Michael Tuexen [Wed, 14 Sep 2016 14:48:00 +0000 (14:48 +0000)]
Ensure that the IPPROTO_TCP level socket options
* TCP_KEEPINIT
* TCP_KEEPINTVL
* TCP_KEEPIDLE
* TCP_KEEPCNT
always always report the values currently used when getsockopt()
is used. This wasn't the case when the sysctl-inherited default
values where used.
Ensure that the IPPROTO_TCP level socket option TCP_INFO has the
TCPI_OPT_ECN flag set in the tcpi_options field when ECN support
has been negotiated successfully.
Bruce Evans [Wed, 14 Sep 2016 12:57:40 +0000 (12:57 +0000)]
Use the MI macro TRAPF_USERMODE() instead of open-coded checks for
SEL_UPL and sometimes PSL_VM. This is just a style change on amd64,
but on i386 it fixes 1 unimportant place where the PSL_VM check was
missing and starts fixing 1 important place where the PSL_VM check
had a logic error.
Fix logic errors in treating vm86 bioscall mode as kernel mode. The
main place checked all the necessary flags, but put the necessary
parentheses for the PSL_VM and PCB_VM86CALL checks in the wrong
place. The broken case is only reached if a vm86 bioscall uses a
%cs which is nonzero mod 4, but that is unusual -- most bios calls
start with %cs = 0xc000 or 0xf000 and rarely change it. Another
place was missing the check for PCB_VM86CALL, but was only reachable
if there are bugs virtualizing PSL_I.
Add a macro TF_HAS_STACKREGS() and use this instead of converting
open-coded checks of SEL_UPL, etc. to TRAPF_USERMODE() when we only
care about whether the frame has stack registers. This fixes 3
places in my recent fix for register variables in vm86 mode where I
messed up the PSL_VM check and cleans up other places.
Improve USB polling mode by not locking any mutexes, asserting any
mutexes or using any callouts when active.
Trying to lock a mutex when KDB is active or the scheduler is stopped
can result in infinite wait loops. The same goes for calling callout
related functions which in turn lock mutexes.
If the USB controller at which a USB keyboard is connected is idle
when KDB is entered, polling the USB keyboard via USB will always
succeed. Else polling may fail depending on which state the USB
subsystem and USB interrupt handler is in. This is unavoidable unless
KDB can wait for USB interrupt threads to complete before stalling the
CPU(s).
Tested by: Bruce Evans <bde@freebsd.org>
MFC after: 4 weeks
net80211: improve error checking in ieee80211_parse_{wpa,rsn}()
- Add few checks for group/pairwise ciphers into
ieee80211_parse_{wpa,rsn}().
- Split error code and cipher value in wpa_cipher() / rsn_cipher(); current
hack with (1 << 32) does not work - it's 1, not 0 (detected by CSA).
- Return IEEE80211_REASON_UNSUPP_RSN_IE_VERSION instead of
IEEE80211_REASON_IE_INVALID when version field is not equal to RSN_VERSION.
Tested with wpi(4) / urtwn(4) (HOSTAP mode).
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D7887
Fix swap tables between sets when this functional is enabled.
We have 6 opcode rewriters for table opcodes. When `set swap' command
invoked, it is called for each rewriter, so at the end we get the same
result, because opcode rewriter uses ETLV type to match opcode. And all
tables opcodes have the same ETLV type. To solve this problem, use
separate sets handler for one opcode rewriter. Use it to handle TEST_ALL,
SWAP_ALL and MOVE_ALL commands.
Andrew Turner [Tue, 13 Sep 2016 14:10:49 +0000 (14:10 +0000)]
Add a warning about a known erratum we have observed on ThunderX pass 1.1.
As this is evaluation hardware with only a few users, and there is a lack
of information add a warning when booting on this hardware.
Reported by: cognet
Obtained from: ABT Systems Ltd
MFC after: Instant
Sponsored by: The FreeBSD Foundation
net80211: fix possible panic in adhoc mode (INIT -> RUN state transition).
In case if there is already running interface, a second non-sta
interface will omit scanning, going directly to RUN state. Handle
this case for adhoc mode appropriately.
John Baldwin [Mon, 12 Sep 2016 18:06:42 +0000 (18:06 +0000)]
Make device_quiet() an attachment property.
In particular, reset the DF_QUIET flag when detaching from a device so
that a driver that marks a device quiet doesn't dictate policy for a
different driver that may claim the device in the future.
- Certain pic_assign_cpu, e.g. msi_assign_cpu can have quite a long
call chain. For msi_assign_cpu, mutex makes complex PCI bridge
drivers more tricky, e.g. sleep can note be called, etc, it will
be pretty tricky for upcoming Hyper-V PCI bridge driver for PCI
pass-through.
- It is not used on any hot code path nor non-sleepable context, so
sx should have the same effect as mutex.
PIC list is still protected by mutex to keep suspend/resume work.
Adrian Chadd [Mon, 12 Sep 2016 04:55:13 +0000 (04:55 +0000)]
[ath] set the relevant TOA/TOD locationing bits when trying to do locationing.
* Don't do RTS/CTS - experiments show that we get ACK frames for each of them
and this ends up causing the timestamps to look all funny.
* Set the HAL_TXDESC_POS bit, so the AR9300 HAL sets up the hardware to return
location and CSI information.
- evdev_set_methods call is not required if actual methods are no-ops
- evdev_set_serial is also optional if there is no meaningful input device
identifier
- evdev_set_id on the other hand is mandatory, so set virtual bus with
dummy vendor/product/version
Add generic evdev support to touchscreen part of ti_adc: two absolute
coordinates + button touch to indicate pen position. Pressure value
reporting is not implemented yet.
evdev is a generic input event interface compatible with Linux
evdev API at ioctl level. It allows using unmodified (apart from
header name) input evdev drivers in Xorg, Wayland, Qt.
This commit has only generic kernel API. evdev support for individual
hardware drivers like ukbd, ums, atkbd, etc. will be committed later.
Project was started by Jakub Klama as part of GSoC 2014. Jakub's
evdev implementation was later used as a base, updated and finished
by Vladimir Kondratiev.
Submitted by: Vladimir Kondratiev <wulf@cicgroup.ru>
Reviewed by: adrian, hans
Differential Revision: https://reviews.freebsd.org/D6998
Add FPU_KERN_NOCTX flag to the fpu_kern_enter() function on amd64.
The flag specifies that the block which uses FPU must be executed in
critical section, i.e. take no context switches, and does not need an
FPU save area during the execution.
It is intended to be applied around fast and short code pathes where
save area allocation is impossible or undesirable, due to context or
due to the relative cost of calculation vs. allocation.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
a10_mmc: Remove completly the PIO code now all access is done by DMA.
Rename registers as in the manual.
Do a hard reset of the controller before a soft one.
Since DMA is always used remove dependancy on allwinner_soc_family, it was used
to differentiate SoC as the fdt compatible string were the same.
Alan Cox [Sat, 10 Sep 2016 16:49:25 +0000 (16:49 +0000)]
Various changes to pmap_ts_referenced()
Move PMAP_TS_REFERENCED_MAX out of the various pmap implementations and
into vm/pmap.h, and describe what its purpose is. Eliminate the archaic
"XXX" comment about its value. I don't believe that its exact value, e.g.,
5 versus 6, matters.
Update the arm64 and riscv pmap implementations of pmap_ts_referenced()
to opportunistically update the page's dirty field.
On amd64, use the PDE value already cached in a local variable rather than
dereferencing a pointer again and again.
cache: improve scalability by introducing bucket locks
An array of bucket locks is added.
All modifications still require the global cache_lock to be held for
writing. However, most readers only need the relevant bucket lock and in
effect can run concurrently to the writer as long as they use a
different lock. See the added comment for more details.
This is an intermediate step towards removal of the global lock.
Alexander Motin [Sat, 10 Sep 2016 09:37:41 +0000 (09:37 +0000)]
Switch random_get_pseudo_bytes() shim to arc4rand().
Our shim for Solaris random_get_bytes() uses read_random(), that looks
reasonable, since it guaranties reliably seeded random data. On the other
side Solaris random_get_pseudo_bytes() does not provide this guarantie,
and its original Solaris implementation is equivalent to our arc4rand(),
using software crypto without stressing slower hardware RNG.
Bruce Evans [Fri, 9 Sep 2016 15:53:42 +0000 (15:53 +0000)]
Pass the trap type and code down from db_trap() to db_stop_at_pc() so
that the latter can easily determine what the trap type actually is
after callers are fixed to encode the type unambigously.
ddb currently barely understands breakpoints, and it treats all
non-breakpoints as single-step traps. This works OK for stopping
after every instruction when single-stepping, but is broken for
single-stepping with a count > 1 (especially with a large count).
ddb needs to stop on the first non-single-step trap while single-
stepping. Otherwise, ddb doesn't even stop the first time for
fatal traps and external breakpoints like the one in kdb_enter().
Bruce Evans [Fri, 9 Sep 2016 14:09:50 +0000 (14:09 +0000)]
Fix stopping when the specified breakpoint count is reached. The
countdown was done correctly, but the action when the count was not
reduced to 0 was to fall through to generic code which almost always
stopped.
Bruce Evans [Fri, 9 Sep 2016 13:23:07 +0000 (13:23 +0000)]
Give the full syntax of the 'count' arg for all commmands that support
it. This arg is most interesting for the 'break' command where it
never worked, and for the step command where it is powerful but too
fragile to use much.
Give the full syntax of the 'addr' arg for these commands and some
others. Rename it from 'address' for the generic command.
Fix description of how 'count' is supposed to work for the 'break'
command.
Don't (mis)describe the syntax of the comma for the 'step' command.
Expand the description for the generic command.
Give the full syntax for the 'examine' command. It was also missing
the possible values for the modifier.
Fix mdoc syntax error for the 'search' command.
Remove FUD about consequences of not having a trap handler for the
'search' command.
Ed Schouten [Fri, 9 Sep 2016 07:10:50 +0000 (07:10 +0000)]
Properly patch up dirname()/basename() calls to not clobber ent->log.
It turns out that we had a couple of more calls to dirname()/basename()
in newsyslog(8) that assume the input isn't clobbered. This is bad,
because it apparently breaks log rotation now that the new dirname()
implementation has been merged.
Fix this by first copying the input and then calling
dirname()/basename(). While there, improve the naming of variables in
this function a bit.
Adrian Chadd [Fri, 9 Sep 2016 04:45:25 +0000 (04:45 +0000)]
[ath_hal] fixes for finer grain timestamping, some 11n macros
* change the HT_RC_2_MCS to do MCS0..23
* Use it when looking up the ht20/ht40 array for bits-per-symbol
* add a clk_to_psec (picoseconds) routine, so we can get sub-microsecond
accuracy for the math
* .. and make that + clk_to_usec public, so higher layer code that is
returning clocks (eg the ANI diag routines, some upcoming locationing
experiments) can be converted to microseconds.
Whilst here, add a comment in ar5416 so i or someone else can revisit the
latency values.
On big endian hardware that uses 1 byte bool a type mismatch of bool vs int will
cause the least signifcant byte of db_cmd_loop_done to be set, but the MSB to be
read, and read as 0. This causes ddb to stay in an infinite loop.
Take advantage of new bmake feature to only consider Makefile.depend
as invalidating DIRDEPS_CACHE.
When bootstrapping allow more filtering via .MAKE.DEPENDFILE_BOOTSTRAP_SED
Move some comments back to where they make sense.
meta.sys.mk: add META_COOKIE_TOUCH and META_NOPHONY to better handle some
targets in meta mode vs non-meta mode.
Also use .MAKE.META.IGNORE_PATHS to ignore mtime of makefiles - which do
not matter in meta mode.
o meta.c: move handling of .MAKE.META.IGNORE_* to meta_ignore()
so we can call it before adding entries to missingFiles.
Thus we do not track files we have been told to ignore.
o meta_oodate: apply .MAKE.META.IGNORE_FILTER (if defined) to
pathnames, and skip if the expansion is empty.
Useful for dirdeps.mk when checking DIRDEPS_CACHE.
o meta.c: remove all missingFiles entries that match a deleted
dir.
o main.c: set .ERROR_CMD if possible.
Brooks Davis [Thu, 8 Sep 2016 22:38:20 +0000 (22:38 +0000)]
Reduce duplicate NOASM and PSEUDO definitions
The initial value of NOASM is nearly the same in all cases and the
initial value of PSEUDO is the same in all cases so reduce duplication
(and hopefully, future merge conflicts) by machine independent defaults.
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