Merge branch 'add-second-qdma-support-for-en7581-eth-controller'

Lorenzo Bianconi says:

====================
Add second QDMA support for EN7581 eth controller

EN7581 SoC supports two independent QDMA controllers to connect the
Ethernet Frame Engine (FE) to the CPU. Introduce support for the second
QDMA controller. This is a preliminary series to support multiple FE ports
(e.g. connected to a second PHY controller).
====================

Link: https://patch.msgid.link/cover.1722522582.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 263 insertions, 225 deletions

diff --git a/drivers/net/ethernet/mediatek/airoha_eth.c b/drivers/net/ethernet/mediatek/airoha_eth.c
index 1c5b85a86df1..db4267225fa4 100644
--- a/drivers/net/ethernet/mediatek/airoha_eth.c
+++ b/drivers/net/ethernet/mediatek/airoha_eth.c
@@ -18,6 +18,7 @@
 #include <uapi/linux/ppp_defs.h>
 
 #define AIROHA_MAX_NUM_GDM_PORTS	1
+#define AIROHA_MAX_NUM_QDMA		2
 #define AIROHA_MAX_NUM_RSTS		3
 #define AIROHA_MAX_NUM_XSI_RSTS		5
 #define AIROHA_MAX_MTU			2000
@@ -727,7 +728,7 @@ struct airoha_queue_entry {
 };
 
 struct airoha_queue {
-	struct airoha_eth *eth;
+	struct airoha_qdma *qdma;
 
 	/* protect concurrent queue accesses */
 	spinlock_t lock;
@@ -746,7 +747,7 @@ struct airoha_queue {
 };
 
 struct airoha_tx_irq_queue {
-	struct airoha_eth *eth;
+	struct airoha_qdma *qdma;
 
 	struct napi_struct napi;
 	u32 *q;
@@ -782,9 +783,30 @@ struct airoha_hw_stats {
 	u64 rx_len[7];
 };
 
+struct airoha_qdma {
+	struct airoha_eth *eth;
+	void __iomem *regs;
+
+	/* protect concurrent irqmask accesses */
+	spinlock_t irq_lock;
+	u32 irqmask[QDMA_INT_REG_MAX];
+	int irq;
+
+	struct airoha_tx_irq_queue q_tx_irq[AIROHA_NUM_TX_IRQ];
+
+	struct airoha_queue q_tx[AIROHA_NUM_TX_RING];
+	struct airoha_queue q_rx[AIROHA_NUM_RX_RING];
+
+	/* descriptor and packet buffers for qdma hw forward */
+	struct {
+		void *desc;
+		void *q;
+	} hfwd;
+};
+
 struct airoha_gdm_port {
+	struct airoha_qdma *qdma;
 	struct net_device *dev;
-	struct airoha_eth *eth;
 	int id;
 
 	struct airoha_hw_stats stats;
@@ -794,31 +816,15 @@ struct airoha_eth {
 	struct device *dev;
 
 	unsigned long state;
-
-	void __iomem *qdma_regs;
 	void __iomem *fe_regs;
 
-	/* protect concurrent irqmask accesses */
-	spinlock_t irq_lock;
-	u32 irqmask[QDMA_INT_REG_MAX];
-	int irq;
-
 	struct reset_control_bulk_data rsts[AIROHA_MAX_NUM_RSTS];
 	struct reset_control_bulk_data xsi_rsts[AIROHA_MAX_NUM_XSI_RSTS];
 
-	struct airoha_gdm_port *ports[AIROHA_MAX_NUM_GDM_PORTS];
-
 	struct net_device *napi_dev;
-	struct airoha_queue q_tx[AIROHA_NUM_TX_RING];
-	struct airoha_queue q_rx[AIROHA_NUM_RX_RING];
 
-	struct airoha_tx_irq_queue q_tx_irq[AIROHA_NUM_TX_IRQ];
-
-	/* descriptor and packet buffers for qdma hw forward */
-	struct {
-		void *desc;
-		void *q;
-	} hfwd;
+	struct airoha_qdma qdma[AIROHA_MAX_NUM_QDMA];
+	struct airoha_gdm_port *ports[AIROHA_MAX_NUM_GDM_PORTS];
 };
 
 static u32 airoha_rr(void __iomem *base, u32 offset)
@@ -850,48 +856,48 @@ static u32 airoha_rmw(void __iomem *base, u32 offset, u32 mask, u32 val)
 #define airoha_fe_clear(eth, offset, val)			\
 	airoha_rmw((eth)->fe_regs, (offset), (val), 0)
 
-#define airoha_qdma_rr(eth, offset)				\
-	airoha_rr((eth)->qdma_regs, (offset))
-#define airoha_qdma_wr(eth, offset, val)			\
-	airoha_wr((eth)->qdma_regs, (offset), (val))
-#define airoha_qdma_rmw(eth, offset, mask, val)			\
-	airoha_rmw((eth)->qdma_regs, (offset), (mask), (val))
-#define airoha_qdma_set(eth, offset, val)			\
-	airoha_rmw((eth)->qdma_regs, (offset), 0, (val))
-#define airoha_qdma_clear(eth, offset, val)			\
-	airoha_rmw((eth)->qdma_regs, (offset), (val), 0)
-
-static void airoha_qdma_set_irqmask(struct airoha_eth *eth, int index,
+#define airoha_qdma_rr(qdma, offset)				\
+	airoha_rr((qdma)->regs, (offset))
+#define airoha_qdma_wr(qdma, offset, val)			\
+	airoha_wr((qdma)->regs, (offset), (val))
+#define airoha_qdma_rmw(qdma, offset, mask, val)		\
+	airoha_rmw((qdma)->regs, (offset), (mask), (val))
+#define airoha_qdma_set(qdma, offset, val)			\
+	airoha_rmw((qdma)->regs, (offset), 0, (val))
+#define airoha_qdma_clear(qdma, offset, val)			\
+	airoha_rmw((qdma)->regs, (offset), (val), 0)
+
+static void airoha_qdma_set_irqmask(struct airoha_qdma *qdma, int index,
 				    u32 clear, u32 set)
 {
 	unsigned long flags;
 
-	if (WARN_ON_ONCE(index >= ARRAY_SIZE(eth->irqmask)))
+	if (WARN_ON_ONCE(index >= ARRAY_SIZE(qdma->irqmask)))
 		return;
 
-	spin_lock_irqsave(&eth->irq_lock, flags);
+	spin_lock_irqsave(&qdma->irq_lock, flags);
 
-	eth->irqmask[index] &= ~clear;
-	eth->irqmask[index] |= set;
-	airoha_qdma_wr(eth, REG_INT_ENABLE(index), eth->irqmask[index]);
+	qdma->irqmask[index] &= ~clear;
+	qdma->irqmask[index] |= set;
+	airoha_qdma_wr(qdma, REG_INT_ENABLE(index), qdma->irqmask[index]);
 	/* Read irq_enable register in order to guarantee the update above
 	 * completes in the spinlock critical section.
 	 */
-	airoha_qdma_rr(eth, REG_INT_ENABLE(index));
+	airoha_qdma_rr(qdma, REG_INT_ENABLE(index));
 
-	spin_unlock_irqrestore(&eth->irq_lock, flags);
+	spin_unlock_irqrestore(&qdma->irq_lock, flags);
 }
 
-static void airoha_qdma_irq_enable(struct airoha_eth *eth, int index,
+static void airoha_qdma_irq_enable(struct airoha_qdma *qdma, int index,
 				   u32 mask)
 {
-	airoha_qdma_set_irqmask(eth, index, 0, mask);
+	airoha_qdma_set_irqmask(qdma, index, 0, mask);
 }
 
-static void airoha_qdma_irq_disable(struct airoha_eth *eth, int index,
+static void airoha_qdma_irq_disable(struct airoha_qdma *qdma, int index,
 				    u32 mask)
 {
-	airoha_qdma_set_irqmask(eth, index, mask, 0);
+	airoha_qdma_set_irqmask(qdma, index, mask, 0);
 }
 
 static void airoha_set_macaddr(struct airoha_eth *eth, const u8 *addr)
@@ -1383,8 +1389,9 @@ static int airoha_fe_init(struct airoha_eth *eth)
 static int airoha_qdma_fill_rx_queue(struct airoha_queue *q)
 {
 	enum dma_data_direction dir = page_pool_get_dma_dir(q->page_pool);
-	struct airoha_eth *eth = q->eth;
-	int qid = q - &eth->q_rx[0];
+	struct airoha_qdma *qdma = q->qdma;
+	struct airoha_eth *eth = qdma->eth;
+	int qid = q - &qdma->q_rx[0];
 	int nframes = 0;
 
 	while (q->queued < q->ndesc - 1) {
@@ -1420,7 +1427,8 @@ static int airoha_qdma_fill_rx_queue(struct airoha_queue *q)
 		WRITE_ONCE(desc->msg2, 0);
 		WRITE_ONCE(desc->msg3, 0);
 
-		airoha_qdma_rmw(eth, REG_RX_CPU_IDX(qid), RX_RING_CPU_IDX_MASK,
+		airoha_qdma_rmw(qdma, REG_RX_CPU_IDX(qid),
+				RX_RING_CPU_IDX_MASK,
 				FIELD_PREP(RX_RING_CPU_IDX_MASK, q->head));
 	}
 
@@ -1450,8 +1458,9 @@ static int airoha_qdma_get_gdm_port(struct airoha_eth *eth,
 static int airoha_qdma_rx_process(struct airoha_queue *q, int budget)
 {
 	enum dma_data_direction dir = page_pool_get_dma_dir(q->page_pool);
-	struct airoha_eth *eth = q->eth;
-	int qid = q - &eth->q_rx[0];
+	struct airoha_qdma *qdma = q->qdma;
+	struct airoha_eth *eth = qdma->eth;
+	int qid = q - &qdma->q_rx[0];
 	int done = 0;
 
 	while (done < budget) {
@@ -1513,7 +1522,6 @@ static int airoha_qdma_rx_process(struct airoha_queue *q, int budget)
 static int airoha_qdma_rx_napi_poll(struct napi_struct *napi, int budget)
 {
 	struct airoha_queue *q = container_of(napi, struct airoha_queue, napi);
-	struct airoha_eth *eth = q->eth;
 	int cur, done = 0;
 
 	do {
@@ -1522,14 +1530,14 @@ static int airoha_qdma_rx_napi_poll(struct napi_struct *napi, int budget)
 	} while (cur && done < budget);
 
 	if (done < budget && napi_complete(napi))
-		airoha_qdma_irq_enable(eth, QDMA_INT_REG_IDX1,
+		airoha_qdma_irq_enable(q->qdma, QDMA_INT_REG_IDX1,
 				       RX_DONE_INT_MASK);
 
 	return done;
 }
 
-static int airoha_qdma_init_rx_queue(struct airoha_eth *eth,
-				     struct airoha_queue *q, int ndesc)
+static int airoha_qdma_init_rx_queue(struct airoha_queue *q,
+				     struct airoha_qdma *qdma, int ndesc)
 {
 	const struct page_pool_params pp_params = {
 		.order = 0,
@@ -1538,15 +1546,16 @@ static int airoha_qdma_init_rx_queue(struct airoha_eth *eth,
 		.dma_dir = DMA_FROM_DEVICE,
 		.max_len = PAGE_SIZE,
 		.nid = NUMA_NO_NODE,
-		.dev = eth->dev,
+		.dev = qdma->eth->dev,
 		.napi = &q->napi,
 	};
-	int qid = q - &eth->q_rx[0], thr;
+	struct airoha_eth *eth = qdma->eth;
+	int qid = q - &qdma->q_rx[0], thr;
 	dma_addr_t dma_addr;
 
 	q->buf_size = PAGE_SIZE / 2;
 	q->ndesc = ndesc;
-	q->eth = eth;
+	q->qdma = qdma;
 
 	q->entry = devm_kzalloc(eth->dev, q->ndesc * sizeof(*q->entry),
 				GFP_KERNEL);
@@ -1568,14 +1577,15 @@ static int airoha_qdma_init_rx_queue(struct airoha_eth *eth,
 
 	netif_napi_add(eth->napi_dev, &q->napi, airoha_qdma_rx_napi_poll);
 
-	airoha_qdma_wr(eth, REG_RX_RING_BASE(qid), dma_addr);
-	airoha_qdma_rmw(eth, REG_RX_RING_SIZE(qid), RX_RING_SIZE_MASK,
+	airoha_qdma_wr(qdma, REG_RX_RING_BASE(qid), dma_addr);
+	airoha_qdma_rmw(qdma, REG_RX_RING_SIZE(qid),
+			RX_RING_SIZE_MASK,
 			FIELD_PREP(RX_RING_SIZE_MASK, ndesc));
 
 	thr = clamp(ndesc >> 3, 1, 32);
-	airoha_qdma_rmw(eth, REG_RX_RING_SIZE(qid), RX_RING_THR_MASK,
+	airoha_qdma_rmw(qdma, REG_RX_RING_SIZE(qid), RX_RING_THR_MASK,
 			FIELD_PREP(RX_RING_THR_MASK, thr));
-	airoha_qdma_rmw(eth, REG_RX_DMA_IDX(qid), RX_RING_DMA_IDX_MASK,
+	airoha_qdma_rmw(qdma, REG_RX_DMA_IDX(qid), RX_RING_DMA_IDX_MASK,
 			FIELD_PREP(RX_RING_DMA_IDX_MASK, q->head));
 
 	airoha_qdma_fill_rx_queue(q);
@@ -1585,7 +1595,7 @@ static int airoha_qdma_init_rx_queue(struct airoha_eth *eth,
 
 static void airoha_qdma_cleanup_rx_queue(struct airoha_queue *q)
 {
-	struct airoha_eth *eth = q->eth;
+	struct airoha_eth *eth = q->qdma->eth;
 
 	while (q->queued) {
 		struct airoha_queue_entry *e = &q->entry[q->tail];
@@ -1599,11 +1609,11 @@ static void airoha_qdma_cleanup_rx_queue(struct airoha_queue *q)
 	}
 }
 
-static int airoha_qdma_init_rx(struct airoha_eth *eth)
+static int airoha_qdma_init_rx(struct airoha_qdma *qdma)
 {
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(eth->q_rx); i++) {
+	for (i = 0; i < ARRAY_SIZE(qdma->q_rx); i++) {
 		int err;
 
 		if (!(RX_DONE_INT_MASK & BIT(i))) {
@@ -1611,7 +1621,7 @@ static int airoha_qdma_init_rx(struct airoha_eth *eth)
 			continue;
 		}
 
-		err = airoha_qdma_init_rx_queue(eth, &eth->q_rx[i],
+		err = airoha_qdma_init_rx_queue(&qdma->q_rx[i], qdma,
 						RX_DSCP_NUM(i));
 		if (err)
 			return err;
@@ -1623,12 +1633,14 @@ static int airoha_qdma_init_rx(struct airoha_eth *eth)
 static int airoha_qdma_tx_napi_poll(struct napi_struct *napi, int budget)
 {
 	struct airoha_tx_irq_queue *irq_q;
+	struct airoha_qdma *qdma;
 	struct airoha_eth *eth;
 	int id, done = 0;
 
 	irq_q = container_of(napi, struct airoha_tx_irq_queue, napi);
-	eth = irq_q->eth;
-	id = irq_q - &eth->q_tx_irq[0];
+	qdma = irq_q->qdma;
+	id = irq_q - &qdma->q_tx_irq[0];
+	eth = qdma->eth;
 
 	while (irq_q->queued > 0 && done < budget) {
 		u32 qid, last, val = irq_q->q[irq_q->head];
@@ -1645,10 +1657,10 @@ static int airoha_qdma_tx_napi_poll(struct napi_struct *napi, int budget)
 		last = FIELD_GET(IRQ_DESC_IDX_MASK, val);
 		qid = FIELD_GET(IRQ_RING_IDX_MASK, val);
 
-		if (qid >= ARRAY_SIZE(eth->q_tx))
+		if (qid >= ARRAY_SIZE(qdma->q_tx))
 			continue;
 
-		q = &eth->q_tx[qid];
+		q = &qdma->q_tx[qid];
 		if (!q->ndesc)
 			continue;
 
@@ -1697,28 +1709,29 @@ static int airoha_qdma_tx_napi_poll(struct napi_struct *napi, int budget)
 		int i, len = done >> 7;
 
 		for (i = 0; i < len; i++)
-			airoha_qdma_rmw(eth, REG_IRQ_CLEAR_LEN(id),
+			airoha_qdma_rmw(qdma, REG_IRQ_CLEAR_LEN(id),
 					IRQ_CLEAR_LEN_MASK, 0x80);
-		airoha_qdma_rmw(eth, REG_IRQ_CLEAR_LEN(id),
+		airoha_qdma_rmw(qdma, REG_IRQ_CLEAR_LEN(id),
 				IRQ_CLEAR_LEN_MASK, (done & 0x7f));
 	}
 
 	if (done < budget && napi_complete(napi))
-		airoha_qdma_irq_enable(eth, QDMA_INT_REG_IDX0,
+		airoha_qdma_irq_enable(qdma, QDMA_INT_REG_IDX0,
 				       TX_DONE_INT_MASK(id));
 
 	return done;
 }
 
-static int airoha_qdma_init_tx_queue(struct airoha_eth *eth,
-				     struct airoha_queue *q, int size)
+static int airoha_qdma_init_tx_queue(struct airoha_queue *q,
+				     struct airoha_qdma *qdma, int size)
 {
-	int i, qid = q - &eth->q_tx[0];
+	struct airoha_eth *eth = qdma->eth;
+	int i, qid = q - &qdma->q_tx[0];
 	dma_addr_t dma_addr;
 
 	spin_lock_init(&q->lock);
 	q->ndesc = size;
-	q->eth = eth;
+	q->qdma = qdma;
 	q->free_thr = 1 + MAX_SKB_FRAGS;
 
 	q->entry = devm_kzalloc(eth->dev, q->ndesc * sizeof(*q->entry),
@@ -1738,20 +1751,20 @@ static int airoha_qdma_init_tx_queue(struct airoha_eth *eth,
 		WRITE_ONCE(q->desc[i].ctrl, cpu_to_le32(val));
 	}
 
-	airoha_qdma_wr(eth, REG_TX_RING_BASE(qid), dma_addr);
-	airoha_qdma_rmw(eth, REG_TX_CPU_IDX(qid), TX_RING_CPU_IDX_MASK,
+	airoha_qdma_wr(qdma, REG_TX_RING_BASE(qid), dma_addr);
+	airoha_qdma_rmw(qdma, REG_TX_CPU_IDX(qid), TX_RING_CPU_IDX_MASK,
 			FIELD_PREP(TX_RING_CPU_IDX_MASK, q->head));
-	airoha_qdma_rmw(eth, REG_TX_DMA_IDX(qid), TX_RING_DMA_IDX_MASK,
+	airoha_qdma_rmw(qdma, REG_TX_DMA_IDX(qid), TX_RING_DMA_IDX_MASK,
 			FIELD_PREP(TX_RING_DMA_IDX_MASK, q->head));
 
 	return 0;
 }
 
-static int airoha_qdma_tx_irq_init(struct airoha_eth *eth,
-				   struct airoha_tx_irq_queue *irq_q,
-				   int size)
+static int airoha_qdma_tx_irq_init(struct airoha_tx_irq_queue *irq_q,
+				   struct airoha_qdma *qdma, int size)
 {
-	int id = irq_q - &eth->q_tx_irq[0];
+	int id = irq_q - &qdma->q_tx_irq[0];
+	struct airoha_eth *eth = qdma->eth;
 	dma_addr_t dma_addr;
 
 	netif_napi_add_tx(eth->napi_dev, &irq_q->napi,
@@ -1763,30 +1776,30 @@ static int airoha_qdma_tx_irq_init(struct airoha_eth *eth,
 
 	memset(irq_q->q, 0xff, size * sizeof(u32));
 	irq_q->size = size;
-	irq_q->eth = eth;
+	irq_q->qdma = qdma;
 
-	airoha_qdma_wr(eth, REG_TX_IRQ_BASE(id), dma_addr);
-	airoha_qdma_rmw(eth, REG_TX_IRQ_CFG(id), TX_IRQ_DEPTH_MASK,
+	airoha_qdma_wr(qdma, REG_TX_IRQ_BASE(id), dma_addr);
+	airoha_qdma_rmw(qdma, REG_TX_IRQ_CFG(id), TX_IRQ_DEPTH_MASK,
 			FIELD_PREP(TX_IRQ_DEPTH_MASK, size));
-	airoha_qdma_rmw(eth, REG_TX_IRQ_CFG(id), TX_IRQ_THR_MASK,
+	airoha_qdma_rmw(qdma, REG_TX_IRQ_CFG(id), TX_IRQ_THR_MASK,
 			FIELD_PREP(TX_IRQ_THR_MASK, 1));
 
 	return 0;
 }
 
-static int airoha_qdma_init_tx(struct airoha_eth *eth)
+static int airoha_qdma_init_tx(struct airoha_qdma *qdma)
 {
 	int i, err;
 
-	for (i = 0; i < ARRAY_SIZE(eth->q_tx_irq); i++) {
-		err = airoha_qdma_tx_irq_init(eth, &eth->q_tx_irq[i],
+	for (i = 0; i < ARRAY_SIZE(qdma->q_tx_irq); i++) {
+		err = airoha_qdma_tx_irq_init(&qdma->q_tx_irq[i], qdma,
 					      IRQ_QUEUE_LEN(i));
 		if (err)
 			return err;
 	}
 
-	for (i = 0; i < ARRAY_SIZE(eth->q_tx); i++) {
-		err = airoha_qdma_init_tx_queue(eth, &eth->q_tx[i],
+	for (i = 0; i < ARRAY_SIZE(qdma->q_tx); i++) {
+		err = airoha_qdma_init_tx_queue(&qdma->q_tx[i], qdma,
 						TX_DSCP_NUM);
 		if (err)
 			return err;
@@ -1797,7 +1810,7 @@ static int airoha_qdma_init_tx(struct airoha_eth *eth)
 
 static void airoha_qdma_cleanup_tx_queue(struct airoha_queue *q)
 {
-	struct airoha_eth *eth = q->eth;
+	struct airoha_eth *eth = q->qdma->eth;
 
 	spin_lock_bh(&q->lock);
 	while (q->queued) {
@@ -1814,34 +1827,35 @@ static void airoha_qdma_cleanup_tx_queue(struct airoha_queue *q)
 	spin_unlock_bh(&q->lock);
 }
 
-static int airoha_qdma_init_hfwd_queues(struct airoha_eth *eth)
+static int airoha_qdma_init_hfwd_queues(struct airoha_qdma *qdma)
 {
+	struct airoha_eth *eth = qdma->eth;
 	dma_addr_t dma_addr;
 	u32 status;
 	int size;
 
 	size = HW_DSCP_NUM * sizeof(struct airoha_qdma_fwd_desc);
-	eth->hfwd.desc = dmam_alloc_coherent(eth->dev, size, &dma_addr,
-					     GFP_KERNEL);
-	if (!eth->hfwd.desc)
+	qdma->hfwd.desc = dmam_alloc_coherent(eth->dev, size, &dma_addr,
+					      GFP_KERNEL);
+	if (!qdma->hfwd.desc)
 		return -ENOMEM;
 
-	airoha_qdma_wr(eth, REG_FWD_DSCP_BASE, dma_addr);
+	airoha_qdma_wr(qdma, REG_FWD_DSCP_BASE, dma_addr);
 
 	size = AIROHA_MAX_PACKET_SIZE * HW_DSCP_NUM;
-	eth->hfwd.q = dmam_alloc_coherent(eth->dev, size, &dma_addr,
-					  GFP_KERNEL);
-	if (!eth->hfwd.q)
+	qdma->hfwd.q = dmam_alloc_coherent(eth->dev, size, &dma_addr,
+					   GFP_KERNEL);
+	if (!qdma->hfwd.q)
 		return -ENOMEM;
 
-	airoha_qdma_wr(eth, REG_FWD_BUF_BASE, dma_addr);
+	airoha_qdma_wr(qdma, REG_FWD_BUF_BASE, dma_addr);
 
-	airoha_qdma_rmw(eth, REG_HW_FWD_DSCP_CFG,
+	airoha_qdma_rmw(qdma, REG_HW_FWD_DSCP_CFG,
 			HW_FWD_DSCP_PAYLOAD_SIZE_MASK,
 			FIELD_PREP(HW_FWD_DSCP_PAYLOAD_SIZE_MASK, 0));
-	airoha_qdma_rmw(eth, REG_FWD_DSCP_LOW_THR, FWD_DSCP_LOW_THR_MASK,
+	airoha_qdma_rmw(qdma, REG_FWD_DSCP_LOW_THR, FWD_DSCP_LOW_THR_MASK,
 			FIELD_PREP(FWD_DSCP_LOW_THR_MASK, 128));
-	airoha_qdma_rmw(eth, REG_LMGR_INIT_CFG,
+	airoha_qdma_rmw(qdma, REG_LMGR_INIT_CFG,
 			LMGR_INIT_START | LMGR_SRAM_MODE_MASK |
 			HW_FWD_DESC_NUM_MASK,
 			FIELD_PREP(HW_FWD_DESC_NUM_MASK, HW_DSCP_NUM) |
@@ -1849,87 +1863,87 @@ static int airoha_qdma_init_hfwd_queues(struct airoha_eth *eth)
 
 	return read_poll_timeout(airoha_qdma_rr, status,
 				 !(status & LMGR_INIT_START), USEC_PER_MSEC,
-				 30 * USEC_PER_MSEC, true, eth,
+				 30 * USEC_PER_MSEC, true, qdma,
 				 REG_LMGR_INIT_CFG);
 }
 
-static void airoha_qdma_init_qos(struct airoha_eth *eth)
+static void airoha_qdma_init_qos(struct airoha_qdma *qdma)
 {
-	airoha_qdma_clear(eth, REG_TXWRR_MODE_CFG, TWRR_WEIGHT_SCALE_MASK);
-	airoha_qdma_set(eth, REG_TXWRR_MODE_CFG, TWRR_WEIGHT_BASE_MASK);
+	airoha_qdma_clear(qdma, REG_TXWRR_MODE_CFG, TWRR_WEIGHT_SCALE_MASK);
+	airoha_qdma_set(qdma, REG_TXWRR_MODE_CFG, TWRR_WEIGHT_BASE_MASK);
 
-	airoha_qdma_clear(eth, REG_PSE_BUF_USAGE_CFG,
+	airoha_qdma_clear(qdma, REG_PSE_BUF_USAGE_CFG,
 			  PSE_BUF_ESTIMATE_EN_MASK);
 
-	airoha_qdma_set(eth, REG_EGRESS_RATE_METER_CFG,
+	airoha_qdma_set(qdma, REG_EGRESS_RATE_METER_CFG,
 			EGRESS_RATE_METER_EN_MASK |
 			EGRESS_RATE_METER_EQ_RATE_EN_MASK);
 	/* 2047us x 31 = 63.457ms */
-	airoha_qdma_rmw(eth, REG_EGRESS_RATE_METER_CFG,
+	airoha_qdma_rmw(qdma, REG_EGRESS_RATE_METER_CFG,
 			EGRESS_RATE_METER_WINDOW_SZ_MASK,
 			FIELD_PREP(EGRESS_RATE_METER_WINDOW_SZ_MASK, 0x1f));
-	airoha_qdma_rmw(eth, REG_EGRESS_RATE_METER_CFG,
+	airoha_qdma_rmw(qdma, REG_EGRESS_RATE_METER_CFG,
 			EGRESS_RATE_METER_TIMESLICE_MASK,
 			FIELD_PREP(EGRESS_RATE_METER_TIMESLICE_MASK, 0x7ff));
 
 	/* ratelimit init */
-	airoha_qdma_set(eth, REG_GLB_TRTCM_CFG, GLB_TRTCM_EN_MASK);
+	airoha_qdma_set(qdma, REG_GLB_TRTCM_CFG, GLB_TRTCM_EN_MASK);
 	/* fast-tick 25us */
-	airoha_qdma_rmw(eth, REG_GLB_TRTCM_CFG, GLB_FAST_TICK_MASK,
+	airoha_qdma_rmw(qdma, REG_GLB_TRTCM_CFG, GLB_FAST_TICK_MASK,
 			FIELD_PREP(GLB_FAST_TICK_MASK, 25));
-	airoha_qdma_rmw(eth, REG_GLB_TRTCM_CFG, GLB_SLOW_TICK_RATIO_MASK,
+	airoha_qdma_rmw(qdma, REG_GLB_TRTCM_CFG, GLB_SLOW_TICK_RATIO_MASK,
 			FIELD_PREP(GLB_SLOW_TICK_RATIO_MASK, 40));
 
-	airoha_qdma_set(eth, REG_EGRESS_TRTCM_CFG, EGRESS_TRTCM_EN_MASK);
-	airoha_qdma_rmw(eth, REG_EGRESS_TRTCM_CFG, EGRESS_FAST_TICK_MASK,
+	airoha_qdma_set(qdma, REG_EGRESS_TRTCM_CFG, EGRESS_TRTCM_EN_MASK);
+	airoha_qdma_rmw(qdma, REG_EGRESS_TRTCM_CFG, EGRESS_FAST_TICK_MASK,
 			FIELD_PREP(EGRESS_FAST_TICK_MASK, 25));
-	airoha_qdma_rmw(eth, REG_EGRESS_TRTCM_CFG,
+	airoha_qdma_rmw(qdma, REG_EGRESS_TRTCM_CFG,
 			EGRESS_SLOW_TICK_RATIO_MASK,
 			FIELD_PREP(EGRESS_SLOW_TICK_RATIO_MASK, 40));
 
-	airoha_qdma_set(eth, REG_INGRESS_TRTCM_CFG, INGRESS_TRTCM_EN_MASK);
-	airoha_qdma_clear(eth, REG_INGRESS_TRTCM_CFG,
+	airoha_qdma_set(qdma, REG_INGRESS_TRTCM_CFG, INGRESS_TRTCM_EN_MASK);
+	airoha_qdma_clear(qdma, REG_INGRESS_TRTCM_CFG,
 			  INGRESS_TRTCM_MODE_MASK);
-	airoha_qdma_rmw(eth, REG_INGRESS_TRTCM_CFG, INGRESS_FAST_TICK_MASK,
+	airoha_qdma_rmw(qdma, REG_INGRESS_TRTCM_CFG, INGRESS_FAST_TICK_MASK,
 			FIELD_PREP(INGRESS_FAST_TICK_MASK, 125));
-	airoha_qdma_rmw(eth, REG_INGRESS_TRTCM_CFG,
+	airoha_qdma_rmw(qdma, REG_INGRESS_TRTCM_CFG,
 			INGRESS_SLOW_TICK_RATIO_MASK,
 			FIELD_PREP(INGRESS_SLOW_TICK_RATIO_MASK, 8));
 
-	airoha_qdma_set(eth, REG_SLA_TRTCM_CFG, SLA_TRTCM_EN_MASK);
-	airoha_qdma_rmw(eth, REG_SLA_TRTCM_CFG, SLA_FAST_TICK_MASK,
+	airoha_qdma_set(qdma, REG_SLA_TRTCM_CFG, SLA_TRTCM_EN_MASK);
+	airoha_qdma_rmw(qdma, REG_SLA_TRTCM_CFG, SLA_FAST_TICK_MASK,
 			FIELD_PREP(SLA_FAST_TICK_MASK, 25));
-	airoha_qdma_rmw(eth, REG_SLA_TRTCM_CFG, SLA_SLOW_TICK_RATIO_MASK,
+	airoha_qdma_rmw(qdma, REG_SLA_TRTCM_CFG, SLA_SLOW_TICK_RATIO_MASK,
 			FIELD_PREP(SLA_SLOW_TICK_RATIO_MASK, 40));
 }
 
-static int airoha_qdma_hw_init(struct airoha_eth *eth)
+static int airoha_qdma_hw_init(struct airoha_qdma *qdma)
 {
 	int i;
 
 	/* clear pending irqs */
-	for (i = 0; i < ARRAY_SIZE(eth->irqmask); i++)
-		airoha_qdma_wr(eth, REG_INT_STATUS(i), 0xffffffff);
+	for (i = 0; i < ARRAY_SIZE(qdma->irqmask); i++)
+		airoha_qdma_wr(qdma, REG_INT_STATUS(i), 0xffffffff);
 
 	/* setup irqs */
-	airoha_qdma_irq_enable(eth, QDMA_INT_REG_IDX0, INT_IDX0_MASK);
-	airoha_qdma_irq_enable(eth, QDMA_INT_REG_IDX1, INT_IDX1_MASK);
-	airoha_qdma_irq_enable(eth, QDMA_INT_REG_IDX4, INT_IDX4_MASK);
+	airoha_qdma_irq_enable(qdma, QDMA_INT_REG_IDX0, INT_IDX0_MASK);
+	airoha_qdma_irq_enable(qdma, QDMA_INT_REG_IDX1, INT_IDX1_MASK);
+	airoha_qdma_irq_enable(qdma, QDMA_INT_REG_IDX4, INT_IDX4_MASK);
 
 	/* setup irq binding */
-	for (i = 0; i < ARRAY_SIZE(eth->q_tx); i++) {
-		if (!eth->q_tx[i].ndesc)
+	for (i = 0; i < ARRAY_SIZE(qdma->q_tx); i++) {
+		if (!qdma->q_tx[i].ndesc)
 			continue;
 
 		if (TX_RING_IRQ_BLOCKING_MAP_MASK & BIT(i))
-			airoha_qdma_set(eth, REG_TX_RING_BLOCKING(i),
+			airoha_qdma_set(qdma, REG_TX_RING_BLOCKING(i),
 					TX_RING_IRQ_BLOCKING_CFG_MASK);
 		else
-			airoha_qdma_clear(eth, REG_TX_RING_BLOCKING(i),
+			airoha_qdma_clear(qdma, REG_TX_RING_BLOCKING(i),
 					  TX_RING_IRQ_BLOCKING_CFG_MASK);
 	}
 
-	airoha_qdma_wr(eth, REG_QDMA_GLOBAL_CFG,
+	airoha_qdma_wr(qdma, REG_QDMA_GLOBAL_CFG,
 		       GLOBAL_CFG_RX_2B_OFFSET_MASK |
 		       FIELD_PREP(GLOBAL_CFG_DMA_PREFERENCE_MASK, 3) |
 		       GLOBAL_CFG_CPU_TXR_RR_MASK |
@@ -1940,18 +1954,18 @@ static int airoha_qdma_hw_init(struct airoha_eth *eth)
 		       GLOBAL_CFG_TX_WB_DONE_MASK |
 		       FIELD_PREP(GLOBAL_CFG_MAX_ISSUE_NUM_MASK, 2));
 
-	airoha_qdma_init_qos(eth);
+	airoha_qdma_init_qos(qdma);
 
 	/* disable qdma rx delay interrupt */
-	for (i = 0; i < ARRAY_SIZE(eth->q_rx); i++) {
-		if (!eth->q_rx[i].ndesc)
+	for (i = 0; i < ARRAY_SIZE(qdma->q_rx); i++) {
+		if (!qdma->q_rx[i].ndesc)
 			continue;
 
-		airoha_qdma_clear(eth, REG_RX_DELAY_INT_IDX(i),
+		airoha_qdma_clear(qdma, REG_RX_DELAY_INT_IDX(i),
 				  RX_DELAY_INT_MASK);
 	}
 
-	airoha_qdma_set(eth, REG_TXQ_CNGST_CFG,
+	airoha_qdma_set(qdma, REG_TXQ_CNGST_CFG,
 			TXQ_CNGST_DROP_EN | TXQ_CNGST_DEI_DROP_EN);
 
 	return 0;
@@ -1959,88 +1973,102 @@ static int airoha_qdma_hw_init(struct airoha_eth *eth)
 
 static irqreturn_t airoha_irq_handler(int irq, void *dev_instance)
 {
-	struct airoha_eth *eth = dev_instance;
-	u32 intr[ARRAY_SIZE(eth->irqmask)];
+	struct airoha_qdma *qdma = dev_instance;
+	u32 intr[ARRAY_SIZE(qdma->irqmask)];
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(eth->irqmask); i++) {
-		intr[i] = airoha_qdma_rr(eth, REG_INT_STATUS(i));
-		intr[i] &= eth->irqmask[i];
-		airoha_qdma_wr(eth, REG_INT_STATUS(i), intr[i]);
+	for (i = 0; i < ARRAY_SIZE(qdma->irqmask); i++) {
+		intr[i] = airoha_qdma_rr(qdma, REG_INT_STATUS(i));
+		intr[i] &= qdma->irqmask[i];
+		airoha_qdma_wr(qdma, REG_INT_STATUS(i), intr[i]);
 	}
 
-	if (!test_bit(DEV_STATE_INITIALIZED, &eth->state))
+	if (!test_bit(DEV_STATE_INITIALIZED, &qdma->eth->state))
 		return IRQ_NONE;
 
 	if (intr[1] & RX_DONE_INT_MASK) {
-		airoha_qdma_irq_disable(eth, QDMA_INT_REG_IDX1,
+		airoha_qdma_irq_disable(qdma, QDMA_INT_REG_IDX1,
 					RX_DONE_INT_MASK);
 
-		for (i = 0; i < ARRAY_SIZE(eth->q_rx); i++) {
-			if (!eth->q_rx[i].ndesc)
+		for (i = 0; i < ARRAY_SIZE(qdma->q_rx); i++) {
+			if (!qdma->q_rx[i].ndesc)
 				continue;
 
 			if (intr[1] & BIT(i))
-				napi_schedule(&eth->q_rx[i].napi);
+				napi_schedule(&qdma->q_rx[i].napi);
 		}
 	}
 
 	if (intr[0] & INT_TX_MASK) {
-		for (i = 0; i < ARRAY_SIZE(eth->q_tx_irq); i++) {
-			struct airoha_tx_irq_queue *irq_q = &eth->q_tx_irq[i];
+		for (i = 0; i < ARRAY_SIZE(qdma->q_tx_irq); i++) {
+			struct airoha_tx_irq_queue *irq_q = &qdma->q_tx_irq[i];
 			u32 status, head;
 
 			if (!(intr[0] & TX_DONE_INT_MASK(i)))
 				continue;
 
-			airoha_qdma_irq_disable(eth, QDMA_INT_REG_IDX0,
+			airoha_qdma_irq_disable(qdma, QDMA_INT_REG_IDX0,
 						TX_DONE_INT_MASK(i));
 
-			status = airoha_qdma_rr(eth, REG_IRQ_STATUS(i));
+			status = airoha_qdma_rr(qdma, REG_IRQ_STATUS(i));
 			head = FIELD_GET(IRQ_HEAD_IDX_MASK, status);
 			irq_q->head = head % irq_q->size;
 			irq_q->queued = FIELD_GET(IRQ_ENTRY_LEN_MASK, status);
 
-			napi_schedule(&eth->q_tx_irq[i].napi);
+			napi_schedule(&qdma->q_tx_irq[i].napi);
 		}
 	}
 
 	return IRQ_HANDLED;
 }
 
-static int airoha_qdma_init(struct airoha_eth *eth)
+static int airoha_qdma_init(struct platform_device *pdev,
+			    struct airoha_eth *eth,
+			    struct airoha_qdma *qdma)
 {
-	int err;
+	int err, id = qdma - &eth->qdma[0];
+	const char *res;
 
-	err = devm_request_irq(eth->dev, eth->irq, airoha_irq_handler,
-			       IRQF_SHARED, KBUILD_MODNAME, eth);
-	if (err)
-		return err;
+	spin_lock_init(&qdma->irq_lock);
+	qdma->eth = eth;
+
+	res = devm_kasprintf(eth->dev, GFP_KERNEL, "qdma%d", id);
+	if (!res)
+		return -ENOMEM;
+
+	qdma->regs = devm_platform_ioremap_resource_byname(pdev, res);
+	if (IS_ERR(qdma->regs))
+		return dev_err_probe(eth->dev, PTR_ERR(qdma->regs),
+				     "failed to iomap qdma%d regs\n", id);
 
-	err = airoha_qdma_init_rx(eth);
+	qdma->irq = platform_get_irq(pdev, 4 * id);
+	if (qdma->irq < 0)
+		return qdma->irq;
+
+	err = devm_request_irq(eth->dev, qdma->irq, airoha_irq_handler,
+			       IRQF_SHARED, KBUILD_MODNAME, qdma);
 	if (err)
 		return err;
 
-	err = airoha_qdma_init_tx(eth);
+	err = airoha_qdma_init_rx(qdma);
 	if (err)
 		return err;
 
-	err = airoha_qdma_init_hfwd_queues(eth);
+	err = airoha_qdma_init_tx(qdma);
 	if (err)
 		return err;
 
-	err = airoha_qdma_hw_init(eth);
+	err = airoha_qdma_init_hfwd_queues(qdma);
 	if (err)
 		return err;
 
-	set_bit(DEV_STATE_INITIALIZED, &eth->state);
-
-	return 0;
+	return airoha_qdma_hw_init(qdma);
 }
 
-static int airoha_hw_init(struct airoha_eth *eth)
+static int airoha_hw_init(struct platform_device *pdev,
+			  struct airoha_eth *eth)
 {
-	int err;
+	int err, i;
 
 	/* disable xsi */
 	reset_control_bulk_assert(ARRAY_SIZE(eth->xsi_rsts), eth->xsi_rsts);
@@ -2054,55 +2082,63 @@ static int airoha_hw_init(struct airoha_eth *eth)
 	if (err)
 		return err;
 
-	return airoha_qdma_init(eth);
+	for (i = 0; i < ARRAY_SIZE(eth->qdma); i++) {
+		err = airoha_qdma_init(pdev, eth, &eth->qdma[i]);
+		if (err)
+			return err;
+	}
+
+	set_bit(DEV_STATE_INITIALIZED, &eth->state);
+
+	return 0;
 }
 
-static void airoha_hw_cleanup(struct airoha_eth *eth)
+static void airoha_hw_cleanup(struct airoha_qdma *qdma)
 {
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(eth->q_rx); i++) {
-		if (!eth->q_rx[i].ndesc)
+	for (i = 0; i < ARRAY_SIZE(qdma->q_rx); i++) {
+		if (!qdma->q_rx[i].ndesc)
 			continue;
 
-		napi_disable(&eth->q_rx[i].napi);
-		netif_napi_del(&eth->q_rx[i].napi);
-		airoha_qdma_cleanup_rx_queue(&eth->q_rx[i]);
-		if (eth->q_rx[i].page_pool)
-			page_pool_destroy(eth->q_rx[i].page_pool);
+		napi_disable(&qdma->q_rx[i].napi);
+		netif_napi_del(&qdma->q_rx[i].napi);
+		airoha_qdma_cleanup_rx_queue(&qdma->q_rx[i]);
+		if (qdma->q_rx[i].page_pool)
+			page_pool_destroy(qdma->q_rx[i].page_pool);
 	}
 
-	for (i = 0; i < ARRAY_SIZE(eth->q_tx_irq); i++) {
-		napi_disable(&eth->q_tx_irq[i].napi);
-		netif_napi_del(&eth->q_tx_irq[i].napi);
+	for (i = 0; i < ARRAY_SIZE(qdma->q_tx_irq); i++) {
+		napi_disable(&qdma->q_tx_irq[i].napi);
+		netif_napi_del(&qdma->q_tx_irq[i].napi);
 	}
 
-	for (i = 0; i < ARRAY_SIZE(eth->q_tx); i++) {
-		if (!eth->q_tx[i].ndesc)
+	for (i = 0; i < ARRAY_SIZE(qdma->q_tx); i++) {
+		if (!qdma->q_tx[i].ndesc)
 			continue;
 
-		airoha_qdma_cleanup_tx_queue(&eth->q_tx[i]);
+		airoha_qdma_cleanup_tx_queue(&qdma->q_tx[i]);
 	}
 }
 
-static void airoha_qdma_start_napi(struct airoha_eth *eth)
+static void airoha_qdma_start_napi(struct airoha_qdma *qdma)
 {
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(eth->q_tx_irq); i++)
-		napi_enable(&eth->q_tx_irq[i].napi);
+	for (i = 0; i < ARRAY_SIZE(qdma->q_tx_irq); i++)
+		napi_enable(&qdma->q_tx_irq[i].napi);
 
-	for (i = 0; i < ARRAY_SIZE(eth->q_rx); i++) {
-		if (!eth->q_rx[i].ndesc)
+	for (i = 0; i < ARRAY_SIZE(qdma->q_rx); i++) {
+		if (!qdma->q_rx[i].ndesc)
 			continue;
 
-		napi_enable(&eth->q_rx[i].napi);
+		napi_enable(&qdma->q_rx[i].napi);
 	}
 }
 
 static void airoha_update_hw_stats(struct airoha_gdm_port *port)
 {
-	struct airoha_eth *eth = port->eth;
+	struct airoha_eth *eth = port->qdma->eth;
 	u32 val, i = 0;
 
 	spin_lock(&port->stats.lock);
@@ -2247,23 +2283,24 @@ static void airoha_update_hw_stats(struct airoha_gdm_port *port)
 static int airoha_dev_open(struct net_device *dev)
 {
 	struct airoha_gdm_port *port = netdev_priv(dev);
-	struct airoha_eth *eth = port->eth;
+	struct airoha_qdma *qdma = port->qdma;
 	int err;
 
 	netif_tx_start_all_queues(dev);
-	err = airoha_set_gdm_ports(eth, true);
+	err = airoha_set_gdm_ports(qdma->eth, true);
 	if (err)
 		return err;
 
 	if (netdev_uses_dsa(dev))
-		airoha_fe_set(eth, REG_GDM_INGRESS_CFG(port->id),
+		airoha_fe_set(qdma->eth, REG_GDM_INGRESS_CFG(port->id),
 			      GDM_STAG_EN_MASK);
 	else
-		airoha_fe_clear(eth, REG_GDM_INGRESS_CFG(port->id),
+		airoha_fe_clear(qdma->eth, REG_GDM_INGRESS_CFG(port->id),
 				GDM_STAG_EN_MASK);
 
-	airoha_qdma_set(eth, REG_QDMA_GLOBAL_CFG, GLOBAL_CFG_TX_DMA_EN_MASK);
-	airoha_qdma_set(eth, REG_QDMA_GLOBAL_CFG, GLOBAL_CFG_RX_DMA_EN_MASK);
+	airoha_qdma_set(qdma, REG_QDMA_GLOBAL_CFG,
+			GLOBAL_CFG_TX_DMA_EN_MASK |
+			GLOBAL_CFG_RX_DMA_EN_MASK);
 
 	return 0;
 }
@@ -2271,16 +2308,17 @@ static int airoha_dev_open(struct net_device *dev)
 static int airoha_dev_stop(struct net_device *dev)
 {
 	struct airoha_gdm_port *port = netdev_priv(dev);
-	struct airoha_eth *eth = port->eth;
+	struct airoha_qdma *qdma = port->qdma;
 	int err;
 
 	netif_tx_disable(dev);
-	err = airoha_set_gdm_ports(eth, false);
+	err = airoha_set_gdm_ports(qdma->eth, false);
 	if (err)
 		return err;
 
-	airoha_qdma_clear(eth, REG_QDMA_GLOBAL_CFG, GLOBAL_CFG_TX_DMA_EN_MASK);
-	airoha_qdma_clear(eth, REG_QDMA_GLOBAL_CFG, GLOBAL_CFG_RX_DMA_EN_MASK);
+	airoha_qdma_clear(qdma, REG_QDMA_GLOBAL_CFG,
+			  GLOBAL_CFG_TX_DMA_EN_MASK |
+			  GLOBAL_CFG_RX_DMA_EN_MASK);
 
 	return 0;
 }
@@ -2294,7 +2332,7 @@ static int airoha_dev_set_macaddr(struct net_device *dev, void *p)
 	if (err)
 		return err;
 
-	airoha_set_macaddr(port->eth, dev->dev_addr);
+	airoha_set_macaddr(port->qdma->eth, dev->dev_addr);
 
 	return 0;
 }
@@ -2303,7 +2341,7 @@ static int airoha_dev_init(struct net_device *dev)
 {
 	struct airoha_gdm_port *port = netdev_priv(dev);
 
-	airoha_set_macaddr(port->eth, dev->dev_addr);
+	airoha_set_macaddr(port->qdma->eth, dev->dev_addr);
 
 	return 0;
 }
@@ -2337,7 +2375,7 @@ static netdev_tx_t airoha_dev_xmit(struct sk_buff *skb,
 	struct airoha_gdm_port *port = netdev_priv(dev);
 	u32 msg0 = 0, msg1, len = skb_headlen(skb);
 	int i, qid = skb_get_queue_mapping(skb);
-	struct airoha_eth *eth = port->eth;
+	struct airoha_qdma *qdma = port->qdma;
 	u32 nr_frags = 1 + sinfo->nr_frags;
 	struct netdev_queue *txq;
 	struct airoha_queue *q;
@@ -2367,7 +2405,7 @@ static netdev_tx_t airoha_dev_xmit(struct sk_buff *skb,
 	msg1 = FIELD_PREP(QDMA_ETH_TXMSG_FPORT_MASK, fport) |
 	       FIELD_PREP(QDMA_ETH_TXMSG_METER_MASK, 0x7f);
 
-	q = &eth->q_tx[qid];
+	q = &qdma->q_tx[qid];
 	if (WARN_ON_ONCE(!q->ndesc))
 		goto error;
 
@@ -2411,7 +2449,8 @@ static netdev_tx_t airoha_dev_xmit(struct sk_buff *skb,
 		e->dma_addr = addr;
 		e->dma_len = len;
 
-		airoha_qdma_rmw(eth, REG_TX_CPU_IDX(qid), TX_RING_CPU_IDX_MASK,
+		airoha_qdma_rmw(qdma, REG_TX_CPU_IDX(qid),
+				TX_RING_CPU_IDX_MASK,
 				FIELD_PREP(TX_RING_CPU_IDX_MASK, index));
 
 		data = skb_frag_address(frag);
@@ -2448,7 +2487,7 @@ static void airoha_ethtool_get_drvinfo(struct net_device *dev,
 				       struct ethtool_drvinfo *info)
 {
 	struct airoha_gdm_port *port = netdev_priv(dev);
-	struct airoha_eth *eth = port->eth;
+	struct airoha_eth *eth = port->qdma->eth;
 
 	strscpy(info->driver, eth->dev->driver->name, sizeof(info->driver));
 	strscpy(info->bus_info, dev_name(eth->dev), sizeof(info->bus_info));
@@ -2529,6 +2568,7 @@ static int airoha_alloc_gdm_port(struct airoha_eth *eth, struct device_node *np)
 {
 	const __be32 *id_ptr = of_get_property(np, "reg", NULL);
 	struct airoha_gdm_port *port;
+	struct airoha_qdma *qdma;
 	struct net_device *dev;
 	int err, index;
 	u32 id;
@@ -2558,6 +2598,7 @@ static int airoha_alloc_gdm_port(struct airoha_eth *eth, struct device_node *np)
 		return -ENOMEM;
 	}
 
+	qdma = &eth->qdma[index % AIROHA_MAX_NUM_QDMA];
 	dev->netdev_ops = &airoha_netdev_ops;
 	dev->ethtool_ops = &airoha_ethtool_ops;
 	dev->max_mtu = AIROHA_MAX_MTU;
@@ -2567,6 +2608,7 @@ static int airoha_alloc_gdm_port(struct airoha_eth *eth, struct device_node *np)
 			   NETIF_F_SG | NETIF_F_TSO;
 	dev->features |= dev->hw_features;
 	dev->dev.of_node = np;
+	dev->irq = qdma->irq;
 	SET_NETDEV_DEV(dev, eth->dev);
 
 	err = of_get_ethdev_address(np, dev);
@@ -2582,8 +2624,8 @@ static int airoha_alloc_gdm_port(struct airoha_eth *eth, struct device_node *np)
 	port = netdev_priv(dev);
 	u64_stats_init(&port->stats.syncp);
 	spin_lock_init(&port->stats.lock);
+	port->qdma = qdma;
 	port->dev = dev;
-	port->eth = eth;
 	port->id = id;
 	eth->ports[index] = port;
 
@@ -2613,11 +2655,6 @@ static int airoha_probe(struct platform_device *pdev)
 		return dev_err_probe(eth->dev, PTR_ERR(eth->fe_regs),
 				     "failed to iomap fe regs\n");
 
-	eth->qdma_regs = devm_platform_ioremap_resource_byname(pdev, "qdma0");
-	if (IS_ERR(eth->qdma_regs))
-		return dev_err_probe(eth->dev, PTR_ERR(eth->qdma_regs),
-				     "failed to iomap qdma regs\n");
-
 	eth->rsts[0].id = "fe";
 	eth->rsts[1].id = "pdma";
 	eth->rsts[2].id = "qdma";
@@ -2642,11 +2679,6 @@ static int airoha_probe(struct platform_device *pdev)
 		return err;
 	}
 
-	spin_lock_init(&eth->irq_lock);
-	eth->irq = platform_get_irq(pdev, 0);
-	if (eth->irq < 0)
-		return eth->irq;
-
 	eth->napi_dev = alloc_netdev_dummy(0);
 	if (!eth->napi_dev)
 		return -ENOMEM;
@@ -2656,11 +2688,13 @@ static int airoha_probe(struct platform_device *pdev)
 	strscpy(eth->napi_dev->name, "qdma_eth", sizeof(eth->napi_dev->name));
 	platform_set_drvdata(pdev, eth);
 
-	err = airoha_hw_init(eth);
+	err = airoha_hw_init(pdev, eth);
 	if (err)
 		goto error;
 
-	airoha_qdma_start_napi(eth);
+	for (i = 0; i < ARRAY_SIZE(eth->qdma); i++)
+		airoha_qdma_start_napi(&eth->qdma[i]);
+
 	for_each_child_of_node(pdev->dev.of_node, np) {
 		if (!of_device_is_compatible(np, "airoha,eth-mac"))
 			continue;
@@ -2678,7 +2712,9 @@ static int airoha_probe(struct platform_device *pdev)
 	return 0;
 
 error:
-	airoha_hw_cleanup(eth);
+	for (i = 0; i < ARRAY_SIZE(eth->qdma); i++)
+		airoha_hw_cleanup(&eth->qdma[i]);
+
 	for (i = 0; i < ARRAY_SIZE(eth->ports); i++) {
 		struct airoha_gdm_port *port = eth->ports[i];
 
@@ -2696,7 +2732,9 @@ static void airoha_remove(struct platform_device *pdev)
 	struct airoha_eth *eth = platform_get_drvdata(pdev);
 	int i;
 
-	airoha_hw_cleanup(eth);
+	for (i = 0; i < ARRAY_SIZE(eth->qdma); i++)
+		airoha_hw_cleanup(&eth->qdma[i]);
+
 	for (i = 0; i < ARRAY_SIZE(eth->ports); i++) {
 		struct airoha_gdm_port *port = eth->ports[i];