Commit Graph

198697 Commits

Author SHA1 Message Date
Ian Lepore
ecaecbc7d8 Make simplebus a base class of ofwbus. This allows the elimination of
duplicated code in the two classes, and also allows devices in FDT-based
systems to declare simplebus as their parent and still work correctly
when the FDT data describes the device at the root of the tree rather
than as a child of a simplebus (which is common for interrupt, clock,
and power controllers).

Differential Revision:	https://reviews.freebsd.org/D1990
Submitted by:	Michal Meloun
2015-03-27 23:10:15 +00:00
Warner Losh
8465cb4016 Revert the __ALWAYS_NO stuff. It had already been committed as BROKEN. 2015-03-27 21:47:15 +00:00
Ed Maste
acf33b5c74 lldb: Move debug register output into __amd64__
This debug register diagnostic is really only applicable to amd64 at
present.

Sponsored by:	The FreeBSD Foundation
2015-03-27 19:42:38 +00:00
Ed Maste
cbfe0ae64b crunchide: arm64 support
Submitted by:	andrew@
Sponsored by:	The FreeBSD Foundation
2015-03-27 19:34:24 +00:00
Hans Petter Selasky
8de7453501 Fix variable casting:
- Jiffies or ticks in FreeBSD have integer type and are not long.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2015-03-27 19:08:11 +00:00
Xin LI
11500c4eaa Fix remaining warnings.
MFC after:	2 weeks
2015-03-27 18:23:06 +00:00
Warner Losh
cd9142c718 Add a note of clarification. MK_* variables only control what modules
are built by default. You can still override that with MODULES_EXTRA
for experimental features like ZFS and dtrace on some
architectures. Also note that kernel config files are not affected by
MK_ options listed, though some targets might be.
2015-03-27 17:36:22 +00:00
Christian Brueffer
a06c511716 Mention support for 16h family processors, added in r263169.
PR:		198933
Submitted by:	isoa@kapsi.fi
MFC after:	1 week
2015-03-27 17:15:17 +00:00
Hans Petter Selasky
932493ff29 Fixes for the LinuxAPI completion wrappers:
- make sure the timeout computations are always above zero by using
the existing "linux_timer_jiffies_until()" function. Negative timeouts
can result in undefined behaviour.
- declare all completion functions like external symbols and move the
code to the LinuxAPI kernel module.
- add a proper prefix to all LinuxAPI kernel functions to avoid
namespace collision with other parts of the FreeBSD kernel.
- clean up header file inclusions in the linux/completion.h, linux/in.h
and linux/fs.h header files.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2015-03-27 16:16:23 +00:00
Konstantin Belousov
9928931186 Fix build (with gcc).
Reported by:	bz, ian
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2015-03-27 15:49:21 +00:00
Ed Maste
d96a61e42b Remove ALPHA leftover 2015-03-27 14:40:58 +00:00
Konstantin Belousov
4af9f77ecb Fix the hand after the immediate reboot when the following command
sequence is performed on UFS SU+J rootfs:
cp -Rp /sbin/init /sbin/init.old
mv -f /sbin/init.old /sbin/init

Hang occurs on the rootfs unmount.  There are two issues:

1. Removed init binary, which is still mapped, creates a reference to
the removed vnode. The inodeblock for such vnode must have active
inodedep, which is (eventually) linked through the unlinked list. This
means that ffs_sync(MNT_SUSPEND) cannot succeed, because number of
softdep workitems for the mp is always > 0.  FFS is suspended during
unmount, so unmount just hangs.

2. As noted above, the inodedep is linked eventually.  It is not
linked until the superblock is written.  But at the vfs_unmountall()
time, when the rootfs is unmounted, the call is made to
ffs_unmount()->ffs_sync() before vflush(), and ffs_sync() only calls
ffs_sbupdate() after all workitems are flushed.  It is masked for
normal system operations, because syncer works in parallel and
eventually flushes superblock.  Syncer is stopped when rootfs
unmounted, so ffs_sync() must do sb update on its own.

Correct the issues listed above. For MNT_SUSPEND, count the number of
linked unlinked inodedeps (this is not a typo) and substract the count
of such workitems from the total. For the second issue, the
ffs_sbupdate() is called right after device sync in ffs_sync() loop.

There is third problem, occuring with both SU and SU+J. The
softdep_waitidle() loop, which waits for softdep_flush() thread to
clear the worklist, only waits 20ms max. It seems that the 1 tick,
specified for msleep(9), was a typo.

Add fsync(devvp, MNT_WAIT) call to softdep_waitidle(), which seems to
significantly help the softdep thread, and change the MNT_LAZY update
at the reboot time to MNT_WAIT for similar reasons.  Note that
userspace cannot create more work while devvp is flushed, since the
mount point is always suspended before the call to softdep_waitidle()
in unmount or remount path.

PR:	195458
In collaboration with:	gjb, pho
Reviewed by:	mckusick
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2015-03-27 13:55:56 +00:00
Fabien Thomas
d612b95e23 On multi CPU systems, we may emit successive packets with the same id.
Fix the race by using an atomic operation.

Differential Revision:	https://reviews.freebsd.org/D2141
Obtained from:	emeric.poupon@stormshield.eu
MFC after:	1 week
Sponsored by:	Stormshield
2015-03-27 13:26:59 +00:00
Alexander Motin
5d85cd2d11 Remove extra semicolon.
MFC after:	1 week
2015-03-27 12:45:20 +00:00
Alexander Motin
3ab0187add Remove request sorting from GEOM_MIRROR and GEOM_RAID.
When CPU is not busy, those queues are typically empty.  When CPU is busy,
then one more extra sorting is the last thing it needs.  If specific device
(HDD) really needs sorting, then it will be done later by CAM.

This supposed to fix livelock reported for mirror of two SSDs, when UFS
fires zillion of BIO_DELETE requests, that totally blocks I/O subsystem by
pointless sorting of requests and responses under single mutex lock.

MFC after:	2 weeks
2015-03-27 12:44:28 +00:00
Alexander Motin
41fe4ba647 Fix bug on memory allocation error in split method.
While there, use bioq_takefirst() in place where it is convenient.

MFC after:	1 week
2015-03-27 11:14:12 +00:00
Bjoern A. Zeeb
0ede88a413 Rather than defining our own magic checks here use INKERNEL() for
the PMC_IN_KERNEL() macro definition.

Add missing macros to extract the return address (LR) from the trapframe.

Discussed with:	andrew
Obtained from:	Cambridge/L41
Sponsored by:	DARPA, AFRL
MFC after:	2 weeks
2015-03-27 08:47:16 +00:00
Warner Losh
e2b58d84c7 sym and cxgb build on arm, add them to the build.
Differential Revision: https://reviews.freebsd.org/D514
2015-03-27 02:35:33 +00:00
Warner Losh
0c46f3f950 Categorize certain kernel builds as being broken in certain places.
Differential Revision: https://reviews.freebsd.org/D2011
2015-03-27 02:35:25 +00:00
Warner Losh
3fe1e58de1 Add support for specifying unsupported / broken options that override
any defaults or user specified actions on the command line. This would
be useful for specifying features that are always broken or that
cannot make sense on a specific architecture, like ACPI on pc98 or
EISA on !i386 (!x86 usage of EISA is broken and there's no supported
hardware that could have it in any event). Any items in
__ALWAYS_NO_OPTIONS are forced to "no" regardless of other settings.

Differential Revision: https://reviews.freebsd.org/D2011
2015-03-27 02:35:11 +00:00
Pedro F. Giffuni
2b092a1664 Fix __size_alloc()
Use underscore for the attributes name: this should fix the use of the
attributes in macros for lint(1).

Suggested by:	bde

X-MFC with:	r280700
2015-03-27 02:01:22 +00:00
Peter Grehan
fed2d5edfc Move legacy interrupt allocation for virtio devices to common code.
There are a number of assumptions about legacy interrupts always
being available in virtio so don't allow back-ends to make the
decision to support them.

This fixes the issue seen with virtio-rnd on OpenBSD. MSI-x vectors
were not being used, and the virtio-rnd backend wasn't allocating a
legacy interrupt resulting in a bhyve assert and guest exit.

Reported by:	Julian Hsiao, madoka at nyanisore dot net
Reviewed by:	neel
MFC after:	1 week
2015-03-27 01:58:44 +00:00
John Baldwin
d2077b4e57 Allow additional flags to be passed to netstat -i in the daily status check.
In particular, this allows an administrator to specify "-h" for human
readable output if that is preferred.

The default setting passes "-d", so that can be excluded by using a custom
setting.

Differential Revision:	https://reviews.freebsd.org/D2034
Submitted by:	Lystopad Aleksandr <laa@laa.zp.ua>
		(patch to add option for -h)
Reviewed by:	bz
MFC after:	1 week
2015-03-27 00:37:41 +00:00
Andrey V. Elsukov
a4b65afcab Fix a possible mbuf leak on interface departure.
Reported by:	Alexandre Martins
2015-03-26 23:40:22 +00:00
Craig Rodrigues
5ab58881db Add --sysroot to the compiler flags for clang or gcc external toolchains
Before this fix, --sysroot was only added to the compiler flags if a clang
external toolchain was used.

Reviewed by:   imp
2015-03-26 23:37:03 +00:00
Xin LI
16945d8950 - Correct type for checkAgainst.
- Staticify flags that are not used outside the file scope.

PR:		bin/193471
Submitted by:	Robert Sprowson <webpages sprow.co.uk>
MFC after:	2 weeks
2015-03-26 22:34:27 +00:00
Michael Tuexen
d59909c3e2 Improve the selection of the destination address of SACK chunks.
This fixes
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196755
and is joint work with rrs@.

MFC after: 1 week
2015-03-26 22:05:31 +00:00
Jilles Tjoelker
73cc817ec8 setmode(): Use sysctl kern.proc.umask instead of umask() if possible.
The kern.proc.umask.<pid> sysctl allows querying the umask without
temporarily modifying it.
2015-03-26 21:58:06 +00:00
Ian Lepore
84233ddb80 New pmap code for armv6. Disabled by default, option ARM_NEW_PMAP enables it.
This is pretty much a complete rewrite based on the existing i386 code.  The
patches have been circulating for a couple years and have been looked at by
plenty of people, but I'm not putting anybody on the hook as having reviewed
this in any formal sense except myself.

After this has gotten wider testing from the user community, ARM_NEW_PMAP
will become the default and various dregs of the old pmap code will be
removed.

Submitted by:	Svatopluk Kraus <onwahe@gmail.com>,
	  	Michal Meloun <meloun@miracle.cz>
2015-03-26 21:13:53 +00:00
Andrew Turner
147b9d0418 Add more arm64 machine dependent headers. With this we now have the minimum
set of machine headers needed to build the userland toolchain.

Differential Revision:	https://reviews.freebsd.org/D2148
Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
2015-03-26 21:10:42 +00:00
Randall Stewart
eddf5d5698 Per Gleb, add the pmcstudy.1.gz which was moved to pmcstudy.8.gz 2015-03-26 20:08:25 +00:00
Ian Lepore
16b2a62ec4 Use pmap_mapdev()/unmapdev() to temporarily map on-chip sram while copying
the startup trampoline code.  The old code allocated a kva page, mapped it
using using pmap_kenter_nocache(), then freed the kva without destroying
the mapping.  This is the only use of pmap_kenter_nocache() in the system,
so redoing this one use of allows it to be garbage collected in the
near future.
2015-03-26 19:33:07 +00:00
Navdeep Parhar
70ca622987 cxgbe(4): provide the exact RSS hash type instead of a catch-all value
to the upper layers.
2015-03-26 18:45:51 +00:00
Andrew Turner
305d71de6e Also define DWARF_FRAME_REGISTERS. This is used to size arrays, without
this exceptions could write over the stack.

Sponsored by:	The FreeBSD Foundation
2015-03-26 18:25:53 +00:00
Alexander Motin
3398491b2f Make swapper release orphaned (lost) GEOM provider.
Swap device is still reported as enabled, and system still may crash later
if some swapped-out kernel pages were lost with the device, but at least
GEOM and CAM can now release the lost disk, allowing it to be reconnected.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2015-03-26 17:21:12 +00:00
Kristof Provost
09a3b0db35 Clarify the ministat default width
The man page states that:
'-w width    Width of ASCII-art plot in characters, default is 74.'

This is not entirely correct. The mini-help is more accurate:
'-w : width of graph/test output (default 74 or terminal width)'

In other words: the man page fails to explain that ministat will default
to the terminal width, not 74. It will only fall back to 74 if stdout is
not a TTY.

Submitted by:	Ben Hutchings <ben@decadent.org.uk>
Approved by:	philip (mentor)
2015-03-26 17:13:11 +00:00
Pedro F. Giffuni
8c2f8a839f Introduce some allocation function attributes.
Bring support for two gcc function attributes that are likely to be used
in our system headers:

__alloc_size
The alloc_size attribute is used to tell the compiler that the function
return value points to memory, where the size is given by one or two of
the functions parameters.

__result_use_check
Causes a warning to be emitted if a caller of the function with this
attribute does not use its return value. This is known in gcc as
"warn_unused_result" but we considered the original naming unsuitable
for an attribute.

The __alloc_size attribute required some workarounds for lint(1).
Both attributes are supported by clang.

Also see: D2107

MFC after:	3 days
2015-03-26 16:00:35 +00:00
Christian Brueffer
4d9b9e1c9b Rough first mdoc, spelling and grammar cleanup pass. 2015-03-26 15:54:54 +00:00
Randall Stewart
907b0aadc4 Opps its section 8 not 1 silly.
MFC after:	3 days
Sponsored by:	Netflix
2015-03-26 15:43:57 +00:00
Randall Stewart
4d9bf2038f Update the manual page to be a bit more sane. It still
may need some work, but at least now it will read properly.
(gnn you are still on the hook to help out with this
like you committed).

Sponsored by:	Netflix.
2015-03-26 15:40:47 +00:00
Kristof Provost
0a8343d787 Add myself (kp) to committers-src.dot
Approved by:	philip (mentor)
2015-03-26 15:27:38 +00:00
Justin Hibbits
4be7e5f8fb Make several modules unconditionally built, there's no need for them to be
hidden.

These modules pass a tinderbox build.
Discussed with:	ian and others
MFC after:	1 month
2015-03-26 14:55:22 +00:00
Ruslan Bukin
0276459325 Add 64 byte linesize cache flushing routines for L1 instruction, L1 data
and L2 data caches.

Sponsored by:	HEIF5
2015-03-26 14:51:24 +00:00
Sergey Kandaurov
a4879be402 Static'ize pf_fillup_fragment body to match its declaration.
Missed in 278925.
2015-03-26 13:31:04 +00:00
Glen Barber
a3ea67c7f9 Remove duplicate AH_DEBUG_ALQ option.
Sponsored by:	The FreeBSD Foundation
2015-03-26 12:58:30 +00:00
Ruslan Ermilov
532ef888bd Corrected descriptions of net.inet.icmp.icmplim and icmplim_output.
Reviewed by:	pluknet
2015-03-26 12:52:21 +00:00
Alexander Motin
5523c82c1a Make GEOM_PART work in presence of previous withered self.
MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2015-03-26 12:17:47 +00:00
Alexander Motin
2f36085dcf Report withered providers as such alike to GEOMs.
MFC after:	2 weeks
2015-03-26 11:19:24 +00:00
Alexander Motin
ba772028db When searching for provider by name, prefer non-withered one.
MFC after:	2 weeks
2015-03-26 11:02:29 +00:00
Kevin Lo
cf7f8a9de8 Print size_t's with %zu rather than "%zd.
Reviewed by:	bde
2015-03-26 09:13:16 +00:00