[PATCH v6 4/8] net/cpfl: set up control path

["Zhang, Yuying" <yuying.zhang@intel.com>]

From: Yuying Zhang <yuying.zhang@intel.com>

Set up control vport and control queue for flow offloading.

Signed-off-by: Yuying Zhang <yuying.zhang@intel.com>
---
 drivers/net/cpfl/cpfl_controlq.c | 803 +++++++++++++++++++++++++++++++
 drivers/net/cpfl/cpfl_controlq.h |  75 +++
 drivers/net/cpfl/cpfl_ethdev.c   | 270 +++++++++++
 drivers/net/cpfl/cpfl_ethdev.h   |  14 +
 drivers/net/cpfl/cpfl_vchnl.c    | 144 ++++++
 drivers/net/cpfl/meson.build     |   1 +
 6 files changed, 1307 insertions(+)
 create mode 100644 drivers/net/cpfl/cpfl_controlq.c
 create mode 100644 drivers/net/cpfl/cpfl_controlq.h

diff --git a/drivers/net/cpfl/cpfl_controlq.c b/drivers/net/cpfl/cpfl_controlq.c
new file mode 100644
index 0000000000..ed76282b0c
--- /dev/null
+++ b/drivers/net/cpfl/cpfl_controlq.c
@@ -0,0 +1,803 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2001-2023 Intel Corporation
+ */
+
+#include "cpfl_controlq.h"
+#include "base/idpf_controlq.h"
+#include "rte_common.h"
+
+/**
+ * cpfl_check_dma_mem_parameters - verify DMA memory params from CP
+ * @qinfo: pointer to create control queue info struct
+ *
+ * Verify that DMA parameter of each DMA memory struct is present and
+ * consistent with control queue parameters
+ */
+static inline int
+cpfl_check_dma_mem_parameters(struct cpfl_ctlq_create_info *qinfo)
+{
+	struct idpf_dma_mem *ring = &qinfo->ring_mem;
+	struct idpf_dma_mem *buf = &qinfo->buf_mem;
+
+	if (!ring->va || !ring->size)
+		return -EBADR;
+
+	if (ring->size != qinfo->len * sizeof(struct idpf_ctlq_desc))
+		return -EINVAL;
+
+	/* no need for buffer checks for TX queues */
+	if (qinfo->type == IDPF_CTLQ_TYPE_MAILBOX_TX ||
+	    qinfo->type == IDPF_CTLQ_TYPE_CONFIG_TX ||
+	    qinfo->type == IDPF_CTLQ_TYPE_RDMA_TX)
+		return 0;
+
+	if (!buf->va || !buf->size)
+		return -EBADR;
+
+	/* accommodate different types of rx ring buffer sizes */
+	if ((qinfo->type == IDPF_CTLQ_TYPE_MAILBOX_RX &&
+	     buf->size != CPFL_CTLQ_MAILBOX_BUFFER_SIZE * qinfo->len) ||
+	    (qinfo->type == IDPF_CTLQ_TYPE_CONFIG_RX &&
+	     buf->size != CPFL_CFGQ_RING_LEN * CPFL_CTLQ_CFGQ_BUFFER_SIZE))
+		return -EBADR;
+
+	return 0;
+}
+
+/**
+ * cpfl_ctlq_alloc_ring_res - store memory for descriptor ring and bufs
+ * @hw: pointer to hw struct
+ * @cq: pointer to control queue struct
+ * @qinfo: pointer to create queue info struct
+ *
+ * The CP takes care of all DMA memory allocations. Store the allocated memory
+ * information for the descriptor ring and buffers. If the memory for either the
+ * descriptor ring or the buffers is not allocated properly and/or inconsistent
+ * with the control queue parameters, this routine will free the memory for
+ * both the descriptors and the buffers
+ */
+int
+cpfl_ctlq_alloc_ring_res(struct idpf_hw *hw __rte_unused, struct idpf_ctlq_info *cq,
+			 struct cpfl_ctlq_create_info *qinfo)
+{
+	int ret_code = 0;
+	unsigned int elem_size;
+	int i = 0;
+
+	ret_code = cpfl_check_dma_mem_parameters(qinfo);
+	if (ret_code)
+		/* TODO: Log an error message per CP */
+		goto err;
+
+	cq->desc_ring.va = qinfo->ring_mem.va;
+	cq->desc_ring.pa = qinfo->ring_mem.pa;
+	cq->desc_ring.size = qinfo->ring_mem.size;
+
+	switch (cq->cq_type) {
+	case IDPF_CTLQ_TYPE_MAILBOX_RX:
+	case IDPF_CTLQ_TYPE_CONFIG_RX:
+	case IDPF_CTLQ_TYPE_EVENT_RX:
+	case IDPF_CTLQ_TYPE_RDMA_RX:
+		/* Only receive queues will have allocated buffers
+		 * during init.  CP allocates one big chunk of DMA
+		 * region who size is equal to ring_len * buff_size.
+		 * In CPFLib, the block gets broken down to multiple
+		 * smaller blocks that actually gets programmed in the hardware.
+		 */
+
+		cq->bi.rx_buff = (struct idpf_dma_mem **)
+			idpf_calloc(hw, cq->ring_size,
+				    sizeof(struct idpf_dma_mem *));
+		if (!cq->bi.rx_buff) {
+			ret_code = -ENOMEM;
+			/* TODO: Log an error message per CP */
+			goto err;
+		}
+
+		elem_size = qinfo->buf_size;
+		for (i = 0; i < cq->ring_size; i++) {
+			cq->bi.rx_buff[i] = (struct idpf_dma_mem *)idpf_calloc
+					    (hw, 1,
+					     sizeof(struct idpf_dma_mem));
+			if (!cq->bi.rx_buff[i]) {
+				ret_code = -ENOMEM;
+				goto free_rx_buffs;
+			}
+			cq->bi.rx_buff[i]->va =
+			    (uint64_t *)((char *)qinfo->buf_mem.va + (i * elem_size));
+			cq->bi.rx_buff[i]->pa = qinfo->buf_mem.pa +
+					       (i * elem_size);
+			cq->bi.rx_buff[i]->size = elem_size;
+		}
+		break;
+	case IDPF_CTLQ_TYPE_MAILBOX_TX:
+	case IDPF_CTLQ_TYPE_CONFIG_TX:
+	case IDPF_CTLQ_TYPE_RDMA_TX:
+	case IDPF_CTLQ_TYPE_RDMA_COMPL:
+		break;
+	default:
+		ret_code = -EBADR;
+	}
+
+	return ret_code;
+
+free_rx_buffs:
+	i--;
+	for (; i >= 0; i--)
+		idpf_free(hw, cq->bi.rx_buff[i]);
+
+	if (!cq->bi.rx_buff)
+		idpf_free(hw, cq->bi.rx_buff);
+
+err:
+	return ret_code;
+}
+
+/**
+ * cpfl_ctlq_init_rxq_bufs - populate receive queue descriptors with buf
+ * @cq: pointer to the specific Control queue
+ *
+ * Record the address of the receive queue DMA buffers in the descriptors.
+ * The buffers must have been previously allocated.
+ */
+static void
+cpfl_ctlq_init_rxq_bufs(struct idpf_ctlq_info *cq)
+{
+	int i = 0;
+
+	for (i = 0; i < cq->ring_size; i++) {
+		struct idpf_ctlq_desc *desc = IDPF_CTLQ_DESC(cq, i);
+		struct idpf_dma_mem *bi = cq->bi.rx_buff[i];
+
+		/* No buffer to post to descriptor, continue */
+		if (!bi)
+			continue;
+
+		desc->flags =
+			CPU_TO_LE16(IDPF_CTLQ_FLAG_BUF | IDPF_CTLQ_FLAG_RD);
+		desc->opcode = 0;
+		desc->datalen = CPU_TO_LE16(bi->size);
+		desc->ret_val = 0;
+		desc->cookie_high = 0;
+		desc->cookie_low = 0;
+		desc->params.indirect.addr_high =
+			CPU_TO_LE32(IDPF_HI_DWORD(bi->pa));
+		desc->params.indirect.addr_low =
+			CPU_TO_LE32(IDPF_LO_DWORD(bi->pa));
+		desc->params.indirect.param0 = 0;
+		desc->params.indirect.param1 = 0;
+	}
+}
+
+/**
+ * cpfl_ctlq_setup_regs - initialize control queue registers
+ * @cq: pointer to the specific control queue
+ * @q_create_info: structs containing info for each queue to be initialized
+ */
+static void
+cpfl_ctlq_setup_regs(struct idpf_ctlq_info *cq, struct cpfl_ctlq_create_info *q_create_info)
+{
+	/* set control queue registers in our local struct */
+	cq->reg.head = q_create_info->reg.head;
+	cq->reg.tail = q_create_info->reg.tail;
+	cq->reg.len = q_create_info->reg.len;
+	cq->reg.bah = q_create_info->reg.bah;
+	cq->reg.bal = q_create_info->reg.bal;
+	cq->reg.len_mask = q_create_info->reg.len_mask;
+	cq->reg.len_ena_mask = q_create_info->reg.len_ena_mask;
+	cq->reg.head_mask = q_create_info->reg.head_mask;
+}
+
+/**
+ * cpfl_ctlq_init_regs - Initialize control queue registers
+ * @hw: pointer to hw struct
+ * @cq: pointer to the specific Control queue
+ * @is_rxq: true if receive control queue, false otherwise
+ *
+ * Initialize registers. The caller is expected to have already initialized the
+ * descriptor ring memory and buffer memory
+ */
+static void
+cpfl_ctlq_init_regs(struct idpf_hw *hw, struct idpf_ctlq_info *cq, bool is_rxq)
+{
+	/* Update tail to post pre-allocated buffers for rx queues */
+	if (is_rxq)
+		wr32(hw, cq->reg.tail, (uint32_t)(cq->ring_size - 1));
+
+	/* For non-Mailbox control queues only TAIL need to be set */
+	if (cq->q_id != -1)
+		return;
+
+	/* Clear Head for both send or receive */
+	wr32(hw, cq->reg.head, 0);
+
+	/* set starting point */
+	wr32(hw, cq->reg.bal, IDPF_LO_DWORD(cq->desc_ring.pa));
+	wr32(hw, cq->reg.bah, IDPF_HI_DWORD(cq->desc_ring.pa));
+	wr32(hw, cq->reg.len, (cq->ring_size | cq->reg.len_ena_mask));
+}
+
+/**
+ * cpfl_ctlq_dealloc_ring_res - free up the descriptor buffer structure
+ * @hw: context info for the callback
+ * @cq: pointer to the specific control queue
+ *
+ * DMA buffers are released by the CP itself
+ */
+static void
+cpfl_ctlq_dealloc_ring_res(struct idpf_hw *hw __rte_unused, struct idpf_ctlq_info *cq)
+{
+	int i;
+
+	if (cq->cq_type == IDPF_CTLQ_TYPE_MAILBOX_RX ||
+	    cq->cq_type == IDPF_CTLQ_TYPE_CONFIG_RX) {
+		for (i = 0; i < cq->ring_size; i++)
+			idpf_free(hw, cq->bi.rx_buff[i]);
+		/* free the buffer header */
+		idpf_free(hw, cq->bi.rx_buff);
+	} else {
+		idpf_free(hw, cq->bi.tx_msg);
+	}
+}
+
+/**
+ * cpfl_ctlq_add - add one control queue
+ * @hw: pointer to hardware struct
+ * @qinfo: info for queue to be created
+ * @cq_out: (output) double pointer to control queue to be created
+ *
+ * Allocate and initialize a control queue and add it to the control queue list.
+ * The cq parameter will be allocated/initialized and passed back to the caller
+ * if no errors occur.
+ */
+int
+cpfl_ctlq_add(struct idpf_hw *hw, struct cpfl_ctlq_create_info *qinfo,
+	      struct idpf_ctlq_info **cq_out)
+{
+	struct idpf_ctlq_info *cq;
+	bool is_rxq = false;
+	int status = 0;
+
+	if (!qinfo->len || !qinfo->buf_size ||
+	    qinfo->len > IDPF_CTLQ_MAX_RING_SIZE ||
+	    qinfo->buf_size > IDPF_CTLQ_MAX_BUF_LEN)
+		return -EINVAL;
+
+	cq = (struct idpf_ctlq_info *)
+	     idpf_calloc(hw, 1, sizeof(struct idpf_ctlq_info));
+
+	if (!cq)
+		return -ENOMEM;
+
+	cq->cq_type = qinfo->type;
+	cq->q_id = qinfo->id;
+	cq->buf_size = qinfo->buf_size;
+	cq->ring_size = qinfo->len;
+
+	cq->next_to_use = 0;
+	cq->next_to_clean = 0;
+	cq->next_to_post = cq->ring_size - 1;
+
+	switch (qinfo->type) {
+	case IDPF_CTLQ_TYPE_EVENT_RX:
+	case IDPF_CTLQ_TYPE_CONFIG_RX:
+	case IDPF_CTLQ_TYPE_MAILBOX_RX:
+		is_rxq = true;
+		/* fallthrough */
+	case IDPF_CTLQ_TYPE_CONFIG_TX:
+	case IDPF_CTLQ_TYPE_MAILBOX_TX:
+		status = cpfl_ctlq_alloc_ring_res(hw, cq, qinfo);
+		break;
+
+	default:
+		status = -EINVAL;
+		break;
+	}
+
+	if (status)
+		goto init_free_q;
+
+	if (is_rxq) {
+		cpfl_ctlq_init_rxq_bufs(cq);
+	} else {
+		/* Allocate the array of msg pointers for TX queues */
+		cq->bi.tx_msg = (struct idpf_ctlq_msg **)
+			idpf_calloc(hw, qinfo->len,
+				    sizeof(struct idpf_ctlq_msg *));
+		if (!cq->bi.tx_msg) {
+			status = -ENOMEM;
+			goto init_dealloc_q_mem;
+		}
+	}
+
+	cpfl_ctlq_setup_regs(cq, qinfo);
+
+	cpfl_ctlq_init_regs(hw, cq, is_rxq);
+
+	idpf_init_lock(&cq->cq_lock);
+
+	LIST_INSERT_HEAD(&hw->cq_list_head, cq, cq_list);
+
+	*cq_out = cq;
+	return status;
+
+init_dealloc_q_mem:
+	/* free ring buffers and the ring itself */
+	cpfl_ctlq_dealloc_ring_res(hw, cq);
+init_free_q:
+	idpf_free(hw, cq);
+	cq = NULL;
+
+	return status;
+}
+
+/**
+ * cpfl_ctlq_send - send command to Control Queue (CTQ)
+ * @hw: pointer to hw struct
+ * @cq: handle to control queue struct to send on
+ * @num_q_msg: number of messages to send on control queue
+ * @q_msg: pointer to array of queue messages to be sent
+ *
+ * The caller is expected to allocate DMAable buffers and pass them to the
+ * send routine via the q_msg struct / control queue specific data struct.
+ * The control queue will hold a reference to each send message until
+ * the completion for that message has been cleaned.
+ */
+int
+cpfl_ctlq_send(struct idpf_hw *hw, struct idpf_ctlq_info *cq,
+	       uint16_t num_q_msg, struct idpf_ctlq_msg q_msg[])
+{
+	struct idpf_ctlq_desc *desc;
+	int num_desc_avail = 0;
+	int status = 0;
+	int i = 0;
+
+	if (!cq || !cq->ring_size)
+		return -ENOBUFS;
+
+	idpf_acquire_lock(&cq->cq_lock);
+
+	/* Ensure there are enough descriptors to send all messages */
+	num_desc_avail = IDPF_CTLQ_DESC_UNUSED(cq);
+	if (num_desc_avail == 0 || num_desc_avail < num_q_msg) {
+		status = -ENOSPC;
+		goto sq_send_command_out;
+	}
+
+	for (i = 0; i < num_q_msg; i++) {
+		struct idpf_ctlq_msg *msg = &q_msg[i];
+		uint64_t msg_cookie;
+
+		desc = IDPF_CTLQ_DESC(cq, cq->next_to_use);
+		desc->opcode = CPU_TO_LE16(msg->opcode);
+		desc->pfid_vfid = CPU_TO_LE16(msg->func_id);
+		msg_cookie = *(uint64_t *)&msg->cookie;
+		desc->cookie_high =
+			CPU_TO_LE32(IDPF_HI_DWORD(msg_cookie));
+		desc->cookie_low =
+			CPU_TO_LE32(IDPF_LO_DWORD(msg_cookie));
+		desc->flags = CPU_TO_LE16((msg->host_id & IDPF_HOST_ID_MASK) <<
+				IDPF_CTLQ_FLAG_HOST_ID_S);
+		if (msg->data_len) {
+			struct idpf_dma_mem *buff = msg->ctx.indirect.payload;
+
+			desc->datalen |= CPU_TO_LE16(msg->data_len);
+			desc->flags |= CPU_TO_LE16(IDPF_CTLQ_FLAG_BUF);
+			desc->flags |= CPU_TO_LE16(IDPF_CTLQ_FLAG_RD);
+			/* Update the address values in the desc with the pa
+			 * value for respective buffer
+			 */
+			desc->params.indirect.addr_high =
+				CPU_TO_LE32(IDPF_HI_DWORD(buff->pa));
+			desc->params.indirect.addr_low =
+				CPU_TO_LE32(IDPF_LO_DWORD(buff->pa));
+			idpf_memcpy(&desc->params, msg->ctx.indirect.context,
+				    IDPF_INDIRECT_CTX_SIZE, IDPF_NONDMA_TO_DMA);
+		} else {
+			idpf_memcpy(&desc->params, msg->ctx.direct,
+				    IDPF_DIRECT_CTX_SIZE, IDPF_NONDMA_TO_DMA);
+		}
+
+		/* Store buffer info */
+		cq->bi.tx_msg[cq->next_to_use] = msg;
+		(cq->next_to_use)++;
+		if (cq->next_to_use == cq->ring_size)
+			cq->next_to_use = 0;
+	}
+
+	/* Force memory write to complete before letting hardware
+	 * know that there are new descriptors to fetch.
+	 */
+	idpf_wmb();
+	wr32(hw, cq->reg.tail, cq->next_to_use);
+
+sq_send_command_out:
+	idpf_release_lock(&cq->cq_lock);
+
+	return status;
+}
+
+/**
+ * __cpfl_ctlq_clean_sq - helper function to reclaim descriptors on HW write
+ * back for the requested queue
+ * @cq: pointer to the specific Control queue
+ * @clean_count: (input|output) number of descriptors to clean as input, and
+ * number of descriptors actually cleaned as output
+ * @msg_status: (output) pointer to msg pointer array to be populated; needs
+ * to be allocated by caller
+ * @force: (input) clean descriptors which were not done yet. Use with caution
+ * in kernel mode only
+ *
+ * Returns an array of message pointers associated with the cleaned
+ * descriptors. The pointers are to the original ctlq_msgs sent on the cleaned
+ * descriptors.  The status will be returned for each; any messages that failed
+ * to send will have a non-zero status. The caller is expected to free original
+ * ctlq_msgs and free or reuse the DMA buffers.
+ */
+static int
+__cpfl_ctlq_clean_sq(struct idpf_ctlq_info *cq, uint16_t *clean_count,
+		     struct idpf_ctlq_msg *msg_status[], bool force)
+{
+	struct idpf_ctlq_desc *desc;
+	uint16_t i = 0, num_to_clean;
+	uint16_t ntc, desc_err;
+	int ret = 0;
+
+	if (!cq || !cq->ring_size)
+		return -ENOBUFS;
+
+	if (*clean_count == 0)
+		return 0;
+	if (*clean_count > cq->ring_size)
+		return -EINVAL;
+
+	idpf_acquire_lock(&cq->cq_lock);
+	ntc = cq->next_to_clean;
+	num_to_clean = *clean_count;
+
+	for (i = 0; i < num_to_clean; i++) {
+		/* Fetch next descriptor and check if marked as done */
+		desc = IDPF_CTLQ_DESC(cq, ntc);
+		if (!force && !(LE16_TO_CPU(desc->flags) & IDPF_CTLQ_FLAG_DD))
+			break;
+
+		desc_err = LE16_TO_CPU(desc->ret_val);
+		if (desc_err) {
+			/* strip off FW internal code */
+			desc_err &= 0xff;
+		}
+
+		msg_status[i] = cq->bi.tx_msg[ntc];
+		if (!msg_status[i])
+			break;
+		msg_status[i]->status = desc_err;
+		cq->bi.tx_msg[ntc] = NULL;
+		/* Zero out any stale data */
+		idpf_memset(desc, 0, sizeof(*desc), IDPF_DMA_MEM);
+		ntc++;
+		if (ntc == cq->ring_size)
+			ntc = 0;
+	}
+
+	cq->next_to_clean = ntc;
+	idpf_release_lock(&cq->cq_lock);
+
+	/* Return number of descriptors actually cleaned */
+	*clean_count = i;
+
+	return ret;
+}
+
+/**
+ * cpfl_ctlq_clean_sq - reclaim send descriptors on HW write back for the
+ * requested queue
+ * @cq: pointer to the specific Control queue
+ * @clean_count: (input|output) number of descriptors to clean as input, and
+ * number of descriptors actually cleaned as output
+ * @msg_status: (output) pointer to msg pointer array to be populated; needs
+ * to be allocated by caller
+ *
+ * Returns an array of message pointers associated with the cleaned
+ * descriptors. The pointers are to the original ctlq_msgs sent on the cleaned
+ * descriptors.  The status will be returned for each; any messages that failed
+ * to send will have a non-zero status. The caller is expected to free original
+ * ctlq_msgs and free or reuse the DMA buffers.
+ */
+int
+cpfl_ctlq_clean_sq(struct idpf_ctlq_info *cq, uint16_t *clean_count,
+		   struct idpf_ctlq_msg *msg_status[])
+{
+	return __cpfl_ctlq_clean_sq(cq, clean_count, msg_status, false);
+}
+
+/**
+ * cpfl_ctlq_post_rx_buffs - post buffers to descriptor ring
+ * @hw: pointer to hw struct
+ * @cq: pointer to control queue handle
+ * @buff_count: (input|output) input is number of buffers caller is trying to
+ * return; output is number of buffers that were not posted
+ * @buffs: array of pointers to dma mem structs to be given to hardware
+ *
+ * Caller uses this function to return DMA buffers to the descriptor ring after
+ * consuming them; buff_count will be the number of buffers.
+ *
+ * Note: this function needs to be called after a receive call even
+ * if there are no DMA buffers to be returned, i.e. buff_count = 0,
+ * buffs = NULL to support direct commands
+ */
+int
+cpfl_ctlq_post_rx_buffs(struct idpf_hw *hw, struct idpf_ctlq_info *cq,
+			uint16_t *buff_count, struct idpf_dma_mem **buffs)
+{
+	struct idpf_ctlq_desc *desc;
+	uint16_t ntp = cq->next_to_post;
+	bool buffs_avail = false;
+	uint16_t tbp = ntp + 1;
+	int status = 0;
+	int i = 0;
+
+	if (*buff_count > cq->ring_size)
+		return -EINVAL;
+
+	if (*buff_count > 0)
+		buffs_avail = true;
+	idpf_acquire_lock(&cq->cq_lock);
+	if (tbp >= cq->ring_size)
+		tbp = 0;
+
+	if (tbp == cq->next_to_clean)
+		/* Nothing to do */
+		goto post_buffs_out;
+
+	/* Post buffers for as many as provided or up until the last one used */
+	while (ntp != cq->next_to_clean) {
+		desc = IDPF_CTLQ_DESC(cq, ntp);
+		if (cq->bi.rx_buff[ntp])
+			goto fill_desc;
+		if (!buffs_avail) {
+			/* If the caller hasn't given us any buffers or
+			 * there are none left, search the ring itself
+			 * for an available buffer to move to this
+			 * entry starting at the next entry in the ring
+			 */
+			tbp = ntp + 1;
+			/* Wrap ring if necessary */
+			if (tbp >= cq->ring_size)
+				tbp = 0;
+
+			while (tbp != cq->next_to_clean) {
+				if (cq->bi.rx_buff[tbp]) {
+					cq->bi.rx_buff[ntp] =
+						cq->bi.rx_buff[tbp];
+					cq->bi.rx_buff[tbp] = NULL;
+
+					/* Found a buffer, no need to
+					 * search anymore
+					 */
+					break;
+				}
+
+				/* Wrap ring if necessary */
+				tbp++;
+				if (tbp >= cq->ring_size)
+					tbp = 0;
+			}
+
+			if (tbp == cq->next_to_clean)
+				goto post_buffs_out;
+		} else {
+			/* Give back pointer to DMA buffer */
+			cq->bi.rx_buff[ntp] = buffs[i];
+			i++;
+
+			if (i >= *buff_count)
+				buffs_avail = false;
+		}
+
+fill_desc:
+		desc->flags =
+			CPU_TO_LE16(IDPF_CTLQ_FLAG_BUF | IDPF_CTLQ_FLAG_RD);
+
+		/* Post buffers to descriptor */
+		desc->datalen = CPU_TO_LE16(cq->bi.rx_buff[ntp]->size);
+		desc->params.indirect.addr_high =
+			CPU_TO_LE32(IDPF_HI_DWORD(cq->bi.rx_buff[ntp]->pa));
+		desc->params.indirect.addr_low =
+			CPU_TO_LE32(IDPF_LO_DWORD(cq->bi.rx_buff[ntp]->pa));
+
+		ntp++;
+		if (ntp == cq->ring_size)
+			ntp = 0;
+	}
+
+post_buffs_out:
+	/* Only update tail if buffers were actually posted */
+	if (cq->next_to_post != ntp) {
+		if (ntp)
+			/* Update next_to_post to ntp - 1 since current ntp
+			 * will not have a buffer
+			 */
+			cq->next_to_post = ntp - 1;
+		else
+			/* Wrap to end of end ring since current ntp is 0 */
+			cq->next_to_post = cq->ring_size - 1;
+
+		wr32(hw, cq->reg.tail, cq->next_to_post);
+	}
+
+	idpf_release_lock(&cq->cq_lock);
+	/* return the number of buffers that were not posted */
+	*buff_count = *buff_count - i;
+
+	return status;
+}
+
+/**
+ * cpfl_ctlq_recv - receive control queue message call back
+ * @cq: pointer to control queue handle to receive on
+ * @num_q_msg: (input|output) input number of messages that should be received;
+ * output number of messages actually received
+ * @q_msg: (output) array of received control queue messages on this q;
+ * needs to be pre-allocated by caller for as many messages as requested
+ *
+ * Called by interrupt handler or polling mechanism. Caller is expected
+ * to free buffers
+ */
+int
+cpfl_ctlq_recv(struct idpf_ctlq_info *cq, uint16_t *num_q_msg,
+	       struct idpf_ctlq_msg *q_msg)
+{
+	uint16_t num_to_clean, ntc, ret_val, flags;
+	struct idpf_ctlq_desc *desc;
+	int ret_code = 0;
+	uint16_t i = 0;
+
+	if (!cq || !cq->ring_size)
+		return -ENOBUFS;
+
+	if (*num_q_msg == 0)
+		return 0;
+	else if (*num_q_msg > cq->ring_size)
+		return -EINVAL;
+
+	/* take the lock before we start messing with the ring */
+	idpf_acquire_lock(&cq->cq_lock);
+	ntc = cq->next_to_clean;
+	num_to_clean = *num_q_msg;
+
+	for (i = 0; i < num_to_clean; i++) {
+		/* Fetch next descriptor and check if marked as done */
+		desc = IDPF_CTLQ_DESC(cq, ntc);
+		flags = LE16_TO_CPU(desc->flags);
+		if (!(flags & IDPF_CTLQ_FLAG_DD))
+			break;
+
+		ret_val = LE16_TO_CPU(desc->ret_val);
+		q_msg[i].vmvf_type = (flags &
+				     (IDPF_CTLQ_FLAG_FTYPE_VM |
+				      IDPF_CTLQ_FLAG_FTYPE_PF)) >>
+				      IDPF_CTLQ_FLAG_FTYPE_S;
+
+		if (flags & IDPF_CTLQ_FLAG_ERR)
+			ret_code = -EBADMSG;
+
+		q_msg[i].cookie.mbx.chnl_opcode = LE32_TO_CPU(desc->cookie_high);
+		q_msg[i].cookie.mbx.chnl_retval = LE32_TO_CPU(desc->cookie_low);
+		q_msg[i].opcode = LE16_TO_CPU(desc->opcode);
+		q_msg[i].data_len = LE16_TO_CPU(desc->datalen);
+		q_msg[i].status = ret_val;
+
+		if (desc->datalen) {
+			idpf_memcpy(q_msg[i].ctx.indirect.context,
+				    &desc->params.indirect,
+				    IDPF_INDIRECT_CTX_SIZE,
+				    IDPF_DMA_TO_NONDMA);
+
+			/* Assign pointer to dma buffer to ctlq_msg array
+			 * to be given to upper layer
+			 */
+			q_msg[i].ctx.indirect.payload = cq->bi.rx_buff[ntc];
+
+			/* Zero out pointer to DMA buffer info;
+			 * will be repopulated by post buffers API
+			 */
+			cq->bi.rx_buff[ntc] = NULL;
+		} else {
+			idpf_memcpy(q_msg[i].ctx.direct,
+				    desc->params.raw,
+				    IDPF_DIRECT_CTX_SIZE,
+				    IDPF_DMA_TO_NONDMA);
+		}
+
+		/* Zero out stale data in descriptor */
+		idpf_memset(desc, 0, sizeof(struct idpf_ctlq_desc),
+			    IDPF_DMA_MEM);
+
+		ntc++;
+		if (ntc == cq->ring_size)
+			ntc = 0;
+	};
+
+	cq->next_to_clean = ntc;
+	idpf_release_lock(&cq->cq_lock);
+	*num_q_msg = i;
+	if (*num_q_msg == 0)
+		ret_code = -ENOMSG;
+
+	return ret_code;
+}
+
+int
+cpfl_vport_ctlq_add(struct idpf_hw *hw, struct cpfl_ctlq_create_info *qinfo,
+		    struct idpf_ctlq_info **cq)
+{
+	return cpfl_ctlq_add(hw, qinfo, cq);
+}
+
+/**
+ * cpfl_ctlq_shutdown - shutdown the CQ
+ * The main shutdown routine for any controq queue
+ */
+static void
+cpfl_ctlq_shutdown(struct idpf_hw *hw, struct idpf_ctlq_info *cq)
+{
+	idpf_acquire_lock(&cq->cq_lock);
+
+	if (!cq->ring_size)
+		goto shutdown_sq_out;
+
+	/* free ring buffers and the ring itself */
+	cpfl_ctlq_dealloc_ring_res(hw, cq);
+
+	/* Set ring_size to 0 to indicate uninitialized queue */
+	cq->ring_size = 0;
+
+shutdown_sq_out:
+	idpf_release_lock(&cq->cq_lock);
+	idpf_destroy_lock(&cq->cq_lock);
+}
+
+/**
+ * cpfl_ctlq_remove - deallocate and remove specified control queue
+ */
+static void
+cpfl_ctlq_remove(struct idpf_hw *hw, struct idpf_ctlq_info *cq)
+{
+	LIST_REMOVE(cq, cq_list);
+	cpfl_ctlq_shutdown(hw, cq);
+	idpf_free(hw, cq);
+}
+
+void
+cpfl_vport_ctlq_remove(struct idpf_hw *hw, struct idpf_ctlq_info *cq)
+{
+	cpfl_ctlq_remove(hw, cq);
+}
+
+int
+cpfl_vport_ctlq_send(struct idpf_hw *hw, struct idpf_ctlq_info *cq,
+		     uint16_t num_q_msg, struct idpf_ctlq_msg q_msg[])
+{
+	return cpfl_ctlq_send(hw, cq, num_q_msg, q_msg);
+}
+
+int
+cpfl_vport_ctlq_recv(struct idpf_ctlq_info *cq, uint16_t *num_q_msg,
+		     struct idpf_ctlq_msg q_msg[])
+{
+	return cpfl_ctlq_recv(cq, num_q_msg, q_msg);
+}
+
+int
+cpfl_vport_ctlq_post_rx_buffs(struct idpf_hw *hw, struct idpf_ctlq_info *cq,
+			      uint16_t *buff_count, struct idpf_dma_mem **buffs)
+{
+	return cpfl_ctlq_post_rx_buffs(hw, cq, buff_count, buffs);
+}
+
+int
+cpfl_vport_ctlq_clean_sq(struct idpf_ctlq_info *cq, uint16_t *clean_count,
+			 struct idpf_ctlq_msg *msg_status[])
+{
+	return cpfl_ctlq_clean_sq(cq, clean_count, msg_status);
+}
diff --git a/drivers/net/cpfl/cpfl_controlq.h b/drivers/net/cpfl/cpfl_controlq.h
new file mode 100644
index 0000000000..740ae6522c
--- /dev/null
+++ b/drivers/net/cpfl/cpfl_controlq.h
@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2001-2023 Intel Corporation
+ */
+
+#ifndef _CPFL_CONTROLQ_H_
+#define _CPFL_CONTROLQ_H_
+
+#include "base/idpf_osdep.h"
+#include "base/idpf_controlq_api.h"
+
+#define CPFL_CTLQ_DESCRIPTOR_SIZE	32
+#define CPFL_CTLQ_MAILBOX_BUFFER_SIZE	4096
+#define CPFL_CTLQ_CFGQ_BUFFER_SIZE	256
+#define CPFL_DFLT_MBX_RING_LEN		512
+#define CPFL_CFGQ_RING_LEN		512
+
+/* CRQ/CSQ specific error codes */
+#define CPFL_ERR_CTLQ_ERROR             -74     /* -EBADMSG */
+#define CPFL_ERR_CTLQ_TIMEOUT           -110    /* -ETIMEDOUT */
+#define CPFL_ERR_CTLQ_FULL              -28     /* -ENOSPC */
+#define CPFL_ERR_CTLQ_NO_WORK           -42     /* -ENOMSG */
+#define CPFL_ERR_CTLQ_EMPTY             -105    /* -ENOBUFS */
+
+/* Generic queue info structures */
+/* MB, CONFIG and EVENT q do not have extended info */
+struct cpfl_ctlq_create_info {
+	enum idpf_ctlq_type type;
+	int id; /* absolute queue offset passed as input
+		 * -1 for default mailbox if present
+		 */
+	uint16_t len; /* Queue length passed as input */
+	uint16_t buf_size; /* buffer size passed as input */
+	uint64_t base_address; /* output, HPA of the Queue start  */
+	struct idpf_ctlq_reg reg; /* registers accessed by ctlqs */
+	/* Pass down previously allocated descriptor ring and buffer memory
+	 * for each control queue to be created
+	 */
+	struct idpf_dma_mem ring_mem;
+	/* The CP will allocate one large buffer that the CPFlib will piece
+	 * into individual buffers for each descriptor
+	 */
+	struct idpf_dma_mem buf_mem;
+
+	int ext_info_size;
+	void *ext_info; /* Specific to q type */
+};
+
+int cpfl_ctlq_alloc_ring_res(struct idpf_hw *hw,
+			     struct idpf_ctlq_info *cq,
+			     struct cpfl_ctlq_create_info *qinfo);
+int cpfl_ctlq_add(struct idpf_hw *hw,
+		  struct cpfl_ctlq_create_info *qinfo,
+		  struct idpf_ctlq_info **cq);
+int cpfl_ctlq_send(struct idpf_hw *hw, struct idpf_ctlq_info *cq,
+		   u16 num_q_msg, struct idpf_ctlq_msg q_msg[]);
+int cpfl_ctlq_clean_sq(struct idpf_ctlq_info *cq, u16 *clean_count,
+		       struct idpf_ctlq_msg *msg_status[]);
+int cpfl_ctlq_post_rx_buffs(struct idpf_hw *hw, struct idpf_ctlq_info *cq,
+			    u16 *buff_count, struct idpf_dma_mem **buffs);
+int cpfl_ctlq_recv(struct idpf_ctlq_info *cq, u16 *num_q_msg,
+		   struct idpf_ctlq_msg *q_msg);
+int cpfl_vport_ctlq_add(struct idpf_hw *hw,
+			struct cpfl_ctlq_create_info *qinfo,
+			struct idpf_ctlq_info **cq);
+void cpfl_vport_ctlq_remove(struct idpf_hw *hw, struct idpf_ctlq_info *cq);
+int cpfl_vport_ctlq_send(struct idpf_hw *hw, struct idpf_ctlq_info *cq,
+			 u16 num_q_msg, struct idpf_ctlq_msg q_msg[]);
+int cpfl_vport_ctlq_recv(struct idpf_ctlq_info *cq, u16 *num_q_msg,
+			 struct idpf_ctlq_msg q_msg[]);
+
+int cpfl_vport_ctlq_post_rx_buffs(struct idpf_hw *hw, struct idpf_ctlq_info *cq,
+				  u16 *buff_count, struct idpf_dma_mem **buffs);
+int cpfl_vport_ctlq_clean_sq(struct idpf_ctlq_info *cq, u16 *clean_count,
+			     struct idpf_ctlq_msg *msg_status[]);
+#endif
diff --git a/drivers/net/cpfl/cpfl_ethdev.c b/drivers/net/cpfl/cpfl_ethdev.c
index c350728861..a2bc6784d0 100644
--- a/drivers/net/cpfl/cpfl_ethdev.c
+++ b/drivers/net/cpfl/cpfl_ethdev.c
@@ -1698,6 +1698,10 @@ cpfl_handle_vchnl_event_msg(struct cpfl_adapter_ext *adapter, uint8_t *msg, uint
 		return;
 	}
 
+	/* ignore if it is ctrl vport */
+	if (adapter->ctrl_vport.base.vport_id == vc_event->vport_id)
+		return;
+
 	vport = cpfl_find_vport(adapter, vc_event->vport_id);
 	if (!vport) {
 		PMD_DRV_LOG(ERR, "Can't find vport.");
@@ -1893,6 +1897,262 @@ cpfl_dev_alarm_handler(void *param)
 	rte_eal_alarm_set(CPFL_ALARM_INTERVAL, cpfl_dev_alarm_handler, adapter);
 }
 
+static int
+cpfl_stop_cfgqs(struct cpfl_adapter_ext *adapter)
+{
+	int i, ret;
+
+	for (i = 0; i < CPFL_TX_CFGQ_NUM; i++) {
+		ret = idpf_vc_queue_switch(&adapter->ctrl_vport.base, i, false, false);
+		if (ret) {
+			PMD_DRV_LOG(ERR, "Fail to disable Tx config queue.");
+			return ret;
+		}
+	}
+
+	for (i = 0; i < CPFL_RX_CFGQ_NUM; i++) {
+		ret = idpf_vc_queue_switch(&adapter->ctrl_vport.base, i, true, false);
+		if (ret) {
+			PMD_DRV_LOG(ERR, "Fail to disable Rx config queue.");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int
+cpfl_start_cfgqs(struct cpfl_adapter_ext *adapter)
+{
+	int i, ret;
+
+	ret = cpfl_config_ctlq_tx(adapter);
+	if (ret) {
+		PMD_DRV_LOG(ERR, "Fail to configure Tx config queue.");
+		return ret;
+	}
+
+	ret = cpfl_config_ctlq_rx(adapter);
+	if (ret) {
+		PMD_DRV_LOG(ERR, "Fail to configure Rx config queue.");
+		return ret;
+	}
+
+	for (i = 0; i < CPFL_TX_CFGQ_NUM; i++) {
+		ret = idpf_vc_queue_switch(&adapter->ctrl_vport.base, i, false, true);
+		if (ret) {
+			PMD_DRV_LOG(ERR, "Fail to enable Tx config queue.");
+			return ret;
+		}
+	}
+
+	for (i = 0; i < CPFL_RX_CFGQ_NUM; i++) {
+		ret = idpf_vc_queue_switch(&adapter->ctrl_vport.base, i, true, true);
+		if (ret) {
+			PMD_DRV_LOG(ERR, "Fail to enable Rx config queue.");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static void
+cpfl_remove_cfgqs(struct cpfl_adapter_ext *adapter)
+{
+	struct idpf_hw *hw = (struct idpf_hw *)(&adapter->base.hw);
+	struct cpfl_ctlq_create_info *create_cfgq_info;
+	int i;
+
+	create_cfgq_info = adapter->cfgq_info;
+
+	for (i = 0; i < CPFL_CFGQ_NUM; i++) {
+		if (adapter->ctlqp[i])
+			cpfl_vport_ctlq_remove(hw, adapter->ctlqp[i]);
+		if (create_cfgq_info[i].ring_mem.va)
+			idpf_free_dma_mem(&adapter->base.hw, &create_cfgq_info[i].ring_mem);
+		if (create_cfgq_info[i].buf_mem.va)
+			idpf_free_dma_mem(&adapter->base.hw, &create_cfgq_info[i].buf_mem);
+	}
+}
+
+static int
+cpfl_add_cfgqs(struct cpfl_adapter_ext *adapter)
+{
+	struct idpf_ctlq_info *cfg_cq;
+	int ret = 0;
+	int i = 0;
+
+	for (i = 0; i < CPFL_CFGQ_NUM; i++) {
+		cfg_cq = NULL;
+		ret = cpfl_vport_ctlq_add((struct idpf_hw *)(&adapter->base.hw),
+					  &adapter->cfgq_info[i],
+					  &cfg_cq);
+		if (ret || !cfg_cq) {
+			PMD_DRV_LOG(ERR, "ctlq add failed for queue id: %d",
+				    adapter->cfgq_info[i].id);
+			cpfl_remove_cfgqs(adapter);
+			return ret;
+		}
+		PMD_DRV_LOG(INFO, "added cfgq to hw. queue id: %d",
+			    adapter->cfgq_info[i].id);
+		adapter->ctlqp[i] = cfg_cq;
+	}
+
+	return ret;
+}
+
+#define CPFL_CFGQ_RING_LEN		512
+#define CPFL_CFGQ_DESCRIPTOR_SIZE	32
+#define CPFL_CFGQ_BUFFER_SIZE		256
+#define CPFL_CFGQ_RING_SIZE		512
+
+static int
+cpfl_cfgq_setup(struct cpfl_adapter_ext *adapter)
+{
+	struct cpfl_ctlq_create_info *create_cfgq_info;
+	struct cpfl_vport *vport;
+	int i, err;
+	uint32_t ring_size = CPFL_CFGQ_RING_SIZE * sizeof(struct idpf_ctlq_desc);
+	uint32_t buf_size = CPFL_CFGQ_RING_SIZE * CPFL_CFGQ_BUFFER_SIZE;
+
+	vport = &adapter->ctrl_vport;
+	create_cfgq_info = adapter->cfgq_info;
+
+	for (i = 0; i < CPFL_CFGQ_NUM; i++) {
+		if (i % 2 == 0) {
+			/* Setup Tx config queue */
+			create_cfgq_info[i].id = vport->base.chunks_info.tx_start_qid + i / 2;
+			create_cfgq_info[i].type = IDPF_CTLQ_TYPE_CONFIG_TX;
+			create_cfgq_info[i].len = CPFL_CFGQ_RING_SIZE;
+			create_cfgq_info[i].buf_size = CPFL_CFGQ_BUFFER_SIZE;
+			memset(&create_cfgq_info[i].reg, 0, sizeof(struct idpf_ctlq_reg));
+			create_cfgq_info[i].reg.tail = vport->base.chunks_info.tx_qtail_start +
+				i / 2 * vport->base.chunks_info.tx_qtail_spacing;
+		} else {
+			/* Setup Rx config queue */
+			create_cfgq_info[i].id = vport->base.chunks_info.rx_start_qid + i / 2;
+			create_cfgq_info[i].type = IDPF_CTLQ_TYPE_CONFIG_RX;
+			create_cfgq_info[i].len = CPFL_CFGQ_RING_SIZE;
+			create_cfgq_info[i].buf_size = CPFL_CFGQ_BUFFER_SIZE;
+			memset(&create_cfgq_info[i].reg, 0, sizeof(struct idpf_ctlq_reg));
+			create_cfgq_info[i].reg.tail = vport->base.chunks_info.rx_qtail_start +
+				i / 2 * vport->base.chunks_info.rx_qtail_spacing;
+			if (!idpf_alloc_dma_mem(&adapter->base.hw, &create_cfgq_info[i].buf_mem,
+						buf_size)) {
+				err = -ENOMEM;
+				goto free_mem;
+			}
+		}
+		if (!idpf_alloc_dma_mem(&adapter->base.hw, &create_cfgq_info[i].ring_mem,
+					ring_size)) {
+			err = -ENOMEM;
+			goto free_mem;
+		}
+	}
+	return 0;
+free_mem:
+	for (i = 0; i < CPFL_CFGQ_NUM; i++) {
+		if (create_cfgq_info[i].ring_mem.va)
+			idpf_free_dma_mem(&adapter->base.hw, &create_cfgq_info[i].ring_mem);
+		if (create_cfgq_info[i].buf_mem.va)
+			idpf_free_dma_mem(&adapter->base.hw, &create_cfgq_info[i].buf_mem);
+	}
+	return err;
+}
+
+static int
+cpfl_init_ctrl_vport(struct cpfl_adapter_ext *adapter)
+{
+	struct cpfl_vport *vport = &adapter->ctrl_vport;
+	struct virtchnl2_create_vport *vport_info =
+		(struct virtchnl2_create_vport *)adapter->ctrl_vport_recv_info;
+	int i;
+
+	vport->itf.adapter = adapter;
+	vport->base.adapter = &adapter->base;
+	vport->base.vport_id = vport_info->vport_id;
+
+	for (i = 0; i < vport_info->chunks.num_chunks; i++) {
+		if (vport_info->chunks.chunks[i].type == VIRTCHNL2_QUEUE_TYPE_TX) {
+			vport->base.chunks_info.tx_start_qid =
+				vport_info->chunks.chunks[i].start_queue_id;
+			vport->base.chunks_info.tx_qtail_start =
+			vport_info->chunks.chunks[i].qtail_reg_start;
+			vport->base.chunks_info.tx_qtail_spacing =
+			vport_info->chunks.chunks[i].qtail_reg_spacing;
+		} else if (vport_info->chunks.chunks[i].type == VIRTCHNL2_QUEUE_TYPE_RX) {
+			vport->base.chunks_info.rx_start_qid =
+				vport_info->chunks.chunks[i].start_queue_id;
+			vport->base.chunks_info.rx_qtail_start =
+			vport_info->chunks.chunks[i].qtail_reg_start;
+			vport->base.chunks_info.rx_qtail_spacing =
+			vport_info->chunks.chunks[i].qtail_reg_spacing;
+		} else {
+			PMD_INIT_LOG(ERR, "Unsupported chunk type");
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static void
+cpfl_ctrl_path_close(struct cpfl_adapter_ext *adapter)
+{
+	cpfl_stop_cfgqs(adapter);
+	cpfl_remove_cfgqs(adapter);
+	idpf_vc_vport_destroy(&adapter->ctrl_vport.base);
+}
+
+static int
+cpfl_ctrl_path_open(struct cpfl_adapter_ext *adapter)
+{
+	int ret;
+
+	ret = cpfl_vc_create_ctrl_vport(adapter);
+	if (ret) {
+		PMD_INIT_LOG(ERR, "Failed to create control vport");
+		return ret;
+	}
+
+	ret = cpfl_init_ctrl_vport(adapter);
+	if (ret) {
+		PMD_INIT_LOG(ERR, "Failed to init control vport");
+		goto err_init_ctrl_vport;
+	}
+
+	ret = cpfl_cfgq_setup(adapter);
+	if (ret) {
+		PMD_INIT_LOG(ERR, "Failed to setup control queues");
+		goto err_cfgq_setup;
+	}
+
+	ret = cpfl_add_cfgqs(adapter);
+	if (ret) {
+		PMD_INIT_LOG(ERR, "Failed to add control queues");
+		goto err_add_cfgq;
+	}
+
+	ret = cpfl_start_cfgqs(adapter);
+	if (ret) {
+		PMD_INIT_LOG(ERR, "Failed to start control queues");
+		goto err_start_cfgqs;
+	}
+
+	return 0;
+
+err_start_cfgqs:
+	cpfl_stop_cfgqs(adapter);
+err_add_cfgq:
+	cpfl_remove_cfgqs(adapter);
+err_cfgq_setup:
+err_init_ctrl_vport:
+	idpf_vc_vport_destroy(&adapter->ctrl_vport.base);
+
+	return ret;
+}
+
 static struct virtchnl2_get_capabilities req_caps = {
 	.csum_caps =
 	VIRTCHNL2_CAP_TX_CSUM_L3_IPV4          |
@@ -2060,6 +2320,12 @@ cpfl_adapter_ext_init(struct rte_pci_device *pci_dev, struct cpfl_adapter_ext *a
 		goto err_vports_alloc;
 	}
 
+	ret = cpfl_ctrl_path_open(adapter);
+	if (ret) {
+		PMD_INIT_LOG(ERR, "Failed to setup control path");
+		goto err_create_ctrl_vport;
+	}
+
 #ifdef RTE_HAS_JANSSON
 	ret = cpfl_flow_init(adapter);
 	if (ret) {
@@ -2076,7 +2342,10 @@ cpfl_adapter_ext_init(struct rte_pci_device *pci_dev, struct cpfl_adapter_ext *a
 
 #ifdef RTE_HAS_JANSSON
 err_flow_init:
+	cpfl_ctrl_path_close(adapter);
 #endif
+err_create_ctrl_vport:
+	rte_free(adapter->vports);
 err_vports_alloc:
 	rte_eal_alarm_cancel(cpfl_dev_alarm_handler, adapter);
 	cpfl_repr_allowlist_uninit(adapter);
@@ -2315,6 +2584,7 @@ cpfl_adapter_ext_deinit(struct cpfl_adapter_ext *adapter)
 #ifdef RTE_HAS_JANSSON
 	cpfl_flow_uninit(adapter);
 #endif
+	cpfl_ctrl_path_close(adapter);
 	rte_eal_alarm_cancel(cpfl_dev_alarm_handler, adapter);
 	cpfl_vport_map_uninit(adapter);
 	idpf_adapter_deinit(&adapter->base);
diff --git a/drivers/net/cpfl/cpfl_ethdev.h b/drivers/net/cpfl/cpfl_ethdev.h
index 69bf32cfbd..7f83d170d7 100644
--- a/drivers/net/cpfl/cpfl_ethdev.h
+++ b/drivers/net/cpfl/cpfl_ethdev.h
@@ -22,6 +22,7 @@
 #include "cpfl_logs.h"
 #include "cpfl_cpchnl.h"
 #include "cpfl_representor.h"
+#include "cpfl_controlq.h"
 
 /* Currently, backend supports up to 8 vports */
 #define CPFL_MAX_VPORT_NUM	8
@@ -82,6 +83,10 @@
 #define CPFL_META_CHUNK_LENGTH	1024
 #define CPFL_META_LENGTH	32
 
+#define CPFL_RX_CFGQ_NUM	4
+#define CPFL_TX_CFGQ_NUM	4
+#define CPFL_CFGQ_NUM		8
+
 /* bit[15:14] type
  * bit[13] host/accelerator core
  * bit[12] apf/cpf
@@ -212,6 +217,12 @@ struct cpfl_adapter_ext {
 	struct cpfl_flow_js_parser *flow_parser;
 
 	struct cpfl_metadata meta;
+
+	/* ctrl vport and ctrl queues. */
+	struct cpfl_vport ctrl_vport;
+	uint8_t ctrl_vport_recv_info[IDPF_DFLT_MBX_BUF_SIZE];
+	struct idpf_ctlq_info *ctlqp[CPFL_CFGQ_NUM];
+	struct cpfl_ctlq_create_info cfgq_info[CPFL_CFGQ_NUM];
 };
 
 TAILQ_HEAD(cpfl_adapter_list, cpfl_adapter_ext);
@@ -226,6 +237,9 @@ int cpfl_cc_vport_info_get(struct cpfl_adapter_ext *adapter,
 			   struct cpchnl2_vport_id *vport_id,
 			   struct cpfl_vport_id *vi,
 			   struct cpchnl2_get_vport_info_response *response);
+int cpfl_vc_create_ctrl_vport(struct cpfl_adapter_ext *adapter);
+int cpfl_config_ctlq_rx(struct cpfl_adapter_ext *adapter);
+int cpfl_config_ctlq_tx(struct cpfl_adapter_ext *adapter);
 
 #define CPFL_DEV_TO_PCI(eth_dev)		\
 	RTE_DEV_TO_PCI((eth_dev)->device)
diff --git a/drivers/net/cpfl/cpfl_vchnl.c b/drivers/net/cpfl/cpfl_vchnl.c
index a21a4a451f..932840a972 100644
--- a/drivers/net/cpfl/cpfl_vchnl.c
+++ b/drivers/net/cpfl/cpfl_vchnl.c
@@ -70,3 +70,147 @@ cpfl_cc_vport_info_get(struct cpfl_adapter_ext *adapter,
 
 	return 0;
 }
+
+int
+cpfl_vc_create_ctrl_vport(struct cpfl_adapter_ext *adapter)
+{
+	struct virtchnl2_create_vport vport_msg;
+	struct idpf_cmd_info args;
+	int err = -1;
+
+	memset(&vport_msg, 0, sizeof(struct virtchnl2_create_vport));
+	vport_msg.vport_type = rte_cpu_to_le_16(VIRTCHNL2_VPORT_TYPE_DEFAULT);
+	vport_msg.txq_model = rte_cpu_to_le_16(VIRTCHNL2_QUEUE_MODEL_SINGLE);
+	vport_msg.rxq_model = rte_cpu_to_le_16(VIRTCHNL2_QUEUE_MODEL_SINGLE);
+	vport_msg.num_tx_q = CPFL_TX_CFGQ_NUM;
+	vport_msg.num_tx_complq = 0;
+	vport_msg.num_rx_q = CPFL_RX_CFGQ_NUM;
+	vport_msg.num_rx_bufq = 0;
+
+	memset(&args, 0, sizeof(args));
+	args.ops = VIRTCHNL2_OP_CREATE_VPORT;
+	args.in_args = (uint8_t *)&vport_msg;
+	args.in_args_size = sizeof(vport_msg);
+	args.out_buffer = adapter->base.mbx_resp;
+	args.out_size = IDPF_DFLT_MBX_BUF_SIZE;
+
+	err = idpf_vc_cmd_execute(&adapter->base, &args);
+	if (err) {
+		PMD_DRV_LOG(ERR,
+			    "Failed to execute command of VIRTCHNL2_OP_CREATE_VPORT");
+		return err;
+	}
+
+	rte_memcpy(adapter->ctrl_vport_recv_info, args.out_buffer,
+		   IDPF_DFLT_MBX_BUF_SIZE);
+	return err;
+}
+
+int
+cpfl_config_ctlq_rx(struct cpfl_adapter_ext *adapter)
+{
+	struct cpfl_vport *vport = &adapter->ctrl_vport;
+	struct virtchnl2_config_rx_queues *vc_rxqs = NULL;
+	struct virtchnl2_rxq_info *rxq_info;
+	struct idpf_cmd_info args;
+	uint16_t num_qs;
+	int size, err, i;
+
+	if (vport->base.rxq_model != VIRTCHNL2_QUEUE_MODEL_SINGLE) {
+		PMD_DRV_LOG(ERR, "This rxq model isn't supported.");
+		err = -EINVAL;
+		return err;
+	}
+
+	num_qs = CPFL_RX_CFGQ_NUM;
+	size = sizeof(*vc_rxqs) + (num_qs - 1) *
+		sizeof(struct virtchnl2_rxq_info);
+	vc_rxqs = rte_zmalloc("cfg_rxqs", size, 0);
+	if (!vc_rxqs) {
+		PMD_DRV_LOG(ERR, "Failed to allocate virtchnl2_config_rx_queues");
+		err = -ENOMEM;
+		return err;
+	}
+	vc_rxqs->vport_id = vport->base.vport_id;
+	vc_rxqs->num_qinfo = num_qs;
+
+	for (i = 0; i < num_qs; i++) {
+		rxq_info = &vc_rxqs->qinfo[i];
+		rxq_info->dma_ring_addr = adapter->ctlqp[2 * i + 1]->desc_ring.pa;
+		rxq_info->type = VIRTCHNL2_QUEUE_TYPE_CONFIG_RX;
+		rxq_info->queue_id = adapter->cfgq_info[2 * i + 1].id;
+		rxq_info->model = VIRTCHNL2_QUEUE_MODEL_SINGLE;
+		rxq_info->data_buffer_size = adapter->cfgq_info[2 * i + 1].buf_size;
+		rxq_info->max_pkt_size = vport->base.max_pkt_len;
+		rxq_info->desc_ids = VIRTCHNL2_RXDID_2_FLEX_SQ_NIC_M;
+		rxq_info->qflags |= VIRTCHNL2_RX_DESC_SIZE_32BYTE;
+		rxq_info->ring_len = adapter->cfgq_info[2 * i + 1].len;
+	}
+
+	memset(&args, 0, sizeof(args));
+	args.ops = VIRTCHNL2_OP_CONFIG_RX_QUEUES;
+	args.in_args = (uint8_t *)vc_rxqs;
+	args.in_args_size = size;
+	args.out_buffer = adapter->base.mbx_resp;
+	args.out_size = IDPF_DFLT_MBX_BUF_SIZE;
+
+	err = idpf_vc_cmd_execute(&adapter->base, &args);
+	rte_free(vc_rxqs);
+	if (err)
+		PMD_DRV_LOG(ERR, "Failed to execute command of VIRTCHNL2_OP_CONFIG_RX_QUEUES");
+
+	return err;
+}
+
+int
+cpfl_config_ctlq_tx(struct cpfl_adapter_ext *adapter)
+{
+	struct cpfl_vport *vport = &adapter->ctrl_vport;
+	struct virtchnl2_config_tx_queues *vc_txqs = NULL;
+	struct virtchnl2_txq_info *txq_info;
+	struct idpf_cmd_info args;
+	uint16_t num_qs;
+	int size, err, i;
+
+	if (vport->base.txq_model != VIRTCHNL2_QUEUE_MODEL_SINGLE) {
+		PMD_DRV_LOG(ERR, "This txq model isn't supported.");
+		err = -EINVAL;
+		return err;
+	}
+
+	num_qs = CPFL_TX_CFGQ_NUM;
+	size = sizeof(*vc_txqs) + (num_qs - 1) *
+		sizeof(struct virtchnl2_txq_info);
+	vc_txqs = rte_zmalloc("cfg_txqs", size, 0);
+	if (!vc_txqs) {
+		PMD_DRV_LOG(ERR, "Failed to allocate virtchnl2_config_tx_queues");
+		err = -ENOMEM;
+		return err;
+	}
+	vc_txqs->vport_id = vport->base.vport_id;
+	vc_txqs->num_qinfo = num_qs;
+
+	for (i = 0; i < num_qs; i++) {
+		txq_info = &vc_txqs->qinfo[i];
+		txq_info->dma_ring_addr = adapter->ctlqp[2 * i]->desc_ring.pa;
+		txq_info->type = VIRTCHNL2_QUEUE_TYPE_CONFIG_TX;
+		txq_info->queue_id = adapter->cfgq_info[2 * i].id;
+		txq_info->model = VIRTCHNL2_QUEUE_MODEL_SINGLE;
+		txq_info->sched_mode = VIRTCHNL2_TXQ_SCHED_MODE_QUEUE;
+		txq_info->ring_len = adapter->cfgq_info[2 * i].len;
+	}
+
+	memset(&args, 0, sizeof(args));
+	args.ops = VIRTCHNL2_OP_CONFIG_TX_QUEUES;
+	args.in_args = (uint8_t *)vc_txqs;
+	args.in_args_size = size;
+	args.out_buffer = adapter->base.mbx_resp;
+	args.out_size = IDPF_DFLT_MBX_BUF_SIZE;
+
+	err = idpf_vc_cmd_execute(&adapter->base, &args);
+	rte_free(vc_txqs);
+	if (err)
+		PMD_DRV_LOG(ERR, "Failed to execute command of VIRTCHNL2_OP_CONFIG_TX_QUEUES");
+
+	return err;
+}
diff --git a/drivers/net/cpfl/meson.build b/drivers/net/cpfl/meson.build
index f5654d5b0e..290ff1e655 100644
--- a/drivers/net/cpfl/meson.build
+++ b/drivers/net/cpfl/meson.build
@@ -18,6 +18,7 @@ sources = files(
         'cpfl_rxtx.c',
         'cpfl_vchnl.c',
         'cpfl_representor.c',
+        'cpfl_controlq.c',
 )
 
 if arch_subdir == 'x86'
-- 
2.25.1