Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

6 files changed, 2085 insertions, 0 deletions

diff --git a/src/spdk/dpdk/drivers/net/szedata2/Makefile b/src/spdk/dpdk/drivers/net/szedata2/Makefile
new file mode 100644
index 00000000..b77fae16
--- /dev/null
+++ b/src/spdk/dpdk/drivers/net/szedata2/Makefile
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2015 CESNET
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_pmd_szedata2.a
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+LDLIBS += -lsze2
+LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
+LDLIBS += -lrte_ethdev -lrte_net -lrte_kvargs
+LDLIBS += -lrte_bus_pci
+
+EXPORT_MAP := rte_pmd_szedata2_version.map
+
+LIBABIVER := 1
+
+#
+# all source are stored in SRCS-y
+#
+SRCS-$(CONFIG_RTE_LIBRTE_PMD_SZEDATA2) += rte_eth_szedata2.c
+
+#
+# Export include files
+#
+SYMLINK-y-include +=
+
+include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/src/spdk/dpdk/drivers/net/szedata2/meson.build b/src/spdk/dpdk/drivers/net/szedata2/meson.build
new file mode 100644
index 00000000..da373374
--- /dev/null
+++ b/src/spdk/dpdk/drivers/net/szedata2/meson.build
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Intel Corporation
+
+dep = cc.find_library('sze2', required: false)
+build = dep.found()
+ext_deps += dep
+sources = files('rte_eth_szedata2.c')
diff --git a/src/spdk/dpdk/drivers/net/szedata2/rte_eth_szedata2.c b/src/spdk/dpdk/drivers/net/szedata2/rte_eth_szedata2.c
new file mode 100644
index 00000000..1d20cb51
--- /dev/null
+++ b/src/spdk/dpdk/drivers/net/szedata2/rte_eth_szedata2.c
@@ -0,0 +1,1934 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2015 - 2016 CESNET
+ */
+
+#include <stdint.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <err.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#include <libsze2.h>
+
+#include <rte_mbuf.h>
+#include <rte_ethdev_driver.h>
+#include <rte_ethdev_pci.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_kvargs.h>
+#include <rte_dev.h>
+
+#include "rte_eth_szedata2.h"
+#include "szedata2_logs.h"
+
+#define RTE_ETH_SZEDATA2_MAX_RX_QUEUES 32
+#define RTE_ETH_SZEDATA2_MAX_TX_QUEUES 32
+#define RTE_ETH_SZEDATA2_TX_LOCK_SIZE (32 * 1024 * 1024)
+
+/**
+ * size of szedata2_packet header with alignment
+ */
+#define RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED 8
+
+#define RTE_SZEDATA2_DRIVER_NAME net_szedata2
+
+#define SZEDATA2_DEV_PATH_FMT "/dev/szedataII%u"
+
+/**
+ * Format string for suffix used to differentiate between Ethernet ports
+ * on the same PCI device.
+ */
+#define SZEDATA2_ETH_DEV_NAME_SUFFIX_FMT "-port%u"
+
+/**
+ * Maximum number of ports for one device.
+ */
+#define SZEDATA2_MAX_PORTS 2
+
+/**
+ * Entry in list of PCI devices for this driver.
+ */
+struct pci_dev_list_entry;
+struct pci_dev_list_entry {
+	LIST_ENTRY(pci_dev_list_entry) next;
+	struct rte_pci_device *pci_dev;
+	unsigned int port_count;
+};
+
+/* List of PCI devices with number of ports for this driver. */
+LIST_HEAD(pci_dev_list, pci_dev_list_entry) szedata2_pci_dev_list =
+	LIST_HEAD_INITIALIZER(szedata2_pci_dev_list);
+
+struct port_info {
+	unsigned int rx_base_id;
+	unsigned int tx_base_id;
+	unsigned int rx_count;
+	unsigned int tx_count;
+	int numa_node;
+};
+
+struct pmd_internals {
+	struct rte_eth_dev *dev;
+	uint16_t max_rx_queues;
+	uint16_t max_tx_queues;
+	unsigned int rxq_base_id;
+	unsigned int txq_base_id;
+	char *sze_dev_path;
+};
+
+struct szedata2_rx_queue {
+	struct pmd_internals *priv;
+	struct szedata *sze;
+	uint8_t rx_channel;
+	uint16_t qid;
+	uint16_t in_port;
+	struct rte_mempool *mb_pool;
+	volatile uint64_t rx_pkts;
+	volatile uint64_t rx_bytes;
+	volatile uint64_t err_pkts;
+};
+
+struct szedata2_tx_queue {
+	struct pmd_internals *priv;
+	struct szedata *sze;
+	uint8_t tx_channel;
+	uint16_t qid;
+	volatile uint64_t tx_pkts;
+	volatile uint64_t tx_bytes;
+	volatile uint64_t err_pkts;
+};
+
+int szedata2_logtype_init;
+int szedata2_logtype_driver;
+
+static struct ether_addr eth_addr = {
+	.addr_bytes = { 0x00, 0x11, 0x17, 0x00, 0x00, 0x00 }
+};
+
+static uint16_t
+eth_szedata2_rx(void *queue,
+		struct rte_mbuf **bufs,
+		uint16_t nb_pkts)
+{
+	unsigned int i;
+	struct rte_mbuf *mbuf;
+	struct szedata2_rx_queue *sze_q = queue;
+	struct rte_pktmbuf_pool_private *mbp_priv;
+	uint16_t num_rx = 0;
+	uint16_t buf_size;
+	uint16_t sg_size;
+	uint16_t hw_size;
+	uint16_t packet_size;
+	uint64_t num_bytes = 0;
+	struct szedata *sze = sze_q->sze;
+	uint8_t *header_ptr = NULL; /* header of packet */
+	uint8_t *packet_ptr1 = NULL;
+	uint8_t *packet_ptr2 = NULL;
+	uint16_t packet_len1 = 0;
+	uint16_t packet_len2 = 0;
+	uint16_t hw_data_align;
+
+	if (unlikely(sze_q->sze == NULL || nb_pkts == 0))
+		return 0;
+
+	/*
+	 * Reads the given number of packets from szedata2 channel given
+	 * by queue and copies the packet data into a newly allocated mbuf
+	 * to return.
+	 */
+	for (i = 0; i < nb_pkts; i++) {
+		mbuf = rte_pktmbuf_alloc(sze_q->mb_pool);
+
+		if (unlikely(mbuf == NULL)) {
+			sze_q->priv->dev->data->rx_mbuf_alloc_failed++;
+			break;
+		}
+
+		/* get the next sze packet */
+		if (sze->ct_rx_lck != NULL && !sze->ct_rx_rem_bytes &&
+				sze->ct_rx_lck->next == NULL) {
+			/* unlock old data */
+			szedata_rx_unlock_data(sze_q->sze, sze->ct_rx_lck_orig);
+			sze->ct_rx_lck_orig = NULL;
+			sze->ct_rx_lck = NULL;
+		}
+
+		if (!sze->ct_rx_rem_bytes && sze->ct_rx_lck_orig == NULL) {
+			/* nothing to read, lock new data */
+			sze->ct_rx_lck = szedata_rx_lock_data(sze_q->sze, ~0U);
+			sze->ct_rx_lck_orig = sze->ct_rx_lck;
+
+			if (sze->ct_rx_lck == NULL) {
+				/* nothing to lock */
+				rte_pktmbuf_free(mbuf);
+				break;
+			}
+
+			sze->ct_rx_cur_ptr = sze->ct_rx_lck->start;
+			sze->ct_rx_rem_bytes = sze->ct_rx_lck->len;
+
+			if (!sze->ct_rx_rem_bytes) {
+				rte_pktmbuf_free(mbuf);
+				break;
+			}
+		}
+
+		if (sze->ct_rx_rem_bytes < RTE_SZE2_PACKET_HEADER_SIZE) {
+			/*
+			 * cut in header
+			 * copy parts of header to merge buffer
+			 */
+			if (sze->ct_rx_lck->next == NULL) {
+				rte_pktmbuf_free(mbuf);
+				break;
+			}
+
+			/* copy first part of header */
+			rte_memcpy(sze->ct_rx_buffer, sze->ct_rx_cur_ptr,
+					sze->ct_rx_rem_bytes);
+
+			/* copy second part of header */
+			sze->ct_rx_lck = sze->ct_rx_lck->next;
+			sze->ct_rx_cur_ptr = sze->ct_rx_lck->start;
+			rte_memcpy(sze->ct_rx_buffer + sze->ct_rx_rem_bytes,
+				sze->ct_rx_cur_ptr,
+				RTE_SZE2_PACKET_HEADER_SIZE -
+				sze->ct_rx_rem_bytes);
+
+			sze->ct_rx_cur_ptr += RTE_SZE2_PACKET_HEADER_SIZE -
+				sze->ct_rx_rem_bytes;
+			sze->ct_rx_rem_bytes = sze->ct_rx_lck->len -
+				RTE_SZE2_PACKET_HEADER_SIZE +
+				sze->ct_rx_rem_bytes;
+
+			header_ptr = (uint8_t *)sze->ct_rx_buffer;
+		} else {
+			/* not cut */
+			header_ptr = (uint8_t *)sze->ct_rx_cur_ptr;
+			sze->ct_rx_cur_ptr += RTE_SZE2_PACKET_HEADER_SIZE;
+			sze->ct_rx_rem_bytes -= RTE_SZE2_PACKET_HEADER_SIZE;
+		}
+
+		sg_size = le16toh(*((uint16_t *)header_ptr));
+		hw_size = le16toh(*(((uint16_t *)header_ptr) + 1));
+		packet_size = sg_size -
+			RTE_SZE2_ALIGN8(RTE_SZE2_PACKET_HEADER_SIZE + hw_size);
+
+
+		/* checks if packet all right */
+		if (!sg_size)
+			errx(5, "Zero segsize");
+
+		/* check sg_size and hwsize */
+		if (hw_size > sg_size - RTE_SZE2_PACKET_HEADER_SIZE) {
+			errx(10, "Hwsize bigger than expected. Segsize: %d, "
+				"hwsize: %d", sg_size, hw_size);
+		}
+
+		hw_data_align =
+			RTE_SZE2_ALIGN8(RTE_SZE2_PACKET_HEADER_SIZE + hw_size) -
+			RTE_SZE2_PACKET_HEADER_SIZE;
+
+		if (sze->ct_rx_rem_bytes >=
+				(uint16_t)(sg_size -
+				RTE_SZE2_PACKET_HEADER_SIZE)) {
+			/* no cut */
+			/* one packet ready - go to another */
+			packet_ptr1 = sze->ct_rx_cur_ptr + hw_data_align;
+			packet_len1 = packet_size;
+			packet_ptr2 = NULL;
+			packet_len2 = 0;
+
+			sze->ct_rx_cur_ptr += RTE_SZE2_ALIGN8(sg_size) -
+				RTE_SZE2_PACKET_HEADER_SIZE;
+			sze->ct_rx_rem_bytes -= RTE_SZE2_ALIGN8(sg_size) -
+				RTE_SZE2_PACKET_HEADER_SIZE;
+		} else {
+			/* cut in data */
+			if (sze->ct_rx_lck->next == NULL) {
+				errx(6, "Need \"next\" lock, "
+					"but it is missing: %u",
+					sze->ct_rx_rem_bytes);
+			}
+
+			/* skip hw data */
+			if (sze->ct_rx_rem_bytes <= hw_data_align) {
+				uint16_t rem_size = hw_data_align -
+					sze->ct_rx_rem_bytes;
+
+				/* MOVE to next lock */
+				sze->ct_rx_lck = sze->ct_rx_lck->next;
+				sze->ct_rx_cur_ptr =
+					(void *)(((uint8_t *)
+					(sze->ct_rx_lck->start)) + rem_size);
+
+				packet_ptr1 = sze->ct_rx_cur_ptr;
+				packet_len1 = packet_size;
+				packet_ptr2 = NULL;
+				packet_len2 = 0;
+
+				sze->ct_rx_cur_ptr +=
+					RTE_SZE2_ALIGN8(packet_size);
+				sze->ct_rx_rem_bytes = sze->ct_rx_lck->len -
+					rem_size - RTE_SZE2_ALIGN8(packet_size);
+			} else {
+				/* get pointer and length from first part */
+				packet_ptr1 = sze->ct_rx_cur_ptr +
+					hw_data_align;
+				packet_len1 = sze->ct_rx_rem_bytes -
+					hw_data_align;
+
+				/* MOVE to next lock */
+				sze->ct_rx_lck = sze->ct_rx_lck->next;
+				sze->ct_rx_cur_ptr = sze->ct_rx_lck->start;
+
+				/* get pointer and length from second part */
+				packet_ptr2 = sze->ct_rx_cur_ptr;
+				packet_len2 = packet_size - packet_len1;
+
+				sze->ct_rx_cur_ptr +=
+					RTE_SZE2_ALIGN8(packet_size) -
+					packet_len1;
+				sze->ct_rx_rem_bytes = sze->ct_rx_lck->len -
+					(RTE_SZE2_ALIGN8(packet_size) -
+					 packet_len1);
+			}
+		}
+
+		if (unlikely(packet_ptr1 == NULL)) {
+			rte_pktmbuf_free(mbuf);
+			break;
+		}
+
+		/* get the space available for data in the mbuf */
+		mbp_priv = rte_mempool_get_priv(sze_q->mb_pool);
+		buf_size = (uint16_t)(mbp_priv->mbuf_data_room_size -
+				RTE_PKTMBUF_HEADROOM);
+
+		if (packet_size <= buf_size) {
+			/* sze packet will fit in one mbuf, go ahead and copy */
+			rte_memcpy(rte_pktmbuf_mtod(mbuf, void *),
+					packet_ptr1, packet_len1);
+			if (packet_ptr2 != NULL) {
+				rte_memcpy((void *)(rte_pktmbuf_mtod(mbuf,
+					uint8_t *) + packet_len1),
+					packet_ptr2, packet_len2);
+			}
+			mbuf->data_len = (uint16_t)packet_size;
+
+			mbuf->pkt_len = packet_size;
+			mbuf->port = sze_q->in_port;
+			bufs[num_rx] = mbuf;
+			num_rx++;
+			num_bytes += packet_size;
+		} else {
+			/*
+			 * sze packet will not fit in one mbuf,
+			 * scattered mode is not enabled, drop packet
+			 */
+			PMD_DRV_LOG(ERR,
+				"SZE segment %d bytes will not fit in one mbuf "
+				"(%d bytes), scattered mode is not enabled, "
+				"drop packet!!",
+				packet_size, buf_size);
+			rte_pktmbuf_free(mbuf);
+		}
+	}
+
+	sze_q->rx_pkts += num_rx;
+	sze_q->rx_bytes += num_bytes;
+	return num_rx;
+}
+
+static uint16_t
+eth_szedata2_rx_scattered(void *queue,
+		struct rte_mbuf **bufs,
+		uint16_t nb_pkts)
+{
+	unsigned int i;
+	struct rte_mbuf *mbuf;
+	struct szedata2_rx_queue *sze_q = queue;
+	struct rte_pktmbuf_pool_private *mbp_priv;
+	uint16_t num_rx = 0;
+	uint16_t buf_size;
+	uint16_t sg_size;
+	uint16_t hw_size;
+	uint16_t packet_size;
+	uint64_t num_bytes = 0;
+	struct szedata *sze = sze_q->sze;
+	uint8_t *header_ptr = NULL; /* header of packet */
+	uint8_t *packet_ptr1 = NULL;
+	uint8_t *packet_ptr2 = NULL;
+	uint16_t packet_len1 = 0;
+	uint16_t packet_len2 = 0;
+	uint16_t hw_data_align;
+	uint64_t *mbuf_failed_ptr =
+		&sze_q->priv->dev->data->rx_mbuf_alloc_failed;
+
+	if (unlikely(sze_q->sze == NULL || nb_pkts == 0))
+		return 0;
+
+	/*
+	 * Reads the given number of packets from szedata2 channel given
+	 * by queue and copies the packet data into a newly allocated mbuf
+	 * to return.
+	 */
+	for (i = 0; i < nb_pkts; i++) {
+		const struct szedata_lock *ct_rx_lck_backup;
+		unsigned int ct_rx_rem_bytes_backup;
+		unsigned char *ct_rx_cur_ptr_backup;
+
+		/* get the next sze packet */
+		if (sze->ct_rx_lck != NULL && !sze->ct_rx_rem_bytes &&
+				sze->ct_rx_lck->next == NULL) {
+			/* unlock old data */
+			szedata_rx_unlock_data(sze_q->sze, sze->ct_rx_lck_orig);
+			sze->ct_rx_lck_orig = NULL;
+			sze->ct_rx_lck = NULL;
+		}
+
+		/*
+		 * Store items from sze structure which can be changed
+		 * before mbuf allocating. Use these items in case of mbuf
+		 * allocating failure.
+		 */
+		ct_rx_lck_backup = sze->ct_rx_lck;
+		ct_rx_rem_bytes_backup = sze->ct_rx_rem_bytes;
+		ct_rx_cur_ptr_backup = sze->ct_rx_cur_ptr;
+
+		if (!sze->ct_rx_rem_bytes && sze->ct_rx_lck_orig == NULL) {
+			/* nothing to read, lock new data */
+			sze->ct_rx_lck = szedata_rx_lock_data(sze_q->sze, ~0U);
+			sze->ct_rx_lck_orig = sze->ct_rx_lck;
+
+			/*
+			 * Backup items from sze structure must be updated
+			 * after locking to contain pointers to new locks.
+			 */
+			ct_rx_lck_backup = sze->ct_rx_lck;
+			ct_rx_rem_bytes_backup = sze->ct_rx_rem_bytes;
+			ct_rx_cur_ptr_backup = sze->ct_rx_cur_ptr;
+
+			if (sze->ct_rx_lck == NULL)
+				/* nothing to lock */
+				break;
+
+			sze->ct_rx_cur_ptr = sze->ct_rx_lck->start;
+			sze->ct_rx_rem_bytes = sze->ct_rx_lck->len;
+
+			if (!sze->ct_rx_rem_bytes)
+				break;
+		}
+
+		if (sze->ct_rx_rem_bytes < RTE_SZE2_PACKET_HEADER_SIZE) {
+			/*
+			 * cut in header - copy parts of header to merge buffer
+			 */
+			if (sze->ct_rx_lck->next == NULL)
+				break;
+
+			/* copy first part of header */
+			rte_memcpy(sze->ct_rx_buffer, sze->ct_rx_cur_ptr,
+					sze->ct_rx_rem_bytes);
+
+			/* copy second part of header */
+			sze->ct_rx_lck = sze->ct_rx_lck->next;
+			sze->ct_rx_cur_ptr = sze->ct_rx_lck->start;
+			rte_memcpy(sze->ct_rx_buffer + sze->ct_rx_rem_bytes,
+				sze->ct_rx_cur_ptr,
+				RTE_SZE2_PACKET_HEADER_SIZE -
+				sze->ct_rx_rem_bytes);
+
+			sze->ct_rx_cur_ptr += RTE_SZE2_PACKET_HEADER_SIZE -
+				sze->ct_rx_rem_bytes;
+			sze->ct_rx_rem_bytes = sze->ct_rx_lck->len -
+				RTE_SZE2_PACKET_HEADER_SIZE +
+				sze->ct_rx_rem_bytes;
+
+			header_ptr = (uint8_t *)sze->ct_rx_buffer;
+		} else {
+			/* not cut */
+			header_ptr = (uint8_t *)sze->ct_rx_cur_ptr;
+			sze->ct_rx_cur_ptr += RTE_SZE2_PACKET_HEADER_SIZE;
+			sze->ct_rx_rem_bytes -= RTE_SZE2_PACKET_HEADER_SIZE;
+		}
+
+		sg_size = le16toh(*((uint16_t *)header_ptr));
+		hw_size = le16toh(*(((uint16_t *)header_ptr) + 1));
+		packet_size = sg_size -
+			RTE_SZE2_ALIGN8(RTE_SZE2_PACKET_HEADER_SIZE + hw_size);
+
+
+		/* checks if packet all right */
+		if (!sg_size)
+			errx(5, "Zero segsize");
+
+		/* check sg_size and hwsize */
+		if (hw_size > sg_size - RTE_SZE2_PACKET_HEADER_SIZE) {
+			errx(10, "Hwsize bigger than expected. Segsize: %d, "
+					"hwsize: %d", sg_size, hw_size);
+		}
+
+		hw_data_align =
+			RTE_SZE2_ALIGN8((RTE_SZE2_PACKET_HEADER_SIZE +
+			hw_size)) - RTE_SZE2_PACKET_HEADER_SIZE;
+
+		if (sze->ct_rx_rem_bytes >=
+				(uint16_t)(sg_size -
+				RTE_SZE2_PACKET_HEADER_SIZE)) {
+			/* no cut */
+			/* one packet ready - go to another */
+			packet_ptr1 = sze->ct_rx_cur_ptr + hw_data_align;
+			packet_len1 = packet_size;
+			packet_ptr2 = NULL;
+			packet_len2 = 0;
+
+			sze->ct_rx_cur_ptr += RTE_SZE2_ALIGN8(sg_size) -
+				RTE_SZE2_PACKET_HEADER_SIZE;
+			sze->ct_rx_rem_bytes -= RTE_SZE2_ALIGN8(sg_size) -
+				RTE_SZE2_PACKET_HEADER_SIZE;
+		} else {
+			/* cut in data */
+			if (sze->ct_rx_lck->next == NULL) {
+				errx(6, "Need \"next\" lock, but it is "
+					"missing: %u", sze->ct_rx_rem_bytes);
+			}
+
+			/* skip hw data */
+			if (sze->ct_rx_rem_bytes <= hw_data_align) {
+				uint16_t rem_size = hw_data_align -
+					sze->ct_rx_rem_bytes;
+
+				/* MOVE to next lock */
+				sze->ct_rx_lck = sze->ct_rx_lck->next;
+				sze->ct_rx_cur_ptr =
+					(void *)(((uint8_t *)
+					(sze->ct_rx_lck->start)) + rem_size);
+
+				packet_ptr1 = sze->ct_rx_cur_ptr;
+				packet_len1 = packet_size;
+				packet_ptr2 = NULL;
+				packet_len2 = 0;
+
+				sze->ct_rx_cur_ptr +=
+					RTE_SZE2_ALIGN8(packet_size);
+				sze->ct_rx_rem_bytes = sze->ct_rx_lck->len -
+					rem_size - RTE_SZE2_ALIGN8(packet_size);
+			} else {
+				/* get pointer and length from first part */
+				packet_ptr1 = sze->ct_rx_cur_ptr +
+					hw_data_align;
+				packet_len1 = sze->ct_rx_rem_bytes -
+					hw_data_align;
+
+				/* MOVE to next lock */
+				sze->ct_rx_lck = sze->ct_rx_lck->next;
+				sze->ct_rx_cur_ptr = sze->ct_rx_lck->start;
+
+				/* get pointer and length from second part */
+				packet_ptr2 = sze->ct_rx_cur_ptr;
+				packet_len2 = packet_size - packet_len1;
+
+				sze->ct_rx_cur_ptr +=
+					RTE_SZE2_ALIGN8(packet_size) -
+					packet_len1;
+				sze->ct_rx_rem_bytes = sze->ct_rx_lck->len -
+					(RTE_SZE2_ALIGN8(packet_size) -
+					 packet_len1);
+			}
+		}
+
+		if (unlikely(packet_ptr1 == NULL))
+			break;
+
+		mbuf = rte_pktmbuf_alloc(sze_q->mb_pool);
+
+		if (unlikely(mbuf == NULL)) {
+			/*
+			 * Restore items from sze structure to state after
+			 * unlocking (eventually locking).
+			 */
+			sze->ct_rx_lck = ct_rx_lck_backup;
+			sze->ct_rx_rem_bytes = ct_rx_rem_bytes_backup;
+			sze->ct_rx_cur_ptr = ct_rx_cur_ptr_backup;
+			sze_q->priv->dev->data->rx_mbuf_alloc_failed++;
+			break;
+		}
+
+		/* get the space available for data in the mbuf */
+		mbp_priv = rte_mempool_get_priv(sze_q->mb_pool);
+		buf_size = (uint16_t)(mbp_priv->mbuf_data_room_size -
+				RTE_PKTMBUF_HEADROOM);
+
+		if (packet_size <= buf_size) {
+			/* sze packet will fit in one mbuf, go ahead and copy */
+			rte_memcpy(rte_pktmbuf_mtod(mbuf, void *),
+					packet_ptr1, packet_len1);
+			if (packet_ptr2 != NULL) {
+				rte_memcpy((void *)
+					(rte_pktmbuf_mtod(mbuf, uint8_t *) +
+					packet_len1), packet_ptr2, packet_len2);
+			}
+			mbuf->data_len = (uint16_t)packet_size;
+		} else {
+			/*
+			 * sze packet will not fit in one mbuf,
+			 * scatter packet into more mbufs
+			 */
+			struct rte_mbuf *m = mbuf;
+			uint16_t len = rte_pktmbuf_tailroom(mbuf);
+
+			/* copy first part of packet */
+			/* fill first mbuf */
+			rte_memcpy(rte_pktmbuf_append(mbuf, len), packet_ptr1,
+				len);
+			packet_len1 -= len;
+			packet_ptr1 = ((uint8_t *)packet_ptr1) + len;
+
+			while (packet_len1 > 0) {
+				/* fill new mbufs */
+				m->next = rte_pktmbuf_alloc(sze_q->mb_pool);
+
+				if (unlikely(m->next == NULL)) {
+					rte_pktmbuf_free(mbuf);
+					/*
+					 * Restore items from sze structure
+					 * to state after unlocking (eventually
+					 * locking).
+					 */
+					sze->ct_rx_lck = ct_rx_lck_backup;
+					sze->ct_rx_rem_bytes =
+						ct_rx_rem_bytes_backup;
+					sze->ct_rx_cur_ptr =
+						ct_rx_cur_ptr_backup;
+					(*mbuf_failed_ptr)++;
+					goto finish;
+				}
+
+				m = m->next;
+
+				len = RTE_MIN(rte_pktmbuf_tailroom(m),
+					packet_len1);
+				rte_memcpy(rte_pktmbuf_append(mbuf, len),
+					packet_ptr1, len);
+
+				(mbuf->nb_segs)++;
+				packet_len1 -= len;
+				packet_ptr1 = ((uint8_t *)packet_ptr1) + len;
+			}
+
+			if (packet_ptr2 != NULL) {
+				/* copy second part of packet, if exists */
+				/* fill the rest of currently last mbuf */
+				len = rte_pktmbuf_tailroom(m);
+				rte_memcpy(rte_pktmbuf_append(mbuf, len),
+					packet_ptr2, len);
+				packet_len2 -= len;
+				packet_ptr2 = ((uint8_t *)packet_ptr2) + len;
+
+				while (packet_len2 > 0) {
+					/* fill new mbufs */
+					m->next = rte_pktmbuf_alloc(
+							sze_q->mb_pool);
+
+					if (unlikely(m->next == NULL)) {
+						rte_pktmbuf_free(mbuf);
+						/*
+						 * Restore items from sze
+						 * structure to state after
+						 * unlocking (eventually
+						 * locking).
+						 */
+						sze->ct_rx_lck =
+							ct_rx_lck_backup;
+						sze->ct_rx_rem_bytes =
+							ct_rx_rem_bytes_backup;
+						sze->ct_rx_cur_ptr =
+							ct_rx_cur_ptr_backup;
+						(*mbuf_failed_ptr)++;
+						goto finish;
+					}
+
+					m = m->next;
+
+					len = RTE_MIN(rte_pktmbuf_tailroom(m),
+						packet_len2);
+					rte_memcpy(
+						rte_pktmbuf_append(mbuf, len),
+						packet_ptr2, len);
+
+					(mbuf->nb_segs)++;
+					packet_len2 -= len;
+					packet_ptr2 = ((uint8_t *)packet_ptr2) +
+						len;
+				}
+			}
+		}
+		mbuf->pkt_len = packet_size;
+		mbuf->port = sze_q->in_port;
+		bufs[num_rx] = mbuf;
+		num_rx++;
+		num_bytes += packet_size;
+	}
+
+finish:
+	sze_q->rx_pkts += num_rx;
+	sze_q->rx_bytes += num_bytes;
+	return num_rx;
+}
+
+static uint16_t
+eth_szedata2_tx(void *queue,
+		struct rte_mbuf **bufs,
+		uint16_t nb_pkts)
+{
+	struct rte_mbuf *mbuf;
+	struct szedata2_tx_queue *sze_q = queue;
+	uint16_t num_tx = 0;
+	uint64_t num_bytes = 0;
+
+	const struct szedata_lock *lck;
+	uint32_t lock_size;
+	uint32_t lock_size2;
+	void *dst;
+	uint32_t pkt_len;
+	uint32_t hwpkt_len;
+	uint32_t unlock_size;
+	uint32_t rem_len;
+	uint16_t mbuf_segs;
+	uint16_t pkt_left = nb_pkts;
+
+	if (sze_q->sze == NULL || nb_pkts == 0)
+		return 0;
+
+	while (pkt_left > 0) {
+		unlock_size = 0;
+		lck = szedata_tx_lock_data(sze_q->sze,
+			RTE_ETH_SZEDATA2_TX_LOCK_SIZE,
+			sze_q->tx_channel);
+		if (lck == NULL)
+			continue;
+
+		dst = lck->start;
+		lock_size = lck->len;
+		lock_size2 = lck->next ? lck->next->len : 0;
+
+next_packet:
+		mbuf = bufs[nb_pkts - pkt_left];
+
+		pkt_len = mbuf->pkt_len;
+		mbuf_segs = mbuf->nb_segs;
+
+		hwpkt_len = RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED +
+			RTE_SZE2_ALIGN8(pkt_len);
+
+		if (lock_size + lock_size2 < hwpkt_len) {
+			szedata_tx_unlock_data(sze_q->sze, lck, unlock_size);
+			continue;
+		}
+
+		num_bytes += pkt_len;
+
+		if (lock_size > hwpkt_len) {
+			void *tmp_dst;
+
+			rem_len = 0;
+
+			/* write packet length at first 2 bytes in 8B header */
+			*((uint16_t *)dst) = htole16(
+					RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED +
+					pkt_len);
+			*(((uint16_t *)dst) + 1) = htole16(0);
+
+			/* copy packet from mbuf */
+			tmp_dst = ((uint8_t *)(dst)) +
+				RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED;
+			if (mbuf_segs == 1) {
+				/*
+				 * non-scattered packet,
+				 * transmit from one mbuf
+				 */
+				rte_memcpy(tmp_dst,
+					rte_pktmbuf_mtod(mbuf, const void *),
+					pkt_len);
+			} else {
+				/* scattered packet, transmit from more mbufs */
+				struct rte_mbuf *m = mbuf;
+				while (m) {
+					rte_memcpy(tmp_dst,
+						rte_pktmbuf_mtod(m,
+						const void *),
+						m->data_len);
+					tmp_dst = ((uint8_t *)(tmp_dst)) +
+						m->data_len;
+					m = m->next;
+				}
+			}
+
+
+			dst = ((uint8_t *)dst) + hwpkt_len;
+			unlock_size += hwpkt_len;
+			lock_size -= hwpkt_len;
+
+			rte_pktmbuf_free(mbuf);
+			num_tx++;
+			pkt_left--;
+			if (pkt_left == 0) {
+				szedata_tx_unlock_data(sze_q->sze, lck,
+					unlock_size);
+				break;
+			}
+			goto next_packet;
+		} else if (lock_size + lock_size2 >= hwpkt_len) {
+			void *tmp_dst;
+			uint16_t write_len;
+
+			/* write packet length at first 2 bytes in 8B header */
+			*((uint16_t *)dst) =
+				htole16(RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED +
+					pkt_len);
+			*(((uint16_t *)dst) + 1) = htole16(0);
+
+			/*
+			 * If the raw packet (pkt_len) is smaller than lock_size
+			 * get the correct length for memcpy
+			 */
+			write_len =
+				pkt_len < lock_size -
+				RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED ?
+				pkt_len :
+				lock_size - RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED;
+
+			rem_len = hwpkt_len - lock_size;
+
+			tmp_dst = ((uint8_t *)(dst)) +
+				RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED;
+			if (mbuf_segs == 1) {
+				/*
+				 * non-scattered packet,
+				 * transmit from one mbuf
+				 */
+				/* copy part of packet to first area */
+				rte_memcpy(tmp_dst,
+					rte_pktmbuf_mtod(mbuf, const void *),
+					write_len);
+
+				if (lck->next)
+					dst = lck->next->start;
+
+				/* copy part of packet to second area */
+				rte_memcpy(dst,
+					(const void *)(rte_pktmbuf_mtod(mbuf,
+							const uint8_t *) +
+					write_len), pkt_len - write_len);
+			} else {
+				/* scattered packet, transmit from more mbufs */
+				struct rte_mbuf *m = mbuf;
+				uint16_t written = 0;
+				uint16_t to_write = 0;
+				bool new_mbuf = true;
+				uint16_t write_off = 0;
+
+				/* copy part of packet to first area */
+				while (m && written < write_len) {
+					to_write = RTE_MIN(m->data_len,
+							write_len - written);
+					rte_memcpy(tmp_dst,
+						rte_pktmbuf_mtod(m,
+							const void *),
+						to_write);
+
+					tmp_dst = ((uint8_t *)(tmp_dst)) +
+						to_write;
+					if (m->data_len <= write_len -
+							written) {
+						m = m->next;
+						new_mbuf = true;
+					} else {
+						new_mbuf = false;
+					}
+					written += to_write;
+				}
+
+				if (lck->next)
+					dst = lck->next->start;
+
+				tmp_dst = dst;
+				written = 0;
+				write_off = new_mbuf ? 0 : to_write;
+
+				/* copy part of packet to second area */
+				while (m && written < pkt_len - write_len) {
+					rte_memcpy(tmp_dst, (const void *)
+						(rte_pktmbuf_mtod(m,
+						uint8_t *) + write_off),
+						m->data_len - write_off);
+
+					tmp_dst = ((uint8_t *)(tmp_dst)) +
+						(m->data_len - write_off);
+					written += m->data_len - write_off;
+					m = m->next;
+					write_off = 0;
+				}
+			}
+
+			dst = ((uint8_t *)dst) + rem_len;
+			unlock_size += hwpkt_len;
+			lock_size = lock_size2 - rem_len;
+			lock_size2 = 0;
+
+			rte_pktmbuf_free(mbuf);
+			num_tx++;
+		}
+
+		szedata_tx_unlock_data(sze_q->sze, lck, unlock_size);
+		pkt_left--;
+	}
+
+	sze_q->tx_pkts += num_tx;
+	sze_q->err_pkts += nb_pkts - num_tx;
+	sze_q->tx_bytes += num_bytes;
+	return num_tx;
+}
+
+static int
+eth_rx_queue_start(struct rte_eth_dev *dev, uint16_t rxq_id)
+{
+	struct szedata2_rx_queue *rxq = dev->data->rx_queues[rxq_id];
+	int ret;
+	struct pmd_internals *internals = (struct pmd_internals *)
+		dev->data->dev_private;
+
+	if (rxq->sze == NULL) {
+		uint32_t rx = 1 << rxq->rx_channel;
+		uint32_t tx = 0;
+		rxq->sze = szedata_open(internals->sze_dev_path);
+		if (rxq->sze == NULL)
+			return -EINVAL;
+		ret = szedata_subscribe3(rxq->sze, &rx, &tx);
+		if (ret != 0 || rx == 0)
+			goto err;
+	}
+
+	ret = szedata_start(rxq->sze);
+	if (ret != 0)
+		goto err;
+	dev->data->rx_queue_state[rxq_id] = RTE_ETH_QUEUE_STATE_STARTED;
+	return 0;
+
+err:
+	szedata_close(rxq->sze);
+	rxq->sze = NULL;
+	return -EINVAL;
+}
+
+static int
+eth_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rxq_id)
+{
+	struct szedata2_rx_queue *rxq = dev->data->rx_queues[rxq_id];
+
+	if (rxq->sze != NULL) {
+		szedata_close(rxq->sze);
+		rxq->sze = NULL;
+	}
+
+	dev->data->rx_queue_state[rxq_id] = RTE_ETH_QUEUE_STATE_STOPPED;
+	return 0;
+}
+
+static int
+eth_tx_queue_start(struct rte_eth_dev *dev, uint16_t txq_id)
+{
+	struct szedata2_tx_queue *txq = dev->data->tx_queues[txq_id];
+	int ret;
+	struct pmd_internals *internals = (struct pmd_internals *)
+		dev->data->dev_private;
+
+	if (txq->sze == NULL) {
+		uint32_t rx = 0;
+		uint32_t tx = 1 << txq->tx_channel;
+		txq->sze = szedata_open(internals->sze_dev_path);
+		if (txq->sze == NULL)
+			return -EINVAL;
+		ret = szedata_subscribe3(txq->sze, &rx, &tx);
+		if (ret != 0 || tx == 0)
+			goto err;
+	}
+
+	ret = szedata_start(txq->sze);
+	if (ret != 0)
+		goto err;
+	dev->data->tx_queue_state[txq_id] = RTE_ETH_QUEUE_STATE_STARTED;
+	return 0;
+
+err:
+	szedata_close(txq->sze);
+	txq->sze = NULL;
+	return -EINVAL;
+}
+
+static int
+eth_tx_queue_stop(struct rte_eth_dev *dev, uint16_t txq_id)
+{
+	struct szedata2_tx_queue *txq = dev->data->tx_queues[txq_id];
+
+	if (txq->sze != NULL) {
+		szedata_close(txq->sze);
+		txq->sze = NULL;
+	}
+
+	dev->data->tx_queue_state[txq_id] = RTE_ETH_QUEUE_STATE_STOPPED;
+	return 0;
+}
+
+static int
+eth_dev_start(struct rte_eth_dev *dev)
+{
+	int ret;
+	uint16_t i;
+	uint16_t nb_rx = dev->data->nb_rx_queues;
+	uint16_t nb_tx = dev->data->nb_tx_queues;
+
+	for (i = 0; i < nb_rx; i++) {
+		ret = eth_rx_queue_start(dev, i);
+		if (ret != 0)
+			goto err_rx;
+	}
+
+	for (i = 0; i < nb_tx; i++) {
+		ret = eth_tx_queue_start(dev, i);
+		if (ret != 0)
+			goto err_tx;
+	}
+
+	return 0;
+
+err_tx:
+	for (i = 0; i < nb_tx; i++)
+		eth_tx_queue_stop(dev, i);
+err_rx:
+	for (i = 0; i < nb_rx; i++)
+		eth_rx_queue_stop(dev, i);
+	return ret;
+}
+
+static void
+eth_dev_stop(struct rte_eth_dev *dev)
+{
+	uint16_t i;
+	uint16_t nb_rx = dev->data->nb_rx_queues;
+	uint16_t nb_tx = dev->data->nb_tx_queues;
+
+	for (i = 0; i < nb_tx; i++)
+		eth_tx_queue_stop(dev, i);
+
+	for (i = 0; i < nb_rx; i++)
+		eth_rx_queue_stop(dev, i);
+}
+
+static int
+eth_dev_configure(struct rte_eth_dev *dev)
+{
+	struct rte_eth_dev_data *data = dev->data;
+	if (data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_SCATTER) {
+		dev->rx_pkt_burst = eth_szedata2_rx_scattered;
+		data->scattered_rx = 1;
+	} else {
+		dev->rx_pkt_burst = eth_szedata2_rx;
+		data->scattered_rx = 0;
+	}
+	return 0;
+}
+
+static void
+eth_dev_info(struct rte_eth_dev *dev,
+		struct rte_eth_dev_info *dev_info)
+{
+	struct pmd_internals *internals = dev->data->dev_private;
+
+	dev_info->if_index = 0;
+	dev_info->max_mac_addrs = 1;
+	dev_info->max_rx_pktlen = (uint32_t)-1;
+	dev_info->max_rx_queues = internals->max_rx_queues;
+	dev_info->max_tx_queues = internals->max_tx_queues;
+	dev_info->min_rx_bufsize = 0;
+	dev_info->rx_offload_capa = DEV_RX_OFFLOAD_SCATTER |
+				    DEV_RX_OFFLOAD_CRC_STRIP;
+	dev_info->tx_offload_capa = 0;
+	dev_info->rx_queue_offload_capa = 0;
+	dev_info->tx_queue_offload_capa = 0;
+	dev_info->speed_capa = ETH_LINK_SPEED_100G;
+}
+
+static int
+eth_stats_get(struct rte_eth_dev *dev,
+		struct rte_eth_stats *stats)
+{
+	uint16_t i;
+	uint16_t nb_rx = dev->data->nb_rx_queues;
+	uint16_t nb_tx = dev->data->nb_tx_queues;
+	uint64_t rx_total = 0;
+	uint64_t tx_total = 0;
+	uint64_t tx_err_total = 0;
+	uint64_t rx_total_bytes = 0;
+	uint64_t tx_total_bytes = 0;
+
+	for (i = 0; i < nb_rx; i++) {
+		struct szedata2_rx_queue *rxq = dev->data->rx_queues[i];
+
+		if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
+			stats->q_ipackets[i] = rxq->rx_pkts;
+			stats->q_ibytes[i] = rxq->rx_bytes;
+		}
+		rx_total += rxq->rx_pkts;
+		rx_total_bytes += rxq->rx_bytes;
+	}
+
+	for (i = 0; i < nb_tx; i++) {
+		struct szedata2_tx_queue *txq = dev->data->tx_queues[i];
+
+		if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
+			stats->q_opackets[i] = txq->tx_pkts;
+			stats->q_obytes[i] = txq->tx_bytes;
+			stats->q_errors[i] = txq->err_pkts;
+		}
+		tx_total += txq->tx_pkts;
+		tx_total_bytes += txq->tx_bytes;
+		tx_err_total += txq->err_pkts;
+	}
+
+	stats->ipackets = rx_total;
+	stats->opackets = tx_total;
+	stats->ibytes = rx_total_bytes;
+	stats->obytes = tx_total_bytes;
+	stats->oerrors = tx_err_total;
+	stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed;
+
+	return 0;
+}
+
+static void
+eth_stats_reset(struct rte_eth_dev *dev)
+{
+	uint16_t i;
+	uint16_t nb_rx = dev->data->nb_rx_queues;
+	uint16_t nb_tx = dev->data->nb_tx_queues;
+
+	for (i = 0; i < nb_rx; i++) {
+		struct szedata2_rx_queue *rxq = dev->data->rx_queues[i];
+		rxq->rx_pkts = 0;
+		rxq->rx_bytes = 0;
+		rxq->err_pkts = 0;
+	}
+	for (i = 0; i < nb_tx; i++) {
+		struct szedata2_tx_queue *txq = dev->data->tx_queues[i];
+		txq->tx_pkts = 0;
+		txq->tx_bytes = 0;
+		txq->err_pkts = 0;
+	}
+}
+
+static void
+eth_rx_queue_release(void *q)
+{
+	struct szedata2_rx_queue *rxq = (struct szedata2_rx_queue *)q;
+
+	if (rxq != NULL) {
+		if (rxq->sze != NULL)
+			szedata_close(rxq->sze);
+		rte_free(rxq);
+	}
+}
+
+static void
+eth_tx_queue_release(void *q)
+{
+	struct szedata2_tx_queue *txq = (struct szedata2_tx_queue *)q;
+
+	if (txq != NULL) {
+		if (txq->sze != NULL)
+			szedata_close(txq->sze);
+		rte_free(txq);
+	}
+}
+
+static void
+eth_dev_close(struct rte_eth_dev *dev)
+{
+	uint16_t i;
+	uint16_t nb_rx = dev->data->nb_rx_queues;
+	uint16_t nb_tx = dev->data->nb_tx_queues;
+
+	eth_dev_stop(dev);
+
+	for (i = 0; i < nb_rx; i++) {
+		eth_rx_queue_release(dev->data->rx_queues[i]);
+		dev->data->rx_queues[i] = NULL;
+	}
+	dev->data->nb_rx_queues = 0;
+	for (i = 0; i < nb_tx; i++) {
+		eth_tx_queue_release(dev->data->tx_queues[i]);
+		dev->data->tx_queues[i] = NULL;
+	}
+	dev->data->nb_tx_queues = 0;
+}
+
+static int
+eth_link_update(struct rte_eth_dev *dev,
+		int wait_to_complete __rte_unused)
+{
+	struct rte_eth_link link;
+
+	memset(&link, 0, sizeof(link));
+
+	link.link_speed = ETH_SPEED_NUM_100G;
+	link.link_duplex = ETH_LINK_FULL_DUPLEX;
+	link.link_status = ETH_LINK_UP;
+	link.link_autoneg = ETH_LINK_FIXED;
+
+	rte_eth_linkstatus_set(dev, &link);
+	return 0;
+}
+
+static int
+eth_dev_set_link_up(struct rte_eth_dev *dev __rte_unused)
+{
+	PMD_DRV_LOG(WARNING, "Setting link up is not supported.");
+	return 0;
+}
+
+static int
+eth_dev_set_link_down(struct rte_eth_dev *dev __rte_unused)
+{
+	PMD_DRV_LOG(WARNING, "Setting link down is not supported.");
+	return 0;
+}
+
+static int
+eth_rx_queue_setup(struct rte_eth_dev *dev,
+		uint16_t rx_queue_id,
+		uint16_t nb_rx_desc __rte_unused,
+		unsigned int socket_id,
+		const struct rte_eth_rxconf *rx_conf __rte_unused,
+		struct rte_mempool *mb_pool)
+{
+	struct szedata2_rx_queue *rxq;
+	int ret;
+	struct pmd_internals *internals = dev->data->dev_private;
+	uint8_t rx_channel = internals->rxq_base_id + rx_queue_id;
+	uint32_t rx = 1 << rx_channel;
+	uint32_t tx = 0;
+
+	PMD_INIT_FUNC_TRACE();
+
+	if (dev->data->rx_queues[rx_queue_id] != NULL) {
+		eth_rx_queue_release(dev->data->rx_queues[rx_queue_id]);
+		dev->data->rx_queues[rx_queue_id] = NULL;
+	}
+
+	rxq = rte_zmalloc_socket("szedata2 rx queue",
+			sizeof(struct szedata2_rx_queue),
+			RTE_CACHE_LINE_SIZE, socket_id);
+	if (rxq == NULL) {
+		PMD_INIT_LOG(ERR, "rte_zmalloc_socket() failed for rx queue id "
+				"%" PRIu16 "!", rx_queue_id);
+		return -ENOMEM;
+	}
+
+	rxq->priv = internals;
+	rxq->sze = szedata_open(internals->sze_dev_path);
+	if (rxq->sze == NULL) {
+		PMD_INIT_LOG(ERR, "szedata_open() failed for rx queue id "
+				"%" PRIu16 "!", rx_queue_id);
+		eth_rx_queue_release(rxq);
+		return -EINVAL;
+	}
+	ret = szedata_subscribe3(rxq->sze, &rx, &tx);
+	if (ret != 0 || rx == 0) {
+		PMD_INIT_LOG(ERR, "szedata_subscribe3() failed for rx queue id "
+				"%" PRIu16 "!", rx_queue_id);
+		eth_rx_queue_release(rxq);
+		return -EINVAL;
+	}
+	rxq->rx_channel = rx_channel;
+	rxq->qid = rx_queue_id;
+	rxq->in_port = dev->data->port_id;
+	rxq->mb_pool = mb_pool;
+	rxq->rx_pkts = 0;
+	rxq->rx_bytes = 0;
+	rxq->err_pkts = 0;
+
+	dev->data->rx_queues[rx_queue_id] = rxq;
+
+	PMD_INIT_LOG(DEBUG, "Configured rx queue id %" PRIu16 " on socket "
+			"%u (channel id %u).", rxq->qid, socket_id,
+			rxq->rx_channel);
+
+	return 0;
+}
+
+static int
+eth_tx_queue_setup(struct rte_eth_dev *dev,
+		uint16_t tx_queue_id,
+		uint16_t nb_tx_desc __rte_unused,
+		unsigned int socket_id,
+		const struct rte_eth_txconf *tx_conf __rte_unused)
+{
+	struct szedata2_tx_queue *txq;
+	int ret;
+	struct pmd_internals *internals = dev->data->dev_private;
+	uint8_t tx_channel = internals->txq_base_id + tx_queue_id;
+	uint32_t rx = 0;
+	uint32_t tx = 1 << tx_channel;
+
+	PMD_INIT_FUNC_TRACE();
+
+	if (dev->data->tx_queues[tx_queue_id] != NULL) {
+		eth_tx_queue_release(dev->data->tx_queues[tx_queue_id]);
+		dev->data->tx_queues[tx_queue_id] = NULL;
+	}
+
+	txq = rte_zmalloc_socket("szedata2 tx queue",
+			sizeof(struct szedata2_tx_queue),
+			RTE_CACHE_LINE_SIZE, socket_id);
+	if (txq == NULL) {
+		PMD_INIT_LOG(ERR, "rte_zmalloc_socket() failed for tx queue id "
+				"%" PRIu16 "!", tx_queue_id);
+		return -ENOMEM;
+	}
+
+	txq->priv = internals;
+	txq->sze = szedata_open(internals->sze_dev_path);
+	if (txq->sze == NULL) {
+		PMD_INIT_LOG(ERR, "szedata_open() failed for tx queue id "
+				"%" PRIu16 "!", tx_queue_id);
+		eth_tx_queue_release(txq);
+		return -EINVAL;
+	}
+	ret = szedata_subscribe3(txq->sze, &rx, &tx);
+	if (ret != 0 || tx == 0) {
+		PMD_INIT_LOG(ERR, "szedata_subscribe3() failed for tx queue id "
+				"%" PRIu16 "!", tx_queue_id);
+		eth_tx_queue_release(txq);
+		return -EINVAL;
+	}
+	txq->tx_channel = tx_channel;
+	txq->qid = tx_queue_id;
+	txq->tx_pkts = 0;
+	txq->tx_bytes = 0;
+	txq->err_pkts = 0;
+
+	dev->data->tx_queues[tx_queue_id] = txq;
+
+	PMD_INIT_LOG(DEBUG, "Configured tx queue id %" PRIu16 " on socket "
+			"%u (channel id %u).", txq->qid, socket_id,
+			txq->tx_channel);
+
+	return 0;
+}
+
+static int
+eth_mac_addr_set(struct rte_eth_dev *dev __rte_unused,
+		struct ether_addr *mac_addr __rte_unused)
+{
+	return 0;
+}
+
+static void
+eth_promiscuous_enable(struct rte_eth_dev *dev __rte_unused)
+{
+	PMD_DRV_LOG(WARNING, "Enabling promiscuous mode is not supported. "
+			"The card is always in promiscuous mode.");
+}
+
+static void
+eth_promiscuous_disable(struct rte_eth_dev *dev __rte_unused)
+{
+	PMD_DRV_LOG(WARNING, "Disabling promiscuous mode is not supported. "
+			"The card is always in promiscuous mode.");
+}
+
+static void
+eth_allmulticast_enable(struct rte_eth_dev *dev __rte_unused)
+{
+	PMD_DRV_LOG(WARNING, "Enabling allmulticast mode is not supported.");
+}
+
+static void
+eth_allmulticast_disable(struct rte_eth_dev *dev __rte_unused)
+{
+	PMD_DRV_LOG(WARNING, "Disabling allmulticast mode is not supported.");
+}
+
+static const struct eth_dev_ops ops = {
+	.dev_start          = eth_dev_start,
+	.dev_stop           = eth_dev_stop,
+	.dev_set_link_up    = eth_dev_set_link_up,
+	.dev_set_link_down  = eth_dev_set_link_down,
+	.dev_close          = eth_dev_close,
+	.dev_configure      = eth_dev_configure,
+	.dev_infos_get      = eth_dev_info,
+	.promiscuous_enable   = eth_promiscuous_enable,
+	.promiscuous_disable  = eth_promiscuous_disable,
+	.allmulticast_enable  = eth_allmulticast_enable,
+	.allmulticast_disable = eth_allmulticast_disable,
+	.rx_queue_start     = eth_rx_queue_start,
+	.rx_queue_stop      = eth_rx_queue_stop,
+	.tx_queue_start     = eth_tx_queue_start,
+	.tx_queue_stop      = eth_tx_queue_stop,
+	.rx_queue_setup     = eth_rx_queue_setup,
+	.tx_queue_setup     = eth_tx_queue_setup,
+	.rx_queue_release   = eth_rx_queue_release,
+	.tx_queue_release   = eth_tx_queue_release,
+	.link_update        = eth_link_update,
+	.stats_get          = eth_stats_get,
+	.stats_reset        = eth_stats_reset,
+	.mac_addr_set       = eth_mac_addr_set,
+};
+
+/*
+ * This function goes through sysfs and looks for an index of szedata2
+ * device file (/dev/szedataIIX, where X is the index).
+ *
+ * @return
+ *           0 on success
+ *          -1 on error
+ */
+static int
+get_szedata2_index(const struct rte_pci_addr *pcislot_addr, uint32_t *index)
+{
+	DIR *dir;
+	struct dirent *entry;
+	int ret;
+	uint32_t tmp_index;
+	FILE *fd;
+	char pcislot_path[PATH_MAX];
+	uint32_t domain;
+	uint8_t bus;
+	uint8_t devid;
+	uint8_t function;
+
+	dir = opendir("/sys/class/combo");
+	if (dir == NULL)
+		return -1;
+
+	/*
+	 * Iterate through all combosixX directories.
+	 * When the value in /sys/class/combo/combosixX/device/pcislot
+	 * file is the location of the ethernet device dev, "X" is the
+	 * index of the device.
+	 */
+	while ((entry = readdir(dir)) != NULL) {
+		ret = sscanf(entry->d_name, "combosix%u", &tmp_index);
+		if (ret != 1)
+			continue;
+
+		snprintf(pcislot_path, PATH_MAX,
+			"/sys/class/combo/combosix%u/device/pcislot",
+			tmp_index);
+
+		fd = fopen(pcislot_path, "r");
+		if (fd == NULL)
+			continue;
+
+		ret = fscanf(fd, "%8" SCNx32 ":%2" SCNx8 ":%2" SCNx8 ".%" SCNx8,
+				&domain, &bus, &devid, &function);
+		fclose(fd);
+		if (ret != 4)
+			continue;
+
+		if (pcislot_addr->domain == domain &&
+				pcislot_addr->bus == bus &&
+				pcislot_addr->devid == devid &&
+				pcislot_addr->function == function) {
+			*index = tmp_index;
+			closedir(dir);
+			return 0;
+		}
+	}
+
+	closedir(dir);
+	return -1;
+}
+
+/**
+ * @brief Initializes rte_eth_dev device.
+ * @param dev Device to initialize.
+ * @param pi Structure with info about DMA queues.
+ * @return 0 on success, negative error code on error.
+ */
+static int
+rte_szedata2_eth_dev_init(struct rte_eth_dev *dev, struct port_info *pi)
+{
+	int ret;
+	uint32_t szedata2_index;
+	char name[PATH_MAX];
+	struct rte_eth_dev_data *data = dev->data;
+	struct pmd_internals *internals = (struct pmd_internals *)
+		data->dev_private;
+	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+
+	PMD_INIT_FUNC_TRACE();
+
+	PMD_INIT_LOG(INFO, "Initializing eth_dev %s (driver %s)", data->name,
+			dev->device->driver->name);
+
+	/* Fill internal private structure. */
+	internals->dev = dev;
+	/* Get index of szedata2 device file and create path to device file */
+	ret = get_szedata2_index(&pci_dev->addr, &szedata2_index);
+	if (ret != 0) {
+		PMD_INIT_LOG(ERR, "Failed to get szedata2 device index!");
+		return -ENODEV;
+	}
+	snprintf(name, PATH_MAX, SZEDATA2_DEV_PATH_FMT, szedata2_index);
+	internals->sze_dev_path = strdup(name);
+	if (internals->sze_dev_path == NULL) {
+		PMD_INIT_LOG(ERR, "strdup() failed!");
+		return -ENOMEM;
+	}
+	PMD_INIT_LOG(INFO, "SZEDATA2 path: %s", internals->sze_dev_path);
+	internals->max_rx_queues = pi->rx_count;
+	internals->max_tx_queues = pi->tx_count;
+	internals->rxq_base_id = pi->rx_base_id;
+	internals->txq_base_id = pi->tx_base_id;
+	PMD_INIT_LOG(INFO, "%u RX DMA channels from id %u",
+			internals->max_rx_queues, internals->rxq_base_id);
+	PMD_INIT_LOG(INFO, "%u TX DMA channels from id %u",
+			internals->max_tx_queues, internals->txq_base_id);
+
+	/* Set rx, tx burst functions */
+	if (data->scattered_rx == 1)
+		dev->rx_pkt_burst = eth_szedata2_rx_scattered;
+	else
+		dev->rx_pkt_burst = eth_szedata2_rx;
+	dev->tx_pkt_burst = eth_szedata2_tx;
+
+	/* Set function callbacks for Ethernet API */
+	dev->dev_ops = &ops;
+
+	/* Get link state */
+	eth_link_update(dev, 0);
+
+	/* Allocate space for one mac address */
+	data->mac_addrs = rte_zmalloc(data->name, sizeof(struct ether_addr),
+			RTE_CACHE_LINE_SIZE);
+	if (data->mac_addrs == NULL) {
+		PMD_INIT_LOG(ERR, "Could not alloc space for MAC address!");
+		free(internals->sze_dev_path);
+		return -ENOMEM;
+	}
+
+	ether_addr_copy(&eth_addr, data->mac_addrs);
+
+	PMD_INIT_LOG(INFO, "%s device %s successfully initialized",
+			dev->device->driver->name, data->name);
+
+	return 0;
+}
+
+/**
+ * @brief Unitializes rte_eth_dev device.
+ * @param dev Device to uninitialize.
+ * @return 0 on success, negative error code on error.
+ */
+static int
+rte_szedata2_eth_dev_uninit(struct rte_eth_dev *dev)
+{
+	struct pmd_internals *internals = (struct pmd_internals *)
+		dev->data->dev_private;
+
+	PMD_INIT_FUNC_TRACE();
+
+	free(internals->sze_dev_path);
+	rte_free(dev->data->mac_addrs);
+
+	PMD_DRV_LOG(INFO, "%s device %s successfully uninitialized",
+			dev->device->driver->name, dev->data->name);
+
+	return 0;
+}
+
+static const struct rte_pci_id rte_szedata2_pci_id_table[] = {
+	{
+		RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE,
+				PCI_DEVICE_ID_NETCOPE_COMBO80G)
+	},
+	{
+		RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE,
+				PCI_DEVICE_ID_NETCOPE_COMBO100G)
+	},
+	{
+		RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE,
+				PCI_DEVICE_ID_NETCOPE_COMBO100G2)
+	},
+	{
+		RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE,
+				PCI_DEVICE_ID_NETCOPE_NFB200G2QL)
+	},
+	{
+		.vendor_id = 0,
+	}
+};
+
+/**
+ * @brief Gets info about DMA queues for ports.
+ * @param pci_dev PCI device structure.
+ * @param port_count Pointer to variable set with number of ports.
+ * @param pi Pointer to array of structures with info about DMA queues
+ *           for ports.
+ * @param max_ports Maximum number of ports.
+ * @return 0 on success, negative error code on error.
+ */
+static int
+get_port_info(struct rte_pci_device *pci_dev, unsigned int *port_count,
+		struct port_info *pi, unsigned int max_ports)
+{
+	struct szedata *szedata_temp;
+	char sze_dev_path[PATH_MAX];
+	uint32_t szedata2_index;
+	int ret;
+	uint16_t max_rx_queues;
+	uint16_t max_tx_queues;
+
+	if (max_ports == 0)
+		return -EINVAL;
+
+	memset(pi, 0, max_ports * sizeof(struct port_info));
+	*port_count = 0;
+
+	/* Get index of szedata2 device file and create path to device file */
+	ret = get_szedata2_index(&pci_dev->addr, &szedata2_index);
+	if (ret != 0) {
+		PMD_INIT_LOG(ERR, "Failed to get szedata2 device index!");
+		return -ENODEV;
+	}
+	snprintf(sze_dev_path, PATH_MAX, SZEDATA2_DEV_PATH_FMT, szedata2_index);
+
+	/*
+	 * Get number of available DMA RX and TX channels, which is maximum
+	 * number of queues that can be created.
+	 */
+	szedata_temp = szedata_open(sze_dev_path);
+	if (szedata_temp == NULL) {
+		PMD_INIT_LOG(ERR, "szedata_open(%s) failed", sze_dev_path);
+		return -EINVAL;
+	}
+	max_rx_queues = szedata_ifaces_available(szedata_temp, SZE2_DIR_RX);
+	max_tx_queues = szedata_ifaces_available(szedata_temp, SZE2_DIR_TX);
+	PMD_INIT_LOG(INFO, "Available DMA channels RX: %u TX: %u",
+			max_rx_queues, max_tx_queues);
+	if (max_rx_queues > RTE_ETH_SZEDATA2_MAX_RX_QUEUES) {
+		PMD_INIT_LOG(ERR, "%u RX queues exceeds supported number %u",
+				max_rx_queues, RTE_ETH_SZEDATA2_MAX_RX_QUEUES);
+		szedata_close(szedata_temp);
+		return -EINVAL;
+	}
+	if (max_tx_queues > RTE_ETH_SZEDATA2_MAX_TX_QUEUES) {
+		PMD_INIT_LOG(ERR, "%u TX queues exceeds supported number %u",
+				max_tx_queues, RTE_ETH_SZEDATA2_MAX_TX_QUEUES);
+		szedata_close(szedata_temp);
+		return -EINVAL;
+	}
+
+	if (pci_dev->id.device_id == PCI_DEVICE_ID_NETCOPE_NFB200G2QL) {
+		unsigned int i;
+		unsigned int rx_queues = max_rx_queues / max_ports;
+		unsigned int tx_queues = max_tx_queues / max_ports;
+
+		/*
+		 * Number of queues reported by szedata_ifaces_available()
+		 * is the number of all queues from all DMA controllers which
+		 * may reside at different numa locations.
+		 * All queues from the same DMA controller have the same numa
+		 * node.
+		 * Numa node from the first queue of each DMA controller is
+		 * retrieved.
+		 * If the numa node differs from the numa node of the queues
+		 * from the previous DMA controller the queues are assigned
+		 * to the next port.
+		 */
+
+		for (i = 0; i < max_ports; i++) {
+			int numa_rx = szedata_get_area_numa_node(szedata_temp,
+				SZE2_DIR_RX, rx_queues * i);
+			int numa_tx = szedata_get_area_numa_node(szedata_temp,
+				SZE2_DIR_TX, tx_queues * i);
+			unsigned int port_rx_queues = numa_rx != -1 ?
+				rx_queues : 0;
+			unsigned int port_tx_queues = numa_tx != -1 ?
+				tx_queues : 0;
+			PMD_INIT_LOG(DEBUG, "%u rx queues from id %u, numa %d",
+					rx_queues, rx_queues * i, numa_rx);
+			PMD_INIT_LOG(DEBUG, "%u tx queues from id %u, numa %d",
+					tx_queues, tx_queues * i, numa_tx);
+
+			if (port_rx_queues != 0 && port_tx_queues != 0 &&
+					numa_rx != numa_tx) {
+				PMD_INIT_LOG(ERR, "RX queue %u numa %d differs "
+						"from TX queue %u numa %d "
+						"unexpectedly",
+						rx_queues * i, numa_rx,
+						tx_queues * i, numa_tx);
+				szedata_close(szedata_temp);
+				return -EINVAL;
+			} else if (port_rx_queues == 0 && port_tx_queues == 0) {
+				continue;
+			} else {
+				unsigned int j;
+				unsigned int current = *port_count;
+				int port_numa = port_rx_queues != 0 ?
+					numa_rx : numa_tx;
+
+				for (j = 0; j < *port_count; j++) {
+					if (pi[j].numa_node ==
+							port_numa) {
+						current = j;
+						break;
+					}
+				}
+				if (pi[current].rx_count == 0 &&
+						pi[current].tx_count == 0) {
+					pi[current].rx_base_id = rx_queues * i;
+					pi[current].tx_base_id = tx_queues * i;
+					(*port_count)++;
+				} else if ((rx_queues * i !=
+						pi[current].rx_base_id +
+						pi[current].rx_count) ||
+						(tx_queues * i !=
+						 pi[current].tx_base_id +
+						 pi[current].tx_count)) {
+					PMD_INIT_LOG(ERR, "Queue ids does not "
+							"fulfill constraints");
+					szedata_close(szedata_temp);
+					return -EINVAL;
+				}
+				pi[current].rx_count += port_rx_queues;
+				pi[current].tx_count += port_tx_queues;
+				pi[current].numa_node = port_numa;
+			}
+		}
+	} else {
+		pi[0].rx_count = max_rx_queues;
+		pi[0].tx_count = max_tx_queues;
+		pi[0].numa_node = pci_dev->device.numa_node;
+		*port_count = 1;
+	}
+
+	szedata_close(szedata_temp);
+	return 0;
+}
+
+/**
+ * @brief Allocates rte_eth_dev device.
+ * @param pci_dev Corresponding PCI device.
+ * @param numa_node NUMA node on which device is allocated.
+ * @param port_no Id of rte_eth_device created on PCI device pci_dev.
+ * @return Pointer to allocated device or NULL on error.
+ */
+static struct rte_eth_dev *
+szedata2_eth_dev_allocate(struct rte_pci_device *pci_dev, int numa_node,
+		unsigned int port_no)
+{
+	struct rte_eth_dev *eth_dev;
+	char name[RTE_ETH_NAME_MAX_LEN];
+
+	PMD_INIT_FUNC_TRACE();
+
+	snprintf(name, RTE_ETH_NAME_MAX_LEN, "%s"
+			SZEDATA2_ETH_DEV_NAME_SUFFIX_FMT,
+			pci_dev->device.name, port_no);
+	PMD_INIT_LOG(DEBUG, "Allocating eth_dev %s", name);
+
+	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+		eth_dev = rte_eth_dev_allocate(name);
+		if (!eth_dev)
+			return NULL;
+
+		eth_dev->data->dev_private = rte_zmalloc_socket(name,
+			sizeof(struct pmd_internals), RTE_CACHE_LINE_SIZE,
+			numa_node);
+		if (!eth_dev->data->dev_private) {
+			rte_eth_dev_release_port(eth_dev);
+			return NULL;
+		}
+	} else {
+		eth_dev = rte_eth_dev_attach_secondary(name);
+		if (!eth_dev)
+			return NULL;
+	}
+
+	eth_dev->device = &pci_dev->device;
+	rte_eth_copy_pci_info(eth_dev, pci_dev);
+	eth_dev->data->numa_node = numa_node;
+	return eth_dev;
+}
+
+/**
+ * @brief Releases interval of rte_eth_dev devices from array.
+ * @param eth_devs Array of pointers to rte_eth_dev devices.
+ * @param from Index in array eth_devs to start with.
+ * @param to Index in array right after the last element to release.
+ *
+ * Used for releasing at failed initialization.
+ */
+static void
+szedata2_eth_dev_release_interval(struct rte_eth_dev **eth_devs,
+		unsigned int from, unsigned int to)
+{
+	unsigned int i;
+
+	PMD_INIT_FUNC_TRACE();
+
+	for (i = from; i < to; i++) {
+		rte_szedata2_eth_dev_uninit(eth_devs[i]);
+		rte_eth_dev_pci_release(eth_devs[i]);
+	}
+}
+
+/**
+ * @brief Callback .probe for struct rte_pci_driver.
+ */
+static int szedata2_eth_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
+	struct rte_pci_device *pci_dev)
+{
+	struct port_info port_info[SZEDATA2_MAX_PORTS];
+	unsigned int port_count;
+	int ret;
+	unsigned int i;
+	struct pci_dev_list_entry *list_entry;
+	struct rte_eth_dev *eth_devs[SZEDATA2_MAX_PORTS] = {NULL,};
+
+	PMD_INIT_FUNC_TRACE();
+
+	ret = get_port_info(pci_dev, &port_count, port_info,
+			SZEDATA2_MAX_PORTS);
+	if (ret != 0)
+		return ret;
+
+	if (port_count == 0) {
+		PMD_INIT_LOG(ERR, "No available ports!");
+		return -ENODEV;
+	}
+
+	list_entry = rte_zmalloc(NULL, sizeof(struct pci_dev_list_entry),
+			RTE_CACHE_LINE_SIZE);
+	if (list_entry == NULL) {
+		PMD_INIT_LOG(ERR, "rte_zmalloc() failed!");
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < port_count; i++) {
+		eth_devs[i] = szedata2_eth_dev_allocate(pci_dev,
+				port_info[i].numa_node, i);
+		if (eth_devs[i] == NULL) {
+			PMD_INIT_LOG(ERR, "Failed to alloc eth_dev for port %u",
+					i);
+			szedata2_eth_dev_release_interval(eth_devs, 0, i);
+			rte_free(list_entry);
+			return -ENOMEM;
+		}
+
+		ret = rte_szedata2_eth_dev_init(eth_devs[i], &port_info[i]);
+		if (ret != 0) {
+			PMD_INIT_LOG(ERR, "Failed to init eth_dev for port %u",
+					i);
+			rte_eth_dev_pci_release(eth_devs[i]);
+			szedata2_eth_dev_release_interval(eth_devs, 0, i);
+			rte_free(list_entry);
+			return ret;
+		}
+
+		rte_eth_dev_probing_finish(eth_devs[i]);
+	}
+
+	/*
+	 * Add pci_dev to list of PCI devices for this driver
+	 * which is used at remove callback to release all created eth_devs.
+	 */
+	list_entry->pci_dev = pci_dev;
+	list_entry->port_count = port_count;
+	LIST_INSERT_HEAD(&szedata2_pci_dev_list, list_entry, next);
+	return 0;
+}
+
+/**
+ * @brief Callback .remove for struct rte_pci_driver.
+ */
+static int szedata2_eth_pci_remove(struct rte_pci_device *pci_dev)
+{
+	unsigned int i;
+	unsigned int port_count;
+	char name[RTE_ETH_NAME_MAX_LEN];
+	struct rte_eth_dev *eth_dev;
+	int ret;
+	int retval = 0;
+	bool found = false;
+	struct pci_dev_list_entry *list_entry = NULL;
+
+	PMD_INIT_FUNC_TRACE();
+
+	LIST_FOREACH(list_entry, &szedata2_pci_dev_list, next) {
+		if (list_entry->pci_dev == pci_dev) {
+			port_count = list_entry->port_count;
+			found = true;
+			break;
+		}
+	}
+	LIST_REMOVE(list_entry, next);
+	rte_free(list_entry);
+
+	if (!found) {
+		PMD_DRV_LOG(ERR, "PCI device " PCI_PRI_FMT " not found",
+				pci_dev->addr.domain, pci_dev->addr.bus,
+				pci_dev->addr.devid, pci_dev->addr.function);
+		return -ENODEV;
+	}
+
+	for (i = 0; i < port_count; i++) {
+		snprintf(name, RTE_ETH_NAME_MAX_LEN, "%s"
+				SZEDATA2_ETH_DEV_NAME_SUFFIX_FMT,
+				pci_dev->device.name, i);
+		PMD_DRV_LOG(DEBUG, "Removing eth_dev %s", name);
+		eth_dev = rte_eth_dev_allocated(name);
+		if (!eth_dev) {
+			PMD_DRV_LOG(ERR, "eth_dev %s not found", name);
+			retval = retval ? retval : -ENODEV;
+		}
+
+		ret = rte_szedata2_eth_dev_uninit(eth_dev);
+		if (ret != 0) {
+			PMD_DRV_LOG(ERR, "eth_dev %s uninit failed", name);
+			retval = retval ? retval : ret;
+		}
+
+		rte_eth_dev_pci_release(eth_dev);
+	}
+
+	return retval;
+}
+
+static struct rte_pci_driver szedata2_eth_driver = {
+	.id_table = rte_szedata2_pci_id_table,
+	.probe = szedata2_eth_pci_probe,
+	.remove = szedata2_eth_pci_remove,
+};
+
+RTE_PMD_REGISTER_PCI(RTE_SZEDATA2_DRIVER_NAME, szedata2_eth_driver);
+RTE_PMD_REGISTER_PCI_TABLE(RTE_SZEDATA2_DRIVER_NAME, rte_szedata2_pci_id_table);
+RTE_PMD_REGISTER_KMOD_DEP(RTE_SZEDATA2_DRIVER_NAME,
+	"* combo6core & combov3 & szedata2 & ( szedata2_cv3 | szedata2_cv3_fdt )");
+
+RTE_INIT(szedata2_init_log)
+{
+	szedata2_logtype_init = rte_log_register("pmd.net.szedata2.init");
+	if (szedata2_logtype_init >= 0)
+		rte_log_set_level(szedata2_logtype_init, RTE_LOG_NOTICE);
+	szedata2_logtype_driver = rte_log_register("pmd.net.szedata2.driver");
+	if (szedata2_logtype_driver >= 0)
+		rte_log_set_level(szedata2_logtype_driver, RTE_LOG_NOTICE);
+}
diff --git a/src/spdk/dpdk/drivers/net/szedata2/rte_eth_szedata2.h b/src/spdk/dpdk/drivers/net/szedata2/rte_eth_szedata2.h
new file mode 100644
index 00000000..26a82b35
--- /dev/null
+++ b/src/spdk/dpdk/drivers/net/szedata2/rte_eth_szedata2.h
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2015 - 2016 CESNET
+ */
+
+#ifndef RTE_PMD_SZEDATA2_H_
+#define RTE_PMD_SZEDATA2_H_
+
+#include <stdint.h>
+
+#include <libsze2.h>
+
+#include <rte_common.h>
+
+/* PCI Vendor ID */
+#define PCI_VENDOR_ID_NETCOPE 0x1b26
+
+/* PCI Device IDs */
+#define PCI_DEVICE_ID_NETCOPE_COMBO80G 0xcb80
+#define PCI_DEVICE_ID_NETCOPE_COMBO100G 0xc1c1
+#define PCI_DEVICE_ID_NETCOPE_COMBO100G2 0xc2c1
+#define PCI_DEVICE_ID_NETCOPE_NFB200G2QL 0xc250
+
+/* szedata2_packet header length == 4 bytes == 2B segment size + 2B hw size */
+#define RTE_SZE2_PACKET_HEADER_SIZE 4
+
+#define RTE_SZE2_MMIO_MAX 10
+
+/*!
+ * Round 'what' to the nearest larger (or equal) multiple of '8'
+ * (szedata2 packet is aligned to 8 bytes)
+ */
+#define RTE_SZE2_ALIGN8(what) RTE_ALIGN(what, 8)
+
+/*! main handle structure */
+struct szedata {
+	int fd;
+	struct sze2_instance_info *info;
+	uint32_t *write_size;
+	void *space[RTE_SZE2_MMIO_MAX];
+	struct szedata_lock lock[2][2];
+
+	__u32 *rx_asize, *tx_asize;
+
+	/* szedata_read_next variables - to keep context (ct) */
+
+	/*
+	 * rx
+	 */
+	/** initial sze lock ptr */
+	const struct szedata_lock   *ct_rx_lck_orig;
+	/** current sze lock ptr (initial or next) */
+	const struct szedata_lock   *ct_rx_lck;
+	/** remaining bytes (not read) within current lock */
+	unsigned int                ct_rx_rem_bytes;
+	/** current pointer to locked memory */
+	unsigned char               *ct_rx_cur_ptr;
+	/**
+	 * allocated buffer to store RX packet if it was split
+	 * into 2 buffers
+	 */
+	unsigned char               *ct_rx_buffer;
+	/** registered function to provide filtering based on hwdata */
+	int (*ct_rx_filter)(u_int16_t hwdata_len, u_char *hwdata);
+
+	/*
+	 * tx
+	 */
+	/**
+	 * buffer for tx - packet is prepared here
+	 * (in future for burst write)
+	 */
+	unsigned char               *ct_tx_buffer;
+	/** initial sze TX lock ptrs - number according to TX interfaces */
+	const struct szedata_lock   **ct_tx_lck_orig;
+	/** current sze TX lock ptrs - number according to TX interfaces */
+	const struct szedata_lock   **ct_tx_lck;
+	/** already written bytes in both locks */
+	unsigned int                *ct_tx_written_bytes;
+	/** remaining bytes (not written) within current lock */
+	unsigned int                *ct_tx_rem_bytes;
+	/** current pointers to locked memory */
+	unsigned char               **ct_tx_cur_ptr;
+	/** NUMA node closest to PCIe device, or -1 */
+	int                         numa_node;
+};
+
+#endif /* RTE_PMD_SZEDATA2_H_ */
diff --git a/src/spdk/dpdk/drivers/net/szedata2/rte_pmd_szedata2_version.map b/src/spdk/dpdk/drivers/net/szedata2/rte_pmd_szedata2_version.map
new file mode 100644
index 00000000..ad607bbe
--- /dev/null
+++ b/src/spdk/dpdk/drivers/net/szedata2/rte_pmd_szedata2_version.map
@@ -0,0 +1,3 @@
+DPDK_2.2 {
+	local: *;
+};
diff --git a/src/spdk/dpdk/drivers/net/szedata2/szedata2_logs.h b/src/spdk/dpdk/drivers/net/szedata2/szedata2_logs.h
new file mode 100644
index 00000000..8d06ffa3
--- /dev/null
+++ b/src/spdk/dpdk/drivers/net/szedata2/szedata2_logs.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 CESNET
+ */
+
+#ifndef _SZEDATA2_LOGS_H_
+#define _SZEDATA2_LOGS_H_
+
+#include <rte_log.h>
+
+extern int szedata2_logtype_init;
+#define PMD_INIT_LOG(level, fmt, args...) \
+	rte_log(RTE_LOG_ ## level, szedata2_logtype_init, \
+		"%s(): " fmt "\n", __func__, ## args)
+
+#define PMD_INIT_FUNC_TRACE() PMD_INIT_LOG(DEBUG, " >>")
+
+extern int szedata2_logtype_driver;
+#define PMD_DRV_LOG(level, fmt, args...) \
+	rte_log(RTE_LOG_ ## level, szedata2_logtype_driver, \
+		"%s(): " fmt "\n", __func__, ## args)
+
+#endif /* _SZEDATA2_LOGS_H_ */