Fix the following compilation warning in mt76_eeprom_override routine
when CONFIG_OF is not set and label 'out' is not actually used

drivers/net/wireless/mediatek/mt76/eeprom.c: In function ‘mt76_eeprom_override’:
drivers/net/wireless/mediatek/mt76/eeprom.c:100:1: warning: label ‘out’ defined but not used [-Wunused-label]
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Rely on FIELD_PREP macro for led register definitions and
remove open coding
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Rely on FIELD_PREP macro for led register definitions and
remove open coding
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Initialize brightness_set and blink_set callbacks to
mt7615_led_set_brightness and mt7615_led_set_blink in order to enable
LED support in mt7615 driver
Tested-by: Deng Qingfang <dengqf6@mail2.sysu.edu.cn>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

During the cleanup of the aggregation session, a rx handler (or release timer)
on another CPU might still hold a pointer to the reorder buffer and could
attempt to release some packets.
Clearing pointers during cleanup avoids a theoretical use-after-free bug here.
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Before extracting the tid out of the packet, check if it was qos-data.
Only accept tid values 0-7
Also, avoid accepting the hardware queue as skb queue mapping, it could
lead to an overrun. Instead, derive the hardware queue from the tid number,
in order to avoid issues with packets being filtered multiple times.
This also fixes a mismatch between hardware and software queue indexes.
Signed-off-by: Felix Fietkau <nbd@nbd.name>

MCU_EXT_CMD_EFUSE_BUFFER_MODE needs more time on initialization, and
with only 10 seconds it sometimes runs into timeouts.
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Read measurements every 100 ms and build a simple moving average
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Fix default CFEND_RATE and replace hardcode values.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

We do not call mt76x02_mac_set_beacon() with NULL skb any longer and
we do not need to return error value.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

With current implementation we do not cleanup beacon memory, so is not
needed to call mt76x02_mac_set_beacon() with NULL skb.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

For transferring data over USB the optimal size is endpoint maxpacket.
For my hardware maxpaket for control endpoint is 64 bytes and changing
to this value from 128 bytes further shorten TBTT work time from
3ms to 1ms.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

This patch enables channel switch support on mt76 usb interfaces.
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Use larger batches for usb copy to speed this operation up. Otherwise it
would be too slow for copying new beacons or broadcast frames over usb.
Assure, that always a multiple of 4 Bytes is copied, as outlined in
850e8f6f "mt76: round up length on mt76_wr_copy" from Felix Fietkau.
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

This patch removes a mt76_wr_copy call from the beacon path to hw.
The skb which is used in this place gets therefore build with txwi
inside its data. For mt76 usb drivers, this saves one synchronuous
copy call over usb, which lets the beacon work complete faster.

In mmio case, there is not enough headroom to put the txwi into the
skb, it is therefore using an additional mt76_wr_copy, which is fast
over mmio. Thanks Stanislaw for pointing this out.
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

On adding vifs the idx can become 1 + (7 & 7) = 8 for APs.
Check against that, as only AP vif idx 0-7 is possible.
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Sending beacons to the hardware always happens in batches. In order to
speed up beacon processing on usb devices, this patch splits out common
code an calls it only once.

Beacons are sequentially written into the beacon memory area, by
tracking its usage with the dev->beacon_data_count. For MBSS support
and buffered traffic dev->beacon_data_count is used to create the bypass
mask.

The code is also adapted for the mmio part of the driver, but should not
have any performance implication there.

MBSS tests were performed with AVM AC860 USB NIC with temporary support
for 5 BSS'. Different combinations of active vifs were created and
brought up. Afterwards connection and data transfer was tested for the
announced BSS'.
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76 hw does not send beacons from beacon slots, if the corresponding
bitmask is set accordingly. Therefore we can omit clearing the beacon
memory. Clearing uses many usb calls, if usb drivers are used. These
calls unnecessarily slow down the beacon tasklet. Thanks to Stanislaw
Gruzska for pointing this out.
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Before this patch, mt76 handled rx traffic for all TIDs equally,
when released from reorder buffer early. This patch uses an AC specific
reorder timeout, in order to release partial aggregated frames for video
ACs earlier. Voice ACs are currently not aggregated (thanks to Felix for
this hint). For example, ath10k also uses AC specific reorder timeouts
(reported by firmware in that case).
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Add the capability to configure acktimeout for mt7615 driver. Moreover
configure slottime according to the value provided by mac80211
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Set 0 as minimum configurable value for coverage_class since mt76 does
not support dynack
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Fix coverage_class type in mt76x02_dev data structure since
coverage_class can be negative to enable dynack (just supported by
ath9k). Set 0 as minimum value for coverage_class

Fixes: 7bc04215 ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Print fw_ver and build_date members of struct mt7615_fw_trailer
similarly to what appears in the output of 'dmesg' when the MCU firmware
is loaded.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Some compilers (tested with 4.8.5 from CentOS 7) fail properly process
FIELD_GET inside an inline function, which ends up in a BUILD_BUG_ON.
Convert inline function to a macro.

Fixes commit bf92e768 ("mt76: mt7615: add support for per-chain
signal strength reporting")
Reported in https://lkml.org/lkml/2019/9/21/146Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Pablo Greco <pgreco@centosproject.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Introduce big-endian property to specify mtd radio partition endianness
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76x0e users reported some devices (e.g TP-Link Archer VR200v) have
been flashed with big endian radio partition. Add the possibility to
specify eeprom endianness using big-endian dts property and in case
covert eeprom data in little endian
Tested-by: Kevin Schmidt <kevin.patrick.schmidt@googlemail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Reset MT_MIB_STAT_CCA after channel switch since it is used to track busy
time starting from 'commit dcff8d4d ("mt76: mt7603: switch to a
different counter for survey busy time")'
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Make sure the MAC address is checked before function returns.

If CONFIG_OF is set and the device node is null, the function will
return directly, and an invalid MAC address will not be checked.
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Fixes potential RCU issues and avoids calling ieee80211_rx_napi with softirq
enabled.
Signed-off-by: Felix Fietkau <nbd@nbd.name>

To avoid having the hardware potentially write to memory behind stale
descriptors, set the dma-done flag on all of them before cleaning up
allocated rx buffers
Signed-off-by: Felix Fietkau <nbd@nbd.name>

The MT7615 firmware needs to know the association id at creation time,
which is unavailable during the transition from notexist to none in
.sta_state.
This can cause a number of issues, probably also breaking powersave
support.
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Loading the mcu firmware and waiting for it to boot takes a long time,
which adds a significant amount to the system boot time.
Fix this by running the mcu init from a workqueue and waiting for it to
complete before starting the phy or issuing mcu commands via debugfs
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Beacon changes need to be sent to the firmware, otherwise it will
keep sending stale data
Signed-off-by: Felix Fietkau <nbd@nbd.name>

This is only used for testing for now. In the future it will be possible to
enable the second PHY through an proper API via device tree

Running:
 echo 1 > /sys/kernel/debug/ieee80211/phyX/mt76/dbdc

will register a second wiphy (and limit the primary one to 2 spatial streams).
The second wiphy will only be able to run on 5 GHz, while the primary one can
operate in both bands (if supported by the device).
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Beacons and management frames need to explicitly select the alternate tx
queues in order to be sent out on the right phy
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Run initialization per phy
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Use the first two WMM slots for the primary phy and the second two for the
secondary phy.
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Program the RMAC CHFREQ registers to properly indicate the band that the
frames are received on.
Add some sanity checks to the programmed values, because the firmware
programs these registers differently
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Move chainmask to struct mt7615_phy and instead of needlessly making the
format similar to values for older chips, make it refer to the actual chain
bits used for the rx/tx path.
This is important for multiple wiphy support, where for a secondary phy,
antenna_mask will start at 0, and chainmask will start at the chain offset
(bit 2)
Signed-off-by: Felix Fietkau <nbd@nbd.name>

There are two DFS detectors on the chip. When using 160 MHz channel bandwidth
(not supported in dual-wiphy mode), both are used. Otherwise, one detector is
used per wiphy.
Rework the code to start/stop them separately per phy and to indicate the
radar event on the right phy based on the detector index
Signed-off-by: Felix Fietkau <nbd@nbd.name>