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From:   Ping-Ke Shih <pkshih@realtek.com>
To:     <kvalo@kernel.org>
CC:     <linux-wireless@vger.kernel.org>
Subject: [PATCH] wifi: rtw89: consider ER SU as a TX capability
Date:   Fri, 9 Dec 2022 09:21:10 +0800
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ER (Extended Range) SU is to have a larger coverage. We set this as a RA
capability, and then firmware can choose ER SU to transmit packets to
reception at cell edge. For 8852C, it needs to fill this capability in
TXWD, so update rtw89_build_txwd_info0_v1().

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/core.c | 13 ++++++++++++-
 drivers/net/wireless/realtek/rtw89/core.h |  2 ++
 drivers/net/wireless/realtek/rtw89/phy.c  |  1 +
 drivers/net/wireless/realtek/rtw89/txrx.h |  2 ++
 4 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index 931aff8b5dc95..adc961752a291 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -689,7 +689,9 @@ rtw89_core_tx_update_data_info(struct rtw89_dev *rtwdev,
 			       struct rtw89_core_tx_request *tx_req)
 {
 	struct ieee80211_vif *vif = tx_req->vif;
+	struct ieee80211_sta *sta = tx_req->sta;
 	struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv;
+	struct rtw89_sta *rtwsta = sta_to_rtwsta_safe(sta);
 	struct rtw89_phy_rate_pattern *rate_pattern = &rtwvif->rate_pattern;
 	const struct rtw89_chan *chan = rtw89_chan_get(rtwdev, RTW89_SUB_ENTITY_0);
 	struct rtw89_tx_desc_info *desc_info = &tx_req->desc_info;
@@ -707,6 +709,7 @@ rtw89_core_tx_update_data_info(struct rtw89_dev *rtwdev,
 	desc_info->qsel = qsel;
 	desc_info->mac_id = rtw89_core_tx_get_mac_id(rtwdev, tx_req);
 	desc_info->port = desc_info->hiq ? rtwvif->port : 0;
+	desc_info->er_cap = rtwsta ? rtwsta->er_cap : false;
 
 	/* enable wd_info for AMPDU */
 	desc_info->en_wd_info = true;
@@ -1006,7 +1009,9 @@ static __le32 rtw89_build_txwd_info0(struct rtw89_tx_desc_info *desc_info)
 static __le32 rtw89_build_txwd_info0_v1(struct rtw89_tx_desc_info *desc_info)
 {
 	u32 dword = FIELD_PREP(RTW89_TXWD_INFO0_DISDATAFB, desc_info->dis_data_fb) |
-		    FIELD_PREP(RTW89_TXWD_INFO0_MULTIPORT_ID, desc_info->port);
+		    FIELD_PREP(RTW89_TXWD_INFO0_MULTIPORT_ID, desc_info->port) |
+		    FIELD_PREP(RTW89_TXWD_INFO0_DATA_ER, desc_info->er_cap) |
+		    FIELD_PREP(RTW89_TXWD_INFO0_DATA_BW_ER, 0);
 
 	return cpu_to_le32(dword);
 }
@@ -2585,6 +2590,12 @@ int rtw89_core_sta_assoc(struct rtw89_dev *rtwdev,
 	rtw89_mac_bf_monitor_calc(rtwdev, sta, false);
 
 	if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) {
+		struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+
+		if (bss_conf->he_support &&
+		    !(bss_conf->he_oper.params & IEEE80211_HE_OPERATION_ER_SU_DISABLE))
+			rtwsta->er_cap = true;
+
 		rtw89_btc_ntfy_role_info(rtwdev, rtwvif, rtwsta,
 					 BTC_ROLE_MSTS_STA_CONN_END);
 		rtw89_core_get_no_ul_ofdma_htc(rtwdev, &rtwsta->htc_template);
diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index 2badb96d2ae35..800ede1d69c75 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -816,6 +816,7 @@ struct rtw89_tx_desc_info {
 #define RTW89_MGMT_HW_SEQ_MODE	1
 	bool hiq;
 	u8 port;
+	bool er_cap;
 };
 
 struct rtw89_core_tx_request {
@@ -2194,6 +2195,7 @@ struct rtw89_sec_cam_entry {
 struct rtw89_sta {
 	u8 mac_id;
 	bool disassoc;
+	bool er_cap;
 	struct rtw89_dev *rtwdev;
 	struct rtw89_vif *rtwvif;
 	struct rtw89_ra_info ra;
diff --git a/drivers/net/wireless/realtek/rtw89/phy.c b/drivers/net/wireless/realtek/rtw89/phy.c
index 017710c580c72..5dc617a0a47a7 100644
--- a/drivers/net/wireless/realtek/rtw89/phy.c
+++ b/drivers/net/wireless/realtek/rtw89/phy.c
@@ -367,6 +367,7 @@ static void rtw89_phy_ra_sta_update(struct rtw89_dev *rtwdev,
 	}
 
 	ra->bw_cap = bw_mode;
+	ra->er_cap = rtwsta->er_cap;
 	ra->mode_ctrl = mode;
 	ra->macid = rtwsta->mac_id;
 	ra->stbc_cap = stbc_en;
diff --git a/drivers/net/wireless/realtek/rtw89/txrx.h b/drivers/net/wireless/realtek/rtw89/txrx.h
index 9d4c6b6fa1250..98eb9607cd218 100644
--- a/drivers/net/wireless/realtek/rtw89/txrx.h
+++ b/drivers/net/wireless/realtek/rtw89/txrx.h
@@ -75,7 +75,9 @@
 #define RTW89_TXWD_INFO0_DATA_BW GENMASK(29, 28)
 #define RTW89_TXWD_INFO0_GI_LTF GENMASK(27, 25)
 #define RTW89_TXWD_INFO0_DATA_RATE GENMASK(24, 16)
+#define RTW89_TXWD_INFO0_DATA_ER BIT(15)
 #define RTW89_TXWD_INFO0_DISDATAFB BIT(10)
+#define RTW89_TXWD_INFO0_DATA_BW_ER BIT(8)
 #define RTW89_TXWD_INFO0_MULTIPORT_ID GENMASK(6, 4)
 
 /* TX WD INFO DWORD 1 */
-- 
2.25.1