mbuf: add rte prefix to offload flags
[dpdk.git] / drivers / net / ena / ena_ethdev.c
index ffecdb8..73f8f94 100644 (file)
@@ -1,47 +1,13 @@
-/*-
-* BSD LICENSE
-*
-* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
-* All rights reserved.
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions
-* are met:
-*
-* * Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* * Redistributions in binary form must reproduce the above copyright
-* notice, this list of conditions and the following disclaimer in
-* the documentation and/or other materials provided with the
-* distribution.
-* * Neither the name of copyright holder nor the names of its
-* contributors may be used to endorse or promote products derived
-* from this software without specific prior written permission.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
+ * All rights reserved.
+ */
 
 #include <rte_string_fns.h>
-#include <rte_ether.h>
-#include <rte_ethdev_driver.h>
-#include <rte_ethdev_pci.h>
-#include <rte_tcp.h>
-#include <rte_atomic.h>
-#include <rte_dev.h>
 #include <rte_errno.h>
 #include <rte_version.h>
-#include <rte_eal_memconfig.h>
 #include <rte_net.h>
+#include <rte_kvargs.h>
 
 #include "ena_ethdev.h"
 #include "ena_logs.h"
 #include <ena_eth_io_defs.h>
 
 #define DRV_MODULE_VER_MAJOR   2
-#define DRV_MODULE_VER_MINOR   0
+#define DRV_MODULE_VER_MINOR   4
 #define DRV_MODULE_VER_SUBMINOR        0
 
-#define ENA_IO_TXQ_IDX(q)      (2 * (q))
-#define ENA_IO_RXQ_IDX(q)      (2 * (q) + 1)
-/*reverse version of ENA_IO_RXQ_IDX*/
-#define ENA_IO_RXQ_IDX_REV(q)  ((q - 1) / 2)
-
-/* While processing submitted and completed descriptors (rx and tx path
- * respectively) in a loop it is desired to:
- *  - perform batch submissions while populating sumbissmion queue
- *  - avoid blocking transmission of other packets during cleanup phase
- * Hence the utilization ratio of 1/8 of a queue size.
- */
-#define ENA_RING_DESCS_RATIO(ring_size)        (ring_size / 8)
-
 #define __MERGE_64B_H_L(h, l) (((uint64_t)h << 32) | l)
-#define TEST_BIT(val, bit_shift) (val & (1UL << bit_shift))
 
 #define GET_L4_HDR_LEN(mbuf)                                   \
        ((rte_pktmbuf_mtod_offset(mbuf, struct rte_tcp_hdr *,   \
                mbuf->l3_len + mbuf->l2_len)->data_off) >> 4)
 
-#define ENA_RX_RSS_TABLE_LOG_SIZE  7
-#define ENA_RX_RSS_TABLE_SIZE  (1 << ENA_RX_RSS_TABLE_LOG_SIZE)
-#define ENA_HASH_KEY_SIZE      40
 #define ETH_GSTRING_LEN        32
 
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#define ARRAY_SIZE(x) RTE_DIM(x)
 
 #define ENA_MIN_RING_DESC      128
 
+#define ENA_PTYPE_HAS_HASH     (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP)
+
 enum ethtool_stringset {
        ETH_SS_TEST             = 0,
        ETH_SS_STATS,
@@ -108,22 +59,34 @@ struct ena_stats {
 #define ENA_STAT_TX_ENTRY(stat) \
        ENA_STAT_ENTRY(stat, tx)
 
+#define ENA_STAT_ENI_ENTRY(stat) \
+       ENA_STAT_ENTRY(stat, eni)
+
 #define ENA_STAT_GLOBAL_ENTRY(stat) \
        ENA_STAT_ENTRY(stat, dev)
 
-#define ENA_MAX_RING_SIZE_RX 8192
-#define ENA_MAX_RING_SIZE_TX 1024
+/* Device arguments */
+#define ENA_DEVARG_LARGE_LLQ_HDR "large_llq_hdr"
 
 /*
  * Each rte_memzone should have unique name.
  * To satisfy it, count number of allocation and add it to name.
  */
-uint32_t ena_alloc_cnt;
+rte_atomic64_t ena_alloc_cnt;
 
 static const struct ena_stats ena_stats_global_strings[] = {
        ENA_STAT_GLOBAL_ENTRY(wd_expired),
        ENA_STAT_GLOBAL_ENTRY(dev_start),
        ENA_STAT_GLOBAL_ENTRY(dev_stop),
+       ENA_STAT_GLOBAL_ENTRY(tx_drops),
+};
+
+static const struct ena_stats ena_stats_eni_strings[] = {
+       ENA_STAT_ENI_ENTRY(bw_in_allowance_exceeded),
+       ENA_STAT_ENI_ENTRY(bw_out_allowance_exceeded),
+       ENA_STAT_ENI_ENTRY(pps_allowance_exceeded),
+       ENA_STAT_ENI_ENTRY(conntrack_allowance_exceeded),
+       ENA_STAT_ENI_ENTRY(linklocal_allowance_exceeded),
 };
 
 static const struct ena_stats ena_stats_tx_strings[] = {
@@ -149,6 +112,7 @@ static const struct ena_stats ena_stats_rx_strings[] = {
 };
 
 #define ENA_STATS_ARRAY_GLOBAL ARRAY_SIZE(ena_stats_global_strings)
+#define ENA_STATS_ARRAY_ENI    ARRAY_SIZE(ena_stats_eni_strings)
 #define ENA_STATS_ARRAY_TX     ARRAY_SIZE(ena_stats_tx_strings)
 #define ENA_STATS_ARRAY_RX     ARRAY_SIZE(ena_stats_rx_strings)
 
@@ -156,41 +120,45 @@ static const struct ena_stats ena_stats_rx_strings[] = {
                        DEV_TX_OFFLOAD_UDP_CKSUM |\
                        DEV_TX_OFFLOAD_IPV4_CKSUM |\
                        DEV_TX_OFFLOAD_TCP_TSO)
-#define MBUF_OFFLOADS (PKT_TX_L4_MASK |\
-                      PKT_TX_IP_CKSUM |\
-                      PKT_TX_TCP_SEG)
+#define MBUF_OFFLOADS (RTE_MBUF_F_TX_L4_MASK |\
+                      RTE_MBUF_F_TX_IP_CKSUM |\
+                      RTE_MBUF_F_TX_TCP_SEG)
 
 /** Vendor ID used by Amazon devices */
 #define PCI_VENDOR_ID_AMAZON 0x1D0F
 /** Amazon devices */
-#define PCI_DEVICE_ID_ENA_VF   0xEC20
-#define PCI_DEVICE_ID_ENA_LLQ_VF       0xEC21
+#define PCI_DEVICE_ID_ENA_VF           0xEC20
+#define PCI_DEVICE_ID_ENA_VF_RSERV0    0xEC21
 
-#define        ENA_TX_OFFLOAD_MASK     (\
-       PKT_TX_L4_MASK |         \
-       PKT_TX_IPV6 |            \
-       PKT_TX_IPV4 |            \
-       PKT_TX_IP_CKSUM |        \
-       PKT_TX_TCP_SEG)
+#define        ENA_TX_OFFLOAD_MASK     (RTE_MBUF_F_TX_L4_MASK |         \
+       RTE_MBUF_F_TX_IPV6 |            \
+       RTE_MBUF_F_TX_IPV4 |            \
+       RTE_MBUF_F_TX_IP_CKSUM |        \
+       RTE_MBUF_F_TX_TCP_SEG)
 
 #define        ENA_TX_OFFLOAD_NOTSUP_MASK      \
-       (PKT_TX_OFFLOAD_MASK ^ ENA_TX_OFFLOAD_MASK)
-
-int ena_logtype_init;
-int ena_logtype_driver;
+       (RTE_MBUF_F_TX_OFFLOAD_MASK ^ ENA_TX_OFFLOAD_MASK)
 
 static const struct rte_pci_id pci_id_ena_map[] = {
        { RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_VF) },
-       { RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_LLQ_VF) },
+       { RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_VF_RSERV0) },
        { .device_id = 0 },
 };
 
 static struct ena_aenq_handlers aenq_handlers;
 
 static int ena_device_init(struct ena_com_dev *ena_dev,
+                          struct rte_pci_device *pdev,
                           struct ena_com_dev_get_features_ctx *get_feat_ctx,
                           bool *wd_state);
 static int ena_dev_configure(struct rte_eth_dev *dev);
+static void ena_tx_map_mbuf(struct ena_ring *tx_ring,
+       struct ena_tx_buffer *tx_info,
+       struct rte_mbuf *mbuf,
+       void **push_header,
+       uint16_t *header_len);
+static int ena_xmit_mbuf(struct ena_ring *tx_ring, struct rte_mbuf *mbuf);
+static void ena_tx_cleanup(struct ena_ring *tx_ring);
 static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
                                  uint16_t nb_pkts);
 static uint16_t eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
@@ -202,14 +170,23 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
                              uint16_t nb_desc, unsigned int socket_id,
                              const struct rte_eth_rxconf *rx_conf,
                              struct rte_mempool *mp);
+static inline void ena_init_rx_mbuf(struct rte_mbuf *mbuf, uint16_t len);
+static struct rte_mbuf *ena_rx_mbuf(struct ena_ring *rx_ring,
+                                   struct ena_com_rx_buf_info *ena_bufs,
+                                   uint32_t descs,
+                                   uint16_t *next_to_clean,
+                                   uint8_t offset);
 static uint16_t eth_ena_recv_pkts(void *rx_queue,
                                  struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
+static int ena_add_single_rx_desc(struct ena_com_io_sq *io_sq,
+                                 struct rte_mbuf *mbuf, uint16_t id);
 static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count);
-static void ena_init_rings(struct ena_adapter *adapter);
+static void ena_init_rings(struct ena_adapter *adapter,
+                          bool disable_meta_caching);
 static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
 static int ena_start(struct rte_eth_dev *dev);
-static void ena_stop(struct rte_eth_dev *dev);
-static void ena_close(struct rte_eth_dev *dev);
+static int ena_stop(struct rte_eth_dev *dev);
+static int ena_close(struct rte_eth_dev *dev);
 static int ena_dev_reset(struct rte_eth_dev *dev);
 static int ena_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats);
 static void ena_rx_queue_release_all(struct rte_eth_dev *dev);
@@ -220,22 +197,16 @@ static void ena_rx_queue_release_bufs(struct ena_ring *ring);
 static void ena_tx_queue_release_bufs(struct ena_ring *ring);
 static int ena_link_update(struct rte_eth_dev *dev,
                           int wait_to_complete);
-static int ena_create_io_queue(struct ena_ring *ring);
+static int ena_create_io_queue(struct rte_eth_dev *dev, struct ena_ring *ring);
 static void ena_queue_stop(struct ena_ring *ring);
 static void ena_queue_stop_all(struct rte_eth_dev *dev,
                              enum ena_ring_type ring_type);
-static int ena_queue_start(struct ena_ring *ring);
+static int ena_queue_start(struct rte_eth_dev *dev, struct ena_ring *ring);
 static int ena_queue_start_all(struct rte_eth_dev *dev,
                               enum ena_ring_type ring_type);
 static void ena_stats_restart(struct rte_eth_dev *dev);
-static void ena_infos_get(struct rte_eth_dev *dev,
-                         struct rte_eth_dev_info *dev_info);
-static int ena_rss_reta_update(struct rte_eth_dev *dev,
-                              struct rte_eth_rss_reta_entry64 *reta_conf,
-                              uint16_t reta_size);
-static int ena_rss_reta_query(struct rte_eth_dev *dev,
-                             struct rte_eth_rss_reta_entry64 *reta_conf,
-                             uint16_t reta_size);
+static int ena_infos_get(struct rte_eth_dev *dev,
+                        struct rte_eth_dev_info *dev_info);
 static void ena_interrupt_handler_rte(void *cb_arg);
 static void ena_timer_wd_callback(struct rte_timer *timer, void *arg);
 static void ena_destroy_device(struct rte_eth_dev *eth_dev);
@@ -250,6 +221,17 @@ static int ena_xstats_get_by_id(struct rte_eth_dev *dev,
                                const uint64_t *ids,
                                uint64_t *values,
                                unsigned int n);
+static int ena_process_bool_devarg(const char *key,
+                                  const char *value,
+                                  void *opaque);
+static int ena_parse_devargs(struct ena_adapter *adapter,
+                            struct rte_devargs *devargs);
+static int ena_copy_eni_stats(struct ena_adapter *adapter);
+static int ena_setup_rx_intr(struct rte_eth_dev *dev);
+static int ena_rx_queue_intr_enable(struct rte_eth_dev *dev,
+                                   uint16_t queue_id);
+static int ena_rx_queue_intr_disable(struct rte_eth_dev *dev,
+                                    uint16_t queue_id);
 
 static const struct eth_dev_ops ena_dev_ops = {
        .dev_configure        = ena_dev_configure,
@@ -270,26 +252,15 @@ static const struct eth_dev_ops ena_dev_ops = {
        .dev_reset            = ena_dev_reset,
        .reta_update          = ena_rss_reta_update,
        .reta_query           = ena_rss_reta_query,
+       .rx_queue_intr_enable = ena_rx_queue_intr_enable,
+       .rx_queue_intr_disable = ena_rx_queue_intr_disable,
+       .rss_hash_update      = ena_rss_hash_update,
+       .rss_hash_conf_get    = ena_rss_hash_conf_get,
 };
 
-#define NUMA_NO_NODE   SOCKET_ID_ANY
-
-static inline int ena_cpu_to_node(int cpu)
-{
-       struct rte_config *config = rte_eal_get_configuration();
-       struct rte_fbarray *arr = &config->mem_config->memzones;
-       const struct rte_memzone *mz;
-
-       if (unlikely(cpu >= RTE_MAX_MEMZONE))
-               return NUMA_NO_NODE;
-
-       mz = rte_fbarray_get(arr, cpu);
-
-       return mz->socket_id;
-}
-
 static inline void ena_rx_mbuf_prepare(struct rte_mbuf *mbuf,
-                                      struct ena_com_rx_ctx *ena_rx_ctx)
+                                      struct ena_com_rx_ctx *ena_rx_ctx,
+                                      bool fill_hash)
 {
        uint64_t ol_flags = 0;
        uint32_t packet_type = 0;
@@ -299,15 +270,29 @@ static inline void ena_rx_mbuf_prepare(struct rte_mbuf *mbuf,
        else if (ena_rx_ctx->l4_proto == ENA_ETH_IO_L4_PROTO_UDP)
                packet_type |= RTE_PTYPE_L4_UDP;
 
-       if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV4)
+       if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV4) {
                packet_type |= RTE_PTYPE_L3_IPV4;
-       else if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV6)
+               if (unlikely(ena_rx_ctx->l3_csum_err))
+                       ol_flags |= RTE_MBUF_F_RX_IP_CKSUM_BAD;
+               else
+                       ol_flags |= RTE_MBUF_F_RX_IP_CKSUM_GOOD;
+       } else if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV6) {
                packet_type |= RTE_PTYPE_L3_IPV6;
+       }
+
+       if (!ena_rx_ctx->l4_csum_checked || ena_rx_ctx->frag)
+               ol_flags |= RTE_MBUF_F_RX_L4_CKSUM_UNKNOWN;
+       else
+               if (unlikely(ena_rx_ctx->l4_csum_err))
+                       ol_flags |= RTE_MBUF_F_RX_L4_CKSUM_BAD;
+               else
+                       ol_flags |= RTE_MBUF_F_RX_L4_CKSUM_GOOD;
 
-       if (unlikely(ena_rx_ctx->l4_csum_err))
-               ol_flags |= PKT_RX_L4_CKSUM_BAD;
-       if (unlikely(ena_rx_ctx->l3_csum_err))
-               ol_flags |= PKT_RX_IP_CKSUM_BAD;
+       if (fill_hash &&
+           likely((packet_type & ENA_PTYPE_HAS_HASH) && !ena_rx_ctx->frag)) {
+               ol_flags |= RTE_MBUF_F_RX_RSS_HASH;
+               mbuf->hash.rss = ena_rx_ctx->hash;
+       }
 
        mbuf->ol_flags = ol_flags;
        mbuf->packet_type = packet_type;
@@ -315,14 +300,15 @@ static inline void ena_rx_mbuf_prepare(struct rte_mbuf *mbuf,
 
 static inline void ena_tx_mbuf_prepare(struct rte_mbuf *mbuf,
                                       struct ena_com_tx_ctx *ena_tx_ctx,
-                                      uint64_t queue_offloads)
+                                      uint64_t queue_offloads,
+                                      bool disable_meta_caching)
 {
        struct ena_com_tx_meta *ena_meta = &ena_tx_ctx->ena_meta;
 
        if ((mbuf->ol_flags & MBUF_OFFLOADS) &&
            (queue_offloads & QUEUE_OFFLOADS)) {
                /* check if TSO is required */
-               if ((mbuf->ol_flags & PKT_TX_TCP_SEG) &&
+               if ((mbuf->ol_flags & RTE_MBUF_F_TX_TCP_SEG) &&
                    (queue_offloads & DEV_TX_OFFLOAD_TCP_TSO)) {
                        ena_tx_ctx->tso_enable = true;
 
@@ -330,11 +316,11 @@ static inline void ena_tx_mbuf_prepare(struct rte_mbuf *mbuf,
                }
 
                /* check if L3 checksum is needed */
-               if ((mbuf->ol_flags & PKT_TX_IP_CKSUM) &&
+               if ((mbuf->ol_flags & RTE_MBUF_F_TX_IP_CKSUM) &&
                    (queue_offloads & DEV_TX_OFFLOAD_IPV4_CKSUM))
                        ena_tx_ctx->l3_csum_enable = true;
 
-               if (mbuf->ol_flags & PKT_TX_IPV6) {
+               if (mbuf->ol_flags & RTE_MBUF_F_TX_IPV6) {
                        ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV6;
                } else {
                        ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV4;
@@ -347,12 +333,13 @@ static inline void ena_tx_mbuf_prepare(struct rte_mbuf *mbuf,
                }
 
                /* check if L4 checksum is needed */
-               if ((mbuf->ol_flags & PKT_TX_TCP_CKSUM) &&
+               if (((mbuf->ol_flags & RTE_MBUF_F_TX_L4_MASK) == RTE_MBUF_F_TX_TCP_CKSUM) &&
                    (queue_offloads & DEV_TX_OFFLOAD_TCP_CKSUM)) {
                        ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_TCP;
                        ena_tx_ctx->l4_csum_enable = true;
-               } else if ((mbuf->ol_flags & PKT_TX_UDP_CKSUM) &&
-                          (queue_offloads & DEV_TX_OFFLOAD_UDP_CKSUM)) {
+               } else if (((mbuf->ol_flags & RTE_MBUF_F_TX_L4_MASK) ==
+                               RTE_MBUF_F_TX_UDP_CKSUM) &&
+                               (queue_offloads & DEV_TX_OFFLOAD_UDP_CKSUM)) {
                        ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UDP;
                        ena_tx_ctx->l4_csum_enable = true;
                } else {
@@ -364,26 +351,15 @@ static inline void ena_tx_mbuf_prepare(struct rte_mbuf *mbuf,
                ena_meta->l3_hdr_len = mbuf->l3_len;
                ena_meta->l3_hdr_offset = mbuf->l2_len;
 
+               ena_tx_ctx->meta_valid = true;
+       } else if (disable_meta_caching) {
+               memset(ena_meta, 0, sizeof(*ena_meta));
                ena_tx_ctx->meta_valid = true;
        } else {
                ena_tx_ctx->meta_valid = false;
        }
 }
 
-static inline int validate_rx_req_id(struct ena_ring *rx_ring, uint16_t req_id)
-{
-       if (likely(req_id < rx_ring->ring_size))
-               return 0;
-
-       RTE_LOG(ERR, PMD, "Invalid rx req_id: %hu\n", req_id);
-
-       rx_ring->adapter->reset_reason = ENA_REGS_RESET_INV_RX_REQ_ID;
-       rx_ring->adapter->trigger_reset = true;
-       ++rx_ring->rx_stats.bad_req_id;
-
-       return -EFAULT;
-}
-
 static int validate_tx_req_id(struct ena_ring *tx_ring, u16 req_id)
 {
        struct ena_tx_buffer *tx_info = NULL;
@@ -395,9 +371,9 @@ static int validate_tx_req_id(struct ena_ring *tx_ring, u16 req_id)
        }
 
        if (tx_info)
-               RTE_LOG(ERR, PMD, "tx_info doesn't have valid mbuf\n");
+               PMD_TX_LOG(ERR, "tx_info doesn't have valid mbuf\n");
        else
-               RTE_LOG(ERR, PMD, "Invalid req_id: %hu\n", req_id);
+               PMD_TX_LOG(ERR, "Invalid req_id: %hu\n", req_id);
 
        /* Trigger device reset */
        ++tx_ring->tx_stats.bad_req_id;
@@ -414,7 +390,7 @@ static void ena_config_host_info(struct ena_com_dev *ena_dev)
        /* Allocate only the host info */
        rc = ena_com_allocate_host_info(ena_dev);
        if (rc) {
-               RTE_LOG(ERR, PMD, "Cannot allocate host info\n");
+               PMD_DRV_LOG(ERR, "Cannot allocate host info\n");
                return;
        }
 
@@ -434,12 +410,16 @@ static void ena_config_host_info(struct ena_com_dev *ena_dev)
                        ENA_ADMIN_HOST_INFO_SUB_MINOR_SHIFT);
        host_info->num_cpus = rte_lcore_count();
 
+       host_info->driver_supported_features =
+               ENA_ADMIN_HOST_INFO_RX_OFFSET_MASK |
+               ENA_ADMIN_HOST_INFO_RSS_CONFIGURABLE_FUNCTION_KEY_MASK;
+
        rc = ena_com_set_host_attributes(ena_dev);
        if (rc) {
                if (rc == -ENA_COM_UNSUPPORTED)
-                       RTE_LOG(WARNING, PMD, "Cannot set host attributes\n");
+                       PMD_DRV_LOG(WARNING, "Cannot set host attributes\n");
                else
-                       RTE_LOG(ERR, PMD, "Cannot set host attributes\n");
+                       PMD_DRV_LOG(ERR, "Cannot set host attributes\n");
 
                goto err;
        }
@@ -451,11 +431,11 @@ err:
 }
 
 /* This function calculates the number of xstats based on the current config */
-static unsigned int ena_xstats_calc_num(struct rte_eth_dev *dev)
+static unsigned int ena_xstats_calc_num(struct rte_eth_dev_data *data)
 {
-       return ENA_STATS_ARRAY_GLOBAL +
-               (dev->data->nb_tx_queues * ENA_STATS_ARRAY_TX) +
-               (dev->data->nb_rx_queues * ENA_STATS_ARRAY_RX);
+       return ENA_STATS_ARRAY_GLOBAL + ENA_STATS_ARRAY_ENI +
+               (data->nb_tx_queues * ENA_STATS_ARRAY_TX) +
+               (data->nb_rx_queues * ENA_STATS_ARRAY_RX);
 }
 
 static void ena_config_debug_area(struct ena_adapter *adapter)
@@ -463,23 +443,23 @@ static void ena_config_debug_area(struct ena_adapter *adapter)
        u32 debug_area_size;
        int rc, ss_count;
 
-       ss_count = ena_xstats_calc_num(adapter->rte_dev);
+       ss_count = ena_xstats_calc_num(adapter->edev_data);
 
        /* allocate 32 bytes for each string and 64bit for the value */
        debug_area_size = ss_count * ETH_GSTRING_LEN + sizeof(u64) * ss_count;
 
        rc = ena_com_allocate_debug_area(&adapter->ena_dev, debug_area_size);
        if (rc) {
-               RTE_LOG(ERR, PMD, "Cannot allocate debug area\n");
+               PMD_DRV_LOG(ERR, "Cannot allocate debug area\n");
                return;
        }
 
        rc = ena_com_set_host_attributes(&adapter->ena_dev);
        if (rc) {
                if (rc == -ENA_COM_UNSUPPORTED)
-                       RTE_LOG(WARNING, PMD, "Cannot set host attributes\n");
+                       PMD_DRV_LOG(WARNING, "Cannot set host attributes\n");
                else
-                       RTE_LOG(ERR, PMD, "Cannot set host attributes\n");
+                       PMD_DRV_LOG(ERR, "Cannot set host attributes\n");
 
                goto err;
        }
@@ -489,14 +469,18 @@ err:
        ena_com_delete_debug_area(&adapter->ena_dev);
 }
 
-static void ena_close(struct rte_eth_dev *dev)
+static int ena_close(struct rte_eth_dev *dev)
 {
        struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
        struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
        struct ena_adapter *adapter = dev->data->dev_private;
+       int ret = 0;
+
+       if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+               return 0;
 
        if (adapter->state == ENA_ADAPTER_STATE_RUNNING)
-               ena_stop(dev);
+               ret = ena_stop(dev);
        adapter->state = ENA_ADAPTER_STATE_CLOSED;
 
        ena_rx_queue_release_all(dev);
@@ -508,13 +492,15 @@ static void ena_close(struct rte_eth_dev *dev)
        rte_intr_disable(intr_handle);
        rte_intr_callback_unregister(intr_handle,
                                     ena_interrupt_handler_rte,
-                                    adapter);
+                                    dev);
 
        /*
         * MAC is not allocated dynamically. Setting NULL should prevent from
         * release of the resource in the rte_eth_dev_release_port().
         */
        dev->data->mac_addrs = NULL;
+
+       return ret;
 }
 
 static int
@@ -522,151 +508,16 @@ ena_dev_reset(struct rte_eth_dev *dev)
 {
        int rc = 0;
 
+       /* Cannot release memory in secondary process */
+       if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+               PMD_DRV_LOG(WARNING, "dev_reset not supported in secondary.\n");
+               return -EPERM;
+       }
+
        ena_destroy_device(dev);
        rc = eth_ena_dev_init(dev);
        if (rc)
-               PMD_INIT_LOG(CRIT, "Cannot initialize device");
-
-       return rc;
-}
-
-static int ena_rss_reta_update(struct rte_eth_dev *dev,
-                              struct rte_eth_rss_reta_entry64 *reta_conf,
-                              uint16_t reta_size)
-{
-       struct ena_adapter *adapter = dev->data->dev_private;
-       struct ena_com_dev *ena_dev = &adapter->ena_dev;
-       int rc, i;
-       u16 entry_value;
-       int conf_idx;
-       int idx;
-
-       if ((reta_size == 0) || (reta_conf == NULL))
-               return -EINVAL;
-
-       if (reta_size > ENA_RX_RSS_TABLE_SIZE) {
-               RTE_LOG(WARNING, PMD,
-                       "indirection table %d is bigger than supported (%d)\n",
-                       reta_size, ENA_RX_RSS_TABLE_SIZE);
-               return -EINVAL;
-       }
-
-       for (i = 0 ; i < reta_size ; i++) {
-               /* each reta_conf is for 64 entries.
-                * to support 128 we use 2 conf of 64
-                */
-               conf_idx = i / RTE_RETA_GROUP_SIZE;
-               idx = i % RTE_RETA_GROUP_SIZE;
-               if (TEST_BIT(reta_conf[conf_idx].mask, idx)) {
-                       entry_value =
-                               ENA_IO_RXQ_IDX(reta_conf[conf_idx].reta[idx]);
-
-                       rc = ena_com_indirect_table_fill_entry(ena_dev,
-                                                              i,
-                                                              entry_value);
-                       if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
-                               RTE_LOG(ERR, PMD,
-                                       "Cannot fill indirect table\n");
-                               return rc;
-                       }
-               }
-       }
-
-       rc = ena_com_indirect_table_set(ena_dev);
-       if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
-               RTE_LOG(ERR, PMD, "Cannot flush the indirect table\n");
-               return rc;
-       }
-
-       RTE_LOG(DEBUG, PMD, "%s(): RSS configured %d entries  for port %d\n",
-               __func__, reta_size, adapter->rte_dev->data->port_id);
-
-       return 0;
-}
-
-/* Query redirection table. */
-static int ena_rss_reta_query(struct rte_eth_dev *dev,
-                             struct rte_eth_rss_reta_entry64 *reta_conf,
-                             uint16_t reta_size)
-{
-       struct ena_adapter *adapter = dev->data->dev_private;
-       struct ena_com_dev *ena_dev = &adapter->ena_dev;
-       int rc;
-       int i;
-       u32 indirect_table[ENA_RX_RSS_TABLE_SIZE] = {0};
-       int reta_conf_idx;
-       int reta_idx;
-
-       if (reta_size == 0 || reta_conf == NULL ||
-           (reta_size > RTE_RETA_GROUP_SIZE && ((reta_conf + 1) == NULL)))
-               return -EINVAL;
-
-       rc = ena_com_indirect_table_get(ena_dev, indirect_table);
-       if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
-               RTE_LOG(ERR, PMD, "cannot get indirect table\n");
-               return -ENOTSUP;
-       }
-
-       for (i = 0 ; i < reta_size ; i++) {
-               reta_conf_idx = i / RTE_RETA_GROUP_SIZE;
-               reta_idx = i % RTE_RETA_GROUP_SIZE;
-               if (TEST_BIT(reta_conf[reta_conf_idx].mask, reta_idx))
-                       reta_conf[reta_conf_idx].reta[reta_idx] =
-                               ENA_IO_RXQ_IDX_REV(indirect_table[i]);
-       }
-
-       return 0;
-}
-
-static int ena_rss_init_default(struct ena_adapter *adapter)
-{
-       struct ena_com_dev *ena_dev = &adapter->ena_dev;
-       uint16_t nb_rx_queues = adapter->rte_dev->data->nb_rx_queues;
-       int rc, i;
-       u32 val;
-
-       rc = ena_com_rss_init(ena_dev, ENA_RX_RSS_TABLE_LOG_SIZE);
-       if (unlikely(rc)) {
-               RTE_LOG(ERR, PMD, "Cannot init indirect table\n");
-               goto err_rss_init;
-       }
-
-       for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) {
-               val = i % nb_rx_queues;
-               rc = ena_com_indirect_table_fill_entry(ena_dev, i,
-                                                      ENA_IO_RXQ_IDX(val));
-               if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
-                       RTE_LOG(ERR, PMD, "Cannot fill indirect table\n");
-                       goto err_fill_indir;
-               }
-       }
-
-       rc = ena_com_fill_hash_function(ena_dev, ENA_ADMIN_CRC32, NULL,
-                                       ENA_HASH_KEY_SIZE, 0xFFFFFFFF);
-       if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
-               RTE_LOG(INFO, PMD, "Cannot fill hash function\n");
-               goto err_fill_indir;
-       }
-
-       rc = ena_com_set_default_hash_ctrl(ena_dev);
-       if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
-               RTE_LOG(INFO, PMD, "Cannot fill hash control\n");
-               goto err_fill_indir;
-       }
-
-       rc = ena_com_indirect_table_set(ena_dev);
-       if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
-               RTE_LOG(ERR, PMD, "Cannot flush the indirect table\n");
-               goto err_fill_indir;
-       }
-       RTE_LOG(DEBUG, PMD, "RSS configured for port %d\n",
-               adapter->rte_dev->data->port_id);
-
-       return 0;
-
-err_fill_indir:
-       ena_com_rss_destroy(ena_dev);
-err_rss_init:
+               PMD_INIT_LOG(CRIT, "Cannot initialize device\n");
 
        return rc;
 }
@@ -710,7 +561,7 @@ static void ena_rx_queue_release(void *queue)
 
        ring->configured = 0;
 
-       RTE_LOG(NOTICE, PMD, "RX Queue %d:%d released\n",
+       PMD_DRV_LOG(NOTICE, "Rx queue %d:%d released\n",
                ring->port_id, ring->id);
 }
 
@@ -734,7 +585,7 @@ static void ena_tx_queue_release(void *queue)
 
        ring->configured = 0;
 
-       RTE_LOG(NOTICE, PMD, "TX Queue %d:%d released\n",
+       PMD_DRV_LOG(NOTICE, "Tx queue %d:%d released\n",
                ring->port_id, ring->id);
 }
 
@@ -742,11 +593,13 @@ static void ena_rx_queue_release_bufs(struct ena_ring *ring)
 {
        unsigned int i;
 
-       for (i = 0; i < ring->ring_size; ++i)
-               if (ring->rx_buffer_info[i]) {
-                       rte_mbuf_raw_free(ring->rx_buffer_info[i]);
-                       ring->rx_buffer_info[i] = NULL;
+       for (i = 0; i < ring->ring_size; ++i) {
+               struct ena_rx_buffer *rx_info = &ring->rx_buffer_info[i];
+               if (rx_info->mbuf) {
+                       rte_mbuf_raw_free(rx_info->mbuf);
+                       rx_info->mbuf = NULL;
                }
+       }
 }
 
 static void ena_tx_queue_release_bufs(struct ena_ring *ring)
@@ -756,8 +609,10 @@ static void ena_tx_queue_release_bufs(struct ena_ring *ring)
        for (i = 0; i < ring->ring_size; ++i) {
                struct ena_tx_buffer *tx_buf = &ring->tx_buffer_info[i];
 
-               if (tx_buf->mbuf)
+               if (tx_buf->mbuf) {
                        rte_pktmbuf_free(tx_buf->mbuf);
+                       tx_buf->mbuf = NULL;
+               }
        }
 }
 
@@ -795,19 +650,19 @@ static int ena_queue_start_all(struct rte_eth_dev *dev,
                        if (ring_type == ENA_RING_TYPE_RX) {
                                ena_assert_msg(
                                        dev->data->rx_queues[i] == &queues[i],
-                                       "Inconsistent state of rx queues\n");
+                                       "Inconsistent state of Rx queues\n");
                        } else {
                                ena_assert_msg(
                                        dev->data->tx_queues[i] == &queues[i],
-                                       "Inconsistent state of tx queues\n");
+                                       "Inconsistent state of Tx queues\n");
                        }
 
-                       rc = ena_queue_start(&queues[i]);
+                       rc = ena_queue_start(dev, &queues[i]);
 
                        if (rc) {
                                PMD_INIT_LOG(ERR,
-                                            "failed to start queue %d type(%d)",
-                                            i, ring_type);
+                                       "Failed to start queue[%d] of type(%d)\n",
+                                       i, ring_type);
                                goto err;
                        }
                }
@@ -827,10 +682,10 @@ static uint32_t ena_get_mtu_conf(struct ena_adapter *adapter)
 {
        uint32_t max_frame_len = adapter->max_mtu;
 
-       if (adapter->rte_eth_dev_data->dev_conf.rxmode.offloads &
+       if (adapter->edev_data->dev_conf.rxmode.offloads &
            DEV_RX_OFFLOAD_JUMBO_FRAME)
                max_frame_len =
-                       adapter->rte_eth_dev_data->dev_conf.rxmode.max_rx_pkt_len;
+                       adapter->edev_data->dev_conf.rxmode.max_rx_pkt_len;
 
        return max_frame_len;
 }
@@ -840,9 +695,9 @@ static int ena_check_valid_conf(struct ena_adapter *adapter)
        uint32_t max_frame_len = ena_get_mtu_conf(adapter);
 
        if (max_frame_len > adapter->max_mtu || max_frame_len < ENA_MIN_MTU) {
-               PMD_INIT_LOG(ERR, "Unsupported MTU of %d. "
-                                 "max mtu: %d, min mtu: %d",
-                            max_frame_len, adapter->max_mtu, ENA_MIN_MTU);
+               PMD_INIT_LOG(ERR,
+                       "Unsupported MTU of %d. Max MTU: %d, min MTU: %d\n",
+                       max_frame_len, adapter->max_mtu, ENA_MIN_MTU);
                return ENA_COM_UNSUPPORTED;
        }
 
@@ -850,29 +705,27 @@ static int ena_check_valid_conf(struct ena_adapter *adapter)
 }
 
 static int
-ena_calc_queue_size(struct ena_calc_queue_size_ctx *ctx)
+ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *ctx,
+                      bool use_large_llq_hdr)
 {
        struct ena_admin_feature_llq_desc *llq = &ctx->get_feat_ctx->llq;
        struct ena_com_dev *ena_dev = ctx->ena_dev;
-       uint32_t tx_queue_size = ENA_MAX_RING_SIZE_TX;
-       uint32_t rx_queue_size = ENA_MAX_RING_SIZE_RX;
+       uint32_t max_tx_queue_size;
+       uint32_t max_rx_queue_size;
 
        if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
                struct ena_admin_queue_ext_feature_fields *max_queue_ext =
                        &ctx->get_feat_ctx->max_queue_ext.max_queue_ext;
-               rx_queue_size = RTE_MIN(rx_queue_size,
-                       max_queue_ext->max_rx_cq_depth);
-               rx_queue_size = RTE_MIN(rx_queue_size,
+               max_rx_queue_size = RTE_MIN(max_queue_ext->max_rx_cq_depth,
                        max_queue_ext->max_rx_sq_depth);
-               tx_queue_size = RTE_MIN(tx_queue_size,
-                       max_queue_ext->max_tx_cq_depth);
+               max_tx_queue_size = max_queue_ext->max_tx_cq_depth;
 
                if (ena_dev->tx_mem_queue_type ==
                    ENA_ADMIN_PLACEMENT_POLICY_DEV) {
-                       tx_queue_size = RTE_MIN(tx_queue_size,
+                       max_tx_queue_size = RTE_MIN(max_tx_queue_size,
                                llq->max_llq_depth);
                } else {
-                       tx_queue_size = RTE_MIN(tx_queue_size,
+                       max_tx_queue_size = RTE_MIN(max_tx_queue_size,
                                max_queue_ext->max_tx_sq_depth);
                }
 
@@ -883,39 +736,51 @@ ena_calc_queue_size(struct ena_calc_queue_size_ctx *ctx)
        } else {
                struct ena_admin_queue_feature_desc *max_queues =
                        &ctx->get_feat_ctx->max_queues;
-               rx_queue_size = RTE_MIN(rx_queue_size,
-                       max_queues->max_cq_depth);
-               rx_queue_size = RTE_MIN(rx_queue_size,
+               max_rx_queue_size = RTE_MIN(max_queues->max_cq_depth,
                        max_queues->max_sq_depth);
-               tx_queue_size = RTE_MIN(tx_queue_size,
-                       max_queues->max_cq_depth);
+               max_tx_queue_size = max_queues->max_cq_depth;
 
                if (ena_dev->tx_mem_queue_type ==
                    ENA_ADMIN_PLACEMENT_POLICY_DEV) {
-                       tx_queue_size = RTE_MIN(tx_queue_size,
+                       max_tx_queue_size = RTE_MIN(max_tx_queue_size,
                                llq->max_llq_depth);
                } else {
-                       tx_queue_size = RTE_MIN(tx_queue_size,
+                       max_tx_queue_size = RTE_MIN(max_tx_queue_size,
                                max_queues->max_sq_depth);
                }
 
                ctx->max_rx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
-                       max_queues->max_packet_tx_descs);
-               ctx->max_tx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
                        max_queues->max_packet_rx_descs);
+               ctx->max_tx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
+                       max_queues->max_packet_tx_descs);
        }
 
        /* Round down to the nearest power of 2 */
-       rx_queue_size = rte_align32prevpow2(rx_queue_size);
-       tx_queue_size = rte_align32prevpow2(tx_queue_size);
+       max_rx_queue_size = rte_align32prevpow2(max_rx_queue_size);
+       max_tx_queue_size = rte_align32prevpow2(max_tx_queue_size);
+
+       if (use_large_llq_hdr) {
+               if ((llq->entry_size_ctrl_supported &
+                    ENA_ADMIN_LIST_ENTRY_SIZE_256B) &&
+                   (ena_dev->tx_mem_queue_type ==
+                    ENA_ADMIN_PLACEMENT_POLICY_DEV)) {
+                       max_tx_queue_size /= 2;
+                       PMD_INIT_LOG(INFO,
+                               "Forcing large headers and decreasing maximum Tx queue size to %d\n",
+                               max_tx_queue_size);
+               } else {
+                       PMD_INIT_LOG(ERR,
+                               "Forcing large headers failed: LLQ is disabled or device does not support large headers\n");
+               }
+       }
 
-       if (unlikely(rx_queue_size == 0 || tx_queue_size == 0)) {
-               PMD_INIT_LOG(ERR, "Invalid queue size");
+       if (unlikely(max_rx_queue_size == 0 || max_tx_queue_size == 0)) {
+               PMD_INIT_LOG(ERR, "Invalid queue size\n");
                return -EFAULT;
        }
 
-       ctx->rx_queue_size = rx_queue_size;
-       ctx->tx_queue_size = tx_queue_size;
+       ctx->max_tx_queue_size = max_tx_queue_size;
+       ctx->max_rx_queue_size = max_rx_queue_size;
 
        return 0;
 }
@@ -927,7 +792,7 @@ static void ena_stats_restart(struct rte_eth_dev *dev)
        rte_atomic64_init(&adapter->drv_stats->ierrors);
        rte_atomic64_init(&adapter->drv_stats->oerrors);
        rte_atomic64_init(&adapter->drv_stats->rx_nombuf);
-       rte_atomic64_init(&adapter->drv_stats->rx_drops);
+       adapter->drv_stats->rx_drops = 0;
 }
 
 static int ena_stats_get(struct rte_eth_dev *dev,
@@ -944,9 +809,12 @@ static int ena_stats_get(struct rte_eth_dev *dev,
                return -ENOTSUP;
 
        memset(&ena_stats, 0, sizeof(ena_stats));
+
+       rte_spinlock_lock(&adapter->admin_lock);
        rc = ena_com_get_dev_basic_stats(ena_dev, &ena_stats);
+       rte_spinlock_unlock(&adapter->admin_lock);
        if (unlikely(rc)) {
-               RTE_LOG(ERR, PMD, "Could not retrieve statistics from ENA\n");
+               PMD_DRV_LOG(ERR, "Could not retrieve statistics from ENA\n");
                return rc;
        }
 
@@ -961,7 +829,7 @@ static int ena_stats_get(struct rte_eth_dev *dev,
                                        ena_stats.tx_bytes_low);
 
        /* Driver related stats */
-       stats->imissed = rte_atomic64_read(&adapter->drv_stats->rx_drops);
+       stats->imissed = adapter->drv_stats->rx_drops;
        stats->ierrors = rte_atomic64_read(&adapter->drv_stats->ierrors);
        stats->oerrors = rte_atomic64_read(&adapter->drv_stats->oerrors);
        stats->rx_nombuf = rte_atomic64_read(&adapter->drv_stats->rx_nombuf);
@@ -1003,18 +871,17 @@ static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
        ena_assert_msg(ena_dev != NULL, "Uninitialized device\n");
 
        if (mtu > ena_get_mtu_conf(adapter) || mtu < ENA_MIN_MTU) {
-               RTE_LOG(ERR, PMD,
-                       "Invalid MTU setting. new_mtu: %d "
-                       "max mtu: %d min mtu: %d\n",
+               PMD_DRV_LOG(ERR,
+                       "Invalid MTU setting. New MTU: %d, max MTU: %d, min MTU: %d\n",
                        mtu, ena_get_mtu_conf(adapter), ENA_MIN_MTU);
                return -EINVAL;
        }
 
        rc = ena_com_set_dev_mtu(ena_dev, mtu);
        if (rc)
-               RTE_LOG(ERR, PMD, "Could not set MTU: %d\n", mtu);
+               PMD_DRV_LOG(ERR, "Could not set MTU: %d\n", mtu);
        else
-               RTE_LOG(NOTICE, PMD, "Set MTU: %d\n", mtu);
+               PMD_DRV_LOG(NOTICE, "MTU set to: %d\n", mtu);
 
        return rc;
 }
@@ -1025,10 +892,20 @@ static int ena_start(struct rte_eth_dev *dev)
        uint64_t ticks;
        int rc = 0;
 
+       /* Cannot allocate memory in secondary process */
+       if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+               PMD_DRV_LOG(WARNING, "dev_start not supported in secondary.\n");
+               return -EPERM;
+       }
+
        rc = ena_check_valid_conf(adapter);
        if (rc)
                return rc;
 
+       rc = ena_setup_rx_intr(dev);
+       if (rc)
+               return rc;
+
        rc = ena_queue_start_all(dev, ENA_RING_TYPE_RX);
        if (rc)
                return rc;
@@ -1037,9 +914,8 @@ static int ena_start(struct rte_eth_dev *dev)
        if (rc)
                goto err_start_tx;
 
-       if (adapter->rte_dev->data->dev_conf.rxmode.mq_mode &
-           ETH_MQ_RX_RSS_FLAG && adapter->rte_dev->data->nb_rx_queues > 0) {
-               rc = ena_rss_init_default(adapter);
+       if (adapter->edev_data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
+               rc = ena_rss_configure(adapter);
                if (rc)
                        goto err_rss_init;
        }
@@ -1051,7 +927,7 @@ static int ena_start(struct rte_eth_dev *dev)
 
        ticks = rte_get_timer_hz();
        rte_timer_reset(&adapter->timer_wd, ticks, PERIODICAL, rte_lcore_id(),
-                       ena_timer_wd_callback, adapter);
+                       ena_timer_wd_callback, dev);
 
        ++adapter->dev_stats.dev_start;
        adapter->state = ENA_ADAPTER_STATE_RUNNING;
@@ -1065,12 +941,20 @@ err_start_tx:
        return rc;
 }
 
-static void ena_stop(struct rte_eth_dev *dev)
+static int ena_stop(struct rte_eth_dev *dev)
 {
        struct ena_adapter *adapter = dev->data->dev_private;
        struct ena_com_dev *ena_dev = &adapter->ena_dev;
+       struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
        int rc;
 
+       /* Cannot free memory in secondary process */
+       if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+               PMD_DRV_LOG(WARNING, "dev_stop not supported in secondary.\n");
+               return -EPERM;
+       }
+
        rte_timer_stop_sync(&adapter->timer_wd);
        ena_queue_stop_all(dev, ENA_RING_TYPE_TX);
        ena_queue_stop_all(dev, ENA_RING_TYPE_RX);
@@ -1078,17 +962,32 @@ static void ena_stop(struct rte_eth_dev *dev)
        if (adapter->trigger_reset) {
                rc = ena_com_dev_reset(ena_dev, adapter->reset_reason);
                if (rc)
-                       RTE_LOG(ERR, PMD, "Device reset failed rc=%d\n", rc);
+                       PMD_DRV_LOG(ERR, "Device reset failed, rc: %d\n", rc);
+       }
+
+       rte_intr_disable(intr_handle);
+
+       rte_intr_efd_disable(intr_handle);
+       if (intr_handle->intr_vec != NULL) {
+               rte_free(intr_handle->intr_vec);
+               intr_handle->intr_vec = NULL;
        }
 
+       rte_intr_enable(intr_handle);
+
        ++adapter->dev_stats.dev_stop;
        adapter->state = ENA_ADAPTER_STATE_STOPPED;
+       dev->data->dev_started = 0;
+
+       return 0;
 }
 
-static int ena_create_io_queue(struct ena_ring *ring)
+static int ena_create_io_queue(struct rte_eth_dev *dev, struct ena_ring *ring)
 {
-       struct ena_adapter *adapter;
-       struct ena_com_dev *ena_dev;
+       struct ena_adapter *adapter = ring->adapter;
+       struct ena_com_dev *ena_dev = &adapter->ena_dev;
+       struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
        struct ena_com_create_io_ctx ctx =
                /* policy set to _HOST just to satisfy icc compiler */
                { ENA_ADMIN_PLACEMENT_POLICY_HOST,
@@ -1097,31 +996,29 @@ static int ena_create_io_queue(struct ena_ring *ring)
        unsigned int i;
        int rc;
 
-       adapter = ring->adapter;
-       ena_dev = &adapter->ena_dev;
-
+       ctx.msix_vector = -1;
        if (ring->type == ENA_RING_TYPE_TX) {
                ena_qid = ENA_IO_TXQ_IDX(ring->id);
                ctx.direction = ENA_COM_IO_QUEUE_DIRECTION_TX;
                ctx.mem_queue_type = ena_dev->tx_mem_queue_type;
-               ctx.queue_size = adapter->tx_ring_size;
                for (i = 0; i < ring->ring_size; i++)
                        ring->empty_tx_reqs[i] = i;
        } else {
                ena_qid = ENA_IO_RXQ_IDX(ring->id);
                ctx.direction = ENA_COM_IO_QUEUE_DIRECTION_RX;
-               ctx.queue_size = adapter->rx_ring_size;
+               if (rte_intr_dp_is_en(intr_handle))
+                       ctx.msix_vector = intr_handle->intr_vec[ring->id];
                for (i = 0; i < ring->ring_size; i++)
                        ring->empty_rx_reqs[i] = i;
        }
+       ctx.queue_size = ring->ring_size;
        ctx.qid = ena_qid;
-       ctx.msix_vector = -1; /* interrupts not used */
-       ctx.numa_node = ena_cpu_to_node(ring->id);
+       ctx.numa_node = ring->numa_socket_id;
 
        rc = ena_com_create_io_queue(ena_dev, &ctx);
        if (rc) {
-               RTE_LOG(ERR, PMD,
-                       "failed to create io queue #%d (qid:%d) rc: %d\n",
+               PMD_DRV_LOG(ERR,
+                       "Failed to create IO queue[%d] (qid:%d), rc: %d\n",
                        ring->id, ena_qid, rc);
                return rc;
        }
@@ -1130,8 +1027,8 @@ static int ena_create_io_queue(struct ena_ring *ring)
                                     &ring->ena_com_io_sq,
                                     &ring->ena_com_io_cq);
        if (rc) {
-               RTE_LOG(ERR, PMD,
-                       "Failed to get io queue handlers. queue num %d rc: %d\n",
+               PMD_DRV_LOG(ERR,
+                       "Failed to get IO queue[%d] handlers, rc: %d\n",
                        ring->id, rc);
                ena_com_destroy_io_queue(ena_dev, ena_qid);
                return rc;
@@ -1140,6 +1037,10 @@ static int ena_create_io_queue(struct ena_ring *ring)
        if (ring->type == ENA_RING_TYPE_TX)
                ena_com_update_numa_node(ring->ena_com_io_cq, ctx.numa_node);
 
+       /* Start with Rx interrupts being masked. */
+       if (ring->type == ENA_RING_TYPE_RX && rte_intr_dp_is_en(intr_handle))
+               ena_rx_queue_intr_disable(dev, ring->id);
+
        return 0;
 }
 
@@ -1176,16 +1077,16 @@ static void ena_queue_stop_all(struct rte_eth_dev *dev,
                        ena_queue_stop(&queues[i]);
 }
 
-static int ena_queue_start(struct ena_ring *ring)
+static int ena_queue_start(struct rte_eth_dev *dev, struct ena_ring *ring)
 {
        int rc, bufs_num;
 
        ena_assert_msg(ring->configured == 1,
                       "Trying to start unconfigured queue\n");
 
-       rc = ena_create_io_queue(ring);
+       rc = ena_create_io_queue(dev, ring);
        if (rc) {
-               PMD_INIT_LOG(ERR, "Failed to create IO queue!");
+               PMD_INIT_LOG(ERR, "Failed to create IO queue\n");
                return rc;
        }
 
@@ -1194,7 +1095,7 @@ static int ena_queue_start(struct ena_ring *ring)
 
        if (ring->type == ENA_RING_TYPE_TX) {
                ring->tx_stats.available_desc =
-                       ena_com_free_desc(ring->ena_com_io_sq);
+                       ena_com_free_q_entries(ring->ena_com_io_sq);
                return 0;
        }
 
@@ -1203,9 +1104,13 @@ static int ena_queue_start(struct ena_ring *ring)
        if (rc != bufs_num) {
                ena_com_destroy_io_queue(&ring->adapter->ena_dev,
                                         ENA_IO_RXQ_IDX(ring->id));
-               PMD_INIT_LOG(ERR, "Failed to populate rx ring !");
+               PMD_INIT_LOG(ERR, "Failed to populate Rx ring\n");
                return ENA_COM_FAULT;
        }
+       /* Flush per-core RX buffers pools cache as they can be used on other
+        * cores as well.
+        */
+       rte_mempool_cache_flush(NULL, ring->mb_pool);
 
        return 0;
 }
@@ -1213,7 +1118,7 @@ static int ena_queue_start(struct ena_ring *ring)
 static int ena_tx_queue_setup(struct rte_eth_dev *dev,
                              uint16_t queue_idx,
                              uint16_t nb_desc,
-                             __rte_unused unsigned int socket_id,
+                             unsigned int socket_id,
                              const struct rte_eth_txconf *tx_conf)
 {
        struct ena_ring *txq = NULL;
@@ -1223,40 +1128,41 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev,
        txq = &adapter->tx_ring[queue_idx];
 
        if (txq->configured) {
-               RTE_LOG(CRIT, PMD,
-                       "API violation. Queue %d is already configured\n",
+               PMD_DRV_LOG(CRIT,
+                       "API violation. Queue[%d] is already configured\n",
                        queue_idx);
                return ENA_COM_FAULT;
        }
 
        if (!rte_is_power_of_2(nb_desc)) {
-               RTE_LOG(ERR, PMD,
-                       "Unsupported size of TX queue: %d is not a power of 2.\n",
+               PMD_DRV_LOG(ERR,
+                       "Unsupported size of Tx queue: %d is not a power of 2.\n",
                        nb_desc);
                return -EINVAL;
        }
 
-       if (nb_desc > adapter->tx_ring_size) {
-               RTE_LOG(ERR, PMD,
-                       "Unsupported size of TX queue (max size: %d)\n",
-                       adapter->tx_ring_size);
+       if (nb_desc > adapter->max_tx_ring_size) {
+               PMD_DRV_LOG(ERR,
+                       "Unsupported size of Tx queue (max size: %d)\n",
+                       adapter->max_tx_ring_size);
                return -EINVAL;
        }
 
-       if (nb_desc == RTE_ETH_DEV_FALLBACK_TX_RINGSIZE)
-               nb_desc = adapter->tx_ring_size;
-
        txq->port_id = dev->data->port_id;
        txq->next_to_clean = 0;
        txq->next_to_use = 0;
        txq->ring_size = nb_desc;
+       txq->size_mask = nb_desc - 1;
+       txq->numa_socket_id = socket_id;
+       txq->pkts_without_db = false;
 
        txq->tx_buffer_info = rte_zmalloc("txq->tx_buffer_info",
                                          sizeof(struct ena_tx_buffer) *
                                          txq->ring_size,
                                          RTE_CACHE_LINE_SIZE);
        if (!txq->tx_buffer_info) {
-               RTE_LOG(ERR, PMD, "failed to alloc mem for tx buffer info\n");
+               PMD_DRV_LOG(ERR,
+                       "Failed to allocate memory for Tx buffer info\n");
                return -ENOMEM;
        }
 
@@ -1264,7 +1170,8 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev,
                                         sizeof(u16) * txq->ring_size,
                                         RTE_CACHE_LINE_SIZE);
        if (!txq->empty_tx_reqs) {
-               RTE_LOG(ERR, PMD, "failed to alloc mem for tx reqs\n");
+               PMD_DRV_LOG(ERR,
+                       "Failed to allocate memory for empty Tx requests\n");
                rte_free(txq->tx_buffer_info);
                return -ENOMEM;
        }
@@ -1274,7 +1181,7 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev,
                            txq->tx_max_header_size,
                            RTE_CACHE_LINE_SIZE);
        if (!txq->push_buf_intermediate_buf) {
-               RTE_LOG(ERR, PMD, "failed to alloc push buff for LLQ\n");
+               PMD_DRV_LOG(ERR, "Failed to alloc push buffer for LLQ\n");
                rte_free(txq->tx_buffer_info);
                rte_free(txq->empty_tx_reqs);
                return -ENOMEM;
@@ -1297,36 +1204,43 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev,
 static int ena_rx_queue_setup(struct rte_eth_dev *dev,
                              uint16_t queue_idx,
                              uint16_t nb_desc,
-                             __rte_unused unsigned int socket_id,
-                             __rte_unused const struct rte_eth_rxconf *rx_conf,
+                             unsigned int socket_id,
+                             const struct rte_eth_rxconf *rx_conf,
                              struct rte_mempool *mp)
 {
        struct ena_adapter *adapter = dev->data->dev_private;
        struct ena_ring *rxq = NULL;
+       size_t buffer_size;
        int i;
 
        rxq = &adapter->rx_ring[queue_idx];
        if (rxq->configured) {
-               RTE_LOG(CRIT, PMD,
-                       "API violation. Queue %d is already configured\n",
+               PMD_DRV_LOG(CRIT,
+                       "API violation. Queue[%d] is already configured\n",
                        queue_idx);
                return ENA_COM_FAULT;
        }
 
-       if (nb_desc == RTE_ETH_DEV_FALLBACK_RX_RINGSIZE)
-               nb_desc = adapter->rx_ring_size;
-
        if (!rte_is_power_of_2(nb_desc)) {
-               RTE_LOG(ERR, PMD,
-                       "Unsupported size of RX queue: %d is not a power of 2.\n",
+               PMD_DRV_LOG(ERR,
+                       "Unsupported size of Rx queue: %d is not a power of 2.\n",
                        nb_desc);
                return -EINVAL;
        }
 
-       if (nb_desc > adapter->rx_ring_size) {
-               RTE_LOG(ERR, PMD,
-                       "Unsupported size of RX queue (max size: %d)\n",
-                       adapter->rx_ring_size);
+       if (nb_desc > adapter->max_rx_ring_size) {
+               PMD_DRV_LOG(ERR,
+                       "Unsupported size of Rx queue (max size: %d)\n",
+                       adapter->max_rx_ring_size);
+               return -EINVAL;
+       }
+
+       /* ENA isn't supporting buffers smaller than 1400 bytes */
+       buffer_size = rte_pktmbuf_data_room_size(mp) - RTE_PKTMBUF_HEADROOM;
+       if (buffer_size < ENA_RX_BUF_MIN_SIZE) {
+               PMD_DRV_LOG(ERR,
+                       "Unsupported size of Rx buffer: %zu (min size: %d)\n",
+                       buffer_size, ENA_RX_BUF_MIN_SIZE);
                return -EINVAL;
        }
 
@@ -1334,13 +1248,16 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev,
        rxq->next_to_clean = 0;
        rxq->next_to_use = 0;
        rxq->ring_size = nb_desc;
+       rxq->size_mask = nb_desc - 1;
+       rxq->numa_socket_id = socket_id;
        rxq->mb_pool = mp;
 
        rxq->rx_buffer_info = rte_zmalloc("rxq->buffer_info",
-                                         sizeof(struct rte_mbuf *) * nb_desc,
-                                         RTE_CACHE_LINE_SIZE);
+               sizeof(struct ena_rx_buffer) * nb_desc,
+               RTE_CACHE_LINE_SIZE);
        if (!rxq->rx_buffer_info) {
-               RTE_LOG(ERR, PMD, "failed to alloc mem for rx buffer info\n");
+               PMD_DRV_LOG(ERR,
+                       "Failed to allocate memory for Rx buffer info\n");
                return -ENOMEM;
        }
 
@@ -1349,7 +1266,8 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev,
                                            RTE_CACHE_LINE_SIZE);
 
        if (!rxq->rx_refill_buffer) {
-               RTE_LOG(ERR, PMD, "failed to alloc mem for rx refill buffer\n");
+               PMD_DRV_LOG(ERR,
+                       "Failed to allocate memory for Rx refill buffer\n");
                rte_free(rxq->rx_buffer_info);
                rxq->rx_buffer_info = NULL;
                return -ENOMEM;
@@ -1359,7 +1277,8 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev,
                                         sizeof(uint16_t) * nb_desc,
                                         RTE_CACHE_LINE_SIZE);
        if (!rxq->empty_rx_reqs) {
-               RTE_LOG(ERR, PMD, "failed to alloc mem for empty rx reqs\n");
+               PMD_DRV_LOG(ERR,
+                       "Failed to allocate memory for empty Rx requests\n");
                rte_free(rxq->rx_buffer_info);
                rxq->rx_buffer_info = NULL;
                rte_free(rxq->rx_refill_buffer);
@@ -1370,6 +1289,8 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev,
        for (i = 0; i < nb_desc; i++)
                rxq->empty_rx_reqs[i] = i;
 
+       rxq->offloads = rx_conf->offloads | dev->data->dev_conf.rxmode.offloads;
+
        /* Store pointer to this queue in upper layer */
        rxq->configured = 1;
        dev->data->rx_queues[queue_idx] = rxq;
@@ -1377,75 +1298,83 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev,
        return 0;
 }
 
+static int ena_add_single_rx_desc(struct ena_com_io_sq *io_sq,
+                                 struct rte_mbuf *mbuf, uint16_t id)
+{
+       struct ena_com_buf ebuf;
+       int rc;
+
+       /* prepare physical address for DMA transaction */
+       ebuf.paddr = mbuf->buf_iova + RTE_PKTMBUF_HEADROOM;
+       ebuf.len = mbuf->buf_len - RTE_PKTMBUF_HEADROOM;
+
+       /* pass resource to device */
+       rc = ena_com_add_single_rx_desc(io_sq, &ebuf, id);
+       if (unlikely(rc != 0))
+               PMD_RX_LOG(WARNING, "Failed adding Rx desc\n");
+
+       return rc;
+}
+
 static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count)
 {
        unsigned int i;
        int rc;
-       uint16_t ring_size = rxq->ring_size;
-       uint16_t ring_mask = ring_size - 1;
        uint16_t next_to_use = rxq->next_to_use;
-       uint16_t in_use, req_id;
+       uint16_t req_id;
+#ifdef RTE_ETHDEV_DEBUG_RX
+       uint16_t in_use;
+#endif
        struct rte_mbuf **mbufs = rxq->rx_refill_buffer;
 
        if (unlikely(!count))
                return 0;
 
-       in_use = rxq->next_to_use - rxq->next_to_clean;
-       ena_assert_msg(((in_use + count) < ring_size), "bad ring state\n");
+#ifdef RTE_ETHDEV_DEBUG_RX
+       in_use = rxq->ring_size - 1 -
+               ena_com_free_q_entries(rxq->ena_com_io_sq);
+       if (unlikely((in_use + count) >= rxq->ring_size))
+               PMD_RX_LOG(ERR, "Bad Rx ring state\n");
+#endif
 
        /* get resources for incoming packets */
-       rc = rte_mempool_get_bulk(rxq->mb_pool, (void **)mbufs, count);
+       rc = rte_pktmbuf_alloc_bulk(rxq->mb_pool, mbufs, count);
        if (unlikely(rc < 0)) {
                rte_atomic64_inc(&rxq->adapter->drv_stats->rx_nombuf);
                ++rxq->rx_stats.mbuf_alloc_fail;
-               PMD_RX_LOG(DEBUG, "there are no enough free buffers");
+               PMD_RX_LOG(DEBUG, "There are not enough free buffers\n");
                return 0;
        }
 
        for (i = 0; i < count; i++) {
-               uint16_t next_to_use_masked = next_to_use & ring_mask;
                struct rte_mbuf *mbuf = mbufs[i];
-               struct ena_com_buf ebuf;
+               struct ena_rx_buffer *rx_info;
 
                if (likely((i + 4) < count))
                        rte_prefetch0(mbufs[i + 4]);
 
-               req_id = rxq->empty_rx_reqs[next_to_use_masked];
-               rc = validate_rx_req_id(rxq, req_id);
-               if (unlikely(rc < 0))
-                       break;
-               rxq->rx_buffer_info[req_id] = mbuf;
-
-               /* prepare physical address for DMA transaction */
-               ebuf.paddr = mbuf->buf_iova + RTE_PKTMBUF_HEADROOM;
-               ebuf.len = mbuf->buf_len - RTE_PKTMBUF_HEADROOM;
-               /* pass resource to device */
-               rc = ena_com_add_single_rx_desc(rxq->ena_com_io_sq,
-                                               &ebuf, req_id);
-               if (unlikely(rc)) {
-                       RTE_LOG(WARNING, PMD, "failed adding rx desc\n");
-                       rxq->rx_buffer_info[req_id] = NULL;
+               req_id = rxq->empty_rx_reqs[next_to_use];
+               rx_info = &rxq->rx_buffer_info[req_id];
+
+               rc = ena_add_single_rx_desc(rxq->ena_com_io_sq, mbuf, req_id);
+               if (unlikely(rc != 0))
                        break;
-               }
-               next_to_use++;
+
+               rx_info->mbuf = mbuf;
+               next_to_use = ENA_IDX_NEXT_MASKED(next_to_use, rxq->size_mask);
        }
 
        if (unlikely(i < count)) {
-               RTE_LOG(WARNING, PMD, "refilled rx qid %d with only %d "
-                       "buffers (from %d)\n", rxq->id, i, count);
-               rte_mempool_put_bulk(rxq->mb_pool, (void **)(&mbufs[i]),
-                                    count - i);
+               PMD_RX_LOG(WARNING,
+                       "Refilled Rx queue[%d] with only %d/%d buffers\n",
+                       rxq->id, i, count);
+               rte_pktmbuf_free_bulk(&mbufs[i], count - i);
                ++rxq->rx_stats.refill_partial;
        }
 
        /* When we submitted free recources to device... */
        if (likely(i > 0)) {
-               /* ...let HW know that it can fill buffers with data
-                *
-                * Add memory barrier to make sure the desc were written before
-                * issue a doorbell
-                */
-               rte_wmb();
+               /* ...let HW know that it can fill buffers with data. */
                ena_com_write_sq_doorbell(rxq->ena_com_io_sq);
 
                rxq->next_to_use = next_to_use;
@@ -1455,6 +1384,7 @@ static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count)
 }
 
 static int ena_device_init(struct ena_com_dev *ena_dev,
+                          struct rte_pci_device *pdev,
                           struct ena_com_dev_get_features_ctx *get_feat_ctx,
                           bool *wd_state)
 {
@@ -1465,29 +1395,27 @@ static int ena_device_init(struct ena_com_dev *ena_dev,
        /* Initialize mmio registers */
        rc = ena_com_mmio_reg_read_request_init(ena_dev);
        if (rc) {
-               RTE_LOG(ERR, PMD, "failed to init mmio read less\n");
+               PMD_DRV_LOG(ERR, "Failed to init MMIO read less\n");
                return rc;
        }
 
        /* The PCIe configuration space revision id indicate if mmio reg
         * read is disabled.
         */
-       readless_supported =
-               !(((struct rte_pci_device *)ena_dev->dmadev)->id.class_id
-                              & ENA_MMIO_DISABLE_REG_READ);
+       readless_supported = !(pdev->id.class_id & ENA_MMIO_DISABLE_REG_READ);
        ena_com_set_mmio_read_mode(ena_dev, readless_supported);
 
        /* reset device */
        rc = ena_com_dev_reset(ena_dev, ENA_REGS_RESET_NORMAL);
        if (rc) {
-               RTE_LOG(ERR, PMD, "cannot reset device\n");
+               PMD_DRV_LOG(ERR, "Cannot reset device\n");
                goto err_mmio_read_less;
        }
 
        /* check FW version */
        rc = ena_com_validate_version(ena_dev);
        if (rc) {
-               RTE_LOG(ERR, PMD, "device version is too low\n");
+               PMD_DRV_LOG(ERR, "Device version is too low\n");
                goto err_mmio_read_less;
        }
 
@@ -1496,8 +1424,8 @@ static int ena_device_init(struct ena_com_dev *ena_dev,
        /* ENA device administration layer init */
        rc = ena_com_admin_init(ena_dev, &aenq_handlers);
        if (rc) {
-               RTE_LOG(ERR, PMD,
-                       "cannot initialize ena admin queue with device\n");
+               PMD_DRV_LOG(ERR,
+                       "Cannot initialize ENA admin queue\n");
                goto err_mmio_read_less;
        }
 
@@ -1512,8 +1440,8 @@ static int ena_device_init(struct ena_com_dev *ena_dev,
        /* Get Device Attributes and features */
        rc = ena_com_get_dev_attr_feat(ena_dev, get_feat_ctx);
        if (rc) {
-               RTE_LOG(ERR, PMD,
-                       "cannot get attribute for ena device rc= %d\n", rc);
+               PMD_DRV_LOG(ERR,
+                       "Cannot get attribute for ENA device, rc: %d\n", rc);
                goto err_admin_init;
        }
 
@@ -1526,7 +1454,7 @@ static int ena_device_init(struct ena_com_dev *ena_dev,
        aenq_groups &= get_feat_ctx->aenq.supported_groups;
        rc = ena_com_set_aenq_config(ena_dev, aenq_groups);
        if (rc) {
-               RTE_LOG(ERR, PMD, "Cannot configure aenq groups rc: %d\n", rc);
+               PMD_DRV_LOG(ERR, "Cannot configure AENQ groups, rc: %d\n", rc);
                goto err_admin_init;
        }
 
@@ -1545,12 +1473,13 @@ err_mmio_read_less:
 
 static void ena_interrupt_handler_rte(void *cb_arg)
 {
-       struct ena_adapter *adapter = cb_arg;
+       struct rte_eth_dev *dev = cb_arg;
+       struct ena_adapter *adapter = dev->data->dev_private;
        struct ena_com_dev *ena_dev = &adapter->ena_dev;
 
        ena_com_admin_q_comp_intr_handler(ena_dev);
        if (likely(adapter->state != ENA_ADAPTER_STATE_CLOSED))
-               ena_com_aenq_intr_handler(ena_dev, adapter);
+               ena_com_aenq_intr_handler(ena_dev, dev);
 }
 
 static void check_for_missing_keep_alive(struct ena_adapter *adapter)
@@ -1563,7 +1492,7 @@ static void check_for_missing_keep_alive(struct ena_adapter *adapter)
 
        if (unlikely((rte_get_timer_cycles() - adapter->timestamp_wd) >=
            adapter->keep_alive_timeout)) {
-               RTE_LOG(ERR, PMD, "Keep alive timeout\n");
+               PMD_DRV_LOG(ERR, "Keep alive timeout\n");
                adapter->reset_reason = ENA_REGS_RESET_KEEP_ALIVE_TO;
                adapter->trigger_reset = true;
                ++adapter->dev_stats.wd_expired;
@@ -1574,7 +1503,7 @@ static void check_for_missing_keep_alive(struct ena_adapter *adapter)
 static void check_for_admin_com_state(struct ena_adapter *adapter)
 {
        if (unlikely(!ena_com_get_admin_running_state(&adapter->ena_dev))) {
-               RTE_LOG(ERR, PMD, "ENA admin queue is not in running state!\n");
+               PMD_DRV_LOG(ERR, "ENA admin queue is not in running state\n");
                adapter->reset_reason = ENA_REGS_RESET_ADMIN_TO;
                adapter->trigger_reset = true;
        }
@@ -1583,28 +1512,39 @@ static void check_for_admin_com_state(struct ena_adapter *adapter)
 static void ena_timer_wd_callback(__rte_unused struct rte_timer *timer,
                                  void *arg)
 {
-       struct ena_adapter *adapter = arg;
-       struct rte_eth_dev *dev = adapter->rte_dev;
+       struct rte_eth_dev *dev = arg;
+       struct ena_adapter *adapter = dev->data->dev_private;
 
        check_for_missing_keep_alive(adapter);
        check_for_admin_com_state(adapter);
 
        if (unlikely(adapter->trigger_reset)) {
-               RTE_LOG(ERR, PMD, "Trigger reset is on\n");
-               _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_RESET,
+               PMD_DRV_LOG(ERR, "Trigger reset is on\n");
+               rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_RESET,
                        NULL);
        }
 }
 
 static inline void
-set_default_llq_configurations(struct ena_llq_configurations *llq_config)
+set_default_llq_configurations(struct ena_llq_configurations *llq_config,
+                              struct ena_admin_feature_llq_desc *llq,
+                              bool use_large_llq_hdr)
 {
        llq_config->llq_header_location = ENA_ADMIN_INLINE_HEADER;
-       llq_config->llq_ring_entry_size = ENA_ADMIN_LIST_ENTRY_SIZE_128B;
        llq_config->llq_stride_ctrl = ENA_ADMIN_MULTIPLE_DESCS_PER_ENTRY;
        llq_config->llq_num_decs_before_header =
                ENA_ADMIN_LLQ_NUM_DESCS_BEFORE_HEADER_2;
-       llq_config->llq_ring_entry_size_value = 128;
+
+       if (use_large_llq_hdr &&
+           (llq->entry_size_ctrl_supported & ENA_ADMIN_LIST_ENTRY_SIZE_256B)) {
+               llq_config->llq_ring_entry_size =
+                       ENA_ADMIN_LIST_ENTRY_SIZE_256B;
+               llq_config->llq_ring_entry_size_value = 256;
+       } else {
+               llq_config->llq_ring_entry_size =
+                       ENA_ADMIN_LIST_ENTRY_SIZE_128B;
+               llq_config->llq_ring_entry_size_value = 128;
+       }
 }
 
 static int
@@ -1618,7 +1558,7 @@ ena_set_queues_placement_policy(struct ena_adapter *adapter,
 
        llq_feature_mask = 1 << ENA_ADMIN_LLQ;
        if (!(ena_dev->supported_features & llq_feature_mask)) {
-               RTE_LOG(INFO, PMD,
+               PMD_DRV_LOG(INFO,
                        "LLQ is not supported. Fallback to host mode policy.\n");
                ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
                return 0;
@@ -1626,8 +1566,8 @@ ena_set_queues_placement_policy(struct ena_adapter *adapter,
 
        rc = ena_com_config_dev_mode(ena_dev, llq, llq_default_configurations);
        if (unlikely(rc)) {
-               PMD_INIT_LOG(WARNING, "Failed to config dev mode. "
-                       "Fallback to host mode policy.");
+               PMD_INIT_LOG(WARNING,
+                       "Failed to config dev mode. Fallback to host mode policy.\n");
                ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
                return 0;
        }
@@ -1637,8 +1577,8 @@ ena_set_queues_placement_policy(struct ena_adapter *adapter,
                return 0;
 
        if (!adapter->dev_mem_base) {
-               RTE_LOG(ERR, PMD, "Unable to access LLQ bar resource. "
-                       "Fallback to host mode policy.\n.");
+               PMD_DRV_LOG(ERR,
+                       "Unable to access LLQ BAR resource. Fallback to host mode policy.\n");
                ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
                return 0;
        }
@@ -1648,10 +1588,10 @@ ena_set_queues_placement_policy(struct ena_adapter *adapter,
        return 0;
 }
 
-static int ena_calc_io_queue_num(struct ena_com_dev *ena_dev,
-                                struct ena_com_dev_get_features_ctx *get_feat_ctx)
+static uint32_t ena_calc_max_io_queue_num(struct ena_com_dev *ena_dev,
+       struct ena_com_dev_get_features_ctx *get_feat_ctx)
 {
-       uint32_t io_tx_sq_num, io_tx_cq_num, io_rx_num, io_queue_num;
+       uint32_t io_tx_sq_num, io_tx_cq_num, io_rx_num, max_num_io_queues;
 
        /* Regular queues capabilities */
        if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
@@ -1673,16 +1613,16 @@ static int ena_calc_io_queue_num(struct ena_com_dev *ena_dev,
        if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV)
                io_tx_sq_num = get_feat_ctx->llq.max_llq_num;
 
-       io_queue_num = RTE_MIN(ENA_MAX_NUM_IO_QUEUES, io_rx_num);
-       io_queue_num = RTE_MIN(io_queue_num, io_tx_sq_num);
-       io_queue_num = RTE_MIN(io_queue_num, io_tx_cq_num);
+       max_num_io_queues = RTE_MIN(ENA_MAX_NUM_IO_QUEUES, io_rx_num);
+       max_num_io_queues = RTE_MIN(max_num_io_queues, io_tx_sq_num);
+       max_num_io_queues = RTE_MIN(max_num_io_queues, io_tx_cq_num);
 
-       if (unlikely(io_queue_num == 0)) {
-               RTE_LOG(ERR, PMD, "Number of IO queues should not be 0\n");
+       if (unlikely(max_num_io_queues == 0)) {
+               PMD_DRV_LOG(ERR, "Number of IO queues cannot not be 0\n");
                return -EFAULT;
        }
 
-       return io_queue_num;
+       return max_num_io_queues;
 }
 
 static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
@@ -1695,10 +1635,11 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
        struct ena_com_dev_get_features_ctx get_feat_ctx;
        struct ena_llq_configurations llq_config;
        const char *queue_type_str;
+       uint32_t max_num_io_queues;
        int rc;
-
        static int adapters_found;
-       bool wd_state;
+       bool disable_meta_caching;
+       bool wd_state = false;
 
        eth_dev->dev_ops = &ena_dev_ops;
        eth_dev->rx_pkt_burst = &eth_ena_recv_pkts;
@@ -1708,16 +1649,16 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
        if (rte_eal_process_type() != RTE_PROC_PRIMARY)
                return 0;
 
+       eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
+
        memset(adapter, 0, sizeof(struct ena_adapter));
        ena_dev = &adapter->ena_dev;
 
-       adapter->rte_eth_dev_data = eth_dev->data;
-       adapter->rte_dev = eth_dev;
+       adapter->edev_data = eth_dev->data;
 
        pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
-       adapter->pdev = pci_dev;
 
-       PMD_INIT_LOG(INFO, "Initializing %x:%x:%x.%d",
+       PMD_INIT_LOG(INFO, "Initializing %x:%x:%x.%d\n",
                     pci_dev->addr.domain,
                     pci_dev->addr.bus,
                     pci_dev->addr.devid,
@@ -1729,32 +1670,40 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
        adapter->dev_mem_base = pci_dev->mem_resource[ENA_MEM_BAR].addr;
 
        if (!adapter->regs) {
-               PMD_INIT_LOG(CRIT, "Failed to access registers BAR(%d)",
+               PMD_INIT_LOG(CRIT, "Failed to access registers BAR(%d)\n",
                             ENA_REGS_BAR);
                return -ENXIO;
        }
 
        ena_dev->reg_bar = adapter->regs;
-       ena_dev->dmadev = adapter->pdev;
+       /* This is a dummy pointer for ena_com functions. */
+       ena_dev->dmadev = adapter;
 
        adapter->id_number = adapters_found;
 
        snprintf(adapter->name, ENA_NAME_MAX_LEN, "ena_%d",
                 adapter->id_number);
 
+       rc = ena_parse_devargs(adapter, pci_dev->device.devargs);
+       if (rc != 0) {
+               PMD_INIT_LOG(CRIT, "Failed to parse devargs\n");
+               goto err;
+       }
+
        /* device specific initialization routine */
-       rc = ena_device_init(ena_dev, &get_feat_ctx, &wd_state);
+       rc = ena_device_init(ena_dev, pci_dev, &get_feat_ctx, &wd_state);
        if (rc) {
-               PMD_INIT_LOG(CRIT, "Failed to init ENA device");
+               PMD_INIT_LOG(CRIT, "Failed to init ENA device\n");
                goto err;
        }
        adapter->wd_state = wd_state;
 
-       set_default_llq_configurations(&llq_config);
+       set_default_llq_configurations(&llq_config, &get_feat_ctx.llq,
+               adapter->use_large_llq_hdr);
        rc = ena_set_queues_placement_policy(adapter, ena_dev,
                                             &get_feat_ctx.llq, &llq_config);
        if (unlikely(rc)) {
-               PMD_INIT_LOG(CRIT, "Failed to set placement policy");
+               PMD_INIT_LOG(CRIT, "Failed to set placement policy\n");
                return rc;
        }
 
@@ -1762,27 +1711,35 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
                queue_type_str = "Regular";
        else
                queue_type_str = "Low latency";
-       RTE_LOG(INFO, PMD, "Placement policy: %s\n", queue_type_str);
+       PMD_DRV_LOG(INFO, "Placement policy: %s\n", queue_type_str);
 
        calc_queue_ctx.ena_dev = ena_dev;
        calc_queue_ctx.get_feat_ctx = &get_feat_ctx;
-       adapter->num_queues = ena_calc_io_queue_num(ena_dev,
-                                                   &get_feat_ctx);
 
-       rc = ena_calc_queue_size(&calc_queue_ctx);
-       if (unlikely((rc != 0) || (adapter->num_queues <= 0))) {
+       max_num_io_queues = ena_calc_max_io_queue_num(ena_dev, &get_feat_ctx);
+       rc = ena_calc_io_queue_size(&calc_queue_ctx,
+               adapter->use_large_llq_hdr);
+       if (unlikely((rc != 0) || (max_num_io_queues == 0))) {
                rc = -EFAULT;
                goto err_device_destroy;
        }
 
-       adapter->tx_ring_size = calc_queue_ctx.tx_queue_size;
-       adapter->rx_ring_size = calc_queue_ctx.rx_queue_size;
-
+       adapter->max_tx_ring_size = calc_queue_ctx.max_tx_queue_size;
+       adapter->max_rx_ring_size = calc_queue_ctx.max_rx_queue_size;
        adapter->max_tx_sgl_size = calc_queue_ctx.max_tx_sgl_size;
        adapter->max_rx_sgl_size = calc_queue_ctx.max_rx_sgl_size;
+       adapter->max_num_io_queues = max_num_io_queues;
+
+       if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
+               disable_meta_caching =
+                       !!(get_feat_ctx.llq.accel_mode.u.get.supported_flags &
+                       BIT(ENA_ADMIN_DISABLE_META_CACHING));
+       } else {
+               disable_meta_caching = false;
+       }
 
        /* prepare ring structures */
-       ena_init_rings(adapter);
+       ena_init_rings(adapter, disable_meta_caching);
 
        ena_config_debug_area(adapter);
 
@@ -1797,6 +1754,9 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
        adapter->offloads.rx_csum_supported =
                (get_feat_ctx.offload.rx_supported &
                ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK) != 0;
+       adapter->offloads.rss_hash_supported =
+               (get_feat_ctx.offload.rx_supported &
+               ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_HASH_MASK) != 0;
 
        /* Copy MAC address and point DPDK to it */
        eth_dev->data->mac_addrs = (struct rte_ether_addr *)adapter->mac_addr;
@@ -1804,24 +1764,27 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
                        get_feat_ctx.dev_attr.mac_addr,
                        (struct rte_ether_addr *)adapter->mac_addr);
 
-       /*
-        * Pass the information to the rte_eth_dev_close() that it should also
-        * release the private port resources.
-        */
-       eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
+       rc = ena_com_rss_init(ena_dev, ENA_RX_RSS_TABLE_LOG_SIZE);
+       if (unlikely(rc != 0)) {
+               PMD_DRV_LOG(ERR, "Failed to initialize RSS in ENA device\n");
+               goto err_delete_debug_area;
+       }
 
        adapter->drv_stats = rte_zmalloc("adapter stats",
                                         sizeof(*adapter->drv_stats),
                                         RTE_CACHE_LINE_SIZE);
        if (!adapter->drv_stats) {
-               RTE_LOG(ERR, PMD, "failed to alloc mem for adapter stats\n");
+               PMD_DRV_LOG(ERR,
+                       "Failed to allocate memory for adapter statistics\n");
                rc = -ENOMEM;
-               goto err_delete_debug_area;
+               goto err_rss_destroy;
        }
 
+       rte_spinlock_init(&adapter->admin_lock);
+
        rte_intr_callback_register(intr_handle,
                                   ena_interrupt_handler_rte,
-                                  adapter);
+                                  eth_dev);
        rte_intr_enable(intr_handle);
        ena_com_set_admin_polling_mode(ena_dev, false);
        ena_com_admin_aenq_enable(ena_dev);
@@ -1835,6 +1798,8 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
 
        return 0;
 
+err_rss_destroy:
+       ena_com_rss_destroy(ena_dev);
 err_delete_debug_area:
        ena_com_delete_debug_area(ena_dev);
 
@@ -1859,6 +1824,8 @@ static void ena_destroy_device(struct rte_eth_dev *eth_dev)
        if (adapter->state != ENA_ADAPTER_STATE_CLOSED)
                ena_close(eth_dev);
 
+       ena_com_rss_destroy(ena_dev);
+
        ena_com_delete_debug_area(ena_dev);
        ena_com_delete_host_info(ena_dev);
 
@@ -1877,11 +1844,6 @@ static int eth_ena_dev_uninit(struct rte_eth_dev *eth_dev)
 
        ena_destroy_device(eth_dev);
 
-       eth_dev->dev_ops = NULL;
-       eth_dev->rx_pkt_burst = NULL;
-       eth_dev->tx_pkt_burst = NULL;
-       eth_dev->tx_pkt_prepare = NULL;
-
        return 0;
 }
 
@@ -1891,16 +1853,21 @@ static int ena_dev_configure(struct rte_eth_dev *dev)
 
        adapter->state = ENA_ADAPTER_STATE_CONFIG;
 
+       if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
+               dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
+       dev->data->dev_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
+
        adapter->tx_selected_offloads = dev->data->dev_conf.txmode.offloads;
        adapter->rx_selected_offloads = dev->data->dev_conf.rxmode.offloads;
        return 0;
 }
 
-static void ena_init_rings(struct ena_adapter *adapter)
+static void ena_init_rings(struct ena_adapter *adapter,
+                          bool disable_meta_caching)
 {
-       int i;
+       size_t i;
 
-       for (i = 0; i < adapter->num_queues; i++) {
+       for (i = 0; i < adapter->max_num_io_queues; i++) {
                struct ena_ring *ring = &adapter->tx_ring[i];
 
                ring->configured = 0;
@@ -1910,9 +1877,10 @@ static void ena_init_rings(struct ena_adapter *adapter)
                ring->tx_mem_queue_type = adapter->ena_dev.tx_mem_queue_type;
                ring->tx_max_header_size = adapter->ena_dev.tx_max_header_size;
                ring->sgl_size = adapter->max_tx_sgl_size;
+               ring->disable_meta_caching = disable_meta_caching;
        }
 
-       for (i = 0; i < adapter->num_queues; i++) {
+       for (i = 0; i < adapter->max_num_io_queues; i++) {
                struct ena_ring *ring = &adapter->rx_ring[i];
 
                ring->configured = 0;
@@ -1923,7 +1891,7 @@ static void ena_init_rings(struct ena_adapter *adapter)
        }
 }
 
-static void ena_infos_get(struct rte_eth_dev *dev,
+static int ena_infos_get(struct rte_eth_dev *dev,
                          struct rte_eth_dev_info *dev_info)
 {
        struct ena_adapter *adapter;
@@ -1962,155 +1930,250 @@ static void ena_infos_get(struct rte_eth_dev *dev,
                        DEV_RX_OFFLOAD_TCP_CKSUM;
 
        rx_feat |= DEV_RX_OFFLOAD_JUMBO_FRAME;
+       tx_feat |= DEV_TX_OFFLOAD_MULTI_SEGS;
 
        /* Inform framework about available features */
        dev_info->rx_offload_capa = rx_feat;
+       if (adapter->offloads.rss_hash_supported)
+               dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_RSS_HASH;
        dev_info->rx_queue_offload_capa = rx_feat;
        dev_info->tx_offload_capa = tx_feat;
        dev_info->tx_queue_offload_capa = tx_feat;
 
-       dev_info->flow_type_rss_offloads = ETH_RSS_IP | ETH_RSS_TCP |
-                                          ETH_RSS_UDP;
+       dev_info->flow_type_rss_offloads = ENA_ALL_RSS_HF;
+       dev_info->hash_key_size = ENA_HASH_KEY_SIZE;
 
        dev_info->min_rx_bufsize = ENA_MIN_FRAME_LEN;
        dev_info->max_rx_pktlen  = adapter->max_mtu;
        dev_info->max_mac_addrs = 1;
 
-       dev_info->max_rx_queues = adapter->num_queues;
-       dev_info->max_tx_queues = adapter->num_queues;
+       dev_info->max_rx_queues = adapter->max_num_io_queues;
+       dev_info->max_tx_queues = adapter->max_num_io_queues;
        dev_info->reta_size = ENA_RX_RSS_TABLE_SIZE;
 
        adapter->tx_supported_offloads = tx_feat;
        adapter->rx_supported_offloads = rx_feat;
 
-       dev_info->rx_desc_lim.nb_max = adapter->rx_ring_size;
+       dev_info->rx_desc_lim.nb_max = adapter->max_rx_ring_size;
        dev_info->rx_desc_lim.nb_min = ENA_MIN_RING_DESC;
        dev_info->rx_desc_lim.nb_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
                                        adapter->max_rx_sgl_size);
        dev_info->rx_desc_lim.nb_mtu_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
                                        adapter->max_rx_sgl_size);
 
-       dev_info->tx_desc_lim.nb_max = adapter->tx_ring_size;
+       dev_info->tx_desc_lim.nb_max = adapter->max_tx_ring_size;
        dev_info->tx_desc_lim.nb_min = ENA_MIN_RING_DESC;
        dev_info->tx_desc_lim.nb_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
                                        adapter->max_tx_sgl_size);
        dev_info->tx_desc_lim.nb_mtu_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
                                        adapter->max_tx_sgl_size);
+
+       dev_info->default_rxportconf.ring_size = ENA_DEFAULT_RING_SIZE;
+       dev_info->default_txportconf.ring_size = ENA_DEFAULT_RING_SIZE;
+
+       return 0;
+}
+
+static inline void ena_init_rx_mbuf(struct rte_mbuf *mbuf, uint16_t len)
+{
+       mbuf->data_len = len;
+       mbuf->data_off = RTE_PKTMBUF_HEADROOM;
+       mbuf->refcnt = 1;
+       mbuf->next = NULL;
+}
+
+static struct rte_mbuf *ena_rx_mbuf(struct ena_ring *rx_ring,
+                                   struct ena_com_rx_buf_info *ena_bufs,
+                                   uint32_t descs,
+                                   uint16_t *next_to_clean,
+                                   uint8_t offset)
+{
+       struct rte_mbuf *mbuf;
+       struct rte_mbuf *mbuf_head;
+       struct ena_rx_buffer *rx_info;
+       int rc;
+       uint16_t ntc, len, req_id, buf = 0;
+
+       if (unlikely(descs == 0))
+               return NULL;
+
+       ntc = *next_to_clean;
+
+       len = ena_bufs[buf].len;
+       req_id = ena_bufs[buf].req_id;
+
+       rx_info = &rx_ring->rx_buffer_info[req_id];
+
+       mbuf = rx_info->mbuf;
+       RTE_ASSERT(mbuf != NULL);
+
+       ena_init_rx_mbuf(mbuf, len);
+
+       /* Fill the mbuf head with the data specific for 1st segment. */
+       mbuf_head = mbuf;
+       mbuf_head->nb_segs = descs;
+       mbuf_head->port = rx_ring->port_id;
+       mbuf_head->pkt_len = len;
+       mbuf_head->data_off += offset;
+
+       rx_info->mbuf = NULL;
+       rx_ring->empty_rx_reqs[ntc] = req_id;
+       ntc = ENA_IDX_NEXT_MASKED(ntc, rx_ring->size_mask);
+
+       while (--descs) {
+               ++buf;
+               len = ena_bufs[buf].len;
+               req_id = ena_bufs[buf].req_id;
+
+               rx_info = &rx_ring->rx_buffer_info[req_id];
+               RTE_ASSERT(rx_info->mbuf != NULL);
+
+               if (unlikely(len == 0)) {
+                       /*
+                        * Some devices can pass descriptor with the length 0.
+                        * To avoid confusion, the PMD is simply putting the
+                        * descriptor back, as it was never used. We'll avoid
+                        * mbuf allocation that way.
+                        */
+                       rc = ena_add_single_rx_desc(rx_ring->ena_com_io_sq,
+                               rx_info->mbuf, req_id);
+                       if (unlikely(rc != 0)) {
+                               /* Free the mbuf in case of an error. */
+                               rte_mbuf_raw_free(rx_info->mbuf);
+                       } else {
+                               /*
+                                * If there was no error, just exit the loop as
+                                * 0 length descriptor is always the last one.
+                                */
+                               break;
+                       }
+               } else {
+                       /* Create an mbuf chain. */
+                       mbuf->next = rx_info->mbuf;
+                       mbuf = mbuf->next;
+
+                       ena_init_rx_mbuf(mbuf, len);
+                       mbuf_head->pkt_len += len;
+               }
+
+               /*
+                * Mark the descriptor as depleted and perform necessary
+                * cleanup.
+                * This code will execute in two cases:
+                *  1. Descriptor len was greater than 0 - normal situation.
+                *  2. Descriptor len was 0 and we failed to add the descriptor
+                *     to the device. In that situation, we should try to add
+                *     the mbuf again in the populate routine and mark the
+                *     descriptor as used up by the device.
+                */
+               rx_info->mbuf = NULL;
+               rx_ring->empty_rx_reqs[ntc] = req_id;
+               ntc = ENA_IDX_NEXT_MASKED(ntc, rx_ring->size_mask);
+       }
+
+       *next_to_clean = ntc;
+
+       return mbuf_head;
 }
 
 static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
                                  uint16_t nb_pkts)
 {
        struct ena_ring *rx_ring = (struct ena_ring *)(rx_queue);
-       unsigned int ring_size = rx_ring->ring_size;
-       unsigned int ring_mask = ring_size - 1;
+       unsigned int free_queue_entries;
+       unsigned int refill_threshold;
        uint16_t next_to_clean = rx_ring->next_to_clean;
-       uint16_t desc_in_use = 0;
-       uint16_t req_id;
-       unsigned int recv_idx = 0;
-       struct rte_mbuf *mbuf = NULL;
-       struct rte_mbuf *mbuf_head = NULL;
-       struct rte_mbuf *mbuf_prev = NULL;
-       struct rte_mbuf **rx_buff_info = rx_ring->rx_buffer_info;
-       unsigned int completed;
-
+       uint16_t descs_in_use;
+       struct rte_mbuf *mbuf;
+       uint16_t completed;
        struct ena_com_rx_ctx ena_rx_ctx;
-       int rc = 0;
+       int i, rc = 0;
+       bool fill_hash;
 
+#ifdef RTE_ETHDEV_DEBUG_RX
        /* Check adapter state */
        if (unlikely(rx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) {
-               RTE_LOG(ALERT, PMD,
+               PMD_RX_LOG(ALERT,
                        "Trying to receive pkts while device is NOT running\n");
                return 0;
        }
+#endif
 
-       desc_in_use = rx_ring->next_to_use - next_to_clean;
-       if (unlikely(nb_pkts > desc_in_use))
-               nb_pkts = desc_in_use;
+       fill_hash = rx_ring->offloads & DEV_RX_OFFLOAD_RSS_HASH;
 
-       for (completed = 0; completed < nb_pkts; completed++) {
-               int segments = 0;
+       descs_in_use = rx_ring->ring_size -
+               ena_com_free_q_entries(rx_ring->ena_com_io_sq) - 1;
+       nb_pkts = RTE_MIN(descs_in_use, nb_pkts);
 
+       for (completed = 0; completed < nb_pkts; completed++) {
                ena_rx_ctx.max_bufs = rx_ring->sgl_size;
                ena_rx_ctx.ena_bufs = rx_ring->ena_bufs;
                ena_rx_ctx.descs = 0;
+               ena_rx_ctx.pkt_offset = 0;
                /* receive packet context */
                rc = ena_com_rx_pkt(rx_ring->ena_com_io_cq,
                                    rx_ring->ena_com_io_sq,
                                    &ena_rx_ctx);
                if (unlikely(rc)) {
-                       RTE_LOG(ERR, PMD, "ena_com_rx_pkt error %d\n", rc);
-                       rx_ring->adapter->reset_reason =
-                               ENA_REGS_RESET_TOO_MANY_RX_DESCS;
+                       PMD_RX_LOG(ERR,
+                               "Failed to get the packet from the device, rc: %d\n",
+                               rc);
+                       if (rc == ENA_COM_NO_SPACE) {
+                               ++rx_ring->rx_stats.bad_desc_num;
+                               rx_ring->adapter->reset_reason =
+                                       ENA_REGS_RESET_TOO_MANY_RX_DESCS;
+                       } else {
+                               ++rx_ring->rx_stats.bad_req_id;
+                               rx_ring->adapter->reset_reason =
+                                       ENA_REGS_RESET_INV_RX_REQ_ID;
+                       }
                        rx_ring->adapter->trigger_reset = true;
-                       ++rx_ring->rx_stats.bad_desc_num;
                        return 0;
                }
 
-               if (unlikely(ena_rx_ctx.descs == 0))
-                       break;
-
-               while (segments < ena_rx_ctx.descs) {
-                       req_id = ena_rx_ctx.ena_bufs[segments].req_id;
-                       rc = validate_rx_req_id(rx_ring, req_id);
-                       if (unlikely(rc)) {
-                               if (segments != 0)
-                                       rte_mbuf_raw_free(mbuf_head);
-                               break;
-                       }
-
-                       mbuf = rx_buff_info[req_id];
-                       rx_buff_info[req_id] = NULL;
-                       mbuf->data_len = ena_rx_ctx.ena_bufs[segments].len;
-                       mbuf->data_off = RTE_PKTMBUF_HEADROOM;
-                       mbuf->refcnt = 1;
-                       mbuf->next = NULL;
-                       if (unlikely(segments == 0)) {
-                               mbuf->nb_segs = ena_rx_ctx.descs;
-                               mbuf->port = rx_ring->port_id;
-                               mbuf->pkt_len = 0;
-                               mbuf_head = mbuf;
-                       } else {
-                               /* for multi-segment pkts create mbuf chain */
-                               mbuf_prev->next = mbuf;
+               mbuf = ena_rx_mbuf(rx_ring,
+                       ena_rx_ctx.ena_bufs,
+                       ena_rx_ctx.descs,
+                       &next_to_clean,
+                       ena_rx_ctx.pkt_offset);
+               if (unlikely(mbuf == NULL)) {
+                       for (i = 0; i < ena_rx_ctx.descs; ++i) {
+                               rx_ring->empty_rx_reqs[next_to_clean] =
+                                       rx_ring->ena_bufs[i].req_id;
+                               next_to_clean = ENA_IDX_NEXT_MASKED(
+                                       next_to_clean, rx_ring->size_mask);
                        }
-                       mbuf_head->pkt_len += mbuf->data_len;
-
-                       mbuf_prev = mbuf;
-                       rx_ring->empty_rx_reqs[next_to_clean & ring_mask] =
-                               req_id;
-                       segments++;
-                       next_to_clean++;
-               }
-               if (unlikely(rc))
                        break;
+               }
 
                /* fill mbuf attributes if any */
-               ena_rx_mbuf_prepare(mbuf_head, &ena_rx_ctx);
+               ena_rx_mbuf_prepare(mbuf, &ena_rx_ctx, fill_hash);
 
-               if (unlikely(mbuf_head->ol_flags &
-                       (PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD)))
+               if (unlikely(mbuf->ol_flags &
+                               (RTE_MBUF_F_RX_IP_CKSUM_BAD | RTE_MBUF_F_RX_L4_CKSUM_BAD))) {
+                       rte_atomic64_inc(&rx_ring->adapter->drv_stats->ierrors);
                        ++rx_ring->rx_stats.bad_csum;
+               }
 
-               mbuf_head->hash.rss = ena_rx_ctx.hash;
-
-               /* pass to DPDK application head mbuf */
-               rx_pkts[recv_idx] = mbuf_head;
-               recv_idx++;
-               rx_ring->rx_stats.bytes += mbuf_head->pkt_len;
+               rx_pkts[completed] = mbuf;
+               rx_ring->rx_stats.bytes += mbuf->pkt_len;
        }
 
-       rx_ring->rx_stats.cnt += recv_idx;
+       rx_ring->rx_stats.cnt += completed;
        rx_ring->next_to_clean = next_to_clean;
 
-       desc_in_use = desc_in_use - completed + 1;
+       free_queue_entries = ena_com_free_q_entries(rx_ring->ena_com_io_sq);
+       refill_threshold =
+               RTE_MIN(rx_ring->ring_size / ENA_REFILL_THRESH_DIVIDER,
+               (unsigned int)ENA_REFILL_THRESH_PACKET);
+
        /* Burst refill to save doorbells, memory barriers, const interval */
-       if (ring_size - desc_in_use > ENA_RING_DESCS_RATIO(ring_size)) {
+       if (free_queue_entries > refill_threshold) {
                ena_com_update_dev_comp_head(rx_ring->ena_com_io_cq);
-               ena_populate_rx_queue(rx_ring, ring_size - desc_in_use);
+               ena_populate_rx_queue(rx_ring, free_queue_entries);
        }
 
-       return recv_idx;
+       return completed;
 }
 
 static uint16_t
@@ -2129,7 +2192,7 @@ eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
                m = tx_pkts[i];
                ol_flags = m->ol_flags;
 
-               if (!(ol_flags & PKT_TX_IPV4))
+               if (!(ol_flags & RTE_MBUF_F_TX_IPV4))
                        continue;
 
                /* If there was not L2 header length specified, assume it is
@@ -2153,8 +2216,8 @@ eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
                }
 
                if ((ol_flags & ENA_TX_OFFLOAD_NOTSUP_MASK) != 0 ||
-                               (ol_flags & PKT_TX_L4_MASK) ==
-                               PKT_TX_SCTP_CKSUM) {
+                               (ol_flags & RTE_MBUF_F_TX_L4_MASK) ==
+                               RTE_MBUF_F_TX_SCTP_CKSUM) {
                        rte_errno = ENOTSUP;
                        return i;
                }
@@ -2173,7 +2236,7 @@ eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
                 */
 
                ret = rte_net_intel_cksum_flags_prepare(m,
-                       ol_flags & ~PKT_TX_TCP_SEG);
+                       ol_flags & ~RTE_MBUF_F_TX_TCP_SEG);
                if (ret != 0) {
                        rte_errno = -ret;
                        return i;
@@ -2206,8 +2269,8 @@ static void ena_update_hints(struct ena_adapter *adapter,
        }
 }
 
-static int ena_check_and_linearize_mbuf(struct ena_ring *tx_ring,
-                                       struct rte_mbuf *mbuf)
+static int ena_check_space_and_linearize_mbuf(struct ena_ring *tx_ring,
+                                             struct rte_mbuf *mbuf)
 {
        struct ena_com_dev *ena_dev;
        int num_segments, header_len, rc;
@@ -2217,218 +2280,296 @@ static int ena_check_and_linearize_mbuf(struct ena_ring *tx_ring,
        header_len = mbuf->data_len;
 
        if (likely(num_segments < tx_ring->sgl_size))
-               return 0;
+               goto checkspace;
 
        if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV &&
            (num_segments == tx_ring->sgl_size) &&
            (header_len < tx_ring->tx_max_header_size))
-               return 0;
+               goto checkspace;
 
+       /* Checking for space for 2 additional metadata descriptors due to
+        * possible header split and metadata descriptor. Linearization will
+        * be needed so we reduce the segments number from num_segments to 1
+        */
+       if (!ena_com_sq_have_enough_space(tx_ring->ena_com_io_sq, 3)) {
+               PMD_TX_LOG(DEBUG, "Not enough space in the Tx queue\n");
+               return ENA_COM_NO_MEM;
+       }
        ++tx_ring->tx_stats.linearize;
        rc = rte_pktmbuf_linearize(mbuf);
        if (unlikely(rc)) {
-               RTE_LOG(WARNING, PMD, "Mbuf linearize failed\n");
+               PMD_TX_LOG(WARNING, "Mbuf linearize failed\n");
                rte_atomic64_inc(&tx_ring->adapter->drv_stats->ierrors);
                ++tx_ring->tx_stats.linearize_failed;
                return rc;
        }
 
-       return rc;
+       return 0;
+
+checkspace:
+       /* Checking for space for 2 additional metadata descriptors due to
+        * possible header split and metadata descriptor
+        */
+       if (!ena_com_sq_have_enough_space(tx_ring->ena_com_io_sq,
+                                         num_segments + 2)) {
+               PMD_TX_LOG(DEBUG, "Not enough space in the Tx queue\n");
+               return ENA_COM_NO_MEM;
+       }
+
+       return 0;
 }
 
-static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
-                                 uint16_t nb_pkts)
+static void ena_tx_map_mbuf(struct ena_ring *tx_ring,
+       struct ena_tx_buffer *tx_info,
+       struct rte_mbuf *mbuf,
+       void **push_header,
+       uint16_t *header_len)
 {
-       struct ena_ring *tx_ring = (struct ena_ring *)(tx_queue);
-       uint16_t next_to_use = tx_ring->next_to_use;
-       uint16_t next_to_clean = tx_ring->next_to_clean;
-       struct rte_mbuf *mbuf;
-       uint16_t seg_len;
-       unsigned int ring_size = tx_ring->ring_size;
-       unsigned int ring_mask = ring_size - 1;
-       struct ena_com_tx_ctx ena_tx_ctx;
-       struct ena_tx_buffer *tx_info;
-       struct ena_com_buf *ebuf;
-       uint16_t rc, req_id, total_tx_descs = 0;
-       uint16_t sent_idx = 0, empty_tx_reqs;
-       uint16_t push_len = 0;
-       uint16_t delta = 0;
-       int nb_hw_desc;
-       uint32_t total_length;
+       struct ena_com_buf *ena_buf;
+       uint16_t delta, seg_len, push_len;
 
-       /* Check adapter state */
-       if (unlikely(tx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) {
-               RTE_LOG(ALERT, PMD,
-                       "Trying to xmit pkts while device is NOT running\n");
-               return 0;
-       }
+       delta = 0;
+       seg_len = mbuf->data_len;
 
-       empty_tx_reqs = ring_size - (next_to_use - next_to_clean);
-       if (nb_pkts > empty_tx_reqs)
-               nb_pkts = empty_tx_reqs;
+       tx_info->mbuf = mbuf;
+       ena_buf = tx_info->bufs;
 
-       for (sent_idx = 0; sent_idx < nb_pkts; sent_idx++) {
-               mbuf = tx_pkts[sent_idx];
-               total_length = 0;
+       if (tx_ring->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
+               /*
+                * Tx header might be (and will be in most cases) smaller than
+                * tx_max_header_size. But it's not an issue to send more data
+                * to the device, than actually needed if the mbuf size is
+                * greater than tx_max_header_size.
+                */
+               push_len = RTE_MIN(mbuf->pkt_len, tx_ring->tx_max_header_size);
+               *header_len = push_len;
 
-               rc = ena_check_and_linearize_mbuf(tx_ring, mbuf);
-               if (unlikely(rc))
-                       break;
+               if (likely(push_len <= seg_len)) {
+                       /* If the push header is in the single segment, then
+                        * just point it to the 1st mbuf data.
+                        */
+                       *push_header = rte_pktmbuf_mtod(mbuf, uint8_t *);
+               } else {
+                       /* If the push header lays in the several segments, copy
+                        * it to the intermediate buffer.
+                        */
+                       rte_pktmbuf_read(mbuf, 0, push_len,
+                               tx_ring->push_buf_intermediate_buf);
+                       *push_header = tx_ring->push_buf_intermediate_buf;
+                       delta = push_len - seg_len;
+               }
+       } else {
+               *push_header = NULL;
+               *header_len = 0;
+               push_len = 0;
+       }
 
-               req_id = tx_ring->empty_tx_reqs[next_to_use & ring_mask];
-               tx_info = &tx_ring->tx_buffer_info[req_id];
-               tx_info->mbuf = mbuf;
-               tx_info->num_of_bufs = 0;
-               ebuf = tx_info->bufs;
+       /* Process first segment taking into consideration pushed header */
+       if (seg_len > push_len) {
+               ena_buf->paddr = mbuf->buf_iova +
+                               mbuf->data_off +
+                               push_len;
+               ena_buf->len = seg_len - push_len;
+               ena_buf++;
+               tx_info->num_of_bufs++;
+       }
+
+       while ((mbuf = mbuf->next) != NULL) {
+               seg_len = mbuf->data_len;
+
+               /* Skip mbufs if whole data is pushed as a header */
+               if (unlikely(delta > seg_len)) {
+                       delta -= seg_len;
+                       continue;
+               }
 
-               /* Prepare TX context */
-               memset(&ena_tx_ctx, 0x0, sizeof(struct ena_com_tx_ctx));
-               memset(&ena_tx_ctx.ena_meta, 0x0,
-                      sizeof(struct ena_com_tx_meta));
-               ena_tx_ctx.ena_bufs = ebuf;
-               ena_tx_ctx.req_id = req_id;
+               ena_buf->paddr = mbuf->buf_iova + mbuf->data_off + delta;
+               ena_buf->len = seg_len - delta;
+               ena_buf++;
+               tx_info->num_of_bufs++;
 
                delta = 0;
-               seg_len = mbuf->data_len;
+       }
+}
 
-               if (tx_ring->tx_mem_queue_type ==
-                               ENA_ADMIN_PLACEMENT_POLICY_DEV) {
-                       push_len = RTE_MIN(mbuf->pkt_len,
-                                          tx_ring->tx_max_header_size);
-                       ena_tx_ctx.header_len = push_len;
+static int ena_xmit_mbuf(struct ena_ring *tx_ring, struct rte_mbuf *mbuf)
+{
+       struct ena_tx_buffer *tx_info;
+       struct ena_com_tx_ctx ena_tx_ctx = { { 0 } };
+       uint16_t next_to_use;
+       uint16_t header_len;
+       uint16_t req_id;
+       void *push_header;
+       int nb_hw_desc;
+       int rc;
 
-                       if (likely(push_len <= seg_len)) {
-                               /* If the push header is in the single segment,
-                                * then just point it to the 1st mbuf data.
-                                */
-                               ena_tx_ctx.push_header =
-                                       rte_pktmbuf_mtod(mbuf, uint8_t *);
-                       } else {
-                               /* If the push header lays in the several
-                                * segments, copy it to the intermediate buffer.
-                                */
-                               rte_pktmbuf_read(mbuf, 0, push_len,
-                                       tx_ring->push_buf_intermediate_buf);
-                               ena_tx_ctx.push_header =
-                                       tx_ring->push_buf_intermediate_buf;
-                               delta = push_len - seg_len;
-                       }
-               } /* there's no else as we take advantage of memset zeroing */
+       rc = ena_check_space_and_linearize_mbuf(tx_ring, mbuf);
+       if (unlikely(rc))
+               return rc;
 
-               /* Set TX offloads flags, if applicable */
-               ena_tx_mbuf_prepare(mbuf, &ena_tx_ctx, tx_ring->offloads);
+       next_to_use = tx_ring->next_to_use;
 
-               if (unlikely(mbuf->ol_flags &
-                            (PKT_RX_L4_CKSUM_BAD | PKT_RX_IP_CKSUM_BAD)))
-                       rte_atomic64_inc(&tx_ring->adapter->drv_stats->ierrors);
+       req_id = tx_ring->empty_tx_reqs[next_to_use];
+       tx_info = &tx_ring->tx_buffer_info[req_id];
+       tx_info->num_of_bufs = 0;
 
-               rte_prefetch0(tx_pkts[(sent_idx + 4) & ring_mask]);
+       ena_tx_map_mbuf(tx_ring, tx_info, mbuf, &push_header, &header_len);
 
-               /* Process first segment taking into
-                * consideration pushed header
-                */
-               if (seg_len > push_len) {
-                       ebuf->paddr = mbuf->buf_iova +
-                                     mbuf->data_off +
-                                     push_len;
-                       ebuf->len = seg_len - push_len;
-                       ebuf++;
-                       tx_info->num_of_bufs++;
-               }
-               total_length += mbuf->data_len;
+       ena_tx_ctx.ena_bufs = tx_info->bufs;
+       ena_tx_ctx.push_header = push_header;
+       ena_tx_ctx.num_bufs = tx_info->num_of_bufs;
+       ena_tx_ctx.req_id = req_id;
+       ena_tx_ctx.header_len = header_len;
 
-               while ((mbuf = mbuf->next) != NULL) {
-                       seg_len = mbuf->data_len;
+       /* Set Tx offloads flags, if applicable */
+       ena_tx_mbuf_prepare(mbuf, &ena_tx_ctx, tx_ring->offloads,
+               tx_ring->disable_meta_caching);
 
-                       /* Skip mbufs if whole data is pushed as a header */
-                       if (unlikely(delta > seg_len)) {
-                               delta -= seg_len;
-                               continue;
-                       }
+       if (unlikely(ena_com_is_doorbell_needed(tx_ring->ena_com_io_sq,
+                       &ena_tx_ctx))) {
+               PMD_TX_LOG(DEBUG,
+                       "LLQ Tx max burst size of queue %d achieved, writing doorbell to send burst\n",
+                       tx_ring->id);
+               ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
+               tx_ring->tx_stats.doorbells++;
+               tx_ring->pkts_without_db = false;
+       }
 
-                       ebuf->paddr = mbuf->buf_iova + mbuf->data_off + delta;
-                       ebuf->len = seg_len - delta;
-                       total_length += ebuf->len;
-                       ebuf++;
-                       tx_info->num_of_bufs++;
+       /* prepare the packet's descriptors to dma engine */
+       rc = ena_com_prepare_tx(tx_ring->ena_com_io_sq, &ena_tx_ctx,
+               &nb_hw_desc);
+       if (unlikely(rc)) {
+               PMD_DRV_LOG(ERR, "Failed to prepare Tx buffers, rc: %d\n", rc);
+               ++tx_ring->tx_stats.prepare_ctx_err;
+               tx_ring->adapter->reset_reason =
+                   ENA_REGS_RESET_DRIVER_INVALID_STATE;
+               tx_ring->adapter->trigger_reset = true;
+               return rc;
+       }
 
-                       delta = 0;
-               }
+       tx_info->tx_descs = nb_hw_desc;
 
-               ena_tx_ctx.num_bufs = tx_info->num_of_bufs;
+       tx_ring->tx_stats.cnt++;
+       tx_ring->tx_stats.bytes += mbuf->pkt_len;
 
-               if (ena_com_is_doorbell_needed(tx_ring->ena_com_io_sq,
-                                              &ena_tx_ctx)) {
-                       RTE_LOG(DEBUG, PMD, "llq tx max burst size of queue %d"
-                               " achieved, writing doorbell to send burst\n",
-                               tx_ring->id);
-                       rte_wmb();
-                       ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
-               }
+       tx_ring->next_to_use = ENA_IDX_NEXT_MASKED(next_to_use,
+               tx_ring->size_mask);
 
-               /* prepare the packet's descriptors to dma engine */
-               rc = ena_com_prepare_tx(tx_ring->ena_com_io_sq,
-                                       &ena_tx_ctx, &nb_hw_desc);
-               if (unlikely(rc)) {
-                       ++tx_ring->tx_stats.prepare_ctx_err;
-                       break;
-               }
-               tx_info->tx_descs = nb_hw_desc;
+       return 0;
+}
 
-               next_to_use++;
-               tx_ring->tx_stats.cnt++;
-               tx_ring->tx_stats.bytes += total_length;
-       }
-       tx_ring->tx_stats.available_desc =
-               ena_com_free_desc(tx_ring->ena_com_io_sq);
+static void ena_tx_cleanup(struct ena_ring *tx_ring)
+{
+       unsigned int cleanup_budget;
+       unsigned int total_tx_descs = 0;
+       uint16_t next_to_clean = tx_ring->next_to_clean;
 
-       /* If there are ready packets to be xmitted... */
-       if (sent_idx > 0) {
-               /* ...let HW do its best :-) */
-               rte_wmb();
-               ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
-               tx_ring->tx_stats.doorbells++;
-               tx_ring->next_to_use = next_to_use;
-       }
+       cleanup_budget = RTE_MIN(tx_ring->ring_size / ENA_REFILL_THRESH_DIVIDER,
+               (unsigned int)ENA_REFILL_THRESH_PACKET);
 
-       /* Clear complete packets  */
-       while (ena_com_tx_comp_req_id_get(tx_ring->ena_com_io_cq, &req_id) >= 0) {
-               rc = validate_tx_req_id(tx_ring, req_id);
-               if (rc)
+       while (likely(total_tx_descs < cleanup_budget)) {
+               struct rte_mbuf *mbuf;
+               struct ena_tx_buffer *tx_info;
+               uint16_t req_id;
+
+               if (ena_com_tx_comp_req_id_get(tx_ring->ena_com_io_cq, &req_id) != 0)
+                       break;
+
+               if (unlikely(validate_tx_req_id(tx_ring, req_id) != 0))
                        break;
 
                /* Get Tx info & store how many descs were processed  */
                tx_info = &tx_ring->tx_buffer_info[req_id];
-               total_tx_descs += tx_info->tx_descs;
 
-               /* Free whole mbuf chain  */
                mbuf = tx_info->mbuf;
                rte_pktmbuf_free(mbuf);
+
                tx_info->mbuf = NULL;
+               tx_ring->empty_tx_reqs[next_to_clean] = req_id;
 
-               /* Put back descriptor to the ring for reuse */
-               tx_ring->empty_tx_reqs[next_to_clean & ring_mask] = req_id;
-               next_to_clean++;
+               total_tx_descs += tx_info->tx_descs;
 
-               /* If too many descs to clean, leave it for another run */
-               if (unlikely(total_tx_descs > ENA_RING_DESCS_RATIO(ring_size)))
-                       break;
+               /* Put back descriptor to the ring for reuse */
+               next_to_clean = ENA_IDX_NEXT_MASKED(next_to_clean,
+                       tx_ring->size_mask);
        }
-       tx_ring->tx_stats.available_desc =
-               ena_com_free_desc(tx_ring->ena_com_io_sq);
 
-       if (total_tx_descs > 0) {
+       if (likely(total_tx_descs > 0)) {
                /* acknowledge completion of sent packets */
                tx_ring->next_to_clean = next_to_clean;
                ena_com_comp_ack(tx_ring->ena_com_io_sq, total_tx_descs);
                ena_com_update_dev_comp_head(tx_ring->ena_com_io_cq);
        }
+}
+
+static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
+                                 uint16_t nb_pkts)
+{
+       struct ena_ring *tx_ring = (struct ena_ring *)(tx_queue);
+       uint16_t sent_idx = 0;
+
+#ifdef RTE_ETHDEV_DEBUG_TX
+       /* Check adapter state */
+       if (unlikely(tx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) {
+               PMD_TX_LOG(ALERT,
+                       "Trying to xmit pkts while device is NOT running\n");
+               return 0;
+       }
+#endif
 
+       for (sent_idx = 0; sent_idx < nb_pkts; sent_idx++) {
+               if (ena_xmit_mbuf(tx_ring, tx_pkts[sent_idx]))
+                       break;
+               tx_ring->pkts_without_db = true;
+               rte_prefetch0(tx_pkts[ENA_IDX_ADD_MASKED(sent_idx, 4,
+                       tx_ring->size_mask)]);
+       }
+
+       tx_ring->tx_stats.available_desc =
+               ena_com_free_q_entries(tx_ring->ena_com_io_sq);
+
+       /* If there are ready packets to be xmitted... */
+       if (likely(tx_ring->pkts_without_db)) {
+               /* ...let HW do its best :-) */
+               ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
+               tx_ring->tx_stats.doorbells++;
+               tx_ring->pkts_without_db = false;
+       }
+
+       ena_tx_cleanup(tx_ring);
+
+       tx_ring->tx_stats.available_desc =
+               ena_com_free_q_entries(tx_ring->ena_com_io_sq);
        tx_ring->tx_stats.tx_poll++;
 
        return sent_idx;
 }
 
+int ena_copy_eni_stats(struct ena_adapter *adapter)
+{
+       struct ena_admin_eni_stats admin_eni_stats;
+       int rc;
+
+       rte_spinlock_lock(&adapter->admin_lock);
+       rc = ena_com_get_eni_stats(&adapter->ena_dev, &admin_eni_stats);
+       rte_spinlock_unlock(&adapter->admin_lock);
+       if (rc != 0) {
+               if (rc == ENA_COM_UNSUPPORTED) {
+                       PMD_DRV_LOG(DEBUG,
+                               "Retrieving ENI metrics is not supported\n");
+               } else {
+                       PMD_DRV_LOG(WARNING,
+                               "Failed to get ENI metrics, rc: %d\n", rc);
+               }
+               return rc;
+       }
+
+       rte_memcpy(&adapter->eni_stats, &admin_eni_stats,
+               sizeof(struct ena_stats_eni));
+
+       return 0;
+}
+
 /**
  * DPDK callback to retrieve names of extended device statistics
  *
@@ -2446,7 +2587,7 @@ static int ena_xstats_get_names(struct rte_eth_dev *dev,
                                struct rte_eth_xstat_name *xstats_names,
                                unsigned int n)
 {
-       unsigned int xstats_count = ena_xstats_calc_num(dev);
+       unsigned int xstats_count = ena_xstats_calc_num(dev->data);
        unsigned int stat, i, count = 0;
 
        if (n < xstats_count || !xstats_names)
@@ -2456,6 +2597,10 @@ static int ena_xstats_get_names(struct rte_eth_dev *dev,
                strcpy(xstats_names[count].name,
                        ena_stats_global_strings[stat].name);
 
+       for (stat = 0; stat < ENA_STATS_ARRAY_ENI; stat++, count++)
+               strcpy(xstats_names[count].name,
+                       ena_stats_eni_strings[stat].name);
+
        for (stat = 0; stat < ENA_STATS_ARRAY_RX; stat++)
                for (i = 0; i < dev->data->nb_rx_queues; i++, count++)
                        snprintf(xstats_names[count].name,
@@ -2491,7 +2636,7 @@ static int ena_xstats_get(struct rte_eth_dev *dev,
                          unsigned int n)
 {
        struct ena_adapter *adapter = dev->data->dev_private;
-       unsigned int xstats_count = ena_xstats_calc_num(dev);
+       unsigned int xstats_count = ena_xstats_calc_num(dev->data);
        unsigned int stat, i, count = 0;
        int stat_offset;
        void *stats_begin;
@@ -2503,7 +2648,7 @@ static int ena_xstats_get(struct rte_eth_dev *dev,
                return 0;
 
        for (stat = 0; stat < ENA_STATS_ARRAY_GLOBAL; stat++, count++) {
-               stat_offset = ena_stats_rx_strings[stat].stat_offset;
+               stat_offset = ena_stats_global_strings[stat].stat_offset;
                stats_begin = &adapter->dev_stats;
 
                xstats[count].id = count;
@@ -2511,6 +2656,19 @@ static int ena_xstats_get(struct rte_eth_dev *dev,
                        ((char *)stats_begin + stat_offset));
        }
 
+       /* Even if the function below fails, we should copy previous (or initial
+        * values) to keep structure of rte_eth_xstat consistent.
+        */
+       ena_copy_eni_stats(adapter);
+       for (stat = 0; stat < ENA_STATS_ARRAY_ENI; stat++, count++) {
+               stat_offset = ena_stats_eni_strings[stat].stat_offset;
+               stats_begin = &adapter->eni_stats;
+
+               xstats[count].id = count;
+               xstats[count].value = *((uint64_t *)
+                   ((char *)stats_begin + stat_offset));
+       }
+
        for (stat = 0; stat < ENA_STATS_ARRAY_RX; stat++) {
                for (i = 0; i < dev->data->nb_rx_queues; i++, count++) {
                        stat_offset = ena_stats_rx_strings[stat].stat_offset;
@@ -2547,6 +2705,8 @@ static int ena_xstats_get_by_id(struct rte_eth_dev *dev,
        unsigned int i;
        int qid;
        int valid = 0;
+       bool was_eni_copied = false;
+
        for (i = 0; i < n; ++i) {
                id = ids[i];
                /* Check if id belongs to global statistics */
@@ -2556,8 +2716,24 @@ static int ena_xstats_get_by_id(struct rte_eth_dev *dev,
                        continue;
                }
 
-               /* Check if id belongs to rx queue statistics */
+               /* Check if id belongs to ENI statistics */
                id -= ENA_STATS_ARRAY_GLOBAL;
+               if (id < ENA_STATS_ARRAY_ENI) {
+                       /* Avoid reading ENI stats multiple times in a single
+                        * function call, as it requires communication with the
+                        * admin queue.
+                        */
+                       if (!was_eni_copied) {
+                               was_eni_copied = true;
+                               ena_copy_eni_stats(adapter);
+                       }
+                       values[i] = *((uint64_t *)&adapter->eni_stats + id);
+                       ++valid;
+                       continue;
+               }
+
+               /* Check if id belongs to rx queue statistics */
+               id -= ENA_STATS_ARRAY_ENI;
                rx_entries = ENA_STATS_ARRAY_RX * dev->data->nb_rx_queues;
                if (id < rx_entries) {
                        qid = id % dev->data->nb_rx_queues;
@@ -2583,6 +2759,154 @@ static int ena_xstats_get_by_id(struct rte_eth_dev *dev,
        return valid;
 }
 
+static int ena_process_bool_devarg(const char *key,
+                                  const char *value,
+                                  void *opaque)
+{
+       struct ena_adapter *adapter = opaque;
+       bool bool_value;
+
+       /* Parse the value. */
+       if (strcmp(value, "1") == 0) {
+               bool_value = true;
+       } else if (strcmp(value, "0") == 0) {
+               bool_value = false;
+       } else {
+               PMD_INIT_LOG(ERR,
+                       "Invalid value: '%s' for key '%s'. Accepted: '0' or '1'\n",
+                       value, key);
+               return -EINVAL;
+       }
+
+       /* Now, assign it to the proper adapter field. */
+       if (strcmp(key, ENA_DEVARG_LARGE_LLQ_HDR) == 0)
+               adapter->use_large_llq_hdr = bool_value;
+
+       return 0;
+}
+
+static int ena_parse_devargs(struct ena_adapter *adapter,
+                            struct rte_devargs *devargs)
+{
+       static const char * const allowed_args[] = {
+               ENA_DEVARG_LARGE_LLQ_HDR,
+               NULL,
+       };
+       struct rte_kvargs *kvlist;
+       int rc;
+
+       if (devargs == NULL)
+               return 0;
+
+       kvlist = rte_kvargs_parse(devargs->args, allowed_args);
+       if (kvlist == NULL) {
+               PMD_INIT_LOG(ERR, "Invalid device arguments: %s\n",
+                       devargs->args);
+               return -EINVAL;
+       }
+
+       rc = rte_kvargs_process(kvlist, ENA_DEVARG_LARGE_LLQ_HDR,
+               ena_process_bool_devarg, adapter);
+
+       rte_kvargs_free(kvlist);
+
+       return rc;
+}
+
+static int ena_setup_rx_intr(struct rte_eth_dev *dev)
+{
+       struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
+       int rc;
+       uint16_t vectors_nb, i;
+       bool rx_intr_requested = dev->data->dev_conf.intr_conf.rxq;
+
+       if (!rx_intr_requested)
+               return 0;
+
+       if (!rte_intr_cap_multiple(intr_handle)) {
+               PMD_DRV_LOG(ERR,
+                       "Rx interrupt requested, but it isn't supported by the PCI driver\n");
+               return -ENOTSUP;
+       }
+
+       /* Disable interrupt mapping before the configuration starts. */
+       rte_intr_disable(intr_handle);
+
+       /* Verify if there are enough vectors available. */
+       vectors_nb = dev->data->nb_rx_queues;
+       if (vectors_nb > RTE_MAX_RXTX_INTR_VEC_ID) {
+               PMD_DRV_LOG(ERR,
+                       "Too many Rx interrupts requested, maximum number: %d\n",
+                       RTE_MAX_RXTX_INTR_VEC_ID);
+               rc = -ENOTSUP;
+               goto enable_intr;
+       }
+
+       intr_handle->intr_vec = rte_zmalloc("intr_vec",
+               dev->data->nb_rx_queues * sizeof(*intr_handle->intr_vec), 0);
+       if (intr_handle->intr_vec == NULL) {
+               PMD_DRV_LOG(ERR,
+                       "Failed to allocate interrupt vector for %d queues\n",
+                       dev->data->nb_rx_queues);
+               rc = -ENOMEM;
+               goto enable_intr;
+       }
+
+       rc = rte_intr_efd_enable(intr_handle, vectors_nb);
+       if (rc != 0)
+               goto free_intr_vec;
+
+       if (!rte_intr_allow_others(intr_handle)) {
+               PMD_DRV_LOG(ERR,
+                       "Not enough interrupts available to use both ENA Admin and Rx interrupts\n");
+               goto disable_intr_efd;
+       }
+
+       for (i = 0; i < vectors_nb; ++i)
+               intr_handle->intr_vec[i] = RTE_INTR_VEC_RXTX_OFFSET + i;
+
+       rte_intr_enable(intr_handle);
+       return 0;
+
+disable_intr_efd:
+       rte_intr_efd_disable(intr_handle);
+free_intr_vec:
+       rte_free(intr_handle->intr_vec);
+       intr_handle->intr_vec = NULL;
+enable_intr:
+       rte_intr_enable(intr_handle);
+       return rc;
+}
+
+static void ena_rx_queue_intr_set(struct rte_eth_dev *dev,
+                                uint16_t queue_id,
+                                bool unmask)
+{
+       struct ena_adapter *adapter = dev->data->dev_private;
+       struct ena_ring *rxq = &adapter->rx_ring[queue_id];
+       struct ena_eth_io_intr_reg intr_reg;
+
+       ena_com_update_intr_reg(&intr_reg, 0, 0, unmask);
+       ena_com_unmask_intr(rxq->ena_com_io_cq, &intr_reg);
+}
+
+static int ena_rx_queue_intr_enable(struct rte_eth_dev *dev,
+                                   uint16_t queue_id)
+{
+       ena_rx_queue_intr_set(dev, queue_id, true);
+
+       return 0;
+}
+
+static int ena_rx_queue_intr_disable(struct rte_eth_dev *dev,
+                                    uint16_t queue_id)
+{
+       ena_rx_queue_intr_set(dev, queue_id, false);
+
+       return 0;
+}
+
 /*********************************************************************
  *  PMD configuration
  *********************************************************************/
@@ -2609,16 +2933,16 @@ static struct rte_pci_driver rte_ena_pmd = {
 RTE_PMD_REGISTER_PCI(net_ena, rte_ena_pmd);
 RTE_PMD_REGISTER_PCI_TABLE(net_ena, pci_id_ena_map);
 RTE_PMD_REGISTER_KMOD_DEP(net_ena, "* igb_uio | uio_pci_generic | vfio-pci");
-
-RTE_INIT(ena_init_log)
-{
-       ena_logtype_init = rte_log_register("pmd.net.ena.init");
-       if (ena_logtype_init >= 0)
-               rte_log_set_level(ena_logtype_init, RTE_LOG_NOTICE);
-       ena_logtype_driver = rte_log_register("pmd.net.ena.driver");
-       if (ena_logtype_driver >= 0)
-               rte_log_set_level(ena_logtype_driver, RTE_LOG_NOTICE);
-}
+RTE_PMD_REGISTER_PARAM_STRING(net_ena, ENA_DEVARG_LARGE_LLQ_HDR "=<0|1>");
+RTE_LOG_REGISTER_SUFFIX(ena_logtype_init, init, NOTICE);
+RTE_LOG_REGISTER_SUFFIX(ena_logtype_driver, driver, NOTICE);
+#ifdef RTE_ETHDEV_DEBUG_RX
+RTE_LOG_REGISTER_SUFFIX(ena_logtype_rx, rx, DEBUG);
+#endif
+#ifdef RTE_ETHDEV_DEBUG_TX
+RTE_LOG_REGISTER_SUFFIX(ena_logtype_tx, tx, DEBUG);
+#endif
+RTE_LOG_REGISTER_SUFFIX(ena_logtype_com, com, WARNING);
 
 /******************************************************************************
  ******************************** AENQ Handlers *******************************
@@ -2626,57 +2950,61 @@ RTE_INIT(ena_init_log)
 static void ena_update_on_link_change(void *adapter_data,
                                      struct ena_admin_aenq_entry *aenq_e)
 {
-       struct rte_eth_dev *eth_dev;
-       struct ena_adapter *adapter;
+       struct rte_eth_dev *eth_dev = adapter_data;
+       struct ena_adapter *adapter = eth_dev->data->dev_private;
        struct ena_admin_aenq_link_change_desc *aenq_link_desc;
        uint32_t status;
 
-       adapter = adapter_data;
        aenq_link_desc = (struct ena_admin_aenq_link_change_desc *)aenq_e;
-       eth_dev = adapter->rte_dev;
 
        status = get_ena_admin_aenq_link_change_desc_link_status(aenq_link_desc);
        adapter->link_status = status;
 
        ena_link_update(eth_dev, 0);
-       _rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL);
+       rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL);
 }
 
-static void ena_notification(void *data,
+static void ena_notification(void *adapter_data,
                             struct ena_admin_aenq_entry *aenq_e)
 {
-       struct ena_adapter *adapter = data;
+       struct rte_eth_dev *eth_dev = adapter_data;
+       struct ena_adapter *adapter = eth_dev->data->dev_private;
        struct ena_admin_ena_hw_hints *hints;
 
        if (aenq_e->aenq_common_desc.group != ENA_ADMIN_NOTIFICATION)
-               RTE_LOG(WARNING, PMD, "Invalid group(%x) expected %x\n",
+               PMD_DRV_LOG(WARNING, "Invalid AENQ group: %x. Expected: %x\n",
                        aenq_e->aenq_common_desc.group,
                        ENA_ADMIN_NOTIFICATION);
 
-       switch (aenq_e->aenq_common_desc.syndrom) {
+       switch (aenq_e->aenq_common_desc.syndrome) {
        case ENA_ADMIN_UPDATE_HINTS:
                hints = (struct ena_admin_ena_hw_hints *)
                        (&aenq_e->inline_data_w4);
                ena_update_hints(adapter, hints);
                break;
        default:
-               RTE_LOG(ERR, PMD, "Invalid aenq notification link state %d\n",
-                       aenq_e->aenq_common_desc.syndrom);
+               PMD_DRV_LOG(ERR, "Invalid AENQ notification link state: %d\n",
+                       aenq_e->aenq_common_desc.syndrome);
        }
 }
 
 static void ena_keep_alive(void *adapter_data,
                           __rte_unused struct ena_admin_aenq_entry *aenq_e)
 {
-       struct ena_adapter *adapter = adapter_data;
+       struct rte_eth_dev *eth_dev = adapter_data;
+       struct ena_adapter *adapter = eth_dev->data->dev_private;
        struct ena_admin_aenq_keep_alive_desc *desc;
        uint64_t rx_drops;
+       uint64_t tx_drops;
 
        adapter->timestamp_wd = rte_get_timer_cycles();
 
        desc = (struct ena_admin_aenq_keep_alive_desc *)aenq_e;
        rx_drops = ((uint64_t)desc->rx_drops_high << 32) | desc->rx_drops_low;
-       rte_atomic64_set(&adapter->drv_stats->rx_drops, rx_drops);
+       tx_drops = ((uint64_t)desc->tx_drops_high << 32) | desc->tx_drops_low;
+
+       adapter->drv_stats->rx_drops = rx_drops;
+       adapter->dev_stats.tx_drops = tx_drops;
 }
 
 /**
@@ -2685,8 +3013,8 @@ static void ena_keep_alive(void *adapter_data,
 static void unimplemented_aenq_handler(__rte_unused void *data,
                                       __rte_unused struct ena_admin_aenq_entry *aenq_e)
 {
-       RTE_LOG(ERR, PMD, "Unknown event was received or event with "
-                         "unimplemented handler\n");
+       PMD_DRV_LOG(ERR,
+               "Unknown event was received or event with unimplemented handler\n");
 }
 
 static struct ena_aenq_handlers aenq_handlers = {