This fixes:
1) Crash during USB disconnect
2) Crash in brcmf_txfinalize() on rmmod with packets queued
3) Some errors in exit path
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
1) Crash/Oops fixes
2) One-line patch for BCM43456 support
3) Fix communication with some specific FullMAC firmwares
4) Potential fix for "Invalid packet id" errors
5) Important helper for reporting FullMAC firmware crashes
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
This partitialy reverts commit f506de2cda.
Registering the GPIO chip without a parent device completely breaks the
ath9k GPIOs for device tree targets.
As long as boards using the devicetree don't have the gpio-controller
property set for the ath9k node, the unloading of the driver works as
expected.
Register the GPIO chip with the ath9k device as parent only for OF
targets to find a trade-off between the needs of driver developers and
the broken LEDs and buttons seen by users.
Fixes: FS#2098
Signed-off-by: Mathias Kresin <dev@kresin.me>
(cherry picked from commit d35f2a5565)
This pick most of brcmfmac changes backported into the master in commits
5932eb690f ("mac80211: brcmfmac: backport firmware loading cleanup")
3eab6b8275 ("mac80211: brcmfmac: backport NVRAM loading improvements")
529c95cc15 ("mac80211: brcmfmac: fix use-after-free & possible NULL pointer dereference")
It's more than would be normally backported into a stable branch but it
seems required. Firmware loading cleanups are needed to allow fix memory
bugs in a reliable way. Memory fixes are really important to avoid
corrupting memory and risking a NULL pointer dereference.
Hopefully this stuff has received enough testing in the master.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
First one is a fix for reporting channels to the user space. Important
for users as they could try setting invalid channel and fail to start an
interface.
Later is a support for newer FullMAC chipset firmwares.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Currently it's close to impossible to tell what part of mac80211 setup
went wrong. Errors logged into system log look like this:
radio0 (6155): command failed: No error information (-524)
radio0 (6155): command failed: Not supported (-95)
radio0 (6155): command failed: I/O error (-5)
radio0 (6155): command failed: Too many open files in system (-23)
With this commit change it's getting clear:
command failed: No error information (-524)
Failed command: iw dev wlan0 del
command failed: Not supported (-95)
Failed command: iw phy phy0 set antenna_gain 0
command failed: I/O error (-5)
Failed command: iw phy phy0 set distance 0
command failed: Too many open files in system (-23)
Failed command: iw phy phy0 interface add wlan0 type __ap
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit ffa80bf5a7)
Currently, dynack was only tested upstream using AP/STA mode.
Testing it on IBSS, showed that late-ack detection was broken.
This is caused due to dynack using Association Request/Response
frames for late-ack detection, which IBSS does not use.
Also allowing Authentication frames here solves this.
A second issue also got fixed, which was also seen AP/STA mode:
When a station was added, the estimated value would be exponentially averaged
using 0 as a starting point.
This means that on larger distances, the ack timeout was still not high
enough before synchronizing would run out of late-ack's for estimation.
Fix this by using the initial estimated value as a baseline
and only start averaging in the following estimation rounds.
Test setup:
- 2x identical devices: RB912UAG-5HPnD + 19dB sector
- IBSS
- 2x2 802.11an (ar9340), HT20, long GI
- RSSI's -70 / -71
- Real distance: 23910 meter
Results (60s iperf runs):
Fixed coverage class 54 (up to 24300m):
* 21.5 Mbits/sec
Dynack:
* 28.9 Mbits/sec
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Software crypto wasn't working for management frames because the flag
indicating management frame crypto was missing
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Registering a GPIO chip with the ath9k device as parent prevents unload,
because the gpiochip core increases the module use count.
Unfortunately, the only way to avoid this at the moment seems to be to
register the GPIO chip without a parent device
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This allows driver to support features that can't be dynamically
discovered.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit fecbd91c7c)
Monitor mode isn't supported yet with brcmfmac, it's just an early work.
This also prepares brcmfmac to work stable with new firmwares which use
updated struct for passing STA info.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit c0608c6a27)
The most important is probably regression fix in handling platform
NVRAM. That bug stopped hardware from being properly calibrated breaking
e.g. 5 GHz for Netgear R8000.
Other than that it triggers memory dumps when experiencing firmware
problems which is important for debugging purposes.
Fixes: 2811c97803 ("mac80211: backport brcmfmac firmware & clm_blob loading rework")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit b26214adb5)
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>
(cherry picked from commit 87493dac11)
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>
(cherry picked from commit 66c5696cdf)
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>
(cherry picked from commit 0da9303e5b)
When the 160mhz width is selected the ath10k firmware crash. This fix this problem.
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
(cherry picked from commit 134e832814)
Import a revert-commit from Stanislaw Gruszka which significantly
improves WiFi performance on rt2x00 based hardware.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry-picked from commit f4a639a3d7)
Refactor mesh initialization into a separate function, do some cleaning
on the way to make the code more readable.
Changes:
* Move iw mesh setup to new mac80211_setup_mesh()
* fallback on 'ssid' parameter in case 'mesh_id' isn't set
* move setting of freq variable to shared code as it is needed for
both, the wpa_supplicant and the iw based setup.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
The commit 574e4377fa ("mac80211: properly setup mesh interface") uses
the variable $wpa to decide whether encrypted meshpoint is requested by the
user or not. But the variable $wpa will only be set correctly after the
function wireless_vif_parse_encryption is called.
Fixes: 574e4377fa ("mac80211: properly setup mesh interface")
Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Setup wpa_supplicant for encrypted mesh or when using DFS channels and
adjust interface setup to pass fixed frequency for mesh mode.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
fixed build error when external kernel is selected from menuconfig.
The patches present in target/linux/generic does not gets applied
to external kernel and build fails while compiling mac82011 &
regmap-core kernel modules. as a fix added check in Makefile for
CONFIG_EXTERNAL_KERNEL_TREE present or not.
Signed-off-by: Sandeep Sheriker Mallikarjun <sandeepsheriker.mallikarjun@microchip.com>
This patch was revised upstream before being merged, and OpenWrt's copy
was never updated to reflect the revision.
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
[refreshed patches]
Signed-off-by: Mathias Kresin <dev@kresin.me>
Before this commit, devices supporting both 2.4GHz and 5GHz would be
configured for 2.4GHz by default - unless they have VHT capabilities.
With this commit, channel 36 is only set when the frequency is supported.
VHT isn't checked unless that is the case.
Signed-off-by: Leon M. George <leon@georgemail.eu>
