Enables support for Dynack feature.
When a remote station is far away, we need to compensate for the distance
by allowing more time for an ACK to arrive back before issueing a retransmission.
Currently, it needs to be set fixed to indicate the maximum distance the remote
station will ever be.
While this mostly works for static antennae, it introduces 2 issues:
- If the actual distance is less, speed is reduced due to a lot of wates wait-time
- If the distance becomes greater, retries start to occur and comms can get lost.
Allowing to set it dynamically using dynack ensures the best possible tradeoff
between speed vs distance.
This feature is currently only supported in ath9k.
it is also disabled by default.
Enabling it can be done in 2 ways:
- issue cmd: iw phy0 set distance auto
- sending the NL80211_ATTR_WIPHY_DYN_ACK flag to mac80211 driver using netlink
Disabling it can be done by providing a valid fixed value.
To give an idea of a practical example:
In my usecase, we have mesh wifi device installed on ships/platforms.
Currently, the coverage class is set at 12000m fixed.
When a vessel moved closer (ex. 1500m), the measured link capacity was a lot
lower compared to setting the coverage class fixed to 1500m
Dynack completely solved this, nearly providing double the bandwidth at closer range
compared to the fixed setting of 12000m being used.
Also when a vessel sailed to a distance greater than the fixed setting,
communication was lost as the ACK's never arrived within the max allowed timeframe.
Actual distance: 6010m
iperf 60s run avg
Fixed 12150m: 31 Mbit/s
Dynack: 58 Mbit/s
Fixed 6300m: 51 Mbit/s
Dynack: 59 Mbit/s
Fixed 3000m: 13 Mbit/s (lots of retries)
Dynack: 58 Mbit/s
Actual distance: 1504m
iperf 60s run avg
Fixed 12150m: 31 Mbit/s
Dynack: 86 Mbit/s
Fixed 6300m: 55 Mbit/s
Dynack: 87 Mbit/s
Fixed 3000m: 67 Mbit/s
Dynack: 87 Mbit/s
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Most of the implementations behind cfg80211_get_station will not initialize
sinfo to zero before manipulating it. For example, the member "filled",
which indicates the filled in parts of this struct, is often only modified
by enabling certain bits in the bitfield while keeping the remaining bits
in their original state. A caller without a preinitialized sinfo.filled can
then no longer decide which parts of sinfo were filled in by
cfg80211_get_station (or actually the underlying implementations).
cfg80211_get_station must therefore take care that sinfo is initialized to
zero. Otherwise, the caller may tries to read information which was not
filled in and which must therefore also be considered uninitialized. In
batadv_v_elp_get_throughput's case, an invalid "random" expected throughput
may be stored for this neighbor and thus the B.A.T.M.A.N V algorithm may
switch to non-optimal neighbors for certain destinations.
Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Board Data File (BDF) is loaded upon driver boot-up procedure. The right
board data file is identified on QCA4019 using bus, bmi-chip-id and
bmi-board-id.
The problem, however, can occur when the (default) board data file cannot
fulfill the vendor requirements and it is necessary to use a different
board data file.
This problem was solved for SMBIOS by adding a special SMBIOS type 0xF8.
Something similar has to be provided for systems without SMBIOS but with
device trees. No solution was specified by QCA and therefore a new one has
to be found for ath10k.
The device tree requires addition strings to define the variant name
wifi@a000000 {
status = "okay";
qcom,ath10k-calibration-variant = "RT-AC58U";
};
wifi@a800000 {
status = "okay";
qcom,ath10k-calibration-variant = "RT-AC58U";
};
This would create the boarddata identifiers for the board-2.bin search
* bus=ahb,bmi-chip-id=0,bmi-board-id=16,variant=RT-AC58U
* bus=ahb,bmi-chip-id=0,bmi-board-id=17,variant=RT-AC58U
Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com>
Fixes a potential infinite loop bug when in unlimited (ie not using
built in shaper) mode.
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
This bumps to the latest & possibly greatest cake, sadly it's still
inedible but from an SQM point of view quite tasty :-)
Main tweaks since previous bump, improved ack_filter, some extra stats,
support for 64bit netlink parameters (higher rates/byte counters)
0520a6c Fix NAT option handling
8da93e1 Make sure we always call qdisc_watchdog_init() in cake_init()
f65daf6 Fix mismatched parenthesis
51d4ab3 Change flag handling to be safe even when mixing with non-eligible ACKs
f2ea091 ack_filter: protect DCTCP with stricter filtering of ECE marks
28b4560 ACK filter: Handle wrapping sequence numbers and DSACKs
73f62d9 Use the right PAD attribute for options
5969c14 Use 32 for tin backlog
e289f31 Move all the u64 netlink attributes together
36180a0 Check ACK seqno before parsing SACKs
91bbc01 Merge branch 'mine' into cobalt
58c55ec Rework SACK check to compare the ranges of two SACKs
9a5d593 ack_filter: Add proper handling of SACKs
eca95d4 ack_filter: short-circuit TCP flag check
d50a246 compat: backport some ktime functions
7b7ad11 compat: define tcpopt_fastopen for pre-4.1 kernels
ca54cdb Fix ktime compare
9d7dcc0 ack filter: Parse TCP options and only drop safe ones
b119882 Return EOPNOTSUPP on NAT option if conntrack is not available
842d7f0 Don't try to pad stats with tin_stats padding
bd46dc2 Use 64-bit divide helper
8e41bf0 Make sure we never drop SACKs when filtering ACKs
66e5d60 Avoid comparing ktime_t to scalar values
7fab017 Actually commit the ktime_t changes
fca6d13 Switch to ktime_t and get rid of cobalt.h
6f7e5af Can't use do_div with 64-bit divisors
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
After a very enlightening but unfortunately far too short exchange with Jes
we mutually agreed to drop the patches. They are unfortunately not ready
yet.
Acked-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: John Crispin <john@phrozen.org>
Add xt_bpf modules to {kmod-ipt,iptables-mod}-filter.
Match using Linux Socket Filter. Expects a BPF program in decimal
format. This is the format generated by the nfbpf_compile utility.
Signed-off-by: Alin Nastac <alin.nastac@gmail.com>
Commit 61d57a2f88 adds ath10k LED
support, but doesn't add an option to actually enable it.
After enabling this option, a LED named ath10k-phy0 appears in sysfs,
and a trigger can be assigned to it. Since 60deb3cdef the default set
trigger is the tpt one.
Enable it by default, as most devices using ath10k chips shouldn't be
severely space-constrained. There are likely many devices that can
benefit from having it enabled, like my testing device.
Before:
text data bss dec hex filename
245311 8899 16 254226 3e112 ath10k_core.ko
After:
text data bss dec hex filename
245979 8899 16 254894 3e3ae ath10k_core.ko
Tested on a D-Link DAP-2695-A1 (ar71xx).
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Use the tpt LED trigger for each created phy led. Ths way LEDs attached
to the ath10k GPIO pins are indicating the phy status and blink on
traffic.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Enabling CONFIG_ATH10K_THERMAL on targets that don't have CONFIG_THERMAL
enabled in their kernel config causes build to fail due to missing
symbol THERMAL_EMERGENCY_POWEROFF_DELAY_MS. Add it to kmod-thermal.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
The package is not being generated otherwise, which is fatal because
it is part of the subtargets default package set...
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This new package was missing the dependency to kmod-random-core which
caused some build errors.
Fixes: 163ab9135a ("kernel/modules: add chaoskey module, hardware TRNG")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Package the driver for Chaoskey, a USB dongle that provides a
True Random Number Generator (TRNG) and feeds entropy to kernel.
Chaoskey driver is included the upstream Linux sources, so
only packaging it is needed.
Run-tested with ipq806x/R7800 and mvebu/WRT3200ACM.
(Requires CONFIG_HW_RANDOM kernel option.)
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
It was described by Arend as:
> This series is intended for 4.17 and includes following:
>
> * rework bus layer attach code.
> * remove duplicate variable declaration.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
9090f9c mt76x2: fix threshold for gain adjustment
2cbaa57 mt76x2: fix swapped values for RXO-18 in gain control
a39ab70 mt76x2: adjust AGC control register 26 based on gain for VHT80
4936c0c mt76x2: clear false CCA counters after changing gain settings
1528fe7 mt76x2: fix variable gain adjustment range
f3522e1 mt76x2: add a debugfs file to dump agc calibration information
65e161b mt76x2: fix tracking rssi for dynamic gain adjustment
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Recent Speedport firmware downloads only work over HTTPS, so the user
either needs to provide the already downloaded file or install
ustream-ssl-* as well as ca-certificates or ca-bundle.
So to get VDSL2 with vectoring on xRX200, simply run
vdsl_fw_install.sh
on the target and either provide the downloaded file as instructed or
make sure the device is connected to the Internet and can download that
HTTPS url itself.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
On some targets this module depends on kmod-of-mdio.
This is similar to the fixes done in:
dc629d9cf5 ("kernel: fix kmod-switch-rtl8366-smi dependency")
56bd23cf52 ("kernel: let kmod-rtl8366-smi conditionally depend on kmod-of-mdio")
Fixes: 32f32398af ("kernel/modules: add kmod-mdio-gpio module")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Some ath10k firmware versions allow to access the chip internal a
temperature sensor and allow to reduce the amount of the time when the card
is allowed to send. The latter is required on devices which tend to
overheat.
An userspace service has to read
/sys/class/ieee80211/phy*/device/hwmon/hwmon*/temp1_input regularly and
then decide how much the device has to be throttled. This can be done by
writing to /sys/class/ieee80211/phy*/device/cooling_device/cur_state. By
default it is not throttled (0) but it can be throttled up to 100(%).
Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Without this change, ifx_mei_atm_showtime_check() will always return
"showtime" after one call of MEI_InternalXtmSwhowtimeEntrySignal()
was done, even if MEI_InternalXtmSwhowtimeExitSignal() was called
in the meantime.
The ifx_mei_atm_showtime_check() function is used by the ltq-atm and
ltq-ptm driver.
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
Problem - rapsberry pi 3 b/b+ does not boot with bcm2710 images!
How Raspberry Pi boots Actualy?
When Raspberry is switched on GPU is activated.
1. GPU execute First stage bootloader from ROM.
First stage bootloader mount the FAT boot partition on the SD card
and execute second stage bootloader (bootcode.bin).
2. Second stage bootloader (bootcode.bin) activate SDRAM.
Load the GPU firmware (start.elf).
3. GPU firmware (start.elf)
a) display Rainbow splash.
b) read firmware configuration file config.txt and
split the RAM using fixup.dat.
c) loads a cmdline.txt
d) enables the CPU.
e) loads the kernel image configurable via config.txt
In your target/linux/brcm2708/image/config.txt
493 ## kernel (string)
494 ## Alternative name to use when loading kernel.
495 ##
496 #kernel=""
it is not configured!
But in your target/linux/brcm2708/image/Makefile
75 KERNEL_IMG := kernel8.img
76 DEVICE_TITLE := Raspberry Pi 3B/3B+
you have kernel8.img
GPU Firmware search order by default for a PI 3 is:
kernel8.img if found boot in 64 bit mode
kernel8-32.img if found boot in 32 bit mode
kernel7.img if found boot in 32 bit mode
kernel.img if found boot in 32 bit mode
But a PI 2 will start the search from kernel7.img and
a PI 1 only looks for kernel.img.
Оbviously the kernel has been found.
But something goes wrong and the device is restarted.
In your package/kernel/brcm2708-gpu-fw/Makefile
11 PKG_NAME:=brcm2708-gpu-fw
12 PKG_VERSION:=2017-08-08
13 PKG_RELEASE:=e7ba7ab135f5a68b2c00a919ea9ac8d5528a5d5b
boot loader is 10 monts old.
In conclusion, the best way to solve the problem is
to update the boot loader!
Fixup_cd.dat and start_cd.elf files are not necessary.
These are used when GPU memory is set to 16 MB, which disables
some GPU features.
I did not remove them just in case!
cheers
Signed-off-by: Christo Nedev <christo.nedev@gmail.com>
20c0766 mt7603: adjust rx hang watchdog for MT7628
664e321 mt7603: add extra PSE hang check signature for MT7628
f24b56f update MT7628 firmware to the latest version
d87e4b0 mt7603: clear PSE reset bit if PSE reset fails
0ef26ef mt76: only stop tx queues on offchannel, not during the entire scan
f399da3 mt76: prevent tx scheduling during channel change
21c1e1e mt76: move ieee80211_hw allocation to common core
730c292 mt76: wait for pending tx to complete before switching channel
fcbb49e mt76x2: use udelay instead of usleep_range in mt76x2_mac_stop
792dbe0 mt7603: do not hold dev->mutex while flushing dev->mac_work
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Import a revert-commit from Stanislaw Gruszka which significantly
improves WiFi performance on rt2x00 based hardware.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
As of commit in kernel:
6104c37094 fbcon: Make fbcon a built-time depency for fbdev
framebuffer console is build in into framebuffer module and there's no
standalone fbcon module. Therefore drop the kmod-fbcon and enable
console in kmod-fb. The only targets which use these modules are imx6
and geode, both are on kernel 4.14 so no fallback for other kernels is
introduced.
Being at that this commit also fixes autoload of fbdev for x86.
Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
