Although usually small, values produced by nitems() are unsigned.
By unsigning the corresponding indexes we avoid signed vs unsigned
comparisons. This may have some effect on performance, although given the
small sizes the effect will not be perceivable and it makes the code
clearer.
Although usually small, values produced by nitems() are unsigned.
By unsigning the corresponding indexes we avoid signed vs unsigned
comparisons. This may have some effect on performance, although given the
small sizes the effect will not be perceivable, and it makes the code
clearer.
Respect the style of the changed files: one uses u_int while the other
uses "unsigned int".
Reviewed by: hselasky
Allow output pins to be read and input pins to be set.
Fix bugs where we were trying to access the gpio softc before doing
device_get_softc.
Approved by: adrian (mentor)
Sponsored by: Smartcom - Bulgaria AD
Differential Revision: https://reviews.freebsd.org/D6222
PCI-express HotPlug support is implemented via bits in the slot
registers of the PCI-express capability of the downstream port along
with an interrupt that triggers when bits in the slot status register
change.
This is implemented for FreeBSD by adding HotPlug support to the
PCI-PCI bridge driver which attaches to the virtual PCI-PCI bridges
representing downstream ports on HotPlug slots. The PCI-PCI bridge
driver registers an interrupt handler to receive HotPlug events. It
also uses the slot registers to determine the current HotPlug state
and drive an internal HotPlug state machine. For simplicty of
implementation, the PCI-PCI bridge device detaches and deletes the
child PCI device when a card is removed from a slot and creates and
attaches a PCI child device when a card is inserted into the slot.
The PCI-PCI bridge driver provides a bus_child_present which claims
that child devices are present on HotPlug-capable slots only when a
card is inserted. Rather than requiring a timeout in the RC for
config accesses to not-present children, the pcib_read/write_config
methods fail all requests when a card is not present (or not yet
ready).
These changes include support for various optional HotPlug
capabilities such as a power controller, mechanical latch,
electro-mechanical interlock, indicators, and an attention button.
It also includes support for devices which require waiting for
command completion events before initiating a subsequent HotPlug
command. However, it has only been tested on ExpressCard systems
which support surprise removal and have none of these optional
capabilities.
PCI-express HotPlug support is conditional on the PCI_HP option
which is enabled by default on arm64, x86, and powerpc.
Reviewed by: adrian, imp, vangyzen (older versions)
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D6136
Further to r299119. GCC architectures failed with
bcma_subr.c:138: warning: control reaches end of non-void function
Sponsored by: The FreeBSD Foundation
- Hardcode '8' instead of NBBY in _BITSET_BITS.
- Define a private version of 'howmany' for use in __bitset_words().
- While here, move a few more things out of _bitset.h and _cpuset.h to
bitset.h and cpuset.h, respectively. The only things left in
_bitset.h and _cpuset.h are the bits needed to define a bitset
structure.
Reviewed by: bde, kib (ish)
"make tinderbox" fails on sparc64 GENERIC-NODEBUG with:
bhnd_subr.c:188: warning: control reaches end of non-void function
Sponsored by: The FreeBSD Foundation
struct associated with some type defined in enum intr_map_data_type
must have struct intr_map_data on the top of its own definition now.
When such structs are used, correct type and size must be filled in.
There are three such structs defined in sys/intr.h now. Their
definitions should be moved to corresponding headers by follow-up
commits.
While this change was propagated to all INTRNG like PICs,
pic_map_intr() method implementations were corrected on some places.
For this specific method, it's ensured by a caller that the 'data'
argument passed to this method is never NULL. Also, the return error
values were standardized there.
Clocks, GPIO, UART, SD card / eMMC, USB, watchdog, and ethernet are
supported. Note that the A83T contains two clusters of four Cortex-A7
CPUs, and only CPUs in first cluster are started for now.
Tested on a Sinovoip Banana Pi BPI-M3.
Different versions of firmware have different requirments for TX/RX
packet layouts (and other things, of course.) Currently the driver
checks between 3xx and 4xx firmware by using the BWN_ISOLDFMT() macro,
which doesn't take into account the 5xx firmware (which I think I need
for the HT and N series PHY chips. I'll know when I do the port.)
BWN_HDRSIZE() also needs to learn about the 5xx series firmware
as well.
So:
* add a firmware version enum
* populate it based on the firmware version we read at load time
* don't finish loading if the firmware is the 5xx firmware; any
code using BWN_ISOLDFMT or BWN_HDRSIZE needs updating (most notably
the TX and RX bits.)
Then, for RX RSSI:
* write down and reimplement the b43 rssi calculation method;
* use it for the correct PHYs (which are all the ones we support);
* do the RSSI calculation before radiotap, not after.
Tested:
* Broadcom BCM4312, STA mode
Obtained from: Linux b43 (careful writing and reimplementing; lots of integer math..)
The change broke buildworld when building lib/libkvm
This change likely needs to be run through a ports -exp run as a sanity
check, as it might break downstream consumers.
Pointyhat to: adrian
Reported by: kargl (confirmed on $work workstation)
Sponsored by: EMC / Isilon Storage Division
Don't crash if the user has more than 31 of them. A follow-up to
r298230.
Reviewed by: allanjude
Relnotes: maybe
Sponsored by: EMC / Isilon Storage Division
Differential Revision: https://reviews.freebsd.org/D6212
This is an initial work in progress to use the replacement bhnd
bus code for devices which support it.
* Add manpage updates for bhnd, bhndb, siba
* Add kernel options for bhnd, bhndbus, etc
* Add initial support in if_bwn_pci / if_bwn_mac for using bhnd
as the bus transport for suppoted NICs
* if_bwn_pci will eventually be the PCI bus glue to interface to bwn,
which will use the right backend bus to attach to, versus direct
nexus/bhnd attachments (as found in embedded broadcom devices.)
The PCI glue defaults to probing at a lower level than the bwn glue,
so bwn should still attach as per normal without a boot time tunable set.
It's also not fully fleshed out - the bwn probe/attach code needs to be
broken out into platform and bus specific things (just like ath, ath_pci,
ath_ahb) before we can shift the driver over to using this.
Tested:
* BCM4311, STA mode
* BCM4312, STA mode
Submitted by: Landon Fuller <landonf@landonf.org>
Differential Revision: https://reviews.freebsd.org/D6191
after r298107
Summary of changes:
- Replace all instances of FILES/TESTS with ${PACKAGE}FILES. This ensures that
namespacing is kept with FILES appropriately, and that this shouldn't need
to be repeated if the namespace changes -- only the definition of PACKAGE
needs to be changed
- Allow PACKAGE to be overridden by callers instead of forcing it to always be
`tests`. In the event we get to the point where things can be split up
enough in the base system, it would make more sense to group the tests
with the blocks they're a part of, e.g. byacc with byacc-tests, etc
- Remove PACKAGE definitions where possible, i.e. where FILES wasn't used
previously.
- Remove unnecessary TESTSPACKAGE definitions; this has been elided into
bsd.tests.mk
- Remove unnecessary BINDIRs used previously with ${PACKAGE}FILES;
${PACKAGE}FILESDIR is now automatically defined in bsd.test.mk.
- Fix installation of files under data/ subdirectories in lib/libc/tests/hash
and lib/libc/tests/net/getaddrinfo
- Remove unnecessary .include <bsd.own.mk>s (some opportunistic cleanup)
Document the proposed changes in share/examples/tests/tests/... via examples
so it's clear that ${PACKAGES}FILES is the suggested way forward in terms of
replacing FILES. share/mk/bsd.README didn't seem like the appropriate method
of communicating that info.
MFC after: never probably
X-MFC with: r298107
PR: 209114
Relnotes: yes
Tested with: buildworld, installworld, checkworld; buildworld, packageworld
Sponsored by: EMC / Isilon Storage Division
The previous change to split the worker thread start out of fdc_attach()
did not start the worker thread if the fdc device in the ACPI namespace
did not have an _FDE method. This fixes hangs when booting with a
floppy controller enabled on certain machines with ACPI.
Tested by: joel
Two new functions are provided, bit_ffs_at() and bit_ffc_at(), which allow
for efficient searching of set or cleared bits starting from any bit offset
within the bit string.
Performance is improved by operating on longs instead of bytes and using
ffsl() for searches within a long. ffsl() is a compiler builtin in both
clang and gcc for most architectures, converting what was a brute force
while loop search into a couple of instructions.
All of the bitstring(3) API continues to be contained in the header file.
Some of the functions are large enough that perhaps they should be uninlined
and moved to a library, but that is beyond the scope of this commit.
sys/sys/bitstring.h:
Convert the majority of the existing bit string implementation from
macros to inline functions.
Properly protect the implementation from inadvertant macro expansion
when included in a user's program by prefixing all private
macros/functions and local variables with '_'.
Add bit_ffs_at() and bit_ffc_at(). Implement bit_ffs() and
bit_ffc() in terms of their "at" counterparts.
Provide a kernel implementation of bit_alloc(), making the full API
usable in the kernel.
Improve code documenation.
share/man/man3/bitstring.3:
Add pre-exisiting API bit_ffc() to the synopsis.
Document new APIs.
Document the initialization state of the bit strings
allocated/declared by bit_alloc() and bit_decl().
Correct documentation for bitstr_size(). The original code comments
indicate the size is in bytes, not "elements of bitstr_t". The new
implementation follows this lead. Only hastd assumed "elements"
rather than bytes and it has been corrected.
etc/mtree/BSD.tests.dist:
tests/sys/Makefile:
tests/sys/sys/Makefile:
tests/sys/sys/bitstring.c:
Add tests for all existing and new functionality.
include/bitstring.h
Include all headers needed by sys/bitstring.h
lib/libbluetooth/bluetooth.h:
usr.sbin/bluetooth/hccontrol/le.c:
Include bitstring.h instead of sys/bitstring.h.
sbin/hastd/activemap.c:
Correct usage of bitstr_size().
sys/dev/xen/blkback/blkback.c
Use new bit_alloc.
sys/kern/subr_unit.c:
Remove hard-coded assumption that sizeof(bitstr_t) is 1. Get rid of
unrb.busy, which caches the number of bits set in unrb.map. When
INVARIANTS are disabled, nothing needs to know that information.
callapse_unr can be adapted to use bit_ffs and bit_ffc instead.
Eliminating unrb.busy saves memory, simplifies the code, and
provides a slight speedup when INVARIANTS are disabled.
sys/net/flowtable.c:
Use the new kernel implementation of bit-alloc, instead of hacking
the old libc-dependent macro.
sys/sys/param.h
Update __FreeBSD_version to indicate availability of new API
Submitted by: gibbs, asomers
Reviewed by: gibbs, ngie
MFC after: 4 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D6004
The datasheets refer to this controller as EMAC, not to be confused with
the fast ethernet controller (also named EMAC) found in A10/A20 SoCs.
Tested on a BananaPi M3 (A83T), which uses an external RGMII PHY (RTL8211E).
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D6169
call pmap_invalidate_page() even though they are not destroying a leaf-
level page table entry.
Eliminate some bogus white-space characters in a comment.
Reviewed by: kib
Add the needed hardcoded gem5 attachments for the UART there, re-using all
the other bits.
In collaboration with: andrew
Sponsored by: DARPA/AFRL
Reviewed by: andrew
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D6204
In case we do not have an interrupt assignment for the virtual timer,
force the physical timer.
Also skip resource allocation for any timer we do not have an interrupt
assignment for.
In collaboration with: andrew
Submitted by: br ([1] from his gem5 arm64 work)
Sponsored by: DARPA/AFRL
Reviewed by: andrew
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D6203
In case of updating it with a very low value it might expire again
after writing the tval but before updating ctrl. In that case we do
lose the status bit saying that the timer expired and we will consequently
not get an interrupt for it, leaving the timer in a "dead" state.
In order to solve this increase the minimum period with what the timer
can be loaded to something higher.
Found & analysed with: gem5
Debugged with: andrew
Sponsored by: DARPA/AFRL
Reviewed by: andrew
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D6202
The Xen PV clock has a resolution of 1ns, so set the resolution to the
highest one that FreeBSD supports, which is 1us.
MFC after: 2 weeks
Sponsored by: Citrix Systems R&D
The current code in clock_register checks if the newly added clock has a
resolution value higher than the current one in order to make it the
default, which is wrong. Clocks with a lower resolution value should be
better than ones with a higher resolution value, in fact with the current
code FreeBSD is always selecting the worse clock.
Reviewed by: kib jhb jkim
Sponsored by: Citrix Systems R&D
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D6185
* Add a debug print for the xmit completion status fields.
Yes, I like staring at a stream of DWORDS.
* Set the retrycnt to the number of full frame retries for now;
I'll figure out how to factor rts/cts failures into it when
I figure out what the difference is.
It's -1 because it's not "retries", it's "tries".
It now passes the youtube test.
Tested:
* BCM4312, STA mode
I noticed that it'd associate fine, but it'd quickly stop exchanging traffic.
Receive was okay, but transmit just failed.
Then I went "wlandebug +rate". I discovered it started at 36M OFDM, and then
quickly rose to 54M, which then showed 0% transmit success.
Then, I dug into how the completion path works. We are reading 'ack=0'
in the TX status side, so .. then I discovered we were only processing the
TX completion status /if/ ack=1. So, we'd only ever count successes;
we'd never count failures, and thus the rate control code thought
everything was a-ok.
We also have to set retrycnt to something non-zero so it indeed does
bring the rate down upon failure.
So:
* Delete the rate control completion code from the tx completion
routine, it's just duplicate and never worked. Putting it behind
'if (status->ack) was pointless.
* Move it to the PIO and DMA completion routines which actually
do free the node reference and mbuf. We know at that point
what the status is, so do it there.
* Fake a retrycnt of 1 for now, so we at least count failures.
Also:
* Start adding comments about weird stuff I find with rate selection.
In this instance, we shouldn't be selecting a fallback rate that
doesn't match the currently configured mode (11a, 11b, 11g, etc.)
This isn't perfect - AMRR does try 54mbit and takes a few packets
before it figures out it's a bad idea - but it's better than nothing.
This makes the bwn(4) driver actually useful for the first time since
I've tried using it - and that dates back to 2011. I've resisted
successfully until now.
Tested:
* Broadcom BCM4312 802.11b/g Wireless, STA mode
WLAN (chipid 0x4312 rev 15) PHY (analog 6 type 5 rev 1) RADIO (manuf 0x17f ver 0x2062 rev 2)
TODO:
* See if the fallback rate actually /is/ working
* Question my own sanity over touching this driver in the first place.
Falling back from 6MB OFDM to 5MB CCK (a) may not work well in the
11bg PHYs, (b) won't work at all if you're 11g only, and (c) plainly
won't work for the 11a PHY.
So, don't do that!
Tested:
* BCM4312 802.11b/g Wireless, STA mode
WLAN (chipid 0x4312 rev 15) PHY (analog 6 type 5 rev 1) RADIO (manuf 0x17f ver 0x2062 rev 2)
Instead of panicking when parsing an invalid ACPI SRAT table,
just ignore it, effectively disabling NUMA.
https://lists.freebsd.org/pipermail/freebsd-current/2016-May/060984.html
Reported and tested by: Bill O'Hanlon (bill.ohanlon at gmail.com)
Reviewed by: jhb
MFC after: 1 week
Relnotes: If dmesg shows "SRAT: Duplicate local APIC ID",
try updating your BIOS to fix NUMA support.
Sponsored by: Dell Inc.
Save the value of the IOV control and page size registers and restore
them (along with the VF count) in pci_cfg_save/pci_cfg_restore. This
ensures ARI remains enabled if a PF driver resets itself during the
PCI_IOV_INIT callback. This might also properly restore SRIOV state
across suspend/resume.
Reviewed by: rstone, vangyzen
Differential Revision: https://reviews.freebsd.org/D6192
While here, check if ARI was enabled by re-reading the config register
after writing it and return an error if the write fails.
Reviewed by: rstone, vangyzen
Add CRC/MOVECRC operations, as well as the TEST and STORE variants.
With these operations, a CRC32C can be computed over one or more
descriptors' source data. When the STORE operation is encountered, the
accumulated CRC32C is emitted to memory. A TEST operations triggers an
IOAT channel error if the accumulated CRC32C does not match one in
memory.
These operations are not exposed through any API yet.
Sponsored by: EMC / Isilon Storage Division
The IOAT engine can only address the low 40 bits (1 TB) of physmem via
the 'next descriptor' pointer. Restrict acceptable range given to
bus_dma_tag_create to match.
Sponsored by: EMC / Isilon Storage Division
While there, order EVFILT_VNODE notes descriptions alphabetically.
Based on submission, and tested by: Vladimir Kondratyev <wulf@cicgroup.ru>
MFC after: 2 weeks
Ease more work concerning active list, e.g. hash table etc.
Reviewed by: gallatin, rrs (earlier version)
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D6137
Not sure why the platform hypercall was disabled on i386, just enable it in
order to fix compilation of the PV timer on i386.
Sponsored by: Citrix Systems R&D
It will be used for the upcoming LRO hash table initialization.
And probably will be useful in other cases, when M_WAITOK can't
be used.
Reviewed by: jhb, kib
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D6138
pci_remap_msix() can be used to alter the mapping of allocated
MSI-X vectors to the MSI-X table. The code had an off by one error
when adding the IRQ resources after performing a remap. This was
fatal for any vectors in the table that used the "last" valid IRQ as
those vectors were assigned a garbage IRQ value.
MFC after: 3 days
macro. Adjust the buffer clipping code to work as expected.
This prevented a number of machines in the FreeBSD.org cluster from
booting due to "ZFS: i/o error - all block copies unavailable"
after an unclean shutdown.
* Break out the 'g' phy code;
* Break out the debugging bits into a separate source file, since
some debugging prints are done in the phy code;
* Make some more chip methods in if_bwn.c public.
This brings the size of if_bwn.c down to 6,805 lines which is now
approaching managable.
This (and eventually migrating the other PHY code out) is in preparation
for adding the 11n PHY. No, the 11ac PHY (for the BCM4260 softmac part) isn't
yet open source, so we can't grow that. Yet.
This trims ~3,700 lines of code from if_bwn.c, bringing it down to a slightly
less crazy sounding 10,446 lines of code.
* Change x/a to work similar to gdb. The content of the memory is
treated as an address, printed symbolically and the address is advanced.
This way you can x/a <stack_address> and then just hit return a bunch
of times to locate useful data on the stack.
* Add x/p. The content of the memory is treated as an address and
printed as hex.
This is based on the similar commit from DragonFlyBSD without the
cosmetic changes.
Relnotes: yes
Obtained from: DragonflyBSD (Matthew Dillon)
Reference: 0624d20e86affcd708609cbf9014207537537a72
This patch adds support for restoring backlight after resume and adds models
Macbook3,1
MacbookAir5,1
MacbookAir5,2
It also incorporates fixes for bug #175260, bug #203610 and bug #203512
so those can be closed if this patch is applied.
PR: kern/209156
PR: kern/175260
PR: kern/203610
PR: kern/203512
Submitted by: Johannes Lundberg <johannes@brilliantservice.co.jp>
Implement several small improvements to the suspend/resume Xen sequence:
- Call the power_suspend_early event before stopping all processes.
- Stop all processes. This was done implicitly previously by putting all
the CPUs in a known IPI handler.
- Warm up the timecounter.
- Re-initialize the time of day register.
Sponsored by: Citrix Systems R&D
bus_get_cpus() returns a specified set of CPUs for a device. It accepts
an enum for the second parameter that indicates the type of cpuset to
request. Currently two valus are supported:
- LOCAL_CPUS (on x86 this returns all the CPUs in the package closest to
the device when DEVICE_NUMA is enabled)
- INTR_CPUS (like LOCAL_CPUS but only returns 1 SMT thread for each core)
For systems that do not support NUMA (or if it is not enabled in the kernel
config), LOCAL_CPUS fails with EINVAL. INTR_CPUS is mapped to 'all_cpus'
by default. The idea is that INTR_CPUS should always return a valid set.
Device drivers which want to use per-CPU interrupts should start using
INTR_CPUS instead of simply assigning interrupts to all available CPUs.
In the future we may wish to add tunables to control the policy of
INTR_CPUS (e.g. should it be local-only or global, should it ignore
SMT threads or not).
The x86 nexus driver exposes the internal set of interrupt CPUs from the
the x86 interrupt code via INTR_CPUS.
The ACPI bus driver and PCI bridge drivers use _PXM to return a suitable
LOCAL_CPUS set when _PXM exists and DEVICE_NUMA is enabled. They also and
the global INTR_CPUS set from the nexus driver with the per-domain set from
_PXM to generate a local INTR_CPUS set for child devices.
Reviewed by: wblock (manpage)
Differential Revision: https://reviews.freebsd.org/D5519
The current resolution of the Xen PV clock is too high, which causes an
adjustment of 5s to be applied to it. Reduce the resolution to be the same
as the RTC plus one, so it's always selected as the best source when
available on x86.
Also don't reset the clock on resume, it's pointless and discards any
previous adjustments.
Sponsoted by: Citrix Systems R&D
Dom0 should be able to set the host time. This is implemented by first
writing to the RTC (as would be done on bare metal), and then using the
XENPF_settime64 hypercall in order to force Xen to update the wallclock
shared page of all domains.
Sponsored by: Citrix Systems R&D
This is going to be used by the Xen clock on Dom0 in order to set the RTC of
the host. The current logic in atrtc_settime is moved to atrtc_set and the
unused device_t parameter is removed from the atrtc_set function call so it
can be safely used by other callers.
Sponsored by: Citrix Systems R&D
Reviewed by: kib, jhb
Differential revision: https://reviews.freebsd.org/D6067
With the removal of the usage of the VCPU_SSHOTTMR_future flag, now
all errors from xentimer_vcpu_start_timer should be considered fatal, and
the loop is no longer needed since in case of setting the timer in the past
we will get an event interrupt right away (instead of returning ETIME).
Sponsored by: Citrix Systems R&D
MFC after : 2 weeks
On slow platforms with unreliable TSC, such as QEMU emulated machines,
it is possible for the FreeBSD kernel to request the next event in the
past. In that case, in the current implementation of
xentimer_vcpu_start_timer, we simply return -ETIME. To be precise Xen
returns -ETIME and we pass it on. As a consequence we need to loop
around to function to make sure that the timer is properly set.
Instead it is better to always ask the hypervisor for a timer event,
even if the timeout is past. To do that, remove the VCPU_SSHOTTMR_future
flag.
Submitted by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed by: royger
MFC after: 2 weeks
the monitored directory as the result of rename(2) operation. The
renames staying in the directory are not reported.
Submitted by: Vladimir Kondratyev <wulf@cicgroup.ru>
MFC after: 2 weeks
rename removing or adding subdirectory entry.
Discussed with and tested by: Vladimir Kondratyev <wulf@cicgroup.ru>
NetBSD PR: 48958 (http://gnats.netbsd.org/48958)
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
* break out the operating mode and rx filter into new functions, rather
than them being hard-coded
* if we're in sniffer mode or not associated, set the BSS MAC to all zero,
rather than relying on a chip reset to do it for us
* add comments about .. how interestingly buggy the chip is.
Tested:
* AR9170 + AR9102, STA+monitor mode
Obtained from: linux carl9170 (general chip workings, constant definitions)
Switch to add_channel / add_channel_ht40 + pass channel's TX power
for the last.
Tested by: dhw
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D6141
chunk, enable UDP encapsulation for all those addresses.
This helps clients using a userland stack to support multihoming if
they are not behind a NAT.
MFC after: 1 week
The new bcache code does not know the size of the disk, and therefore may attempt to read past the end of the disk while trying to fill its read-ahead cache.
This is usually not an issue, it fails gracefully on all of my machines, but some BIOSes seem to retry the reads for up to 30 seconds each, resulting in a long stall during boot
Submitted by: Toomas Soome <tsoome@me.com>
Reviewed by: jhb, np
Differential Revision: https://reviews.freebsd.org/D6109
Avoid logging inconsistency for the /dev/mem device at all. The driver
leaves memattr intact, and the corrective action in the device pager
handles it right.
In the logged warning, name the driver we blame, and show memory
attributes values.
Reported and tested by: pho
Reviewed by: alc
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D6149
driver is (or behaves identically to) /dev/mem. Remove the D_MEM flag
from random drivers.
Note that currently the D_MEM flag does not affect any behaviour, but
this going to change in the next commit.
Noted and reviewed by: alc
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
X-Differential revision: https://reviews.freebsd.org/D6149
The Linux driver sets the rate_n_flags regardless of whether it's being
sent using firmware rate control or local rate control. This includes
the antenna configuration.
Thanks to Kyle Evans <kevans91@ksu.edu> for pointing this out to me
and doing some investigation/testing on his end.
Tested:
* Intel 7260 STA, 2G and 5G networks
64-bit MIPS, use superpage rather than physical-segment constants, or
we may improperly fail to apply suitable alignment -- yet still allow
mmap() to appear to succeed.
Reviewed by: sson
MFC after: 1 week
Sponsored by: DARPA, AFRL
implementations. Early in the boot the kernel will use an approximate,
however after the timer has been probed it will switch to a more accurate
implementation.
Reviewed by: manu
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D5762
This is currently only a code change without any functional
change. But this allows to set the remote encapsulation port
in a more detailed way, which will be provided in a follow-up
commit.
MFC after: 1 week
FDT overlays is de-facto standard for describing expansion boards like
Beaglebone capes or Raspberry Pi shields. The ides is to have basic
DTB for base board and overlays DTB for shields/capes and to construct
final DTB either using human-readable configuration or some
self-discovery mechanism. I believe this approach can also be expanded
to support dynamically loadable FPGA bitstreams on systems like
Zedboard/Zybo.
Overlaying process is simmilar to executable link process for
binaries: each DTB has "exported" symbols and "undefined" symbols, the
latter are resolved using information for the former obtained from
base DTB or one of the overlays applied earlier (more rare case).
This symbols information is not generated by standard dtc that FreeBSD
has in base system, patched[1] version required to produces
overlay-compatible blobs. So although DTB files generated by
buildkernel do not support overlays there are enough
vendor/community-provided DTB blobs ciruclating around to justify
committing this change to ubldr.
This commit introduces handler for "fdt_overlays" variable that can be
defined either as a loader env variable or U-Boot env variable.
fdt_overlays is comma-separated list of .dtbo files located in
/boot/dtb/ directory along with base .dtb. ubldr loads files and
applies them one-by-one to base .dtb and then passes result blob to
the kernel.
[1] dd6a0533e8
Differential Revision: https://reviews.freebsd.org/D3180
clear vd->vdev_tsd in vdev_geom_close_locked instead of vdev_geom_detach.
In the latter function, it would fail to happen in certain circumstances
where cp->private was unset. Ideally, the latter should never happen, but
it can happen when vdev open fails, or where spares are involved.
MFC after: 4 weeks
X-MFC-With: 298786
Sponsored by: Spectra Logic Corp
This change adds few methods for net80211 channel table setup:
- ieee80211_add_channel()
- ieee80211_add_channel_ht40()
(primarily for drivers, that parse EEPROM to get channel list -
they will allow to hide implementation details).
- ieee80211_add_channel_list_2ghz()
- ieee80211_add_channel_list_5ghz()
(mostly as a replacement for ieee80211_init_channels() - they will allow
to specify non-default channel list; may be used in ic_getradiocaps()).
Tested with wpi(4) (add_channel) and rum(4) (add_channel_list_2ghz).
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D6124
Build and install the subr_unit test program originally written by phk, and
run it with the other ATF tests.
tests/sys/kern/Makefile
* Build and install the subr_unit test as a plain test
sys/kern/subr_unit.c
* Reduce the default number of repetitions from 100 to 1, and add a
command-line parser to override it.
* Don't be so noisy by default
* Fix an include problem for the test build
Reviewed by: ngie
MFC after: 4 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D6038
Split ADC driver in two halves: ADC(analog ot digital) and
TSC(touchscreen). Touchscreen driver is fully functional
up to the point of reporting samples. This part will be added
once FreeBSD has API for touchscreen.
Tested on: Beaglebone Black + 4DCAPE-43T
Reviewed by: loos
Differential Revision: https://reviews.freebsd.org/D5847
I .. can't believe I missed this.
This showed up because the AP was TX'ing LDPC to an iwm(4) chipset,
which didn't advertise LDPC and doesn't /accept/ LDPC. Amusingly, all
the two other FreeBSD 11n parts I had tested with (AR9380, Intel 7260)
and I completely forgot to test on ye olde hardware.
That'll teach me.
Tested:
* AR9580 (AP) - Intel 7260 (STA), AR9380 (STA), Intel 6205 (STA)
This is a follow-up to r298789, which removed the B_DIRTY and B_PERSISTENT
flags. This changeset removes them from the associated %b bit description
string as well.
Reviewed by: pfg
Sponsored by: EMC / Isilon Storage Division
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c
Move checks for provider's sectorsize and mediasize into a single
location in vdev_geom_attach. Remove the zfs::vdev::taste class;
it's ok to use the regular vdev class for tasting. Consolidate guid
checks into a single location in vdev_attach_ok. Consolidate some
error handling code from vdev_geom_attach into vdev_geom_detach,
closing a resource leak of geom consumers in the process.
Reviewed by: avg
MFC after: 4 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D5974
function to error out early when no port module is present and doing
eeprom access. This also prevents error codes from filling up in
dmesg.
Sponsored by: Mellanox Technologies
Tested by: Netflix
MFC after: 1 week
So the underlying drivers can use it to select the sending queue
properly for SYN|ACK instead of rolling their own hash.
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D6120
LDPC adds better transmit reliability if both ends support it.
You in theory can do both STBC and LDPC at the same time.
If I see issues I'll disable it.
* Only enable it if both ends of a connection negotiate it.
* Disable it if any rate is non-11n.
* Count both LDPC TX and STBC TX.
Tested:
* AR9380, STA mode
We don't have a separate bss node; instead we dup the first node we saw
and turn that into the BSS node. This means that action frames from
that node would be rejected.
So, check that the node is the bss node /and/ the MAC doesn't match ni_macaddr.
That's the "right" way for now to verify it's an unknown node.
This fixes handling action frames in adhoc mode, which includes negotiating
11n aggregation via ADDBA/DELBA.
This by itself isn't enough to correctly create 11n adhoc networks; but
it is required for aggregation to be negotiated.
Tested:
* AR9380, 11n adhoc mode
* broadcom 11ac adhoc (vendor platform)
Sponsored by: Eva Automation, Inc.
Arguably we should only be doing the probe/attach to children of
these devices as well.
Tested by: Michal Stanek <mst_semihalf.com> (arm64)
Differential Revision: https://reviews.freebsd.org/D6133
interested in having tunneled UDP and finding out about the
ICMP (tested by Michael Tuexen with SCTP.. soon to be using
this feature).
Differential Revision: http://reviews.freebsd.org/D5875
async_drain functionality. This as been tested in NF as well as
by Verisign. Still to do in here is to remove all the old flags. They
are currently left being maintained but probably are no longer needed.
Sponsored by: Netflix Inc.
Differential Revision: http://reviews.freebsd.org/D5924
On ARM, we can directly switch between translation tables only when
the size of the mapping for any given virtual address is the same in
the old and new translation tables. The load of new TTB and subsequent
TLB flush is not atomic operation. So speculative page table walk can
load TLB entry from new mapping while rest of TLB entries are still the
old ones. In worst case, this can lead to situation when TLB cache can
contain multiple matching TLB entries. One (from old mapping) L2 entry
for VA + 4k and one (from new mapping) L1 entry for VA.
Thus, we must switch to kernel pmap translation table as intermediate
mapping because all sizes of these (old pmap and kernel pmap) mappings
are same (or unmapped). The same is true for switch from kernel pmap
translation table to new pmap one.
Add new function gpio_alloc_intr_resource(), which allows an allocation
of interrupt resource associated to given gpio pin. It also allows to
specify interrupt configuration.
Note: This functionality is dependent on INTRNG, and must be
implemented in each GPIO controller.
Summary:
The Initial Local APIC ID is returned by CPUID function 1 (in EBX).
On AMD Family 10h systems the way that ID is built is controlled by
an MSR bit (InitApicIdCpuIdLo). BKDG instructs BIOS to set it in a
certain way, but a BIOS can be buggy. In that case the ID can confuse
tools that use it, e.g. hwloc.
For example, on a system that I own real Local APIC IDs are configured
as 0, 1, 2, 3, but IDs reported via CPUID.1 are 0, 0x40, 0x80, 0xc0.
See: https://github.com/open-mpi/hwloc/issues/183
Reviewed by: kib
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D6060
Labels are limitted by 32 on EF10. It is not sufficient on powerful hosts.
Since only one RxQ is running over each EvQ, zero label may be used.
Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
PR: 208267
Differential Revision: https://reviews.freebsd.org/D6121
In principle n is only used to carry a copy of ipi_count, which is
unsigned, in the non-VIMAGE case, however ipi_count can be used
directly so it is not needed at all. Removing it makes things look
cleaner.
The "len" parameter is uint32_t, indexing it with an int may
end up in a signed integer overflow.
strlen(3) returns an integer of size_t so the corresponding index should
have that size.
MFC after: 1 week
This allows the PCI-PCI bridge driver to save a reference to the child
device in its softc.
Note that this required moving the "pci" device creation out of
acpi_pcib_attach(). Instead, acpi_pcib_attach() is renamed to
acpi_pcib_fetch_prt() as it's sole action now is to fetch the PCI
interrupt routing table.
Differential Revision: https://reviews.freebsd.org/D6021
'devctl delete' can be used to delete a device that is no longer present.
As an anti-foot-shooting measure, 'delete' will not delete a device
unless it's parent bus says it is no longer present. This can be
overridden by passing the force ('-f') flag.
Note that this command should be used with care. If a device is deleted
that is actually present it can't be resurrected unless the parent bus
device's driver supports rescans.
Differential Revision: https://reviews.freebsd.org/D6019
Rescanning a PCI bus uses the following steps:
- Fetch the current set of child devices and save it in the 'devlist'
array.
- Allocate a parallel array 'unchanged' initalized with NULL pointers.
- Scan the bus checking each slot (and each function on slots with a
multifunction device).
- If a valid function is found, look for a matching device in the 'devlist'
array. If a device is found, save the pointer in the 'unchanged' array.
If a device is not found, add a new device.
- After the scan has finished, walk the 'devlist' array deleting any
devices that do not have a matching pointer in the 'unchanged' array.
- Finally, fetch an updated set of child devices and explicitly attach any
devices that are not present in the 'unchanged' array.
This builds on the previous changes to move subclass data management into
pci_alloc_devinfo(), pci_child_added(), and bus_child_deleted().
Subclasses of the PCI bus use custom rescan logic explicitly override the
rescan method to disable rescans.
Differential Revision: https://reviews.freebsd.org/D6018
The BUS_RESCAN() method rescans a single bus device checking for devices
that have been added or removed from the bus. A new 'rescan' command is
added to devctl(8) to trigger a rescan.
Differential Revision: https://reviews.freebsd.org/D6016
In struct:gctl_req, nargs is unsigned.
In mirror:
g_mirror_syncreqs is unsigned.
In raid:
in struct:g_raid_volume, v_disks_count is unsigned.
In virstor:
in struct:g_virstor_softc, n_components is unsigned.
MFC after: 2 weeks
This greatly reduces the oqdrops under heavy workload.
For TCP send/recv test (10K concurrent connections):
oqdrops is reduced by 17% on sending side, and 57% on receiving side.
For nginx-1.8/wrk-4 1KB object test (10K concurrent connections,
4 requests/connection):
oqdrops is reduced by 44% on nginx side, and 10% on wrk side.
MFC after: 1 week
Sponsored by: Microsoft OSTC
put it off into the pr_task. This is similar to prison_free, and in fact
uses the same task even though they do something slightly different.
This resolves a LOR between the process lock and allprison_lock, which
came about in r298565.
PR: 48471
The facility_initialized and facility arrays are the same size and were
intended to be indexed the same. I believe this mismatch was just a
typo/braino in r208731.
Reported by: Coverity
CID: 1017430
Sponsored by: EMC / Isilon Storage Division
An mbpool is allocated with a contiguous array of mbpages. Freeing an
individual mbpage has never been valid. Don't do it.
This bug has been present since this code was introduced in r117624 (2003).
Reported by: Coverity
CID: 1009687
Sponsored by: EMC / Isilon Storage Division
- Factor out common part to zynq-7000.dtsi
- Fix problem with Zynq interrupts by using interrupt "triples"
in .dtsi file to differentiate between edge-triggered and
level-triggered interrupts
- cgem driver now recognizes "status" property
Submitted by: Thomas Skibo <thomasskibo@yahoo.com>
Differential Revision: https://reviews.freebsd.org/D6095
The disgusting macro INP_WLOCK_RECHECK may early-return. In
tcp_default_ctloutput() the TCP_CCALGOOPT case allocates memory before invoking
this macro, which may leak memory.
Add a _CLEANUP variant that takes a code argument to perform variable cleanup
in the early return path. Use it to free the 'pbuf' allocated in
tcp_default_ctloutput().
I am not especially happy with this macro, but I reckon it's not any worse than
INP_WLOCK_RECHECK already was.
Reported by: Coverity
CID: 1350286
Sponsored by: EMC / Isilon Storage Division
This value is u32 on disk, but assigned to an int in memory. After we do the
implicit conversion via assignment, check that the result is at least one[1]
(non-negative[2]).
1. The subsequent for-loop iterates from gpt_entries minus one, down, until
reaching zero. A negative or zero initial index results in undefined signed
integer overflow.
2. It is also used to index into arrays later.
In practice, we expected non-malicious disks to contain small positive values.
Reported by: Coverity
CID: 1223202
Sponsored by: EMC / Isilon Storage Division
The softc member 'ciss_logical' is an array of 'ciss_max_logical_bus' members.
Most of the time it is iterated correctly. This patch fixes the two instances
where the driver iterated off the end of the array.
Reported by: Coverity
CID: 1305492
Sponsored by: EMC / Isilon Storage Division
ism_stop() already destroys and frees 'sp', including a call to ic_destroy().
Don't dereference 'sp' after ism_stop() and don't invoke ic_destroy() on the
freed memory either.
Reported by: Coverity
CIDs: 1006109, 1304861
Sponsored by: EMC / Isilon Storage Division
It seems that the only way to supply dtb to loader on Zynq-based
SoCs is to manually generate dtb and place it to pre-defined location
on SD card or TFTP server where loader can pick it up. More modern
approach is to add modules/dtb/%soc% module and let installworld
target generate dtb and copy them to /boot/dtb/ where they can be
loaded by ubldr
In win2unixfn() we expand Windows 95 style long names. In some cases that
requires moving the data in the nbp->nb_buf buffer backwards to make room. That
code failed to check for overflows, leading to a stack overflow in win2unixfn().
We now check for this event, and mark the entire conversion as failed in that
case. This means we present the 8 character, dos style, name instead.
PR: 204643
Differential Revision: https://reviews.freebsd.org/D6015
It seems rn_dupedkey may be NULL, because of the NULL check inside the loop.
(Also, the rt gets assigned from rn_dupedkey and NULL checked at top of loop.)
However, the for-loop update condition happens before the top-of-loop check and
dereferences 'rt' unconditionally.
Instead, NULL-check before dereferencing.
If rn_dupedkey cannot in fact be NULL, or something else protects this, feel
free to revert this and add an ASSERT of some kind instead.
This was introduced in r191080 (2009) and moved around slightly in r293657.
Reported by: Coverity
CID: 1348482
Sponsored by: EMC / Isilon Storage Division
This is a trivial follow-up to r296308. Annotate the intentional fallthrough
to make it clear for future readers and linters.
Reported by: Coverity
CID: 1352716
Discussed with: jhb
Sponsored by: EMC / Isilon Storage Division
This is a minor follow-up to r297422, prompted by a Coverity warning. (It's
not a real defect, just a code smell.) OSD slot array reservations are an
array of pointers (void **) but were cast to void* and back unnecessarily.
Keep the correct type from reservation to use.
osd.9 is updated to match, along with a few trivial igor fixes.
Reported by: Coverity
CID: 1353811
Sponsored by: EMC / Isilon Storage Division
Introduced in r298594. There is no path before the 'vap == NULL' check where
vap is not already dereferenced.
Reported by: Coverity
CID: 1354979
Sponsored by: EMC / Isilon Storage Division
boot issues when booting with FDT. It is planned to re-enable this at a
later date.
Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation
Set MMC_CAP_4_BIT_DATA and MMC_CAP_8_BIT_DATA based on the "bus-width"
DT property and reduce maximum bus frequency from 52MHz to 50MHz to match
the capabilities of the clock provider.
Tested on a BananaPi BPI-M3 (A83T).
Since the sub-channel offers are synchronized, we can do our own
channel setup without using the sub-channel creation callback.
This paves the way to whack the sub-channel creation callback.
MFC after: 1 week
Sponsored by: Microsoft OSTC
Since the sub-channel offers are synchronized, we can do our own
channel setup without using the sub-channel creation callback.
This paves the way to whack the sub-channel creation callback.
MFC after: 1 week
Sponsored by: Microsoft OSTC
This fixes the sub-channel offer race after Hyper-V device probe/attach
is moved to vmbus SYSINIT/attach.
MFC after: 1 week
Sponsored by: Microsoft OSTC
I'm seeing 5GHz association work but data not work until the rate drops,
so I need way more information about what's being programmed into the
transmit descriptors.
Tested:
* 7260AC, STA mode
This enables LDPC receive support for the AR9300 chips that support it.
It'll announce LDPC support via net80211.
Tested:
* AR9380, STA mode
* AR9331, (to verify the HAL didn't attach it to a chip which
doesn't support LDPC.)
TODO:
* Add in net80211 machinery to make this configurable at runtime.
