scottl [Fri, 4 Nov 2016 16:56:36 +0000 (16:56 +0000)]
asc/ascq 44/0 is typically a non-transient, permanent error (at least until
the components are reset). Therefore retries are pointless. This is very
visible in SATL systems, for example an LSI SAS controller and a SATA HDD/SSD.
Reviewed by: ken
Obtained from: Netflix
MFC after: 3 days
gonzo [Fri, 4 Nov 2016 16:24:38 +0000 (16:24 +0000)]
[gpio] Add GPIO driver for Intel Bay Trail SoC
Bay Trail has three banks of GPIOs exposed to userland as /dev/gpiocN,
where N is 1, 2, and 3. Pins in each bank are pre-named to match names
on boards schematics: GPIO_S0_SCnn, GPIO_S0_NCnn, and GPIO_S5_nn.
Controller supports edge-triggered and level-triggered interrupts but
current version of the driver does not have interrupts support
kib [Fri, 4 Nov 2016 12:58:50 +0000 (12:58 +0000)]
Do not sleep in vm_wait() if pagedaemon did not yet started. Panic instead.
Requests which cannot be satisfied by allocators at boot time often
have unrealizable parameters. Waiting for the pagedaemon' start would
hang the boot if done in the thread0 context and just never succeed if
executed from another thread. In fact, for very early stages, sleep
attempt panics with obscure diagnostic about the scheduler state, and
explicit panic in vm_wait() makes the investigation much shorter by
cut off the examination of the thread and scheduler.
Theoretically, some subsystem might grab a resource to exhaustion, and
free it later in the boot process. If this unlikely scenario does
appear for real, the way to diagnose the trouble can be revisited.
Reported by: emaste
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D8421
jmcneill [Thu, 3 Nov 2016 23:22:04 +0000 (23:22 +0000)]
Add support for Allwinner H3 audio codec.
The audio controller in the H3 is more or less the same as A10/A20 except
some registers are shuffled around. The mixer interface, however, is
completely different between SoCs. Separate a10_mixer_class and
h3_mixer_class implementations are now made available. This will also make
adding support for other SoCs easier in the future.
adrian [Thu, 3 Nov 2016 23:05:39 +0000 (23:05 +0000)]
[ath] add the MIMO per-chain RSSI and noise floor information.
This is a long time coming. The general pieces have been floating around
in a local repo since circa 2012 when I dropped the net80211 support
into the tree.
This allows the per-chain RSSI and NF to show up in 'ifconfig wlanX list sta'.
I haven't yet implemented the EVM hookups so that'll show up; that'll come
later.
Thanks to Susie Hellings <susie@susie.id.au> who did the original work
on this a looong time ago for a company we both worked at.
Replace basename(3) by a thread-safe implementation.
Now that the changes to the dirname(3) function had some time to settle,
let's go ahead and use the same approach for replacing basename(3) by a
simple implementation that modifies the input string, thereby making it
thread-safe and guaranteed to succeed.
Unlike dirname(3), this function already had a thread-safe variant
basename_r(3). This function had its own set of problems, like having an
upper bound on the pathname length. Keep this function around for
compatibility, but remove most references from the man page. Make the
man page more similar to that of dirname(3).
As the basename_r(3) function is only provided by FreeBSD (and Bionic),
depending on its use is even more implementation defined than assuming
that basename(3) is thread-safe.
alc [Thu, 3 Nov 2016 16:44:55 +0000 (16:44 +0000)]
In vm_fault()'s loop over the shadow chain, move a comment describing our
invariants to a better place. Also, add two comments concerning the
relationship between the map and vnode locks.
https://www.illumos.org/issues/6051
Currently lzc_receive() requires that its snapname argument is a snapshot name
(contains '@').
zfs receive allows to specify just a dataset name and would try to deduce the
snapshot name from the stream.
I propose to allow lzc_receive() to do the same.
That seems to be quite easy to implement, it requires only a small amount of
logic, it does not require any additional system calls or any additional data
from the stream.
The benefit is that the new behavior would allow to keep the snapshot names the
same between the sender and receiver at zero cost, without a need to pass the
names out of band.
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Andriy Gapon <avg@icyb.net.ua>
MFC after: 2 weeks
cem [Wed, 2 Nov 2016 23:18:16 +0000 (23:18 +0000)]
ioat(4): Read CHANSTS register for suspended/halted checks
The device doesn't accurately update the CHANCMP address with the device state
when the device is suspended or halted. So, read the CHANSTS register to check
for those states.
We still need to read the CHANCMP address for the last completed descriptor.
avg [Wed, 2 Nov 2016 16:15:49 +0000 (16:15 +0000)]
Add support for microcode update on newer AMD CPUs (10h+)
This includes new code for parsing microcode files as well as
the kernel-side change to apply the update on all processors
at the same time.
Developed with help from Borislav Petkov, formerly bp@amd64.org.
Tested using Athlon II X2 processor on a system where BIOS does
not have the latest microcode version:
/boot/firmware/microcode_amd.bin: updating cpu /dev/cpuctl0 to revision 0x10000c7... done.
The microcode file is taken from here:
https://web.archive.org/web/20160528230514/http://www.amd64.org/microcode.html
(note that the original site seems to be down at the moment)
It can also be found here:
https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/amd-ucode
scottl [Wed, 2 Nov 2016 15:13:25 +0000 (15:13 +0000)]
Add a fallback to the device mapper logic. We've seen systems in the field
that are apparently misconfigured by the manufacturer and cause the mapping
logic to fail. The fallback allows drive numbers to be assigned based on the
PHY number that they're attached to. Add sysctls and tunables to overrid
this new behavior, but they should be considered only necessary for debugging.
fabient [Wed, 2 Nov 2016 15:11:23 +0000 (15:11 +0000)]
In rtadvd, interface lookup calls if_indextoname() many times in a loop,
(it takes a long time on systems with many interfaces)
without reason and without checking its return value.
andrew [Wed, 2 Nov 2016 13:10:08 +0000 (13:10 +0000)]
Allow an SMP kernel to boot on Cortex-A8:
* Rename ARM_HAVE_MP_EXTENSIONS to ARM_USE_MP_EXTENSIONS and extend it to
handle more cases, including when SMP is not enabled.
* Check ARM_USE_MP_EXTENSIONS when building for ARMv7+, even if no SMP.
* Use ARM_USE_MP_EXTENSIONS in pmap-v6.c to detect when to set PRRR_NS1.
With this we should be able to boot on all ARMv7+ Cortex-A cores with
32-bit support.
kib [Wed, 2 Nov 2016 12:43:15 +0000 (12:43 +0000)]
Allow some dotdot lookups in capability mode.
If dotdot lookup does not escape from the file descriptor passed as
the lookup root, we can allow the component traversal. Track the
directories traversed, and check the result of dotdot lookup against
the recorded list of the directory vnodes.
Dotdot lookups are enabled by sysctl vfs.lookup_cap_dotdot, currently
disabled by default until more verification of the approach is done.
Disallow non-local filesystems for dotdot, since remote server might
conspire with the local process to allow it to escape the namespace.
This might be too cautious, provide the knob
vfs.lookup_cap_dotdot_nonlocal to override as well.
Idea by: rwatson
Discussed with: emaste, jonathan, rwatson
Reviewed by: mjg (previous version)
Tested by: pho (previous version)
Sponsored by: The FreeBSD Foundation
MFC after: 2 week
Differential revision: https://reviews.freebsd.org/D8110
trasz [Wed, 2 Nov 2016 09:43:19 +0000 (09:43 +0000)]
Fix getfsstat(2) with MNT_WAIT to not skip filesystems that are in the
process of being unmounted. Previously it would skip them, even if the
unmount eventually failed eg due to the filesystem being busy.
This behaviour broke autounmountd(8) - if you tried to manually unmount
a mounted filesystem, using 'automount -u', and the autounmountd attempted
to refresh the filesystem list in that very moment, it would conclude that
the filesystem got unmounted and not try to unmount it afterwards.
tsoome [Wed, 2 Nov 2016 06:37:35 +0000 (06:37 +0000)]
efinet_dev_print should honor verbose option.
lsdev should display detailed information about net devices only with -v
switch. This will make EFI and BIOS version of the loader to have the
same behavior.
gonzo [Wed, 2 Nov 2016 01:27:20 +0000 (01:27 +0000)]
[psm] Fix choosing wrong mode for synaptic device + trackpoint
With guest trackpoint present trackpoint probing switched synaptics
device to absolute mode with different protocol instead of keeping it
in relative mode.
jhibbits [Wed, 2 Nov 2016 00:57:04 +0000 (00:57 +0000)]
Merge i.MX and PowerPC SDHCI drivers
Summary:
i.MX5 and PowerPC use a very similar eSDHC controller, which is also
similar to the uSDHC controller used by i.MX6. The imx_sdhci driver works
almost completely with PowerPC, with some minor tweaks.
There is one caveat with this: reset currently does not work on PowerPC, so has
been #ifdef'd out until this can be tracked down and fixed. If resets are done
the controller will timeout all data transactions. Without a reset, it appears
to work just fine.
This is part 3, following up r308186 and r308187.
Test Plan:
This has been tested on a PowerPC QorIQ P1022 board. It has not been
tested on i.MX, but no regressions are expected.
jhibbits [Wed, 2 Nov 2016 00:54:39 +0000 (00:54 +0000)]
Toggle card insert/remove interrupt enable bits on events
Some controllers (namely Freescale's eSDHC, tested) will continue to assert
the card removed or card insert interrupts even after being handled. To work
around this, disable watching the interrupt that just occurred until the
opposite interrupt is triggered.
Linux has a similar change in its driver to address the same problem.
ivadasz [Tue, 1 Nov 2016 22:38:26 +0000 (22:38 +0000)]
[iwm] Get rid of SYNC_RESP_STRUCT and SYNC_RESP_PTR macros.
* SYNC_RESP_STRUCT and SYNC_RESP_PTR originate from the OpenBSD version of
iwm, and they weren't serving any real purpose in the FreeBSD port.
* We just do a single bus_dmamap_sync for syncing the complete received frame,
instead of explicitly bus_dmamap_sync-ing subranges of the frame like in
the OpenBSD iwm code.
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D7939
jonathan [Tue, 1 Nov 2016 21:27:42 +0000 (21:27 +0000)]
Add rules to build LLVM IR binaries and libraries.
Running `make libfoo.ll` or `make libfoo.bc` within a library directory
will now give us an LLVM IR version of the library, and `make foo.full.ll`
or `make foo.full.bc` will give us an IR version of a binary.
As part of this change, we add an LLVM_LINK variable to sys.mk that can be
specified/overridden using an external toolchain.
cem [Tue, 1 Nov 2016 19:18:54 +0000 (19:18 +0000)]
ioat(4): Allocate contiguous descriptors
This allows us to make strong assertions about descriptor address
validity. Additionally, future generations of the ioat(4) hardware will
require contiguous descriptors.
cem [Tue, 1 Nov 2016 19:18:52 +0000 (19:18 +0000)]
ioat(4): Simplify by removing dynamic scaling
This paves the way for a contiguous descriptor array.
A contiguous descriptor array has the benefit that we can make strong
assertions about whether an address is a valid descriptor or not. The
other benefit is that future generations of I/OAT hardware will require
a contiguous descriptor array anyway. The downside is that after system
boot, big chunks of contiguous memory is much harder to find. So
dynamic scaling after boot is basically impossible.
loos [Tue, 1 Nov 2016 18:42:44 +0000 (18:42 +0000)]
Stop abusing from struct ifnet presence to determine the packet direction
for dummynet, use the correct argument for that, remove the false coment
about the presence of struct ifnet.
lidl [Tue, 1 Nov 2016 18:18:09 +0000 (18:18 +0000)]
Revisit blacklistd support in ftpd
Enhance blacklistd support to not log anything by default,
unless blacklistd support is enabled on the command line.
Document new flag in man page, cleanup patches to be less
intrusive in code.
Reported by: Rick Adams
Reviewed by: cem, emaste
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D8374
alc [Tue, 1 Nov 2016 17:11:10 +0000 (17:11 +0000)]
Move and revise a comment about the relation between the object's paging-
in-progress count and the vnode. Prior to r188331, we always acquired
the vnode lock before incrementing the object's paging-in-progress count.
Now, we increment it before attempting to acquire the vnode lock with
LK_NOWAIT, but we never sleep acquiring the vnode lock while we have the
count incremented.
mav [Tue, 1 Nov 2016 16:03:31 +0000 (16:03 +0000)]
Fix ZIL records ordering when ZVOL opened both with and without FSYNC.
Before this an earlier writes to a ZVOL opened without FSYNC could get to
ZIL after later writes to the same ZVOL opened with FSYNC. Fix this by
replicating functionality of ZPL (zv_sync_cnt equivalent to z_sync_cnt),
marking all log records sync if anybody opened the ZVOL with FSYNC.
emaste [Tue, 1 Nov 2016 15:11:10 +0000 (15:11 +0000)]
libm: add braces around initialization of subobjects
This cleans up a warning when building libm at higher WARNS levels and
makes the intent more clear. By the C standard the values are assigned
to subobject members in order so this change introduces no functional
change. (6.7.9 20)
Reviewed by: kib
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D8333
emaste [Tue, 1 Nov 2016 14:50:32 +0000 (14:50 +0000)]
arm64 make-memstick.sh: use 'set -e' to abort if any step fails
Also remove the now-redundant error handling that was only for makefs.
This script was run on an older FreeBSD host that lacked efi-on-mbr
support in makefs. A warning was emitted on the console (from makefs)
but the script continued running and exited with 0.
Reviewed by: gjb
Sponsored by: The FreeBSD Foundation
We have locale files generated on EL machines (e.g. during cross-build
on amd64 host), but then we are using them on EB machines (e.g. MIPS64EB),
so proceed byte-swap if necessary.
All the libc tests passed successfully, including Russian collation.
cem [Mon, 31 Oct 2016 23:09:52 +0000 (23:09 +0000)]
Add BUF_TRACKING and FULL_BUF_TRACKING buffer debugging
Upstream the BUF_TRACKING and FULL_BUF_TRACKING buffer debugging code.
This can be handy in tracking down what code touched hung bios and bufs
last. The full history is especially useful, but adds enough bloat that
it shouldn't be enabled in release builds.
Function names (or arbitrary string constants) are tracked in a
fixed-size ring in bufs. Bios gain a pointer to the upper buf for
tracking. SCSI CCBs gain a pointer to the upper bio for tracking.
jhb [Mon, 31 Oct 2016 18:37:05 +0000 (18:37 +0000)]
Move declarations of invpcid_works and pmap_pcid_enabled to pmap.h.
Previously these were only declared under #ifdef SMP in <machine/smp.h>.
However, these variables are defind in pmap.c unconditionally, and efirt.c
references them unconditionally. This fixes non-SMP kernel builds.
royger [Mon, 31 Oct 2016 13:12:58 +0000 (13:12 +0000)]
xen: add a grant-table user-space device
A grant-table user-space device will allow user-space applications to map
and share grants (Xen way to share memory) among Xen domains. This grant
table user-space device has been tested with the QEMU Qdisk Xen backed.
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