mt76: connac: add 6GHz support to mt76_connac_mcu_sta_tlv

Introduce sta_rec_he_6g_capa tlv in order configure the mcu with 6GHz
capabilities. This is a preliminary patch to enable 6GHz band for
mt7921 devices.
Tested-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c

@@ -770,8 +770,18 @@ void mt76_connac_mcu_sta_tlv(struct mt76_phy *mphy, struct sk_buff *skb,
 		mt76_connac_mcu_sta_amsdu_tlv(skb, sta, vif);
 
 	/* starec he */
-	if (sta->he_cap.has_he)
+	if (sta->he_cap.has_he) {
 		mt76_connac_mcu_sta_he_tlv(skb, sta);
+		if (band == NL80211_BAND_6GHZ &&
+		    sta_state == MT76_STA_INFO_STATE_ASSOC) {
+			struct sta_rec_he_6g_capa *he_6g_capa;
+
+			tlv = mt76_connac_mcu_add_tlv(skb, STA_REC_HE_6G,
+						      sizeof(*he_6g_capa));
+			he_6g_capa = (struct sta_rec_he_6g_capa *)tlv;
+			he_6g_capa->capa = sta->he_6ghz_capa.capa;
+		}
+	}
 
 	tlv = mt76_connac_mcu_add_tlv(skb, STA_REC_PHY, sizeof(*phy));
 	phy = (struct sta_rec_phy *)tlv;

drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h

@@ -145,6 +145,13 @@ struct sta_rec_phy {
 	u8 rsv[2];
 } __packed;
 
+struct sta_rec_he_6g_capa {
+	__le16 tag;
+	__le16 len;
+	__le16 capa;
+	u8 rsv[2];
+} __packed;
+
 /* wtbl_rec */
 
 struct wtbl_req_hdr {
@@ -303,6 +310,7 @@ struct wtbl_raw {
 					 sizeof(struct sta_rec_vht) +	\
 					 sizeof(struct sta_rec_uapsd) + \
 					 sizeof(struct sta_rec_amsdu) +	\
+					 sizeof(struct sta_rec_he_6g_capa) + \
 					 sizeof(struct tlv) +		\
 					 MT76_CONNAC_WTBL_UPDATE_MAX_SIZE)
 
@@ -329,6 +337,7 @@ enum {
 	STA_REC_MUEDCA,
 	STA_REC_BFEE,
 	STA_REC_PHY = 0x15,
+	STA_REC_HE_6G = 0x17,
 	STA_REC_MAX_NUM
 };