New upstream version 18.08upstream/18.08

Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 2761 insertions, 0 deletions

diff --git a/drivers/net/mvpp2/mrvl_ethdev.c b/drivers/net/mvpp2/mrvl_ethdev.c
new file mode 100644
index 00000000..a2d0576e
--- /dev/null
+++ b/drivers/net/mvpp2/mrvl_ethdev.c
@@ -0,0 +1,2761 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2017 Marvell International Ltd.
+ * Copyright(c) 2017 Semihalf.
+ * All rights reserved.
+ */
+
+#include <rte_ethdev_driver.h>
+#include <rte_kvargs.h>
+#include <rte_log.h>
+#include <rte_malloc.h>
+#include <rte_bus_vdev.h>
+
+/* Unluckily, container_of is defined by both DPDK and MUSDK,
+ * we'll declare only one version.
+ *
+ * Note that it is not used in this PMD anyway.
+ */
+#ifdef container_of
+#undef container_of
+#endif
+
+#include <fcntl.h>
+#include <linux/ethtool.h>
+#include <linux/sockios.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "mrvl_ethdev.h"
+#include "mrvl_qos.h"
+
+/* bitmask with reserved hifs */
+#define MRVL_MUSDK_HIFS_RESERVED 0x0F
+/* bitmask with reserved bpools */
+#define MRVL_MUSDK_BPOOLS_RESERVED 0x07
+/* bitmask with reserved kernel RSS tables */
+#define MRVL_MUSDK_RSS_RESERVED 0x01
+/* maximum number of available hifs */
+#define MRVL_MUSDK_HIFS_MAX 9
+
+/* prefetch shift */
+#define MRVL_MUSDK_PREFETCH_SHIFT 2
+
+/* TCAM has 25 entries reserved for uc/mc filter entries */
+#define MRVL_MAC_ADDRS_MAX 25
+#define MRVL_MATCH_LEN 16
+#define MRVL_PKT_EFFEC_OFFS (MRVL_PKT_OFFS + MV_MH_SIZE)
+/* Maximum allowable packet size */
+#define MRVL_PKT_SIZE_MAX (10240 - MV_MH_SIZE)
+
+#define MRVL_IFACE_NAME_ARG "iface"
+#define MRVL_CFG_ARG "cfg"
+
+#define MRVL_BURST_SIZE 64
+
+#define MRVL_ARP_LENGTH 28
+
+#define MRVL_COOKIE_ADDR_INVALID ~0ULL
+
+#define MRVL_COOKIE_HIGH_ADDR_SHIFT	(sizeof(pp2_cookie_t) * 8)
+#define MRVL_COOKIE_HIGH_ADDR_MASK	(~0ULL << MRVL_COOKIE_HIGH_ADDR_SHIFT)
+
+/* Memory size (in bytes) for MUSDK dma buffers */
+#define MRVL_MUSDK_DMA_MEMSIZE 41943040
+
+/** Port Rx offload capabilities */
+#define MRVL_RX_OFFLOADS (DEV_RX_OFFLOAD_VLAN_FILTER | \
+			  DEV_RX_OFFLOAD_JUMBO_FRAME | \
+			  DEV_RX_OFFLOAD_CRC_STRIP | \
+			  DEV_RX_OFFLOAD_CHECKSUM)
+
+/** Port Tx offloads capabilities */
+#define MRVL_TX_OFFLOADS (DEV_TX_OFFLOAD_IPV4_CKSUM | \
+			  DEV_TX_OFFLOAD_UDP_CKSUM | \
+			  DEV_TX_OFFLOAD_TCP_CKSUM)
+
+static const char * const valid_args[] = {
+	MRVL_IFACE_NAME_ARG,
+	MRVL_CFG_ARG,
+	NULL
+};
+
+static int used_hifs = MRVL_MUSDK_HIFS_RESERVED;
+static struct pp2_hif *hifs[RTE_MAX_LCORE];
+static int used_bpools[PP2_NUM_PKT_PROC] = {
+	MRVL_MUSDK_BPOOLS_RESERVED,
+	MRVL_MUSDK_BPOOLS_RESERVED
+};
+
+struct pp2_bpool *mrvl_port_to_bpool_lookup[RTE_MAX_ETHPORTS];
+int mrvl_port_bpool_size[PP2_NUM_PKT_PROC][PP2_BPOOL_NUM_POOLS][RTE_MAX_LCORE];
+uint64_t cookie_addr_high = MRVL_COOKIE_ADDR_INVALID;
+
+int mrvl_logtype;
+
+struct mrvl_ifnames {
+	const char *names[PP2_NUM_ETH_PPIO * PP2_NUM_PKT_PROC];
+	int idx;
+};
+
+/*
+ * To use buffer harvesting based on loopback port shadow queue structure
+ * was introduced for buffers information bookkeeping.
+ *
+ * Before sending the packet, related buffer information (pp2_buff_inf) is
+ * stored in shadow queue. After packet is transmitted no longer used
+ * packet buffer is released back to it's original hardware pool,
+ * on condition it originated from interface.
+ * In case it  was generated by application itself i.e: mbuf->port field is
+ * 0xff then its released to software mempool.
+ */
+struct mrvl_shadow_txq {
+	int head;           /* write index - used when sending buffers */
+	int tail;           /* read index - used when releasing buffers */
+	u16 size;           /* queue occupied size */
+	u16 num_to_release; /* number of buffers sent, that can be released */
+	struct buff_release_entry ent[MRVL_PP2_TX_SHADOWQ_SIZE]; /* q entries */
+};
+
+struct mrvl_rxq {
+	struct mrvl_priv *priv;
+	struct rte_mempool *mp;
+	int queue_id;
+	int port_id;
+	int cksum_enabled;
+	uint64_t bytes_recv;
+	uint64_t drop_mac;
+};
+
+struct mrvl_txq {
+	struct mrvl_priv *priv;
+	int queue_id;
+	int port_id;
+	uint64_t bytes_sent;
+	struct mrvl_shadow_txq shadow_txqs[RTE_MAX_LCORE];
+	int tx_deferred_start;
+};
+
+static int mrvl_lcore_first;
+static int mrvl_lcore_last;
+static int mrvl_dev_num;
+
+static int mrvl_fill_bpool(struct mrvl_rxq *rxq, int num);
+static inline void mrvl_free_sent_buffers(struct pp2_ppio *ppio,
+			struct pp2_hif *hif, unsigned int core_id,
+			struct mrvl_shadow_txq *sq, int qid, int force);
+
+#define MRVL_XSTATS_TBL_ENTRY(name) { \
+	#name, offsetof(struct pp2_ppio_statistics, name),	\
+	sizeof(((struct pp2_ppio_statistics *)0)->name)		\
+}
+
+/* Table with xstats data */
+static struct {
+	const char *name;
+	unsigned int offset;
+	unsigned int size;
+} mrvl_xstats_tbl[] = {
+	MRVL_XSTATS_TBL_ENTRY(rx_bytes),
+	MRVL_XSTATS_TBL_ENTRY(rx_packets),
+	MRVL_XSTATS_TBL_ENTRY(rx_unicast_packets),
+	MRVL_XSTATS_TBL_ENTRY(rx_errors),
+	MRVL_XSTATS_TBL_ENTRY(rx_fullq_dropped),
+	MRVL_XSTATS_TBL_ENTRY(rx_bm_dropped),
+	MRVL_XSTATS_TBL_ENTRY(rx_early_dropped),
+	MRVL_XSTATS_TBL_ENTRY(rx_fifo_dropped),
+	MRVL_XSTATS_TBL_ENTRY(rx_cls_dropped),
+	MRVL_XSTATS_TBL_ENTRY(tx_bytes),
+	MRVL_XSTATS_TBL_ENTRY(tx_packets),
+	MRVL_XSTATS_TBL_ENTRY(tx_unicast_packets),
+	MRVL_XSTATS_TBL_ENTRY(tx_errors)
+};
+
+static inline int
+mrvl_get_bpool_size(int pp2_id, int pool_id)
+{
+	int i;
+	int size = 0;
+
+	for (i = mrvl_lcore_first; i <= mrvl_lcore_last; i++)
+		size += mrvl_port_bpool_size[pp2_id][pool_id][i];
+
+	return size;
+}
+
+static inline int
+mrvl_reserve_bit(int *bitmap, int max)
+{
+	int n = sizeof(*bitmap) * 8 - __builtin_clz(*bitmap);
+
+	if (n >= max)
+		return -1;
+
+	*bitmap |= 1 << n;
+
+	return n;
+}
+
+static int
+mrvl_init_hif(int core_id)
+{
+	struct pp2_hif_params params;
+	char match[MRVL_MATCH_LEN];
+	int ret;
+
+	ret = mrvl_reserve_bit(&used_hifs, MRVL_MUSDK_HIFS_MAX);
+	if (ret < 0) {
+		MRVL_LOG(ERR, "Failed to allocate hif %d", core_id);
+		return ret;
+	}
+
+	snprintf(match, sizeof(match), "hif-%d", ret);
+	memset(&params, 0, sizeof(params));
+	params.match = match;
+	params.out_size = MRVL_PP2_AGGR_TXQD_MAX;
+	ret = pp2_hif_init(&params, &hifs[core_id]);
+	if (ret) {
+		MRVL_LOG(ERR, "Failed to initialize hif %d", core_id);
+		return ret;
+	}
+
+	return 0;
+}
+
+static inline struct pp2_hif*
+mrvl_get_hif(struct mrvl_priv *priv, int core_id)
+{
+	int ret;
+
+	if (likely(hifs[core_id] != NULL))
+		return hifs[core_id];
+
+	rte_spinlock_lock(&priv->lock);
+
+	ret = mrvl_init_hif(core_id);
+	if (ret < 0) {
+		MRVL_LOG(ERR, "Failed to allocate hif %d", core_id);
+		goto out;
+	}
+
+	if (core_id < mrvl_lcore_first)
+		mrvl_lcore_first = core_id;
+
+	if (core_id > mrvl_lcore_last)
+		mrvl_lcore_last = core_id;
+out:
+	rte_spinlock_unlock(&priv->lock);
+
+	return hifs[core_id];
+}
+
+/**
+ * Configure rss based on dpdk rss configuration.
+ *
+ * @param priv
+ *   Pointer to private structure.
+ * @param rss_conf
+ *   Pointer to RSS configuration.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_configure_rss(struct mrvl_priv *priv, struct rte_eth_rss_conf *rss_conf)
+{
+	if (rss_conf->rss_key)
+		MRVL_LOG(WARNING, "Changing hash key is not supported");
+
+	if (rss_conf->rss_hf == 0) {
+		priv->ppio_params.inqs_params.hash_type = PP2_PPIO_HASH_T_NONE;
+	} else if (rss_conf->rss_hf & ETH_RSS_IPV4) {
+		priv->ppio_params.inqs_params.hash_type =
+			PP2_PPIO_HASH_T_2_TUPLE;
+	} else if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP) {
+		priv->ppio_params.inqs_params.hash_type =
+			PP2_PPIO_HASH_T_5_TUPLE;
+		priv->rss_hf_tcp = 1;
+	} else if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV4_UDP) {
+		priv->ppio_params.inqs_params.hash_type =
+			PP2_PPIO_HASH_T_5_TUPLE;
+		priv->rss_hf_tcp = 0;
+	} else {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/**
+ * Ethernet device configuration.
+ *
+ * Prepare the driver for a given number of TX and RX queues and
+ * configure RSS.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_dev_configure(struct rte_eth_dev *dev)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	int ret;
+
+	if (dev->data->dev_conf.rxmode.mq_mode != ETH_MQ_RX_NONE &&
+	    dev->data->dev_conf.rxmode.mq_mode != ETH_MQ_RX_RSS) {
+		MRVL_LOG(INFO, "Unsupported rx multi queue mode %d",
+			dev->data->dev_conf.rxmode.mq_mode);
+		return -EINVAL;
+	}
+
+	/* KEEP_CRC offload flag is not supported by PMD
+	 * can remove the below block when DEV_RX_OFFLOAD_CRC_STRIP removed
+	 */
+	if (rte_eth_dev_must_keep_crc(dev->data->dev_conf.rxmode.offloads)) {
+		MRVL_LOG(INFO, "L2 CRC stripping is always enabled in hw");
+		dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CRC_STRIP;
+	}
+
+	if (dev->data->dev_conf.rxmode.split_hdr_size) {
+		MRVL_LOG(INFO, "Split headers not supported");
+		return -EINVAL;
+	}
+
+	if (dev->data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_JUMBO_FRAME)
+		dev->data->mtu = dev->data->dev_conf.rxmode.max_rx_pkt_len -
+				 ETHER_HDR_LEN - ETHER_CRC_LEN;
+
+	ret = mrvl_configure_rxqs(priv, dev->data->port_id,
+				  dev->data->nb_rx_queues);
+	if (ret < 0)
+		return ret;
+
+	ret = mrvl_configure_txqs(priv, dev->data->port_id,
+				  dev->data->nb_tx_queues);
+	if (ret < 0)
+		return ret;
+
+	priv->ppio_params.outqs_params.num_outqs = dev->data->nb_tx_queues;
+	priv->ppio_params.maintain_stats = 1;
+	priv->nb_rx_queues = dev->data->nb_rx_queues;
+
+	if (dev->data->nb_rx_queues == 1 &&
+	    dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
+		MRVL_LOG(WARNING, "Disabling hash for 1 rx queue");
+		priv->ppio_params.inqs_params.hash_type = PP2_PPIO_HASH_T_NONE;
+
+		return 0;
+	}
+
+	return mrvl_configure_rss(priv,
+				  &dev->data->dev_conf.rx_adv_conf.rss_conf);
+}
+
+/**
+ * DPDK callback to change the MTU.
+ *
+ * Setting the MTU affects hardware MRU (packets larger than the MRU
+ * will be dropped).
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param mtu
+ *   New MTU.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	/* extra MV_MH_SIZE bytes are required for Marvell tag */
+	uint16_t mru = mtu + MV_MH_SIZE + ETHER_HDR_LEN + ETHER_CRC_LEN;
+	int ret;
+
+	if (mtu < ETHER_MIN_MTU || mru > MRVL_PKT_SIZE_MAX)
+		return -EINVAL;
+
+	if (!priv->ppio)
+		return 0;
+
+	ret = pp2_ppio_set_mru(priv->ppio, mru);
+	if (ret)
+		return ret;
+
+	return pp2_ppio_set_mtu(priv->ppio, mtu);
+}
+
+/**
+ * DPDK callback to bring the link up.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_dev_set_link_up(struct rte_eth_dev *dev)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	int ret;
+
+	if (!priv->ppio)
+		return -EPERM;
+
+	ret = pp2_ppio_enable(priv->ppio);
+	if (ret)
+		return ret;
+
+	/*
+	 * mtu/mru can be updated if pp2_ppio_enable() was called at least once
+	 * as pp2_ppio_enable() changes port->t_mode from default 0 to
+	 * PP2_TRAFFIC_INGRESS_EGRESS.
+	 *
+	 * Set mtu to default DPDK value here.
+	 */
+	ret = mrvl_mtu_set(dev, dev->data->mtu);
+	if (ret)
+		pp2_ppio_disable(priv->ppio);
+
+	return ret;
+}
+
+/**
+ * DPDK callback to bring the link down.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_dev_set_link_down(struct rte_eth_dev *dev)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+
+	if (!priv->ppio)
+		return -EPERM;
+
+	return pp2_ppio_disable(priv->ppio);
+}
+
+/**
+ * DPDK callback to start tx queue.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param queue_id
+ *   Transmit queue index.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_tx_queue_start(struct rte_eth_dev *dev, uint16_t queue_id)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	int ret;
+
+	if (!priv)
+		return -EPERM;
+
+	/* passing 1 enables given tx queue */
+	ret = pp2_ppio_set_outq_state(priv->ppio, queue_id, 1);
+	if (ret) {
+		MRVL_LOG(ERR, "Failed to start txq %d", queue_id);
+		return ret;
+	}
+
+	dev->data->tx_queue_state[queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
+
+	return 0;
+}
+
+/**
+ * DPDK callback to stop tx queue.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param queue_id
+ *   Transmit queue index.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_tx_queue_stop(struct rte_eth_dev *dev, uint16_t queue_id)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	int ret;
+
+	if (!priv->ppio)
+		return -EPERM;
+
+	/* passing 0 disables given tx queue */
+	ret = pp2_ppio_set_outq_state(priv->ppio, queue_id, 0);
+	if (ret) {
+		MRVL_LOG(ERR, "Failed to stop txq %d", queue_id);
+		return ret;
+	}
+
+	dev->data->tx_queue_state[queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
+
+	return 0;
+}
+
+/**
+ * DPDK callback to start the device.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ *
+ * @return
+ *   0 on success, negative errno value on failure.
+ */
+static int
+mrvl_dev_start(struct rte_eth_dev *dev)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	char match[MRVL_MATCH_LEN];
+	int ret = 0, i, def_init_size;
+
+	snprintf(match, sizeof(match), "ppio-%d:%d",
+		 priv->pp_id, priv->ppio_id);
+	priv->ppio_params.match = match;
+
+	/*
+	 * Calculate the minimum bpool size for refill feature as follows:
+	 * 2 default burst sizes multiply by number of rx queues.
+	 * If the bpool size will be below this value, new buffers will
+	 * be added to the pool.
+	 */
+	priv->bpool_min_size = priv->nb_rx_queues * MRVL_BURST_SIZE * 2;
+
+	/* In case initial bpool size configured in queues setup is
+	 * smaller than minimum size add more buffers
+	 */
+	def_init_size = priv->bpool_min_size + MRVL_BURST_SIZE * 2;
+	if (priv->bpool_init_size < def_init_size) {
+		int buffs_to_add = def_init_size - priv->bpool_init_size;
+
+		priv->bpool_init_size += buffs_to_add;
+		ret = mrvl_fill_bpool(dev->data->rx_queues[0], buffs_to_add);
+		if (ret)
+			MRVL_LOG(ERR, "Failed to add buffers to bpool");
+	}
+
+	/*
+	 * Calculate the maximum bpool size for refill feature as follows:
+	 * maximum number of descriptors in rx queue multiply by number
+	 * of rx queues plus minimum bpool size.
+	 * In case the bpool size will exceed this value, superfluous buffers
+	 * will be removed
+	 */
+	priv->bpool_max_size = (priv->nb_rx_queues * MRVL_PP2_RXD_MAX) +
+				priv->bpool_min_size;
+
+	ret = pp2_ppio_init(&priv->ppio_params, &priv->ppio);
+	if (ret) {
+		MRVL_LOG(ERR, "Failed to init ppio");
+		return ret;
+	}
+
+	/*
+	 * In case there are some some stale uc/mc mac addresses flush them
+	 * here. It cannot be done during mrvl_dev_close() as port information
+	 * is already gone at that point (due to pp2_ppio_deinit() in
+	 * mrvl_dev_stop()).
+	 */
+	if (!priv->uc_mc_flushed) {
+		ret = pp2_ppio_flush_mac_addrs(priv->ppio, 1, 1);
+		if (ret) {
+			MRVL_LOG(ERR,
+				"Failed to flush uc/mc filter list");
+			goto out;
+		}
+		priv->uc_mc_flushed = 1;
+	}
+
+	if (!priv->vlan_flushed) {
+		ret = pp2_ppio_flush_vlan(priv->ppio);
+		if (ret) {
+			MRVL_LOG(ERR, "Failed to flush vlan list");
+			/*
+			 * TODO
+			 * once pp2_ppio_flush_vlan() is supported jump to out
+			 * goto out;
+			 */
+		}
+		priv->vlan_flushed = 1;
+	}
+
+	/* For default QoS config, don't start classifier. */
+	if (mrvl_qos_cfg) {
+		ret = mrvl_start_qos_mapping(priv);
+		if (ret) {
+			MRVL_LOG(ERR, "Failed to setup QoS mapping");
+			goto out;
+		}
+	}
+
+	ret = mrvl_dev_set_link_up(dev);
+	if (ret) {
+		MRVL_LOG(ERR, "Failed to set link up");
+		goto out;
+	}
+
+	/* start tx queues */
+	for (i = 0; i < dev->data->nb_tx_queues; i++) {
+		struct mrvl_txq *txq = dev->data->tx_queues[i];
+
+		dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STARTED;
+
+		if (!txq->tx_deferred_start)
+			continue;
+
+		/*
+		 * All txqs are started by default. Stop them
+		 * so that tx_deferred_start works as expected.
+		 */
+		ret = mrvl_tx_queue_stop(dev, i);
+		if (ret)
+			goto out;
+	}
+
+	return 0;
+out:
+	MRVL_LOG(ERR, "Failed to start device");
+	pp2_ppio_deinit(priv->ppio);
+	return ret;
+}
+
+/**
+ * Flush receive queues.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ */
+static void
+mrvl_flush_rx_queues(struct rte_eth_dev *dev)
+{
+	int i;
+
+	MRVL_LOG(INFO, "Flushing rx queues");
+	for (i = 0; i < dev->data->nb_rx_queues; i++) {
+		int ret, num;
+
+		do {
+			struct mrvl_rxq *q = dev->data->rx_queues[i];
+			struct pp2_ppio_desc descs[MRVL_PP2_RXD_MAX];
+
+			num = MRVL_PP2_RXD_MAX;
+			ret = pp2_ppio_recv(q->priv->ppio,
+					    q->priv->rxq_map[q->queue_id].tc,
+					    q->priv->rxq_map[q->queue_id].inq,
+					    descs, (uint16_t *)&num);
+		} while (ret == 0 && num);
+	}
+}
+
+/**
+ * Flush transmit shadow queues.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ */
+static void
+mrvl_flush_tx_shadow_queues(struct rte_eth_dev *dev)
+{
+	int i, j;
+	struct mrvl_txq *txq;
+
+	MRVL_LOG(INFO, "Flushing tx shadow queues");
+	for (i = 0; i < dev->data->nb_tx_queues; i++) {
+		txq = (struct mrvl_txq *)dev->data->tx_queues[i];
+
+		for (j = 0; j < RTE_MAX_LCORE; j++) {
+			struct mrvl_shadow_txq *sq;
+
+			if (!hifs[j])
+				continue;
+
+			sq = &txq->shadow_txqs[j];
+			mrvl_free_sent_buffers(txq->priv->ppio,
+				hifs[j], j, sq, txq->queue_id, 1);
+			while (sq->tail != sq->head) {
+				uint64_t addr = cookie_addr_high |
+					sq->ent[sq->tail].buff.cookie;
+				rte_pktmbuf_free(
+					(struct rte_mbuf *)addr);
+				sq->tail = (sq->tail + 1) &
+					    MRVL_PP2_TX_SHADOWQ_MASK;
+			}
+			memset(sq, 0, sizeof(*sq));
+		}
+	}
+}
+
+/**
+ * Flush hardware bpool (buffer-pool).
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ */
+static void
+mrvl_flush_bpool(struct rte_eth_dev *dev)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	struct pp2_hif *hif;
+	uint32_t num;
+	int ret;
+	unsigned int core_id = rte_lcore_id();
+
+	if (core_id == LCORE_ID_ANY)
+		core_id = 0;
+
+	hif = mrvl_get_hif(priv, core_id);
+
+	ret = pp2_bpool_get_num_buffs(priv->bpool, &num);
+	if (ret) {
+		MRVL_LOG(ERR, "Failed to get bpool buffers number");
+		return;
+	}
+
+	while (num--) {
+		struct pp2_buff_inf inf;
+		uint64_t addr;
+
+		ret = pp2_bpool_get_buff(hif, priv->bpool, &inf);
+		if (ret)
+			break;
+
+		addr = cookie_addr_high | inf.cookie;
+		rte_pktmbuf_free((struct rte_mbuf *)addr);
+	}
+}
+
+/**
+ * DPDK callback to stop the device.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ */
+static void
+mrvl_dev_stop(struct rte_eth_dev *dev)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+
+	mrvl_dev_set_link_down(dev);
+	mrvl_flush_rx_queues(dev);
+	mrvl_flush_tx_shadow_queues(dev);
+	if (priv->cls_tbl) {
+		pp2_cls_tbl_deinit(priv->cls_tbl);
+		priv->cls_tbl = NULL;
+	}
+	if (priv->qos_tbl) {
+		pp2_cls_qos_tbl_deinit(priv->qos_tbl);
+		priv->qos_tbl = NULL;
+	}
+	if (priv->ppio)
+		pp2_ppio_deinit(priv->ppio);
+	priv->ppio = NULL;
+
+	/* policer must be released after ppio deinitialization */
+	if (priv->policer) {
+		pp2_cls_plcr_deinit(priv->policer);
+		priv->policer = NULL;
+	}
+}
+
+/**
+ * DPDK callback to close the device.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ */
+static void
+mrvl_dev_close(struct rte_eth_dev *dev)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	size_t i;
+
+	for (i = 0; i < priv->ppio_params.inqs_params.num_tcs; ++i) {
+		struct pp2_ppio_tc_params *tc_params =
+			&priv->ppio_params.inqs_params.tcs_params[i];
+
+		if (tc_params->inqs_params) {
+			rte_free(tc_params->inqs_params);
+			tc_params->inqs_params = NULL;
+		}
+	}
+
+	mrvl_flush_bpool(dev);
+}
+
+/**
+ * DPDK callback to retrieve physical link information.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param wait_to_complete
+ *   Wait for request completion (ignored).
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_link_update(struct rte_eth_dev *dev, int wait_to_complete __rte_unused)
+{
+	/*
+	 * TODO
+	 * once MUSDK provides necessary API use it here
+	 */
+	struct mrvl_priv *priv = dev->data->dev_private;
+	struct ethtool_cmd edata;
+	struct ifreq req;
+	int ret, fd, link_up;
+
+	if (!priv->ppio)
+		return -EPERM;
+
+	edata.cmd = ETHTOOL_GSET;
+
+	strcpy(req.ifr_name, dev->data->name);
+	req.ifr_data = (void *)&edata;
+
+	fd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd == -1)
+		return -EFAULT;
+
+	ret = ioctl(fd, SIOCETHTOOL, &req);
+	if (ret == -1) {
+		close(fd);
+		return -EFAULT;
+	}
+
+	close(fd);
+
+	switch (ethtool_cmd_speed(&edata)) {
+	case SPEED_10:
+		dev->data->dev_link.link_speed = ETH_SPEED_NUM_10M;
+		break;
+	case SPEED_100:
+		dev->data->dev_link.link_speed = ETH_SPEED_NUM_100M;
+		break;
+	case SPEED_1000:
+		dev->data->dev_link.link_speed = ETH_SPEED_NUM_1G;
+		break;
+	case SPEED_10000:
+		dev->data->dev_link.link_speed = ETH_SPEED_NUM_10G;
+		break;
+	default:
+		dev->data->dev_link.link_speed = ETH_SPEED_NUM_NONE;
+	}
+
+	dev->data->dev_link.link_duplex = edata.duplex ? ETH_LINK_FULL_DUPLEX :
+							 ETH_LINK_HALF_DUPLEX;
+	dev->data->dev_link.link_autoneg = edata.autoneg ? ETH_LINK_AUTONEG :
+							   ETH_LINK_FIXED;
+	pp2_ppio_get_link_state(priv->ppio, &link_up);
+	dev->data->dev_link.link_status = link_up ? ETH_LINK_UP : ETH_LINK_DOWN;
+
+	return 0;
+}
+
+/**
+ * DPDK callback to enable promiscuous mode.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ */
+static void
+mrvl_promiscuous_enable(struct rte_eth_dev *dev)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	int ret;
+
+	if (!priv->ppio)
+		return;
+
+	if (priv->isolated)
+		return;
+
+	ret = pp2_ppio_set_promisc(priv->ppio, 1);
+	if (ret)
+		MRVL_LOG(ERR, "Failed to enable promiscuous mode");
+}
+
+/**
+ * DPDK callback to enable allmulti mode.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ */
+static void
+mrvl_allmulticast_enable(struct rte_eth_dev *dev)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	int ret;
+
+	if (!priv->ppio)
+		return;
+
+	if (priv->isolated)
+		return;
+
+	ret = pp2_ppio_set_mc_promisc(priv->ppio, 1);
+	if (ret)
+		MRVL_LOG(ERR, "Failed enable all-multicast mode");
+}
+
+/**
+ * DPDK callback to disable promiscuous mode.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ */
+static void
+mrvl_promiscuous_disable(struct rte_eth_dev *dev)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	int ret;
+
+	if (!priv->ppio)
+		return;
+
+	ret = pp2_ppio_set_promisc(priv->ppio, 0);
+	if (ret)
+		MRVL_LOG(ERR, "Failed to disable promiscuous mode");
+}
+
+/**
+ * DPDK callback to disable allmulticast mode.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ */
+static void
+mrvl_allmulticast_disable(struct rte_eth_dev *dev)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	int ret;
+
+	if (!priv->ppio)
+		return;
+
+	ret = pp2_ppio_set_mc_promisc(priv->ppio, 0);
+	if (ret)
+		MRVL_LOG(ERR, "Failed to disable all-multicast mode");
+}
+
+/**
+ * DPDK callback to remove a MAC address.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param index
+ *   MAC address index.
+ */
+static void
+mrvl_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	char buf[ETHER_ADDR_FMT_SIZE];
+	int ret;
+
+	if (!priv->ppio)
+		return;
+
+	if (priv->isolated)
+		return;
+
+	ret = pp2_ppio_remove_mac_addr(priv->ppio,
+				       dev->data->mac_addrs[index].addr_bytes);
+	if (ret) {
+		ether_format_addr(buf, sizeof(buf),
+				  &dev->data->mac_addrs[index]);
+		MRVL_LOG(ERR, "Failed to remove mac %s", buf);
+	}
+}
+
+/**
+ * DPDK callback to add a MAC address.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param mac_addr
+ *   MAC address to register.
+ * @param index
+ *   MAC address index.
+ * @param vmdq
+ *   VMDq pool index to associate address with (unused).
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_mac_addr_add(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
+		  uint32_t index, uint32_t vmdq __rte_unused)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	char buf[ETHER_ADDR_FMT_SIZE];
+	int ret;
+
+	if (priv->isolated)
+		return -ENOTSUP;
+
+	if (index == 0)
+		/* For setting index 0, mrvl_mac_addr_set() should be used.*/
+		return -1;
+
+	if (!priv->ppio)
+		return 0;
+
+	/*
+	 * Maximum number of uc addresses can be tuned via kernel module mvpp2x
+	 * parameter uc_filter_max. Maximum number of mc addresses is then
+	 * MRVL_MAC_ADDRS_MAX - uc_filter_max. Currently it defaults to 4 and
+	 * 21 respectively.
+	 *
+	 * If more than uc_filter_max uc addresses were added to filter list
+	 * then NIC will switch to promiscuous mode automatically.
+	 *
+	 * If more than MRVL_MAC_ADDRS_MAX - uc_filter_max number mc addresses
+	 * were added to filter list then NIC will switch to all-multicast mode
+	 * automatically.
+	 */
+	ret = pp2_ppio_add_mac_addr(priv->ppio, mac_addr->addr_bytes);
+	if (ret) {
+		ether_format_addr(buf, sizeof(buf), mac_addr);
+		MRVL_LOG(ERR, "Failed to add mac %s", buf);
+		return -1;
+	}
+
+	return 0;
+}
+
+/**
+ * DPDK callback to set the primary MAC address.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param mac_addr
+ *   MAC address to register.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	int ret;
+
+	if (!priv->ppio)
+		return 0;
+
+	if (priv->isolated)
+		return -ENOTSUP;
+
+	ret = pp2_ppio_set_mac_addr(priv->ppio, mac_addr->addr_bytes);
+	if (ret) {
+		char buf[ETHER_ADDR_FMT_SIZE];
+		ether_format_addr(buf, sizeof(buf), mac_addr);
+		MRVL_LOG(ERR, "Failed to set mac to %s", buf);
+	}
+
+	return ret;
+}
+
+/**
+ * DPDK callback to get device statistics.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param stats
+ *   Stats structure output buffer.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	struct pp2_ppio_statistics ppio_stats;
+	uint64_t drop_mac = 0;
+	unsigned int i, idx, ret;
+
+	if (!priv->ppio)
+		return -EPERM;
+
+	for (i = 0; i < dev->data->nb_rx_queues; i++) {
+		struct mrvl_rxq *rxq = dev->data->rx_queues[i];
+		struct pp2_ppio_inq_statistics rx_stats;
+
+		if (!rxq)
+			continue;
+
+		idx = rxq->queue_id;
+		if (unlikely(idx >= RTE_ETHDEV_QUEUE_STAT_CNTRS)) {
+			MRVL_LOG(ERR,
+				"rx queue %d stats out of range (0 - %d)",
+				idx, RTE_ETHDEV_QUEUE_STAT_CNTRS - 1);
+			continue;
+		}
+
+		ret = pp2_ppio_inq_get_statistics(priv->ppio,
+						  priv->rxq_map[idx].tc,
+						  priv->rxq_map[idx].inq,
+						  &rx_stats, 0);
+		if (unlikely(ret)) {
+			MRVL_LOG(ERR,
+				"Failed to update rx queue %d stats", idx);
+			break;
+		}
+
+		stats->q_ibytes[idx] = rxq->bytes_recv;
+		stats->q_ipackets[idx] = rx_stats.enq_desc - rxq->drop_mac;
+		stats->q_errors[idx] = rx_stats.drop_early +
+				       rx_stats.drop_fullq +
+				       rx_stats.drop_bm +
+				       rxq->drop_mac;
+		stats->ibytes += rxq->bytes_recv;
+		drop_mac += rxq->drop_mac;
+	}
+
+	for (i = 0; i < dev->data->nb_tx_queues; i++) {
+		struct mrvl_txq *txq = dev->data->tx_queues[i];
+		struct pp2_ppio_outq_statistics tx_stats;
+
+		if (!txq)
+			continue;
+
+		idx = txq->queue_id;
+		if (unlikely(idx >= RTE_ETHDEV_QUEUE_STAT_CNTRS)) {
+			MRVL_LOG(ERR,
+				"tx queue %d stats out of range (0 - %d)",
+				idx, RTE_ETHDEV_QUEUE_STAT_CNTRS - 1);
+		}
+
+		ret = pp2_ppio_outq_get_statistics(priv->ppio, idx,
+						   &tx_stats, 0);
+		if (unlikely(ret)) {
+			MRVL_LOG(ERR,
+				"Failed to update tx queue %d stats", idx);
+			break;
+		}
+
+		stats->q_opackets[idx] = tx_stats.deq_desc;
+		stats->q_obytes[idx] = txq->bytes_sent;
+		stats->obytes += txq->bytes_sent;
+	}
+
+	ret = pp2_ppio_get_statistics(priv->ppio, &ppio_stats, 0);
+	if (unlikely(ret)) {
+		MRVL_LOG(ERR, "Failed to update port statistics");
+		return ret;
+	}
+
+	stats->ipackets += ppio_stats.rx_packets - drop_mac;
+	stats->opackets += ppio_stats.tx_packets;
+	stats->imissed += ppio_stats.rx_fullq_dropped +
+			  ppio_stats.rx_bm_dropped +
+			  ppio_stats.rx_early_dropped +
+			  ppio_stats.rx_fifo_dropped +
+			  ppio_stats.rx_cls_dropped;
+	stats->ierrors = drop_mac;
+
+	return 0;
+}
+
+/**
+ * DPDK callback to clear device statistics.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ */
+static void
+mrvl_stats_reset(struct rte_eth_dev *dev)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	int i;
+
+	if (!priv->ppio)
+		return;
+
+	for (i = 0; i < dev->data->nb_rx_queues; i++) {
+		struct mrvl_rxq *rxq = dev->data->rx_queues[i];
+
+		pp2_ppio_inq_get_statistics(priv->ppio, priv->rxq_map[i].tc,
+					    priv->rxq_map[i].inq, NULL, 1);
+		rxq->bytes_recv = 0;
+		rxq->drop_mac = 0;
+	}
+
+	for (i = 0; i < dev->data->nb_tx_queues; i++) {
+		struct mrvl_txq *txq = dev->data->tx_queues[i];
+
+		pp2_ppio_outq_get_statistics(priv->ppio, i, NULL, 1);
+		txq->bytes_sent = 0;
+	}
+
+	pp2_ppio_get_statistics(priv->ppio, NULL, 1);
+}
+
+/**
+ * DPDK callback to get extended statistics.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param stats
+ *   Pointer to xstats table.
+ * @param n
+ *   Number of entries in xstats table.
+ * @return
+ *   Negative value on error, number of read xstats otherwise.
+ */
+static int
+mrvl_xstats_get(struct rte_eth_dev *dev,
+		struct rte_eth_xstat *stats, unsigned int n)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	struct pp2_ppio_statistics ppio_stats;
+	unsigned int i;
+
+	if (!stats)
+		return 0;
+
+	pp2_ppio_get_statistics(priv->ppio, &ppio_stats, 0);
+	for (i = 0; i < n && i < RTE_DIM(mrvl_xstats_tbl); i++) {
+		uint64_t val;
+
+		if (mrvl_xstats_tbl[i].size == sizeof(uint32_t))
+			val = *(uint32_t *)((uint8_t *)&ppio_stats +
+					    mrvl_xstats_tbl[i].offset);
+		else if (mrvl_xstats_tbl[i].size == sizeof(uint64_t))
+			val = *(uint64_t *)((uint8_t *)&ppio_stats +
+					    mrvl_xstats_tbl[i].offset);
+		else
+			return -EINVAL;
+
+		stats[i].id = i;
+		stats[i].value = val;
+	}
+
+	return n;
+}
+
+/**
+ * DPDK callback to reset extended statistics.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ */
+static void
+mrvl_xstats_reset(struct rte_eth_dev *dev)
+{
+	mrvl_stats_reset(dev);
+}
+
+/**
+ * DPDK callback to get extended statistics names.
+ *
+ * @param dev (unused)
+ *   Pointer to Ethernet device structure.
+ * @param xstats_names
+ *   Pointer to xstats names table.
+ * @param size
+ *   Size of the xstats names table.
+ * @return
+ *   Number of read names.
+ */
+static int
+mrvl_xstats_get_names(struct rte_eth_dev *dev __rte_unused,
+		      struct rte_eth_xstat_name *xstats_names,
+		      unsigned int size)
+{
+	unsigned int i;
+
+	if (!xstats_names)
+		return RTE_DIM(mrvl_xstats_tbl);
+
+	for (i = 0; i < size && i < RTE_DIM(mrvl_xstats_tbl); i++)
+		snprintf(xstats_names[i].name, RTE_ETH_XSTATS_NAME_SIZE, "%s",
+			 mrvl_xstats_tbl[i].name);
+
+	return size;
+}
+
+/**
+ * DPDK callback to get information about the device.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure (unused).
+ * @param info
+ *   Info structure output buffer.
+ */
+static void
+mrvl_dev_infos_get(struct rte_eth_dev *dev __rte_unused,
+		   struct rte_eth_dev_info *info)
+{
+	info->speed_capa = ETH_LINK_SPEED_10M |
+			   ETH_LINK_SPEED_100M |
+			   ETH_LINK_SPEED_1G |
+			   ETH_LINK_SPEED_10G;
+
+	info->max_rx_queues = MRVL_PP2_RXQ_MAX;
+	info->max_tx_queues = MRVL_PP2_TXQ_MAX;
+	info->max_mac_addrs = MRVL_MAC_ADDRS_MAX;
+
+	info->rx_desc_lim.nb_max = MRVL_PP2_RXD_MAX;
+	info->rx_desc_lim.nb_min = MRVL_PP2_RXD_MIN;
+	info->rx_desc_lim.nb_align = MRVL_PP2_RXD_ALIGN;
+
+	info->tx_desc_lim.nb_max = MRVL_PP2_TXD_MAX;
+	info->tx_desc_lim.nb_min = MRVL_PP2_TXD_MIN;
+	info->tx_desc_lim.nb_align = MRVL_PP2_TXD_ALIGN;
+
+	info->rx_offload_capa = MRVL_RX_OFFLOADS;
+	info->rx_queue_offload_capa = MRVL_RX_OFFLOADS;
+
+	info->tx_offload_capa = MRVL_TX_OFFLOADS;
+	info->tx_queue_offload_capa = MRVL_TX_OFFLOADS;
+
+	info->flow_type_rss_offloads = ETH_RSS_IPV4 |
+				       ETH_RSS_NONFRAG_IPV4_TCP |
+				       ETH_RSS_NONFRAG_IPV4_UDP;
+
+	/* By default packets are dropped if no descriptors are available */
+	info->default_rxconf.rx_drop_en = 1;
+	info->default_rxconf.offloads = DEV_RX_OFFLOAD_CRC_STRIP;
+
+	info->max_rx_pktlen = MRVL_PKT_SIZE_MAX;
+}
+
+/**
+ * Return supported packet types.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure (unused).
+ *
+ * @return
+ *   Const pointer to the table with supported packet types.
+ */
+static const uint32_t *
+mrvl_dev_supported_ptypes_get(struct rte_eth_dev *dev __rte_unused)
+{
+	static const uint32_t ptypes[] = {
+		RTE_PTYPE_L2_ETHER,
+		RTE_PTYPE_L3_IPV4,
+		RTE_PTYPE_L3_IPV4_EXT,
+		RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
+		RTE_PTYPE_L3_IPV6,
+		RTE_PTYPE_L3_IPV6_EXT,
+		RTE_PTYPE_L2_ETHER_ARP,
+		RTE_PTYPE_L4_TCP,
+		RTE_PTYPE_L4_UDP
+	};
+
+	return ptypes;
+}
+
+/**
+ * DPDK callback to get information about specific receive queue.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param rx_queue_id
+ *   Receive queue index.
+ * @param qinfo
+ *   Receive queue information structure.
+ */
+static void mrvl_rxq_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
+			      struct rte_eth_rxq_info *qinfo)
+{
+	struct mrvl_rxq *q = dev->data->rx_queues[rx_queue_id];
+	struct mrvl_priv *priv = dev->data->dev_private;
+	int inq = priv->rxq_map[rx_queue_id].inq;
+	int tc = priv->rxq_map[rx_queue_id].tc;
+	struct pp2_ppio_tc_params *tc_params =
+		&priv->ppio_params.inqs_params.tcs_params[tc];
+
+	qinfo->mp = q->mp;
+	qinfo->nb_desc = tc_params->inqs_params[inq].size;
+}
+
+/**
+ * DPDK callback to get information about specific transmit queue.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param tx_queue_id
+ *   Transmit queue index.
+ * @param qinfo
+ *   Transmit queue information structure.
+ */
+static void mrvl_txq_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
+			      struct rte_eth_txq_info *qinfo)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	struct mrvl_txq *txq = dev->data->tx_queues[tx_queue_id];
+
+	qinfo->nb_desc =
+		priv->ppio_params.outqs_params.outqs_params[tx_queue_id].size;
+	qinfo->conf.tx_deferred_start = txq->tx_deferred_start;
+}
+
+/**
+ * DPDK callback to Configure a VLAN filter.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param vlan_id
+ *   VLAN ID to filter.
+ * @param on
+ *   Toggle filter.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+
+	if (!priv->ppio)
+		return -EPERM;
+
+	if (priv->isolated)
+		return -ENOTSUP;
+
+	return on ? pp2_ppio_add_vlan(priv->ppio, vlan_id) :
+		    pp2_ppio_remove_vlan(priv->ppio, vlan_id);
+}
+
+/**
+ * Release buffers to hardware bpool (buffer-pool)
+ *
+ * @param rxq
+ *   Receive queue pointer.
+ * @param num
+ *   Number of buffers to release to bpool.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_fill_bpool(struct mrvl_rxq *rxq, int num)
+{
+	struct buff_release_entry entries[MRVL_PP2_RXD_MAX];
+	struct rte_mbuf *mbufs[MRVL_PP2_RXD_MAX];
+	int i, ret;
+	unsigned int core_id;
+	struct pp2_hif *hif;
+	struct pp2_bpool *bpool;
+
+	core_id = rte_lcore_id();
+	if (core_id == LCORE_ID_ANY)
+		core_id = 0;
+
+	hif = mrvl_get_hif(rxq->priv, core_id);
+	if (!hif)
+		return -1;
+
+	bpool = rxq->priv->bpool;
+
+	ret = rte_pktmbuf_alloc_bulk(rxq->mp, mbufs, num);
+	if (ret)
+		return ret;
+
+	if (cookie_addr_high == MRVL_COOKIE_ADDR_INVALID)
+		cookie_addr_high =
+			(uint64_t)mbufs[0] & MRVL_COOKIE_HIGH_ADDR_MASK;
+
+	for (i = 0; i < num; i++) {
+		if (((uint64_t)mbufs[i] & MRVL_COOKIE_HIGH_ADDR_MASK)
+			!= cookie_addr_high) {
+			MRVL_LOG(ERR,
+				"mbuf virtual addr high 0x%lx out of range",
+				(uint64_t)mbufs[i] >> 32);
+			goto out;
+		}
+
+		entries[i].buff.addr =
+			rte_mbuf_data_iova_default(mbufs[i]);
+		entries[i].buff.cookie = (pp2_cookie_t)(uint64_t)mbufs[i];
+		entries[i].bpool = bpool;
+	}
+
+	pp2_bpool_put_buffs(hif, entries, (uint16_t *)&i);
+	mrvl_port_bpool_size[bpool->pp2_id][bpool->id][core_id] += i;
+
+	if (i != num)
+		goto out;
+
+	return 0;
+out:
+	for (; i < num; i++)
+		rte_pktmbuf_free(mbufs[i]);
+
+	return -1;
+}
+
+/**
+ * DPDK callback to configure the receive queue.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param idx
+ *   RX queue index.
+ * @param desc
+ *   Number of descriptors to configure in queue.
+ * @param socket
+ *   NUMA socket on which memory must be allocated.
+ * @param conf
+ *   Thresholds parameters.
+ * @param mp
+ *   Memory pool for buffer allocations.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
+		    unsigned int socket,
+		    const struct rte_eth_rxconf *conf,
+		    struct rte_mempool *mp)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	struct mrvl_rxq *rxq;
+	uint32_t min_size,
+		 max_rx_pkt_len = dev->data->dev_conf.rxmode.max_rx_pkt_len;
+	int ret, tc, inq;
+	uint64_t offloads;
+
+	offloads = conf->offloads | dev->data->dev_conf.rxmode.offloads;
+
+	if (priv->rxq_map[idx].tc == MRVL_UNKNOWN_TC) {
+		/*
+		 * Unknown TC mapping, mapping will not have a correct queue.
+		 */
+		MRVL_LOG(ERR, "Unknown TC mapping for queue %hu eth%hhu",
+			idx, priv->ppio_id);
+		return -EFAULT;
+	}
+
+	min_size = rte_pktmbuf_data_room_size(mp) - RTE_PKTMBUF_HEADROOM -
+		   MRVL_PKT_EFFEC_OFFS;
+	if (min_size < max_rx_pkt_len) {
+		MRVL_LOG(ERR,
+			"Mbuf size must be increased to %u bytes to hold up to %u bytes of data.",
+			max_rx_pkt_len + RTE_PKTMBUF_HEADROOM +
+			MRVL_PKT_EFFEC_OFFS,
+			max_rx_pkt_len);
+		return -EINVAL;
+	}
+
+	if (dev->data->rx_queues[idx]) {
+		rte_free(dev->data->rx_queues[idx]);
+		dev->data->rx_queues[idx] = NULL;
+	}
+
+	rxq = rte_zmalloc_socket("rxq", sizeof(*rxq), 0, socket);
+	if (!rxq)
+		return -ENOMEM;
+
+	rxq->priv = priv;
+	rxq->mp = mp;
+	rxq->cksum_enabled = offloads & DEV_RX_OFFLOAD_IPV4_CKSUM;
+	rxq->queue_id = idx;
+	rxq->port_id = dev->data->port_id;
+	mrvl_port_to_bpool_lookup[rxq->port_id] = priv->bpool;
+
+	tc = priv->rxq_map[rxq->queue_id].tc,
+	inq = priv->rxq_map[rxq->queue_id].inq;
+	priv->ppio_params.inqs_params.tcs_params[tc].inqs_params[inq].size =
+		desc;
+
+	ret = mrvl_fill_bpool(rxq, desc);
+	if (ret) {
+		rte_free(rxq);
+		return ret;
+	}
+
+	priv->bpool_init_size += desc;
+
+	dev->data->rx_queues[idx] = rxq;
+
+	return 0;
+}
+
+/**
+ * DPDK callback to release the receive queue.
+ *
+ * @param rxq
+ *   Generic receive queue pointer.
+ */
+static void
+mrvl_rx_queue_release(void *rxq)
+{
+	struct mrvl_rxq *q = rxq;
+	struct pp2_ppio_tc_params *tc_params;
+	int i, num, tc, inq;
+	struct pp2_hif *hif;
+	unsigned int core_id = rte_lcore_id();
+
+	if (core_id == LCORE_ID_ANY)
+		core_id = 0;
+
+	if (!q)
+		return;
+
+	hif = mrvl_get_hif(q->priv, core_id);
+
+	if (!hif)
+		return;
+
+	tc = q->priv->rxq_map[q->queue_id].tc;
+	inq = q->priv->rxq_map[q->queue_id].inq;
+	tc_params = &q->priv->ppio_params.inqs_params.tcs_params[tc];
+	num = tc_params->inqs_params[inq].size;
+	for (i = 0; i < num; i++) {
+		struct pp2_buff_inf inf;
+		uint64_t addr;
+
+		pp2_bpool_get_buff(hif, q->priv->bpool, &inf);
+		addr = cookie_addr_high | inf.cookie;
+		rte_pktmbuf_free((struct rte_mbuf *)addr);
+	}
+
+	rte_free(q);
+}
+
+/**
+ * DPDK callback to configure the transmit queue.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param idx
+ *   Transmit queue index.
+ * @param desc
+ *   Number of descriptors to configure in the queue.
+ * @param socket
+ *   NUMA socket on which memory must be allocated.
+ * @param conf
+ *   Tx queue configuration parameters.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_tx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
+		    unsigned int socket,
+		    const struct rte_eth_txconf *conf)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	struct mrvl_txq *txq;
+
+	if (dev->data->tx_queues[idx]) {
+		rte_free(dev->data->tx_queues[idx]);
+		dev->data->tx_queues[idx] = NULL;
+	}
+
+	txq = rte_zmalloc_socket("txq", sizeof(*txq), 0, socket);
+	if (!txq)
+		return -ENOMEM;
+
+	txq->priv = priv;
+	txq->queue_id = idx;
+	txq->port_id = dev->data->port_id;
+	txq->tx_deferred_start = conf->tx_deferred_start;
+	dev->data->tx_queues[idx] = txq;
+
+	priv->ppio_params.outqs_params.outqs_params[idx].size = desc;
+
+	return 0;
+}
+
+/**
+ * DPDK callback to release the transmit queue.
+ *
+ * @param txq
+ *   Generic transmit queue pointer.
+ */
+static void
+mrvl_tx_queue_release(void *txq)
+{
+	struct mrvl_txq *q = txq;
+
+	if (!q)
+		return;
+
+	rte_free(q);
+}
+
+/**
+ * DPDK callback to get flow control configuration.
+ *
+ * @param dev
+ *  Pointer to Ethernet device structure.
+ * @param fc_conf
+ *  Pointer to the flow control configuration.
+ *
+ * @return
+ *  0 on success, negative error value otherwise.
+ */
+static int
+mrvl_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	int ret, en;
+
+	if (!priv)
+		return -EPERM;
+
+	ret = pp2_ppio_get_rx_pause(priv->ppio, &en);
+	if (ret) {
+		MRVL_LOG(ERR, "Failed to read rx pause state");
+		return ret;
+	}
+
+	fc_conf->mode = en ? RTE_FC_RX_PAUSE : RTE_FC_NONE;
+
+	return 0;
+}
+
+/**
+ * DPDK callback to set flow control configuration.
+ *
+ * @param dev
+ *  Pointer to Ethernet device structure.
+ * @param fc_conf
+ *  Pointer to the flow control configuration.
+ *
+ * @return
+ *  0 on success, negative error value otherwise.
+ */
+static int
+mrvl_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+
+	if (!priv)
+		return -EPERM;
+
+	if (fc_conf->high_water ||
+	    fc_conf->low_water ||
+	    fc_conf->pause_time ||
+	    fc_conf->mac_ctrl_frame_fwd ||
+	    fc_conf->autoneg) {
+		MRVL_LOG(ERR, "Flowctrl parameter is not supported");
+
+		return -EINVAL;
+	}
+
+	if (fc_conf->mode == RTE_FC_NONE ||
+	    fc_conf->mode == RTE_FC_RX_PAUSE) {
+		int ret, en;
+
+		en = fc_conf->mode == RTE_FC_NONE ? 0 : 1;
+		ret = pp2_ppio_set_rx_pause(priv->ppio, en);
+		if (ret)
+			MRVL_LOG(ERR,
+				"Failed to change flowctrl on RX side");
+
+		return ret;
+	}
+
+	return 0;
+}
+
+/**
+ * Update RSS hash configuration
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param rss_conf
+ *   Pointer to RSS configuration.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_rss_hash_update(struct rte_eth_dev *dev,
+		     struct rte_eth_rss_conf *rss_conf)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+
+	if (priv->isolated)
+		return -ENOTSUP;
+
+	return mrvl_configure_rss(priv, rss_conf);
+}
+
+/**
+ * DPDK callback to get RSS hash configuration.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @rss_conf
+ *   Pointer to RSS configuration.
+ *
+ * @return
+ *   Always 0.
+ */
+static int
+mrvl_rss_hash_conf_get(struct rte_eth_dev *dev,
+		       struct rte_eth_rss_conf *rss_conf)
+{
+	struct mrvl_priv *priv = dev->data->dev_private;
+	enum pp2_ppio_hash_type hash_type =
+		priv->ppio_params.inqs_params.hash_type;
+
+	rss_conf->rss_key = NULL;
+
+	if (hash_type == PP2_PPIO_HASH_T_NONE)
+		rss_conf->rss_hf = 0;
+	else if (hash_type == PP2_PPIO_HASH_T_2_TUPLE)
+		rss_conf->rss_hf = ETH_RSS_IPV4;
+	else if (hash_type == PP2_PPIO_HASH_T_5_TUPLE && priv->rss_hf_tcp)
+		rss_conf->rss_hf = ETH_RSS_NONFRAG_IPV4_TCP;
+	else if (hash_type == PP2_PPIO_HASH_T_5_TUPLE && !priv->rss_hf_tcp)
+		rss_conf->rss_hf = ETH_RSS_NONFRAG_IPV4_UDP;
+
+	return 0;
+}
+
+/**
+ * DPDK callback to get rte_flow callbacks.
+ *
+ * @param dev
+ *   Pointer to the device structure.
+ * @param filer_type
+ *   Flow filter type.
+ * @param filter_op
+ *   Flow filter operation.
+ * @param arg
+ *   Pointer to pass the flow ops.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_eth_filter_ctrl(struct rte_eth_dev *dev __rte_unused,
+		     enum rte_filter_type filter_type,
+		     enum rte_filter_op filter_op, void *arg)
+{
+	switch (filter_type) {
+	case RTE_ETH_FILTER_GENERIC:
+		if (filter_op != RTE_ETH_FILTER_GET)
+			return -EINVAL;
+		*(const void **)arg = &mrvl_flow_ops;
+		return 0;
+	default:
+		MRVL_LOG(WARNING, "Filter type (%d) not supported",
+				filter_type);
+		return -EINVAL;
+	}
+}
+
+static const struct eth_dev_ops mrvl_ops = {
+	.dev_configure = mrvl_dev_configure,
+	.dev_start = mrvl_dev_start,
+	.dev_stop = mrvl_dev_stop,
+	.dev_set_link_up = mrvl_dev_set_link_up,
+	.dev_set_link_down = mrvl_dev_set_link_down,
+	.dev_close = mrvl_dev_close,
+	.link_update = mrvl_link_update,
+	.promiscuous_enable = mrvl_promiscuous_enable,
+	.allmulticast_enable = mrvl_allmulticast_enable,
+	.promiscuous_disable = mrvl_promiscuous_disable,
+	.allmulticast_disable = mrvl_allmulticast_disable,
+	.mac_addr_remove = mrvl_mac_addr_remove,
+	.mac_addr_add = mrvl_mac_addr_add,
+	.mac_addr_set = mrvl_mac_addr_set,
+	.mtu_set = mrvl_mtu_set,
+	.stats_get = mrvl_stats_get,
+	.stats_reset = mrvl_stats_reset,
+	.xstats_get = mrvl_xstats_get,
+	.xstats_reset = mrvl_xstats_reset,
+	.xstats_get_names = mrvl_xstats_get_names,
+	.dev_infos_get = mrvl_dev_infos_get,
+	.dev_supported_ptypes_get = mrvl_dev_supported_ptypes_get,
+	.rxq_info_get = mrvl_rxq_info_get,
+	.txq_info_get = mrvl_txq_info_get,
+	.vlan_filter_set = mrvl_vlan_filter_set,
+	.tx_queue_start = mrvl_tx_queue_start,
+	.tx_queue_stop = mrvl_tx_queue_stop,
+	.rx_queue_setup = mrvl_rx_queue_setup,
+	.rx_queue_release = mrvl_rx_queue_release,
+	.tx_queue_setup = mrvl_tx_queue_setup,
+	.tx_queue_release = mrvl_tx_queue_release,
+	.flow_ctrl_get = mrvl_flow_ctrl_get,
+	.flow_ctrl_set = mrvl_flow_ctrl_set,
+	.rss_hash_update = mrvl_rss_hash_update,
+	.rss_hash_conf_get = mrvl_rss_hash_conf_get,
+	.filter_ctrl = mrvl_eth_filter_ctrl,
+};
+
+/**
+ * Return packet type information and l3/l4 offsets.
+ *
+ * @param desc
+ *   Pointer to the received packet descriptor.
+ * @param l3_offset
+ *   l3 packet offset.
+ * @param l4_offset
+ *   l4 packet offset.
+ *
+ * @return
+ *   Packet type information.
+ */
+static inline uint64_t
+mrvl_desc_to_packet_type_and_offset(struct pp2_ppio_desc *desc,
+				    uint8_t *l3_offset, uint8_t *l4_offset)
+{
+	enum pp2_inq_l3_type l3_type;
+	enum pp2_inq_l4_type l4_type;
+	uint64_t packet_type;
+
+	pp2_ppio_inq_desc_get_l3_info(desc, &l3_type, l3_offset);
+	pp2_ppio_inq_desc_get_l4_info(desc, &l4_type, l4_offset);
+
+	packet_type = RTE_PTYPE_L2_ETHER;
+
+	switch (l3_type) {
+	case PP2_INQ_L3_TYPE_IPV4_NO_OPTS:
+		packet_type |= RTE_PTYPE_L3_IPV4;
+		break;
+	case PP2_INQ_L3_TYPE_IPV4_OK:
+		packet_type |= RTE_PTYPE_L3_IPV4_EXT;
+		break;
+	case PP2_INQ_L3_TYPE_IPV4_TTL_ZERO:
+		packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
+		break;
+	case PP2_INQ_L3_TYPE_IPV6_NO_EXT:
+		packet_type |= RTE_PTYPE_L3_IPV6;
+		break;
+	case PP2_INQ_L3_TYPE_IPV6_EXT:
+		packet_type |= RTE_PTYPE_L3_IPV6_EXT;
+		break;
+	case PP2_INQ_L3_TYPE_ARP:
+		packet_type |= RTE_PTYPE_L2_ETHER_ARP;
+		/*
+		 * In case of ARP l4_offset is set to wrong value.
+		 * Set it to proper one so that later on mbuf->l3_len can be
+		 * calculated subtracting l4_offset and l3_offset.
+		 */
+		*l4_offset = *l3_offset + MRVL_ARP_LENGTH;
+		break;
+	default:
+		MRVL_LOG(DEBUG, "Failed to recognise l3 packet type");
+		break;
+	}
+
+	switch (l4_type) {
+	case PP2_INQ_L4_TYPE_TCP:
+		packet_type |= RTE_PTYPE_L4_TCP;
+		break;
+	case PP2_INQ_L4_TYPE_UDP:
+		packet_type |= RTE_PTYPE_L4_UDP;
+		break;
+	default:
+		MRVL_LOG(DEBUG, "Failed to recognise l4 packet type");
+		break;
+	}
+
+	return packet_type;
+}
+
+/**
+ * Get offload information from the received packet descriptor.
+ *
+ * @param desc
+ *   Pointer to the received packet descriptor.
+ *
+ * @return
+ *   Mbuf offload flags.
+ */
+static inline uint64_t
+mrvl_desc_to_ol_flags(struct pp2_ppio_desc *desc)
+{
+	uint64_t flags;
+	enum pp2_inq_desc_status status;
+
+	status = pp2_ppio_inq_desc_get_l3_pkt_error(desc);
+	if (unlikely(status != PP2_DESC_ERR_OK))
+		flags = PKT_RX_IP_CKSUM_BAD;
+	else
+		flags = PKT_RX_IP_CKSUM_GOOD;
+
+	status = pp2_ppio_inq_desc_get_l4_pkt_error(desc);
+	if (unlikely(status != PP2_DESC_ERR_OK))
+		flags |= PKT_RX_L4_CKSUM_BAD;
+	else
+		flags |= PKT_RX_L4_CKSUM_GOOD;
+
+	return flags;
+}
+
+/**
+ * DPDK callback for receive.
+ *
+ * @param rxq
+ *   Generic pointer to the receive queue.
+ * @param rx_pkts
+ *   Array to store received packets.
+ * @param nb_pkts
+ *   Maximum number of packets in array.
+ *
+ * @return
+ *   Number of packets successfully received.
+ */
+static uint16_t
+mrvl_rx_pkt_burst(void *rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
+{
+	struct mrvl_rxq *q = rxq;
+	struct pp2_ppio_desc descs[nb_pkts];
+	struct pp2_bpool *bpool;
+	int i, ret, rx_done = 0;
+	int num;
+	struct pp2_hif *hif;
+	unsigned int core_id = rte_lcore_id();
+
+	hif = mrvl_get_hif(q->priv, core_id);
+
+	if (unlikely(!q->priv->ppio || !hif))
+		return 0;
+
+	bpool = q->priv->bpool;
+
+	ret = pp2_ppio_recv(q->priv->ppio, q->priv->rxq_map[q->queue_id].tc,
+			    q->priv->rxq_map[q->queue_id].inq, descs, &nb_pkts);
+	if (unlikely(ret < 0)) {
+		MRVL_LOG(ERR, "Failed to receive packets");
+		return 0;
+	}
+	mrvl_port_bpool_size[bpool->pp2_id][bpool->id][core_id] -= nb_pkts;
+
+	for (i = 0; i < nb_pkts; i++) {
+		struct rte_mbuf *mbuf;
+		uint8_t l3_offset, l4_offset;
+		enum pp2_inq_desc_status status;
+		uint64_t addr;
+
+		if (likely(nb_pkts - i > MRVL_MUSDK_PREFETCH_SHIFT)) {
+			struct pp2_ppio_desc *pref_desc;
+			u64 pref_addr;
+
+			pref_desc = &descs[i + MRVL_MUSDK_PREFETCH_SHIFT];
+			pref_addr = cookie_addr_high |
+				    pp2_ppio_inq_desc_get_cookie(pref_desc);
+			rte_mbuf_prefetch_part1((struct rte_mbuf *)(pref_addr));
+			rte_mbuf_prefetch_part2((struct rte_mbuf *)(pref_addr));
+		}
+
+		addr = cookie_addr_high |
+		       pp2_ppio_inq_desc_get_cookie(&descs[i]);
+		mbuf = (struct rte_mbuf *)addr;
+		rte_pktmbuf_reset(mbuf);
+
+		/* drop packet in case of mac, overrun or resource error */
+		status = pp2_ppio_inq_desc_get_l2_pkt_error(&descs[i]);
+		if (unlikely(status != PP2_DESC_ERR_OK)) {
+			struct pp2_buff_inf binf = {
+				.addr = rte_mbuf_data_iova_default(mbuf),
+				.cookie = (pp2_cookie_t)(uint64_t)mbuf,
+			};
+
+			pp2_bpool_put_buff(hif, bpool, &binf);
+			mrvl_port_bpool_size
+				[bpool->pp2_id][bpool->id][core_id]++;
+			q->drop_mac++;
+			continue;
+		}
+
+		mbuf->data_off += MRVL_PKT_EFFEC_OFFS;
+		mbuf->pkt_len = pp2_ppio_inq_desc_get_pkt_len(&descs[i]);
+		mbuf->data_len = mbuf->pkt_len;
+		mbuf->port = q->port_id;
+		mbuf->packet_type =
+			mrvl_desc_to_packet_type_and_offset(&descs[i],
+							    &l3_offset,
+							    &l4_offset);
+		mbuf->l2_len = l3_offset;
+		mbuf->l3_len = l4_offset - l3_offset;
+
+		if (likely(q->cksum_enabled))
+			mbuf->ol_flags = mrvl_desc_to_ol_flags(&descs[i]);
+
+		rx_pkts[rx_done++] = mbuf;
+		q->bytes_recv += mbuf->pkt_len;
+	}
+
+	if (rte_spinlock_trylock(&q->priv->lock) == 1) {
+		num = mrvl_get_bpool_size(bpool->pp2_id, bpool->id);
+
+		if (unlikely(num <= q->priv->bpool_min_size ||
+			     (!rx_done && num < q->priv->bpool_init_size))) {
+			ret = mrvl_fill_bpool(q, MRVL_BURST_SIZE);
+			if (ret)
+				MRVL_LOG(ERR, "Failed to fill bpool");
+		} else if (unlikely(num > q->priv->bpool_max_size)) {
+			int i;
+			int pkt_to_remove = num - q->priv->bpool_init_size;
+			struct rte_mbuf *mbuf;
+			struct pp2_buff_inf buff;
+
+			MRVL_LOG(DEBUG,
+				"port-%d:%d: bpool %d oversize - remove %d buffers (pool size: %d -> %d)",
+				bpool->pp2_id, q->priv->ppio->port_id,
+				bpool->id, pkt_to_remove, num,
+				q->priv->bpool_init_size);
+
+			for (i = 0; i < pkt_to_remove; i++) {
+				ret = pp2_bpool_get_buff(hif, bpool, &buff);
+				if (ret)
+					break;
+				mbuf = (struct rte_mbuf *)
+					(cookie_addr_high | buff.cookie);
+				rte_pktmbuf_free(mbuf);
+			}
+			mrvl_port_bpool_size
+				[bpool->pp2_id][bpool->id][core_id] -= i;
+		}
+		rte_spinlock_unlock(&q->priv->lock);
+	}
+
+	return rx_done;
+}
+
+/**
+ * Prepare offload information.
+ *
+ * @param ol_flags
+ *   Offload flags.
+ * @param packet_type
+ *   Packet type bitfield.
+ * @param l3_type
+ *   Pointer to the pp2_ouq_l3_type structure.
+ * @param l4_type
+ *   Pointer to the pp2_outq_l4_type structure.
+ * @param gen_l3_cksum
+ *   Will be set to 1 in case l3 checksum is computed.
+ * @param l4_cksum
+ *   Will be set to 1 in case l4 checksum is computed.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static inline int
+mrvl_prepare_proto_info(uint64_t ol_flags, uint32_t packet_type,
+			enum pp2_outq_l3_type *l3_type,
+			enum pp2_outq_l4_type *l4_type,
+			int *gen_l3_cksum,
+			int *gen_l4_cksum)
+{
+	/*
+	 * Based on ol_flags prepare information
+	 * for pp2_ppio_outq_desc_set_proto_info() which setups descriptor
+	 * for offloading.
+	 */
+	if (ol_flags & PKT_TX_IPV4) {
+		*l3_type = PP2_OUTQ_L3_TYPE_IPV4;
+		*gen_l3_cksum = ol_flags & PKT_TX_IP_CKSUM ? 1 : 0;
+	} else if (ol_flags & PKT_TX_IPV6) {
+		*l3_type = PP2_OUTQ_L3_TYPE_IPV6;
+		/* no checksum for ipv6 header */
+		*gen_l3_cksum = 0;
+	} else {
+		/* if something different then stop processing */
+		return -1;
+	}
+
+	ol_flags &= PKT_TX_L4_MASK;
+	if ((packet_type & RTE_PTYPE_L4_TCP) &&
+	    ol_flags == PKT_TX_TCP_CKSUM) {
+		*l4_type = PP2_OUTQ_L4_TYPE_TCP;
+		*gen_l4_cksum = 1;
+	} else if ((packet_type & RTE_PTYPE_L4_UDP) &&
+		   ol_flags == PKT_TX_UDP_CKSUM) {
+		*l4_type = PP2_OUTQ_L4_TYPE_UDP;
+		*gen_l4_cksum = 1;
+	} else {
+		*l4_type = PP2_OUTQ_L4_TYPE_OTHER;
+		/* no checksum for other type */
+		*gen_l4_cksum = 0;
+	}
+
+	return 0;
+}
+
+/**
+ * Release already sent buffers to bpool (buffer-pool).
+ *
+ * @param ppio
+ *   Pointer to the port structure.
+ * @param hif
+ *   Pointer to the MUSDK hardware interface.
+ * @param sq
+ *   Pointer to the shadow queue.
+ * @param qid
+ *   Queue id number.
+ * @param force
+ *   Force releasing packets.
+ */
+static inline void
+mrvl_free_sent_buffers(struct pp2_ppio *ppio, struct pp2_hif *hif,
+		       unsigned int core_id, struct mrvl_shadow_txq *sq,
+		       int qid, int force)
+{
+	struct buff_release_entry *entry;
+	uint16_t nb_done = 0, num = 0, skip_bufs = 0;
+	int i;
+
+	pp2_ppio_get_num_outq_done(ppio, hif, qid, &nb_done);
+
+	sq->num_to_release += nb_done;
+
+	if (likely(!force &&
+		   sq->num_to_release < MRVL_PP2_BUF_RELEASE_BURST_SIZE))
+		return;
+
+	nb_done = sq->num_to_release;
+	sq->num_to_release = 0;
+
+	for (i = 0; i < nb_done; i++) {
+		entry = &sq->ent[sq->tail + num];
+		if (unlikely(!entry->buff.addr)) {
+			MRVL_LOG(ERR,
+				"Shadow memory @%d: cookie(%lx), pa(%lx)!",
+				sq->tail, (u64)entry->buff.cookie,
+				(u64)entry->buff.addr);
+			skip_bufs = 1;
+			goto skip;
+		}
+
+		if (unlikely(!entry->bpool)) {
+			struct rte_mbuf *mbuf;
+
+			mbuf = (struct rte_mbuf *)
+			       (cookie_addr_high | entry->buff.cookie);
+			rte_pktmbuf_free(mbuf);
+			skip_bufs = 1;
+			goto skip;
+		}
+
+		mrvl_port_bpool_size
+			[entry->bpool->pp2_id][entry->bpool->id][core_id]++;
+		num++;
+		if (unlikely(sq->tail + num == MRVL_PP2_TX_SHADOWQ_SIZE))
+			goto skip;
+		continue;
+skip:
+		if (likely(num))
+			pp2_bpool_put_buffs(hif, &sq->ent[sq->tail], &num);
+		num += skip_bufs;
+		sq->tail = (sq->tail + num) & MRVL_PP2_TX_SHADOWQ_MASK;
+		sq->size -= num;
+		num = 0;
+		skip_bufs = 0;
+	}
+
+	if (likely(num)) {
+		pp2_bpool_put_buffs(hif, &sq->ent[sq->tail], &num);
+		sq->tail = (sq->tail + num) & MRVL_PP2_TX_SHADOWQ_MASK;
+		sq->size -= num;
+	}
+}
+
+/**
+ * DPDK callback for transmit.
+ *
+ * @param txq
+ *   Generic pointer transmit queue.
+ * @param tx_pkts
+ *   Packets to transmit.
+ * @param nb_pkts
+ *   Number of packets in array.
+ *
+ * @return
+ *   Number of packets successfully transmitted.
+ */
+static uint16_t
+mrvl_tx_pkt_burst(void *txq, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
+{
+	struct mrvl_txq *q = txq;
+	struct mrvl_shadow_txq *sq;
+	struct pp2_hif *hif;
+	struct pp2_ppio_desc descs[nb_pkts];
+	unsigned int core_id = rte_lcore_id();
+	int i, ret, bytes_sent = 0;
+	uint16_t num, sq_free_size;
+	uint64_t addr;
+
+	hif = mrvl_get_hif(q->priv, core_id);
+	sq = &q->shadow_txqs[core_id];
+
+	if (unlikely(!q->priv->ppio || !hif))
+		return 0;
+
+	if (sq->size)
+		mrvl_free_sent_buffers(q->priv->ppio, hif, core_id,
+				       sq, q->queue_id, 0);
+
+	sq_free_size = MRVL_PP2_TX_SHADOWQ_SIZE - sq->size - 1;
+	if (unlikely(nb_pkts > sq_free_size)) {
+		MRVL_LOG(DEBUG,
+			"No room in shadow queue for %d packets! %d packets will be sent.",
+			nb_pkts, sq_free_size);
+		nb_pkts = sq_free_size;
+	}
+
+	for (i = 0; i < nb_pkts; i++) {
+		struct rte_mbuf *mbuf = tx_pkts[i];
+		int gen_l3_cksum, gen_l4_cksum;
+		enum pp2_outq_l3_type l3_type;
+		enum pp2_outq_l4_type l4_type;
+
+		if (likely(nb_pkts - i > MRVL_MUSDK_PREFETCH_SHIFT)) {
+			struct rte_mbuf *pref_pkt_hdr;
+
+			pref_pkt_hdr = tx_pkts[i + MRVL_MUSDK_PREFETCH_SHIFT];
+			rte_mbuf_prefetch_part1(pref_pkt_hdr);
+			rte_mbuf_prefetch_part2(pref_pkt_hdr);
+		}
+
+		sq->ent[sq->head].buff.cookie = (pp2_cookie_t)(uint64_t)mbuf;
+		sq->ent[sq->head].buff.addr =
+			rte_mbuf_data_iova_default(mbuf);
+		sq->ent[sq->head].bpool =
+			(unlikely(mbuf->port >= RTE_MAX_ETHPORTS ||
+			 mbuf->refcnt > 1)) ? NULL :
+			 mrvl_port_to_bpool_lookup[mbuf->port];
+		sq->head = (sq->head + 1) & MRVL_PP2_TX_SHADOWQ_MASK;
+		sq->size++;
+
+		pp2_ppio_outq_desc_reset(&descs[i]);
+		pp2_ppio_outq_desc_set_phys_addr(&descs[i],
+						 rte_pktmbuf_iova(mbuf));
+		pp2_ppio_outq_desc_set_pkt_offset(&descs[i], 0);
+		pp2_ppio_outq_desc_set_pkt_len(&descs[i],
+					       rte_pktmbuf_pkt_len(mbuf));
+
+		bytes_sent += rte_pktmbuf_pkt_len(mbuf);
+		/*
+		 * in case unsupported ol_flags were passed
+		 * do not update descriptor offload information
+		 */
+		ret = mrvl_prepare_proto_info(mbuf->ol_flags, mbuf->packet_type,
+					      &l3_type, &l4_type, &gen_l3_cksum,
+					      &gen_l4_cksum);
+		if (unlikely(ret))
+			continue;
+
+		pp2_ppio_outq_desc_set_proto_info(&descs[i], l3_type, l4_type,
+						  mbuf->l2_len,
+						  mbuf->l2_len + mbuf->l3_len,
+						  gen_l3_cksum, gen_l4_cksum);
+	}
+
+	num = nb_pkts;
+	pp2_ppio_send(q->priv->ppio, hif, q->queue_id, descs, &nb_pkts);
+	/* number of packets that were not sent */
+	if (unlikely(num > nb_pkts)) {
+		for (i = nb_pkts; i < num; i++) {
+			sq->head = (MRVL_PP2_TX_SHADOWQ_SIZE + sq->head - 1) &
+				MRVL_PP2_TX_SHADOWQ_MASK;
+			addr = cookie_addr_high | sq->ent[sq->head].buff.cookie;
+			bytes_sent -=
+				rte_pktmbuf_pkt_len((struct rte_mbuf *)addr);
+		}
+		sq->size -= num - nb_pkts;
+	}
+
+	q->bytes_sent += bytes_sent;
+
+	return nb_pkts;
+}
+
+/**
+ * Initialize packet processor.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_init_pp2(void)
+{
+	struct pp2_init_params init_params;
+
+	memset(&init_params, 0, sizeof(init_params));
+	init_params.hif_reserved_map = MRVL_MUSDK_HIFS_RESERVED;
+	init_params.bm_pool_reserved_map = MRVL_MUSDK_BPOOLS_RESERVED;
+	init_params.rss_tbl_reserved_map = MRVL_MUSDK_RSS_RESERVED;
+
+	return pp2_init(&init_params);
+}
+
+/**
+ * Deinitialize packet processor.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static void
+mrvl_deinit_pp2(void)
+{
+	pp2_deinit();
+}
+
+/**
+ * Create private device structure.
+ *
+ * @param dev_name
+ *   Pointer to the port name passed in the initialization parameters.
+ *
+ * @return
+ *   Pointer to the newly allocated private device structure.
+ */
+static struct mrvl_priv *
+mrvl_priv_create(const char *dev_name)
+{
+	struct pp2_bpool_params bpool_params;
+	char match[MRVL_MATCH_LEN];
+	struct mrvl_priv *priv;
+	int ret, bpool_bit;
+
+	priv = rte_zmalloc_socket(dev_name, sizeof(*priv), 0, rte_socket_id());
+	if (!priv)
+		return NULL;
+
+	ret = pp2_netdev_get_ppio_info((char *)(uintptr_t)dev_name,
+				       &priv->pp_id, &priv->ppio_id);
+	if (ret)
+		goto out_free_priv;
+
+	bpool_bit = mrvl_reserve_bit(&used_bpools[priv->pp_id],
+				     PP2_BPOOL_NUM_POOLS);
+	if (bpool_bit < 0)
+		goto out_free_priv;
+	priv->bpool_bit = bpool_bit;
+
+	snprintf(match, sizeof(match), "pool-%d:%d", priv->pp_id,
+		 priv->bpool_bit);
+	memset(&bpool_params, 0, sizeof(bpool_params));
+	bpool_params.match = match;
+	bpool_params.buff_len = MRVL_PKT_SIZE_MAX + MRVL_PKT_EFFEC_OFFS;
+	ret = pp2_bpool_init(&bpool_params, &priv->bpool);
+	if (ret)
+		goto out_clear_bpool_bit;
+
+	priv->ppio_params.type = PP2_PPIO_T_NIC;
+	rte_spinlock_init(&priv->lock);
+
+	return priv;
+out_clear_bpool_bit:
+	used_bpools[priv->pp_id] &= ~(1 << priv->bpool_bit);
+out_free_priv:
+	rte_free(priv);
+	return NULL;
+}
+
+/**
+ * Create device representing Ethernet port.
+ *
+ * @param name
+ *   Pointer to the port's name.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+mrvl_eth_dev_create(struct rte_vdev_device *vdev, const char *name)
+{
+	int ret, fd = socket(AF_INET, SOCK_DGRAM, 0);
+	struct rte_eth_dev *eth_dev;
+	struct mrvl_priv *priv;
+	struct ifreq req;
+
+	eth_dev = rte_eth_dev_allocate(name);
+	if (!eth_dev)
+		return -ENOMEM;
+
+	priv = mrvl_priv_create(name);
+	if (!priv) {
+		ret = -ENOMEM;
+		goto out_free_dev;
+	}
+
+	eth_dev->data->mac_addrs =
+		rte_zmalloc("mac_addrs",
+			    ETHER_ADDR_LEN * MRVL_MAC_ADDRS_MAX, 0);
+	if (!eth_dev->data->mac_addrs) {
+		MRVL_LOG(ERR, "Failed to allocate space for eth addrs");
+		ret = -ENOMEM;
+		goto out_free_priv;
+	}
+
+	memset(&req, 0, sizeof(req));
+	strcpy(req.ifr_name, name);
+	ret = ioctl(fd, SIOCGIFHWADDR, &req);
+	if (ret)
+		goto out_free_mac;
+
+	memcpy(eth_dev->data->mac_addrs[0].addr_bytes,
+	       req.ifr_addr.sa_data, ETHER_ADDR_LEN);
+
+	eth_dev->rx_pkt_burst = mrvl_rx_pkt_burst;
+	eth_dev->tx_pkt_burst = mrvl_tx_pkt_burst;
+	eth_dev->data->kdrv = RTE_KDRV_NONE;
+	eth_dev->data->dev_private = priv;
+	eth_dev->device = &vdev->device;
+	eth_dev->dev_ops = &mrvl_ops;
+
+	rte_eth_dev_probing_finish(eth_dev);
+	return 0;
+out_free_mac:
+	rte_free(eth_dev->data->mac_addrs);
+out_free_dev:
+	rte_eth_dev_release_port(eth_dev);
+out_free_priv:
+	rte_free(priv);
+
+	return ret;
+}
+
+/**
+ * Cleanup previously created device representing Ethernet port.
+ *
+ * @param name
+ *   Pointer to the port name.
+ */
+static void
+mrvl_eth_dev_destroy(const char *name)
+{
+	struct rte_eth_dev *eth_dev;
+	struct mrvl_priv *priv;
+
+	eth_dev = rte_eth_dev_allocated(name);
+	if (!eth_dev)
+		return;
+
+	priv = eth_dev->data->dev_private;
+	pp2_bpool_deinit(priv->bpool);
+	used_bpools[priv->pp_id] &= ~(1 << priv->bpool_bit);
+	rte_free(priv);
+	rte_free(eth_dev->data->mac_addrs);
+	rte_eth_dev_release_port(eth_dev);
+}
+
+/**
+ * Callback used by rte_kvargs_process() during argument parsing.
+ *
+ * @param key
+ *   Pointer to the parsed key (unused).
+ * @param value
+ *   Pointer to the parsed value.
+ * @param extra_args
+ *   Pointer to the extra arguments which contains address of the
+ *   table of pointers to parsed interface names.
+ *
+ * @return
+ *   Always 0.
+ */
+static int
+mrvl_get_ifnames(const char *key __rte_unused, const char *value,
+		 void *extra_args)
+{
+	struct mrvl_ifnames *ifnames = extra_args;
+
+	ifnames->names[ifnames->idx++] = value;
+
+	return 0;
+}
+
+/**
+ * Deinitialize per-lcore MUSDK hardware interfaces (hifs).
+ */
+static void
+mrvl_deinit_hifs(void)
+{
+	int i;
+
+	for (i = mrvl_lcore_first; i <= mrvl_lcore_last; i++) {
+		if (hifs[i])
+			pp2_hif_deinit(hifs[i]);
+	}
+	used_hifs = MRVL_MUSDK_HIFS_RESERVED;
+	memset(hifs, 0, sizeof(hifs));
+}
+
+/**
+ * DPDK callback to register the virtual device.
+ *
+ * @param vdev
+ *   Pointer to the virtual device.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+rte_pmd_mrvl_probe(struct rte_vdev_device *vdev)
+{
+	struct rte_kvargs *kvlist;
+	struct mrvl_ifnames ifnames;
+	int ret = -EINVAL;
+	uint32_t i, ifnum, cfgnum;
+	const char *params;
+
+	params = rte_vdev_device_args(vdev);
+	if (!params)
+		return -EINVAL;
+
+	kvlist = rte_kvargs_parse(params, valid_args);
+	if (!kvlist)
+		return -EINVAL;
+
+	ifnum = rte_kvargs_count(kvlist, MRVL_IFACE_NAME_ARG);
+	if (ifnum > RTE_DIM(ifnames.names))
+		goto out_free_kvlist;
+
+	ifnames.idx = 0;
+	rte_kvargs_process(kvlist, MRVL_IFACE_NAME_ARG,
+			   mrvl_get_ifnames, &ifnames);
+
+
+	/*
+	 * The below system initialization should be done only once,
+	 * on the first provided configuration file
+	 */
+	if (!mrvl_qos_cfg) {
+		cfgnum = rte_kvargs_count(kvlist, MRVL_CFG_ARG);
+		MRVL_LOG(INFO, "Parsing config file!");
+		if (cfgnum > 1) {
+			MRVL_LOG(ERR, "Cannot handle more than one config file!");
+			goto out_free_kvlist;
+		} else if (cfgnum == 1) {
+			rte_kvargs_process(kvlist, MRVL_CFG_ARG,
+					   mrvl_get_qoscfg, &mrvl_qos_cfg);
+		}
+	}
+
+	if (mrvl_dev_num)
+		goto init_devices;
+
+	MRVL_LOG(INFO, "Perform MUSDK initializations");
+	/*
+	 * ret == -EEXIST is correct, it means DMA
+	 * has been already initialized (by another PMD).
+	 */
+	ret = mv_sys_dma_mem_init(MRVL_MUSDK_DMA_MEMSIZE);
+	if (ret < 0) {
+		if (ret != -EEXIST)
+			goto out_free_kvlist;
+		else
+			MRVL_LOG(INFO,
+				"DMA memory has been already initialized by a different driver.");
+	}
+
+	ret = mrvl_init_pp2();
+	if (ret) {
+		MRVL_LOG(ERR, "Failed to init PP!");
+		goto out_deinit_dma;
+	}
+
+	memset(mrvl_port_bpool_size, 0, sizeof(mrvl_port_bpool_size));
+	memset(mrvl_port_to_bpool_lookup, 0, sizeof(mrvl_port_to_bpool_lookup));
+
+	mrvl_lcore_first = RTE_MAX_LCORE;
+	mrvl_lcore_last = 0;
+
+init_devices:
+	for (i = 0; i < ifnum; i++) {
+		MRVL_LOG(INFO, "Creating %s", ifnames.names[i]);
+		ret = mrvl_eth_dev_create(vdev, ifnames.names[i]);
+		if (ret)
+			goto out_cleanup;
+	}
+	mrvl_dev_num += ifnum;
+
+	rte_kvargs_free(kvlist);
+
+	return 0;
+out_cleanup:
+	for (; i > 0; i--)
+		mrvl_eth_dev_destroy(ifnames.names[i]);
+
+	if (mrvl_dev_num == 0)
+		mrvl_deinit_pp2();
+out_deinit_dma:
+	if (mrvl_dev_num == 0)
+		mv_sys_dma_mem_destroy();
+out_free_kvlist:
+	rte_kvargs_free(kvlist);
+
+	return ret;
+}
+
+/**
+ * DPDK callback to remove virtual device.
+ *
+ * @param vdev
+ *   Pointer to the removed virtual device.
+ *
+ * @return
+ *   0 on success, negative error value otherwise.
+ */
+static int
+rte_pmd_mrvl_remove(struct rte_vdev_device *vdev)
+{
+	int i;
+	const char *name;
+
+	name = rte_vdev_device_name(vdev);
+	if (!name)
+		return -EINVAL;
+
+	MRVL_LOG(INFO, "Removing %s", name);
+
+	RTE_ETH_FOREACH_DEV(i) { /* FIXME: removing all devices! */
+		char ifname[RTE_ETH_NAME_MAX_LEN];
+
+		rte_eth_dev_get_name_by_port(i, ifname);
+		mrvl_eth_dev_destroy(ifname);
+		mrvl_dev_num--;
+	}
+
+	if (mrvl_dev_num == 0) {
+		MRVL_LOG(INFO, "Perform MUSDK deinit");
+		mrvl_deinit_hifs();
+		mrvl_deinit_pp2();
+		mv_sys_dma_mem_destroy();
+	}
+
+	return 0;
+}
+
+static struct rte_vdev_driver pmd_mrvl_drv = {
+	.probe = rte_pmd_mrvl_probe,
+	.remove = rte_pmd_mrvl_remove,
+};
+
+RTE_PMD_REGISTER_VDEV(net_mvpp2, pmd_mrvl_drv);
+RTE_PMD_REGISTER_ALIAS(net_mvpp2, eth_mvpp2);
+
+RTE_INIT(mrvl_init_log)
+{
+	mrvl_logtype = rte_log_register("pmd.net.mvpp2");
+	if (mrvl_logtype >= 0)
+		rte_log_set_level(mrvl_logtype, RTE_LOG_NOTICE);
+}