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wifi: rtw89: set force HE TB mode when connecting to 11ax AP

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Some of 11ax AP set the UL HE-SIG-A2 reserved subfield to all 0s, which
will cause the 11be chip to recognize trigger frame as EHT. We propose
a method to bypass the "UL HE-SIG-A2 reserved subfield" and always uses
HE TB in response to the AP's trigger frame.

Signed-off-by: Dian-Syuan Yang <dian_syuan0116@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250306021144.12854-6-pkshih@realtek.com
This commit is contained in:
Dian-Syuan Yang 2025-03-06 10:11:44 +08:00 committed by Ping-Ke Shih
parent 6f039d9ba9
commit a9b56f219a
4 changed files with 33 additions and 0 deletions
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26
drivers/net/wireless/realtek/rtw89/mac.c
View File

@ -4837,6 +4837,32 @@ void rtw89_mac_set_he_obss_narrow_bw_ru(struct rtw89_dev *rtwdev,
rtw89_write32_set(rtwdev, reg, mac->narrow_bw_ru_dis.mask);
}
void rtw89_mac_set_he_tb(struct rtw89_dev *rtwdev,
struct rtw89_vif_link *rtwvif_link)
{
struct ieee80211_bss_conf *bss_conf;
bool set;
u32 reg;
if (rtwdev->chip->chip_gen != RTW89_CHIP_BE)
return;
rcu_read_lock();
bss_conf = rtw89_vif_rcu_dereference_link(rtwvif_link, true);
set = bss_conf->he_support && !bss_conf->eht_support;
rcu_read_unlock();
reg = rtw89_mac_reg_by_idx(rtwdev, R_BE_CLIENT_OM_CTRL,
rtwvif_link->mac_idx);
if (set)
rtw89_write32_set(rtwdev, reg, B_BE_TRIG_DIS_EHTTB);
else
rtw89_write32_clr(rtwdev, reg, B_BE_TRIG_DIS_EHTTB);
}
void rtw89_mac_stop_ap(struct rtw89_dev *rtwdev, struct rtw89_vif_link *rtwvif_link)
{
rtw89_mac_port_cfg_func_sw(rtwdev, rtwvif_link);

2
drivers/net/wireless/realtek/rtw89/mac.h
View File

@ -1188,6 +1188,8 @@ void rtw89_mac_port_cfg_rx_sync(struct rtw89_dev *rtwdev,
struct rtw89_vif_link *rtwvif_link, bool en);
void rtw89_mac_set_he_obss_narrow_bw_ru(struct rtw89_dev *rtwdev,
struct rtw89_vif_link *rtwvif_link);
void rtw89_mac_set_he_tb(struct rtw89_dev *rtwdev,
struct rtw89_vif_link *rtwvif_link);
void rtw89_mac_stop_ap(struct rtw89_dev *rtwdev, struct rtw89_vif_link *rtwvif_link);
void rtw89_mac_enable_beacon_for_ap_vifs(struct rtw89_dev *rtwdev, bool en);
int rtw89_mac_remove_vif(struct rtw89_dev *rtwdev, struct rtw89_vif_link *vif);

1
drivers/net/wireless/realtek/rtw89/mac80211.c
View File

@ -656,6 +656,7 @@ static void __rtw89_ops_bss_link_assoc(struct rtw89_dev *rtwdev,
rtw89_chip_cfg_txpwr_ul_tb_offset(rtwdev, rtwvif_link);
rtw89_mac_port_update(rtwdev, rtwvif_link);
rtw89_mac_set_he_obss_narrow_bw_ru(rtwdev, rtwvif_link);
rtw89_mac_set_he_tb(rtwdev, rtwvif_link);
}
static void __rtw89_ops_bss_assoc(struct rtw89_dev *rtwdev,

4
drivers/net/wireless/realtek/rtw89/reg.h
View File

@ -7102,6 +7102,10 @@
#define B_BE_MACLBK_RDY_NUM_MASK GENMASK(7, 3)
#define B_BE_MACLBK_EN BIT(0)
#define R_BE_CLIENT_OM_CTRL 0x11040
#define R_BE_CLIENT_OM_CTRL_C1 0x15040
#define B_BE_TRIG_DIS_EHTTB BIT(24)
#define R_BE_WMAC_NAV_CTL 0x11080
#define R_BE_WMAC_NAV_CTL_C1 0x15080
#define B_BE_WMAC_NAV_UPPER_EN BIT(26)