wifi: mt76: mt792x: add struct mt792x_link_sta

We are introducing a new structure, mt792x_link_sta, to manage per-link
configurations in preparation for future station (STA) support of
Multi-Link Operation (MLO).

This patch only includes structural changes and does not involve any
logic changes.

We have moved relevant parameters, such as the wcid from the mt76_wcid
structure, from the mt7921x_sta structure to the mt792x_link_sta structure.

For current drivers that do not support MLO, there is only one link STA,
and link information is accessed via the deflink member.

However, we have not yet created the per-link BSS configuration indexed
by link ID for Multi-Link Device (MLD) support in mt7921x_sta.
This step needs to be completed before adding MLD support for STA mode.
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Link: https://patch.msgid.link/20240613030241.5771-3-sean.wang@kernel.orgSigned-off-by: Felix Fietkau <nbd@nbd.name>

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

@@ -39,6 +39,7 @@ static void mt7921_mac_sta_poll(struct mt792x_dev *dev)
 	};
 	struct ieee80211_sta *sta;
 	struct mt792x_sta *msta;
+	struct mt792x_link_sta *mlink;
 	u32 tx_time[IEEE80211_NUM_ACS], rx_time[IEEE80211_NUM_ACS];
 	LIST_HEAD(sta_poll_list);
 	struct rate_info *rate;
@@ -60,23 +61,25 @@ static void mt7921_mac_sta_poll(struct mt792x_dev *dev)
 			spin_unlock_bh(&dev->mt76.sta_poll_lock);
 			break;
 		}
-		msta = list_first_entry(&sta_poll_list,
-					struct mt792x_sta, wcid.poll_list);
-		list_del_init(&msta->wcid.poll_list);
+		mlink = list_first_entry(&sta_poll_list,
+					 struct mt792x_link_sta,
+					 wcid.poll_list);
+		msta = container_of(mlink, struct mt792x_sta, deflink);
+		list_del_init(&mlink->wcid.poll_list);
 		spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
-		idx = msta->wcid.idx;
+		idx = mlink->wcid.idx;
 		addr = mt7921_mac_wtbl_lmac_addr(idx, MT_WTBL_AC0_CTT_OFFSET);
 
 		for (i = 0; i < IEEE80211_NUM_ACS; i++) {
-			u32 tx_last = msta->airtime_ac[i];
-			u32 rx_last = msta->airtime_ac[i + 4];
+			u32 tx_last = mlink->airtime_ac[i];
+			u32 rx_last = mlink->airtime_ac[i + 4];
 
-			msta->airtime_ac[i] = mt76_rr(dev, addr);
-			msta->airtime_ac[i + 4] = mt76_rr(dev, addr + 4);
+			mlink->airtime_ac[i] = mt76_rr(dev, addr);
+			mlink->airtime_ac[i + 4] = mt76_rr(dev, addr + 4);
 
-			tx_time[i] = msta->airtime_ac[i] - tx_last;
-			rx_time[i] = msta->airtime_ac[i + 4] - rx_last;
+			tx_time[i] = mlink->airtime_ac[i] - tx_last;
+			rx_time[i] = mlink->airtime_ac[i + 4] - rx_last;
 
 			if ((tx_last | rx_last) & BIT(30))
 				clear = true;
@@ -87,10 +90,10 @@ static void mt7921_mac_sta_poll(struct mt792x_dev *dev)
 		if (clear) {
 			mt7921_mac_wtbl_update(dev, idx,
 					       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
-			memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
+			memset(mlink->airtime_ac, 0, sizeof(mlink->airtime_ac));
 		}
 
-		if (!msta->wcid.sta)
+		if (!mlink->wcid.sta)
 			continue;
 
 		sta = container_of((void *)msta, struct ieee80211_sta,
@@ -113,7 +116,7 @@ static void mt7921_mac_sta_poll(struct mt792x_dev *dev)
 		 * we need to make sure that flags match so polling GI
 		 * from per-sta counters directly.
 		 */
-		rate = &msta->wcid.rate;
+		rate = &mlink->wcid.rate;
 		addr = mt7921_mac_wtbl_lmac_addr(idx,
 						 MT_WTBL_TXRX_CAP_RATE_OFFSET);
 		val = mt76_rr(dev, addr);
@@ -154,10 +157,10 @@ static void mt7921_mac_sta_poll(struct mt792x_dev *dev)
 		rssi[2] = to_rssi(GENMASK(23, 16), val);
 		rssi[3] = to_rssi(GENMASK(31, 14), val);
 
-		msta->ack_signal =
+		mlink->ack_signal =
 			mt76_rx_signal(msta->vif->phy->mt76->antenna_mask, rssi);
 
-		ewma_avg_signal_add(&msta->avg_ack_signal, -msta->ack_signal);
+		ewma_avg_signal_add(&mlink->avg_ack_signal, -mlink->ack_signal);
 	}
 }
 
@@ -180,6 +183,7 @@ mt7921_mac_fill_rx(struct mt792x_dev *dev, struct sk_buff *skb)
 	u32 rxd3 = le32_to_cpu(rxd[3]);
 	u32 rxd4 = le32_to_cpu(rxd[4]);
 	struct mt792x_sta *msta = NULL;
+	struct mt792x_link_sta *mlink;
 	u16 seq_ctrl = 0;
 	__le16 fc = 0;
 	u8 mode = 0;
@@ -210,10 +214,11 @@ mt7921_mac_fill_rx(struct mt792x_dev *dev, struct sk_buff *skb)
 	status->wcid = mt792x_rx_get_wcid(dev, idx, unicast);
 
 	if (status->wcid) {
-		msta = container_of(status->wcid, struct mt792x_sta, wcid);
+		mlink = container_of(status->wcid, struct mt792x_link_sta, wcid);
+		msta = container_of(mlink, struct mt792x_sta, deflink);
 		spin_lock_bh(&dev->mt76.sta_poll_lock);
-		if (list_empty(&msta->wcid.poll_list))
-			list_add_tail(&msta->wcid.poll_list,
+		if (list_empty(&mlink->wcid.poll_list))
+			list_add_tail(&mlink->wcid.poll_list,
 				      &dev->mt76.sta_poll_list);
 		spin_unlock_bh(&dev->mt76.sta_poll_lock);
 	}
@@ -444,7 +449,7 @@ mt7921_mac_fill_rx(struct mt792x_dev *dev, struct sk_buff *skb)
 
 void mt7921_mac_add_txs(struct mt792x_dev *dev, void *data)
 {
-	struct mt792x_sta *msta = NULL;
+	struct mt792x_link_sta *mlink;
 	struct mt76_wcid *wcid;
 	__le32 *txs_data = data;
 	u16 wcidx;
@@ -468,15 +473,15 @@ void mt7921_mac_add_txs(struct mt792x_dev *dev, void *data)
 	if (!wcid)
 		goto out;
 
-	msta = container_of(wcid, struct mt792x_sta, wcid);
+	mlink = container_of(wcid, struct mt792x_link_sta, wcid);
 
 	mt76_connac2_mac_add_txs_skb(&dev->mt76, wcid, pid, txs_data);
 	if (!wcid->sta)
 		goto out;
 
 	spin_lock_bh(&dev->mt76.sta_poll_lock);
-	if (list_empty(&msta->wcid.poll_list))
-		list_add_tail(&msta->wcid.poll_list, &dev->mt76.sta_poll_list);
+	if (list_empty(&mlink->wcid.poll_list))
+		list_add_tail(&mlink->wcid.poll_list, &dev->mt76.sta_poll_list);
 	spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
 out:
@@ -513,7 +518,7 @@ static void mt7921_mac_tx_free(struct mt792x_dev *dev, void *data, int len)
 		 * 1'b0: msdu_id with the same 'wcid pair' as above.
 		 */
 		if (info & MT_TX_FREE_PAIR) {
-			struct mt792x_sta *msta;
+			struct mt792x_link_sta *mlink;
 			u16 idx;
 
 			count++;
@@ -523,10 +528,10 @@ static void mt7921_mac_tx_free(struct mt792x_dev *dev, void *data, int len)
 			if (!sta)
 				continue;
 
-			msta = container_of(wcid, struct mt792x_sta, wcid);
+			mlink = container_of(wcid, struct mt792x_link_sta, wcid);
 			spin_lock_bh(&mdev->sta_poll_lock);
-			if (list_empty(&msta->wcid.poll_list))
-				list_add_tail(&msta->wcid.poll_list,
+			if (list_empty(&mlink->wcid.poll_list))
+				list_add_tail(&mlink->wcid.poll_list,
 					      &mdev->sta_poll_list);
 			spin_unlock_bh(&mdev->sta_poll_lock);
 			continue;
@@ -641,11 +646,11 @@ 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.wcid, true);
+	mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.deflink.wcid, true);
 	mt7921_mcu_set_tx(dev, vif);
 
 	if (vif->type == NL80211_IFTYPE_AP) {
-		mt76_connac_mcu_uni_add_bss(dev->phy.mt76, vif, &mvif->sta.wcid,
+		mt76_connac_mcu_uni_add_bss(dev->phy.mt76, vif, &mvif->sta.deflink.wcid,
 					    true, NULL);
 		mt7921_mcu_sta_update(dev, NULL, vif, true,
 				      MT76_STA_INFO_STATE_NONE);
@@ -786,9 +791,9 @@ int mt7921_usb_sdio_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
 	if (sta) {
 		struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
 
-		if (time_after(jiffies, msta->last_txs + HZ / 4)) {
+		if (time_after(jiffies, msta->deflink.last_txs + HZ / 4)) {
 			info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
-			msta->last_txs = jiffies;
+			msta->deflink.last_txs = jiffies;
 		}
 	}
 

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

@@ -306,7 +306,7 @@ 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.wcid,
+	ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.deflink.wcid,
 					  true);
 	if (ret)
 		goto out;
@@ -316,19 +316,19 @@ mt7921_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 
 	idx = MT792x_WTBL_RESERVED - mvif->bss_conf.mt76.idx;
 
-	INIT_LIST_HEAD(&mvif->sta.wcid.poll_list);
-	mvif->sta.wcid.idx = idx;
-	mvif->sta.wcid.phy_idx = mvif->bss_conf.mt76.band_idx;
-	mvif->sta.wcid.hw_key_idx = -1;
-	mvif->sta.wcid.tx_info |= MT_WCID_TX_INFO_SET;
-	mt76_wcid_init(&mvif->sta.wcid);
+	INIT_LIST_HEAD(&mvif->sta.deflink.wcid.poll_list);
+	mvif->sta.deflink.wcid.idx = idx;
+	mvif->sta.deflink.wcid.phy_idx = mvif->bss_conf.mt76.band_idx;
+	mvif->sta.deflink.wcid.hw_key_idx = -1;
+	mvif->sta.deflink.wcid.tx_info |= MT_WCID_TX_INFO_SET;
+	mt76_wcid_init(&mvif->sta.deflink.wcid);
 
 	mt7921_mac_wtbl_update(dev, idx,
 			       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
 
 	ewma_rssi_init(&mvif->bss_conf.rssi);
 
-	rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
+	rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.deflink.wcid);
 	if (vif->txq) {
 		mtxq = (struct mt76_txq *)vif->txq->drv_priv;
 		mtxq->wcid = idx;
@@ -494,7 +494,7 @@ static int mt7921_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
 	struct mt792x_sta *msta = sta ? (struct mt792x_sta *)sta->drv_priv :
 				  &mvif->sta;
-	struct mt76_wcid *wcid = &msta->wcid;
+	struct mt76_wcid *wcid = &msta->deflink.wcid;
 	u8 *wcid_keyidx = &wcid->hw_key_idx;
 	int idx = key->keyidx, err = 0;
 
@@ -541,18 +541,18 @@ static int mt7921_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	}
 
 	mt76_wcid_key_setup(&dev->mt76, wcid, key);
-	err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->bip,
+	err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->deflink.bip,
 				      key, MCU_UNI_CMD(STA_REC_UPDATE),
-				      &msta->wcid, cmd);
+				      &msta->deflink.wcid, cmd);
 	if (err)
 		goto out;
 
 	if (key->cipher == WLAN_CIPHER_SUITE_WEP104 ||
 	    key->cipher == WLAN_CIPHER_SUITE_WEP40)
 		err = mt76_connac_mcu_add_key(&dev->mt76, vif,
-					      &mvif->wep_sta->bip,
+					      &mvif->wep_sta->deflink.bip,
 					      key, MCU_UNI_CMD(STA_REC_UPDATE),
-					      &mvif->wep_sta->wcid, cmd);
+					      &mvif->wep_sta->deflink.wcid, cmd);
 out:
 	mt792x_mutex_release(dev);
 
@@ -799,13 +799,13 @@ int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 	if (idx < 0)
 		return -ENOSPC;
 
-	INIT_LIST_HEAD(&msta->wcid.poll_list);
+	INIT_LIST_HEAD(&msta->deflink.wcid.poll_list);
 	msta->vif = mvif;
-	msta->wcid.sta = 1;
-	msta->wcid.idx = idx;
-	msta->wcid.phy_idx = mvif->bss_conf.mt76.band_idx;
-	msta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
-	msta->last_txs = jiffies;
+	msta->deflink.wcid.sta = 1;
+	msta->deflink.wcid.idx = idx;
+	msta->deflink.wcid.phy_idx = mvif->bss_conf.mt76.band_idx;
+	msta->deflink.wcid.tx_info |= MT_WCID_TX_INFO_SET;
+	msta->deflink.last_txs = jiffies;
 
 	ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm);
 	if (ret)
@@ -840,14 +840,14 @@ void mt7921_mac_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 	mt792x_mutex_acquire(dev);
 
 	if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
-		mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, &mvif->sta.wcid,
+		mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, &mvif->sta.deflink.wcid,
 					    true, mvif->bss_conf.mt76.ctx);
 
-	ewma_avg_signal_init(&msta->avg_ack_signal);
+	ewma_avg_signal_init(&msta->deflink.avg_ack_signal);
 
-	mt7921_mac_wtbl_update(dev, msta->wcid.idx,
+	mt7921_mac_wtbl_update(dev, msta->deflink.wcid.idx,
 			       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
-	memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
+	memset(msta->deflink.airtime_ac, 0, sizeof(msta->deflink.airtime_ac));
 
 	mt7921_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC);
 
@@ -861,11 +861,11 @@ void mt7921_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;
 
-	mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid);
+	mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->deflink.wcid);
 	mt76_connac_pm_wake(&dev->mphy, &dev->pm);
 
 	mt7921_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE);
-	mt7921_mac_wtbl_update(dev, msta->wcid.idx,
+	mt7921_mac_wtbl_update(dev, msta->deflink.wcid.idx,
 			       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
 
 	if (vif->type == NL80211_IFTYPE_STATION) {
@@ -875,13 +875,13 @@ void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 		ewma_rssi_init(&mvif->bss_conf.rssi);
 		if (!sta->tdls)
 			mt76_connac_mcu_uni_add_bss(&dev->mphy, vif,
-						    &mvif->sta.wcid, false,
+						    &mvif->sta.deflink.wcid, false,
 						    mvif->bss_conf.mt76.ctx);
 	}
 
 	spin_lock_bh(&dev->mt76.sta_poll_lock);
-	if (!list_empty(&msta->wcid.poll_list))
-		list_del_init(&msta->wcid.poll_list);
+	if (!list_empty(&msta->deflink.wcid.poll_list))
+		list_del_init(&msta->deflink.wcid.poll_list);
 	spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
 	mt7921_regd_set_6ghz_power_type(vif, false);
@@ -923,12 +923,12 @@ mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	mt792x_mutex_acquire(dev);
 	switch (action) {
 	case IEEE80211_AMPDU_RX_START:
-		mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
+		mt76_rx_aggr_start(&dev->mt76, &msta->deflink.wcid, tid, ssn,
 				   params->buf_size);
 		mt7921_mcu_uni_rx_ba(dev, params, true);
 		break;
 	case IEEE80211_AMPDU_RX_STOP:
-		mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
+		mt76_rx_aggr_stop(&dev->mt76, &msta->deflink.wcid, tid);
 		mt7921_mcu_uni_rx_ba(dev, params, false);
 		break;
 	case IEEE80211_AMPDU_TX_OPERATIONAL:
@@ -939,16 +939,16 @@ mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	case IEEE80211_AMPDU_TX_STOP_FLUSH:
 	case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
 		mtxq->aggr = false;
-		clear_bit(tid, &msta->wcid.ampdu_state);
+		clear_bit(tid, &msta->deflink.wcid.ampdu_state);
 		mt7921_mcu_uni_tx_ba(dev, params, false);
 		break;
 	case IEEE80211_AMPDU_TX_START:
-		set_bit(tid, &msta->wcid.ampdu_state);
+		set_bit(tid, &msta->deflink.wcid.ampdu_state);
 		ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
 		break;
 	case IEEE80211_AMPDU_TX_STOP_CONT:
 		mtxq->aggr = false;
-		clear_bit(tid, &msta->wcid.ampdu_state);
+		clear_bit(tid, &msta->deflink.wcid.ampdu_state);
 		mt7921_mcu_uni_tx_ba(dev, params, false);
 		ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 		break;
@@ -1166,11 +1166,11 @@ static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw,
 	mt792x_mutex_acquire(dev);
 
 	if (enabled)
-		set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
+		set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->deflink.wcid.flags);
 	else
-		clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
+		clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->deflink.wcid.flags);
 
-	mt76_connac_mcu_sta_update_hdr_trans(&dev->mt76, vif, &msta->wcid,
+	mt76_connac_mcu_sta_update_hdr_trans(&dev->mt76, vif, &msta->deflink.wcid,
 					     MCU_UNI_CMD(STA_REC_UPDATE));
 
 	mt792x_mutex_release(dev);
@@ -1294,7 +1294,7 @@ mt7921_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 
 	mt792x_mutex_acquire(dev);
 
-	err = mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.wcid,
+	err = mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.deflink.wcid,
 					  true, mvif->bss_conf.mt76.ctx);
 	if (err)
 		goto out;
@@ -1326,7 +1326,7 @@ mt7921_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	if (err)
 		goto out;
 
-	mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.wcid, false,
+	mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.deflink.wcid, false,
 				    mvif->bss_conf.mt76.ctx);
 
 out:

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

@@ -386,7 +386,7 @@ int mt7921_mcu_uni_tx_ba(struct mt792x_dev *dev,
 	struct mt792x_sta *msta = (struct mt792x_sta *)params->sta->drv_priv;
 
 	if (enable && !params->amsdu)
-		msta->wcid.amsdu = false;
+		msta->deflink.wcid.amsdu = false;
 
 	return mt76_connac_mcu_sta_ba(&dev->mt76, &msta->vif->bss_conf.mt76, params,
 				      MCU_UNI_CMD(STA_REC_UPDATE),
@@ -1055,7 +1055,7 @@ int mt7921_mcu_sta_update(struct mt792x_dev *dev, struct ieee80211_sta *sta,
 	struct mt792x_sta *msta;
 
 	msta = sta ? (struct mt792x_sta *)sta->drv_priv : NULL;
-	info.wcid = msta ? &msta->wcid : &mvif->sta.wcid;
+	info.wcid = msta ? &msta->deflink.wcid : &mvif->sta.deflink.wcid;
 	info.newly = msta ? state != MT76_STA_INFO_STATE_ASSOC : true;
 
 	return mt76_connac_mcu_sta_cmd(&dev->mphy, &info);

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

@@ -34,9 +34,9 @@ int mt7921e_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
 	if (sta) {
 		struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
 
-		if (time_after(jiffies, msta->last_txs + HZ / 4)) {
+		if (time_after(jiffies, msta->deflink.last_txs + HZ / 4)) {
 			info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
-			msta->last_txs = jiffies;
+			msta->deflink.last_txs = jiffies;
 		}
 	}
 

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

@@ -28,6 +28,7 @@ static void mt7925_mac_sta_poll(struct mt792x_dev *dev)
 	};
 	struct ieee80211_sta *sta;
 	struct mt792x_sta *msta;
+	struct mt792x_link_sta *mlink;
 	u32 tx_time[IEEE80211_NUM_ACS], rx_time[IEEE80211_NUM_ACS];
 	LIST_HEAD(sta_poll_list);
 	struct rate_info *rate;
@@ -46,24 +47,25 @@ static void mt7925_mac_sta_poll(struct mt792x_dev *dev)
 
 		if (list_empty(&sta_poll_list))
 			break;
-		msta = list_first_entry(&sta_poll_list,
-					struct mt792x_sta, wcid.poll_list);
+		mlink = list_first_entry(&sta_poll_list,
+					 struct mt792x_link_sta, wcid.poll_list);
+		msta = container_of(mlink, struct mt792x_sta, deflink);
 		spin_lock_bh(&dev->mt76.sta_poll_lock);
-		list_del_init(&msta->wcid.poll_list);
+		list_del_init(&mlink->wcid.poll_list);
 		spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
-		idx = msta->wcid.idx;
+		idx = mlink->wcid.idx;
 		addr = mt7925_mac_wtbl_lmac_addr(dev, idx, MT_WTBL_AC0_CTT_OFFSET);
 
 		for (i = 0; i < IEEE80211_NUM_ACS; i++) {
-			u32 tx_last = msta->airtime_ac[i];
-			u32 rx_last = msta->airtime_ac[i + 4];
+			u32 tx_last = mlink->airtime_ac[i];
+			u32 rx_last = mlink->airtime_ac[i + 4];
 
-			msta->airtime_ac[i] = mt76_rr(dev, addr);
-			msta->airtime_ac[i + 4] = mt76_rr(dev, addr + 4);
+			mlink->airtime_ac[i] = mt76_rr(dev, addr);
+			mlink->airtime_ac[i + 4] = mt76_rr(dev, addr + 4);
 
-			tx_time[i] = msta->airtime_ac[i] - tx_last;
-			rx_time[i] = msta->airtime_ac[i + 4] - rx_last;
+			tx_time[i] = mlink->airtime_ac[i] - tx_last;
+			rx_time[i] = mlink->airtime_ac[i + 4] - rx_last;
 
 			if ((tx_last | rx_last) & BIT(30))
 				clear = true;
@@ -74,10 +76,10 @@ static void mt7925_mac_sta_poll(struct mt792x_dev *dev)
 		if (clear) {
 			mt7925_mac_wtbl_update(dev, idx,
 					       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
-			memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
+			memset(mlink->airtime_ac, 0, sizeof(mlink->airtime_ac));
 		}
 
-		if (!msta->wcid.sta)
+		if (!mlink->wcid.sta)
 			continue;
 
 		sta = container_of((void *)msta, struct ieee80211_sta,
@@ -100,7 +102,7 @@ static void mt7925_mac_sta_poll(struct mt792x_dev *dev)
 		 * we need to make sure that flags match so polling GI
 		 * from per-sta counters directly.
 		 */
-		rate = &msta->wcid.rate;
+		rate = &mlink->wcid.rate;
 
 		switch (rate->bw) {
 		case RATE_INFO_BW_160:
@@ -144,10 +146,10 @@ static void mt7925_mac_sta_poll(struct mt792x_dev *dev)
 		rssi[2] = to_rssi(GENMASK(23, 16), val);
 		rssi[3] = to_rssi(GENMASK(31, 14), val);
 
-		msta->ack_signal =
+		mlink->ack_signal =
 			mt76_rx_signal(msta->vif->phy->mt76->antenna_mask, rssi);
 
-		ewma_avg_signal_add(&msta->avg_ack_signal, -msta->ack_signal);
+		ewma_avg_signal_add(&mlink->avg_ack_signal, -mlink->ack_signal);
 	}
 }
 
@@ -365,7 +367,7 @@ mt7925_mac_fill_rx(struct mt792x_dev *dev, struct sk_buff *skb)
 	u32 rxd2 = le32_to_cpu(rxd[2]);
 	u32 rxd3 = le32_to_cpu(rxd[3]);
 	u32 rxd4 = le32_to_cpu(rxd[4]);
-	struct mt792x_sta *msta = NULL;
+	struct mt792x_link_sta *mlink;
 	u8 mode = 0; /* , band_idx; */
 	u16 seq_ctrl = 0;
 	__le16 fc = 0;
@@ -393,10 +395,10 @@ mt7925_mac_fill_rx(struct mt792x_dev *dev, struct sk_buff *skb)
 	status->wcid = mt792x_rx_get_wcid(dev, idx, unicast);
 
 	if (status->wcid) {
-		msta = container_of(status->wcid, struct mt792x_sta, wcid);
+		mlink = container_of(status->wcid, struct mt792x_link_sta, wcid);
 		spin_lock_bh(&dev->mt76.sta_poll_lock);
-		if (list_empty(&msta->wcid.poll_list))
-			list_add_tail(&msta->wcid.poll_list,
+		if (list_empty(&mlink->wcid.poll_list))
+			list_add_tail(&mlink->wcid.poll_list,
 				      &dev->mt76.sta_poll_list);
 		spin_unlock_bh(&dev->mt76.sta_poll_lock);
 	}
@@ -851,7 +853,7 @@ static void mt7925_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi)
 		return;
 
 	msta = (struct mt792x_sta *)sta->drv_priv;
-	if (!test_and_set_bit(tid, &msta->wcid.ampdu_state))
+	if (!test_and_set_bit(tid, &msta->deflink.wcid.ampdu_state))
 		ieee80211_start_tx_ba_session(sta, tid, 0);
 }
 
@@ -991,7 +993,7 @@ mt7925_mac_add_txs_skb(struct mt792x_dev *dev, struct mt76_wcid *wcid,
 
 void mt7925_mac_add_txs(struct mt792x_dev *dev, void *data)
 {
-	struct mt792x_sta *msta = NULL;
+	struct mt792x_link_sta *mlink = NULL;
 	struct mt76_wcid *wcid;
 	__le32 *txs_data = data;
 	u16 wcidx;
@@ -1015,15 +1017,15 @@ void mt7925_mac_add_txs(struct mt792x_dev *dev, void *data)
 	if (!wcid)
 		goto out;
 
-	msta = container_of(wcid, struct mt792x_sta, wcid);
+	mlink = container_of(wcid, struct mt792x_link_sta, wcid);
 
 	mt7925_mac_add_txs_skb(dev, wcid, pid, txs_data);
 	if (!wcid->sta)
 		goto out;
 
 	spin_lock_bh(&dev->mt76.sta_poll_lock);
-	if (list_empty(&msta->wcid.poll_list))
-		list_add_tail(&msta->wcid.poll_list, &dev->mt76.sta_poll_list);
+	if (list_empty(&mlink->wcid.poll_list))
+		list_add_tail(&mlink->wcid.poll_list, &dev->mt76.sta_poll_list);
 	spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
 out:
@@ -1094,7 +1096,7 @@ mt7925_mac_tx_free(struct mt792x_dev *dev, void *data, int len)
 		 */
 		info = le32_to_cpu(*cur_info);
 		if (info & MT_TXFREE_INFO_PAIR) {
-			struct mt792x_sta *msta;
+			struct mt792x_link_sta *mlink;
 			u16 idx;
 
 			idx = FIELD_GET(MT_TXFREE_INFO_WLAN_ID, info);
@@ -1103,10 +1105,10 @@ mt7925_mac_tx_free(struct mt792x_dev *dev, void *data, int len)
 			if (!sta)
 				continue;
 
-			msta = container_of(wcid, struct mt792x_sta, wcid);
+			mlink = container_of(wcid, struct mt792x_link_sta, wcid);
 			spin_lock_bh(&mdev->sta_poll_lock);
-			if (list_empty(&msta->wcid.poll_list))
-				list_add_tail(&msta->wcid.poll_list,
+			if (list_empty(&mlink->wcid.poll_list))
+				list_add_tail(&mlink->wcid.poll_list,
 					      &mdev->sta_poll_list);
 			spin_unlock_bh(&mdev->sta_poll_lock);
 			continue;
@@ -1241,11 +1243,11 @@ 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.wcid, true);
+	mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.deflink.wcid, true);
 	mt7925_mcu_set_tx(dev, vif);
 
 	if (vif->type == NL80211_IFTYPE_AP) {
-		mt76_connac_mcu_uni_add_bss(dev->phy.mt76, vif, &mvif->sta.wcid,
+		mt76_connac_mcu_uni_add_bss(dev->phy.mt76, vif, &mvif->sta.deflink.wcid,
 					    true, NULL);
 		mt7925_mcu_sta_update(dev, NULL, vif, true,
 				      MT76_STA_INFO_STATE_NONE);
@@ -1380,9 +1382,9 @@ int mt7925_usb_sdio_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
 	if (sta) {
 		struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
 
-		if (time_after(jiffies, msta->last_txs + HZ / 4)) {
+		if (time_after(jiffies, msta->deflink.last_txs + HZ / 4)) {
 			info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
-			msta->last_txs = jiffies;
+			msta->deflink.last_txs = jiffies;
 		}
 	}
 

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

@@ -344,7 +344,7 @@ 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.wcid,
+	ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.deflink.wcid,
 					  true);
 	if (ret)
 		goto out;
@@ -354,20 +354,20 @@ mt7925_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 
 	idx = MT792x_WTBL_RESERVED - mvif->bss_conf.mt76.idx;
 
-	INIT_LIST_HEAD(&mvif->sta.wcid.poll_list);
-	mvif->sta.wcid.idx = idx;
-	mvif->sta.wcid.phy_idx = mvif->bss_conf.mt76.band_idx;
-	mvif->sta.wcid.hw_key_idx = -1;
-	mvif->sta.wcid.tx_info |= MT_WCID_TX_INFO_SET;
+	INIT_LIST_HEAD(&mvif->sta.deflink.wcid.poll_list);
+	mvif->sta.deflink.wcid.idx = idx;
+	mvif->sta.deflink.wcid.phy_idx = mvif->bss_conf.mt76.band_idx;
+	mvif->sta.deflink.wcid.hw_key_idx = -1;
+	mvif->sta.deflink.wcid.tx_info |= MT_WCID_TX_INFO_SET;
 	mvif->sta.vif = mvif;
-	mt76_wcid_init(&mvif->sta.wcid);
+	mt76_wcid_init(&mvif->sta.deflink.wcid);
 
 	mt7925_mac_wtbl_update(dev, idx,
 			       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
 
 	ewma_rssi_init(&mvif->bss_conf.rssi);
 
-	rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
+	rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.deflink.wcid);
 	if (vif->txq) {
 		mtxq = (struct mt76_txq *)vif->txq->drv_priv;
 		mtxq->wcid = idx;
@@ -486,7 +486,7 @@ static int mt7925_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
 	struct mt792x_sta *msta = sta ? (struct mt792x_sta *)sta->drv_priv :
 				  &mvif->sta;
-	struct mt76_wcid *wcid = &msta->wcid;
+	struct mt76_wcid *wcid = &msta->deflink.wcid;
 	u8 *wcid_keyidx = &wcid->hw_key_idx;
 	int idx = key->keyidx, err = 0;
 
@@ -541,18 +541,18 @@ static int mt7925_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	mt76_wcid_key_setup(&dev->mt76, wcid,
 			    cmd == SET_KEY ? key : NULL);
 
-	err = mt7925_mcu_add_key(&dev->mt76, vif, &msta->bip,
+	err = mt7925_mcu_add_key(&dev->mt76, vif, &msta->deflink.bip,
 				 key, MCU_UNI_CMD(STA_REC_UPDATE),
-				 &msta->wcid, cmd);
+				 &msta->deflink.wcid, cmd);
 
 	if (err)
 		goto out;
 
 	if (key->cipher == WLAN_CIPHER_SUITE_WEP104 ||
 	    key->cipher == WLAN_CIPHER_SUITE_WEP40)
-		err = mt7925_mcu_add_key(&dev->mt76, vif, &mvif->wep_sta->bip,
+		err = mt7925_mcu_add_key(&dev->mt76, vif, &mvif->wep_sta->deflink.bip,
 					 key, MCU_WMWA_UNI_CMD(STA_REC_UPDATE),
-					 &mvif->wep_sta->wcid, cmd);
+					 &mvif->wep_sta->deflink.wcid, cmd);
 
 out:
 	mt792x_mutex_release(dev);
@@ -766,13 +766,13 @@ int mt7925_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 	if (idx < 0)
 		return -ENOSPC;
 
-	INIT_LIST_HEAD(&msta->wcid.poll_list);
+	INIT_LIST_HEAD(&msta->deflink.wcid.poll_list);
 	msta->vif = mvif;
-	msta->wcid.sta = 1;
-	msta->wcid.idx = idx;
-	msta->wcid.phy_idx = mvif->bss_conf.mt76.band_idx;
-	msta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
-	msta->last_txs = jiffies;
+	msta->deflink.wcid.sta = 1;
+	msta->deflink.wcid.idx = idx;
+	msta->deflink.wcid.phy_idx = mvif->bss_conf.mt76.band_idx;
+	msta->deflink.wcid.tx_info |= MT_WCID_TX_INFO_SET;
+	msta->deflink.last_txs = jiffies;
 
 	ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm);
 	if (ret)
@@ -813,11 +813,11 @@ void mt7925_mac_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 		mt7925_mcu_add_bss_info(&dev->phy, mvif->bss_conf.mt76.ctx, vif, sta,
 					true);
 
-	ewma_avg_signal_init(&msta->avg_ack_signal);
+	ewma_avg_signal_init(&msta->deflink.avg_ack_signal);
 
-	mt7925_mac_wtbl_update(dev, msta->wcid.idx,
+	mt7925_mac_wtbl_update(dev, msta->deflink.wcid.idx,
 			       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
-	memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
+	memset(msta->deflink.airtime_ac, 0, sizeof(msta->deflink.airtime_ac));
 
 	mt7925_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC);
 
@@ -831,11 +831,11 @@ 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;
 
-	mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid);
+	mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->deflink.wcid);
 	mt76_connac_pm_wake(&dev->mphy, &dev->pm);
 
 	mt7925_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE);
-	mt7925_mac_wtbl_update(dev, msta->wcid.idx,
+	mt7925_mac_wtbl_update(dev, msta->deflink.wcid.idx,
 			       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
 
 	if (vif->type == NL80211_IFTYPE_STATION) {
@@ -849,8 +849,8 @@ void mt7925_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 	}
 
 	spin_lock_bh(&mdev->sta_poll_lock);
-	if (!list_empty(&msta->wcid.poll_list))
-		list_del_init(&msta->wcid.poll_list);
+	if (!list_empty(&msta->deflink.wcid.poll_list))
+		list_del_init(&msta->deflink.wcid.poll_list);
 	spin_unlock_bh(&mdev->sta_poll_lock);
 
 	mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
@@ -890,12 +890,12 @@ mt7925_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	mt792x_mutex_acquire(dev);
 	switch (action) {
 	case IEEE80211_AMPDU_RX_START:
-		mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
+		mt76_rx_aggr_start(&dev->mt76, &msta->deflink.wcid, tid, ssn,
 				   params->buf_size);
 		mt7925_mcu_uni_rx_ba(dev, params, true);
 		break;
 	case IEEE80211_AMPDU_RX_STOP:
-		mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
+		mt76_rx_aggr_stop(&dev->mt76, &msta->deflink.wcid, tid);
 		mt7925_mcu_uni_rx_ba(dev, params, false);
 		break;
 	case IEEE80211_AMPDU_TX_OPERATIONAL:
@@ -906,16 +906,16 @@ mt7925_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	case IEEE80211_AMPDU_TX_STOP_FLUSH:
 	case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
 		mtxq->aggr = false;
-		clear_bit(tid, &msta->wcid.ampdu_state);
+		clear_bit(tid, &msta->deflink.wcid.ampdu_state);
 		mt7925_mcu_uni_tx_ba(dev, params, false);
 		break;
 	case IEEE80211_AMPDU_TX_START:
-		set_bit(tid, &msta->wcid.ampdu_state);
+		set_bit(tid, &msta->deflink.wcid.ampdu_state);
 		ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
 		break;
 	case IEEE80211_AMPDU_TX_STOP_CONT:
 		mtxq->aggr = false;
-		clear_bit(tid, &msta->wcid.ampdu_state);
+		clear_bit(tid, &msta->deflink.wcid.ampdu_state);
 		mt7925_mcu_uni_tx_ba(dev, params, false);
 		ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 		break;
@@ -1161,9 +1161,9 @@ static void mt7925_sta_set_decap_offload(struct ieee80211_hw *hw,
 	mt792x_mutex_acquire(dev);
 
 	if (enabled)
-		set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
+		set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->deflink.wcid.flags);
 	else
-		clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
+		clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->deflink.wcid.flags);
 
 	mt7925_mcu_wtbl_update_hdr_trans(dev, vif, sta);
 

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

@@ -544,7 +544,7 @@ int mt7925_mcu_uni_tx_ba(struct mt792x_dev *dev,
 	struct mt792x_vif *mvif = msta->vif;
 
 	if (enable && !params->amsdu)
-		msta->wcid.amsdu = false;
+		msta->deflink.wcid.amsdu = false;
 
 	return mt7925_mcu_sta_ba(&dev->mt76, &mvif->bss_conf.mt76, params,
 				 enable, true);
@@ -867,7 +867,7 @@ mt7925_mcu_sta_hdr_trans_tlv(struct sk_buff *skb,
 	if (sta)
 		wcid = (struct mt76_wcid *)sta->drv_priv;
 	else
-		wcid = &mvif->sta.wcid;
+		wcid = &mvif->sta.deflink.wcid;
 
 	if (!wcid)
 		return;
@@ -890,7 +890,7 @@ int mt7925_mcu_wtbl_update_hdr_trans(struct mt792x_dev *dev,
 	msta = sta ? (struct mt792x_sta *)sta->drv_priv : &mvif->sta;
 
 	skb = __mt76_connac_mcu_alloc_sta_req(&dev->mt76, &mvif->bss_conf.mt76,
-					      &msta->wcid,
+					      &msta->deflink.wcid,
 					      MT7925_STA_UPDATE_MAX_SIZE);
 	if (IS_ERR(skb))
 		return PTR_ERR(skb);
@@ -962,7 +962,8 @@ mt7925_mcu_sta_key_tlv(struct mt76_wcid *wcid,
 		       struct ieee80211_key_conf *key,
 		       enum set_key_cmd cmd)
 {
-	struct mt792x_sta *msta = container_of(wcid, struct mt792x_sta, wcid);
+	struct mt792x_link_sta *mlink = container_of(wcid, struct mt792x_link_sta, wcid);
+	struct mt792x_sta *msta = container_of(mlink, struct mt792x_sta, deflink);
 	struct sta_rec_sec_uni *sec;
 	struct mt792x_vif *mvif = msta->vif;
 	struct ieee80211_sta *sta;
@@ -1480,7 +1481,7 @@ mt7925_mcu_sta_amsdu_tlv(struct sk_buff *skb,
 	amsdu = (struct sta_rec_amsdu *)tlv;
 	amsdu->max_amsdu_num = 8;
 	amsdu->amsdu_en = true;
-	msta->wcid.amsdu = true;
+	msta->deflink.wcid.amsdu = true;
 
 	switch (sta->deflink.agg.max_amsdu_len) {
 	case IEEE80211_MAX_MPDU_LEN_VHT_11454:
@@ -1668,7 +1669,7 @@ int mt7925_mcu_sta_update(struct mt792x_dev *dev, struct ieee80211_sta *sta,
 	struct mt792x_sta *msta;
 
 	msta = sta ? (struct mt792x_sta *)sta->drv_priv : NULL;
-	info.wcid = msta ? &msta->wcid : &mvif->sta.wcid;
+	info.wcid = msta ? &msta->deflink.wcid : &mvif->sta.deflink.wcid;
 	info.newly = msta ? state != MT76_STA_INFO_STATE_ASSOC : true;
 
 	return mt7925_mcu_sta_cmd(&dev->mphy, &info);
@@ -2096,7 +2097,7 @@ mt7925_mcu_bss_basic_tlv(struct sk_buff *skb,
 	basic_req->bcn_interval = cpu_to_le16(vif->bss_conf.beacon_int);
 	basic_req->dtim_period = vif->bss_conf.dtim_period;
 	basic_req->bmc_tx_wlan_idx = cpu_to_le16(wlan_idx);
-	basic_req->sta_idx = cpu_to_le16(msta->wcid.idx);
+	basic_req->sta_idx = cpu_to_le16(msta->deflink.wcid.idx);
 	basic_req->omac_idx = mvif->bss_conf.mt76.omac_idx;
 	basic_req->band_idx = mvif->bss_conf.mt76.band_idx;
 	basic_req->wmm_idx = mvif->bss_conf.mt76.wmm_idx;
@@ -2330,7 +2331,7 @@ int mt7925_mcu_add_bss_info(struct mt792x_phy *phy,
 
 	/* bss_basic must be first */
 	mt7925_mcu_bss_basic_tlv(skb, vif, sta, ctx, phy->mt76,
-				 mvif->sta.wcid.idx, enable);
+				 mvif->sta.deflink.wcid.idx, enable);
 	mt7925_mcu_bss_sec_tlv(skb, vif);
 
 	mt7925_mcu_bss_bmc_tlv(skb, phy, ctx, vif, sta);

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

@@ -34,9 +34,9 @@ int mt7925e_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
 	if (sta) {
 		struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
 
-		if (time_after(jiffies, msta->last_txs + HZ / 4)) {
+		if (time_after(jiffies, msta->deflink.last_txs + HZ / 4)) {
 			info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
-			msta->last_txs = jiffies;
+			msta->deflink.last_txs = jiffies;
 		}
 	}
 

drivers/net/wireless/mediatek/mt76/mt792x.h

@@ -81,11 +81,9 @@ enum mt792x_reg_power_type {
 
 DECLARE_EWMA(avg_signal, 10, 8)
 
-struct mt792x_sta {
+struct mt792x_link_sta {
 	struct mt76_wcid wcid; /* must be first */
 
-	struct mt792x_vif *vif;
-
 	u32 airtime_ac[8];
 
 	int ack_signal;
@@ -96,6 +94,12 @@ struct mt792x_sta {
 	struct mt76_connac_sta_key_conf bip;
 };
 
+struct mt792x_sta {
+	struct mt792x_link_sta deflink; /* must be first */
+
+	struct mt792x_vif *vif;
+};
+
 DECLARE_EWMA(rssi, 10, 8);
 
 struct mt792x_bss_conf {

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

@@ -65,14 +65,14 @@ void mt792x_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
 		struct mt792x_sta *sta;
 
 		sta = (struct mt792x_sta *)control->sta->drv_priv;
-		wcid = &sta->wcid;
+		wcid = &sta->deflink.wcid;
 	}
 
 	if (vif && !control->sta) {
 		struct mt792x_vif *mvif;
 
 		mvif = (struct mt792x_vif *)vif->drv_priv;
-		wcid = &mvif->sta.wcid;
+		wcid = &mvif->sta.deflink.wcid;
 	}
 
 	if (mt76_connac_pm_ref(mphy, &dev->pm)) {
@@ -120,11 +120,11 @@ void mt792x_remove_interface(struct ieee80211_hw *hw,
 	struct mt792x_sta *msta = &mvif->sta;
 	struct mt792x_dev *dev = mt792x_hw_dev(hw);
 	struct mt792x_phy *phy = mt792x_hw_phy(hw);
-	int idx = msta->wcid.idx;
+	int idx = msta->deflink.wcid.idx;
 
 	mt792x_mutex_acquire(dev);
-	mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid);
-	mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid, false);
+	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);
 
 	rcu_assign_pointer(dev->mt76.wcid[idx], NULL);
 
@@ -133,11 +133,11 @@ void mt792x_remove_interface(struct ieee80211_hw *hw,
 	mt792x_mutex_release(dev);
 
 	spin_lock_bh(&dev->mt76.sta_poll_lock);
-	if (!list_empty(&msta->wcid.poll_list))
-		list_del_init(&msta->wcid.poll_list);
+	if (!list_empty(&msta->deflink.wcid.poll_list))
+		list_del_init(&msta->deflink.wcid.poll_list);
 	spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
-	mt76_wcid_cleanup(&dev->mt76, &msta->wcid);
+	mt76_wcid_cleanup(&dev->mt76, &msta->deflink.wcid);
 }
 EXPORT_SYMBOL_GPL(mt792x_remove_interface);
 
@@ -408,7 +408,7 @@ mt792x_ethtool_worker(void *wi_data, struct ieee80211_sta *sta)
 	if (msta->vif->bss_conf.mt76.idx != wi->idx)
 		return;
 
-	mt76_ethtool_worker(wi, &msta->wcid.stats, true);
+	mt76_ethtool_worker(wi, &msta->deflink.wcid.stats, true);
 }
 
 void mt792x_get_et_stats(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
@@ -487,7 +487,7 @@ void mt792x_sta_statistics(struct ieee80211_hw *hw,
 			   struct station_info *sinfo)
 {
 	struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
-	struct rate_info *txrate = &msta->wcid.rate;
+	struct rate_info *txrate = &msta->deflink.wcid.rate;
 
 	if (!txrate->legacy && !txrate->flags)
 		return;
@@ -502,19 +502,19 @@ void mt792x_sta_statistics(struct ieee80211_hw *hw,
 		sinfo->txrate.he_dcm = txrate->he_dcm;
 		sinfo->txrate.he_ru_alloc = txrate->he_ru_alloc;
 	}
-	sinfo->tx_failed = msta->wcid.stats.tx_failed;
+	sinfo->tx_failed = msta->deflink.wcid.stats.tx_failed;
 	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_FAILED);
 
-	sinfo->tx_retries = msta->wcid.stats.tx_retries;
+	sinfo->tx_retries = msta->deflink.wcid.stats.tx_retries;
 	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_RETRIES);
 
 	sinfo->txrate.flags = txrate->flags;
 	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
 
-	sinfo->ack_signal = (s8)msta->ack_signal;
+	sinfo->ack_signal = (s8)msta->deflink.ack_signal;
 	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_ACK_SIGNAL);
 
-	sinfo->avg_ack_signal = -(s8)ewma_avg_signal_read(&msta->avg_ack_signal);
+	sinfo->avg_ack_signal = -(s8)ewma_avg_signal_read(&msta->deflink.avg_ack_signal);
 	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_ACK_SIGNAL_AVG);
 }
 EXPORT_SYMBOL_GPL(mt792x_sta_statistics);

drivers/net/wireless/mediatek/mt76/mt792x_mac.c

@@ -138,6 +138,7 @@ EXPORT_SYMBOL_GPL(mt792x_mac_update_mib_stats);
 struct mt76_wcid *mt792x_rx_get_wcid(struct mt792x_dev *dev, u16 idx,
 				     bool unicast)
 {
+	struct mt792x_link_sta *link;
 	struct mt792x_sta *sta;
 	struct mt76_wcid *wcid;
 
@@ -151,11 +152,12 @@ struct mt76_wcid *mt792x_rx_get_wcid(struct mt792x_dev *dev, u16 idx,
 	if (!wcid->sta)
 		return NULL;
 
-	sta = container_of(wcid, struct mt792x_sta, wcid);
+	link = container_of(wcid, struct mt792x_link_sta, wcid);
+	sta = container_of(link, struct mt792x_sta, deflink);
 	if (!sta->vif)
 		return NULL;
 
-	return &sta->vif->sta.wcid;
+	return &sta->vif->sta.deflink.wcid;
 }
 EXPORT_SYMBOL_GPL(mt792x_rx_get_wcid);