Commit Graph

114584 Commits

Author SHA1 Message Date
Justin Hibbits
fa133b6bf0 Use the right bitwise OR operation for clearing single-step at trap time.
DBCR0_IDM || DBCRO_IC yields 1, which in this register is DBCR0_FT, not what we
want.
Reported by:	Mark Millard
MFC after:	2 weeks
2016-12-16 04:38:53 +00:00
Adrian Chadd
26eae5c681 [ar933x] don't waste memory/flash; drop the UMTX_CHAINS count down to 16. 2016-12-16 00:04:32 +00:00
Ed Maste
602f95d4c4 Add WITH_REPRODUCIBLE_BUILD src.conf(5) knob to disable kernel metadata
The kernel builds reproducibly, except for the time, date, user, and
hostname baked into the kernel (reported at startup and via the
kern.version sysctl for uname).  Add a build knob to disable the
inclusion of this metadata.

Reviewed by:	jhb
MFC after:	1 month
Relnotes:	Yes
Sponsored by:	Reproducible Builds World Summit 2, Berlin
Differential Revision:	https://reviews.freebsd.org/D8809
2016-12-15 21:26:58 +00:00
Andrew Turner
6eef858694 Add -fPIC to the ubldr build. Without this the self relocation code will
try to use an absolute address in a switch statement, jumping to an invalid
memory location.

Sponsored by:	ABT Systems Ltd
2016-12-15 17:36:54 +00:00
Emmanuel Vadot
74b66ae149 Fix building arm64 kernel after r310117
Pointy hat: me

MFC after:	3 days
2016-12-15 17:26:16 +00:00
Emmanuel Vadot
15b2342cf3 Add information about interrupts in the Allwinner padconf files and
correct some pin numbering.

While here switch to my freebsd mail address in the copyright.

MFC after:	3 days
2016-12-15 15:52:13 +00:00
Ed Schouten
669a25b50d Document the existence of the {0, 6, ...} sysctl. 2016-12-15 15:45:11 +00:00
Ed Maste
e77cf5967a newvers.sh: correct typo in comment
Submitted by:	lidl
2016-12-15 15:14:02 +00:00
Andrew Turner
cf1db37a45 Directly include openfirm.h rather than through fdt_common.h as none of the
latter file is needed.

Sponsored by:	ABT Systems Ltd
2016-12-15 13:31:44 +00:00
Ed Maste
7e9de36c3a newvers.sh: add option to eliminate kernel build metadata
Build metadata (username, hostname, etc.) prevents the FreeBSD kernel
from building reproducibly. Add an option to disable inclusion of that
metadata but retain the release information and SVN/git VCS details.
See https://reproducible-builds.org/ for additional background.

Reviewed by:	bapt
Obtained from:	NetBSD
MFC after:	1 month
Sponsored by:	Reproducible Builds World Summit 2, Berlin
Differential Revision:	https://reviews.freebsd.org/D4347
2016-12-15 12:57:03 +00:00
Alexander Motin
c5f74c4873 Revert r310023 for now.
After another look my new variable mapping was not exactly right.
2016-12-15 08:03:16 +00:00
Sepherosa Ziehau
9622c93ae8 hyperv: Allow userland to ro-mmap reference TSC page
This paves way to implement VDSO for the enlightened time counter.

Reviewed by:	kib
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8768
2016-12-15 03:32:24 +00:00
Navdeep Parhar
1de8c69de7 cxgbe(4): Deal with compressed error vectors.
MFC after:	3 days
Sponsored by:	Chelsio Communications
2016-12-15 02:05:29 +00:00
Konstantin Belousov
a1e9a3bba3 Provide introductory description of the default pager.
Reviewed by:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-12-14 23:36:32 +00:00
Konstantin Belousov
a41ece0840 Remove locking around accounting initialization of the default object.
The object is not yet fully constructed and must not be available to
other threads.  This makes default_pager_alloc() almost identical to
swap_pager_alloc_init().

Reviewed by:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-12-14 23:34:25 +00:00
Jilles Tjoelker
b9a6fb9343 reaper: Make REAPER_KILL_SUBTREE actually work.
MFC after:	2 weeks
2016-12-14 22:49:20 +00:00
Dimitry Andric
085def3f0a In xbd_connect(), use correct scanf conversion specifiers for the
feature_barrier and feature_flush variables.  Otherwise, adjacent
variables on the stack, such as sector_size, may be overwritten, with
disastrous results.

Note that I did not see a good reason to revert the addition of zero
checks introduced in r310013.  Better safe than sorry.

PR:		215209
Tested by:	royger
MFC after:	3 days
2016-12-14 19:28:19 +00:00
Mark Johnston
f85ea63d69 Don't run the MCA record refill task during boot.
The MCA taskqueue is not initialized until some time after CMCIs are
enabled on the BSP.

Reviewed by:	cem, jhb
MFC after:	1 week
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D8783
2016-12-14 19:00:08 +00:00
Alan Cox
3d026d871f Tidy up. Mostly, remove or replace stale comments. Most of the comments
in this file actually described the operation of the swap pager, not the
default pager.  Given that this is the wrong place to discuss the
implementation of the swap pager, it shouldn't come as a surprise that as
the swap pager evolved these comments became increasingly stale.  In
addition, apply some style fixes, like modernizing a few remaining old-
style function definitions.

Reviewed by:	kib, markj
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D8781
2016-12-14 17:28:55 +00:00
Emmanuel Vadot
2b0f0faeb6 Add new compatible string "allwinner,sun7i-a20-mmc".
New upstream DTS is using this now for A20 SoC.

MFC after:	3 days
2016-12-14 15:00:24 +00:00
Hans Petter Selasky
d3e8d4784d Fix initialisation of mlx4_pci_table's .driver_data fields.
MFC after:		1 week
Differential Revision:	https://reviews.freebsd.org/D8791
Sponsored by:		Mellanox Technologies
Submitted by:		Dexuan Cui <decui@microsoft.com>
2016-12-14 14:13:44 +00:00
Ed Schouten
13a83707bc Revert accidental change made in r310056.
Because I had to cherry-pick some of my changes in r310051, I
accidentally made a typo when manually applying the rest in r310056.
2016-12-14 13:35:33 +00:00
Ed Schouten
977ffc4c2a Let all FEATURE()s use the same Prometheus metric.
Without this change, every individual FEATURE() declaration would have
an individual metric in Prometheus. Though this wouldn't be harmful, it
would look very cluttered.

By letting it use a single metric with the name of the feature attached
as a label, it also becomes easier to search, as you can apply regex
matching, etc.

Reviewed by:	cem
Differential Revision:	https://reviews.freebsd.org/D8775
2016-12-14 13:05:04 +00:00
Ed Schouten
ae15715360 Add a "device_index" label to all sysctls under dev.$driver.$index.
This way it becomes possible to graph a property for all instances of a
single driver. For example, graphing the number of packets across all
USB controllers, the amount of dropped packets on all NICs, etc.

Reviewed by:	cem
Differential Revision:	https://reviews.freebsd.org/D8775
2016-12-14 13:03:01 +00:00
Ed Schouten
3fd335bcc7 Attach a "thermal_zone" label to the ACPI thermal zone sysctls.
In order to make Prometheus do graphing/alerting on thermal sensors in a
generic fashion, we should attach the name of the thermal zone device as
a label. That way there is only a single metric for the temperature of a
thermal zone, with its name attached as a label.

Reviewed by:	cem
Differential Revision:	https://reviews.freebsd.org/D8775
2016-12-14 13:00:27 +00:00
Ed Schouten
fd0f59709d Add labels to sysctls related to clocks.
Sysctls like kern.eventtimer.et.*.quality currently embed the name of
the clock device. This is problematic for the Prometheus metrics
exporter for two reasons:

- Some of those clocks have dashes in their names, which Prometheus
  doesn't allow to be used in metric names.
- It doesn't allow for extracting the same property of all clocks on the
  system from within a single query.

Attach these nodes to have a label, so that the Prometheus metrics
exporter gives these metric a uniform name with the name of the clock
attached as a label.

Reviewed by:	cem
Differential Revision:	https://reviews.freebsd.org/D8775
2016-12-14 12:56:58 +00:00
Ed Schouten
4c484fd216 Add label annotations to CAM sysctls.
Under kern.cam we have certain sysctls that are per-device, such as the
ones under kern.cam.ada.[0-9]+.*. Add a "device_index" label annotation
to such sysctls, so that the Prometheus metrics exporter will give all
of those metrics the same name. The device number will be added to the
metric name as the "device_index" label.

Reviewed by:	cem
Differential Revision:	https://reviews.freebsd.org/D8775
2016-12-14 12:53:33 +00:00
Ed Schouten
1e1f3941e4 Add support for attaching aggregation labels to sysctl objects.
I'm currently working on writing a metrics exporter for the Prometheus
monitoring system to provide access to sysctl metrics. Prometheus and
sysctl have some structural differences:

- sysctl is a tree of string component names.
- Prometheus uses a flat namespace for its metrics, but allows you to
  attach labels with values to them, so that you can do aggregation.

An initial version of my exporter simply translated

    hw.acpi.thermal.tz1.temperature

to

    sysctl_hw_acpi_thermal_tz1_temperature_celcius

while we should ideally have

    sysctl_hw_acpi_thermal_temperature_celcius{thermal_zone="tz1"}

allowing you to graph all thermal zones on a system in one go.

The change presented in this commit adds support for accomplishing this,
by providing the ability to attach labels to nodes. In the example I
gave above, the label "thermal_zone" would be attached to "tz1". As this
is a feature that will only be used very rarely, I decided to not change
the KPI too aggressively.

Discussed on:	hackers@
Reviewed by:	cem
Differential Revision:	https://reviews.freebsd.org/D8775
2016-12-14 12:47:34 +00:00
Konstantin Belousov
396a688bd9 Provide non-final but valid PCB pointer for thread0 for duration of
hammer_time().  This makes assembler exception handlers not fault
itself when setting PCB flags, and allow normal kernel trap handler to
get control.  The pointer is reset after FPU parameters are obtained.

Set thread0.td_critnest to 1 for duration of hammer_time() as well.
In particular, page faults at that early stage panic immediately
instead of trying to call not yet operational VM to resolve it.

As result, faults during second half of the hammer_time() execution
have a chance to be reported instead of silent machine reboot or hang.

Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2016-12-14 11:40:31 +00:00
Navdeep Parhar
ca276276f1 cxgbe(4): Fix the tid range shown for T6 cards in misc.tids.
MFC after:	3 days
2016-12-14 07:36:36 +00:00
Sepherosa Ziehau
de69dfbbbc hyperv: Implement "enlightened" time counter, which is rdtsc based.
Reviewed by:	kib
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8763
2016-12-14 03:20:57 +00:00
John Baldwin
a24563566a Add 'const' to fn_name's return type to remove a cast. 2016-12-14 00:21:06 +00:00
John Baldwin
ecb65f66c6 Use casts to force an unsigned comparison in db_search_symbol().
On all of our platforms, db_expr_t is a signed integer while
db_addr_t is an unsigned integer value.  db_search_symbol used variables
of type db_expr_t to hold the current offset of the requested address from
the "best" symbol found so far.  This value was initialized to '~0'.
When a new symbol is found from a symbol table, the associated diff for the
new symbol is compared against the existing value as 'if (newdiff < diff)'
to determine if the new symbol had a smaller diff and was thus a closer
match.

On 64-bit MIPS, the '~0' was treated as a negative value (-1).  A lookup
that found a perfect match of an address against a symbol returned a diff
of 0.  However, in signed comparisons, 0 is not less than -1.  As a result,
DDB on 64-bit MIPS never resolved any addresses to symbols.  Workaround
this by using casts to force an unsigned comparison.

Probably the diff returned from db_search_symbol() and X_db_search_symbol()
should be changed to a db_addr_t instead of a db_expr_t as it is an
unsigned value (and is an offset of an address, so should fit in the same
size as an address).

Sponsored by:	DARPA / AFRL
2016-12-14 00:18:12 +00:00
John Baldwin
2aa82aeacc Fix stack traces in DDB for the debugger thread.
When the kernel debugger is entered, makectx() is called to store
appropriate state from the trapframe for the debugger into a global
kdb_pcb used as the thread context of the thread entering the
debugger.  Stack unwinders for DDB called via db_trace_thread() are
supposed to then use this saved context so that the stack trace for
the current thread starts at the location of the event that triggered
debugger entry.

MIPS was instead starting the stack trace of the current thread from
the context of db_trace_thread itself and unwinding back out through
the debugger to the original frame.  Fix a couple of things to bring
MIPS inline with other platforms:
- Fix makectx() to store the PC, SP, and RA in the right portion of
  the PCB used by db_trace_thread().
- Fix db_trace_thread() to always use kdb_thr_ctx() (and thus kdb_pcb
  for the debugger thread).
- Move the logic for tracing curthread from within the current
  function into db_trace_self() to match other architectures.

Sponsored by:	DARPA / AFRL
2016-12-13 22:30:48 +00:00
Navdeep Parhar
1521ca71d3 cxgbe(4): Retire t4_bus_space_read_8 and t4_bus_space_write_8.
MFC after:	3 days
Sponsored by:	Chelsio Communications
2016-12-13 20:35:57 +00:00
Gleb Smirnoff
1276a8363c Zero return value when counter_rate() switches over to next second and
value is positive, but below the limit.
2016-12-13 20:11:45 +00:00
Conrad Meyer
2f02a9e15a linuxkpi: Fix not-found case of linux_pci_find_irq_dev
Linux list_for_each_entry() does not neccessarily end with the iterator
NULL (it may be an offset from NULL if the list member is not the first
element of the member struct).

Reported by:	Coverity
CID:		1366940
Reviewed by:	hselasky@
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D8780
2016-12-13 19:58:21 +00:00
John Baldwin
ca311cf72b Use register_t instead of uintptr_t for register values in backtraces.
This fixes backtraces from DDB in n32 kernels as uintptr_t is only a
uint32_t.  In particular, the upper 32-bits of each register value were
treated as the register's value breaking both the output of register
values, but also the values of 'ra' and 'sp' required to walk up to the
previous frame.

Sponsored by:	DARPA / AFRL
2016-12-13 19:36:05 +00:00
John Baldwin
6c941e4724 Fix remove_userlocal_code() for n32.
n32 kernels use a 64-bit store to the TLS register rather than a 32-bit
store.

Sponsored by:	DARPA / AFRL
2016-12-13 19:27:31 +00:00
John Baldwin
a9546a6b17 Use db_lookup_proc() in the DDB 'show procvm' command.
This allows processes to be identified by PID as well as a pointer address.

MFC after:	2 weeks
Sponsored by:	DARPA / AFRL
2016-12-13 19:22:43 +00:00
Konstantin Belousov
8266737023 Fix bug in r309712, do not leak gem object pin count in case of error
or retry.

Reported and tested by:	Michael Butler <imb@protected-networks.net>
Sponsored by:	The FreeBSD Foundation
MFC after:	16 days
2016-12-13 19:04:05 +00:00
Alexander Motin
d686b07132 Reduce diff from Illumos by better variables mapping. 2016-12-13 16:20:10 +00:00
Andrew Turner
ba9f40ca3b Use the platform_*_t typedefs to help check the platform function types are
correct.

Sponsored by:	ABT Systems Ltd
2016-12-13 13:46:09 +00:00
Andrew Turner
59249a516a Add the missing void to function signatures in much of the arm code.
Sponsored by:	ABT Systems Ltd
2016-12-13 13:43:22 +00:00
Andrew Turner
3f31908a97 Use platform_*_t to check the platform function signatures are correct in
the Rockchip platform code and correct the one place they differ.

Sponsored by:	ABT Systems Ltd
2016-12-13 13:07:17 +00:00
Ganbold Tsagaankhuu
a89938019a Switch Rockchip RK3188 SoC to use the platform code.
Reviewed by:	andrew, manu
Differential Revision:	https://reviews.freebsd.org/D8769
2016-12-13 11:43:46 +00:00
Michael Zhilin
d1c38239e8 [gpiospi] add clock delay to avoid smashing of bits
Submitted by:	Hiroki Mori <yamori83@yahoo.co.jp>
Reviewed by:	loos, ray, mizhka
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D8749
2016-12-13 10:03:29 +00:00
Michael Zhilin
167a228d79 [spi] reformat message and ar5315_spi minor fix
This commit corrects print of nomatch (newline was too early) and fix
unit number for new child in ar5315_spi (was 0, now is -1 to calculate it
according to actual system state)

Submitted by:	Hiroki Mori <yamori813@yahoo.co.jp>
Reviewed by:	ray, loos, mizhka
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D8749
2016-12-13 09:53:43 +00:00
Ed Schouten
d6d7df8aa0 Remove the only user of sysctl_add_oid().
My plan is to change this function's prototype at some point in the
future to add a new label argument, which can be used to export all of
sysctl as metrics that can be scraped by Prometheus. Switch over this
caller to use the macro wrapper counterpart.
2016-12-13 07:58:30 +00:00
Colin Percival
93954c2da3 Check that blkfront devices have a non-zero number of sectors and a
non-zero sector size.  Such a device would be a virtual disk of zero
bytes; clearly not useful, and not something we should try to attach.

As a fortuitous side effect, checking that these values are non-zero
here results in them not *becoming* zero later on the function.  This
odd behaviour began with r309124 (clang 3.9.0) but is challenging to
debug; making any changes to this function whatsoever seems to affect
the llvm optimizer behaviour enough to make the unexpected zeroing of
the sector_size variable cease.

PR:		215209
Security:	The potential for variables to unexpectedly become zero
		has worrying consequences for security in general, but
		not so much in this particular context.
2016-12-13 06:54:13 +00:00
Oleksandr Tymoshenko
c85d45a5bb [iMX6] Add compatibility string for GPT timer on i.MX6 Dual
Up until r295436 GPT timer in i.MX6 Dual dts used the same compatiblity
string as i.MX6 Quad. After the sync up with Linux in r295436, GPT timer
stopped getting attached on the i.MX6 Dual

MFC after:	3 days
2016-12-13 05:09:49 +00:00
Luiz Otavio O Souza
a9a7fbcc58 Remove a too strict test and instead, just filter the passed flags with the
supported capabilities.

Spotted by:	yamori813@yahoo.co.jp (Hiroki Mori)
MFC after:	2 weeks
2016-12-13 03:36:41 +00:00
Oleksandr Tymoshenko
ec0a42e59c [iMX6] Fix platform compatibility string for i.MX6 Dual
i.MX6 Dual boot was broken since r308533 because ofw_bus_node_is_compatible
is more strict than fdt_is_compatible and does not accept partial matches
2016-12-13 03:26:12 +00:00
Emmanuel Vadot
adff859ba2 Use the spibus accessor when applicable.
MFC after:	3 days
2016-12-12 20:04:31 +00:00
Mateusz Guzik
25e578de55 vfs: use vrefact in getcwd and fchdir 2016-12-12 19:16:35 +00:00
Edward Tomasz Napierala
e3d4c4dcde Undo r309891. Konstantin is right in that this condition normally
cannot happen - the um_dev field is assigned at mount and never written
to afterwards.
2016-12-12 19:11:04 +00:00
Emmanuel Vadot
718860e469 CS ivar is uint32_t, not int.
MFC after:	3 days
2016-12-12 18:36:46 +00:00
Andrew Turner
adca4ffc22 Enable ACPI on arm64. It's not yet functional, but it will help keeping the
code building until it is ready.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-12-12 18:13:03 +00:00
Alan Cox
3453bca864 Eliminate every mention of PG_CACHED pages from the comments in the machine-
independent layer of the virtual memory system.  Update some of the nearby
comments to eliminate redundancy and improve clarity.

In vm/vm_reserv.c, do not use hyphens after adverbs ending in -ly per
The Chicago Manual of Style.

Update the comment in vm/vm_page.h defining the four types of page queues to
reflect the elimination of PG_CACHED pages and the introduction of the
laundry queue.

Reviewed by:	kib, markj
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D8752
2016-12-12 17:47:09 +00:00
Ruslan Bukin
f3c658a869 Apply clear_mask correctly.
Reviewed by:	jmcneill, kan
Sponsored by:	DARPA, AFRL
2016-12-12 17:08:52 +00:00
Andrew Turner
f9a22a068d On non-Intel platforms don't ignore the PCI root bridge mapping in
acpi_set_resource, the mappings are needed on arm64.

Obtained from:	ABT Systenms Ltd
Sponsored by:	The FreeBSD Foundation
2016-12-12 16:53:55 +00:00
Emmanuel Vadot
bbd72acb3b clk_div: Add a div lookup table
Some clocks on SoC have a diff between the value written in the register
and the real divider.
Add a table that where we can lookup the real value of the divider.

Reviewed by:	mmel (earlier revision)
Differential Revision:	https://reviews.freebsd.org/D8728
2016-12-12 16:43:31 +00:00
Mateusz Guzik
5afb134c32 vfs: add vrefact, to be used when the vnode has to be already active
This allows blind increment of relevant counters which under contention
is cheaper than inc-not-zero loops at least on amd64.

Use it in some of the places which are guaranteed to see already active
vnodes.

Reviewed by:	kib (previous version)
2016-12-12 15:37:11 +00:00
Jayachandran C.
3ce73b2662 Fix gic_cpu_mask() calculation in ARM GIC
r309616 changed the definition of GICD_ITARGETSR(n) to take the irq
id as argument, but the usage of the macro in gic_cpu_mask() was not
updated to reflect this. This causes the cpu mask to be computed
incorrectly.

Update the GICD_ITARGETSR() call to fix this, this fixes a hang seen
while booting freebsd on qemu-system-aarch64 with SMP enabled.
2016-12-12 15:35:57 +00:00
Edward Tomasz Napierala
223cb0e434 Avoid dereferencing NULL pointers in devtoname(). I've seen it panic,
called from ufs_print() in DDB.

MFC after:	1 month
2016-12-12 15:22:21 +00:00
Jayachandran C.
7d9082cafa Increase interrupt cells in generic_pcie_fdt_route_interrupt
ARM GIC specification in device trees use 3 cells, so the current
limit of 2 causes the last cell to be dropped. This in turn can
cause the interrupt polarity and trigger settings to be incorrect.

Increase the limit to 4 which should handle all reasonable cases.
This fixes issues seen in QEMU when registering PCI interrupts.
2016-12-12 15:17:56 +00:00
Andrey V. Elsukov
8a030e9c6e Modify IPv6 statistic accounting in ip6_input().
Add rcvif local variable to keep inbound interface pointer. Count
ifs6_in_discard errors in all "goto bad" cases. Now it will count
errors even if mbuf was freed. Modify all places where m->m_pkthdr.rcvif
is used to use local rcvif variable.

Obtained from:	Yandex LLC
MFC after:	1 month
2016-12-12 11:26:59 +00:00
Konstantin Belousov
778aa66a68 Enable lookup_cap_dotdot and lookup_cap_dotdot_nonlocal.
Requested and reviewed by:	cem
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D8746
2016-12-12 11:12:04 +00:00
Konstantin Belousov
545d312293 When a zombie gets reparented due to the parent exit, send SIGCHLD to
the reaper.

The traditional reaper init(8) is aware of zombies silently reparented
to it after the parents exit, it loops around waitpid(2) to collect
them.  For other reapers, the silent reparenting is surprising and
collecting zombies requires a thread blocking in waitpid(2) just for
that purpose.  It seems that sending second SIGCHLD is a better
workaround than forcing all reapers to obey the setup.

Reported by:	 Michael Zuo <muh.muhten@gmail.com>, jilles
PR:	213928
Reviewed by:	jilles (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2016-12-12 11:11:50 +00:00
Andrey V. Elsukov
5a1842a24a Add ip6_tryforward() - a run to completion forwarding implementation
for IPv6.

It gets performance benefits from reduced number of checks. It doesn't
copy mbuf to be able send ICMPv6 error message, because it keeps mbuf
unchanged until the moment, when the route decision has been made.
It doesn't do IPsec checks, and when some IPsec security policies present,
ip6_input() uses normal slow path.

Reviewed by:	bz, gnn
Obtained from:	Yandex LLC
MFC after:	1 month
Sponsored by:	Yandex LLC
Differential Revision:	https://reviews.freebsd.org/D8527
2016-12-12 10:57:32 +00:00
Sepherosa Ziehau
6c1204df36 hyperv/hn: Add polling support
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8739
2016-12-12 05:18:03 +00:00
Sepherosa Ziehau
b99113a1c1 hyperv/vmbus: Add channel polling support.
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8738
2016-12-12 05:04:55 +00:00
Hiren Panchasara
b6ff672460 We currently don't do TSO if ip options are present. In case of IPv6, we look at
in6p_options to check that. That is incorrect as we carry ip options in
in6p_outputopts. Also, just checking for in6p_outputopts being NULL won't
suffice as we combine ip options and ip header fields both in that one field.
The commit fixes this by using ip6_optlen() which correctly calculates length
of only ip options for IPv6.

Reviewed by:	    ae, bz
MFC after:	    3 weeks
Sponsored by:	    Limelight Networks
2016-12-11 23:14:47 +00:00
Alexander Motin
2823b6467a Postpone ZVOL media/block size caching till first open.
At least on FreeBSD there are no legal way to access media or get its
size without opening device/provider first.  Postponing this caching
allows to skip several disk seeks per ZVOL/snapshot during import.

For HDD pool with 1 ZVOL in dev mode with 1000 snapshots this reduces
pool import time from 40 to 10 seconds.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2016-12-11 19:50:39 +00:00
Alan Cox
2d612d2dd2 When tmpfs and POSIX shm pagein a page for the sole purpose of performing
truncation, immediately queue the page for asynchronous laundering rather
than making the page pass through inactive queue first.

Reviewed by:	kib, markj
2016-12-11 19:24:41 +00:00
Konstantin Belousov
5ab0f0c3f0 Prefix hex memory addresses with 0x in diagnostic messages from the
SRAT parser.

Submitted by:	Oliver Pinter
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D8750
2016-12-11 19:01:27 +00:00
Andriy Voskoboinyk
ef06a176eb rsu: fix and enable Rx TCP checksum offloading.
Tested with Asus USB-N10, STA mode.
2016-12-11 17:15:25 +00:00
Michael Tuexen
8b9c95f4a9 Ensure that the reported ppid and tsn are taken from the first fragment.
This fixes a bug where the wrong ppid was reported, if
* I-DATA was used on the first fragement was not received first
* DATA was used and different ppids where used.

Thanks to Julian Cordes for making me aware of the issue.

MFC after:	1 week
2016-12-11 13:26:35 +00:00
Andriy Voskoboinyk
14a8d2f995 rsu: various initialization fixes.
- Do not ignore initialization errors; call ieee80211_stop()
when initialization failed.
- Use usb_pause_mtx() instead of DELAY() while waiting for firmware
loading; this fixes system freeze during firmware startup.
- Do not execute rsu_stop() when device is powered off; fixes
'unknown board type (rfconfig=0xff)' error when the device is
reattached.

Tested with Asus USB-N10.
2016-12-10 22:31:49 +00:00
Alexander Motin
2fb5d72d58 Add missed vfs.zfs.zfetch.max_idistance sysctl. 2016-12-10 21:19:27 +00:00
Andriy Voskoboinyk
88c2e36adb rsu: use bitmap for all debug messages.
- Replace all remaining DPRINTF(N)'s with RSU_DPRINTF.
- Add new RSU_DEBUG_USB flag to track error codes returned by
usbd_do_request_flags().
- Improve few messages.
2016-12-10 20:19:57 +00:00
Andriy Voskoboinyk
f06ccf881e rsu: add promiscuous mode support.
- Add partial promiscuous mode support (no management frames;
they cannot be received by the firmware and net80211 at the same time).
- Add monitor mode support (all frames).

Tested with Asus, USB-N10.
2016-12-10 18:47:13 +00:00
Oleksandr Tymoshenko
4af79d4f2b [evdev] Adds evdev support to sysmouse(4) driver
For horizontal (T-axis) wheel reporting which is not supported by
sysmouse protocol kern.evdev.sysmouse_t_axis sysctl is introduced.
It can take following values:

0 - no T-axis events (default)
1 - T-axis events are originated in ums(4) driver.
2 - T-axis events are originated in psm(4) driver.

Submitted by:	Vladimir Kondratiev <wulf@cicgroup.ru>
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D8597
2016-12-10 18:07:16 +00:00
Oleksandr Tymoshenko
c837b8e35f [iwn] Perform BUS_DMASYNC_PREREAD when initializing RX buffer
BUS_DMASYNC_PREREAD is required when setting up RX buffer, otherwise
data provided by card can be overwritten by data evicted from cache

Also use proper tag when setting up RX descriptor

Reviewed by:	adrian, avos, ivadasz
Differential Revision:	https://reviews.freebsd.org/D8717
2016-12-10 17:59:34 +00:00
Andriy Voskoboinyk
7a4575d0b5 rsu: increase Rx buffer size from 8k to 30k.
This is required for USB Rx aggregation
(and fixes 'could not allocate RX mbuf' / few other failures).

While here, reduce the number of Rx buffers from 100 to 1 -
the driver never uses more than one Rx buffer.

Tested with Asus USB-N10.
2016-12-10 17:06:55 +00:00
Konrad Witaszczyk
480f31c214 Add support for encrypted kernel crash dumps.
Changes include modifications in kernel crash dump routines, dumpon(8) and
savecore(8). A new tool called decryptcore(8) was added.

A new DIOCSKERNELDUMP I/O control was added to send a kernel crash dump
configuration in the diocskerneldump_arg structure to the kernel.
The old DIOCSKERNELDUMP I/O control was renamed to DIOCSKERNELDUMP_FREEBSD11 for
backward ABI compatibility.

dumpon(8) generates an one-time random symmetric key and encrypts it using
an RSA public key in capability mode. Currently only AES-256-CBC is supported
but EKCD was designed to implement support for other algorithms in the future.
The public key is chosen using the -k flag. The dumpon rc(8) script can do this
automatically during startup using the dumppubkey rc.conf(5) variable.  Once the
keys are calculated dumpon sends them to the kernel via DIOCSKERNELDUMP I/O
control.

When the kernel receives the DIOCSKERNELDUMP I/O control it generates a random
IV and sets up the key schedule for the specified algorithm. Each time the
kernel tries to write a crash dump to the dump device, the IV is replaced by
a SHA-256 hash of the previous value. This is intended to make a possible
differential cryptanalysis harder since it is possible to write multiple crash
dumps without reboot by repeating the following commands:
# sysctl debug.kdb.enter=1
db> call doadump(0)
db> continue
# savecore

A kernel dump key consists of an algorithm identifier, an IV and an encrypted
symmetric key. The kernel dump key size is included in a kernel dump header.
The size is an unsigned 32-bit integer and it is aligned to a block size.
The header structure has 512 bytes to match the block size so it was required to
make a panic string 4 bytes shorter to add a new field to the header structure.
If the kernel dump key size in the header is nonzero it is assumed that the
kernel dump key is placed after the first header on the dump device and the core
dump is encrypted.

Separate functions were implemented to write the kernel dump header and the
kernel dump key as they need to be unencrypted. The dump_write function encrypts
data if the kernel was compiled with the EKCD option. Encrypted kernel textdumps
are not supported due to the way they are constructed which makes it impossible
to use the CBC mode for encryption. It should be also noted that textdumps don't
contain sensitive data by design as a user decides what information should be
dumped.

savecore(8) writes the kernel dump key to a key.# file if its size in the header
is nonzero. # is the number of the current core dump.

decryptcore(8) decrypts the core dump using a private RSA key and the kernel
dump key. This is performed by a child process in capability mode.
If the decryption was not successful the parent process removes a partially
decrypted core dump.

Description on how to encrypt crash dumps was added to the decryptcore(8),
dumpon(8), rc.conf(5) and savecore(8) manual pages.

EKCD was tested on amd64 using bhyve and i386, mipsel and sparc64 using QEMU.
The feature still has to be tested on arm and arm64 as it wasn't possible to run
FreeBSD due to the problems with QEMU emulation and lack of hardware.

Designed by:	def, pjd
Reviewed by:	cem, oshogbo, pjd
Partial review:	delphij, emaste, jhb, kib
Approved by:	pjd (mentor)
Differential Revision:	https://reviews.freebsd.org/D4712
2016-12-10 16:20:39 +00:00
Andriy Voskoboinyk
88e8709ef1 rsu: add TSF field into Rx radiotap.
Tested with Asus USB-N10.
2016-12-10 13:30:16 +00:00
George V. Neville-Neil
c2e34f488c This adds a configuration for arm64 users that track CURRENT but
don't need the extra debug facilities.  Copied from the amd64
configuration of the same name.

Submitted by: Nikolai Lifanov
Reviewed by: emaste
MFC after: 2 weeks
2016-12-10 10:00:27 +00:00
Poul-Henning Kamp
34feb2d2cb Add Genesys Logic USB hub.
Make two other USB hub descriptions more precise.
2016-12-10 09:10:48 +00:00
Marcel Moolenaar
aa8c6a6dca Improve upon r309394
Instead of taking an extra reference to deal with pfsync_q_ins()
and pfsync_q_del() taken and dropping a reference (resp,) make
it optional of those functions to take or drop a reference by
passing an extra argument.

Submitted by:	glebius@
2016-12-10 03:31:38 +00:00
Mark Johnston
f99a517272 Don't create FBT probes for lock owner methods.
These functions may be called in DTrace probe context, so they cannot be
safely traced. Moreover, they are currently only used by DTrace, so their
corresponding FBT probes are not particularly useful.

MFC after:	2 weeks
2016-12-10 03:13:11 +00:00
Mark Johnston
8bb9b7f17a Consistently use fbt_excluded() on all architectures.
MFC after:	2 weeks
2016-12-10 03:11:05 +00:00
Mark Johnston
02315a6759 Use a consistent snapshot of the lock state in owner_mtx().
MFC after:	2 weeks
2016-12-10 02:59:34 +00:00
Mark Johnston
c365a2934e Return a non-NULL owner only if the lock is exclusively held in owner_sx().
Fix some whitespace bugs while here.

MFC after:	2 weeks
2016-12-10 02:56:44 +00:00
Warner Losh
8bece6062d Permit loading of efirt module even when there's no EFI to call. The
module loading is successful, but attempts to use it will not be
successful. This is similar to what we do (did?) with ACPI on non-ACPI
systems. We succeed if we can't find the necessary information to hook
into EFI, but still fail if we're unable to allocate resources if we
do find EFI.

Not Objected to by: kib@
MFC Afer: 3 days
2016-12-09 23:37:11 +00:00
Gleb Smirnoff
255003da42 Allow bogus_page to be passed to pager(s). 2016-12-09 21:21:24 +00:00
Gleb Smirnoff
8c70a35334 Fix build for 32-bit machines.
Submitted by:	tuexen
2016-12-09 20:50:35 +00:00
Gleb Smirnoff
5040da77c1 Use acquire write to cr_lock to complement with release write at end
of locked region.

Submitted by:	kib
2016-12-09 19:07:31 +00:00
Mark Johnston
90458813cd Conditionalize PG_CACHE sysctls on COMPAT_FREEBSD11.
Reviewed by:	glebius, imp, jhb
Differential Revision:	https://reviews.freebsd.org/D8736
2016-12-09 18:55:27 +00:00
Mark Johnston
7f68a896dc Add a COMPAT_FREEBSD11 kernel option.
Use it wherever COMPAT_FREEBSD10 is currently specified.

Reviewed by:	glebius, imp, jhb
Differential Revision:	https://reviews.freebsd.org/D8736
2016-12-09 18:54:12 +00:00
Gleb Smirnoff
f98751499c Treat R_X86_64_PLT32 relocs as R_X86_64_PC32.
If we load a binary that is designed to be a library, it produces
relocatable code via assembler directives in the assembly itself
(rather than compiler options).  This emits R_X86_64_PLT32 relocations,
which are not handled by the kernel linker.

Submitted by:	gallatin
Reviewed by:	kib
2016-12-09 18:07:28 +00:00
Gleb Smirnoff
296d65b7a9 Backout accidentially leaked in r309746 not yet reviewed patch :( 2016-12-09 18:00:45 +00:00
Gleb Smirnoff
3cbee8caa1 Use counter_ratecheck() in the ICMP rate limiting.
Together with:	rrs, jtl
2016-12-09 17:59:15 +00:00
Gleb Smirnoff
169170209c Provide counter_ratecheck(), a MP-friendly substitution to ppsratecheck().
When rated event happens at a very quick rate, the ppsratecheck() is not
only racy, but also becomes a performance bottleneck.

Together with:	rrs, jtl
2016-12-09 17:58:34 +00:00
Michael Tuexen
ebecdad811 Don't bundle a SACK chunk with a SHUTDOWN chunk if it is not required.
MFC after:	1 week
2016-12-09 17:58:07 +00:00
Michael Tuexen
8d0a31e19c Don't send multiple SHUTDOWN chunks in a single packet.
Thanks to Felix Weinrank for making me aware of this issue.

MFC after:	1 week
2016-12-09 17:57:17 +00:00
Ruslan Bukin
d9121bf564 Add registers for jz4780 audio and PDMA controllers.
Sponsored by:	DARPA, AFRL
2016-12-09 17:16:09 +00:00
Hans Petter Selasky
12af734d32 Add more LinuxKPI PCI definitions.
Obtained from:	kmacy @
Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-12-09 15:05:09 +00:00
Hans Petter Selasky
1724ded49c Prefer function macros over regular macros in the LinuxKPI.
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-12-09 15:01:37 +00:00
Hans Petter Selasky
be48ab92ac Avoid malloc() warnings when using the LinuxKPI by zero-checking
the allocation flags.

Obtained from:		kmacy @
Sponsored by:           Mellanox Technologies
MFC after:		1 week
2016-12-09 14:06:22 +00:00
Hans Petter Selasky
0a61267a99 MSIX can support more than 256 IRQs. Make sure the invalid IRQ number
set in the LinuxKPI is big enough.

Sponsored by:           Mellanox Technologies
MFC after:		1 week
2016-12-09 13:53:31 +00:00
Hans Petter Selasky
e996b07c72 Prefix some _pci_xxx() functions in the Linux KPI with linux_ and make
sure the IRQ number used by these functions is unsigned.

Sponsored by:           Mellanox Technologies
MFC after:		1 week
2016-12-09 13:47:50 +00:00
Hans Petter Selasky
7fdce5c42b Prefix the Linux KPI's kmem_xxx() functions with linux_ to avoid
conflict with the opensolaris kernel module.

This patch solves a problem where the kernel linker will incorrectly
resolve opensolaris kmem_xxx() functions as linuxkpi ones, which leads
to a panic when these functions are used.

Submitted by:		gallatin @
Sponsored by:           Mellanox Technologies
MFC after:		1 week
2016-12-09 13:41:26 +00:00
Sepherosa Ziehau
4b167c2b4d hyperv/storvsc: Minor style changes; no functional changes.
Reported by:	rpokala
MFC after:	1 week
Sponsored by:	Microsoft
2016-12-09 06:18:12 +00:00
Sepherosa Ziehau
692cb24f10 hyperv/storvsc: Fix the SCSI disk attachment issue.
On pre-WS2016 Hyper-V, if the only LUNs > 7 are used, then all disks
fails to attach.  Mainly because those versions of Hyper-V do not set
SRB_STATUS properly and deliver junky INQUERY responses.

Submitted by:	Hongjiang Zhang <honzhan microsoft com>
Reported by:	Hongxiong Xian <v-hoxian microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8724
2016-12-09 03:16:36 +00:00
Navdeep Parhar
b8c1ffef80 cxgbe(4): netmap does not set IFCAP_NETMAP in an ifnet's if_capabilities
any more (since r307394).  Do it in the driver instead.

MFC after:	1 week
2016-12-09 02:21:27 +00:00
Andriy Voskoboinyk
e1b3ed8f32 rsu: fix incorrect register addresses. 2016-12-08 20:54:54 +00:00
Luiz Otavio O Souza
8f1c8ade60 Fix the typos and style(9) in comment.
MFC after:	2 weeks
Sponsored by:	Rubicon Communications, LLC (Netgate)
2016-12-08 18:18:48 +00:00
Ruslan Bukin
4b3fae2c2d Add jz4780 internal codec initialization driver.
Sponsored by:	DARPA, AFRL
2016-12-08 16:28:34 +00:00
Alexander Motin
9373759d13 Fix spa_alloc_tree sorting by offset in r305331.
Original commit "7090 zfs should improve allocation order" declares alloc
queue sorted by time and offset.  But in practice io_offset is always zero,
so sorting happened only by time, while order of writes with equal time was
completely random.  On Illumos this did not affected much thanks to using
high resolution timestamps.  On FreeBSD due to using much faster but low
resolution timestamps it caused bad data placement on disks, affecting
further read performance.

This change switches zio_timestamp_compare() from comparing uninitialized
io_offset to really populated io_bookmark values.  I haven't decided yet
what to do with timestampts, but on simple tests this change gives the
same peformance results by just making code to work as declared.

MFC after:	1 week
2016-12-08 15:58:03 +00:00
Konstantin Belousov
29edde94ac Use the populate() driver paging method for i915 driver.
In particular, the fault access type is accounted for when the
aperture page is moved to GTT domain.  On the other hand, the current
pager structure is left intact, most important, only one page is
instantiated per populate call.

Reviewed by:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	3 weeks
2016-12-08 11:39:08 +00:00
Konstantin Belousov
ed01d9894e Implement the populate() pager method for phys pager.
It allows to provide configurable agressive prefaulting and useful
hints to page daemon about memory allocations, on faults for pages
managed by phys pager.  In fact, this implementation is superior to
the MAP_SHARED_PHYS hack from my Postgresql paper, while giving
similar benefits of reducing the page faults numbers on SysV shared
memory mappings.

Reviewed by:	alc
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	3 weeks
2016-12-08 11:35:53 +00:00
Konstantin Belousov
c42b43a054 Add a new populate() pager method and extend device pager ops vector
with cdev_pg_populate() to provide device drivers access to it.  It
gives drivers fine control of the pages ownership and allows drivers
to implement arbitrary prefault policies.

The populate method is called on a page fault and is supposed to
populate the vm object with the page at the fault location and some
amount of pages around it, at pager's discretion.  VM provides the
pager with the hints about current range of the object mapping, to
avoid instantiation of immediately unused pages, if pager decides so.
Also, VM passes the fault type and map entry protection to the pager,
allowing it to force the optimal required ownership of the mapped
pages.

Installed pages must contiguously fill the returned region, be fully
valid and exclusively busied.  Of course, the pages must be compatible
with the object' type.

After populate() successfully returned, VM fault handler installs as
many instantiated pages into the process page tables as it sees
reasonable, while still obeying the correct semantic for COW and vm
map locking.

The method is opt-in, pager sets OBJ_POPULATE flag to indicate that
the method can be called.  If pager' vm objects can be shadowed, pager
must implement the traditional getpages() method in addition to the
populate().  Populate() might fall back to the getpages() on per-call
basis as well, by returning VM_PAGER_BAD error code.

For now for device pagers, the populate() method is only allowed to be
used by the managed device pagers, but the limitation is only made
because there is no unmanaged fault handlers which could use it right
now.

KPI designed together with, and reviewed by:	alc
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	3 weeks
2016-12-08 11:26:11 +00:00
Konstantin Belousov
dc5401d240 Move map_generation snapshot value into struct faultstate.
Reviewed by:	alc
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-12-08 10:29:41 +00:00
Konstantin Belousov
272cc3c4d0 Style.
Reviewed by:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-12-08 10:28:51 +00:00
Adrian Chadd
4869f5945e [net80211] add a field for storing a 64 bit TSC. 2016-12-08 07:57:16 +00:00
Adrian Chadd
36c8d0de0f [net80211] begin fleshing out support for channel survey information to be
pushed back up into net80211.
2016-12-08 07:56:25 +00:00
Sepherosa Ziehau
096d83feb9 hyperv/timesync: Support "sent TC" to improve accuracy.
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8723
2016-12-08 05:37:39 +00:00
Sepherosa Ziehau
98cb13b6cc hyperv/vmbus: Utilize vmbus_chan_run_task()
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8686
2016-12-08 05:15:00 +00:00
Alan Cox
e94965d82e Previously, vm_radix_remove() would panic if the radix trie didn't
contain a vm_page_t at the specified index.  However, with this
change, vm_radix_remove() no longer panics.  Instead, it returns NULL
if there is no vm_page_t at the specified index.  Otherwise, it
returns the vm_page_t.  The motivation for this change is that it
simplifies the use of radix tries in the amd64, arm64, and i386 pmap
implementations.  Instead of performing a lookup before every remove,
the pmap can simply perform the remove.

Reviewed by:	kib, markj
Differential Revision:	https://reviews.freebsd.org/D8708
2016-12-08 04:29:29 +00:00
Andriy Voskoboinyk
83faf8fc96 net80211: remove obsolete comment.
The described LOR should be fixed in r302283.
2016-12-07 23:33:59 +00:00
Gavin Atkinson
109005cc14 Switch if_run.c to use a bitmap for debug levels rather than arbitrary
values. This more closely matches other wifi drivers in the tree.
The bitmap levels have been based closely on other drivers (primarily
[u]rtwn(4)) in the hope that one day these can be unified into a shared
wifi-debug framework.

This is the first step of several pieces of work I'm planning on doing
with the run(4) driver. I may well adjust and refine some of the debug
bitmaps at a later date.

Reviewed by:	adrian, avos
Differential Revision:	https://reviews.freebsd.org/D8704
2016-12-07 22:52:12 +00:00
Andriy Voskoboinyk
4a19d71238 net80211 + drivers: convert to ieee80211_crypto_get_key_wepidx().
Proposed by:	adrian
2016-12-07 22:16:07 +00:00
Michael Tuexen
b594081bdf Silence a warning produced by newer versions of gcc.
MFC after:	1 week
2016-12-07 22:01:09 +00:00
Michael Tuexen
49656eefc8 Cleanup the names of SSN, SID, TSN, FSN, PPID and MID.
This made a couple of bugs visible in handling SSN wrap-arounds
when using DATA chunks. Now bulk transfer seems to work fine...
This fixes the issue reported in
https://github.com/sctplab/usrsctp/issues/111

MFC after:	1 week
2016-12-07 19:30:59 +00:00
Robert Watson
52b42f6287 Regnerate system-call definitions following r309677 correcting a whitespace
glitch in syscalls.master.
2016-12-07 16:12:27 +00:00
Robert Watson
82d8d2b8bc Replace spaces with tabs in definition of SCTP system calls, for consistency
with the remainder of the syscalls.master file.  This problem does not occur
in the freebsd32 version of the same system calls.
2016-12-07 16:11:55 +00:00
Eric van Gyzen
3d32d4a7c9 Export the whole thread name in kinfo_proc
kinfo_proc::ki_tdname is three characters shorter than
thread::td_name.  Add a ki_moretdname field for these three
extra characters.  Add the new field to kinfo_proc32, as well.
Update all in-tree consumers to read the new field and assemble
the full name, except for lldb's HostThreadFreeBSD.cpp, which
I will handle separately.  Bump __FreeBSD_version.

Reviewed by:	kib
MFC after:	1 week
Relnotes:	yes
Sponsored by:	Dell EMC
Differential Revision:	https://reviews.freebsd.org/D8722
2016-12-07 15:04:22 +00:00
Andrew Turner
75747c209c Add ACPI support to the arm64 mp code. We use the Multiple APIC Description
Table to find the CPUs to find the CPUs to start. Currently we assume PSCI,
however this assumption is shared with the FDT code.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-12-07 14:35:05 +00:00
Andrew Turner
2b5014f6fe Add ACPI support to the PSCI driver. This checks the Fixed ACPI Description
Table to find if the hardware supports PSCI, and if so what method the
kernel should use to interact with it.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-12-07 14:24:53 +00:00
Ruslan Bukin
20a9f7715e Style fix.
Sponsored by:	DARPA, AFRL
2016-12-07 13:19:19 +00:00
Sepherosa Ziehau
6dbe58e249 hyperv/vmbus: Use pause if possible.
This makes booting on Hyper-V w/ small # of vCPUs work properly.

Reported by:	Hongxiong Xian <v-hoxian microsoft com>, Hongjiang Zhang <honzhan microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft
2016-12-07 08:12:02 +00:00
George V. Neville-Neil
af463464cf Fix a kernel panic in DTrace's rw_iswriter subroutine.
On FreeBSD the sense of rw_write_held() and rw_iswriter() were reversed,
probably due to a cut and paste error. Using rw_iswriter() would cause
the kernel to panic.

Reviewed by:	markj
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D8718
2016-12-07 07:27:47 +00:00
Xin LI
d0155f67a3 Fix typo. 2016-12-07 06:29:01 +00:00
Navdeep Parhar
aa7792f2f6 cxgbe(4): unsigned short isn't large enough to store link speed (which
is in Mbps) for 100Gbps links.

MFC after:	3 days
2016-12-07 04:23:08 +00:00
Adrian Chadd
ba58946fd6 [net80211] flesh out more RX phy information.
I'm teaching my ath10k port to communicate up the per-rate / channel width
information I get from the firmware.

The HT40 flag field should just be retired and instead moved to use the
PHY bandwidth field.
2016-12-07 04:03:51 +00:00
Adrian Chadd
54a95d0d68 [net80211] start refactoring out the "am I a wep / group key!" code.
This is a bunch of pointer arithmetic that is copypasta'ed everywhere.
Let's undo that copypasta.
2016-12-07 04:02:41 +00:00
Mark Johnston
43482f897b Use the official spelling for NULL arguments to typed sysctl handlers.
Reported by:	bde
2016-12-07 01:15:10 +00:00
Andrey V. Elsukov
02784f106e Convert result of hash_packet6() into host byte order.
For IPv4 similar function uses addresses and ports in host byte order,
but for IPv6 it used network byte order. This led to very bad hash
distribution for IPv6 flows. Now the result looks similar to IPv4.

Reported by:	olivier
MFC after:	1 week
Sponsored by:	Yandex LLC
2016-12-06 23:52:56 +00:00
Mark Johnston
77edd8fa00 Provide dummy sysctls for v_cache_count and v_tcached.
Some utilities (notably top(1)) exit if any of their input sysctls don't
exist, and the removal of the above-mentioned PG_CACHE-related sysctls
makes it difficult to run such utilities on different versions of the
kernel without recompiling.

Requested by:	bde
2016-12-06 22:52:45 +00:00
Mark Johnston
10c480e775 Require the STACK option for code that captures stacks of running threads.
stack_machdep.c is compiled if either of the DDB or STACK options is
specified, but stack_save_td_running() isn't useable from DDB. Moreover,
stack_save_td_running() works by raising an NMI on the CPU running the
target thread, and the corresponding handler is compiled only if STACK is
configured.

Reported by:	kib
MFC after:	1 week
2016-12-06 22:48:28 +00:00
Andrew Turner
0afaf183d0 Add the missing gic_common.h include for GIC_BUS_FDT.
Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-12-06 15:16:00 +00:00
Andrew Turner
be04b41da2 Create two GIC ivars to find the bus type and GIC hardware version. These
will be used by the gicv2m and ITS ACPI drivers to only attach to the
correct parent.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-12-06 15:12:14 +00:00
Mateusz Guzik
ef32958e5d ifndef atomic_cas_* in cddl code in preparation for native implementations
This is a temporary change to not require all architectures to import at once.

Discussed with:	jhb
2016-12-06 14:08:49 +00:00
Andrew Turner
c417fba9eb Move the common bit manipulation macros from the GICv3 header to the
common GIC header file.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-12-06 13:55:19 +00:00
Andrew Turner
31b892557f Move the stored signal mask later in the jump buf. It was being clobbered
by a later store of a VFP register.

Sponsored by:	ABT Systems Ltd
2016-12-06 13:46:12 +00:00
Andrew Turner
4d7d72fb23 Adda new common GIC header to handle the common parts of the GICv2 and
GICv3 drivers. For now it just contains common distributor registers.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-12-06 12:57:28 +00:00
Navdeep Parhar
3cbaf64f2e cxgbe(4): Update firmwares from version 1.16.12.0 to 1.16.22.0.
Obtained from:	Chelsio Communications
MFC after:	3 days
Sponsored by:	Chelsio Communications
2016-12-06 12:43:07 +00:00
Andrew Turner
00e61f254c Add the full set of GICD_PIDR* registers
Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-12-06 11:41:19 +00:00
Michael Tuexen
5b495f17a5 Whitespace changes.
The tools using to generate the sources has been updated and produces
different whitespaces. Commit this seperately to avoid intermixing
these with real code changes.

MFC after:	3 days
2016-12-06 10:21:25 +00:00
Luiz Otavio O Souza
ff30498384 Fix the armv6 build after r309553.
Sponsored by:	Rubicon Communications, LLC (Netgate)
2016-12-06 06:15:28 +00:00
Andriy Voskoboinyk
8e61c3f8e3 rsu: fix printf format specifiers. 2016-12-06 06:12:01 +00:00
John Baldwin
a1eff92bc8 Don't attach to Host-PCI bridges with a bad bus number.
If the bus number assigned to a Host-PCI bridge doesn't match the first
bus number in the associated producer range from _CRS, print a warning and
fail to attach rather than panicking due to an assertion failure.

At least one single-socket Dell machine leaves a "ghost" Host-PCI bridge
device in the ACPI namespace that seems to correspond to the I/O hub in
the second socket of a two-socket machine.  However, the BIOS doesn't
configure the settings for this "ghost" bridge correctly, nor does it have
any PCI devices behind it.

Tested by:	royger
MFC after:	2 weeks
2016-12-06 00:36:02 +00:00
Andriy Voskoboinyk
31847d9434 rsu: add hardware crypto support (WEP, TKIP and CCMP).
This change includes firmware commands for key setup +
some additional checking via CAMREAD / CAMWRITE registers.
Nothing (except rsu_delete_key() for pairwise keys) is deferred;
to ensure that things are done in order rsu_set_key() will wait
until key deletion task will be finished.

Tested with Asus USB-N10 (all ciphers).

Differences from initial (reviewed) patch:
- Pause AC queues before disassociation - since CMD_DISCONNECT clears
crypto state all pending frames must be processed / dropped before it.
- Check sc_running flag before trying to set static keys.
- Clear key index from bitmap even when firmware command fails
(it will be invalidated via CAMWRITE anyway).

Reviewed by:	adrian, kevlo
Tested by:	kevlo
Differential Revision:	https://reviews.freebsd.org/D8706
2016-12-06 00:13:49 +00:00
Rick Macklem
a5d19b81b4 Fix the NFSv4.1 server for Open reclaim after a reboot.
The NFSv4.1 server failed to update the nfs-stablerestart file for
a client when the client was issued its first Open. As such, recovery
of Opens after a server reboot failed with NFSERR_NOGRACE.
This patch fixes this.
It also changes the code so that it malloc()'s the 1024 byte array
instead of allocating it on the kernel stack for both NFSv4.0 and NFSv4.1.
Note that this bug only affected NFSv4.1 and only when clients attempted
to reclaim Opens after a server reboot.

MFC after:	2 weeks
2016-12-05 22:36:25 +00:00
Kristof Provost
c3e14afc18 pflog: Correctly initialise subrulenr
subrulenr is considered unset if it's set to -1, not if it's set to 1.
See contrib/tcpdump/print-pflog.c pflog_print() for a user.

This caused incorrect pflog output (tcpdump -n -e -ttt -i pflog0):
  rule 0..16777216(match)
instead of the correct output of
  rule 0/0(match)

PR:		214832
Submitted by:	andywhite@gmail.com
2016-12-05 21:52:10 +00:00
Michal Meloun
65d5084f54 Fix build breakage caused by r309531.
Reported by: andrew
MFC after: 2 weeks
X-MFC with: r309531
2016-12-05 15:55:51 +00:00
Konstantin Belousov
3dd3c4503b Release DMAR table after using it.
Reported and tested by:	hps
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-12-05 11:42:09 +00:00
Konstantin Belousov
85d99487b8 Rename fast taskqueues used by DMAR to avoid naming conflict of the
sleepable and spin mutexes created by the queues.

Reported and tested by:	hps
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-12-05 11:41:09 +00:00
Andrew Turner
7abeae41fb Remove an unneeded header. It was used when we had an arm64 specific GIC
driver, however with INTRNG this has been merged into a common arm driver.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-12-05 11:40:54 +00:00
Justin Hibbits
0a82e6f09a Use trunc_page() instead of rolling my own in pmap_track_page() 2016-12-05 02:27:50 +00:00
Andriy Voskoboinyk
c057023b75 rsu: fix RSSI reporting, partially revert r288414.
- Append RCR_APP_PHYSTS bit after firmware loading - otherwise
firmware will reset the register and this modification will be lost.
(without it Rx PHY descriptor section will contain garbage).
- Check if R92S_RXDW0_PHYST bit is set (like it is done in rtwn(4)) -
even if infosz is non-zero the section may not contain anything useful.
- In case, if descriptor is absent (A-MPDU?) use last calibrated RSSI
(rtwn(4) uses RSSI from the previous (sub)frame; probably, this
approach should be used here too).

Tested with Asus USB-N10, STA mode.
2016-12-04 21:40:49 +00:00
Konstantin Belousov
435da98564 Restructure the code to handle reporting of non-exited processes from
wait(2).
- Do not acquire the process spinlock if neither WTRAPPED nor WUNTRACED
  options were passed [1].
- Extract the code to report alive process into a new helper
  report_alive_proc() and use it for trapped, stopped and continued
  childrens.

Note that the process spinlock is required around the WTRAPPED and
WUNTRACED tests, because P_STOPPED_TRACE and P_STOPPED_SIG flags are
set before other threads are stopped at the suspension point, and that
threads increment p_suspcount while owning only the process spinlock,
the process lock is dropped by them.  If the spinlock is not taken for
tests, the syscall thread might miss both p_suspcount increment and
wakeup in wakeup in thread_suspend_switch().

Based on the submission by:	mjg [1]
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-12-04 20:44:58 +00:00
Michal Meloun
6f1eb3052e Fixes for NVIDIA Tegra124 clocks:
- EMC clock have standard peripheral clock block. Use it.
 - Implement full frequency set method for PLLD2. This PLL
   is used as HDMI pixel clock so we must be able to set it
   to wide range of frequencies, within 5% tolerance allowed
   by HDMI specification. Due to this, full state space search
   (over m, n, p fields) is necessary.

MFC after: 3 weeks
2016-12-04 16:04:22 +00:00
Michal Meloun
3b29466b94 Clock framework fixes:
- The clk_test_freq() (aka CLK_SET_DRYRUN) doesn't change frequency,
   don't cache it result.
 - Fix busy condition for clk_set_freq().

MFC after: 3 weeks
2016-12-04 16:02:59 +00:00
Michal Meloun
bea8daa364 Add IDs for HDA codecs found on Nvidia Tegra SoCs.
MFC after: 2 weeks
2016-12-04 15:28:30 +00:00
Michal Meloun
bdbc1b764d Implement fake pmap_mapdev_attr() for ARMv6.
This function is referenced, but never called from DRM2 code. Also,
real behavior of pmap_mapdev_attr() in ARM world is unclear as we don't
have any additional attribute for a device memory type.

MFC after: 2 weeks
2016-12-04 15:27:39 +00:00
Pyun YongHyeon
6861837c7a Fix too low volume on MSI H170 GAMING M3 board by poking vendor
specific COEF.
2016-12-04 05:55:18 +00:00
Pyun YongHyeon
b899778526 Recognize RealTek ALC1150 7.1 channel HD audio codec. 2016-12-04 05:46:30 +00:00
Conrad Meyer
e2a65c0031 ioat(4): Compile on i386
Truncate BUS_SPACE_MAXADDR_40BIT to essentially BUS_SPACE_MAXADDR_32BIT on
platforms with 32-bit bus_addr_t (i.e., i386).

PR:		215034
Reported by:	ngie@
Sponsored by:	Dell EMC Isilon
2016-12-04 04:04:57 +00:00
Justin Hibbits
aa38c69b74 Fix a typo (move parenthesis to correct location in the line).
Before this, it would cause the one consumer of this API in powerpc usage
(dev/dpaa) to set the PTE WIMG flags to empty instead of --M-, making the
cache-enabled buffer portals non-coherent.
2016-12-04 02:15:46 +00:00
Enji Cooper
006aa95c01 Unbreak "make depend" with sys/modules/ioat by adding opt_ddb.h to SRCS
MFC after: 2 weeks
2016-12-04 02:08:40 +00:00
Ravi Pokala
4d12189b6c Build smbios.ko as a module for amd64 and i386
For whatever reason, smapi, smbios, vpd are all under the "bios" directory.
smapi is only for i386, so the entire "bios" directory is only built for
i386. Break smapi out, and make only it i386-specific. Then, build the
"bios" directory for both amd64 and i386.

Reviewed by:	imp
MFC after:	1 week
Sponsored by:	Panasas
Differential Revision:	https://reviews.freebsd.org/D8609
2016-12-03 17:54:08 +00:00
Andriy Voskoboinyk
4786190d2f rtwn: fix bitmap size calculation.
Tested with RTL8188CE, STA mode.
2016-12-03 17:27:10 +00:00
Andriy Voskoboinyk
6127805391 rsu: fix frame processing in the Rx path (similar to r292207).
- Fill in Rx radiotap header correctly (for every packet in a chain;
not once per chain).
- Fix rate / flags fields in Rx radiotap.
- Add debug messages for discarded frames.
- Pass received control (< sizeof(struct ieee80211_frame)) frames
to net80211 (if allowed by device filter; cannot happen yet).

Tested with Asus USB-N10.

Differential Revision:	https://reviews.freebsd.org/D5723
2016-12-03 16:02:53 +00:00
Kevin Lo
3094a376e4 Fix logic error so the R92C_TDECTRL register value is updated correctly.
Reviewed by:	avos
2016-12-03 14:41:53 +00:00
Andriy Voskoboinyk
bcb071810a rsu: remove unused structures / variables. 2016-12-03 14:26:58 +00:00
Adrian Chadd
707210ff0e [ath] use the correct AMPDU frame limit for the given node, rather than the global config.
This is important in hostap, ibss, (11s at some magical future date, etc)
where different nodes may have smaller limits.

Oops!

MFC after:	1 week
Relnotes:	Yes
2016-12-03 02:47:41 +00:00
Adrian Chadd
4774b99992 [net80211] prepare for 11ac aware NICs that want to know per-vdev channel and centre frequencies.
* ic_freq is the centre of the primary channel, not the centre of the
  HT40/HT80/etc channel.  Add a method to access that.
* Add a method to access the centre of the primary channel, including
  knowing the centre of the 5/10/20/40/80, versus the primary channel.
  Ie, it's the centre of the 40, 80, 160MHz channel.
* Add a method to access the centre frequency of the secondary 80MHz
  channel - we don't support VHT yet, but when we do.
* Add methods to access the current channel and the per-dev desired
  channel.  Ideally drivers that do full offload with a per-vap channel
  configuration should use the vap channel, NOT ic_curchan.
  Non-offload drivers that require net80211 to change the channel should
  be accessing ic_curchan.
2016-12-03 02:45:18 +00:00
Luiz Otavio O Souza
3c27ea76f0 Allow simultaneous access to switch device, there is no reason to prevent
it.

Remove bogus wrappers and use the kernel defaults.

While here, use DEVMETHOD_END.

Obtained from:	pfSense
MFC after:	2 weeks
Sponsored by:	Rubicon Communications, LLC (Netgate)
2016-12-03 01:55:38 +00:00
Eric van Gyzen
ff07dd913e thr_set_name(): silently truncate the given name as needed
Instead of failing with ENAMETOOLONG, which is swallowed by
pthread_set_name_np() anyway, truncate the given name to MAXCOMLEN+1
bytes.  This is more likely what the user wants, and saves the
caller from truncating it before the call (which was the only
recourse).

Polish pthread_set_name_np(3) and add a .Xr to thr_set_name(2)
so the user might find the documentation for this behavior.

Reviewed by:	jilles
MFC after:	3 days
Sponsored by:	Dell EMC
2016-12-03 01:14:21 +00:00
Pedro F. Giffuni
fca15474a0 ext2fs: renumber the license clauses to avoid skipping #3.
This is to keep consistency with other files, and help license-checking
utilities determine the number of clauses that apply.

No functional change.
2016-12-02 19:47:23 +00:00
Mateusz Guzik
a2d3554542 vfs: provide fake locking primitives for the crossmp vnode
Since the vnode is only expected to be shared locked, we can save a
little overhead by only pretending we are locking in the first place.

Reviewed by:	kib
Tested by:	pho
2016-12-02 18:03:15 +00:00
Alan Cox
8804a2b030 Eliminate a stale comment; vm_radix_prealloc() was replaced in r254141.
MFC after:	3 days
2016-12-02 16:29:30 +00:00
Ryan Stone
669f39b29c Revert r309372
The bug intended to be fixed by r309372 was already addressed by r296178,
so revert my change.

Reported by:	seph
2016-12-02 15:38:34 +00:00
Warner Losh
158c18ffb4 dd is currently a bootstrap tool. It really doesn't have any business
being a bootstrap tool. However, for reproducible build output,
FreeBSD added dd status=none because it was otherwise difficult to
suppress the status information, but retain any errors that might
happen. There's no real reason that dd has to be a build tool, other
than we use status=none unconditional. Remove dd from a bootstrap tool
entirely by only using status=none when available. This may also help
efforts to build the system on non-FreeBSD hosts as well.

Differential Revision: https://reviews.freebsd.org/D8605
2016-12-02 14:44:38 +00:00
Julian Elischer
426b3d047a Changes to allow the patching of packets with an offset (and other changes.. see man page)
PR:	206185
Submitted by:	Dmitry Vagin <daemon-hammer@ya.ru>
MFC after:	 1 week
Relnotes:	yes (also ng_checksum node)
2016-12-02 10:47:10 +00:00
Hans Petter Selasky
de83258d59 Remove useless NULL checks.
NULL is not returned when allocating memory passing the M_WAITOK flag.

Submitted by:		trasz @
Differential Revision:  https://reviews.freebsd.org/D5772
Sponsored by:           Mellanox Technologies
MFC after:		1 week
2016-12-02 09:41:54 +00:00
Hans Petter Selasky
0e493ed3a5 Fix return value from ng_uncallout().
callout_stop() recently started returning -1 when the callout is already
stopped, which is not handled by the netgraph code. Properly filter
the return value. Netgraph callers only want to know if the callout
was cancelled and not draining or already stopped.

Discussed with:		julian, glebius
MFC after:		2 weeks
2016-12-02 09:29:22 +00:00
Hans Petter Selasky
c6e6b4fe3b Fix for endless recursion in the ACPI GPE handler during boot.
When handling a GPE ACPI interrupt object the EcSpaceHandler()
function can be called which checks the EC_EVENT_SCI bit and then
recurse on the EcGpeQueryHandler() function. If there are multiple GPE
events pending the EC_EVENT_SCI bit will be set at the next call to
EcSpaceHandler() causing it to recurse again via the
EcGpeQueryHandler() function. This leads to a slow never ending
recursion during boot which prevents proper system startup, because
the EC_EVENT_SCI bit never gets cleared in this scenario.

The behaviour is reproducible with the ALASKA AMI in combination with
a newer Skylake based mainboard in the following way:

Enter BIOS and adjust the clock one hour forward. Save and exit the
BIOS. System fails to boot due to the above mentioned bug in
EcGpeQueryHandler() which was observed recursing multiple times.

This patch adds a simple recursion guard to the EcGpeQueryHandler()
function and also also adds logic to detect if new GPE events occurred
during the execution of EcGpeQueryHandler() and then loop on this
function instead of recursing.

Reviewed by:		jhb
MFC after:		2 weeks
2016-12-02 08:21:08 +00:00