Commit 633348f2 authored by Felix Fietkau's avatar Felix Fietkau
Browse files

mt76: mt7603: add upper limit for dynamic sensitivity minimum receive power 



If the minimum power is raised too much, it can make it impossible for weaker
clients to connect, and there are some scenarios where the false detects will
not go down no matter how much the sensitivity is adjusted.
Fixes connectivity issues in some rare cases

Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent 1a7d3f47

drivers/net/wireless/mediatek/mt76/mt7603/debugfs.c

+2 −0
Original line number Diff line number Diff line
@@ -121,4 +121,6 @@ void mt7603_init_debugfs(struct mt7603_dev *dev) 
				    mt7603_reset_read);

	debugfs_create_devm_seqfile(dev->mt76.dev, "radio", dir,

				    mt7603_radio_read);

	debugfs_create_u8("sensitivity_limit", 0600, dir,

			    &dev->sensitivity_limit);

}

drivers/net/wireless/mediatek/mt76/mt7603/init.c

+1 −0
Original line number Diff line number Diff line
@@ -540,6 +540,7 @@ int mt7603_register_device(struct mt7603_dev *dev) 
		dev->mphy.antenna_mask = 1;



	dev->slottime = 9;

	dev->sensitivity_limit = 28;



	ret = mt7603_init_hardware(dev);

	if (ret)

drivers/net/wireless/mediatek/mt76/mt7603/mac.c

+2 −1
Original line number Diff line number Diff line
@@ -1750,7 +1750,8 @@ mt7603_false_cca_check(struct mt7603_dev *dev) 
	min_signal -= 15;



	false_cca = dev->false_cca_ofdm + dev->false_cca_cck;

	if (false_cca > 600) {

	if (false_cca > 600 &&

	    dev->sensitivity < -100 + dev->sensitivity_limit) {

		if (!dev->sensitivity)

			dev->sensitivity = -92;

		else

drivers/net/wireless/mediatek/mt76/mt7603/mt7603.h

+1 −0
Original line number Diff line number Diff line
@@ -143,6 +143,7 @@ struct mt7603_dev { 
	u8 ed_strong_signal;



	s8 sensitivity;

	u8 sensitivity_limit;



	u8 beacon_check;

	u8 tx_hang_check;

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