wifi: rtw89: refine bandwidth 160MHz uplink OFDMA performance

This improves 160MHz performance degradation with certain APs.
Some ICs transmit preamble that are hard to decode by others, continuous
retries then yield low throughput. Fix it with pre-calculated antenna
matrices.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230929004024.7504-3-pkshih@realtek.com

drivers/net/wireless/realtek/rtw89/core.c

@@ -1689,8 +1689,8 @@ static void rtw89_stats_trigger_frame(struct rtw89_dev *rtwdev,
 {
 	struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv;
 	struct ieee80211_trigger *tf = (struct ieee80211_trigger *)skb->data;
-	u8 *pos, *end, type;
-	u16 aid;
+	u8 *pos, *end, type, tf_bw;
+	u16 aid, tf_rua;
 
 	if (!ether_addr_equal(vif->bss_conf.bssid, tf->ta) ||
 	    rtwvif->wifi_role != RTW89_WIFI_ROLE_STATION ||
@@ -1698,7 +1698,7 @@ static void rtw89_stats_trigger_frame(struct rtw89_dev *rtwdev,
 		return;
 
 	type = le64_get_bits(tf->common_info, IEEE80211_TRIGGER_TYPE_MASK);
-	if (type != IEEE80211_TRIGGER_TYPE_BASIC)
+	if (type != IEEE80211_TRIGGER_TYPE_BASIC && type != IEEE80211_TRIGGER_TYPE_MU_BAR)
 		return;
 
 	end = (u8 *)tf + skb->len;
@@ -1706,17 +1706,24 @@ static void rtw89_stats_trigger_frame(struct rtw89_dev *rtwdev,
 
 	while (end - pos >= RTW89_TF_BASIC_USER_INFO_SZ) {
 		aid = RTW89_GET_TF_USER_INFO_AID12(pos);
+		tf_rua = RTW89_GET_TF_USER_INFO_RUA(pos);
+		tf_bw = le64_get_bits(tf->common_info, IEEE80211_TRIGGER_ULBW_MASK);
 		rtw89_debug(rtwdev, RTW89_DBG_TXRX,
-			    "[TF] aid: %d, ul_mcs: %d, rua: %d\n",
+			    "[TF] aid: %d, ul_mcs: %d, rua: %d, bw: %d\n",
 			    aid, RTW89_GET_TF_USER_INFO_UL_MCS(pos),
-			    RTW89_GET_TF_USER_INFO_RUA(pos));
+			    tf_rua, tf_bw);
 
 		if (aid == RTW89_TF_PAD)
 			break;
 
 		if (aid == vif->cfg.aid) {
+			enum nl80211_he_ru_alloc rua = rtw89_he_rua_to_ru_alloc(tf_rua >> 1);
+
 			rtwvif->stats.rx_tf_acc++;
 			rtwdev->stats.rx_tf_acc++;
+			if (tf_bw == IEEE80211_TRIGGER_ULBW_160_80P80MHZ &&
+			    rua <= NL80211_RATE_INFO_HE_RU_ALLOC_106)
+				rtwvif->pwr_diff_en = true;
 			break;
 		}
 

drivers/net/wireless/realtek/rtw89/core.h

@@ -3045,6 +3045,8 @@ struct rtw89_vif {
 	bool is_hesta;
 	bool last_a_ctrl;
 	bool dyn_tb_bedge_en;
+	bool pre_pwr_diff_en;
+	bool pwr_diff_en;
 	u8 def_tri_idx;
 	u32 tdls_peer;
 	struct work_struct update_beacon_work;
@@ -3650,6 +3652,7 @@ struct rtw89_chip_info {
 	bool support_bw160;
 	bool support_unii4;
 	bool ul_tb_waveform_ctrl;
+	bool ul_tb_pwr_diff;
 	bool hw_sec_hdr;
 	u8 rf_path_num;
 	u8 tx_nss;
@@ -5206,6 +5209,30 @@ enum rtw89_bandwidth nl_to_rtw89_bandwidth(enum nl80211_chan_width width)
 	}
 }
 
+static inline
+enum nl80211_he_ru_alloc rtw89_he_rua_to_ru_alloc(u16 rua)
+{
+	switch (rua) {
+	default:
+		WARN(1, "Invalid RU allocation: %d\n", rua);
+		fallthrough;
+	case 0 ... 36:
+		return NL80211_RATE_INFO_HE_RU_ALLOC_26;
+	case 37 ... 52:
+		return NL80211_RATE_INFO_HE_RU_ALLOC_52;
+	case 53 ... 60:
+		return NL80211_RATE_INFO_HE_RU_ALLOC_106;
+	case 61 ... 64:
+		return NL80211_RATE_INFO_HE_RU_ALLOC_242;
+	case 65 ... 66:
+		return NL80211_RATE_INFO_HE_RU_ALLOC_484;
+	case 67:
+		return NL80211_RATE_INFO_HE_RU_ALLOC_996;
+	case 68:
+		return NL80211_RATE_INFO_HE_RU_ALLOC_2x996;
+	}
+}
+
 static inline
 struct rtw89_addr_cam_entry *rtw89_get_addr_cam_of(struct rtw89_vif *rtwvif,
 						   struct rtw89_sta *rtwsta)

drivers/net/wireless/realtek/rtw89/phy.c

@@ -2934,6 +2934,61 @@ struct rtw89_phy_ul_tb_check_data {
 	u8 def_tri_idx;
 };
 
+struct rtw89_phy_power_diff {
+	u32 q_00;
+	u32 q_11;
+	u32 q_matrix_en;
+	u32 ultb_1t_norm_160;
+	u32 ultb_2t_norm_160;
+	u32 com1_norm_1sts;
+	u32 com2_resp_1sts_path;
+};
+
+static void rtw89_phy_ofdma_power_diff(struct rtw89_dev *rtwdev,
+				       struct rtw89_vif *rtwvif)
+{
+	static const struct rtw89_phy_power_diff table[2] = {
+		{0x0, 0x0, 0x0, 0x0, 0xf4, 0x3, 0x3},
+		{0xb50, 0xb50, 0x1, 0xc, 0x0, 0x1, 0x1},
+	};
+	const struct rtw89_phy_power_diff *param;
+	u32 reg;
+
+	if (!rtwdev->chip->ul_tb_pwr_diff)
+		return;
+
+	if (rtwvif->pwr_diff_en == rtwvif->pre_pwr_diff_en) {
+		rtwvif->pwr_diff_en = false;
+		return;
+	}
+
+	rtwvif->pre_pwr_diff_en = rtwvif->pwr_diff_en;
+	param = &table[rtwvif->pwr_diff_en];
+
+	rtw89_phy_write32_mask(rtwdev, R_Q_MATRIX_00, B_Q_MATRIX_00_REAL,
+			       param->q_00);
+	rtw89_phy_write32_mask(rtwdev, R_Q_MATRIX_11, B_Q_MATRIX_11_REAL,
+			       param->q_11);
+	rtw89_phy_write32_mask(rtwdev, R_CUSTOMIZE_Q_MATRIX,
+			       B_CUSTOMIZE_Q_MATRIX_EN, param->q_matrix_en);
+
+	reg = rtw89_mac_reg_by_idx(rtwdev, R_AX_PWR_UL_TB_1T, rtwvif->mac_idx);
+	rtw89_write32_mask(rtwdev, reg, B_AX_PWR_UL_TB_1T_NORM_BW160,
+			   param->ultb_1t_norm_160);
+
+	reg = rtw89_mac_reg_by_idx(rtwdev, R_AX_PWR_UL_TB_2T, rtwvif->mac_idx);
+	rtw89_write32_mask(rtwdev, reg, B_AX_PWR_UL_TB_2T_NORM_BW160,
+			   param->ultb_2t_norm_160);
+
+	reg = rtw89_mac_reg_by_idx(rtwdev, R_AX_PATH_COM1, rtwvif->mac_idx);
+	rtw89_write32_mask(rtwdev, reg, B_AX_PATH_COM1_NORM_1STS,
+			   param->com1_norm_1sts);
+
+	reg = rtw89_mac_reg_by_idx(rtwdev, R_AX_PATH_COM2, rtwvif->mac_idx);
+	rtw89_write32_mask(rtwdev, reg, B_AX_PATH_COM2_RESP_1STS_PATH,
+			   param->com2_resp_1sts_path);
+}
+
 static
 void rtw89_phy_ul_tb_ctrl_check(struct rtw89_dev *rtwdev,
 				struct rtw89_vif *rtwvif,
@@ -2958,6 +3013,8 @@ void rtw89_phy_ul_tb_ctrl_check(struct rtw89_dev *rtwdev,
 		ul_tb_data->def_tri_idx = rtwvif->def_tri_idx;
 		ul_tb_data->dyn_tb_bedge_en = rtwvif->dyn_tb_bedge_en;
 	}
+
+	rtw89_phy_ofdma_power_diff(rtwdev, rtwvif);
 }
 
 static void rtw89_phy_ul_tb_waveform_ctrl(struct rtw89_dev *rtwdev,
@@ -3005,7 +3062,7 @@ void rtw89_phy_ul_tb_ctrl_track(struct rtw89_dev *rtwdev)
 	struct rtw89_phy_ul_tb_check_data ul_tb_data = {};
 	struct rtw89_vif *rtwvif;
 
-	if (!chip->ul_tb_waveform_ctrl)
+	if (!chip->ul_tb_waveform_ctrl && !chip->ul_tb_pwr_diff)
 		return;
 
 	if (rtwdev->total_sta_assoc != 1)

drivers/net/wireless/realtek/rtw89/reg.h

@@ -3360,9 +3360,11 @@
 #define R_AX_PWR_UL_TB_1T 0xD28C
 #define B_AX_PWR_UL_TB_1T_MASK GENMASK(4, 0)
 #define B_AX_PWR_UL_TB_1T_V1_MASK GENMASK(7, 0)
+#define B_AX_PWR_UL_TB_1T_NORM_BW160 GENMASK(31, 24)
 #define R_AX_PWR_UL_TB_2T 0xD290
 #define B_AX_PWR_UL_TB_2T_MASK GENMASK(4, 0)
 #define B_AX_PWR_UL_TB_2T_V1_MASK GENMASK(7, 0)
+#define B_AX_PWR_UL_TB_2T_NORM_BW160 GENMASK(31, 24)
 #define R_AX_PWR_BY_RATE_TABLE0 0xD2C0
 #define R_AX_PWR_BY_RATE_TABLE6 0xD2D8
 #define R_AX_PWR_BY_RATE_TABLE10 0xD2E8
@@ -3390,11 +3392,13 @@
 #define AX_PATH_COM0_PATHB 0x11111900
 #define AX_PATH_COM0_PATHAB 0x19999980
 #define R_AX_PATH_COM1 0xD804
+#define B_AX_PATH_COM1_NORM_1STS GENMASK(31, 28)
 #define AX_PATH_COM1_DFVAL 0x00000000
 #define AX_PATH_COM1_PATHA 0x13111111
 #define AX_PATH_COM1_PATHB 0x23222222
 #define AX_PATH_COM1_PATHAB 0x33333333
 #define R_AX_PATH_COM2 0xD808
+#define B_AX_PATH_COM2_RESP_1STS_PATH GENMASK(7, 4)
 #define AX_PATH_COM2_DFVAL 0x00000000
 #define AX_PATH_COM2_PATHA 0x01209313
 #define AX_PATH_COM2_PATHB 0x01209323
@@ -4669,12 +4673,20 @@
 #define B_ANT_RX_1RCCA_SEG1 GENMASK(21, 18)
 #define B_ANT_RX_1RCCA_SEG0 GENMASK(17, 14)
 #define B_FC0_BW_INV GENMASK(6, 0)
+#define R_Q_MATRIX_00 0x497C
+#define B_Q_MATRIX_00_IMAGINARY GENMASK(15, 0)
+#define B_Q_MATRIX_00_REAL GENMASK(31, 16)
 #define R_CHBW_MOD 0x4978
 #define R_CHBW_MOD_V1 0x49C4
 #define B_BT_SHARE BIT(14)
 #define B_CHBW_MOD_SBW GENMASK(13, 12)
 #define B_CHBW_MOD_PRICH GENMASK(11, 8)
 #define B_ANT_RX_SEG0 GENMASK(3, 0)
+#define R_Q_MATRIX_11 0x4988
+#define B_Q_MATRIX_11_IMAGINARY GENMASK(15, 0)
+#define B_Q_MATRIX_11_REAL GENMASK(31, 16)
+#define R_CUSTOMIZE_Q_MATRIX 0x498C
+#define B_CUSTOMIZE_Q_MATRIX_EN BIT(0)
 #define R_P0_RPL1 0x49B0
 #define B_P0_RPL1_41_MASK GENMASK(31, 24)
 #define B_P0_RPL1_40_MASK GENMASK(23, 16)

drivers/net/wireless/realtek/rtw89/rtw8851b.c

@@ -2380,6 +2380,7 @@ const struct rtw89_chip_info rtw8851b_chip_info = {
 	.support_bw160		= false,
 	.support_unii4		= true,
 	.ul_tb_waveform_ctrl	= true,
+	.ul_tb_pwr_diff		= false,
 	.hw_sec_hdr		= false,
 	.rf_path_num		= 1,
 	.tx_nss			= 1,

drivers/net/wireless/realtek/rtw89/rtw8852a.c

@@ -2116,6 +2116,7 @@ const struct rtw89_chip_info rtw8852a_chip_info = {
 	.support_bw160		= false,
 	.support_unii4		= false,
 	.ul_tb_waveform_ctrl	= false,
+	.ul_tb_pwr_diff		= false,
 	.hw_sec_hdr		= false,
 	.rf_path_num		= 2,
 	.tx_nss			= 2,

drivers/net/wireless/realtek/rtw89/rtw8852b.c

@@ -2550,6 +2550,7 @@ const struct rtw89_chip_info rtw8852b_chip_info = {
 	.support_bw160		= false,
 	.support_unii4		= true,
 	.ul_tb_waveform_ctrl	= true,
+	.ul_tb_pwr_diff		= false,
 	.hw_sec_hdr		= false,
 	.rf_path_num		= 2,
 	.tx_nss			= 2,

drivers/net/wireless/realtek/rtw89/rtw8852c.c

@@ -2860,6 +2860,7 @@ const struct rtw89_chip_info rtw8852c_chip_info = {
 	.support_bw160		= true,
 	.support_unii4		= true,
 	.ul_tb_waveform_ctrl	= false,
+	.ul_tb_pwr_diff		= true,
 	.hw_sec_hdr		= true,
 	.rf_path_num		= 2,
 	.tx_nss			= 2,