Commit Graph

236472 Commits

Author SHA1 Message Date
alc
4343dadb9e The function vm_page_cache() no longer exists. Remove its man page. 2016-11-27 01:44:31 +00:00
alc
d95f7c7503 Recursion on the free page queue mutex occurred when UMA needed to allocate
a new page of radix trie nodes to complete a vm_radix_insert() operation
that was requested by vm_page_cache().  Specifically, vm_page_cache()
already held the free page queue lock when UMA tried to acquire it through
a call to vm_page_alloc().  This code path no longer exists, so there is no
longer any reason to allow recursion on the free page queue mutex.

Improve nearby comments.

Reviewed by:	kib, markj
Tested by:	pho
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D8628
2016-11-27 01:42:53 +00:00
landonf
7fa254ea43 bhnd(4): Unify NVRAM/SPROM parsing, implement compact SPROM layout encoding.
- Defined an abstract NVRAM I/O API (bhnd_nvram_io), decoupling NVRAM/SPROM
  parsing from the actual underlying NVRAM data provider (e.g. CFE firmware
  devices).
- Defined an abstract NVRAM data API (bhnd_nvram_data), decoupling
  higher-level NVRAM operations (indexed lookup, data conversion, etc) from
  the underlying NVRAM file format parsing/serialization.
- Implemented a new high-level bhnd_nvram_store API, providing indexed
  variable lookup, pending write tracking, etc on top of an arbitrary
  bhnd_nvram_data instance.
- Migrated all bhnd(4) NVRAM device drivers to the common bhnd_nvram_store
  API.
- Implemented a common bhnd_nvram_val API for parsing/encoding NVRAM
  variable values, including applying format-specific behavior when
  converting to/from the NVRAM string representations.
- Dropped the now unnecessary bhnd_nvram driver, and moved the
  broadcom/mips-specific CFE NVRAM driver out into sys/mips/broadcom.
- Implemented a new nvram_map file format:
        - Variable definitions are now defined separately from the SPROM
          layout. This will also allow us to define CIS tuple NVRAM
          mappings referencing the common NVRAM variable definitions.
        - Variables can now be defined within arbitrary named groups.
        - Textual descriptions and help information can be defined inline
          for both variables and variable groups.
        - Implemented a new, compact encoding of SPROM image layout
          offsets.
- Source-level (but not build system) support for building the NVRAM file
  format APIs (bhnd_nvram_io, bhnd_nvram_data, bhnd_nvram_store) as a
  userspace library.

The new compact SPROM image layout encoding is loosely modeled on Apple
dyld compressed LINKEDIT symbol binding opcodes; it provides a compact
state-machine encoding of the mapping between NVRAM variables and the SPROM
image offset, mask, and shift instructions necessary to decode or encode
the SPROM variable data.

The compact encoding reduces the size of the generated SPROM layout data
from roughly 60KB to 3KB. The sequential nature SPROM layout opcode tables
also simplify iteration of the SPROM variables, as it's no longer
neccessary to iterate the full NVRAM variable definition table, but
instead simply scan the SPROM revision's layout opcode table.

Approved by:    adrian (mentor)
Differential Revision:  https://reviews.freebsd.org/D8645
2016-11-26 23:22:32 +00:00
scottl
bbc0a0af06 Add a missing header 2016-11-26 23:15:11 +00:00
markj
e06021a945 Launder VPO_NOSYNC pages upon vnode deactivation.
As of r234483, vnode deactivation causes non-VPO_NOSYNC pages to be
laundered. This behaviour has two problems:

1. Dirty VPO_NOSYNC pages must be laundered before the vnode can be
   reclaimed, and this work may be unfairly deferred to the vnlru process
   or an unrelated application when the system is under vnode pressure.
2. Deactivation of a vnode with dirty VPO_NOSYNC pages requires a scan of
   the corresponding VM object's memq for non-VPO_NOSYNC dirty pages; if
   the laundry thread needs to launder pages from an unreferenced such
   vnode, it will reactivate and deactivate the vnode with each laundering,
   potentially resulting in a large number of expensive scans.

Therefore, ensure that all dirty pages are laundered upon deactivation,
i.e., when all maps of the vnode are removed and all references are
released.

Reviewed by:	alc, kib
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D8641
2016-11-26 21:00:27 +00:00
rmacklem
cd0a98592f Use November instead of the abbreviation.
Requested by:	Ed Shouten
MFC after:	2 weeks
2016-11-26 20:58:05 +00:00
rmacklem
bda815353f Document the -E flag for nfsstat.
This is a content change.

Reviewed by:	bcr
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D8626
2016-11-26 20:53:22 +00:00
rmacklem
074a46b743 Add a -E flag to nfsstat.c so that it prints out the NFSv4.1
procedure/operation counts.
It also avoids clipping the counts at 9 digits.

Reviewed by:	bcr (doc parts)
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D8626
2016-11-26 20:47:11 +00:00
avos
d245a2313b rsu: fix R92S_TXDW1_QSEL_H2C definition (0x1f -> 0x13).
Without this fix firmware ignores all but first 32 commands
(= almost everything (except plain Tx / Rx) stops working).

Tested with ASUS USB-N10.
2016-11-26 20:26:29 +00:00
ian
20c0c7da7b Add an ethernet0 alias pointing to the /aix/usb/hub/ethernet node. This
is required for u-boot to locate the ethernet node when it's doing fixup
of the mac-address property when the user has overridden the default addr.
2016-11-26 17:55:46 +00:00
bapt
7fc09585c4 initialize *nextp which could be left uninitialized in case the configuration
file cannot be open/read

Reported by:	Coverity via cem
MFC after:	2 days
CID:		1365665
2016-11-26 15:49:59 +00:00
sevan
d42b4777f9 Fix null dereference when running out of nodes during rename.
PR:		212370
Submitted by:	Sascha Wildner <swildner AT gmail>
Reviewed by:	bcr (mentor)
Approved by:	bapt
Obtained from:	NetBSD
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D8643
2016-11-26 13:26:29 +00:00
rakuco
52580478ad fdt: Expect strchr() to return a const char*
In C, strchr(3) returns a char*, whereas C++ defines two overloads:
* const char *strchr(const char*, int)
* char *strchr(char*, int)

Building fdt.cc (with the WITHOUT_GPL_DTC knob set) with libc++ 3.9.0 (imported
in r309124) was failing because libc++ r260377 added the first overload to
string.h, leading to failures such as:

    fdt.cc:1638:8: error: cannot initialize a variable of type 'char *' with an
    rvalue of type 'const char *'

Just define val as a const char* to fix it.

Upstreamed in https://github.com/davidchisnall/dtc/pull/14

Reviewed by:	emaste
Approved by:	emaste
2016-11-26 12:36:11 +00:00
manu
4815e2d7c8 PLL3 have a fractional mode where an explicit frequency (297Mhz or 270)
can be selected for it. If the desired frequency is one of those two, use
this mode instead of the integer one.
When calculating the PLL3 freq for the dotclock, check if it is a multiple
of the fracional frequencies.

MFC after:	2 weeks
2016-11-26 10:36:48 +00:00
kib
bdf404843c Fix automatic eventtimer hardware selection when ARAT
(APIC-Timer-always-running) is not implemented.

If machine has ncpus >= 8 and non-FSB interrupt routing from HPET,
default HPET eventtimer quality 450 is reduced by 100, i.e. it is
350. On the other hand, LAPIC default quality is 600 and it is reduced
by 200 if ARAT is not reported. We end up with HPET quality 350 <
LAPIC quality 400, despite ARAT is not set.  Then, since deep Cx
states are active by default, eventtimer fail.

E.g., on Nehalem Core i7 CPU and X58 chipset, LAPIC only works in
C0/C1/C1E and HPET does not implement FSB mode, which otherwise
requires manual switch to HPET to get working system.

Set LAPIC eventtimer quality to 100 if no ARAT.
While there, do not ignore deadlint TSC mode for LAPIC timer if ARAT
is not implemented.  If user manually selected LAPIC eventtimer on
such CPU, there is no reason to not use deadline if available and not
disabled administratively.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-11-26 10:33:53 +00:00
br
7cc1701c09 Don't build Ingenic kernels until we have non-static FDT support
for them.

Sponsored by:	DARPA, AFRL
2016-11-26 10:20:33 +00:00
ae
55a6c19d90 Fix ICMPv6 Time Exceeded error message translation.
Obtained from:	Yandex LLC
Sponsored by:	Yandex LLC
2016-11-26 10:04:05 +00:00
delphij
c878fdce23 style(9) indent changes, no actual code change.
MFC after:	2 weeks
2016-11-26 07:02:44 +00:00
pfg
e5c648e9d3 ext2: avoid possible overflow when calculating malloc size.
This is inspired on r308064 for case of reloading UFS.

MFC after:	1 week
2016-11-26 02:06:33 +00:00
emaste
908652f371 netipsec: fix build after 309144
Reported by:	rakuco
2016-11-26 00:59:01 +00:00
rmacklem
4a6ea51885 Stop "nfsstat -z" from clearing counts of NFSv4 state structures.
The "-z" option on nfsstats was erroneously zeroing out the counts
of NFSv4 state structures. These counts will normally go back down
to zero as state is released. When zeroed out by "-z", these counts
can go negative. This patch fixes this problem.

MFC after:	2 weeks
2016-11-25 23:28:09 +00:00
jhibbits
9d88d8c808 Add an isync to after mtsrin, required by the MPC750 errata
MPC750 User Manual Errata (rev 1) adds a note to C.4.2.2 noting that mtsr,
mtsrin, and mtmsr all require a isync after the instruction and before data
address translation uses any of the segment registers.  This should make FreeBSD
run correctly on the G3 again.

Reported by:	Mark Millard
MFC after:	1 week
2016-11-25 19:36:27 +00:00
emaste
665d4cde16 Use explicit 0x200000 instead of MAXPAGESIZE for the amd64 kernel physaddr
MAXPAGESIZE is not well defined by the GNU ld documentation.
Different linkers, and different versions of the same linker, use
different MAXPAGESIZE values. Current versions of GNU gold and LLVM's
lld use 4K. When set to 4K the kernel panics at boot due to an issue
with x86bios.

Here we want the kernel physaddr to be the amd64 superpage size, so use
that value (2MB) explicitly. With this change GNU gold and LLVM lld can
link a working amd64 kernel.

PR:		214718 (x86bios)
Differential Revision:	https://reviews.freebsd.org/D8610
2016-11-25 18:57:14 +00:00
dim
13bea338cb Bump FREEBSD_CC_VERSION again for r309147 and 309149. 2016-11-25 18:12:57 +00:00
dim
f298a82fda Pull in r283060 from upstream llvm trunk (by Hal Finkel):
[PowerPC] Refactor soft-float support, and enable PPC64 soft float

  This change enables soft-float for PowerPC64, and also makes
  soft-float disable all vector instruction sets for both 32-bit and
  64-bit modes. This latter part is necessary because the PPC backend
  canonicalizes many Altivec vector types to floating-point types, and
  so soft-float breaks scalarization support for many operations. Both
  for embedded targets and for operating-system kernels desiring
  soft-float support, it seems reasonable that disabling hardware
  floating-point also disables vector instructions (embedded targets
  without hardware floating point support are unlikely to have Altivec,
  etc. and operating system kernels desiring not to use floating-point
  registers to lower syscall cost are unlikely to want to use vector
  registers either). If someone needs this to work, we'll need to
  change the fact that we promote many Altivec operations to act on
  v4f32. To make it possible to disable Altivec when soft-float is
  enabled, hardware floating-point support needs to be expressed as a
  positive feature, like the others, and not a negative feature,
  because target features cannot have dependencies on the disabling of
  some other feature. So +soft-float has now become -hard-float.

  Fixes PR26970.

Pull in r283061 from upstream clang trunk (by Hal Finkel):

  [PowerPC] Enable soft-float for PPC64, and +soft-float -> -hard-float

  Enable soft-float support on PPC64, as the backend now supports it.
  Also, the backend now uses -hard-float instead of +soft-float, so set
  the target features accordingly.

  Fixes PR26970.

Reported by:	Mark Millard
PR:		214433
2016-11-25 18:12:13 +00:00
jhb
f91c1f1791 Permit timed sleeps for threads other than thread0 before timers are working.
The callout subsystem already handles early callouts and schedules
the first clock interrupt appropriately based on the currently pending
callouts.  The one nit to fix was that callouts scheduled via C_HARDCLOCK
during early boot could fire too early once timers were enabled as the
per-CPU base time is always zero until timers are initialized.  The change
in callout_when() handles this case by using the current uptime as the
base time of the callout during bootup if the per-CPU base time is zero.

Reviewed by:	kib
MFC after:	2 weeks
Sponsored by:	Netflix
2016-11-25 18:02:43 +00:00
dim
29bc5ed5ac Pull in r282174 from upstream llvm trunk (by Krzysztof Parzyszek):
[PPC] Set SP after loading data from stack frame, if no red zone is
  present

  Follow-up to r280705: Make sure that the SP is only restored after
  all data is loaded from the stack frame, if there is no red zone.

  This completes the fix for
  https://llvm.org/bugs/show_bug.cgi?id=26519.

  Differential Revision: https://reviews.llvm.org/D24466

Reported by:    Mark Millard
PR:             214433
2016-11-25 18:01:32 +00:00
fabient
d99afb2c92 Update r309143 to prevent false sharing.
Reported by:	mjg
Approved by:	so
MFC after:	1 month
2016-11-25 17:20:23 +00:00
andrew
6585173eb9 Fix the TLB conflict abort value. This should be a no-op as we don't use
this value in the code.
2016-11-25 16:04:36 +00:00
fabient
2a3ca2933d IPsec RFC6479 support for replay window sizes up to 2^32 - 32 packets.
Since the previous algorithm, based on bit shifting, does not scale
with large replay windows, the algorithm used here is based on
RFC 6479: IPsec Anti-Replay Algorithm without Bit Shifting.
The replay window will be fast to be updated, but will cost as many bits
in RAM as its size.

The previous implementation did not provide a lock on the replay window,
which may lead to replay issues.

Reviewed by:	ae
Obtained from:	emeric.poupon@stormshield.eu
Sponsored by:	Stormshield
Differential Revision:	https://reviews.freebsd.org/D8468
2016-11-25 14:44:49 +00:00
fabient
daeb893b0f In a dual processor system (2*6 cores) during IPSec throughput tests,
we see a lot of contention on the arc4 lock, used to generate the IV
of the ESP output packets.

The idea of this patch is to split this mutex in order to reduce the
contention on this lock.

Reviewed by:	delphij, markm, ache
Approved by:	so
Obtained from: emeric.poupon@stormshield.eu
MFC after: 1 month
Sponsored by:	Stormshield
Differential Revision:	https://reviews.freebsd.org/D8130
2016-11-25 13:49:33 +00:00
emaste
3e20f5ea69 Add WITH_LLD_AS_LD build knob
If set it installs LLD as /usr/bin/ld.  LLD (as of version 3.9) is not
capable of linking the world and kernel, but can self-host and link many
substantial applications. GNU ld continues to be used for the world and
kernel build, regardless of how this knob is set.

It is on by default for arm64, and off for all other CPU architectures.

Sponsored by:	The FreeBSD Foundation
2016-11-25 13:15:28 +00:00
sephe
c587e876ec hyperv/vmbus: Add a simplified version of channel close.
So that the caller can know the channel close error and react accordingly.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8600
2016-11-25 09:13:10 +00:00
sephe
898548e1d5 hyperv/vmbus: Propagate close error.
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8599
2016-11-25 08:57:52 +00:00
sephe
845be79221 hyperv/vmbus: Always try disconnect/free bufring memory upon channel close
While I'm here, minor wording and style changes.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8598
2016-11-25 08:31:13 +00:00
sephe
043a26ce24 hyperv/vmbus: Don't free the bufring if its GPADL can't be disconnected.
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8570
2016-11-25 07:41:42 +00:00
sephe
37e0317e88 hyperv/vmbus: Return EISCONN if the bufring GPADL can't be disconnected.
So that the callers of vmbus_chan_open_br() could handle the passed in
bufring memory properly.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8569
2016-11-25 07:24:11 +00:00
sephe
a2c9690ced hyperv/vmbus: No stranded bufring GPADL is allowed.
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8568
2016-11-25 07:03:45 +00:00
sephe
9fb540c589 hyperv/vmbus: GPADL disconnect error on a revoked channel is benign.
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8567
2016-11-25 06:48:53 +00:00
sephe
b296d71f70 hyperv/vmbus: Don't close unopened channels.
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8566
2016-11-25 06:12:18 +00:00
sephe
34312086a0 hyperv/vmbus: Fix sysctl tree leakage, if channel open fails.
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8565
2016-11-25 06:01:45 +00:00
sephe
30eee36619 hyperv/vmbus: Minor style changes.
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8564
2016-11-25 05:46:15 +00:00
sephe
8540461bc2 hyperv/vmbus: Commit the GPADL id only after the connection succeeds.
Minor style change.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8563
2016-11-25 05:35:29 +00:00
dexuan
9a27398b75 hyperv/vmbus,pcib: unbreak build in case NEW_PCIB is undefined
vmbus_pcib requires NEW_PCIB, but in case that's not defined, we at
least shouldn't break build.

Reviewed by:	sephe
Approved by:	sephe (mentor)
MFC after:	3 days
Sponsored by:	Microsoft
2016-11-25 04:35:40 +00:00
emaste
27c01745fa Correct lld llvm-tblgen dependency file name 2016-11-25 01:24:35 +00:00
dim
b92180c4c9 Upgrade our copies of clang, llvm, lldb, compiler-rt and libc++ to 3.9.0
release, and add lld 3.9.0.  Also completely revamp the build system for
clang, llvm, lldb and their related tools.

Please note that from 3.5.0 onwards, clang, llvm and lldb require C++11
support to build; see UPDATING for more information.

Release notes for llvm, clang and lld are available here:
<http://llvm.org/releases/3.9.0/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.9.0/tools/clang/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.9.0/tools/lld/docs/ReleaseNotes.html>

Thanks to Ed Maste, Bryan Drewery, Andrew Turner, Antoine Brodin and Jan
Beich for their help.

Relnotes:	yes
MFC after:	1 month
2016-11-24 22:55:24 +00:00
dim
c3c86d881d Merge ^/head r309118 through r309122. 2016-11-24 22:33:18 +00:00
dim
4d592d19e9 Add UPDATING entry for clang/llvm 3.9.0 import. 2016-11-24 22:18:55 +00:00
jceel
65feaeaf88 virtio_console: handle short writes to an Unix domain socket gracefully.
writev() can do a short write.  Retrying it results in a very convoluted
and complex code, so we iterate over iovec and do regular stream_write()
instead.

Approved by:	trasz
Sponsored by:	iXsystems, Inc.
2016-11-24 22:16:18 +00:00
jceel
5673d8fe28 Allow opening virtio-console ports from the host side before guest
enumerates them.

Approved by:	trasz
Sponsored by:	iXsystems, Inc.
2016-11-24 21:53:42 +00:00