iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
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: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2020-02-22 10:02:21 +01:00
parent 1a7d3f4793
commit 633348f2ca
4 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/mediatek/mt76/mt7603/debugfs.c
View File

@ -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);
}

1
drivers/net/wireless/mediatek/mt76/mt7603/init.c
View File

@ -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)

3
drivers/net/wireless/mediatek/mt76/mt7603/mac.c
View File

@ -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

1
drivers/net/wireless/mediatek/mt76/mt7603/mt7603.h
View File

@ -143,6 +143,7 @@ struct mt7603_dev {
u8 ed_strong_signal;
s8 sensitivity;
u8 sensitivity_limit;
u8 beacon_check;
u8 tx_hang_check;