[PATCH v3 1/3] net/enetc: enable Rx and Tx

[Gagandeep Singh <g.singh@nxp.com>]

Add RX and TX queue setup, datapath functions

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
---
 drivers/net/enetc/Makefile        |   3 +-
 drivers/net/enetc/base/enetc_hw.h |  19 +-
 drivers/net/enetc/enetc.h         |  25 ++-
 drivers/net/enetc/enetc_ethdev.c  | 326 +++++++++++++++++++++++++++++-
 drivers/net/enetc/enetc_rxtx.c    | 239 ++++++++++++++++++++++
 drivers/net/enetc/meson.build     |   3 +-
 6 files changed, 602 insertions(+), 13 deletions(-)
 create mode 100644 drivers/net/enetc/enetc_rxtx.c

diff --git a/drivers/net/enetc/Makefile b/drivers/net/enetc/Makefile
index 519153868..9895501db 100644
--- a/drivers/net/enetc/Makefile
+++ b/drivers/net/enetc/Makefile
@@ -14,8 +14,9 @@ EXPORT_MAP := rte_pmd_enetc_version.map
 LIBABIVER := 1
 
 SRCS-$(CONFIG_RTE_LIBRTE_ENETC_PMD) += enetc_ethdev.c
+SRCS-$(CONFIG_RTE_LIBRTE_ENETC_PMD) += enetc_rxtx.c
 
-LDLIBS += -lrte_eal
+LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool
 LDLIBS += -lrte_ethdev
 LDLIBS += -lrte_bus_pci
 
diff --git a/drivers/net/enetc/base/enetc_hw.h b/drivers/net/enetc/base/enetc_hw.h
index c962b9ca1..c74c94875 100644
--- a/drivers/net/enetc/base/enetc_hw.h
+++ b/drivers/net/enetc/base/enetc_hw.h
@@ -104,16 +104,19 @@ enum enetc_bdr_type {TX, RX};
 #define ETH_ADDR_LEN			6
 
 /* general register accessors */
-#define enetc_rd_reg(reg)	rte_read32((reg))
-#define enetc_wr_reg(reg, val)	rte_write32((val), (reg))
-#define enetc_rd(hw, off)	enetc_rd_reg((hw)->reg + (off))
-#define enetc_wr(hw, off, val)	enetc_wr_reg((hw)->reg + (off), val)
+#define enetc_rd_reg(reg)	rte_read32((void *)(reg))
+#define enetc_wr_reg(reg, val)	rte_write32((val), (void *)(reg))
+#define enetc_rd(hw, off)	enetc_rd_reg((size_t)(hw)->reg + (off))
+#define enetc_wr(hw, off, val)	enetc_wr_reg((size_t)(hw)->reg + (off), val)
 /* port register accessors - PF only */
-#define enetc_port_rd(hw, off)		enetc_rd_reg((hw)->port + (off))
-#define enetc_port_wr(hw, off, val)	enetc_wr_reg((hw)->port + (off), val)
+#define enetc_port_rd(hw, off)	enetc_rd_reg((size_t)(hw)->port + (off))
+#define enetc_port_wr(hw, off, val) \
+				enetc_wr_reg((size_t)(hw)->port + (off), val)
 /* global register accessors - PF only */
-#define enetc_global_rd(hw, off)	enetc_rd_reg((hw)->global + (off))
-#define enetc_global_wr(hw, off, val)	enetc_wr_reg((hw)->global + (off), val)
+#define enetc_global_rd(hw, off) \
+				enetc_rd_reg((size_t)(hw)->global + (off))
+#define enetc_global_wr(hw, off, val) \
+				enetc_wr_reg((size_t)(hw)->global + (off), val)
 /* BDR register accessors, see ENETC_BDR() */
 #define enetc_bdr_rd(hw, t, n, off) \
 				enetc_rd(hw, ENETC_BDR(t, n, off))
diff --git a/drivers/net/enetc/enetc.h b/drivers/net/enetc/enetc.h
index 9fa7c726c..140daf0dd 100644
--- a/drivers/net/enetc/enetc.h
+++ b/drivers/net/enetc/enetc.h
@@ -18,7 +18,11 @@
 #define MAX_RX_RINGS	1
 
 /* Max BD counts per Ring. */
-#define MAX_BD_COUNT	256
+#define MAX_BD_COUNT	64000
+/* Min BD counts per Ring. */
+#define MIN_BD_COUNT	32
+/* BD ALIGN */
+#define BD_ALIGN	8
 
 /*
  * upper_32_bits - return bits 32-63 of a number
@@ -87,4 +91,23 @@ struct enetc_eth_adapter {
 #define ENETC_REG_WRITE(addr, val) (*(uint32_t *)addr = val)
 #define ENETC_REG_WRITE_RELAXED(addr, val) (*(uint32_t *)addr = val)
 
+/*
+ * RX/TX ENETC function prototypes
+ */
+uint16_t enetc_xmit_pkts(void *txq, struct rte_mbuf **tx_pkts,
+		uint16_t nb_pkts);
+uint16_t enetc_recv_pkts(void *rxq, struct rte_mbuf **rx_pkts,
+		uint16_t nb_pkts);
+
+
+int enetc_refill_rx_ring(struct enetc_bdr *rx_ring, const int buff_cnt);
+
+static inline int
+enetc_bd_unused(struct enetc_bdr *bdr)
+{
+	if (bdr->next_to_clean > bdr->next_to_use)
+		return bdr->next_to_clean - bdr->next_to_use - 1;
+
+	return bdr->bd_count + bdr->next_to_clean - bdr->next_to_use - 1;
+}
 #endif /* _ENETC_H_ */
diff --git a/drivers/net/enetc/enetc_ethdev.c b/drivers/net/enetc/enetc_ethdev.c
index 47e2a8ebf..2d90d8fd5 100644
--- a/drivers/net/enetc/enetc_ethdev.c
+++ b/drivers/net/enetc/enetc_ethdev.c
@@ -19,6 +19,15 @@ static void enetc_dev_infos_get(struct rte_eth_dev *dev,
 				struct rte_eth_dev_info *dev_info);
 static int enetc_link_update(struct rte_eth_dev *dev, int wait_to_complete);
 static int enetc_hardware_init(struct enetc_eth_hw *hw);
+static int enetc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
+		uint16_t nb_rx_desc, unsigned int socket_id,
+		const struct rte_eth_rxconf *rx_conf,
+		struct rte_mempool *mb_pool);
+static void enetc_rx_queue_release(void *rxq);
+static int enetc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
+		uint16_t nb_tx_desc, unsigned int socket_id,
+		const struct rte_eth_txconf *tx_conf);
+static void enetc_tx_queue_release(void *txq);
 
 /*
  * The set of PCI devices this driver supports
@@ -37,6 +46,10 @@ static const struct eth_dev_ops enetc_ops = {
 	.dev_close            = enetc_dev_close,
 	.link_update          = enetc_link_update,
 	.dev_infos_get        = enetc_dev_infos_get,
+	.rx_queue_setup       = enetc_rx_queue_setup,
+	.rx_queue_release     = enetc_rx_queue_release,
+	.tx_queue_setup       = enetc_tx_queue_setup,
+	.tx_queue_release     = enetc_tx_queue_release,
 };
 
 /**
@@ -59,8 +72,8 @@ enetc_dev_init(struct rte_eth_dev *eth_dev)
 
 	PMD_INIT_FUNC_TRACE();
 	eth_dev->dev_ops = &enetc_ops;
-	eth_dev->rx_pkt_burst = NULL;
-	eth_dev->tx_pkt_burst = NULL;
+	eth_dev->rx_pkt_burst = &enetc_recv_pkts;
+	eth_dev->tx_pkt_burst = &enetc_xmit_pkts;
 
 	/* Retrieving and storing the HW base address of device */
 	hw->hw.reg = (void *)pci_dev->mem_resource[0].addr;
@@ -212,11 +225,320 @@ enetc_dev_infos_get(struct rte_eth_dev *dev __rte_unused,
 		    struct rte_eth_dev_info *dev_info)
 {
 	PMD_INIT_FUNC_TRACE();
+	dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
+		.nb_max = MAX_BD_COUNT,
+		.nb_min = MIN_BD_COUNT,
+		.nb_align = BD_ALIGN,
+	};
+	dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
+		.nb_max = MAX_BD_COUNT,
+		.nb_min = MIN_BD_COUNT,
+		.nb_align = BD_ALIGN,
+	};
 	dev_info->max_rx_queues = MAX_RX_RINGS;
 	dev_info->max_tx_queues = MAX_TX_RINGS;
 	dev_info->max_rx_pktlen = 1500;
 }
 
+static int
+enetc_alloc_txbdr(struct enetc_bdr *txr, uint16_t nb_desc)
+{
+	int size;
+
+	size = nb_desc * sizeof(struct enetc_swbd);
+	txr->q_swbd = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
+	if (txr->q_swbd == NULL)
+		return -ENOMEM;
+
+	size = nb_desc * sizeof(struct enetc_tx_bd);
+	txr->bd_base = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
+	if (txr->bd_base == NULL) {
+		rte_free(txr->q_swbd);
+		txr->q_swbd = NULL;
+		return -ENOMEM;
+	}
+
+	txr->bd_count = nb_desc;
+	txr->next_to_clean = 0;
+	txr->next_to_use = 0;
+
+	return 0;
+}
+
+static void
+enetc_free_bdr(struct enetc_bdr *rxr)
+{
+	rte_free(rxr->q_swbd);
+	rte_free(rxr->bd_base);
+	rxr->q_swbd = NULL;
+	rxr->bd_base = NULL;
+}
+
+static void
+enetc_setup_txbdr(struct enetc_hw *hw, struct enetc_bdr *tx_ring)
+{
+	int idx = tx_ring->index;
+	uintptr_t base_addr;
+	uint32_t tbmr;
+
+	base_addr = (uintptr_t)tx_ring->bd_base;
+	enetc_txbdr_wr(hw, idx, ENETC_TBBAR0,
+		       lower_32_bits((uint64_t)base_addr));
+	enetc_txbdr_wr(hw, idx, ENETC_TBBAR1,
+		       upper_32_bits((uint64_t)base_addr));
+	enetc_txbdr_wr(hw, idx, ENETC_TBLENR,
+		       ENETC_RTBLENR_LEN(tx_ring->bd_count));
+
+	tbmr = ENETC_TBMR_EN;
+	/* enable ring */
+	enetc_txbdr_wr(hw, idx, ENETC_TBMR, tbmr);
+	enetc_txbdr_wr(hw, idx, ENETC_TBCIR, 0);
+	enetc_txbdr_wr(hw, idx, ENETC_TBCISR, 0);
+	tx_ring->tcir = (void *)((size_t)hw->reg +
+			ENETC_BDR(TX, idx, ENETC_TBCIR));
+	tx_ring->tcisr = (void *)((size_t)hw->reg +
+			 ENETC_BDR(TX, idx, ENETC_TBCISR));
+}
+
+static int
+enetc_alloc_tx_resources(struct rte_eth_dev *dev,
+			 uint16_t queue_idx,
+			 uint16_t nb_desc)
+{
+	int err;
+	struct enetc_bdr *tx_ring;
+	struct rte_eth_dev_data *data = dev->data;
+	struct enetc_eth_adapter *priv =
+			ENETC_DEV_PRIVATE(data->dev_private);
+
+	tx_ring = rte_zmalloc(NULL, sizeof(struct enetc_bdr), 0);
+	if (tx_ring == NULL) {
+		ENETC_PMD_ERR("Failed to allocate TX ring memory");
+		err = -ENOMEM;
+		return -1;
+	}
+
+	err = enetc_alloc_txbdr(tx_ring, nb_desc);
+	if (err)
+		goto fail;
+
+	tx_ring->index = queue_idx;
+	tx_ring->ndev = dev;
+	enetc_setup_txbdr(&priv->hw.hw, tx_ring);
+	data->tx_queues[queue_idx] = tx_ring;
+
+	return 0;
+fail:
+	rte_free(tx_ring);
+
+	return err;
+}
+
+static int
+enetc_tx_queue_setup(struct rte_eth_dev *dev,
+		     uint16_t queue_idx,
+		     uint16_t nb_desc,
+		     unsigned int socket_id __rte_unused,
+		     const struct rte_eth_txconf *tx_conf __rte_unused)
+{
+	int err = 0;
+
+	PMD_INIT_FUNC_TRACE();
+	if (nb_desc > MAX_BD_COUNT)
+		return -1;
+
+	err = enetc_alloc_tx_resources(dev, queue_idx, nb_desc);
+
+	return err;
+}
+
+static void
+enetc_tx_queue_release(void *txq)
+{
+	if (txq == NULL)
+		return;
+
+	struct enetc_bdr *tx_ring = (struct enetc_bdr *)txq;
+	struct enetc_eth_hw *eth_hw =
+		ENETC_DEV_PRIVATE_TO_HW(tx_ring->ndev->data->dev_private);
+	struct enetc_hw *hw;
+	struct enetc_swbd *tx_swbd;
+	int i;
+	uint32_t val;
+
+	/* Disable the ring */
+	hw = &eth_hw->hw;
+	val = enetc_txbdr_rd(hw, tx_ring->index, ENETC_TBMR);
+	val &= (~ENETC_TBMR_EN);
+	enetc_txbdr_wr(hw, tx_ring->index, ENETC_TBMR, val);
+
+	/* clean the ring*/
+	i = tx_ring->next_to_clean;
+	tx_swbd = &tx_ring->q_swbd[i];
+	while (tx_swbd->buffer_addr != NULL) {
+		rte_pktmbuf_free(tx_swbd->buffer_addr);
+		tx_swbd->buffer_addr = NULL;
+		tx_swbd++;
+		i++;
+		if (unlikely(i == tx_ring->bd_count)) {
+			i = 0;
+			tx_swbd = &tx_ring->q_swbd[i];
+		}
+	}
+
+	enetc_free_bdr(tx_ring);
+	rte_free(tx_ring);
+}
+
+static int
+enetc_alloc_rxbdr(struct enetc_bdr *rxr,
+		  uint16_t nb_rx_desc)
+{
+	int size;
+
+	size = nb_rx_desc * sizeof(struct enetc_swbd);
+	rxr->q_swbd = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
+	if (rxr->q_swbd == NULL)
+		return -ENOMEM;
+
+	size = nb_rx_desc * sizeof(union enetc_rx_bd);
+	rxr->bd_base = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
+	if (rxr->bd_base == NULL) {
+		rte_free(rxr->q_swbd);
+		rxr->q_swbd = NULL;
+		return -ENOMEM;
+	}
+
+	rxr->bd_count = nb_rx_desc;
+	rxr->next_to_clean = 0;
+	rxr->next_to_use = 0;
+	rxr->next_to_alloc = 0;
+
+	return 0;
+}
+
+static void
+enetc_setup_rxbdr(struct enetc_hw *hw, struct enetc_bdr *rx_ring,
+		  struct rte_mempool *mb_pool)
+{
+	int idx = rx_ring->index;
+	uintptr_t base_addr;
+	uint16_t buf_size;
+
+	base_addr = (uintptr_t)rx_ring->bd_base;
+	enetc_rxbdr_wr(hw, idx, ENETC_RBBAR0,
+		       lower_32_bits((uint64_t)base_addr));
+	enetc_rxbdr_wr(hw, idx, ENETC_RBBAR1,
+		       upper_32_bits((uint64_t)base_addr));
+	enetc_rxbdr_wr(hw, idx, ENETC_RBLENR,
+		       ENETC_RTBLENR_LEN(rx_ring->bd_count));
+
+	rx_ring->mb_pool = mb_pool;
+	/* enable ring */
+	enetc_rxbdr_wr(hw, idx, ENETC_RBMR, ENETC_RBMR_EN);
+	enetc_rxbdr_wr(hw, idx, ENETC_RBPIR, 0);
+	rx_ring->rcir = (void *)((size_t)hw->reg +
+			ENETC_BDR(RX, idx, ENETC_RBCIR));
+	enetc_refill_rx_ring(rx_ring, (enetc_bd_unused(rx_ring)));
+	buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rx_ring->mb_pool) -
+		   RTE_PKTMBUF_HEADROOM);
+	enetc_rxbdr_wr(hw, idx, ENETC_RBBSR, buf_size);
+}
+
+static int
+enetc_alloc_rx_resources(struct rte_eth_dev *dev,
+			 uint16_t rx_queue_id,
+			 uint16_t nb_rx_desc,
+			 struct rte_mempool *mb_pool)
+{
+	int err;
+	struct enetc_bdr *rx_ring;
+	struct rte_eth_dev_data *data =  dev->data;
+	struct enetc_eth_adapter *adapter =
+			ENETC_DEV_PRIVATE(data->dev_private);
+
+	rx_ring = rte_zmalloc(NULL, sizeof(struct enetc_bdr), 0);
+	if (rx_ring == NULL) {
+		ENETC_PMD_ERR("Failed to allocate RX ring memory");
+		err = -ENOMEM;
+		return err;
+	}
+
+	err = enetc_alloc_rxbdr(rx_ring, nb_rx_desc);
+	if (err)
+		goto fail;
+
+	rx_ring->index = rx_queue_id;
+	rx_ring->ndev = dev;
+	enetc_setup_rxbdr(&adapter->hw.hw, rx_ring, mb_pool);
+	data->rx_queues[rx_queue_id] = rx_ring;
+
+	return 0;
+fail:
+	rte_free(rx_ring);
+
+	return err;
+}
+
+static int
+enetc_rx_queue_setup(struct rte_eth_dev *dev,
+		     uint16_t rx_queue_id,
+		     uint16_t nb_rx_desc,
+		     unsigned int socket_id __rte_unused,
+		     const struct rte_eth_rxconf *rx_conf __rte_unused,
+		     struct rte_mempool *mb_pool)
+{
+	int err = 0;
+
+	PMD_INIT_FUNC_TRACE();
+	if (nb_rx_desc > MAX_BD_COUNT)
+		return -1;
+
+	err = enetc_alloc_rx_resources(dev, rx_queue_id,
+				       nb_rx_desc,
+				       mb_pool);
+
+	return err;
+}
+
+static void
+enetc_rx_queue_release(void *rxq)
+{
+	if (rxq == NULL)
+		return;
+
+	struct enetc_bdr *rx_ring = (struct enetc_bdr *)rxq;
+	struct enetc_eth_hw *eth_hw =
+		ENETC_DEV_PRIVATE_TO_HW(rx_ring->ndev->data->dev_private);
+	struct enetc_swbd *q_swbd;
+	struct enetc_hw *hw;
+	uint32_t val;
+	int i;
+
+	/* Disable the ring */
+	hw = &eth_hw->hw;
+	val = enetc_rxbdr_rd(hw, rx_ring->index, ENETC_RBMR);
+	val &= (~ENETC_RBMR_EN);
+	enetc_rxbdr_wr(hw, rx_ring->index, ENETC_RBMR, val);
+
+	/* Clean the ring */
+	i = rx_ring->next_to_clean;
+	q_swbd = &rx_ring->q_swbd[i];
+	while (i != rx_ring->next_to_use) {
+		rte_pktmbuf_free(q_swbd->buffer_addr);
+		q_swbd->buffer_addr = NULL;
+		q_swbd++;
+		i++;
+		if (unlikely(i == rx_ring->bd_count)) {
+			i = 0;
+			q_swbd = &rx_ring->q_swbd[i];
+		}
+	}
+
+	enetc_free_bdr(rx_ring);
+	rte_free(rx_ring);
+}
+
 static int
 enetc_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 			   struct rte_pci_device *pci_dev)
diff --git a/drivers/net/enetc/enetc_rxtx.c b/drivers/net/enetc/enetc_rxtx.c
new file mode 100644
index 000000000..631e2430d
--- /dev/null
+++ b/drivers/net/enetc/enetc_rxtx.c
@@ -0,0 +1,239 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2018 NXP
+ */
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include "rte_ethdev.h"
+#include "rte_malloc.h"
+#include "rte_memzone.h"
+
+#include "base/enetc_hw.h"
+#include "enetc.h"
+#include "enetc_logs.h"
+
+#define ENETC_RXBD_BUNDLE 8 /* Number of BDs to update at once */
+
+static int
+enetc_clean_tx_ring(struct enetc_bdr *tx_ring)
+{
+	int tx_frm_cnt = 0;
+	struct enetc_swbd *tx_swbd;
+	int i;
+
+	i = tx_ring->next_to_clean;
+	tx_swbd = &tx_ring->q_swbd[i];
+	while ((int)(enetc_rd_reg(tx_ring->tcisr) &
+	       ENETC_TBCISR_IDX_MASK) != i) {
+		rte_pktmbuf_free(tx_swbd->buffer_addr);
+		tx_swbd->buffer_addr = NULL;
+		tx_swbd++;
+		i++;
+		if (unlikely(i == tx_ring->bd_count)) {
+			i = 0;
+			tx_swbd = &tx_ring->q_swbd[0];
+		}
+
+		tx_frm_cnt++;
+	}
+
+	tx_ring->next_to_clean = i;
+	return tx_frm_cnt++;
+}
+
+uint16_t
+enetc_xmit_pkts(void *tx_queue,
+		struct rte_mbuf **tx_pkts,
+		uint16_t nb_pkts)
+{
+	struct enetc_swbd *tx_swbd;
+	int i, start;
+	struct enetc_tx_bd *txbd;
+	struct enetc_bdr *tx_ring = (struct enetc_bdr *)tx_queue;
+
+	i = tx_ring->next_to_use;
+	start = 0;
+	while (nb_pkts--) {
+		enetc_clean_tx_ring(tx_ring);
+		tx_ring->q_swbd[i].buffer_addr = tx_pkts[start];
+		txbd = ENETC_TXBD(*tx_ring, i);
+		tx_swbd = &tx_ring->q_swbd[i];
+		txbd->frm_len = tx_pkts[start]->pkt_len;
+		txbd->buf_len = txbd->frm_len;
+		txbd->flags = rte_cpu_to_le_16(ENETC_TXBD_FLAGS_F);
+		txbd->addr = (uint64_t)(uintptr_t)
+		rte_cpu_to_le_64((size_t)tx_swbd->buffer_addr->buf_addr +
+				 tx_swbd->buffer_addr->data_off);
+		i++;
+		start++;
+		if (unlikely(i == tx_ring->bd_count))
+			i = 0;
+	}
+
+	tx_ring->next_to_use = i;
+	enetc_wr_reg(tx_ring->tcir, i);
+	return start;
+}
+
+int
+enetc_refill_rx_ring(struct enetc_bdr *rx_ring, const int buff_cnt)
+{
+	struct enetc_swbd *rx_swbd;
+	union enetc_rx_bd *rxbd;
+	int i, j;
+
+	i = rx_ring->next_to_use;
+	rx_swbd = &rx_ring->q_swbd[i];
+	rxbd = ENETC_RXBD(*rx_ring, i);
+	for (j = 0; j < buff_cnt; j++) {
+		rx_swbd->buffer_addr =
+			rte_cpu_to_le_64(rte_mbuf_raw_alloc(rx_ring->mb_pool));
+		rxbd->w.addr = (uint64_t)(uintptr_t)
+			       rx_swbd->buffer_addr->buf_addr +
+			       rx_swbd->buffer_addr->data_off;
+		/* clear 'R" as well */
+		rxbd->r.lstatus = 0;
+		rx_swbd++;
+		rxbd++;
+		i++;
+		if (unlikely(i == rx_ring->bd_count)) {
+			i = 0;
+			rxbd = ENETC_RXBD(*rx_ring, 0);
+			rx_swbd = &rx_ring->q_swbd[i];
+		}
+	}
+
+	if (likely(j)) {
+		rx_ring->next_to_alloc = i;
+		rx_ring->next_to_use = i;
+		enetc_wr_reg(rx_ring->rcir, i);
+	}
+
+	return j;
+}
+
+
+static inline void __attribute__((hot))
+enetc_dev_rx_parse(struct rte_mbuf *m, uint16_t parse_results)
+{
+	ENETC_PMD_DP_DEBUG("parse summary = 0x%x   ", parse_results);
+
+	m->packet_type = RTE_PTYPE_UNKNOWN;
+	switch (parse_results) {
+	case ENETC_PKT_TYPE_ETHER:
+		m->packet_type = RTE_PTYPE_L2_ETHER;
+		break;
+	case ENETC_PKT_TYPE_IPV4:
+		m->packet_type = RTE_PTYPE_L2_ETHER |
+				 RTE_PTYPE_L3_IPV4;
+		break;
+	case ENETC_PKT_TYPE_IPV6:
+		m->packet_type = RTE_PTYPE_L2_ETHER |
+				 RTE_PTYPE_L3_IPV6;
+		break;
+	case ENETC_PKT_TYPE_IPV4_TCP:
+		m->packet_type = RTE_PTYPE_L2_ETHER |
+				 RTE_PTYPE_L3_IPV4 |
+				 RTE_PTYPE_L4_TCP;
+		break;
+	case ENETC_PKT_TYPE_IPV6_TCP:
+		m->packet_type = RTE_PTYPE_L2_ETHER |
+				 RTE_PTYPE_L3_IPV6 |
+				 RTE_PTYPE_L4_TCP;
+		break;
+	case ENETC_PKT_TYPE_IPV4_UDP:
+		m->packet_type = RTE_PTYPE_L2_ETHER |
+				 RTE_PTYPE_L3_IPV4 |
+				 RTE_PTYPE_L4_UDP;
+		break;
+	case ENETC_PKT_TYPE_IPV6_UDP:
+		m->packet_type = RTE_PTYPE_L2_ETHER |
+				 RTE_PTYPE_L3_IPV6 |
+				 RTE_PTYPE_L4_UDP;
+		break;
+	case ENETC_PKT_TYPE_IPV4_SCTP:
+		m->packet_type = RTE_PTYPE_L2_ETHER |
+				 RTE_PTYPE_L3_IPV4 |
+				 RTE_PTYPE_L4_SCTP;
+		break;
+	case ENETC_PKT_TYPE_IPV6_SCTP:
+		m->packet_type = RTE_PTYPE_L2_ETHER |
+				 RTE_PTYPE_L3_IPV6 |
+				 RTE_PTYPE_L4_SCTP;
+		break;
+	case ENETC_PKT_TYPE_IPV4_ICMP:
+		m->packet_type = RTE_PTYPE_L2_ETHER |
+				 RTE_PTYPE_L3_IPV4 |
+				 RTE_PTYPE_L4_ICMP;
+		break;
+	case ENETC_PKT_TYPE_IPV6_ICMP:
+		m->packet_type = RTE_PTYPE_L2_ETHER |
+				 RTE_PTYPE_L3_IPV6 |
+				 RTE_PTYPE_L4_ICMP;
+		break;
+	/* More switch cases can be added */
+	default:
+		m->packet_type = RTE_PTYPE_UNKNOWN;
+	}
+}
+
+static int
+enetc_clean_rx_ring(struct enetc_bdr *rx_ring,
+		    struct rte_mbuf **rx_pkts,
+		    int work_limit)
+{
+	int rx_frm_cnt = 0;
+	int cleaned_cnt, i;
+	struct enetc_swbd *rx_swbd;
+
+	cleaned_cnt = enetc_bd_unused(rx_ring);
+	/* next descriptor to process */
+	i = rx_ring->next_to_clean;
+	rx_swbd = &rx_ring->q_swbd[i];
+	while (likely(rx_frm_cnt < work_limit)) {
+		union enetc_rx_bd *rxbd;
+		uint32_t bd_status;
+
+		if (cleaned_cnt >= ENETC_RXBD_BUNDLE) {
+			int count = enetc_refill_rx_ring(rx_ring, cleaned_cnt);
+
+			cleaned_cnt -= count;
+		}
+
+		rxbd = ENETC_RXBD(*rx_ring, i);
+		bd_status = rte_le_to_cpu_32(rxbd->r.lstatus);
+		if (!bd_status)
+			break;
+
+		rx_swbd->buffer_addr->pkt_len = rxbd->r.buf_len;
+		rx_swbd->buffer_addr->data_len = rxbd->r.buf_len;
+		rx_swbd->buffer_addr->hash.rss = rxbd->r.rss_hash;
+		rx_swbd->buffer_addr->ol_flags = 0;
+		enetc_dev_rx_parse(rx_swbd->buffer_addr,
+				   rxbd->r.parse_summary);
+		rx_pkts[rx_frm_cnt] = rx_swbd->buffer_addr;
+		cleaned_cnt++;
+		rx_swbd++;
+		i++;
+		if (unlikely(i == rx_ring->bd_count)) {
+			i = 0;
+			rx_swbd = &rx_ring->q_swbd[i];
+		}
+
+		rx_ring->next_to_clean = i;
+		rx_frm_cnt++;
+	}
+
+	return rx_frm_cnt;
+}
+
+uint16_t
+enetc_recv_pkts(void *rxq, struct rte_mbuf **rx_pkts,
+		uint16_t nb_pkts)
+{
+	struct enetc_bdr *rx_ring = (struct enetc_bdr *)rxq;
+
+	return enetc_clean_rx_ring(rx_ring, rx_pkts, nb_pkts);
+}
diff --git a/drivers/net/enetc/meson.build b/drivers/net/enetc/meson.build
index 506b174ed..733156bbf 100644
--- a/drivers/net/enetc/meson.build
+++ b/drivers/net/enetc/meson.build
@@ -5,6 +5,7 @@ if host_machine.system() != 'linux'
 	build = false
 endif
 
-sources = files('enetc_ethdev.c')
+sources = files('enetc_ethdev.c',
+		'enetc_rxtx.c')
 
 includes += include_directories('base')
-- 
2.17.1