diff --git a/drivers/net/ethernet/marvell/octeontx2/af/Makefile b/drivers/net/ethernet/marvell/octeontx2/af/Makefile
index ccea37847df8..532813d8d028 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/Makefile
+++ b/drivers/net/ethernet/marvell/octeontx2/af/Makefile
@@ -12,4 +12,4 @@ rvu_af-y := cgx.o rvu.o rvu_cgx.o rvu_npa.o rvu_nix.o \
 		  rvu_reg.o rvu_npc.o rvu_debugfs.o ptp.o rvu_npc_fs.o \
 		  rvu_cpt.o rvu_devlink.o rpm.o rvu_cn10k.o rvu_switch.o \
 		  rvu_sdp.o rvu_npc_hash.o mcs.o mcs_rvu_if.o mcs_cnf10kb.o \
-		  rvu_rep.o
+		  rvu_rep.o cn20k/mbox_init.o
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/api.h b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/api.h
new file mode 100644
index 000000000000..74d458093474
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/api.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell RVU Admin Function driver
+ *
+ * Copyright (C) 2024 Marvell.
+ *
+ */
+
+#ifndef CN20K_API_H
+#define CN20K_API_H
+
+#include "../rvu.h"
+
+struct ng_rvu {
+	struct mbox_ops         *rvu_mbox_ops;
+	struct qmem             *pf_mbox_addr;
+};
+
+/* Mbox related APIs */
+int cn20k_rvu_mbox_init(struct rvu *rvu, int type, int num);
+int cn20k_rvu_get_mbox_regions(struct rvu *rvu, void **mbox_addr,
+			       int num, int type, unsigned long *pf_bmap);
+void cn20k_free_mbox_memory(struct rvu *rvu);
+#endif /* CN20K_API_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/mbox_init.c b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/mbox_init.c
new file mode 100644
index 000000000000..77a0f86fec2f
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/mbox_init.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Marvell RVU Admin Function driver
+ *
+ * Copyright (C) 2024 Marvell.
+ *
+ */
+
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+
+#include "rvu_trace.h"
+#include "mbox.h"
+#include "reg.h"
+#include "api.h"
+
+int cn20k_rvu_get_mbox_regions(struct rvu *rvu, void **mbox_addr,
+			       int num, int type, unsigned long *pf_bmap)
+{
+	int region;
+	u64 bar;
+
+	for (region = 0; region < num; region++) {
+		if (!test_bit(region, pf_bmap))
+			continue;
+
+		bar = (u64)phys_to_virt((u64)rvu->ng_rvu->pf_mbox_addr->base);
+		bar += region * MBOX_SIZE;
+
+		mbox_addr[region] = (void *)bar;
+
+		if (!mbox_addr[region])
+			return -ENOMEM;
+	}
+	return 0;
+}
+
+static int rvu_alloc_mbox_memory(struct rvu *rvu, int type,
+				 int ndevs, int mbox_size)
+{
+	struct qmem *mbox_addr;
+	dma_addr_t iova;
+	int pf, err;
+
+	/* Allocate contiguous memory for mailbox communication.
+	 * eg: AF <=> PFx mbox memory
+	 * This allocated memory is split into chunks of MBOX_SIZE
+	 * and setup into each of the RVU PFs. In HW this memory will
+	 * get aliased to an offset within BAR2 of those PFs.
+	 *
+	 * AF will access mbox memory using direct physical addresses
+	 * and PFs will access the same shared memory from BAR2.
+	 */
+
+	err = qmem_alloc(rvu->dev, &mbox_addr, ndevs, mbox_size);
+	if (err)
+		return -ENOMEM;
+
+	switch (type) {
+	case TYPE_AFPF:
+		rvu->ng_rvu->pf_mbox_addr = mbox_addr;
+		iova = (u64)mbox_addr->iova;
+		for (pf = 0; pf < ndevs; pf++) {
+			rvu_write64(rvu, BLKADDR_RVUM, RVU_MBOX_AF_PFX_ADDR(pf),
+				    (u64)iova);
+			iova += mbox_size;
+		}
+		break;
+	default:
+		return 0;
+	}
+
+	return 0;
+}
+
+int cn20k_rvu_mbox_init(struct rvu *rvu, int type, int ndevs)
+{
+	int dev;
+
+	if (!is_cn20k(rvu->pdev))
+		return 0;
+
+	for (dev = 0; dev < ndevs; dev++)
+		rvu_write64(rvu, BLKADDR_RVUM,
+			    RVU_MBOX_AF_PFX_CFG(dev), ilog2(MBOX_SIZE));
+
+	return rvu_alloc_mbox_memory(rvu, type, ndevs, MBOX_SIZE);
+}
+
+void cn20k_free_mbox_memory(struct rvu *rvu)
+{
+	if (!is_cn20k(rvu->pdev))
+		return;
+
+	qmem_free(rvu->dev, rvu->ng_rvu->pf_mbox_addr);
+}
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/reg.h b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/reg.h
new file mode 100644
index 000000000000..58152a4024ec
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/reg.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell RVU Admin Function driver
+ *
+ * Copyright (C) 2024 Marvell.
+ *
+ */
+
+#ifndef RVU_MBOX_REG_H
+#define RVU_MBOX_REG_H
+#include "../rvu.h"
+#include "../rvu_reg.h"
+
+/* RVUM block registers */
+#define RVU_PF_DISC				(0x0)
+#define RVU_PRIV_PFX_DISC(a)			(0x8000208 | (a) << 16)
+#define RVU_PRIV_HWVFX_DISC(a)			(0xD000000 | (a) << 12)
+
+/* Mbox Registers */
+/* RVU AF BAR0 Mbox registers for AF => PFx */
+#define RVU_MBOX_AF_PFX_ADDR(a)			(0x5000 | (a) << 4)
+#define RVU_MBOX_AF_PFX_CFG(a)			(0x6000 | (a) << 4)
+#define RVU_AF_BAR2_SEL				(0x9000000)
+#define RVU_AF_BAR2_PFID			(0x16400)
+#define NIX_CINTX_INT_W1S(a)			(0xd30 | (a) << 12)
+#define NIX_QINTX_CNT(a)			(0xc00 | (a) << 12)
+
+#endif /* RVU_MBOX_REG_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.c b/drivers/net/ethernet/marvell/octeontx2/af/mbox.c
index 7d21905deed8..a70d55ed0c29 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.c
@@ -10,8 +10,11 @@
 #include <linux/pci.h>
 
 #include "rvu_reg.h"
+#include "cn20k/reg.h"
+#include "cn20k/api.h"
 #include "mbox.h"
 #include "rvu_trace.h"
+#include "rvu.h"
 
 static const u16 msgs_offset = ALIGN(sizeof(struct mbox_hdr), MBOX_MSG_ALIGN);
 
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index a213b2663583..1e287599ac21 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -50,6 +50,11 @@
 #define MBOX_DIR_PFVF_UP	6  /* PF sends messages to VF */
 #define MBOX_DIR_VFPF_UP	7  /* VF replies to PF */
 
+enum {
+	TYPE_AFVF,
+	TYPE_AFPF,
+};
+
 struct otx2_mbox_dev {
 	void	    *mbase;   /* This dev's mbox region */
 	void	    *hwbase;
@@ -78,6 +83,8 @@ struct otx2_mbox {
 struct mbox_hdr {
 	u64 msg_size;	/* Total msgs size embedded */
 	u16  num_msgs;   /* No of msgs embedded */
+	u16 opt_msg;
+	u8 sig;
 };
 
 /* Header which precedes every msg and is also part of it */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
index 61d80a2277f0..348e23ed9b01 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
@@ -20,6 +20,8 @@
 
 #include "rvu_trace.h"
 #include "rvu_npc_hash.h"
+#include "cn20k/reg.h"
+#include "cn20k/api.h"
 
 #define DRV_NAME	"rvu_af"
 #define DRV_STRING      "Marvell OcteonTX2 RVU Admin Function Driver"
@@ -34,10 +36,8 @@ static int rvu_mbox_init(struct rvu *rvu, struct mbox_wq_info *mw,
 			 int type, int num,
 			 void (mbox_handler)(struct work_struct *),
 			 void (mbox_up_handler)(struct work_struct *));
-enum {
-	TYPE_AFVF,
-	TYPE_AFPF,
-};
+static irqreturn_t rvu_mbox_pf_intr_handler(int irq, void *rvu_irq);
+static irqreturn_t rvu_mbox_intr_handler(int irq, void *rvu_irq);
 
 /* Supported devices */
 static const struct pci_device_id rvu_id_table[] = {
@@ -2218,6 +2218,22 @@ static void __rvu_mbox_handler(struct rvu_work *mwork, int type, bool poll)
 
 	offset = mbox->rx_start + ALIGN(sizeof(*req_hdr), MBOX_MSG_ALIGN);
 
+	if (req_hdr->sig && !(is_rvu_otx2(rvu) || is_cn20k(rvu->pdev))) {
+		req_hdr->opt_msg = mw->mbox_wrk[devid].num_msgs;
+		rvu_write64(rvu, BLKADDR_NIX0, RVU_AF_BAR2_SEL,
+			    RVU_AF_BAR2_PFID);
+		if (type == TYPE_AFPF)
+			rvu_write64(rvu, BLKADDR_NIX0,
+				    AF_BAR2_ALIASX(0, NIX_CINTX_INT_W1S(devid)),
+				    0x1);
+		else
+			rvu_write64(rvu, BLKADDR_NIX0,
+				    AF_BAR2_ALIASX(0, NIX_QINTX_CNT(devid)),
+				    0x1);
+		usleep_range(5000, 6000);
+		goto done;
+	}
+
 	for (id = 0; id < mw->mbox_wrk[devid].num_msgs; id++) {
 		msg = mdev->mbase + offset;
 
@@ -2250,9 +2266,10 @@ static void __rvu_mbox_handler(struct rvu_work *mwork, int type, bool poll)
 				 err, otx2_mbox_id2name(msg->id),
 				 msg->id, devid);
 	}
+done:
 	mw->mbox_wrk[devid].num_msgs = 0;
 
-	if (poll)
+	if (!is_cn20k(mbox->pdev) && poll)
 		otx2_mbox_wait_for_zero(mbox, devid);
 
 	/* Send mbox responses to VF/PF */
@@ -2365,6 +2382,14 @@ static int rvu_get_mbox_regions(struct rvu *rvu, void __iomem **mbox_addr,
 	int region;
 	u64 bar4;
 
+	/* For cn20k platform AF mailbox region is allocated by software
+	 * and the corresponding IOVA is programmed in hardware unlike earlier
+	 * silicons where software uses the hardware region after ioremap.
+	 */
+	if (is_cn20k(rvu->pdev))
+		return cn20k_rvu_get_mbox_regions(rvu, (void *)mbox_addr,
+						  num, type, pf_bmap);
+
 	/* For cn10k platform VF mailbox regions of a PF follows after the
 	 * PF <-> AF mailbox region. Whereas for Octeontx2 it is read from
 	 * RVU_PF_VF_BAR4_ADDR register.
@@ -2418,6 +2443,10 @@ static int rvu_get_mbox_regions(struct rvu *rvu, void __iomem **mbox_addr,
 	return -ENOMEM;
 }
 
+static struct mbox_ops rvu_mbox_ops = {
+	.pf_intr_handler = rvu_mbox_pf_intr_handler,
+};
+
 static int rvu_mbox_init(struct rvu *rvu, struct mbox_wq_info *mw,
 			 int type, int num,
 			 void (mbox_handler)(struct work_struct *),
@@ -2425,6 +2454,7 @@ static int rvu_mbox_init(struct rvu *rvu, struct mbox_wq_info *mw,
 {
 	int err = -EINVAL, i, dir, dir_up;
 	void __iomem **mbox_regions;
+	struct ng_rvu *ng_rvu_mbox;
 	void __iomem *reg_base;
 	struct rvu_work *mwork;
 	unsigned long *pf_bmap;
@@ -2435,6 +2465,12 @@ static int rvu_mbox_init(struct rvu *rvu, struct mbox_wq_info *mw,
 	if (!pf_bmap)
 		return -ENOMEM;
 
+	ng_rvu_mbox = kzalloc(sizeof(*ng_rvu_mbox), GFP_KERNEL);
+	if (!ng_rvu_mbox) {
+		err = -ENOMEM;
+		goto free_bitmap;
+	}
+
 	/* RVU VFs */
 	if (type == TYPE_AFVF)
 		bitmap_set(pf_bmap, 0, num);
@@ -2448,12 +2484,20 @@ static int rvu_mbox_init(struct rvu *rvu, struct mbox_wq_info *mw,
 		}
 	}
 
+	rvu->ng_rvu = ng_rvu_mbox;
+
+	rvu->ng_rvu->rvu_mbox_ops = &rvu_mbox_ops;
+
+	err = cn20k_rvu_mbox_init(rvu, type, num);
+	if (err)
+		goto free_mem;
+
 	mutex_init(&rvu->mbox_lock);
 
 	mbox_regions = kcalloc(num, sizeof(void __iomem *), GFP_KERNEL);
 	if (!mbox_regions) {
 		err = -ENOMEM;
-		goto free_bitmap;
+		goto free_qmem;
 	}
 
 	switch (type) {
@@ -2480,7 +2524,7 @@ static int rvu_mbox_init(struct rvu *rvu, struct mbox_wq_info *mw,
 	}
 
 	mw->mbox_wq = alloc_workqueue("%s",
-				      WQ_UNBOUND | WQ_HIGHPRI | WQ_MEM_RECLAIM,
+				      WQ_HIGHPRI | WQ_MEM_RECLAIM,
 				      num, name);
 	if (!mw->mbox_wq) {
 		err = -ENOMEM;
@@ -2532,6 +2576,10 @@ static int rvu_mbox_init(struct rvu *rvu, struct mbox_wq_info *mw,
 		iounmap((void __iomem *)mbox_regions[num]);
 free_regions:
 	kfree(mbox_regions);
+free_qmem:
+	cn20k_free_mbox_memory(rvu);
+free_mem:
+	kfree(rvu->ng_rvu);
 free_bitmap:
 	bitmap_free(pf_bmap);
 	return err;
@@ -2558,8 +2606,8 @@ static void rvu_mbox_destroy(struct mbox_wq_info *mw)
 	otx2_mbox_destroy(&mw->mbox_up);
 }
 
-static void rvu_queue_work(struct mbox_wq_info *mw, int first,
-			   int mdevs, u64 intr)
+void rvu_queue_work(struct mbox_wq_info *mw, int first,
+		    int mdevs, u64 intr)
 {
 	struct otx2_mbox_dev *mdev;
 	struct otx2_mbox *mbox;
@@ -2970,12 +3018,13 @@ static int rvu_register_interrupts(struct rvu *rvu)
 
 	/* Register mailbox interrupt handler */
 	sprintf(&rvu->irq_name[RVU_AF_INT_VEC_MBOX * NAME_SIZE], "RVUAF Mbox");
-	ret = request_irq(pci_irq_vector(rvu->pdev, RVU_AF_INT_VEC_MBOX),
-			  rvu_mbox_pf_intr_handler, 0,
+	ret = request_irq(pci_irq_vector
+			  (rvu->pdev, RVU_AF_INT_VEC_MBOX),
+			  rvu->ng_rvu->rvu_mbox_ops->pf_intr_handler, 0,
 			  &rvu->irq_name[RVU_AF_INT_VEC_MBOX * NAME_SIZE], rvu);
 	if (ret) {
 		dev_err(rvu->dev,
-			"RVUAF: IRQ registration failed for mbox irq\n");
+			"RVUAF: IRQ registration failed for mbox\n");
 		goto fail;
 	}
 
@@ -3483,6 +3532,9 @@ static void rvu_remove(struct pci_dev *pdev)
 	pci_set_drvdata(pdev, NULL);
 
 	devm_kfree(&pdev->dev, rvu->hw);
+	if (is_cn20k(rvu->pdev))
+		cn20k_free_mbox_memory(rvu);
+	kfree(rvu->ng_rvu);
 	devm_kfree(&pdev->dev, rvu);
 }
 
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 5c179df1f167..987edf007a9e 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -471,6 +471,10 @@ struct mbox_wq_info {
 	struct workqueue_struct *mbox_wq;
 };
 
+struct mbox_ops {
+	irqreturn_t (*pf_intr_handler)(int irq, void *rvu_irq);
+};
+
 struct channel_fwdata {
 	struct sdp_node_info info;
 	u8 valid;
@@ -636,6 +640,8 @@ struct rvu {
 	struct list_head	rep_evtq_head;
 	/* Representor event lock */
 	spinlock_t		rep_evtq_lock;
+
+	struct ng_rvu           *ng_rvu;
 };
 
 static inline void rvu_write64(struct rvu *rvu, u64 block, u64 offset, u64 val)
@@ -935,6 +941,10 @@ int rvu_mbox_handler_ ## fn_name(struct rvu *, struct req *, struct rsp *);
 MBOX_MESSAGES
 #undef M
 
+/* Mbox APIs */
+void rvu_queue_work(struct mbox_wq_info *mw, int first,
+		    int mdevs, u64 intr);
+
 int rvu_cgx_init(struct rvu *rvu);
 int rvu_cgx_exit(struct rvu *rvu);
 void *rvu_cgx_pdata(u8 cgx_id, struct rvu *rvu);
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
index 77ac94cb2ec4..0596a3ac4c12 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
@@ -33,7 +33,8 @@ enum rvu_block_addr_e {
 	BLKADDR_NDC_NIX1_RX	= 0x10ULL,
 	BLKADDR_NDC_NIX1_TX	= 0x11ULL,
 	BLKADDR_APR		= 0x16ULL,
-	BLK_COUNT		= 0x17ULL,
+	BLKADDR_MBOX		= 0x1bULL,
+	BLK_COUNT		= 0x1cULL,
 };
 
 /* RVU Block Type Enumeration */
@@ -49,7 +50,8 @@ enum rvu_block_type_e {
 	BLKTYPE_TIM  = 0x8,
 	BLKTYPE_CPT  = 0x9,
 	BLKTYPE_NDC  = 0xa,
-	BLKTYPE_MAX  = 0xa,
+	BLKTYPE_MBOX = 0x13,
+	BLKTYPE_MAX  = 0x13,
 };
 
 /* RVU Admin function Interrupt Vector Enumeration */