diff --git a/drivers/net/ethernet/marvell/octeontx2/af/common.h b/drivers/net/ethernet/marvell/octeontx2/af/common.h
index 406c59100a35..8a08bebf08c2 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/common.h
@@ -39,7 +39,7 @@ struct qmem {
 	void            *base;
 	dma_addr_t	iova;
 	int		alloc_sz;
-	u16		entry_sz;
+	u32		entry_sz;
 	u8		align;
 	u32		qsize;
 };
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/cn20k.c b/drivers/net/ethernet/marvell/octeontx2/nic/cn20k.c
index fa5951645b35..ec8cde98076d 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/cn20k.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/cn20k.c
@@ -13,6 +13,7 @@
 static struct dev_hw_ops cn20k_hw_ops = {
 	.pfaf_mbox_intr_handler = cn20k_pfaf_mbox_intr_handler,
 	.vfaf_mbox_intr_handler = cn20k_vfaf_mbox_intr_handler,
+	.pfvf_mbox_intr_handler = cn20k_pfvf_mbox_intr_handler,
 };
 
 void cn20k_init(struct otx2_nic *pfvf)
@@ -108,3 +109,144 @@ irqreturn_t cn20k_vfaf_mbox_intr_handler(int irq, void *vf_irq)
 
 	return IRQ_HANDLED;
 }
+
+void cn20k_enable_pfvf_mbox_intr(struct otx2_nic *pf, int numvfs)
+{
+	/* Clear PF <=> VF mailbox IRQ */
+	otx2_write64(pf, RVU_MBOX_PF_VFPF_INTX(0), ~0ull);
+	otx2_write64(pf, RVU_MBOX_PF_VFPF_INTX(1), ~0ull);
+	otx2_write64(pf, RVU_MBOX_PF_VFPF1_INTX(0), ~0ull);
+	otx2_write64(pf, RVU_MBOX_PF_VFPF1_INTX(1), ~0ull);
+
+	/* Enable PF <=> VF mailbox IRQ */
+	otx2_write64(pf, RVU_MBOX_PF_VFPF_INT_ENA_W1SX(0), INTR_MASK(numvfs));
+	otx2_write64(pf, RVU_MBOX_PF_VFPF1_INT_ENA_W1SX(0), INTR_MASK(numvfs));
+	if (numvfs > 64) {
+		numvfs -= 64;
+		otx2_write64(pf, RVU_MBOX_PF_VFPF_INT_ENA_W1SX(1),
+			     INTR_MASK(numvfs));
+		otx2_write64(pf, RVU_MBOX_PF_VFPF1_INT_ENA_W1SX(1),
+			     INTR_MASK(numvfs));
+	}
+}
+
+void cn20k_disable_pfvf_mbox_intr(struct otx2_nic *pf, int numvfs)
+{
+	int vector, intr_vec, vec = 0;
+
+	/* Disable PF <=> VF mailbox IRQ */
+	otx2_write64(pf, RVU_MBOX_PF_VFPF_INT_ENA_W1CX(0), ~0ull);
+	otx2_write64(pf, RVU_MBOX_PF_VFPF_INT_ENA_W1CX(1), ~0ull);
+	otx2_write64(pf, RVU_MBOX_PF_VFPF1_INT_ENA_W1CX(0), ~0ull);
+	otx2_write64(pf, RVU_MBOX_PF_VFPF1_INT_ENA_W1CX(1), ~0ull);
+
+	otx2_write64(pf, RVU_MBOX_PF_VFPF_INTX(0), ~0ull);
+	otx2_write64(pf, RVU_MBOX_PF_VFPF1_INTX(0), ~0ull);
+
+	if (numvfs > 64) {
+		otx2_write64(pf, RVU_MBOX_PF_VFPF_INTX(1), ~0ull);
+		otx2_write64(pf, RVU_MBOX_PF_VFPF1_INTX(1), ~0ull);
+	}
+
+	for (intr_vec = RVU_MBOX_PF_INT_VEC_VFPF_MBOX0; intr_vec <=
+			RVU_MBOX_PF_INT_VEC_VFPF1_MBOX1; intr_vec++, vec++) {
+		vector = pci_irq_vector(pf->pdev, intr_vec);
+		free_irq(vector, pf->hw.pfvf_irq_devid[vec]);
+	}
+}
+
+irqreturn_t cn20k_pfvf_mbox_intr_handler(int irq, void *pf_irq)
+{
+	struct pf_irq_data *irq_data = pf_irq;
+	struct otx2_nic *pf = irq_data->pf;
+	struct mbox *mbox;
+	u64 intr;
+
+	/* Sync with mbox memory region */
+	rmb();
+
+	/* Clear interrupts */
+	intr = otx2_read64(pf, irq_data->intr_status);
+	otx2_write64(pf, irq_data->intr_status, intr);
+	mbox = pf->mbox_pfvf;
+
+	if (intr)
+		trace_otx2_msg_interrupt(pf->pdev, "VF(s) to PF", intr);
+
+	irq_data->pf_queue_work_hdlr(mbox, pf->mbox_pfvf_wq, irq_data->start,
+				     irq_data->mdevs, intr);
+
+	return IRQ_HANDLED;
+}
+
+int cn20k_register_pfvf_mbox_intr(struct otx2_nic *pf, int numvfs)
+{
+	struct otx2_hw *hw = &pf->hw;
+	struct pf_irq_data *irq_data;
+	int intr_vec, ret, vec = 0;
+	char *irq_name;
+
+	/* irq data for 4 PF intr vectors */
+	irq_data = devm_kcalloc(pf->dev, 4,
+				sizeof(struct pf_irq_data), GFP_KERNEL);
+	if (!irq_data)
+		return -ENOMEM;
+
+	for (intr_vec = RVU_MBOX_PF_INT_VEC_VFPF_MBOX0; intr_vec <=
+			RVU_MBOX_PF_INT_VEC_VFPF1_MBOX1; intr_vec++, vec++) {
+		switch (intr_vec) {
+		case RVU_MBOX_PF_INT_VEC_VFPF_MBOX0:
+			irq_data[vec].intr_status =
+						RVU_MBOX_PF_VFPF_INTX(0);
+			irq_data[vec].start = 0;
+			irq_data[vec].mdevs = 64;
+			break;
+		case RVU_MBOX_PF_INT_VEC_VFPF_MBOX1:
+			irq_data[vec].intr_status =
+						RVU_MBOX_PF_VFPF_INTX(1);
+			irq_data[vec].start = 64;
+			irq_data[vec].mdevs = 96;
+			break;
+		case RVU_MBOX_PF_INT_VEC_VFPF1_MBOX0:
+			irq_data[vec].intr_status =
+						RVU_MBOX_PF_VFPF1_INTX(0);
+			irq_data[vec].start = 0;
+			irq_data[vec].mdevs = 64;
+			break;
+		case RVU_MBOX_PF_INT_VEC_VFPF1_MBOX1:
+			irq_data[vec].intr_status =
+						RVU_MBOX_PF_VFPF1_INTX(1);
+			irq_data[vec].start = 64;
+			irq_data[vec].mdevs = 96;
+			break;
+		}
+		irq_data[vec].pf_queue_work_hdlr = otx2_queue_vf_work;
+		irq_data[vec].vec_num = intr_vec;
+		irq_data[vec].pf = pf;
+
+		/* Register mailbox interrupt handler */
+		irq_name = &hw->irq_name[intr_vec * NAME_SIZE];
+		if (pf->pcifunc)
+			snprintf(irq_name, NAME_SIZE,
+				 "RVUPF%d_VF%d Mbox%d", rvu_get_pf(pf->pdev,
+				 pf->pcifunc), vec / 2, vec % 2);
+		else
+			snprintf(irq_name, NAME_SIZE, "RVUPF_VF%d Mbox%d",
+				 vec / 2, vec % 2);
+
+		hw->pfvf_irq_devid[vec] = &irq_data[vec];
+		ret = request_irq(pci_irq_vector(pf->pdev, intr_vec),
+				  pf->hw_ops->pfvf_mbox_intr_handler, 0,
+				  irq_name,
+				  &irq_data[vec]);
+		if (ret) {
+			dev_err(pf->dev,
+				"RVUPF: IRQ registration failed for PFVF mbox0 irq\n");
+			return ret;
+		}
+	}
+
+	cn20k_enable_pfvf_mbox_intr(pf, numvfs);
+
+	return 0;
+}
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/cn20k.h b/drivers/net/ethernet/marvell/octeontx2/nic/cn20k.h
index 712bb2b5e2ae..832adaf8c57f 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/cn20k.h
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/cn20k.h
@@ -11,4 +11,7 @@
 #include "otx2_common.h"
 
 void cn20k_init(struct otx2_nic *pfvf);
+int cn20k_register_pfvf_mbox_intr(struct otx2_nic *pf, int numvfs);
+void cn20k_disable_pfvf_mbox_intr(struct otx2_nic *pf, int numvfs);
+void cn20k_enable_pfvf_mbox_intr(struct otx2_nic *pf, int numvfs);
 #endif /* CN20K_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
index d8ae28b2c6c8..6b59881f78e0 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
@@ -66,6 +66,7 @@
 irqreturn_t otx2_pfaf_mbox_intr_handler(int irq, void *pf_irq);
 irqreturn_t cn20k_pfaf_mbox_intr_handler(int irq, void *pf_irq);
 irqreturn_t cn20k_vfaf_mbox_intr_handler(int irq, void *vf_irq);
+irqreturn_t cn20k_pfvf_mbox_intr_handler(int irq, void *pf_irq);
 irqreturn_t otx2_pfvf_mbox_intr_handler(int irq, void *pf_irq);
 
 enum arua_mapped_qtypes {
@@ -376,6 +377,7 @@ struct dev_hw_ops {
 	void	(*aura_freeptr)(void *dev, int aura, u64 buf);
 	irqreturn_t (*pfaf_mbox_intr_handler)(int irq, void *pf_irq);
 	irqreturn_t (*vfaf_mbox_intr_handler)(int irq, void *pf_irq);
+	irqreturn_t (*pfvf_mbox_intr_handler)(int irq, void *pf_irq);
 };
 
 #define CN10K_MCS_SA_PER_SC	4
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
index 8f67fa42dc94..4e2d1206e1b0 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
@@ -576,6 +576,23 @@ irqreturn_t otx2_pfvf_mbox_intr_handler(int irq, void *pf_irq)
 	return IRQ_HANDLED;
 }
 
+static void *cn20k_pfvf_mbox_alloc(struct otx2_nic *pf, int numvfs)
+{
+	struct qmem *mbox_addr;
+	int err;
+
+	err = qmem_alloc(&pf->pdev->dev, &mbox_addr, numvfs, MBOX_SIZE);
+	if (err) {
+		dev_err(pf->dev, "qmem alloc fail\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	otx2_write64(pf, RVU_PF_VF_MBOX_ADDR, (u64)mbox_addr->iova);
+	pf->pfvf_mbox_addr = mbox_addr;
+
+	return mbox_addr->base;
+}
+
 static int otx2_pfvf_mbox_init(struct otx2_nic *pf, int numvfs)
 {
 	void __iomem *hwbase;
@@ -597,19 +614,27 @@ static int otx2_pfvf_mbox_init(struct otx2_nic *pf, int numvfs)
 	if (!pf->mbox_pfvf_wq)
 		return -ENOMEM;
 
-	/* On CN10K platform, PF <-> VF mailbox region follows after
-	 * PF <-> AF mailbox region.
+	/* For CN20K, PF allocates mbox memory in DRAM and writes PF/VF
+	 * regions/offsets in RVU_PF_VF_MBOX_ADDR, the RVU_PFX_FUNC_PFAF_MBOX
+	 * gives the aliased address to access PF/VF mailbox regions.
 	 */
-	if (test_bit(CN10K_MBOX, &pf->hw.cap_flag))
-		base = pci_resource_start(pf->pdev, PCI_MBOX_BAR_NUM) +
-		       MBOX_SIZE;
-	else
-		base = readq(pf->reg_base + RVU_PF_VF_BAR4_ADDR);
+	if (is_cn20k(pf->pdev)) {
+		hwbase = (void __iomem *)cn20k_pfvf_mbox_alloc(pf, numvfs);
+	} else {
+		/* On CN10K platform, PF <-> VF mailbox region follows after
+		 * PF <-> AF mailbox region.
+		 */
+		if (test_bit(CN10K_MBOX, &pf->hw.cap_flag))
+			base = pci_resource_start(pf->pdev, PCI_MBOX_BAR_NUM) +
+						  MBOX_SIZE;
+		else
+			base = readq(pf->reg_base + RVU_PF_VF_BAR4_ADDR);
 
-	hwbase = ioremap_wc(base, MBOX_SIZE * pf->total_vfs);
-	if (!hwbase) {
-		err = -ENOMEM;
-		goto free_wq;
+		hwbase = ioremap_wc(base, MBOX_SIZE * pf->total_vfs);
+		if (!hwbase) {
+			err = -ENOMEM;
+			goto free_wq;
+		}
 	}
 
 	mbox = &pf->mbox_pfvf[0];
@@ -633,7 +658,7 @@ static int otx2_pfvf_mbox_init(struct otx2_nic *pf, int numvfs)
 	return 0;
 
 free_iomem:
-	if (hwbase)
+	if (hwbase && !(is_cn20k(pf->pdev)))
 		iounmap(hwbase);
 free_wq:
 	destroy_workqueue(pf->mbox_pfvf_wq);
@@ -652,8 +677,10 @@ static void otx2_pfvf_mbox_destroy(struct otx2_nic *pf)
 		pf->mbox_pfvf_wq = NULL;
 	}
 
-	if (mbox->mbox.hwbase)
+	if (mbox->mbox.hwbase && !is_cn20k(pf->pdev))
 		iounmap(mbox->mbox.hwbase);
+	else
+		qmem_free(&pf->pdev->dev, pf->pfvf_mbox_addr);
 
 	otx2_mbox_destroy(&mbox->mbox);
 }
@@ -677,6 +704,9 @@ static void otx2_disable_pfvf_mbox_intr(struct otx2_nic *pf, int numvfs)
 {
 	int vector;
 
+	if (is_cn20k(pf->pdev))
+		return cn20k_disable_pfvf_mbox_intr(pf, numvfs);
+
 	/* Disable PF <=> VF mailbox IRQ */
 	otx2_write64(pf, RVU_PF_VFPF_MBOX_INT_ENA_W1CX(0), ~0ull);
 	otx2_write64(pf, RVU_PF_VFPF_MBOX_INT_ENA_W1CX(1), ~0ull);
@@ -698,6 +728,9 @@ static int otx2_register_pfvf_mbox_intr(struct otx2_nic *pf, int numvfs)
 	char *irq_name;
 	int err;
 
+	if (is_cn20k(pf->pdev))
+		return cn20k_register_pfvf_mbox_intr(pf, numvfs);
+
 	/* Register MBOX0 interrupt handler */
 	irq_name = &hw->irq_name[RVU_PF_INT_VEC_VFPF_MBOX0 * NAME_SIZE];
 	if (pf->pcifunc)