with i386
boot2.  Unfortunately both still are too big when compiled with clang.

Reviewed by:	nyan
Approved by:	rpaulo (mentor)
2010-08-31 17:38:20 +00:00
Pyun YongHyeon
5b610048ec Split common parent DMA tag into ring DMA tag and TX/RX mbuf DMA
tag. All controllers that are not BCM5755 or higher have 4GB
boundary DMA bug. Previously bge(4) used 32bit DMA address to
workaround the bug(r199670). However this caused the use of bounce
buffers such that it resulted in poor performance for systems which
have more than 4GB memory. Because bus_dma(9) honors boundary
restriction requirement of DMA tag for dynamic buffers, having a
separate TX/RX mbuf DMA tag will greatly reduce the possibility of
using bounce buffers. For DMA buffers allocated with
bus_dmamem_alloc(9), now bge(4) explicitly checks whether the
requested memory region crossed the boundary or not.
With this change, only the DMA buffer that crossed the boundary
will use 32bit DMA address. Other DMA buffers are not affected as
separate DMA tag is created for each DMA buffer.
Even if 32bit DMA address space is used for a buffer, the chance to
use bounce buffer is still very low as the size of buffer is small.
This change should eliminate most usage of bounce buffers on
systems that have more than 4GB memory.

More correct fix would be teaching bus_dma(9) to honor boundary
restriction for buffers created with bus_dmamem_alloc(9) but it
seems that is not easy.

While I'm here cleanup bge_dma_map_addr() and remove unnecessary
member variables in bge_dmamap_arg structure.

Tested by:	marcel
2010-08-31 17:33:48 +00:00
Dimitry Andric
c05f0da034 Use a more robust way to substitute gcc for clang, when compiling
gnu/lib/libobjc and sys/boot/i386/boot2, so it also works when using
absolute paths and/or options, as in CC="/absolute/path/clang -foo".

Approved by:	rpaulo (mentor)
2010-08-31 17:33:29 +00:00
Matthew D Fleming
6d3ed393d6 The realloc case for memguard(9) will copy too many bytes when
reallocating to a smaller-sized allocation.  Fix this issue.

Noticed by:     alc
Reviewed by:    alc
Approved by:    zml (mentor)
MFC after:      3 weeks
2010-08-31 16:57:58 +00:00
Nathan Whitehorn
b2a237be5c Restructure how reset and poweroff are handled on PowerPC systems, since
the existing code was very platform specific, and broken for SMP systems
trying to reboot from KDB.

- Add a new PLATFORM_RESET() method to the platform KOBJ interface, and
  migrate existing reset functions into platform modules.
- Modify the OF_reboot() routine to submit the request by hand to avoid
  the IPIs involved in the regular openfirmware() routine. This fixes
  reboot from KDB on SMP machines.
- Move non-KDB reset and poweroff functions on the Powermac platform
  into the relevant power control drivers (cuda, pmu, smu), instead of
  using them through the Open Firmware backdoor.
- Rename platform_chrp to platform_powermac since it has become
  increasingly Powermac specific. When we gain support for IBM systems,
  we will grow a new platform_chrp.
2010-08-31 15:27:46 +00:00