Since channel active time is not available from MIB registers, emulate it
using the kernel boot time (in us)
Signed-off-by: Felix Fietkau <[email protected]>
Use 11M as tx rate for CCK protection control frames
Fixes: 7bc04215a66b ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <[email protected]>
Using the NAPI or netdev frag cache along with other drivers can lead to
32 KiB pages being held for a long time, despite only being used for
very few page fragments.
This can happen if the driver grabs one or two fragments for rx ring
refill, while other drivers use (and free up) the remaining fragments.
The 32 KiB higher-order page can only be freed once all users have freed
their fragments.
Depending on the traffic patterns, this can waste a lot of memory and
look a lot like a memory leak.
Signed-off-by: Felix Fietkau <[email protected]>
When switching between low gain (high RSSI) and high gain settings, it
can take a few seconds to adjust to the current environment.
This can lead to short periods of time with extreme packet loss.
When switching from low_gain=1 to low_gain=2, start with the same gain
adjustment value instead of the lowest to avoid spikes of huge numbers
of false CCA events
Also avoid resetting adjustment values on switching between low_gain
values 0 and 1, since it affects only the upper limit of vga adjustment
Signed-off-by: Felix Fietkau <[email protected]>
The range should only be limited to 4 for really weak signals, for all
other gain settings the range is 16.
Signed-off-by: Felix Fietkau <[email protected]>
usleep_range can cause excessive latency on channel change if waiting
for the MAC to stop fails. It will be forced to stop by the code
following that loop anyway.
Signed-off-by: Felix Fietkau <[email protected]>
During scans, mac80211 frequently switches back to the home channel to
minimize interruption of ongoing traffic. Keep regular tx queues active
during that time.
Signed-off-by: Felix Fietkau <[email protected]>
The beacon timer drifts by 1 microsecond every TBTT. After 20 minutes
with a beacon interval of 100, the drift will be almost 12 ms, enough to
cause weird issues for devices in powersave mode.
Since the beacon timer is configured in units of 1/16 TU (64 us), we
need to adjust it once every 64 beacons and only for one beacon.
Signed-off-by: Felix Fietkau <[email protected]>
If the radio was previously in running state, it can receive some
packets before it is able to process them.
This can lead to a crash if the channel is not initialized yet.
Discard all rx packets until start() is called
Signed-off-by: Felix Fietkau <[email protected]>
According to 802.11-2007 17.3.8.6 (slot time), the slot time should
be increased by 3 us * coverage class. Taking into account coverage
class in slot time configuration allows to increase by an order of
magnitude the throughput on a 4Km link in a noisy environment
Tested-by: Luca Bisti <[email protected]>
Tested-by: Gaetano Catalli <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
For encryption to work properly, the BSS index needs to be initialized
for the WCID entry used for the interface.
Signed-off-by: Felix Fietkau <[email protected]>
Add a usleep_range in mt76x2_mac_stop routine in order to add
a polling delay checking values of MT_MAC_STATUS and IBI_R12 registers
Signed-off-by: Lorenzo Bianconi <[email protected]>
Fix is_mt7612 routine since asic version is set in mt76_dev revision
field and not in mt76x2_dev one.
Moreover remove mt76x2_dev rev field since it is never used in the
driver
Fixes: 7bc04215a66b ('mt76: add driver code for MT76x2e')
Signed-off-by: Lorenzo Bianconi <[email protected]>
Add a spinlock in mt76_rx_complete. Without this, multiple stats updates
could happen in parallel, which can lead to deadlocks. There are
probably more corner cases fixed by this change.
Signed-off-by: Felix Fietkau <[email protected]>
The check within mt76_txq_send_burst is not enough, as it happens after
a first frame has already been queued up
Signed-off-by: Felix Fietkau <[email protected]>
- discard packets that have no rx group 3 (signal/rate info missing)
- discard packets marked as VHT (no hardware support)
- discard packets with invalid HT rate values
Signed-off-by: Felix Fietkau <[email protected]>
When doing rate probing, multiple frames might end up getting sent with
the probe rate, because of the way that rate probing is set up.
This race window is most visible with MCS rates and aggregation.
To improve rate control stats accuracy, pull the final tx rate from the
descriptor
Signed-off-by: Felix Fietkau <[email protected]>
Tx status reporting cannot account for the tx attempt starting at a rate
further down the chain, so without this flag it leads to inaccurate
results.
Signed-off-by: Felix Fietkau <[email protected]>
In some boards mpcie leds have reversed polarity.
This patch allow change led polarity from userspace.
Signed-off-by: Pawel Dembicki <[email protected]>
Fix mt76x2_temp_tx_alc_enabled routine since in order to enable tx_alc
temperature compensation it necessary to take into account BIT(15) of
MT_EE_TX_POWER_EXT_PA_5G eeprom info
Fixes: 7bc04215a66b ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <[email protected]>
Initialize default values for temperature compensation in TX_ALC_CFG_{1,2}
if tssi has been enabled
Signed-off-by: Lorenzo Bianconi <[email protected]>
Felix Fietkau