mt76: improve gain adjustment in noisy environments

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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 <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

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Felix Fietkau 2018-06-21 11:18:01 +02:00 • committed by Kalle Valo

parent 32e49efe0f

commit c3ae2103e0

1 changed files with 16 additions and 10 deletions

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26

drivers/net/wireless/mediatek/mt76/mt76x2_phy.c

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