wifi: mt76: mt792x: extend mt76_connac_mcu_uni_add_dev for per-link BSS

Extend mt76_connac_mcu_uni_add_dev with per-link BSS configuration.

The patch we created is a prerequisite to enable the MLO function in the
driver. It is purely a refactoring patch so the functionality should
remain unchanged.

We also extend link_idx field in mt76_connac_bss_basic_tlv for the firmware
to able to identify the link index in the MLO mode that is not harmful
for the current non-MLO mode.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/20240613030241.5771-6-sean.wang@kernel.orgSigned-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7615/mcu.c

@@ -1109,8 +1109,8 @@ mt7615_mcu_uni_add_dev(struct mt7615_phy *phy, struct ieee80211_vif *vif,
 {
 	struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv;
 
-	return mt76_connac_mcu_uni_add_dev(phy->mt76, vif, &mvif->sta.wcid,
-					   enable);
+	return mt76_connac_mcu_uni_add_dev(phy->mt76, &vif->bss_conf,
+					   &mvif->sta.wcid, enable);
 }
 
 static int

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

@@ -1132,11 +1132,11 @@ void mt76_connac_mcu_wtbl_ba_tlv(struct mt76_dev *dev, struct sk_buff *skb,
 EXPORT_SYMBOL_GPL(mt76_connac_mcu_wtbl_ba_tlv);
 
 int mt76_connac_mcu_uni_add_dev(struct mt76_phy *phy,
-				struct ieee80211_vif *vif,
+				struct ieee80211_bss_conf *bss_conf,
 				struct mt76_wcid *wcid,
 				bool enable)
 {
-	struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
+	struct mt76_vif *mvif = (struct mt76_vif *)bss_conf->vif->drv_priv;
 	struct mt76_dev *dev = phy->dev;
 	struct {
 		struct {
@@ -1148,7 +1148,7 @@ int mt76_connac_mcu_uni_add_dev(struct mt76_phy *phy,
 			__le16 tag;
 			__le16 len;
 			u8 active;
-			u8 pad;
+			u8 link_idx; /* not link_id */
 			u8 omac_addr[ETH_ALEN];
 		} __packed tlv;
 	} dev_req = {
@@ -1160,6 +1160,7 @@ int mt76_connac_mcu_uni_add_dev(struct mt76_phy *phy,
 			.tag = cpu_to_le16(DEV_INFO_ACTIVE),
 			.len = cpu_to_le16(sizeof(struct req_tlv)),
 			.active = enable,
+			.link_idx = mvif->idx,
 		},
 	};
 	struct {
@@ -1182,12 +1183,13 @@ int mt76_connac_mcu_uni_add_dev(struct mt76_phy *phy,
 			.bmc_tx_wlan_idx = cpu_to_le16(wcid->idx),
 			.sta_idx = cpu_to_le16(wcid->idx),
 			.conn_state = 1,
+			.link_idx = mvif->idx,
 		},
 	};
 	int err, idx, cmd, len;
 	void *data;
 
-	switch (vif->type) {
+	switch (bss_conf->vif->type) {
 	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_MONITOR:
 	case NL80211_IFTYPE_AP:
@@ -1207,7 +1209,7 @@ int mt76_connac_mcu_uni_add_dev(struct mt76_phy *phy,
 	idx = mvif->omac_idx > EXT_BSSID_START ? HW_BSSID_0 : mvif->omac_idx;
 	basic_req.basic.hw_bss_idx = idx;
 
-	memcpy(dev_req.tlv.omac_addr, vif->addr, ETH_ALEN);
+	memcpy(dev_req.tlv.omac_addr, bss_conf->vif->addr, ETH_ALEN);
 
 	cmd = enable ? MCU_UNI_CMD(DEV_INFO_UPDATE) : MCU_UNI_CMD(BSS_INFO_UPDATE);
 	data = enable ? (void *)&dev_req : (void *)&basic_req;

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

@@ -1443,7 +1443,7 @@ struct mt76_connac_bss_basic_tlv {
 	__le16 sta_idx;
 	__le16 nonht_basic_phy;
 	u8 phymode_ext; /* bit(0) AX_6G */
-	u8 pad[1];
+	u8 link_idx;
 } __packed;
 
 struct mt76_connac_bss_qos_tlv {
@@ -1917,7 +1917,7 @@ void mt76_connac_mcu_sta_ba_tlv(struct sk_buff *skb,
 				struct ieee80211_ampdu_params *params,
 				bool enable, bool tx);
 int mt76_connac_mcu_uni_add_dev(struct mt76_phy *phy,
-				struct ieee80211_vif *vif,
+				struct ieee80211_bss_conf *bss_conf,
 				struct mt76_wcid *wcid,
 				bool enable);
 int mt76_connac_mcu_sta_ba(struct mt76_dev *dev, struct mt76_vif *mvif,

drivers/net/wireless/mediatek/mt76/mt7921/mac.c

@@ -646,7 +646,8 @@ mt7921_vif_connect_iter(void *priv, u8 *mac,
 	if (vif->type == NL80211_IFTYPE_STATION)
 		ieee80211_disconnect(vif, true);
 
-	mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.deflink.wcid, true);
+	mt76_connac_mcu_uni_add_dev(&dev->mphy, &vif->bss_conf,
+				    &mvif->sta.deflink.wcid, true);
 	mt7921_mcu_set_tx(dev, vif);
 
 	if (vif->type == NL80211_IFTYPE_AP) {

drivers/net/wireless/mediatek/mt76/mt7921/main.c

@@ -306,8 +306,8 @@ mt7921_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	mvif->bss_conf.mt76.band_idx = 0;
 	mvif->bss_conf.mt76.wmm_idx = mvif->bss_conf.mt76.idx % MT76_CONNAC_MAX_WMM_SETS;
 
-	ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.deflink.wcid,
-					  true);
+	ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, &vif->bss_conf,
+					  &mvif->sta.deflink.wcid, true);
 	if (ret)
 		goto out;
 

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

@@ -1243,7 +1243,8 @@ mt7925_vif_connect_iter(void *priv, u8 *mac,
 	if (vif->type == NL80211_IFTYPE_STATION)
 		ieee80211_disconnect(vif, true);
 
-	mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.deflink.wcid, true);
+	mt76_connac_mcu_uni_add_dev(&dev->mphy, &vif->bss_conf,
+				    &mvif->sta.deflink.wcid, true);
 	mt7925_mcu_set_tx(dev, vif);
 
 	if (vif->type == NL80211_IFTYPE_AP) {

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

@@ -344,8 +344,8 @@ mt7925_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	else
 		mvif->bss_conf.mt76.basic_rates_idx = MT792x_BASIC_RATES_TBL;
 
-	ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.deflink.wcid,
-					  true);
+	ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, &vif->bss_conf,
+					  &mvif->sta.deflink.wcid, true);
 	if (ret)
 		goto out;
 

drivers/net/wireless/mediatek/mt76/mt792x_core.c

@@ -124,7 +124,7 @@ void mt792x_remove_interface(struct ieee80211_hw *hw,
 
 	mt792x_mutex_acquire(dev);
 	mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->deflink.wcid);
-	mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.deflink.wcid, false);
+	mt76_connac_mcu_uni_add_dev(&dev->mphy, &vif->bss_conf, &mvif->sta.deflink.wcid, false);
 
 	rcu_assign_pointer(dev->mt76.wcid[idx], NULL);