Subject: [PATCH 2/2] mt76:mt7915:mt76-mt7986-add-wed-rx-support

Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
---
 dma.c             | 187 +++++++++++++++++++++++++++++++++++++++-------
 dma.h             |   8 ++
 mac80211.c        |   4 +
 mt76.h            |  20 ++++-
 mt76_connac_mcu.c |   7 ++
 mt7915/dma.c      |   6 ++
 mt7915/mac.c      |  66 ++++++++++++++++
 mt7915/mcu.c      |   2 +
 mt7915/mt7915.h   |   4 +
 mt7915/regs.h     |   3 +
 mt7915/wed.c      |  27 ++++++-
 tx.c              |  34 +++++++++
 12 files changed, 334 insertions(+), 34 deletions(-)

diff --git a/dma.c b/dma.c
index 621bb74e..6643749d 100644
--- a/dma.c
+++ b/dma.c
@@ -93,6 +93,60 @@ mt76_put_txwi(struct mt76_dev *dev, struct mt76_txwi_cache *t)
 }
 EXPORT_SYMBOL_GPL(mt76_put_txwi);
 
+static struct mt76_txwi_cache *
+mt76_alloc_rxwi(struct mt76_dev *dev)
+{
+	struct mt76_txwi_cache *r;
+	int size;
+
+	size = L1_CACHE_ALIGN(sizeof(*r));
+	r = devm_kzalloc(dev->dev, size, GFP_ATOMIC);
+	if (!r)
+		return NULL;
+
+	return r;
+}
+
+static struct mt76_txwi_cache *
+__mt76_get_rxwi(struct mt76_dev *dev)
+{
+	struct mt76_txwi_cache *r = NULL;
+
+	spin_lock(&dev->wed_lock);
+	if (!list_empty(&dev->rxwi_cache)) {
+		r = list_first_entry(&dev->rxwi_cache, struct mt76_txwi_cache,
+				     list);
+		list_del(&r->list);
+	}
+	spin_unlock(&dev->wed_lock);
+
+	return r;
+}
+
+struct mt76_txwi_cache *
+mt76_get_rxwi(struct mt76_dev *dev)
+{
+	struct mt76_txwi_cache *r = __mt76_get_rxwi(dev);
+
+	if (r)
+		return r;
+
+	return mt76_alloc_rxwi(dev);
+}
+EXPORT_SYMBOL_GPL(mt76_get_rxwi);
+
+void
+mt76_put_rxwi(struct mt76_dev *dev, struct mt76_txwi_cache *r)
+{
+	if (!r)
+		return;
+
+	spin_lock(&dev->wed_lock);
+	list_add(&r->list, &dev->rxwi_cache);
+	spin_unlock(&dev->wed_lock);
+}
+EXPORT_SYMBOL_GPL(mt76_put_rxwi);
+
 static void
 mt76_free_pending_txwi(struct mt76_dev *dev)
 {
@@ -164,6 +218,11 @@ mt76_dma_wed_setup(struct mt76_dev *dev, struct mt76_queue *q)
 		if (!ret)
 			q->wed_regs = wed->txfree_ring.reg_base;
 		break;
+	case MT76_WED_Q_RX:
+		ret = mtk_wed_device_rx_ring_setup(wed, ring, q->regs);
+		if (!ret)
+			q->wed_regs = wed->rx_ring[ring].reg_base;
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -177,6 +236,8 @@ mt76_dma_alloc_queue(struct mt76_dev *dev, struct mt76_queue *q,
 		     u32 ring_base)
 {
 	int ret, size;
+	int type;
+	struct mtk_wed_device *wed = &dev->mmio.wed;
 
 	spin_lock_init(&q->lock);
 	spin_lock_init(&q->cleanup_lock);
@@ -186,6 +247,11 @@ mt76_dma_alloc_queue(struct mt76_dev *dev, struct mt76_queue *q,
 	q->buf_size = bufsize;
 	q->hw_idx = idx;
 
+	type = FIELD_GET(MT_QFLAG_WED_TYPE, q->flags);
+	if (mtk_wed_device_active(wed) && type == MT76_WED_Q_RX)
+		q->buf_size = SKB_DATA_ALIGN(NET_SKB_PAD + MTK_WED_RX_PKT_SIZE) +
+				    SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+
 	size = q->ndesc * sizeof(struct mt76_desc);
 	q->desc = dmam_alloc_coherent(dev->dev, size, &q->desc_dma, GFP_KERNEL);
 	if (!q->desc)
@@ -211,10 +277,13 @@ mt76_dma_add_buf(struct mt76_dev *dev, struct mt76_queue *q,
 		 struct mt76_queue_buf *buf, int nbufs, u32 info,
 		 struct sk_buff *skb, void *txwi)
 {
+	struct mtk_wed_device *wed = &dev->mmio.wed;
+
 	struct mt76_queue_entry *entry;
 	struct mt76_desc *desc;
 	u32 ctrl;
 	int i, idx = -1;
+	int type;
 
 	if (txwi) {
 		q->entry[q->head].txwi = DMA_DUMMY_DATA;
@@ -230,33 +299,54 @@ mt76_dma_add_buf(struct mt76_dev *dev, struct mt76_queue *q,
 		desc = &q->desc[idx];
 		entry = &q->entry[idx];
 
-		if (buf[0].skip_unmap)
-			entry->skip_buf0 = true;
-		entry->skip_buf1 = i == nbufs - 1;
-
-		entry->dma_addr[0] = buf[0].addr;
-		entry->dma_len[0] = buf[0].len;
-
-		ctrl = FIELD_PREP(MT_DMA_CTL_SD_LEN0, buf[0].len);
-		if (i < nbufs - 1) {
-			entry->dma_addr[1] = buf[1].addr;
-			entry->dma_len[1] = buf[1].len;
-			buf1 = buf[1].addr;
-			ctrl |= FIELD_PREP(MT_DMA_CTL_SD_LEN1, buf[1].len);
-			if (buf[1].skip_unmap)
-				entry->skip_buf1 = true;
+		type = FIELD_GET(MT_QFLAG_WED_TYPE, q->flags);
+		if (mtk_wed_device_active(wed) && type == MT76_WED_Q_RX) {
+			struct mt76_txwi_cache * rxwi;
+			int rx_token;
+
+			rxwi = mt76_get_rxwi(dev);
+			if (!rxwi)
+				return -ENOMEM;
+
+			rx_token = mt76_rx_token_consume(dev, (void *)skb, rxwi,
+							 buf[0].addr);
+
+			buf1 |= FIELD_PREP(MT_DMA_CTL_TOKEN, rx_token);
+			ctrl |= MT_DMA_CTL_TO_HOST;
+			ctrl |= FIELD_PREP(MT_DMA_CTL_SD_LEN0, MTK_WED_RX_PKT_SIZE);
+		} else {
+			if (buf[0].skip_unmap)
+				entry->skip_buf0 = true;
+			entry->skip_buf1 = i == nbufs - 1;
+
+			entry->dma_addr[0] = buf[0].addr;
+			entry->dma_len[0] = buf[0].len;
+
+			ctrl = FIELD_PREP(MT_DMA_CTL_SD_LEN0, buf[0].len);
+			if (i < nbufs - 1) {
+				entry->dma_addr[1] = buf[1].addr;
+				entry->dma_len[1] = buf[1].len;
+				buf1 = buf[1].addr;
+				ctrl |= FIELD_PREP(MT_DMA_CTL_SD_LEN1, buf[1].len);
+				if (buf[1].skip_unmap)
+					entry->skip_buf1 = true;
+			}
+			if (i == nbufs - 1)
+				ctrl |= MT_DMA_CTL_LAST_SEC0;
+			else if (i == nbufs - 2)
+				ctrl |= MT_DMA_CTL_LAST_SEC1;
 		}
 
-		if (i == nbufs - 1)
-			ctrl |= MT_DMA_CTL_LAST_SEC0;
-		else if (i == nbufs - 2)
-			ctrl |= MT_DMA_CTL_LAST_SEC1;
-
 		WRITE_ONCE(desc->buf0, cpu_to_le32(buf0));
 		WRITE_ONCE(desc->buf1, cpu_to_le32(buf1));
 		WRITE_ONCE(desc->info, cpu_to_le32(info));
 		WRITE_ONCE(desc->ctrl, cpu_to_le32(ctrl));
 
+		if (mtk_wed_device_active(wed) && type == MT76_WED_Q_RX) {
+			dma_sync_single_for_device(dev->dev,  buf[0].addr, MTK_WED_RX_PKT_SIZE,
+						   DMA_TO_DEVICE);
+		}
+
 		q->queued++;
 	}
 
@@ -341,33 +431,62 @@ mt76_dma_tx_cleanup(struct mt76_dev *dev, struct mt76_queue *q, bool flush)
 
 static void *
 mt76_dma_get_buf(struct mt76_dev *dev, struct mt76_queue *q, int idx,
-		 int *len, u32 *info, bool *more)
+		 int *len, u32 *info, bool *more, bool *drop)
 {
 	struct mt76_queue_entry *e = &q->entry[idx];
 	struct mt76_desc *desc = &q->desc[idx];
 	dma_addr_t buf_addr;
 	void *buf = e->buf;
 	int buf_len = SKB_WITH_OVERHEAD(q->buf_size);
+	struct mtk_wed_device *wed = &dev->mmio.wed;
+	int type;
 
-	buf_addr = e->dma_addr[0];
 	if (len) {
 		u32 ctl = le32_to_cpu(READ_ONCE(desc->ctrl));
 		*len = FIELD_GET(MT_DMA_CTL_SD_LEN0, ctl);
 		*more = !(ctl & MT_DMA_CTL_LAST_SEC0);
 	}
 
-	if (info)
-		*info = le32_to_cpu(desc->info);
+	type = FIELD_GET(MT_QFLAG_WED_TYPE, q->flags);
+	if (mtk_wed_device_active(wed) && type == MT76_WED_Q_RX) {
+		u32 token;
+		struct mt76_txwi_cache *r;
+
+		token = FIELD_GET(MT_DMA_CTL_TOKEN, desc->buf1);
+
+		r = mt76_rx_token_release(dev, token);
+		if (!r)
+			return NULL;
+
+		buf = r->buf;
+		buf_addr = r->dma_addr;
+		buf_len = MTK_WED_RX_PKT_SIZE;
+		r->buf = NULL;
+		r->dma_addr = 0;
+
+		mt76_put_rxwi(dev, r);
+
+		dma_sync_single_for_cpu(dev->dev, buf_addr, buf_len,
+					DMA_TO_DEVICE);
+
+		if (desc->ctrl & (MT_DMA_CTL_TO_HOST_A | MT_DMA_CTL_DROP))
+			*drop = true;
+	} else {
+		buf_addr = e->dma_addr[0];
+		e->buf = NULL;
+	}
 
 	dma_unmap_single(dev->dev, buf_addr, buf_len, DMA_FROM_DEVICE);
-	e->buf = NULL;
+
+	if (info)
+		*info = le32_to_cpu(desc->info);
 
 	return buf;
 }
 
 static void *
 mt76_dma_dequeue(struct mt76_dev *dev, struct mt76_queue *q, bool flush,
-		 int *len, u32 *info, bool *more)
+		 int *len, u32 *info, bool *more, bool *drop)
 {
 	int idx = q->tail;
 
@@ -383,7 +502,7 @@ mt76_dma_dequeue(struct mt76_dev *dev, struct mt76_queue *q, bool flush,
 	q->tail = (q->tail + 1) % q->ndesc;
 	q->queued--;
 
-	return mt76_dma_get_buf(dev, q, idx, len, info, more);
+	return mt76_dma_get_buf(dev, q, idx, len, info, more, drop);
 }
 
 static int
@@ -518,10 +637,16 @@ mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q)
 	int frames = 0;
 	int len = SKB_WITH_OVERHEAD(q->buf_size);
 	int offset = q->buf_offset;
+	int type;
+	struct mtk_wed_device *wed = &dev->mmio.wed;
 
 	if (!q->ndesc)
 		return 0;
 
+	type = FIELD_GET(MT_QFLAG_WED_TYPE, q->flags);
+	if (mtk_wed_device_active(wed) && type == MT76_WED_Q_RX)
+		len = MTK_WED_RX_PKT_SIZE;
+
 	spin_lock_bh(&q->lock);
 
 	while (q->queued < q->ndesc - 1) {
@@ -564,7 +689,7 @@ mt76_dma_rx_cleanup(struct mt76_dev *dev, struct mt76_queue *q)
 
 	spin_lock_bh(&q->lock);
 	do {
-		buf = mt76_dma_dequeue(dev, q, true, NULL, NULL, &more);
+		buf = mt76_dma_dequeue(dev, q, true, NULL, NULL, &more, NULL);
 		if (!buf)
 			break;
 
@@ -646,6 +771,7 @@ mt76_dma_rx_process(struct mt76_dev *dev, struct mt76_queue *q, int budget)
 	}
 
 	while (done < budget) {
+		bool drop = false;
 		u32 info;
 
 		if (check_ddone) {
@@ -656,10 +782,13 @@ mt76_dma_rx_process(struct mt76_dev *dev, struct mt76_queue *q, int budget)
 				break;
 		}
 
-		data = mt76_dma_dequeue(dev, q, false, &len, &info, &more);
+		data = mt76_dma_dequeue(dev, q, false, &len, &info, &more, &drop);
 		if (!data)
 			break;
 
+		if (drop)
+			goto free_frag;
+
 		if (q->rx_head)
 			data_len = q->buf_size;
 		else
diff --git a/dma.h b/dma.h
index fdf786f9..2e2dde6b 100644
--- a/dma.h
+++ b/dma.h
@@ -16,6 +16,14 @@
 #define MT_DMA_CTL_LAST_SEC0		BIT(30)
 #define MT_DMA_CTL_DMA_DONE		BIT(31)
 
+#define MT_DMA_CTL_TO_HOST		BIT(8)
+#define MT_DMA_CTL_TO_HOST_A		BIT(12)
+#define MT_DMA_CTL_DROP			BIT(14)
+
+#define MT_DMA_CTL_TOKEN		GENMASK(31, 16)
+
+#define MT_DMA_INFO_PPE_VLD 		BIT(31)
+
 #define MT_DMA_HDR_LEN			4
 #define MT_RX_INFO_LEN			4
 #define MT_FCE_INFO_LEN			4
diff --git a/mac80211.c b/mac80211.c
index 0c3e3c0c..0dbf2339 100644
--- a/mac80211.c
+++ b/mac80211.c
@@ -552,6 +552,7 @@ mt76_alloc_device(struct device *pdev, unsigned int size,
 
 	spin_lock_init(&dev->rx_lock);
 	spin_lock_init(&dev->lock);
+	spin_lock_init(&dev->wed_lock);
 	spin_lock_init(&dev->cc_lock);
 	spin_lock_init(&dev->status_lock);
 	mutex_init(&dev->mutex);
@@ -574,11 +575,14 @@ mt76_alloc_device(struct device *pdev, unsigned int size,
 		BIT(NL80211_IFTYPE_ADHOC);
 
 	spin_lock_init(&dev->token_lock);
+	spin_lock_init(&dev->rx_token_lock);
 	idr_init(&dev->token);
+	idr_init(&dev->rx_token);
 
 	INIT_LIST_HEAD(&dev->wcid_list);
 
 	INIT_LIST_HEAD(&dev->txwi_cache);
+	INIT_LIST_HEAD(&dev->rxwi_cache);
 	dev->token_size = dev->drv->token_size;
 
 	for (i = 0; i < ARRAY_SIZE(dev->q_rx); i++)
diff --git a/mt76.h b/mt76.h
index f8afd6b5..c1991632 100644
--- a/mt76.h
+++ b/mt76.h
@@ -20,6 +20,8 @@
 
 #define MT_MCU_RING_SIZE	32
 #define MT_RX_BUF_SIZE		2048
+#define MTK_WED_RX_PKT_SIZE	1700
+
 #define MT_SKB_HEAD_LEN		256
 
 #define MT_MAX_NON_AQL_PKT	16
@@ -35,6 +37,7 @@
 				 FIELD_PREP(MT_QFLAG_WED_TYPE, _type) | \
 				 FIELD_PREP(MT_QFLAG_WED_RING, _n))
 #define MT_WED_Q_TX(_n)		__MT_WED_Q(MT76_WED_Q_TX, _n)
+#define MT_WED_Q_RX(_n)		__MT_WED_Q(MT76_WED_Q_RX, _n)
 #define MT_WED_Q_TXFREE		__MT_WED_Q(MT76_WED_Q_TXFREE, 0)
 
 struct mt76_dev;
@@ -56,6 +59,7 @@ enum mt76_bus_type {
 enum mt76_wed_type {
 	MT76_WED_Q_TX,
 	MT76_WED_Q_TXFREE,
+	MT76_WED_Q_RX,
 };
 
 struct mt76_bus_ops {
@@ -305,7 +309,10 @@ struct mt76_txwi_cache {
 	struct list_head list;
 	dma_addr_t dma_addr;
 
-	struct sk_buff *skb;
+	union {
+		void *buf;
+		struct sk_buff *skb;
+	};
 };
 
 struct mt76_rx_tid {
@@ -705,6 +712,7 @@ struct mt76_dev {
 	struct ieee80211_hw *hw;
 
 	spinlock_t lock;
+	spinlock_t wed_lock;
 	spinlock_t cc_lock;
 
 	u32 cur_cc_bss_rx;
@@ -729,6 +737,7 @@ struct mt76_dev {
 	struct sk_buff_head rx_skb[__MT_RXQ_MAX];
 
 	struct list_head txwi_cache;
+	struct list_head rxwi_cache;
 	struct mt76_queue *q_mcu[__MT_MCUQ_MAX];
 	struct mt76_queue q_rx[__MT_RXQ_MAX];
 	const struct mt76_queue_ops *queue_ops;
@@ -741,6 +750,9 @@ struct mt76_dev {
 	struct idr token;
 	u16 token_count;
 	u16 token_size;
+	u16 rx_token_size;
+	spinlock_t rx_token_lock;
+	struct idr rx_token;
 
 	wait_queue_head_t tx_wait;
 	/* spinclock used to protect wcid pktid linked list */
@@ -1251,6 +1263,8 @@ mt76_tx_status_get_hw(struct mt76_dev *dev, struct sk_buff *skb)
 }
 
 void mt76_put_txwi(struct mt76_dev *dev, struct mt76_txwi_cache *t);
+void mt76_put_rxwi(struct mt76_dev *dev, struct mt76_txwi_cache *t);
+struct mt76_txwi_cache *mt76_get_rxwi(struct mt76_dev *dev);
 void mt76_rx_complete(struct mt76_dev *dev, struct sk_buff_head *frames,
 		      struct napi_struct *napi);
 void mt76_rx_poll_complete(struct mt76_dev *dev, enum mt76_rxq_id q,
@@ -1380,6 +1394,10 @@ struct mt76_txwi_cache *
 mt76_token_release(struct mt76_dev *dev, int token, bool *wake);
 int mt76_token_consume(struct mt76_dev *dev, struct mt76_txwi_cache **ptxwi);
 void __mt76_set_tx_blocked(struct mt76_dev *dev, bool blocked);
+int mt76_rx_token_consume(struct mt76_dev *dev, void *ptr,
+			struct mt76_txwi_cache *r, dma_addr_t phys);
+struct mt76_txwi_cache *
+mt76_rx_token_release(struct mt76_dev *dev, int token);
 
 static inline void mt76_set_tx_blocked(struct mt76_dev *dev, bool blocked)
 {
diff --git a/mt76_connac_mcu.c b/mt76_connac_mcu.c
index eeb73d14..7027c7d9 100644
--- a/mt76_connac_mcu.c
+++ b/mt76_connac_mcu.c
@@ -1184,6 +1184,7 @@ int mt76_connac_mcu_sta_ba(struct mt76_dev *dev, struct mt76_vif *mvif,
 			   int cmd, bool enable, bool tx)
 {
 	struct mt76_wcid *wcid = (struct mt76_wcid *)params->sta->drv_priv;
+	struct mtk_wed_device *wed = &dev->mmio.wed;
 	struct wtbl_req_hdr *wtbl_hdr;
 	struct tlv *sta_wtbl;
 	struct sk_buff *skb;
@@ -1204,6 +1205,7 @@ int mt76_connac_mcu_sta_ba(struct mt76_dev *dev, struct mt76_vif *mvif,
 	mt76_connac_mcu_wtbl_ba_tlv(dev, skb, params, enable, tx, sta_wtbl,
 				    wtbl_hdr);
 
+	mtk_wed_device_update_msg(wed, WO_CMD_STA_REC, skb->data, skb->len);
 	ret = mt76_mcu_skb_send_msg(dev, skb, cmd, true);
 	if (ret)
 		return ret;
@@ -1214,6 +1216,7 @@ int mt76_connac_mcu_sta_ba(struct mt76_dev *dev, struct mt76_vif *mvif,
 
 	mt76_connac_mcu_sta_ba_tlv(skb, params, enable, tx);
 
+	mtk_wed_device_update_msg(wed, WO_CMD_STA_REC, skb->data, skb->len);
 	return mt76_mcu_skb_send_msg(dev, skb, cmd, true);
 }
 EXPORT_SYMBOL_GPL(mt76_connac_mcu_sta_ba);
@@ -2629,6 +2632,7 @@ int mt76_connac_mcu_add_key(struct mt76_dev *dev, struct ieee80211_vif *vif,
 			    struct mt76_wcid *wcid, enum set_key_cmd cmd)
 {
 	struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
+	struct mtk_wed_device *wed = &dev->mmio.wed;
 	struct sk_buff *skb;
 	int ret;
 
@@ -2640,6 +2644,9 @@ int mt76_connac_mcu_add_key(struct mt76_dev *dev, struct ieee80211_vif *vif,
 	if (ret)
 		return ret;
 
+	if (mtk_wed_device_active(wed))
+		mtk_wed_device_update_msg(wed, WO_CMD_STA_REC, skb->data, skb->len);
+
 	return mt76_mcu_skb_send_msg(dev, skb, mcu_cmd, true);
 }
 EXPORT_SYMBOL_GPL(mt76_connac_mcu_add_key);
diff --git a/mt7915/dma.c b/mt7915/dma.c
index e782e4e5..608f1ea8 100644
--- a/mt7915/dma.c
+++ b/mt7915/dma.c
@@ -407,6 +407,9 @@ int mt7915_dma_init(struct mt7915_dev *dev)
 
 	/* rx data queue for band0 */
 	if (!dev->phy.band_idx) {
+		if (mtk_wed_device_active(&dev->mt76.mmio.wed))
+			dev->mt76.q_rx[MT_RXQ_MAIN].flags = MT_WED_Q_RX(MT7915_RXQ_BAND0);
+
 		ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN],
 				       MT_RXQ_ID(MT_RXQ_MAIN),
 				       MT7915_RX_RING_SIZE,
@@ -432,6 +435,9 @@ int mt7915_dma_init(struct mt7915_dev *dev)
 
 	if (dev->dbdc_support || dev->phy.band_idx) {
 		/* rx data queue for band1 */
+		if (mtk_wed_device_active(&dev->mt76.mmio.wed))
+			dev->mt76.q_rx[MT_RXQ_EXT].flags = MT_WED_Q_RX(MT7915_RXQ_BAND1);
+
 		ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_EXT],
 				       MT_RXQ_ID(MT_RXQ_EXT),
 				       MT7915_RX_RING_SIZE,
diff --git a/mt7915/mac.c b/mt7915/mac.c
index 12128559..c081bd24 100644
--- a/mt7915/mac.c
+++ b/mt7915/mac.c
@@ -1368,6 +1368,71 @@ u32 mt7915_wed_init_buf(void *ptr, dma_addr_t phys, int token_id)
 	return MT_TXD_TXP_BUF_SIZE;
 }
 
+u32
+mt7915_wed_init_rx_buf(struct mtk_wed_device *wed, int pkt_num)
+{
+	struct mtk_rxbm_desc *desc = wed->rx_buf_ring.desc;
+	struct mt7915_dev *dev;
+	dma_addr_t buf_phys;
+	void *buf;
+	int i, token, buf_size;
+
+	buf_size = SKB_DATA_ALIGN(NET_SKB_PAD + wed->wlan.rx_pkt_size) +
+				  SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+
+	dev = container_of(wed, struct mt7915_dev, mt76.mmio.wed);
+	for (i = 0; i < pkt_num; i++) {
+		struct mt76_txwi_cache *r = mt76_get_rxwi(&dev->mt76);
+
+		buf = page_frag_alloc(&wed->rx_page, buf_size, GFP_ATOMIC);
+		if (!buf)
+			return -ENOMEM;
+
+		buf_phys = dma_map_single(dev->mt76.dev, buf, wed->wlan.rx_pkt_size,
+					  DMA_TO_DEVICE);
+
+		if (unlikely(dma_mapping_error(dev->mt76.dev, buf_phys))) {
+			skb_free_frag(buf);
+			break;
+		}
+
+		desc->buf0 = buf_phys;
+
+		token = mt76_rx_token_consume(&dev->mt76, buf, r, buf_phys);
+
+		desc->token |= FIELD_PREP(MT_DMA_CTL_TOKEN, token);
+		desc++;
+
+		dma_sync_single_for_device(dev->mt76.dev, buf_phys, wed->wlan.rx_pkt_size,
+					   DMA_TO_DEVICE);
+	}
+
+	return 0;
+}
+
+void mt7915_wed_release_rx_buf(struct mtk_wed_device *wed)
+{
+	struct mt76_txwi_cache *rxwi;
+	struct mt7915_dev *dev;
+	int token;
+
+	dev = container_of(wed, struct mt7915_dev, mt76.mmio.wed);
+
+	for(token = 0; token < dev->mt76.rx_token_size; token++) {
+		rxwi = mt76_rx_token_release(&dev->mt76, token);
+		if(!rxwi)
+			continue;
+
+		dma_unmap_single(dev->mt76.dev, rxwi->dma_addr,
+			 wed->wlan.rx_pkt_size, DMA_FROM_DEVICE);
+		skb_free_frag(rxwi->buf);
+		rxwi->buf = NULL;
+
+		mt76_put_rxwi(&dev->mt76, rxwi);
+	}
+	return;
+}
+
 static void
 mt7915_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi)
 {
@@ -1491,6 +1556,7 @@ mt7915_mac_tx_free(struct mt7915_dev *dev, void *data, int len)
 {
 	struct mt7915_tx_free *free = (struct mt7915_tx_free *)data;
 	struct mt76_dev *mdev = &dev->mt76;
+	struct mt76_phy *mphy_ext = mdev->phy2;
 	struct mt76_txwi_cache *txwi;
 	struct ieee80211_sta *sta = NULL;
 	LIST_HEAD(free_list);
diff --git a/mt7915/mcu.c b/mt7915/mcu.c
index 2aba342c..e11a84db 100644
--- a/mt7915/mcu.c
+++ b/mt7915/mcu.c
@@ -1708,6 +1708,7 @@ int mt7915_mcu_add_sta(struct mt7915_dev *dev, struct ieee80211_vif *vif,
 		       struct ieee80211_sta *sta, bool enable)
 {
 	struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
+	struct mtk_wed_device *wed = &dev->mt76.mmio.wed;
 	struct mt7915_sta *msta;
 	struct sk_buff *skb;
 	int ret;
@@ -1759,6 +1760,7 @@ int mt7915_mcu_add_sta(struct mt7915_dev *dev, struct ieee80211_vif *vif,
 		return ret;
 	}
 out:
+	mtk_wed_device_update_msg(wed, WO_CMD_STA_REC, skb->data, skb->len);
 	return mt76_mcu_skb_send_msg(&dev->mt76, skb,
 				     MCU_EXT_CMD(STA_REC_UPDATE), true);
 }
diff --git a/mt7915/mt7915.h b/mt7915/mt7915.h
index 4d979c43..12ba672b 100644
--- a/mt7915/mt7915.h
+++ b/mt7915/mt7915.h
@@ -67,6 +67,7 @@
 #define MT7915_MAX_TWT_AGRT		16
 #define MT7915_MAX_STA_TWT_AGRT		8
 #define MT7915_MAX_QUEUE		(__MT_RXQ_MAX + __MT_MCUQ_MAX + 2)
+#define MT7915_WED_RX_TOKEN_SIZE	12288
 
 struct mt7915_vif;
 struct mt7915_sta;
@@ -431,6 +432,9 @@ struct mt7915_dev *mt7915_mmio_probe(struct device *pdev,
 				     void __iomem *mem_base, u32 device_id);
 u32 mt7915_wed_init_buf(void *ptr, dma_addr_t phys, int token_id);
 irqreturn_t mt7915_irq_handler(int irq, void *dev_instance);
+u32 mt7915_wed_init_rx_buf(struct mtk_wed_device *wed,
+				int pkt_num);
+void mt7915_wed_release_rx_buf(struct mtk_wed_device *wed);
 u64 __mt7915_get_tsf(struct ieee80211_hw *hw, struct mt7915_vif *mvif);
 int mt7915_register_device(struct mt7915_dev *dev);
 void mt7915_unregister_device(struct mt7915_dev *dev);
diff --git a/mt7915/regs.h b/mt7915/regs.h
index b8d9ebfe..9c155f44 100644
--- a/mt7915/regs.h
+++ b/mt7915/regs.h
@@ -540,6 +540,8 @@ enum offs_rev {
 #define MT_WFDMA0_PRI_DLY_INT_CFG1	MT_WFDMA0(0x2f4)
 #define MT_WFDMA0_PRI_DLY_INT_CFG2	MT_WFDMA0(0x2f8)
 
+#define MT_WPDMA_GLO_CFG		MT_WFDMA0(0x208)
+
 /* WFDMA1 */
 #define MT_WFDMA1_BASE			0xd5000
 #define MT_WFDMA1(ofs)			(MT_WFDMA1_BASE + (ofs))
@@ -631,6 +633,7 @@ enum offs_rev {
 
 #define MT_TXQ_WED_RING_BASE		(is_mt7915(mdev)? 0xd7420 : 0x24420)
 #define MT_RXQ_WED_RING_BASE		(is_mt7915(mdev)? 0xd7520 : 0x24520)
+#define MT_RXQ_WED_DATA_RING_BASE	(is_mt7915(mdev)? 0xd7540 : 0x24540)
 
 #define MT_INT_SOURCE_CSR		__REG(INT_SOURCE_CSR)
 #define MT_INT_MASK_CSR			__REG(INT_MASK_CSR)
diff --git a/mt7915/wed.c b/mt7915/wed.c
index bb9e6a65..4fd98a7c 100644
--- a/mt7915/wed.c
+++ b/mt7915/wed.c
@@ -11,24 +11,43 @@
 
 static void mt7915_wed_fill_wlan(struct mtk_wed_device *wed)
 {
+	struct mt7915_dev *dev;
+
+	dev = container_of(wed, struct mt7915_dev, mt76.mmio.wed);
+
 	wed->wlan.nbuf = 7168;
+	wed->wlan.rx_nbuf = 65536;
+	wed->wlan.rx_pkt = MT7915_WED_RX_TOKEN_SIZE;
+	dev->mt76.rx_token_size = MT7915_WED_RX_TOKEN_SIZE + MT7915_RX_RING_SIZE * 2;
 	wed->wlan.token_start = MT7915_TOKEN_SIZE - wed->wlan.nbuf;
+	wed->wlan.rx_pkt_size = MTK_WED_RX_PKT_SIZE;
 	wed->wlan.init_buf = mt7915_wed_init_buf;
+	wed->wlan.init_rx_buf = mt7915_wed_init_rx_buf;
+	wed->wlan.release_rx_buf = mt7915_wed_release_rx_buf;
 }
 
 void
 mt7915_wed_set_soc(struct platform_device *pdev, struct mtk_wed_device *wed,
 			    struct mt7915_dev *dev)
 {
-	struct resource *res;
 	struct mt76_dev *mdev;
+	struct resource *res;
+	u32 base;
 
 	mdev = &dev->mt76;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	wed->wlan.wpdma_phys = res->start + MT_INT_SOURCE_CSR;
-	wed->wlan.wpdma_tx = res->start + MT_TXQ_WED_RING_BASE;
-	wed->wlan.wpdma_txfree = res->start + MT_RXQ_WED_RING_BASE;
+	base = res->start;
+
+	wed->wlan.base = (void __iomem *)ioremap(base, resource_size(res));
+
+	wed->wlan.wpdma_int= base + MT_INT_SOURCE_CSR;
+	wed->wlan.wpdma_mask = base + MT_INT_MASK_CSR;
+	wed->wlan.wpdma_tx = base + MT_TXQ_WED_RING_BASE;
+	wed->wlan.wpdma_txfree = base + MT_RXQ_WED_RING_BASE;
+
+	wed->wlan.wpdma_rx_glo = res->start + MT_WPDMA_GLO_CFG;
+	wed->wlan.wpdma_rx = res->start + MT_RXQ_WED_DATA_RING_BASE;
 
 	mt7915_wed_fill_wlan(wed);
 }
diff --git a/tx.c b/tx.c
index d66fadca..f6e995e5 100644
--- a/tx.c
+++ b/tx.c
@@ -754,3 +754,37 @@ mt76_token_release(struct mt76_dev *dev, int token, bool *wake)
 	return txwi;
 }
 EXPORT_SYMBOL_GPL(mt76_token_release);
+
+int mt76_rx_token_consume(struct mt76_dev *dev, void *ptr,
+			struct mt76_txwi_cache *r, dma_addr_t phys)
+{
+	int token;
+
+	spin_lock_bh(&dev->rx_token_lock);
+
+	token = idr_alloc(&dev->rx_token, r, 0, dev->rx_token_size, GFP_ATOMIC);
+
+	spin_unlock_bh(&dev->rx_token_lock);
+
+	r->buf = ptr;
+	r->dma_addr = phys;
+
+	return token;
+}
+EXPORT_SYMBOL_GPL(mt76_rx_token_consume);
+
+struct mt76_txwi_cache *
+mt76_rx_token_release(struct mt76_dev *dev, int token)
+{
+
+	struct mt76_txwi_cache *rxwi;
+
+	spin_lock_bh(&dev->rx_token_lock);
+
+	rxwi = idr_remove(&dev->rx_token, token);
+
+	spin_unlock_bh(&dev->rx_token_lock);
+
+	return rxwi;
+}
+EXPORT_SYMBOL_GPL(mt76_rx_token_release);
-- 
2.18.0