- Move all VCHI activity to worker thread: channel methods are called with
non-sleepable lock held and VCHI uses sleepable lock.
- In worker thread use sx(9) lock instead of mutex(9) for the same reason.
PR: 213801, 205979
machine/armreg.h requires access to the __ARM_ARCH macro, which is not
always properly defined (especially by gcc 4.2.1). We should include
sys/cdefs.h in order to get the definitions in machine/acle-compat.h,
which would properly define the __ARM_ARCH macro in these cases.
So, in cases where machine/armreg.h is included without _SYS_CDEFS_H_
being defined - generate an #error.
Reviewed by: andrew
Sponsored by: Smartcom - Bulgaria AD
Differential Revision: https://reviews.freebsd.org/D8460
Only include sys/boot.h if LINUX_BOOT_ABI is defined in
sys/arm/arm/machdep.c
Not doing this prevents kernels that do not define LINUX_BOOT_ABI from
being build with gcc (at least 4.2.1).
Reviewed by: mmel
Sponsored by: Smartcom - Bulgaria AD
Differential Revision: https://reviews.freebsd.org/D8459
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.
Reviewed by: andrew, ganbold
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D8425
* 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.
Reviewed by: mmel, imp (earlier version)
Relnotes: yes
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D8335
PLL1 is used by the cpu core, allowing changing freq is needed for cpufreq.
The factors table contains all the frequencies in the operating point table
present in the DTS.
MFC after: 1 week
hardware that supports the mp extensions. If so it should use the broadcast
tlb invalidate instructions as other CPUs or devices may need to know about
the invalidation.
To simplify the code have the compiler optimise out the else case when not
builing for Cortex-A8.
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D8092
Push-Pull Two Wire interface is a almost compatible iic like bus used
in sun6i SoC. It's only use is to communicate with the power management IC.
Reviewed by: jmcneill
MFC after: 1 week
Relnotes: yes
prevent overheating.
When sensor 0's alarm interrupt is fired, set a throttle flag. Further
requests to set CPU frequency will be rejected until sensor 0's temperature
returns to a level below the hot temperature threshold.
Relnotes: yes
The exported functions will be used by
Alpine Ethernet driver.
Obtained from: Semihalf
Submitted by: Michal Stanek <mst@semihalf.com>
Sponsored by: Annapurna Labs
Reviewed by: wma
Differential Revision: https://reviews.freebsd.org/D7763
This patch adds support for MSI-X interrupts
on Annapurna Alpine platform. MSI-X on Alpine
work similarly to GICv2m, i.e. some range of
SPI interrupts is reserved in GIC and individual
SPIs can be triggered by MSI-X messages.
This SPI range is defined in FDT.
Obtained from: Semihalf
Submitted by: Michal Stanek <mst@semihalf.com>
Sponsored by: Annapurna Labs
Reviewed by: nwhitehorn, wma
Differential Revision: https://reviews.freebsd.org/D7579
When detaching device trees parent devices must be detached prior to
detaching its children. This is because parent devices can have
pointers to the child devices in their softcs which are not
invalidated by device_delete_child(). This can cause use after free
issues and panic().
Device drivers implementing trees, must ensure its detach function
detaches or deletes all its children before returning.
While at it remove now redundant device_detach() calls before
device_delete_child() and device_delete_children(), mostly in
the USB controller drivers.
Tested by: Jan Henrik Sylvester <me@janh.de>
Reviewed by: jhb
Differential Revision: https://reviews.freebsd.org/D8070
MFC after: 2 weeks
- Rename SOC_BCM2837 to SOC_BRCM_BCM2837, put it to opt_soc.h
- do not use files.XXX files, just move required sources to
conf/files.arm64 and make them depend on soc_brcm_bcm2837
Suggested by: andrew
Using the device pager with /dev/kmem is not stable since KVA mappings
are transient, but the device pager caches the PA associated with a
given offset forever. Interestingly, mips' implementation of
memmap() already refused requests for /dev/kmem.
Note that kvm_read/kvm_write do not use mmap, but use read and write on
/dev/kmem, so this should not affect libkvm users.
Reviewed by: kib
MFC after: 2 months
RPI3 kernel config builds kernel compatible with latest upstream device
tree and firmware: https://github.com/raspberrypi/firmware/tree/master/boot
As of today it's 597c662a613df1144a6bc43e5f4505d83bd748ca
Default console is PL01x, so pi3-disable-bt dt overlay should be configured
in config.txt and stock U-Boot should be patched to use proper serial port.
Yet unsupported: SMP, VCHIQ, RNG driver. RNG requires some work due to
upstream device tree incompatibility.
Multiple people contributed to this work over time: db@, loos@, manu@
- Revert BUS_SPACE_PHYSADDR back to rman_get_start. BUS_SPACE_PHYSADDR was
introduced in 2013 as temporary wrapper until proper solution appears.
It's ARM only and since we need this file for ARM64 build and no proper
API has been introduced - just revert the change and make sure it's
going to appear when people grep for BUS_SPACE_PHYSADDR in sources.
- Fix printf format for size_t variables
with no creative content. Include "lost" changes from git:
o Use /dev/efi instead of /dev/efidev
o Remove redundant NULL checks.
Submitted by: kib@, dim@, zbb@, emaste@
Keep resource state consistent with INTRNG state - if intr_activate_irq
fails - deactivate resource and propagate error to calling function
Reviewed by: mmel
If pass order is not specified devices are attached in the order they are
defined in dts. Some interrupt consumers may be defined before intc. Also
make sure intc interrupt-parent local_intc is attached before intc itself.
to add actions that run when a TCP frame is sent or received on a TCP
session in the ESTABLISHED state. In the base tree, this functionality is
only used for the h_ertt module, which is used by the cc_cdg, cc_chd, cc_hd,
and cc_vegas congestion control modules.
Presently, we incur overhead to check for hooks each time a TCP frame is
sent or received on an ESTABLISHED TCP session.
This change adds a new compile-time option (TCP_HHOOK) to determine whether
to include the hhook(9) framework for TCP. To retain backwards
compatibility, I added the TCP_HHOOK option to every configuration file that
already defined "options INET". (Therefore, this patch introduces no
functional change. In order to see a functional difference, you need to
compile a custom kernel without the TCP_HHOOK option.) This change will
allow users to easily exclude this functionality from their kernel, should
they wish to do so.
Note that any users who use a custom kernel configuration and use one of the
congestion control modules listed above will need to add the TCP_HHOOK
option to their kernel configuration.
Reviewed by: rrs, lstewart, hiren (previous version), sjg (makefiles only)
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D8185
- Fix compatibility strings
- Properly decode upstream's two-cell interrupt specs. Our home-made dts
does not have two-cell interrupts so no need to preserve backward
compatibility
- Fix range check
- Due to checking found value in for(;;) condition irq after loop was
always + 1 from actually found slot and wrong entry was marked as
used which lead to returning slot 0 for all requests.
- Add multitouch support (protocol B)
- Report physical size of the screen
- Switch from using busy loop to callbacks
- Enable callbacks only when there is active listener on /dev/input/eventX
Submitted by: Vladimir Kondratiev <wulf@cicgroup.ru>
- Fix RX and TX teardown:
. TX teardown would not reclaim the abandoned descriptors;
. Interrupt storms in RX teardown;
. Fixed the acknowledge of the teardown completion interrupt.
- Remove temporary lists for the descriptors;
- Simplified the descriptor handling (less writes and reads from
descriptors where possible);
- Better debug;
- Add support for the RX threshold interrupts:
With interrupt moderation only, an RX overrun is likely to happen. The
RX threshold is set to trigger a non paced interrupt everytime your RX
free buffers are under the minimum threshold, helping to prevent the rx
overrun.
The NIC now survive when pushed over its limits (where previously it would
lock up in a few seconds).
uFW (600MHz SoC) can now forward up to 560Mb/s of UDP traffic (netmap
pkt-gen as source and sink). TCP forwarding rate is over 350Mb/s.
No difference (other than CPU use) was seen on Beaglebone black (1GHz SoC)
for his fast ethernet.
Tested on: uFW, BBB
Sponsored by: Rubicon Communications, LLC (Netgate)
for later Cortex-A CPUs that support the Multiprocessor Extensions. This
will be needed to support both in a single GENERIC kernel while still
being able to only build for a single SoC.
Reviewed by: mmel
Relnotes: yes
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D8138
This list is incomplete, however we don't have the ID values for the
missing Cortex-A32 or A35.
Submitted by: loos (Cortex-A53)
Sponsored by: ABT Systems Ltd
descriptors are reclaimed as soon as possible.
Without this the free buffers are reclaimed only on watchdog runs or after
trying to enqueue more packets.
Sponsored by: Rubicon Communications, LLC (Netgte)
- Initialize lock before starting worker process
- Do not hold lock when destroying evdev. By that time ther should be no
other active code pathes that can access softc
- Convert "options EVDEV" to "device evdev" and "device uinput", add
modules for both new devices. They are isolated subsystems and do not
require any compile-time changes to general kernel subsytems
- For hybrid drivers that have evdev as an optional way to deliver input
events add option EVDEV_SUPPORT. Update all existing hybrid drivers
to use it instead of EVDEV
- Remove no-op DECLARE_MODULE in evdev, it's not required, MODULE_VERSION
is enough
- Add evdev module dependency to uinput
Submitted by: Vladimir Kondratiev <wulf@cicgroup.ru>
VM_MEMATTR_WRITE_COMBINING sets write-through cache flag for framebuffer
memory that prevents pixel data from being stuck in cache until evicition
happens
100 cycles per us seems accurate enough, at least it's better than the 200 value
that was used before.
Reviewed by: andrew, imp
Differential Revision: https://reviews.freebsd.org/D8062
Technically touchscreen chip is FT5406 but all hardware
communication is performed by VideCore and only final results
are presented to ARM part through memory region shared between
VC and ARM.
evdev is used as userland interface. FT5406 supports up to
10 touchpoints, but for now driver emulates single touch device
because I do not have GUI bits to test this functionality.
Driver is not enabled in default config for RPI and RPI2
Tested with: evdev-dump, tslib
The hardware can be set to limit the number of interrupts from 2 to 63
interrupts per ms.
To keep the compatibility with the TI documentation the sysctl take the
interval between the interrupts pulses: 16~500 us.
Sponsored by: Rubicon Communications, LLC (Netgate)
SMP SoCs and qemu virt. Further SoCs can be supported if they support the
PLATFORM, PLATFORM_SMP, and MULTIDELAY options.
Tested by: manu
Sponsored by: ABT Systems Ltd
On amd64, arm64 and i386, we have the possibility to switch between TLS
areas in userspace. The nice thing about this is that it makes it easier
to do light-weight threading, if we ever feel like doing that. On armv6,
let's go into the same direction by making it possible to safely use the
TPIDRURW register, which is intended for this purpose.
Clean up the ARMv6 code to remove md_tp entirely. Simply add a dedicated
field to the PCB to hold the value of TPIDRURW across context switches,
like we do for any other register. As userspace currently uses the
read-only TPIDRURO register, simply ensure that we keep both values in
sync where possible. The system calls for modifying the read-only
register will simply write the intended value into both registers, so
that it lazily ends up in the PCB during the next context switch.
Reviewed by: https://reviews.freebsd.org/D7951
Approved by: andrew
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D7951
SPI-mapped MSI interrupts coming from a controller other
than GICv2m need to have their trigger and polarity
properly configured. This patch fixes MSI/MSI-X
on Annapurna Alpine platform with GICv2.
Obtained from: Semihalf
Submitted by: Michal Stanek <mst@semihalf.com>
Sponsored by: Annapurna Labs
Reviewed by: skra, wma
Differential Revision: https://reviews.freebsd.org/D7698
keep the beaglebone defaults: USB0 -> peripheral/gadget, USB1 -> host.
This is only a workaround as in fact fact this hardware is capable of detect
the USB port mode based on type of cable and act according with the detected
mode. Unfortunately the driver does not handle that at moment.
MFC after: 3 days
Sponsored by: Rubicon Communications, LLC (Netgate)
In order to make CloudABI work on ARMv6, start off by copying over the
sysvec for ARM64 and adjust it to use 32-bit registers. Also add code
for fetching arguments from the stack if needed, as there are fewer
register than on ARM64.
Also import the vDSO that is needed to invoke system calls. This vDSO
uses the intra procedure call register (ip) to store the system call
number. This is a bit simpler than what native FreeBSD does, as FreeBSD
uses r7, while preserving the original r7 into ip.
This sysvec seems to be complete enough to start CloudABI processes.
These processes are capable of linking in the vDSO and are therefore
capable of executing (most?) system calls successfully. Unfortunately,
the biggest show stopper is still that TLS is completely broken:
- The linker used by CloudABI, LLD, still has troubles with some of the
relocations needed for TLS. See LLVM bug 30218 for more details.
- Whereas FreeBSD uses the tpidruro register for TLS, for CloudABI I
want to make use of tpidrurw, so that userspace can modify the base
address directly. This is needed for efficient emulation.
Unfortunately, this register doesn't seem to be preserved across
context switches yet.
Obtained from: https://github.com/NuxiNL/cloudabi (the vDSO)
- 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
Suggested by: Vladimir Kondratiev
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.
Tested on: Beaglebone Black + 4DCAPE-43T + tslib
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.
Tested on A10, A20, H3 and A64.
Reviewed by: jmcneill
Differential Revision: https://reviews.freebsd.org/D6868
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.
Reviewed by: kib, markj
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D7836
The cxgbev/cxlv driver supports Virtual Function devices for Chelsio
T4 and T4 adapters. The VF devices share most of their code with the
existing PF4 driver (cxgbe/cxl) and as such the VF device driver
currently depends on the PF4 driver.
Similar to the cxgbe/cxl drivers, the VF driver includes a t4vf/t5vf
PCI device driver that attaches to the VF device. It then creates
child cxgbev/cxlv devices representing ports assigned to the VF.
By default, the PF driver assigns a single port to each VF.
t4vf_hw.c contains VF-specific routines from the shared code used to
fetch VF-specific parameters from the firmware.
t4_vf.c contains the VF-specific PCI device driver and includes its
own attach routine.
VF devices are required to use a different firmware request when
transmitting packets (which in turn requires a different CPL message
to encapsulate messages). This alternate firmware request does not
permit chaining multiple packets in a single message, so each packet
results in a firmware request. In addition, the different CPL message
requires more detailed information when enabling hardware checksums,
so parse_pkt() on VF devices must examine L2 and L3 headers for all
packets (not just TSO packets) for VF devices. Finally, L2 checksums
on non-UDP/non-TCP packets do not work reliably (the firmware trashes
the IPv4 fragment field), so IPv4 checksums for such packets are
calculated in software.
Most of the other changes in the non-VF-specific code are to expose
various variables and functions private to the PF driver so that they
can be used by the VF driver.
Note that a limited subset of cxgbetool functions are supported on VF
devices including register dumps, scheduler classes, and clearing of
statistics. In addition, TOE is not supported on VF devices, only for
the PF interfaces.
Reviewed by: np
MFC after: 2 months
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D7599
Let drivers for Alpine CCU, NB and Serdes take care of internal SoC configuration.
Obtained from: Semihalf
Submitted by: Michal Stanek <mst@semihalf.com>
Sponsored by: Annapurna Labs
Reviewed by: imp,wma
Differential Revision: https://reviews.freebsd.org/D7566
This commit adds drivers for Alpine Cache Coherency Unit
and North Bridge Service whose task is to configure
the system fabric and enable cache coherency.
Obtained from: Semihalf
Submitted by: Michal Stanek <mst@semihalf.com>
Sponsored by: Annapurna Labs
Reviewed by: wma
Differential Revision: https://reviews.freebsd.org/D7565
Idle page zeroing has been disabled by default on all architectures since
r170816 and has some bugs that make it seemingly unusable. Specifically,
the idle-priority pagezero thread exacerbates contention for the free page
lock, and yields the CPU without releasing it in non-preemptive kernels. The
pagezero thread also does not behave correctly when superpage reservations
are enabled: its target is a function of v_free_count, which includes
reserved-but-free pages, but it is only able to zero pages belonging to the
physical memory allocator.
Reviewed by: alc, imp, kib
Differential Revision: https://reviews.freebsd.org/D7714
dependent pmap_ts_referenced() so that it updates the page's dirty field
if a modified bit is found while counting reference bits. This
opportunistic update can be performed at low cost and can eliminate the
need for some future calls to pmap_is_modified() by the machine-
independent layer.
MFC after: 3 weeks
because the bootloader, ie redboot, won't let them do so, and so used the
memory before the kernel for early memory allocation, such as pagetables,
stacks, etc...
Make a bit of an effort to try to get that memory mapped.
Value passed as islocked argument to knlist_add should
be consistent with actual lock state so add lock/unlock
calls around knlist_add
PR: 212120
Submitted by: Manuel Stuhn
The thermal sensor lives in the touch screen controller. Touch screen part
isn't done for now.
Temperature is read every ~2 seconds and exposed via sysctl.
to generate one. This is was U-Boot does to generate a random MAC so we end
up with the same MAC address as if U-Boot did generate it.
MFC after: 1 week
Currently boot parameters (r0 - r3) are forgotten in ARM trampoline code.
This patch save them at startup and restore them before jumping into kernel
_start() routine.
This is usefull when booting with Linux ABI and/or custom bootloader.
Submitted by: Grégory Soutadé <soutade@gmail.com>
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D7395
- Read interrupt properties at bus enumeration time and store
it into global mapping table.
- At bus_activate_resource() time, given mapping entry is resolved and
connected to real interrupt source. A copy of mapping entry is attached
to given resource.
- At bus_setup_intr() time, mapping entry stored in resource is used
for delivery of requested interrupt configuration.
- For MSI/MSIX interrupts, mapping entry is created within
pci_alloc_msi()/pci_alloc_msix() call.
- For legacy PCI interrupts, mapping entry must be created within
pcib_route_interrupt() by pcib driver itself.
Reviewed by: nwhitehorn, andrew
Differential Revision: https://reviews.freebsd.org/D7493
Allwinner Uniprocessor SoC.
As of now it works with A10 and A13 (and possibly R8 as it is the same as the A13).
Move files.a10 into a1o subdirectory as it should be.
Rename std.a10 into std.allwinner_up
This removes the need to set the MMC pins with pullups in our DTS.
Thanks to jmcneill@ for spotting this.
Tested on Orange Pi One (Allwinner H3).
MFC after: 1 week
GPIO_INPUT/GPIO_OUTPUT.
a10_gpio_get_pud now returns the whole pud not only PULLDOWN/PULLUP.
Add a10_gpio_get_drv to get the current drive strenght.
During fdt pin configure, avoid setting function/drive/pud if it's already in
the correct value.
Tested on Allwinner H3 and A20
MFC after: 1 week
Right now, userspace (fast) gettimeofday(2) on x86 only works for
RDTSC. For older machines, like Core2, where RDTSC is not C2/C3
invariant, and which fall to HPET hardware, this means that the call
has both the penalty of the syscall and of the uncached hw behind the
QPI or PCIe connection to the sought bridge. Nothing can me done
against the access latency, but the syscall overhead can be removed.
System already provides mappable /dev/hpetX devices, which gives
straight access to the HPET registers page.
Add yet another algorithm to the x86 'vdso' timehands. Libc is updated
to handle both RDTSC and HPET. For HPET, the index of the hpet device
to mmap is passed from kernel to userspace, index might be changed and
libc invalidates its mapping as needed.
Remove cpu_fill_vdso_timehands() KPI, instead require that
timecounters which can be used from userspace, to provide
tc_fill_vdso_timehands{,32}() methods. Merge i386 and amd64
libc/<arch>/sys/__vdso_gettc.c into one source file in the new
libc/x86/sys location. __vdso_gettc() internal interface is changed
to move timecounter algorithm detection into the MD code.
Measurements show that RDTSC even with the syscall overhead is faster
than userspace HPET access. But still, userspace HPET is three-four
times faster than syscall HPET on several Core2 and SandyBridge
machines.
Tested by: Howard Su <howard0su@gmail.com>
Sponsored by: The FreeBSD Foundation
MFC after: 1 month
Differential revision: https://reviews.freebsd.org/D7473
Uses of commas instead of a semicolons can easily go undetected. The comma
can serve as a statement separator but this shouldn't be abused when
statements are meant to be standalone.
Detected with devel/coccinelle following a hint from DragonFlyBSD.
MFC after: 1 month
allow us to add an ACPI attachment for arm64.
Obtained from: ABT Systems Ltd
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D7307
The rootkey is burnt at production and can't be changed, thus is can be used
as a device unique ID or to generate a MAC address (This is was u-boot does).
The rootkey is exposed as a sysctl (dev.aw_sid.<unit>.rootkey).
Reviewed by: jmcneill
Differential Revision: https://reviews.freebsd.org/D6383
Summary:
This driver supports the following methods to trigger gathering random bits from the hardware:
1. interrupt when the FIFO is full (default) fed into the harvest queue
2. callout (when BCM2835_RNG_USE_CALLOUT is defined) every second if hz is less than 100, otherwise hz / 100, feeding the random bits into the harvest queue
If the kernel is booted with verbose enabled, the contents of the registers will be dumped after the RBG is started during the attach routine.
Author: hackagadget_gmail.com (Stephen J. Kiernan)
Test Plan: Built RPI2 kernel and booted on board. Tested the different methods to feed the harvest queue (callout, interrupt) and the interrupt driven approach seems best. However, keeping the other method for people to be able to experiment with.
Reviewed By: adrian, delphij, markm
Differential Revision: https://reviews.freebsd.org/D6888
simplebus_add_device() expect a simplebus_softc structure associated with
the device.
Add the simplebus_softc as first member in am335x_pwmss_softc structure.
Sponsored by: Rubicon Communications (Netgate)
H3 EMAC is the same as A83T/A64 except the SoC includes an (optional)
internal 10/100 PHY. Both internal and external PHYs are supported on H3
with this driver.
- Support DEVICE_POLLING
- Increase TX descriptors to 1024
- Add support for passing a chain of mbufs to if_input, reducing the
number of calls to mtx_unlock/mtx_lock under load.
- Remove duplicate byteswap when setting TX_INT_CTL in TX descriptor.
- Set undocumented "TX_NEXT_FRAME" bit in TX control 1 register.
According to the A83T BSP, setting this bit allows the DMA engine to
operate on a packet while receiving another.
Tested on A83T (1000Mbps PHY) and H3 (100Mbps PHY).
Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D7031
on arm64 and all SoCs using the old FIFO register location are 32-bit only,
so unconditionally use the new location for arm64.
Reviewed by: andrew, manu
In some cases, the driver must handle given properties located in
specific OF subnode. Instead of creating duplicate set of function, add
'node' as argument to existing functions, defaulting it to device OF node.
MFC after: 3 weeks
All armv6 processors are plenty fast enough for HZ=1000.
No changes are made for older arm systems, because some chips are a bit
wimpy for 1000 while others do fine, so it has to be set on a per-config
basis.
Sometimes the software loses the race when appending more descriptors to
the tx ring and the tx queue stops.
This commit detects this condition and restart the tx queue whenever it stall.
Tested by: sobomax@, Keith White <kwhite@site.uottawa.ca>,
Paul Mather <paul@gromit.dlib.vt.edu>
Sponsored by: Rubicon Communications (Netgate)
Approved by: re (kib)
