wifi: mt76: mt7925: Cleanup MLO settings post-disconnection

Clean up MLO settings after disconnection.

Fixes: 86c051f ("wifi: mt76: mt7925: enabling MLO when the firmware supports it")
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/20241211011926.5002-16-sean.wang@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7925/main.c

@@ -1149,8 +1149,7 @@ static void mt7925_mac_link_sta_remove(struct mt76_dev *mdev,
 		struct mt792x_bss_conf *mconf;
 
 		mconf = mt792x_link_conf_to_mconf(link_conf);
-		mt7925_mcu_add_bss_info(&dev->phy, mconf->mt76.ctx, link_conf,
-					link_sta, false);
+		mt792x_mac_link_bss_remove(dev, mconf, mlink);
 	}
 
 	spin_lock_bh(&mdev->sta_poll_lock);
@@ -1208,12 +1207,46 @@ void mt7925_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 {
 	struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
 	struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
+	struct {
+		struct {
+			u8 omac_idx;
+			u8 band_idx;
+			__le16 pad;
+		} __packed hdr;
+		struct req_tlv {
+			__le16 tag;
+			__le16 len;
+			u8 active;
+			u8 link_idx; /* hw link idx */
+			u8 omac_addr[ETH_ALEN];
+		} __packed tlv;
+	} dev_req = {
+		.hdr = {
+			.omac_idx = 0,
+			.band_idx = 0,
+		},
+		.tlv = {
+			.tag = cpu_to_le16(DEV_INFO_ACTIVE),
+			.len = cpu_to_le16(sizeof(struct req_tlv)),
+			.active = true,
+		},
+	};
 	unsigned long rem;
 
 	rem = ieee80211_vif_is_mld(vif) ? msta->valid_links : BIT(0);
 
 	mt7925_mac_sta_remove_links(dev, vif, sta, rem);
 
+	if (ieee80211_vif_is_mld(vif)) {
+		mt7925_mcu_set_dbdc(&dev->mphy, false);
+
+		/* recovery omac address for the legacy interface */
+		memcpy(dev_req.tlv.omac_addr, vif->addr, ETH_ALEN);
+		mt76_mcu_send_msg(mdev, MCU_UNI_CMD(DEV_INFO_UPDATE),
+				  &dev_req, sizeof(dev_req), true);
+
+	}
+
 	if (vif->type == NL80211_IFTYPE_STATION) {
 		struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
 

drivers/net/wireless/mediatek/mt76/mt7925/mcu.c

@@ -2660,7 +2660,7 @@ int mt7925_mcu_add_bss_info(struct mt792x_phy *phy,
 				     MCU_UNI_CMD(BSS_INFO_UPDATE), true);
 }
 
-int mt7925_mcu_set_dbdc(struct mt76_phy *phy)
+int mt7925_mcu_set_dbdc(struct mt76_phy *phy, bool enable)
 {
 	struct mt76_dev *mdev = phy->dev;
 
@@ -2680,7 +2680,7 @@ int mt7925_mcu_set_dbdc(struct mt76_phy *phy)
 	tlv = mt76_connac_mcu_add_tlv(skb, UNI_MBMC_SETTING, sizeof(*conf));
 	conf = (struct mbmc_conf_tlv *)tlv;
 
-	conf->mbmc_en = 1;
+	conf->mbmc_en = enable;
 	conf->band = 0; /* unused */
 
 	err = mt76_mcu_skb_send_msg(mdev, skb, MCU_UNI_CMD(SET_DBDC_PARMS),

drivers/net/wireless/mediatek/mt76/mt7925/mcu.h

@@ -616,7 +616,7 @@ mt7925_mcu_get_cipher(int cipher)
 	}
 }
 
-int mt7925_mcu_set_dbdc(struct mt76_phy *phy);
+int mt7925_mcu_set_dbdc(struct mt76_phy *phy, bool enable);
 int mt7925_mcu_hw_scan(struct mt76_phy *phy, struct ieee80211_vif *vif,
 		       struct ieee80211_scan_request *scan_req);
 int mt7925_mcu_cancel_hw_scan(struct mt76_phy *phy,