ExternalVendorCode/openwrt
1
0
Fork 0
mirror of https://github.com/openwrt/openwrt.git synced 2024-12-29 10:08:59 +00:00
Code Issues Actions 6 Packages Projects Releases Wiki Activity
a98cacbeb4
openwrt/package/kernel/mac80211/patches/rt2x00/002-v6.7-wifi-rt2x00-fix-MT7620-low-RSSI-issue.patch

44 lines
2.0 KiB
Diff
Raw Normal View History

mac80211: sync some rt2x00 patches with wireless-next Some local patches have been sent to upstream and they are slightly different from the upstream version. So it's better to replace them to avoid conflicts with the new mac80211 backport driver. The different parts have been merged into patch 996. This commit also includes some additional fixes: * Fix watchdog function. * Improve MT7620 register initialization. * Introduce DMA busy watchdog for rt2800. P.S. Sometimes rt2800 series chips may fall into a DMA busy state. The tx queues become very slow and the client cannot connect to the AP. Usually, We can see a lot of hostapd warnings at this point: 'hostapd: IEEE 802.11: did not acknowledge authentication response' The DMA busy watchdog can help the driver automatically recover from this abnormal state. By the way, setting higer 'cell_density' and disabling 'disassoc_low_ack' can significantly reduce the probability of the DMA busy. Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2023-10-25 12:09:23 +00:00
From 2ecfe6f07e8e6257cad3d3290c5aec2102120041 Mon Sep 17 00:00:00 2001
mac80211: rt2x00: fix MT7620 low RSSI issue Introducing SoC specific RSSI base value to fix the low RSSI issue on MT7620. With this fix[1], the RSSI value reported by MT7620 will increase by 10 dB. [1] https://lore.kernel.org/linux-wireless/TYAP286MB031571CDB146C414A908A66DBCFEA@TYAP286MB0315.JPNP286.PROD.OUTLOOK.COM/ Fixes: https://github.com/openwrt/openwrt/issues/11036 Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2023-09-23 01:25:15 +00:00
From: Shiji Yang <yangshiji66@outlook.com>
mac80211: sync some rt2x00 patches with wireless-next Some local patches have been sent to upstream and they are slightly different from the upstream version. So it's better to replace them to avoid conflicts with the new mac80211 backport driver. The different parts have been merged into patch 996. This commit also includes some additional fixes: * Fix watchdog function. * Improve MT7620 register initialization. * Introduce DMA busy watchdog for rt2800. P.S. Sometimes rt2800 series chips may fall into a DMA busy state. The tx queues become very slow and the client cannot connect to the AP. Usually, We can see a lot of hostapd warnings at this point: 'hostapd: IEEE 802.11: did not acknowledge authentication response' The DMA busy watchdog can help the driver automatically recover from this abnormal state. By the way, setting higer 'cell_density' and disabling 'disassoc_low_ack' can significantly reduce the probability of the DMA busy. Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2023-10-25 12:09:23 +00:00
Date: Sat, 23 Sep 2023 09:01:01 +0800
Subject: wifi: rt2x00: fix MT7620 low RSSI issue
mac80211: rt2x00: fix MT7620 low RSSI issue Introducing SoC specific RSSI base value to fix the low RSSI issue on MT7620. With this fix[1], the RSSI value reported by MT7620 will increase by 10 dB. [1] https://lore.kernel.org/linux-wireless/TYAP286MB031571CDB146C414A908A66DBCFEA@TYAP286MB0315.JPNP286.PROD.OUTLOOK.COM/ Fixes: https://github.com/openwrt/openwrt/issues/11036 Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2023-09-23 01:25:15 +00:00
On Mediatek vendor driver[1], MT7620 (RT6352) uses different RSSI
base value '-2' compared to the other RT2x00 chips. This patch
introduces the SoC specific base value to fix the low RSSI value
reports on MT7620.
[1] Found on MT76x2E_MT7620_LinuxAP_V3.0.4.0_P3 ConvertToRssi().
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
mac80211: sync some rt2x00 patches with wireless-next Some local patches have been sent to upstream and they are slightly different from the upstream version. So it's better to replace them to avoid conflicts with the new mac80211 backport driver. The different parts have been merged into patch 996. This commit also includes some additional fixes: * Fix watchdog function. * Improve MT7620 register initialization. * Introduce DMA busy watchdog for rt2800. P.S. Sometimes rt2800 series chips may fall into a DMA busy state. The tx queues become very slow and the client cannot connect to the AP. Usually, We can see a lot of hostapd warnings at this point: 'hostapd: IEEE 802.11: did not acknowledge authentication response' The DMA busy watchdog can help the driver automatically recover from this abnormal state. By the way, setting higer 'cell_density' and disabling 'disassoc_low_ack' can significantly reduce the probability of the DMA busy. Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2023-10-25 12:09:23 +00:00
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/TYAP286MB031571CDB146C414A908A66DBCFEA@TYAP286MB0315.JPNP286.PROD.OUTLOOK.COM
mac80211: rt2x00: fix MT7620 low RSSI issue Introducing SoC specific RSSI base value to fix the low RSSI issue on MT7620. With this fix[1], the RSSI value reported by MT7620 will increase by 10 dB. [1] https://lore.kernel.org/linux-wireless/TYAP286MB031571CDB146C414A908A66DBCFEA@TYAP286MB0315.JPNP286.PROD.OUTLOOK.COM/ Fixes: https://github.com/openwrt/openwrt/issues/11036 Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2023-09-23 01:25:15 +00:00
---
drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
mac80211: sync some rt2x00 patches with wireless-next Some local patches have been sent to upstream and they are slightly different from the upstream version. So it's better to replace them to avoid conflicts with the new mac80211 backport driver. The different parts have been merged into patch 996. This commit also includes some additional fixes: * Fix watchdog function. * Improve MT7620 register initialization. * Introduce DMA busy watchdog for rt2800. P.S. Sometimes rt2800 series chips may fall into a DMA busy state. The tx queues become very slow and the client cannot connect to the AP. Usually, We can see a lot of hostapd warnings at this point: 'hostapd: IEEE 802.11: did not acknowledge authentication response' The DMA busy watchdog can help the driver automatically recover from this abnormal state. By the way, setting higer 'cell_density' and disabling 'disassoc_low_ack' can significantly reduce the probability of the DMA busy. Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2023-10-25 12:09:23 +00:00
@@ -856,6 +856,7 @@ static int rt2800_agc_to_rssi(struct rt2
mac80211: rt2x00: fix MT7620 low RSSI issue Introducing SoC specific RSSI base value to fix the low RSSI issue on MT7620. With this fix[1], the RSSI value reported by MT7620 will increase by 10 dB. [1] https://lore.kernel.org/linux-wireless/TYAP286MB031571CDB146C414A908A66DBCFEA@TYAP286MB0315.JPNP286.PROD.OUTLOOK.COM/ Fixes: https://github.com/openwrt/openwrt/issues/11036 Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2023-09-23 01:25:15 +00:00
s8 rssi0 = rt2x00_get_field32(rxwi_w2, RXWI_W2_RSSI0);
s8 rssi1 = rt2x00_get_field32(rxwi_w2, RXWI_W2_RSSI1);
s8 rssi2 = rt2x00_get_field32(rxwi_w2, RXWI_W2_RSSI2);
+ s8 base_val = rt2x00_rt(rt2x00dev, RT6352) ? -2 : -12;
u16 eeprom;
u8 offset0;
u8 offset1;
mac80211: sync some rt2x00 patches with wireless-next Some local patches have been sent to upstream and they are slightly different from the upstream version. So it's better to replace them to avoid conflicts with the new mac80211 backport driver. The different parts have been merged into patch 996. This commit also includes some additional fixes: * Fix watchdog function. * Improve MT7620 register initialization. * Introduce DMA busy watchdog for rt2800. P.S. Sometimes rt2800 series chips may fall into a DMA busy state. The tx queues become very slow and the client cannot connect to the AP. Usually, We can see a lot of hostapd warnings at this point: 'hostapd: IEEE 802.11: did not acknowledge authentication response' The DMA busy watchdog can help the driver automatically recover from this abnormal state. By the way, setting higer 'cell_density' and disabling 'disassoc_low_ack' can significantly reduce the probability of the DMA busy. Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2023-10-25 12:09:23 +00:00
@@ -880,9 +881,9 @@ static int rt2800_agc_to_rssi(struct rt2
mac80211: rt2x00: fix MT7620 low RSSI issue Introducing SoC specific RSSI base value to fix the low RSSI issue on MT7620. With this fix[1], the RSSI value reported by MT7620 will increase by 10 dB. [1] https://lore.kernel.org/linux-wireless/TYAP286MB031571CDB146C414A908A66DBCFEA@TYAP286MB0315.JPNP286.PROD.OUTLOOK.COM/ Fixes: https://github.com/openwrt/openwrt/issues/11036 Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2023-09-23 01:25:15 +00:00
* If the value in the descriptor is 0, it is considered invalid
* and the default (extremely low) rssi value is assumed
*/
- rssi0 = (rssi0) ? (-12 - offset0 - rt2x00dev->lna_gain - rssi0) : -128;
- rssi1 = (rssi1) ? (-12 - offset1 - rt2x00dev->lna_gain - rssi1) : -128;
- rssi2 = (rssi2) ? (-12 - offset2 - rt2x00dev->lna_gain - rssi2) : -128;
+ rssi0 = (rssi0) ? (base_val - offset0 - rt2x00dev->lna_gain - rssi0) : -128;
+ rssi1 = (rssi1) ? (base_val - offset1 - rt2x00dev->lna_gain - rssi1) : -128;
+ rssi2 = (rssi2) ? (base_val - offset2 - rt2x00dev->lna_gain - rssi2) : -128;
/*
* mac80211 only accepts a single RSSI value. Calculating the
Reference in New Issue Copy Permalink