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9 years agoath10k: fix build error when hwmon is off
Kalle Valo [Wed, 7 Jan 2015 15:04:10 +0000 (17:04 +0200)]
ath10k: fix build error when hwmon is off

kbuild reported a linking error:

ERROR: "devm_hwmon_device_register_with_groups"
[drivers/net/wireless/ath/ath10k/ath10k_core.ko] undefined!

Fix it by returning early and letting the compiler to optimise out the function
call.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: set phymode to 11b when NO_OFDM flag set
Peter Oh [Thu, 18 Dec 2014 18:13:00 +0000 (10:13 -0800)]
ath10k: set phymode to 11b when NO_OFDM flag set

phymode should use 11b only if NO_OFDM flags is set.
Hence check up channel flag for NO_OFDM and set to
11b.

Signed-off-by: Peter Oh <poh@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: send (re)assoc peer command when NSS changed
Janusz Dziedzic [Wed, 17 Dec 2014 10:30:02 +0000 (12:30 +0200)]
ath10k: send (re)assoc peer command when NSS changed

Assoc peer command contain information about NSS.
When we will get IEEE80211_RC_NSS_CHANGED we should
also send (re) assoc peer command to be sure firmware
will know about it and RC will work correctly.

This was found during code review.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: fix low TX rates when IBSS and HT
Janusz Dziedzic [Wed, 17 Dec 2014 10:29:54 +0000 (12:29 +0200)]
ath10k: fix low TX rates when IBSS and HT

This fix TX problem when IBSS used in HT mode.
Before we used 6Mbps all the time for TX direction.

Reported-by: Yeoh Chun-Yeow <yeohchunyeow@gmail.com>
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: add thermal sensor device support
Rajkumar Manoharan [Wed, 17 Dec 2014 10:22:26 +0000 (12:22 +0200)]
ath10k: add thermal sensor device support

Temperature sensor generates electrical analog voltage from temperature
of each chain. The analog voltage is converted to digital value through
ADC. For reading temperature values fom user space, hw monitoring device
is used.

Whenever the user requests for current temperature, the driver sends WMI
command and wait for response. For reading temperature,

cat /sys/class/ieee80211/phy*/device/hwmon/hwmon2/temp1_input

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: add wmi interface for pdev_get_temperature
Rajkumar Manoharan [Wed, 17 Dec 2014 10:22:17 +0000 (12:22 +0200)]
ath10k: add wmi interface for pdev_get_temperature

Add WMI command support for reading temperature from the target and
corresponding WMI temperature event handler. The pdev_get_temperature
command is currently supported in 10.2 firmware alone.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: add thermal cooling device support
Rajkumar Manoharan [Wed, 17 Dec 2014 10:22:07 +0000 (12:22 +0200)]
ath10k: add thermal cooling device support

Thermal cooling device support is added to control the temperature
by throttling the data transmission for the given duration. Throttling
is done using hw MAC quiet time setting. Period, duration and offset
from TBTT can be set up to quiet the MAC transmits for the required duty
cycle (% of quiet duration). The thermal device allows user to configure
duty cycle.

The quiet params are derived as follows.
period = max(25TU, beacon interval / number of bss)
duration = period * duty cycle / 100

Quiet mode can be disabled by setting the duty cycle to 0. The cooling
device can be found under /sys/class/thermal/cooling_deviceX/.
Corresponding soft link to this device can be found under phy folder.

/sys/class/ieee80211/phy*/device/cooling_device.

To set duty cycle as 40%,

echo 40 >/sys/class/ieee80211/phy*/device/cooling_device/cur_state

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: add wmi support for pdev_set_quiet_mode
Rajkumar Manoharan [Wed, 17 Dec 2014 10:21:40 +0000 (12:21 +0200)]
ath10k: add wmi support for pdev_set_quiet_mode

Add WMI support to send pdev_set_quiet_mode command to target.
This will be used for thermal mitigation purpose.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: add 10.2.4 firmware support
Rajkumar Manoharan [Wed, 17 Dec 2014 10:21:12 +0000 (12:21 +0200)]
ath10k: add 10.2.4 firmware support

10.2.4 firmware uses bitmask in wmi_resource_config to configure
10.2 firmware features like airtime fairness and rx batch mode instead
of maintaining separete bool entry. This allows new features that can be
configure during init time without breaking backward compatibility.

kvalo: use WMI op version, bump up FW API to 4 to not break older versions of
ath10k

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: print ath10k wmi op version
Kalle Valo [Wed, 17 Dec 2014 10:21:03 +0000 (12:21 +0200)]
ath10k: print ath10k wmi op version

The internal firmware version doesn't tell much to the user, it's more
informative to use that field to print the wmi op version.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: use wmi op version to check which iface combination to use
Kalle Valo [Wed, 17 Dec 2014 10:20:54 +0000 (12:20 +0200)]
ath10k: use wmi op version to check which iface combination to use

ATH10K_FW_FEATURE_WMI_10X should not be used for anymore as that's
now deprecated, instead use wmi op version.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: set max_num_vdevs based on wmi op version
Kalle Valo [Wed, 17 Dec 2014 10:20:45 +0000 (12:20 +0200)]
ath10k: set max_num_vdevs based on wmi op version

To make it easier to manage firmware differences, we should not use
ATH10K_FW_FEATURE_WMI_10X outside ath10k_core_init_firmware_features(). To
achieve that create new field ar->max_num_vdevs and set it based on wmi op
version.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: advertise p2p dev support
Michal Kazior [Fri, 12 Dec 2014 11:41:39 +0000 (12:41 +0100)]
ath10k: advertise p2p dev support

Firmware doesn't allow precise tx rate control so
P2P wasn't entirely spec compliant (it was using
CCK rates in some cases).

The only way to make sure firmware doesn't use CCK
rates is to have a vdev with P2P subtype used for
scanning and tx. This can be done via a special
dedicated P2P device interface support.

This also removes the ancient hack from ath10k in
favor of p2pdev.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: enable per-vif sta powersave
Michal Kazior [Fri, 12 Dec 2014 11:41:38 +0000 (12:41 +0100)]
ath10k: enable per-vif sta powersave

Per-vif bss_conf.ps should be used to configure
powersave.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: prevent invalid ps timeout config
Michal Kazior [Fri, 12 Dec 2014 11:41:37 +0000 (12:41 +0100)]
ath10k: prevent invalid ps timeout config

Setting 0 ps timeout to firmware yields very poor
latency and traffic issues. This is the case when
multi-vif is active.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: fix STA u-APSD
Michal Kazior [Fri, 12 Dec 2014 11:41:36 +0000 (12:41 +0100)]
ath10k: fix STA u-APSD

To comply with WMM-PS the device shouldn't wake up
with a NullFunc frame pair when tx-ing. Instead PM
bit on each tx frame should be used.

To make this work correctly firmware needs to be
told to use a different STA PS wake threshold when
u-APSD is enabled.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: improve 11b coex
Michal Kazior [Fri, 12 Dec 2014 11:41:35 +0000 (12:41 +0100)]
ath10k: improve 11b coex

Some firmware revisions need peer phymode to be
specified as MODE_11B when associating as station
to a 11b AP. Otherwise they can starve other
stations.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: unregister and remove frag_threshold callback
Peter Oh [Fri, 5 Dec 2014 17:16:26 +0000 (09:16 -0800)]
ath10k: unregister and remove frag_threshold callback

Setting fragmentation threshold has not been supported by
any of firmware versions, hence unregister the callback and
remove the function.

Signed-off-by: Peter Oh <poh@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: add new wmi interface of NF cal period
Peter Oh [Tue, 2 Dec 2014 11:07:14 +0000 (13:07 +0200)]
ath10k: add new wmi interface of NF cal period

Introduce a new wmi interface controls noise floor (NF) calibration
period via debugfs as firmware has introduced it on v10.2.

It allows users to modify frequency of NF calibration in millisecond
and changes RSSI reporting frequency consequently.
Short calibration period will trigger more frequent NF calibration,
so that RSSI reported in receive frames is more realistic.

Till now calibration was done at 30 seconds.

Signed-off-by: Peter Oh <poh@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: add new pdev parameters for fw 10.2
Peter Oh [Tue, 2 Dec 2014 11:06:53 +0000 (13:06 +0200)]
ath10k: add new pdev parameters for fw 10.2

New pdev paramters have been added to firmware 10.2,
hence update wmi interfaces to sync with.

Signed-off-by: Peter Oh <poh@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: implement wmi-tlv backend
Michal Kazior [Wed, 3 Dec 2014 08:11:32 +0000 (10:11 +0200)]
ath10k: implement wmi-tlv backend

Latest main firmware branch introduced a new WMI
ABI called wmi-tlv. It is not a tlv strictly
speaking but something that resembles it because
it is ordered and may have duplicate id entries.

This prepares ath10k to support new hw.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: make some wmi functions public
Michal Kazior [Wed, 3 Dec 2014 08:11:22 +0000 (10:11 +0200)]
ath10k: make some wmi functions public

Some functions can be shared across different WMI
ABIs. Make them public so different WMI backends
can use them from different source files in the
future.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: introduce wmi ops
Michal Kazior [Wed, 3 Dec 2014 08:10:54 +0000 (10:10 +0200)]
ath10k: introduce wmi ops

Since the 10.x fw branch support was introduced it
became apparent ath10k will need to be able to
deal with different fw ABIs eventually.

The patch creates an abstraction for dealing with
command and event structures across different ABIs
and mostly gets rid of the
ATH10K_FW_FEATURE_WMI_10X flag usage.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: implement intermediate event args
Michal Kazior [Wed, 3 Dec 2014 08:10:26 +0000 (10:10 +0200)]
ath10k: implement intermediate event args

This splits the actual event parsing into
intermediary structures to facilitate future
support of vastly different ABI WMI backends.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: set max_num_pending_tx in ath10k_core_init_firmware_features()
Kalle Valo [Wed, 3 Dec 2014 08:10:17 +0000 (10:10 +0200)]
ath10k: set max_num_pending_tx in ath10k_core_init_firmware_features()

Better to have this in same place as other firmware interface handling.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: add ATH10K_FW_IE_WMI_OP_VERSION
Kalle Valo [Wed, 3 Dec 2014 08:10:08 +0000 (10:10 +0200)]
ath10k: add ATH10K_FW_IE_WMI_OP_VERSION

Instead of using feature flags, add new 32 bit variable for managing different
WMI versions. This makes it firmware interface tests a bit less convoluted,
especially when we add one more interface.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: create ath10k_core_init_features()
Kalle Valo [Wed, 3 Dec 2014 08:09:59 +0000 (10:09 +0200)]
ath10k: create ath10k_core_init_features()

It's easier to manage firmware version differences when we configure them in
one place. Rename ath10k_core_init_max_sta_count() to
ath10k_core_init_firmware_features() and start moving most of the firmware
version ("features") handling to that function.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: clean up error handling in ath10k_core_probe_fw()
Kalle Valo [Wed, 3 Dec 2014 08:09:31 +0000 (10:09 +0200)]
ath10k: clean up error handling in ath10k_core_probe_fw()

Use the error handling style preferred in ath10k. Makes it easier to add
ath10k_init_firmware_features() function in the next patch.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: move uart pin config into hw_params
Michal Kazior [Tue, 2 Dec 2014 08:55:55 +0000 (10:55 +0200)]
ath10k: move uart pin config into hw_params

This will make it possible to easily support
different hardware with different uart pin
configuration.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: put board size into hw_params
Michal Kazior [Tue, 2 Dec 2014 08:55:54 +0000 (10:55 +0200)]
ath10k: put board size into hw_params

This makes it easier to extend the list of
supported hardware.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: create a chip revision whitelist
Michal Kazior [Tue, 2 Dec 2014 08:55:54 +0000 (10:55 +0200)]
ath10k: create a chip revision whitelist

This will make it easier to extend and maintain
list of supported hardware.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: read calibration data from Device Tree
Toshi Kikuchi [Tue, 2 Dec 2014 08:55:54 +0000 (10:55 +0200)]
ath10k: read calibration data from Device Tree

This patch adds support for reading calibration data from Device Tree.
It looks for the calibration data in Device Tree if it can't find it
in a file. If there's no node in Device Tree, ath10k will try to find the
calibration data from OTP.

The node for the calibration data should be defined like this:

pci {
        pcie@0 {
                reg = <0 0 0 0 0>;
                #interrupt-cells = <1>;
                #size-cells = <2>;
                #address-cells = <3>;
                device_type = "pci";

                ath10k@0,0 {
                        reg = <0 0 0 0 0>;
                        device_type = "pci";
                        qcom,ath10k-calibration-data = [ 01 02 03 ... ];
                };
        };
};

Signed-off-by: Toshi Kikuchi <toshik@chromium.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agodt: bindings: add ath10k wireless device
Kalle Valo [Tue, 2 Dec 2014 08:55:53 +0000 (10:55 +0200)]
dt: bindings: add ath10k wireless device

Document how calibration data can be provided to ath10k via Device Tree.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agowil6210: remove TODO wrt buffer alignment
Vladimir Kondratiev [Mon, 1 Dec 2014 13:36:53 +0000 (15:36 +0200)]
wil6210: remove TODO wrt buffer alignment

Hardware doesn't place any restrictions on the buffer alignment,
consider this TODO resolved.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agowil6210: reset flow update
Vladimir Kondratiev [Mon, 1 Dec 2014 13:36:31 +0000 (15:36 +0200)]
wil6210: reset flow update

If card reset with firmware download executed, followed by reset
with use of firmware from build in flash, firmware download indication
remains in the hardware register.
When running firmware download flow,
the SW download indication is written by the driver to bit 0 in usage_6:
wil_fw_load(), "S(RGF_USER_USAGE_6, 1);"
This register, like all USER RGF, wasn't reset in SW reset flow.
Therefore the driver must clear it on SW reset flow.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agowil6210: Rate limit "ring full" error message
Vladimir Kondratiev [Mon, 1 Dec 2014 13:36:03 +0000 (15:36 +0200)]
wil6210: Rate limit "ring full" error message

In the wil_tx_ring, error message printed when tx attempted
while vring has no space to accommodate all fragments of frame.
Normally, such situation handled by stopping tx queue.
But, if tx queue is by-passed (like pktgen does), this error
will be triggered at high rate and dmesg will be flooded with
this message. Whole system may become unstable and hang with
no possible recover except power cycle.

Rate-limit it to prevent dmesg flooding.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agowil6210: fix warning in pointer arithmetic
Vladimir Kondratiev [Mon, 1 Dec 2014 13:35:27 +0000 (15:35 +0200)]
wil6210: fix warning in pointer arithmetic

In some compilation environments, result of pointer arithmetic interpreted as int
while in others it is long int. Force conversion to long.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agowil6210: configurable vring sizes
Vladimir Kondratiev [Mon, 1 Dec 2014 13:35:02 +0000 (15:35 +0200)]
wil6210: configurable vring sizes

Allow to configure VRING size for both Rx and Tx via module parameters:
rx_ring_order and tx_ring_order. Parameters are ring size orders, i.e.
ring size calculated as 1 << order.
Defaults for both Tx and Rx are order 9, i.e. size 512

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agowil6210: remove wil_to_pcie_dev()
Vladimir Kondratiev [Mon, 1 Dec 2014 13:33:18 +0000 (15:33 +0200)]
wil6210: remove wil_to_pcie_dev()

There is no need to obtain physical device through
wil->pdev->dev path, as it is done by this macro.
The same device already stored as wiphy's device, thus
wil_to_dev() returns the same device as wil_to_pcie_dev()

Remove unnecessary macros, this allows to drop dependency
by pci.h in the firmware download code.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agowil6210: fix recovery after scan timeout
Vladimir Kondratiev [Mon, 1 Dec 2014 13:33:17 +0000 (15:33 +0200)]
wil6210: fix recovery after scan timeout

Scan timeout treated as indication for firmware error;
and should be handled in the same way.

Recovery state machine does not perform as designed because
its state is not updated in case of scan timeout.

Fix is to set recovery state machine into the proper state.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agowil6210: add handling of RX HTRSH interrupt
Vladimir Kondratiev [Mon, 1 Dec 2014 13:33:16 +0000 (15:33 +0200)]
wil6210: add handling of RX HTRSH interrupt

RX_HTRSH interrupt is handled in exactly the same manner
as RX_DONE interrupt - fetching accumulated packets from RX
ring. In addition there's a rate limitted warning message.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agowil6210: propagate disconnect reason
Vladimir Kondratiev [Mon, 1 Dec 2014 13:33:15 +0000 (15:33 +0200)]
wil6210: propagate disconnect reason

Propagate reason for the disconnect through the relevant call chains:
- report to cfg80211 reason as reported by the firmware
- provide to the firmware reason as requested by cfg80211

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agoath9k: do not access hardware on IRQs during reset
Felix Fietkau [Sun, 30 Nov 2014 20:58:32 +0000 (21:58 +0100)]
ath9k: do not access hardware on IRQs during reset

Instead of killing interrupts during reset when the first one happens,
kill them before issuing the reset.
This fixes an easy to reproduce crash with multiple cards sharing the
same IRQ.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agoath9k: set ATH_OP_INVALID before disabling hardware
Felix Fietkau [Sun, 30 Nov 2014 20:58:31 +0000 (21:58 +0100)]
ath9k: set ATH_OP_INVALID before disabling hardware

Closes another small IRQ handler race

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agoath9k: prevent early IRQs from accessing hardware
Felix Fietkau [Sun, 30 Nov 2014 20:58:30 +0000 (21:58 +0100)]
ath9k: prevent early IRQs from accessing hardware

IRQs are suppressed if ah == NULL and ATH_OP_INVALID being set in
common->op_flags. Close a short time window between those two.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agoath5k: fix hardware queue index assignment
Felix Fietkau [Sun, 30 Nov 2014 20:52:57 +0000 (21:52 +0100)]
ath5k: fix hardware queue index assignment

Like with ath9k, ath5k queues also need to be ordered by priority.
queue_info->tqi_subtype already contains the correct index, so use it
instead of relying on the order of ath5k_hw_setup_tx_queue calls.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agoath9k: fix BE/BK queue order
Felix Fietkau [Sun, 30 Nov 2014 19:38:41 +0000 (20:38 +0100)]
ath9k: fix BE/BK queue order

Hardware queues are ordered by priority. Use queue index 0 for BK, which
has lower priority than BE.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agoath9k_hw: fix hardware queue allocation
Felix Fietkau [Sun, 30 Nov 2014 19:38:40 +0000 (20:38 +0100)]
ath9k_hw: fix hardware queue allocation

The driver passes the desired hardware queue index for a WMM data queue
in qinfo->tqi_subtype. This was ignored in ath9k_hw_setuptxqueue, which
instead relied on the order in which the function is called.

Cc: stable@vger.kernel.org
Reported-by: Hubert Feurstein <h.feurstein@gmail.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agobrcmsmac: NULL dereferences in brcms_c_detach_mfree()
Dan Carpenter [Fri, 28 Nov 2014 09:43:40 +0000 (12:43 +0300)]
brcmsmac: NULL dereferences in brcms_c_detach_mfree()

The brcms_c_attach_malloc() function can call this with a NULL
"wlc->corestate" or "wlc->hw".

Also I threw in a bonus cleanup by deleting an obvious comment and a
no-op NULL assignment.  :)

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agoRevert "rt2x00: Endless loop on hub port power down"
Stanislaw Gruszka [Wed, 26 Nov 2014 14:29:16 +0000 (15:29 +0100)]
Revert "rt2x00: Endless loop on hub port power down"

This reverts commit 2ad69ac5976191e9bb7dc4044204a504653ad1bb. It
causes wireless device disappear when we get -EPROTO error form USB
request. I encounter such situation occasionally when resume form
suspend with RT3070 adapter:

[  289.619985] ieee80211 phy0: rt2x00usb_vendor_request: Error - Vendor Request 0x06 failed for offset 0x0404 with error -71
[  289.639368] ieee80211 phy0: rt2800_wait_bbp_ready: Error - BBP register access failed, aborting
[  289.639374] ieee80211 phy0: rt2800usb_set_device_state: Error - Device failed to enter state 4 (-5)

Without the patch, except printing error, device works just fine after
resume.

Currently after timeouts and REGISTER_BUSY_COUNT tuning, we should
not have any "endless loop", though we can wait quite long when driver
is trying to communicate with the device through non functioning USB
connection. Generally the problem that commit 2ad69ac597619 solves
is kinda artificial.

Cc: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agort2x00: change REGISTER_TIMEOUT
Stanislaw Gruszka [Wed, 26 Nov 2014 14:29:15 +0000 (15:29 +0100)]
rt2x00: change REGISTER_TIMEOUT

Waiting 500ms for register access is too long, decrease this value
to 100ms.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agort2x00: change REGISTER_BUSY_COUNT for USB
Stanislaw Gruszka [Wed, 26 Nov 2014 14:29:14 +0000 (15:29 +0100)]
rt2x00: change REGISTER_BUSY_COUNT for USB

Because of delays on USB we do not have to iterate so many times on
USB hardware when waiting for H/W register become valid.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agort2x00: use timeout in rt2x00usb_vendor_request
Stanislaw Gruszka [Wed, 26 Nov 2014 14:29:13 +0000 (15:29 +0100)]
rt2x00: use timeout in rt2x00usb_vendor_request

Use provided timeout value in rt2x00usb_vendor_request() instead
of iterating REGISTER_BUSY_COUNT times.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agobrcmsmac: extend hardware info shown in debugfs
Arend van Spriel [Tue, 25 Nov 2014 19:55:54 +0000 (20:55 +0100)]
brcmsmac: extend hardware info shown in debugfs

The hardware info now also include radio and phy information, which
can be helpful in debugging issues.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agobrcmutil: add helper function to format board revision
Arend van Spriel [Tue, 25 Nov 2014 19:55:53 +0000 (20:55 +0100)]
brcmutil: add helper function to format board revision

The board revision that is available in hardware can be translated
so it matches the labelling on the board. This is accomplished by
this helper function.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agort2800: calculate tx power temperature compensation on selected chips
Stanislaw Gruszka [Tue, 25 Nov 2014 14:17:29 +0000 (15:17 +0100)]
rt2800: calculate tx power temperature compensation on selected chips

Currently implemented temperature compensation is only valid on some of
supported chips. Other chips do not need temperature compensation or
need different way to do this (not yet implemented in the rt2800
driver). Trying to do run rt2800_get_gain_calibration_delta() when this
is not appropriate on particular chip gives bogus result of TX power
and can make connection unstable.

This is follow up to commit 8c8d2017ba25c510ddf093419048460db1109bc4
"rt2800: fix RT5390 & RT3290 TX power settings regression". On that
commit we avoid setting BBP_R1 register, but the real problem is wrong
temperature compensation calculation.

Reported-and-tested-by: Ronald Wahl <ronald.wahl@raritan.com>
Debugged-by: Ronald Wahl <ronald.wahl@raritan.com>
Cc: Mike Romberg <mike-romberg@comcast.net>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agowil6210: Fix potential memory leaks on error paths
Lino Sanfilippo [Fri, 28 Nov 2014 01:47:19 +0000 (02:47 +0100)]
wil6210: Fix potential memory leaks on error paths

Fix missing memory deallocation on error paths in wil_write_file_wmi()
and wil_write_file_txmgmt().

Reported-by: Ahmed Tamrawi <ahmedtamrawi@gmail.com>
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agoMerge branch 'for-linville' of git://github.com/kvalo/ath
John W. Linville [Mon, 1 Dec 2014 20:51:31 +0000 (15:51 -0500)]
Merge branch 'for-linville' of git://github.com/kvalo/ath

9 years agoMerge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetoot...
John W. Linville [Mon, 1 Dec 2014 20:49:58 +0000 (15:49 -0500)]
Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next

9 years agoath10k: simplify rx ring size/fill calculation
Michal Kazior [Thu, 27 Nov 2014 10:12:43 +0000 (11:12 +0100)]
ath10k: simplify rx ring size/fill calculation

Don't bother with fancy arithmetic and just
hardcode the final values.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: prevent pci tx/rx starvation
Michal Kazior [Thu, 27 Nov 2014 10:09:38 +0000 (11:09 +0100)]
ath10k: prevent pci tx/rx starvation

In theory it was possible to starve the system if
a tx/rx handler could implicitly trigger more
tx/rx pci events.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: remove transfer_id from ath10k_hif_cb::tx_completion
Michal Kazior [Thu, 27 Nov 2014 10:09:37 +0000 (11:09 +0100)]
ath10k: remove transfer_id from ath10k_hif_cb::tx_completion

Pass the eid argument via skbuff control buffer.
This will make it possible to work with queues of
HTC event buffers.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: remove unused callback argument from struct ath10k_hif_cb::rx_completion
Michal Kazior [Thu, 27 Nov 2014 10:09:36 +0000 (11:09 +0100)]
ath10k: remove unused callback argument from struct ath10k_hif_cb::rx_completion

This wasn't used since forever and there are no
plans on using it.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: make wmi service bitmap non-debug
Michal Kazior [Thu, 27 Nov 2014 09:11:17 +0000 (10:11 +0100)]
ath10k: make wmi service bitmap non-debug

The service bitmap can be used to determine
firmware capabilities.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: add sanity checks for service bmap parsing
Michal Kazior [Thu, 27 Nov 2014 09:11:16 +0000 (10:11 +0100)]
ath10k: add sanity checks for service bmap parsing

This shouldn't really happen but take into account
the original service bitmap length when mapping
service ids.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: fix wmi svc bitmap dbg print
Michal Kazior [Thu, 27 Nov 2014 09:11:15 +0000 (10:11 +0100)]
ath10k: fix wmi svc bitmap dbg print

The dump print uses sizeof() but since service_map
was a mere pointer the dump was too short.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: add pointer constness to traces
Michal Kazior [Thu, 27 Nov 2014 07:42:11 +0000 (08:42 +0100)]
ath10k: add pointer constness to traces

Traces shouldn't modified passed data. This will
make it possible to pass const arguments to
traces.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: do not limit RTS threshold value to 2347
Vivek Natarajan [Wed, 26 Nov 2014 07:06:12 +0000 (09:06 +0200)]
ath10k: do not limit RTS threshold value to 2347

Increase the rts threshold from the legacy value of 2347 to support higher
threshold limit.

Signed-off-by: Vivek Natarajan <nataraja@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoBluetooth: Automatically flushable packets aren't allowed on LE links
Steven Walter [Wed, 19 Nov 2014 14:41:17 +0000 (09:41 -0500)]
Bluetooth: Automatically flushable packets aren't allowed on LE links

The Bluetooth spec states that automatically flushable packets may not
be sent over a LE-U link.

Signed-off-by: Steven Walter <stevenrwalter@gmail.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
9 years agoBluetooth: ath3k: Add support of MCI 13d3:3408 bt device
Dmitry Tunin [Tue, 25 Nov 2014 17:19:52 +0000 (20:19 +0300)]
Bluetooth: ath3k: Add support of MCI 13d3:3408 bt device

Add support for Bluetooth MCI WB335 (AR9565) Wi-Fi+bt module. This
Bluetooth module requires loading patch and sysconfig by ath3k driver.

T:  Bus=01 Lev=02 Prnt=03 Port=00 Cnt=01 Dev#= 20 Spd=12   MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=13d3 ProdID=3408 Rev= 0.02
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
A:  FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=01
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Signed-off-by: Dmitry Tunin <hanipouspilot@gmail.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Cc: stable@vger.kernel.org
9 years agoath10k: fix station count enforcement
Michal Kazior [Tue, 25 Nov 2014 14:16:05 +0000 (15:16 +0100)]
ath10k: fix station count enforcement

The number of peers isn't directly translatable to
the number of stations because ath10k needs to
reserve a few extra peers for special cases like
multi-vif concurrency.

The previous limit was 126 and 15 stations in AP
mode for 10.x and main firmware branches
respectively. The limit is now 128 and 16 which
was the original intention.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: clean up num_peers locking
Michal Kazior [Tue, 25 Nov 2014 14:16:04 +0000 (15:16 +0100)]
ath10k: clean up num_peers locking

The var was supposed to be protected by data_lock
but it wasn't so in all instances. It's actually
not necessary to have a spinlock protected
num_peers so drop it.

All instances of num_peers are already within
conf_mutex sections so use that.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: add missing goto
Michal Kazior [Tue, 25 Nov 2014 14:16:03 +0000 (15:16 +0100)]
ath10k: add missing goto

This prevents warning spamming if peer creation
fails during sta_state in some cases.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: add memory dump debugfs interface
Yanbo Li [Tue, 25 Nov 2014 10:24:48 +0000 (12:24 +0200)]
ath10k: add memory dump debugfs interface

Add mem_val debugfs file for dumping the firmware (target) memory and also for
writing to the memory. The firmware memory is accessed through one file which
uses position of the file as the firmware memory address. For example, with dd
use skip parameter for the address.

Beucase target memory width is 32 bits it's strongly recommended to use
blocksize divisable with 4 when using this interface. For example, when using
dd use bs=4 to set the block size to 4 and remember to divide both count and
skip values with four.

To read 4 kB chunk from address 0x400000:

dd if=mem_value bs=4 count=1024 skip=1048576 | xxd -g1

To write value 0x01020304 to address 0x400400:

echo 0x01020304 | xxd -r | dd of=mem_value bs=4 seek=1048832

To read 4 KB chunk of memory and then write back after edit:

dd if=mem_value of=tmp.bin bs=4 count=1024 skip=1048576
emacs tmp.bin
dd if=tmp.bin of=mem_value bs=4 count=1024 seek=1048576

Signed-off-by: Yanbo Li <yanbol@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: add register access debugfs interface
Yanbo Li [Tue, 25 Nov 2014 10:24:33 +0000 (12:24 +0200)]
ath10k: add register access debugfs interface

Debugfs files reg_addr and reg_val are used for reading and writing to the
firmware (target) registers. reg_addr contains the address to be accessed,
which also needs to be set first, and reg_value is when used for reading and
writing the actual value in ASCII.

To read a value from the firmware register 0x100000:

# echo 0x100000 > reg_addr
# cat reg_value
0x00100000:0x000002d3

To write value 0x2400 to address 0x100000:

# echo 0x100000 > reg_addr
# echo  0x2400 > reg_value
#

Signed-off-by: Yanbo Li <yanbol@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: fix bug reported by lockdep
Sujith Manoharan [Tue, 25 Nov 2014 06:17:00 +0000 (11:47 +0530)]
ath10k: fix bug reported by lockdep

ath10k_tx_wep_key_work() acquires conf_mutex, so
cancelling it when conf_mutex is already taken
in ath10k_remove_interface() is incorrect, so
move it outside the lock.

Snippet from the lockdep report:

kernel: ======================================================
kernel: [ INFO: possible circular locking dependency detected ]
kernel: 3.18.0-rc5-wl-debug #34 Tainted: G           O
kernel: -------------------------------------------------------
kernel: hostapd/451 is trying to acquire lock:
kernel:  ((&arvif->wep_key_work)){+.+...}, at: [<ffffffff810872d5>] flush_work+0x5/0x290
kernel: but task is already holding lock:
kernel:  (&ar->conf_mutex){+.+.+.}, at: [<ffffffffa0b99f00>] ath10k_remove_interface+0x40/0x290 [ath10k_core]
kernel: which lock already depends on the new lock.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: fix locking for WEP keys
Sujith Manoharan [Tue, 25 Nov 2014 06:16:59 +0000 (11:46 +0530)]
ath10k: fix locking for WEP keys

peer->keys needs to be protected by data_lock
since it is also accessed from the WMI path.

Both install() and clear() routines for peer
keys modify the key contents, so use the data_lock
to avoid races.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: fix shared WEP
Sujith Manoharan [Tue, 25 Nov 2014 06:16:58 +0000 (11:46 +0530)]
ath10k: fix shared WEP

When static keys are used in shared WEP, when a
station is associated, message 3 is sent with an
encrypted payload. But, for subsequent
authentications that are triggered without a
deauth, the auth frame is decrypted by the HW.

To handle this, check if the WEP keys have already
been set for the peer and if so, mark the
frame as decrypted. This scenario can happen
when a station changes its default TX key and initiates
a new authentication sequence.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: don't drop corrupted mgmt frames
Michal Kazior [Mon, 24 Nov 2014 14:34:08 +0000 (15:34 +0100)]
ath10k: don't drop corrupted mgmt frames

Some firmware revisions don't seem to deilver
management frames with FCS error via WMI so narrow
down the HTT rule to not drop corrupted management
frames.

This basically increases number of frames ath10k
reports while sniffing.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: fix offchannel cancel failures
Michal Kazior [Mon, 24 Nov 2014 13:58:33 +0000 (14:58 +0100)]
ath10k: fix offchannel cancel failures

When mac80211 requests driver to cancel a hw roc
the driver must not call the expired() callback or
else roc will fail in some cases depending on how
things get scheduled.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: make hw roc more reliable
Michal Kazior [Mon, 24 Nov 2014 13:58:32 +0000 (14:58 +0100)]
ath10k: make hw roc more reliable

With P2P concurrency requested hw roc duration
time can be very small. Some firmware revisions
refuse scan requests with too small channel dwell
time.

This prevents messages like, e.g. with connected
STA vif and performing P2P Find:

 ath10k_pci 0000:00:05.0: failed to switch to channel for roc scan
 ieee80211 phy3: failed to start next HW ROC (-110)

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: fix offchan reliability
Michal Kazior [Mon, 24 Nov 2014 13:58:31 +0000 (14:58 +0100)]
ath10k: fix offchan reliability

New firmware revisions don't need peer creation
when doing offchannel tx. Earlier revisions would
queue and never release frames without a peer.

This prevent new firmware revisions from stopping
replenishing wmi-htc tx credits and improves
reliability of offchannel tx which would sometimes
silently fail.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: remove extra_tx_headroom
Michal Kazior [Mon, 24 Nov 2014 14:04:46 +0000 (15:04 +0100)]
ath10k: remove extra_tx_headroom

Comment was out-of-date. The headroom is no longer
necessary because HTT Tx fragment list is stored
in dma pool item associated with each sk_buff.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: use configured nss instead of max nss
Ben Greear [Mon, 24 Nov 2014 14:22:10 +0000 (16:22 +0200)]
ath10k: use configured nss instead of max nss

When re-associating a station, the nss was set back to
maximum value even if user had configured small number
of tx chains.  So, pay attention to user's config in
this case as well.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agoath10k: apply chainmask settings to vdev on creation
Ben Greear [Mon, 24 Nov 2014 14:22:10 +0000 (16:22 +0200)]
ath10k: apply chainmask settings to vdev on creation

It appears it takes more than just setting the
hardware's chainmask to make things work well.  Without
this patch, a vdev would only use 1x1 rates when chainmask
was set to 0x3.

Setting the 'nss' (number of spatial streams) on the vdev
helps the firmware's rate-control algorithm work properly.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9 years agomac802154: remove unnecessary if statement
Varka Bhadram [Tue, 25 Nov 2014 11:04:43 +0000 (16:34 +0530)]
mac802154: remove unnecessary if statement

Removes unnecessary if statement check for net device. Error check performed
after alloc_netdev().

ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size, name,
    NET_NAME_UNKNOWN, ieee802154_if_setup);
        if (!ndev)
                return ERR_PTR(-ENOMEM);
..

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoieee802154: fix spelling mistakes
Varka Bhadram [Tue, 25 Nov 2014 04:34:57 +0000 (10:04 +0530)]
ieee802154: fix spelling mistakes

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agomwifiex: add Tx status support for ACTION frames
Amitkumar Karwar [Tue, 25 Nov 2014 14:43:06 +0000 (06:43 -0800)]
mwifiex: add Tx status support for ACTION frames

ACK status (0/1) for ACTION frames is informed to cfg80211. We
will extend existing logic used for EAPOL frames. The cfg80211
API is different here. Also, we need to explicitly free cloned
skb.

Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agomwifiex: add Tx status support for EAPOL packets
Amitkumar Karwar [Tue, 25 Nov 2014 14:43:05 +0000 (06:43 -0800)]
mwifiex: add Tx status support for EAPOL packets

Firmware notifies the driver through event if EAPOL data packet
has been acked or not. We will inform this status to userspace
listening on a socket.

Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agomwifiex: skip delay main work logic for USB interface.
Amitkumar Karwar [Tue, 25 Nov 2014 14:43:04 +0000 (06:43 -0800)]
mwifiex: skip delay main work logic for USB interface.

We had introduced delay main work logic to avoid processing
interrupts when Rx pending packet count reaches high threshold.
interrupt processing is restarted later when packet count
reduces lower threashold. This helped to reduce unnecessary
overhead and improve throughput for SD and PCIe chipsets.

As there are no interrupts for USB, we will skip this logic for
USB chipsets.

Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agomwifiex: fix scan problem on big endian platforms
Amitkumar Karwar [Tue, 25 Nov 2014 14:43:03 +0000 (06:43 -0800)]
mwifiex: fix scan problem on big endian platforms

This patch adds missing endian conversion for beacon size while
processing scan response.

Reported-by: Daniel Mosquera <daniel.mosquera@ctag.com>
Tested-by: Daniel Mosquera <daniel.mosquera@ctag.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agomwifiex: fix sparse warning
Amitkumar Karwar [Tue, 25 Nov 2014 14:43:02 +0000 (06:43 -0800)]
mwifiex: fix sparse warning

This patch fixes following sparse warnings:

drivers/net/wireless/mwifiex/util.c:152:19: warning: cast from restricted __le16
drivers/net/wireless/mwifiex/util.c:152:19: warning: restricted __le16 degrades to integer

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agoath9k: add TPC capability to TX descriptor path
Lorenzo Bianconi [Mon, 24 Nov 2014 23:21:41 +0000 (00:21 +0100)]
ath9k: add TPC capability to TX descriptor path

Add TPC capability to TX descriptor path. Cap per-packet TX power according to
TX power per-rate tables. Currently TPC is supported just by AR9003 based chips

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agoath9k: add TX power per-rate tables
Lorenzo Bianconi [Mon, 24 Nov 2014 23:21:40 +0000 (00:21 +0100)]
ath9k: add TX power per-rate tables

Add TX power per-rate tables for different MIMO modes (e.g STBC) in order to
cap the maximum TX power value per-rate in the TX descriptor path.
Cap TX power for self generated frames (ACK, RTS/CTS).
Currently TPC is supported just by AR9003 based chips

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agobrcmfmac: correct .disconnect() callback while connecting
Arend van Spriel [Thu, 20 Nov 2014 21:27:02 +0000 (22:27 +0100)]
brcmfmac: correct .disconnect() callback while connecting

When the driver has sent a join iovar to the firmware it waits
for the events to report result of the connection. However, the
wpa_supplicant will request a .disconnect() after a timeout. So
upon calling .disconnect() the interface state may still be
CONNECTING. Clear the CONNECTING bit as well.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agonet: wireless: rtlwifi: rtl8192ee: Fix compilation of the driver
Andreas Ruprecht [Mon, 24 Nov 2014 18:34:32 +0000 (19:34 +0100)]
net: wireless: rtlwifi: rtl8192ee: Fix compilation of the driver

In the Makefile for this driver, the wrong Kconfig option is used
to trigger the compilation of the object file. This leads to the
driver only being included into the kernel when both CONFIG_RTL8821AE
and CONFIG_RTL8192AE are set to "y".

Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agonet: wireless: rtlwifi: Do not always include drivers in obj-m
Andreas Ruprecht [Mon, 24 Nov 2014 18:34:31 +0000 (19:34 +0100)]
net: wireless: rtlwifi: Do not always include drivers in obj-m

In four of the rtlwifi drivers, the Makefile contains superfluous
statements indicating the compilation of the driver as an LKM
regardless of the corresponding Kconfig option.

If the corresponding option is set to 'y', the build system will then
see the object file in obj-m and obj-y, which leads to a compilation
as a built-in only. Even though this leads to the desired behavior,
the unconditional appearance in obj-m is confusing for someone reading
the Makefile.

This patch removes the superfluous Makefile statements.

Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agoath: Fix a false radar detection pattern
Vivek Natarajan [Mon, 24 Nov 2014 11:56:22 +0000 (17:26 +0530)]
ath: Fix a false radar detection pattern

For FCC and JP, in one of the radar patterns, PPB and PRF seems to be
interchanged leading to frequent incorrect radar detections.

Signed-off-by: Vivek Natarajan <nataraja@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agowireless/p54: Remove duplicated net2280 header
Ricardo Ribalda Delgado [Mon, 24 Nov 2014 10:19:51 +0000 (11:19 +0100)]
wireless/p54: Remove duplicated net2280 header

The usb gadget driver net2280 has exported a header file with the
register definition of the net2280 chip.

Remove the custom/duplicated header file in favor of that header file
in include/linux

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agortlwifi: update RCR register in rtl_op_configure_filter()
Lorenzo Bianconi [Sat, 22 Nov 2014 11:18:26 +0000 (12:18 +0100)]
rtlwifi: update RCR register in rtl_op_configure_filter()

Reconfigure RCR register in rtl_op_configure_filter() in order to apply RX
filter configuration

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>