Commit Graph

163938 Commits

Author SHA1 Message Date
Justin T. Gibbs
283d6f7287 Monitor and emit events for XenStore changes to XenBus trees
of the devices we manage.  These changes can be due to writes
we make ourselves or due to changes made by the control domain.
The goal of these changes is to insure that all state transitions
can be detected regardless of their source and to allow common
device policies (e.g. "onlined" backend devices) to be centralized
in the XenBus bus code.

sys/xen/xenbus/xenbusvar.h:
sys/xen/xenbus/xenbus.c:
sys/xen/xenbus/xenbus_if.m:
	Add a new method for XenBus drivers "localend_changed".
	This method is invoked whenever a write is detected to
	a device's XenBus tree.  The default implementation of
	this method is a no-op.

sys/xen/xenbus/xenbus_if.m:
sys/dev/xen/netfront/netfront.c:
sys/dev/xen/blkfront/blkfront.c:
sys/dev/xen/blkback/blkback.c:
	Change the signature of the "otherend_changed" method.
	This notification cannot fail, so it should return void.

sys/xen/xenbus/xenbusb_back.c:
	Add "online" device handling to the XenBus Back Bus
	support code.  An online backend device remains active
	after a front-end detaches as a reconnect is expected
	to occur in the near future.

sys/xen/interface/io/xenbus.h:
	Add comment block further explaining the meaning and
	driver responsibilities associated with the XenBus
	Closed state.

sys/xen/xenbus/xenbusb.c:
sys/xen/xenbus/xenbusb.h:
sys/xen/xenbus/xenbusb_back.c:
sys/xen/xenbus/xenbusb_front.c:
sys/xen/xenbus/xenbusb_if.m:
	o Register a XenStore watch against the local XenBus tree
	  for all devices.
	o Cache the string length of the path to our local tree.
	o Allow the xenbus front and back drivers to hook/filter both
	  local and otherend watch processing.
	o Update the device ivar version of "state" when we detect
	  a XenStore update of that node.

sys/dev/xen/control/control.c:
sys/xen/xenbus/xenbus.c:
sys/xen/xenbus/xenbusb.c:
sys/xen/xenbus/xenbusb.h:
sys/xen/xenbus/xenbusvar.h:
sys/xen/xenstore/xenstorevar.h:
	Allow clients of the XenStore watch mechanism to attach
	a single uintptr_t worth of client data to the watch.
	This removes the need to carefully place client watch
	data within enclosing objects so that a cast or offsetof
	calculation can be used to convert from watch to enclosing
	object.

Sponsored by:	Spectra Logic Corporation
MFC after:	1 week
2011-06-11 04:59:01 +00:00
Navdeep Parhar
df262243ac Add "context" subcommand to fetch and display SGE context. 2011-06-11 04:55:15 +00:00
Navdeep Parhar
59bc8ce035 - driver ioctl to get SGE context for any given queue.
- sysctls to display the context id, cidx, and pidx of all kinds of queues.

MFC after:	3 days
2011-06-11 04:50:54 +00:00
Hiroki Sato
729d2abb51 Support SIGHUP for reloading /etc/rtadvd.conf. 2011-06-11 03:25:10 +00:00
Marcel Moolenaar
52737ec557 Add the model number for the Montvale processor (marketed as Itanium 2 9100).
At this time we're missing just one: Tukwila (Itanium 2 9300).
2011-06-11 02:22:11 +00:00
Xin LI
97ae66672f Add comments about the validation. 2011-06-11 01:19:19 +00:00
Jeff Roberson
280e091a99 Implement fully asynchronous partial truncation with softupdates journaling
to resolve errors which can cause corruption on recovery with the old
synchronous mechanism.

 - Append partial truncation freework structures to indirdeps while
   truncation is proceeding.  These prevent new block pointers from
   becoming valid until truncation completes and serialize truncations.
 - On completion of a partial truncate journal work waits for zeroed
   pointers to hit indirects.
 - softdep_journal_freeblocks() handles last frag allocation and last
   block zeroing.
 - vtruncbuf/ffs_page_remove moved into softdep_*_freeblocks() so it
   is only implemented in one place.
 - Block allocation failure handling moved up one level so it does not
   proceed with buf locks held.  This permits us to do more extensive
   reclaims when filesystem space is exhausted.
 - softdep_sync_metadata() is broken into two parts, the first executes
   once at the start of ffs_syncvnode() and flushes truncations and
   inode dependencies.  The second is called on each locked buf.  This
   eliminates excessive looping and rollbacks.
 - Improve the mechanism in process_worklist_item() that handles
   acquiring vnode locks for handle_workitem_remove() so that it works
   more generally and does not loop excessively over the same worklist
   items on each call.
 - Don't corrupt directories by zeroing the tail in fsck.  This is only
   done for regular files.
 - Push a fsync complete record for files that need it so the checker
   knows a truncation in the journal is no longer valid.

Discussed with:	mckusick, kib (ffs_pages_remove and ffs_truncate parts)
Tested by:	pho
2011-06-10 22:48:35 +00:00
Jilles Tjoelker
1a62d8843d sh: Do parameter expansion on ENV before using it.
This is required by POSIX, and allows things like ENV=\$HOME/.shrc.

Note that tilde expansion is explicitly not performed.
2011-06-10 22:42:00 +00:00
Jeff Roberson
e4a06afe93 - Eliminate an incorrect include path from the mthca build. 2011-06-10 22:38:31 +00:00
Jeff Roberson
e84fa3ba71 - Add support for referencing quota structures without needing the inode
pointer for softupdates.

Submitted by:	mckusick
2011-06-10 22:19:44 +00:00
Jeff Roberson
5aa336ed20 - If the fsync in ufs_direnter fails SUJ can later panic because we have
partially added a name.  Allow ufs_direnter() to continue in the
   hopes that it is a transient error.  If it is not, the directory
   is corrupted already from IO errors and writing this new block
   is not likely to make things worse.
2011-06-10 22:18:25 +00:00
Jeff Roberson
6f59b2bd33 - When printing bufs with show buf the lblkno is often more useful than
the blkno.  Print them both.
2011-06-10 22:15:36 +00:00
Justin T. Gibbs
e1f3ca6edc Include sys/xen in cscope tag file generation. 2011-06-10 20:51:41 +00:00
Attilio Rao
1bd320ec51 - Fix races on detach handling of AAC_IFFLAGS_* mask
- Fix races on setting AAC_AIFFLAGS_ALLOCFIBS
- Remove some unused AAC_IFFLAGS_* bits.
  Please note that the kthread still makes a difference between the
  total mask and AAC_AIFFLAGS_ALLOCFIBS because more flags may be
  added in the future to aifflags.

Sponsored by:			Sandvine Incorporated
Reported and reviewed by:	emaste
MFC after:			2 weeks
2011-06-10 20:23:56 +00:00
Justin T. Gibbs
1c3bf59584 Remove C constructs that are incompatible with C++ from various
OpenSolaris and ZFS header files.  These changes are sufficient
to allow a C++ program to use the libzfs library.

Note: The majority of these files already included 'extern "C"'
      declarations, so the intention of providing C++ compatibility
      already existed even if it wasn't provided.

cddl/compat/opensolaris/include/assert.h:
	Wrap our compatibility assert implementation in
	'extern "C"'.  Since this is a compatibility header
	I matched the Solaris style of doing this explicitly
	rather than rely on FreeBSD's __BEGIN/END_DECLS macro.

sys/cddl/compat/opensolaris/sys/kstat.h:
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/arc.h:
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dsl_pool.h:
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/ddt.h:
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/spa.h:
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zio.h:
	Rename parameters in function declarations that conflict
	with C++ keywords.  This was the solution preferred by
	members of the Illumos community.

sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_ioctl.h:
	In C, nested structures are visible in the global namespace,
	but in C++, they take on the namespace of the structure in
	which they are contained.  Flatten nested structure
	definitions within struct zfs_cmd so these structures are
	visible in the global namespace when compiled in both
	languages.

Sponsored by:	 Spectra Logic Corporation
2011-06-10 20:10:30 +00:00
Bernhard Schmidt
19da774130 Make sure to drop the IEEE80211_RATE_BASIC flag even for MCS rates.
Reported by:	Maciej Milewski <milu at dat dot pl>
Tested by:	Maciej Milewski <milu at dat dot pl>
2011-06-10 17:06:25 +00:00
Jilles Tjoelker
4ae95455e0 skel/.shrc: Improve commented CDPATH example for POSIX requirements.
POSIX says an empty entry in CDPATH shall not result in the new directory
being printed, while any non-empty entry shall result in the new directory
being printed, including ".". Therefore, the value of CDPATH should almost
always start with a colon, not dot and colon.

Our sh does not print the name for empty entries as well as "." entries.

MFC after:	1 week
2011-06-10 13:47:11 +00:00
John Baldwin
a49dcb469c Fix some off-by-one errors with the ending address of candidate regions
when attempting to grow a window.
2011-06-10 13:24:56 +00:00
John Baldwin
049dc0d1ff Implement BUS_ADJUST_RESOURCE() for the x86 drivers that sit between the
Host-PCI bridge drivers and nexus.
2011-06-10 12:30:16 +00:00
Craig Rodrigues
78315071f5 Obtain bswap64() function implementation from
version 1.3 of src/common/lib/libc/gen/bswap64.c in NetBSD.

Obtained from: NetBSD
2011-06-10 01:13:15 +00:00
Jilles Tjoelker
292e667663 sh: Do parameter expansion before printing PS4 (set -x).
The function name expandstr() and the general idea of doing this kind of
expansion by treating the text as a here document without end marker is from
dash.

All variants of parameter expansion and arithmetic expansion also work (the
latter is not required by POSIX but it does not take extra code and many
other shells also allow it).

Command substitution is prevented because I think it causes too much code to
be re-entered (for example creating an unbounded recursion of trace lines).

Unfortunately, our LINENO is somewhat crude, otherwise PS4='$LINENO+ ' would
be quite useful.
2011-06-09 23:12:23 +00:00
Xin LI
b24bfc5ae8 MFV: Update to less v444.
MFC after:	2 weeks
2011-06-09 22:52:57 +00:00
Xin LI
5b2db585ea Vendor import of less v444. 2011-06-09 22:50:10 +00:00
Navdeep Parhar
8a6a6922d9 cxgbetool: a tool for the cxgbe(4) driver. 2011-06-09 20:21:45 +00:00
Bjoern A. Zeeb
375c46563c Contrary to when returning in all-good cases at the end of functions we
did not free memory (1) or close the file descriptor (2) in error cases.

Reported by:	Mark Johnston (1)
Reported by:	attilio (2)
Reviewed by:	jhb
Sponsored by:	Sandvine Incorporated
MFC after:	1 week
2011-06-09 19:52:28 +00:00
Nathan Whitehorn
b9856e92ac Add -Wa,-many to CFLAGS on PowerPC. This aids in building a kernel using
clang, which would otherwise complain about some 64-bit bridge mode
instructions.
2011-06-09 19:47:30 +00:00
Alexander Motin
0eac2d6be3 Intel NM10 chipset's SATA controller has same PCI ID and revision as ICH7's,
but has only 2 SATA ports instead of 4. The worst part is that SStatus and
SError registers for missing ports are not implemented and return wrong
values (0xffffffff), that caused infinite reset loop.

Just ignore that SError value while I found no better way to identify them.
2011-06-09 16:30:13 +00:00
Doug Barton
3f6c8f3765 Minor typo, fix 2 attributions 2011-06-09 06:10:39 +00:00
Jung-uk Kim
bc8e4ad2ef Tidy up r222866.
- Re-add accidentally removed atomic op. for sysctl(9) handler.
- Remove a period(`.') at the end of a debugging message.
- Consistently spell "low" for "TSC-low" timecounter throughout.

Pointed out by:	bde
2011-06-08 23:44:59 +00:00
Kenneth D. Merry
b4775b4c1d Add dump.c to the rtsol build. It is needed now that sec2str is non-static
and used in rtsold.c.
2011-06-08 21:59:07 +00:00
Jilles Tjoelker
725cc7854e sh: Add simple tests for set -x and PS4. 2011-06-08 21:58:19 +00:00
David E. O'Brien
9fe1fe8204 Simply post r222273. 2011-06-08 21:29:33 +00:00
David Christensen
76dbe6498b - Major reorganization of mbuf handling throughout the driver to
increase robustness (no more calls to panic(9)) and simplify
  code.
- Allocate RX/TX data structures as a single buffer rather than
  an array of 4KB pages to simplify code.
- Fixed LRO (aka TPA) code.  Removed kernel module parameter and
  support enabling disabling LRO through ifconfig(8) command line.
  LRO is still disabled by default but should be enabled for best
  performance on an endpoint device.
- Fixed statistcs code and removed kernel module parameter (stats
  should just work).
- Added many software counters to help identify the cause of some
  performance issues.
- Streamlined adapter internal init/stop code paths.
- Fiddled with debug code (adding some here, removing some there).
- Continued style(9) adjustments.
2011-06-08 21:18:14 +00:00
Jung-uk Kim
26e6537a73 Increase quality of TSC (or TSC-low) timecounter to 1000 if it is P-state
invariant.  For SMP case (TSC-low), it also has to pass SMP synchronization
test and the CPU vendor/model has to be white-listed explicitly.  Currently,
all Intel CPUs and single-socket AMD Family 15h processors are listed here.

Discussed with:	hackers
2011-06-08 20:08:06 +00:00
Jung-uk Kim
95f2f0985b Introduce low-resolution TSC timecounter "TSC-low". It replaces the normal
TSC timecounter if TSC frequency is higher than ~4.29 MHz (or 2^32-1 Hz) or
multiple CPUs are present.  The "TSC-low" frequency is always lower than a
preset maximum value and derived from TSC frequency (by being halved until
it becomes lower than the maximum).  Note the maximum value for SMP case is
significantly lower than UP case because we want to reduce (rare but known)
"temporal anomalies" caused by non-serialized RDTSC instruction.  Normally,
it is still higher than "ACPI-fast" timecounter frequency (which was default
timecounter hardware for long time until r222222) to be useful.
2011-06-08 19:38:31 +00:00
Attilio Rao
e3adb68519 In the current code, a double panic condition may lead to dumps
interleaving.
Signal dumping to happen only for the first panic which should be the
most important.

Sponsored by:	Sandvine Incorporated
Submitted by:	Nima Misaghian (nmisaghian AT sandvine DOT com)
MFC after:	2 weeks
2011-06-08 19:28:59 +00:00
Jung-uk Kim
75aa1914d5 Remove a redundant assignment since r221703. 2011-06-08 18:52:42 +00:00
Hiroki Sato
06056832ec - Accumulate RA options instead of replacing old ones when a new RA arrived.
RFC 4861 6.3.4 clearly defines handling multiple RAs in this way.

- RDNSS/DNSSL options from multiple RAs on a single link will be
  gathered and sent to resolvconf(8).

- Call "resolvconf -d" only after at least one RDNSS or DNSSL option is
  received and then all of them are expired.

- The rtsold.dump output now supports displaying a list of the RA options.

- Use more human-readable expression for logging values of struct timeval.

Discussed with:	ume
2011-06-08 16:03:29 +00:00
Andreas Tobler
d91c258074 - Improve error handling.
- Add retry loops in the i2c read/write functions.
- Combied the ADC channel selection and readout of the value into
  one iicbus_transfer to avoid possible races.

Reviewed by: nwhitehorn
2011-06-08 16:00:30 +00:00
Nathan Whitehorn
f33b8de1dc Compile RTLD with global dot symbols on 64-bit PowerPC, as a crutch for
GDB's ability to locate r_debug_state (which is actually the only function
that need be compiled this way).
2011-06-08 13:23:35 +00:00
Bjoern A. Zeeb
869052041d Add the missing call to ip6_ipsec_filtertunnel() to be able to control
whether decapsulated IPsec packets will be passed to pfil again depending
on the setting of the net.ip6.ipsec6.filtertunnel sysctl.

PR:		kern/157670
Submitted by:	Manuel Kasper (mk neon1.net)
MFC after:	2 weeks
2011-06-08 10:59:36 +00:00
Ruslan Ermilov
0b545d875b Added FreeBSD 8.3. 2011-06-08 08:16:32 +00:00
Andriy Gapon
234dab4a82 remove code for dynamic offlining/onlining of CPUs on x86
The code has definitely been broken for SCHED_ULE, which is a default
scheduler.  It may have been broken for SCHED_4BSD in more subtle ways,
e.g. with manually configured CPU affinities and for interrupt devilery
purposes.
We still provide a way to disable individual CPUs or all hyperthreading
"twin" CPUs before SMP startup.  See the UPDATING entry for details.

Interaction between building CPU topology and disabling CPUs still
remains fuzzy: topology is first built using all availble CPUs and then
the disabled CPUs should be "subtracted" from it.  That doesn't work
well if the resulting topology becomes non-uniform.

This work is done in cooperation with Attilio Rao who in addition to
reviewing also provided parts of code.

PR:		kern/145385
Discussed with:	gcooper, ambrisko, mdf, sbruno
Reviewed by:	attilio
Tested by:	pho, pluknet
X-MFC after:	never
2011-06-08 08:12:15 +00:00
Ruslan Ermilov
c8c215e682 Pull up all vendor changes to mdoc(7).
This also replaces the local fix in r219209 that made .Ac emit
ASCII angle quotes with an official fix.  In the official fix,
ASCII quotes are output when using the .Aq, .Ao and .Ac calls,
but only when nested into the .An macro.

PR:		gnu/154822
2011-06-08 08:08:42 +00:00
Hiroki Sato
b4da9fbccd - Disable "resolvconf -d" temporarily to avoid extra invocations of the script
under a certain condition.
- Fix argv handling.

Spotted by:	ume
2011-06-08 04:06:56 +00:00
Bjoern A. Zeeb
ffe8cd7b10 Correct comments and debug logging in ipsec to better match reality.
MFC after:	3 days
2011-06-08 03:02:11 +00:00
Xin LI
df6a289e76 Use .Dq instead of hardcoding `` and ''.
Suggested by:	gjb
2011-06-08 00:31:10 +00:00
Marius Strobl
ab267f9dbf - For the case when tl1_align(_trap) is used to call rsf_fatal via
RSF_FATAL we need to switch to alternate globals for KSTACK_CHECK just
  like tl1_data_excptn(_trap) does. This is more or less cosmetic because
  in case RSF_FATAL is called we're already heading south.
- Correct an END().
- Read the window state from the correct register for a CATR().
2011-06-07 23:15:21 +00:00
Martin Matuska
baa256da8c Silence notice on pool creation, import and access.
Suggested by:	Jeremy Chadwick (freebsd-stable@)
Discussed with:	pjd
MFC after:	1 week
2011-06-07 20:46:31 +00:00
Marko Zec
2fe7ca2ca6 Set curvnet context in a callout-trigerred code path.
MFC after:	3 days
2011-06-07 20:46:03 +00:00