net/ena: adjust logs
[dpdk.git] / drivers / net / ena / ena_ethdev.c
index f6d0a75..f5e812d 100644 (file)
@@ -5,8 +5,8 @@
 
 #include <rte_string_fns.h>
 #include <rte_ether.h>
-#include <rte_ethdev_driver.h>
-#include <rte_ethdev_pci.h>
+#include <ethdev_driver.h>
+#include <ethdev_pci.h>
 #include <rte_tcp.h>
 #include <rte_atomic.h>
 #include <rte_dev.h>
@@ -27,8 +27,8 @@
 #include <ena_eth_io_defs.h>
 
 #define DRV_MODULE_VER_MAJOR   2
-#define DRV_MODULE_VER_MINOR   0
-#define DRV_MODULE_VER_SUBMINOR        3
+#define DRV_MODULE_VER_MINOR   3
+#define DRV_MODULE_VER_SUBMINOR        0
 
 #define ENA_IO_TXQ_IDX(q)      (2 * (q))
 #define ENA_IO_RXQ_IDX(q)      (2 * (q) + 1)
 #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,
@@ -72,6 +74,9 @@ 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)
 
@@ -82,7 +87,7 @@ struct ena_stats {
  * Each rte_memzone should have unique name.
  * To satisfy it, count number of allocation and add it to name.
  */
-rte_atomic32_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),
@@ -91,6 +96,14 @@ static const struct ena_stats ena_stats_global_strings[] = {
        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[] = {
        ENA_STAT_TX_ENTRY(cnt),
        ENA_STAT_TX_ENTRY(bytes),
@@ -114,6 +127,7 @@ 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)
 
@@ -128,8 +142,8 @@ static const struct ena_stats ena_stats_rx_strings[] = {
 /** 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 |         \
@@ -141,34 +155,26 @@ static const struct ena_stats ena_stats_rx_strings[] = {
 #define        ENA_TX_OFFLOAD_NOTSUP_MASK      \
        (PKT_TX_OFFLOAD_MASK ^ ENA_TX_OFFLOAD_MASK)
 
-int ena_logtype_init;
-int ena_logtype_driver;
-
-#ifdef RTE_LIBRTE_ENA_DEBUG_RX
-int ena_logtype_rx;
-#endif
-#ifdef RTE_LIBRTE_ENA_DEBUG_TX
-int ena_logtype_tx;
-#endif
-#ifdef RTE_LIBRTE_ENA_DEBUG_TX_FREE
-int ena_logtype_tx_free;
-#endif
-#ifdef RTE_LIBRTE_ENA_COM_DEBUG
-int ena_logtype_com;
-#endif
-
 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,
@@ -188,13 +194,15 @@ static struct rte_mbuf *ena_rx_mbuf(struct ena_ring *rx_ring,
                                    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,
                           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);
@@ -240,6 +248,7 @@ static int ena_process_bool_devarg(const char *key,
                                   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 const struct eth_dev_ops ena_dev_ops = {
        .dev_configure        = ena_dev_configure,
@@ -290,21 +299,28 @@ 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 |= PKT_RX_IP_CKSUM_BAD;
+               else
+                       ol_flags |= PKT_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)
+       if (!ena_rx_ctx->l4_csum_checked || ena_rx_ctx->frag)
                ol_flags |= PKT_RX_L4_CKSUM_UNKNOWN;
        else
-               if (unlikely(ena_rx_ctx->l4_csum_err) && !ena_rx_ctx->frag)
+               if (unlikely(ena_rx_ctx->l4_csum_err))
                        ol_flags |= PKT_RX_L4_CKSUM_BAD;
                else
-                       ol_flags |= PKT_RX_L4_CKSUM_UNKNOWN;
+                       ol_flags |= PKT_RX_L4_CKSUM_GOOD;
 
-       if (unlikely(ena_rx_ctx->l3_csum_err))
-               ol_flags |= PKT_RX_IP_CKSUM_BAD;
+       if (likely((packet_type & ENA_PTYPE_HAS_HASH) && !ena_rx_ctx->frag)) {
+               ol_flags |= PKT_RX_RSS_HASH;
+               mbuf->hash.rss = ena_rx_ctx->hash;
+       }
 
        mbuf->ol_flags = ol_flags;
        mbuf->packet_type = packet_type;
@@ -372,20 +388,6 @@ static inline void ena_tx_mbuf_prepare(struct rte_mbuf *mbuf,
        }
 }
 
-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;
-
-       PMD_DRV_LOG(ERR, "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;
@@ -456,11 +458,11 @@ 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)
@@ -468,7 +470,7 @@ 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;
@@ -494,14 +496,18 @@ 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);
@@ -513,13 +519,15 @@ 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
@@ -527,10 +535,16 @@ 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");
+               PMD_INIT_LOG(CRIT, "Cannot initialize device\n");
 
        return rc;
 }
@@ -551,7 +565,7 @@ static int ena_rss_reta_update(struct rte_eth_dev *dev,
 
        if (reta_size > ENA_RX_RSS_TABLE_SIZE) {
                PMD_DRV_LOG(WARNING,
-                       "indirection table %d is bigger than supported (%d)\n",
+                       "Requested indirection table size (%d) is bigger than supported: %d\n",
                        reta_size, ENA_RX_RSS_TABLE_SIZE);
                return -EINVAL;
        }
@@ -577,14 +591,16 @@ static int ena_rss_reta_update(struct rte_eth_dev *dev,
                }
        }
 
+       rte_spinlock_lock(&adapter->admin_lock);
        rc = ena_com_indirect_table_set(ena_dev);
+       rte_spinlock_unlock(&adapter->admin_lock);
        if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
                PMD_DRV_LOG(ERR, "Cannot flush the indirect table\n");
                return rc;
        }
 
-       PMD_DRV_LOG(DEBUG, "%s(): RSS configured %d entries  for port %d\n",
-               __func__, reta_size, adapter->rte_dev->data->port_id);
+       PMD_DRV_LOG(DEBUG, "RSS configured %d entries for port %d\n",
+               reta_size, dev->data->port_id);
 
        return 0;
 }
@@ -606,9 +622,11 @@ static int ena_rss_reta_query(struct rte_eth_dev *dev,
            (reta_size > RTE_RETA_GROUP_SIZE && ((reta_conf + 1) == NULL)))
                return -EINVAL;
 
+       rte_spinlock_lock(&adapter->admin_lock);
        rc = ena_com_indirect_table_get(ena_dev, indirect_table);
+       rte_spinlock_unlock(&adapter->admin_lock);
        if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
-               PMD_DRV_LOG(ERR, "cannot get indirect table\n");
+               PMD_DRV_LOG(ERR, "Cannot get indirection table\n");
                return -ENOTSUP;
        }
 
@@ -626,13 +644,13 @@ static int ena_rss_reta_query(struct rte_eth_dev *dev,
 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;
+       uint16_t nb_rx_queues = adapter->edev_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)) {
-               PMD_DRV_LOG(ERR, "Cannot init indirect table\n");
+               PMD_DRV_LOG(ERR, "Cannot init indirection table\n");
                goto err_rss_init;
        }
 
@@ -641,7 +659,7 @@ static int ena_rss_init_default(struct ena_adapter *adapter)
                rc = ena_com_indirect_table_fill_entry(ena_dev, i,
                                                       ENA_IO_RXQ_IDX(val));
                if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
-                       PMD_DRV_LOG(ERR, "Cannot fill indirect table\n");
+                       PMD_DRV_LOG(ERR, "Cannot fill indirection table\n");
                        goto err_fill_indir;
                }
        }
@@ -661,11 +679,11 @@ static int ena_rss_init_default(struct ena_adapter *adapter)
 
        rc = ena_com_indirect_table_set(ena_dev);
        if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
-               PMD_DRV_LOG(ERR, "Cannot flush the indirect table\n");
+               PMD_DRV_LOG(ERR, "Cannot flush indirection table\n");
                goto err_fill_indir;
        }
        PMD_DRV_LOG(DEBUG, "RSS configured for port %d\n",
-               adapter->rte_dev->data->port_id);
+               adapter->edev_data->port_id);
 
        return 0;
 
@@ -715,7 +733,7 @@ static void ena_rx_queue_release(void *queue)
 
        ring->configured = 0;
 
-       PMD_DRV_LOG(NOTICE, "RX Queue %d:%d released\n",
+       PMD_DRV_LOG(NOTICE, "Rx queue %d:%d released\n",
                ring->port_id, ring->id);
 }
 
@@ -739,7 +757,7 @@ static void ena_tx_queue_release(void *queue)
 
        ring->configured = 0;
 
-       PMD_DRV_LOG(NOTICE, "TX Queue %d:%d released\n",
+       PMD_DRV_LOG(NOTICE, "Tx queue %d:%d released\n",
                ring->port_id, ring->id);
 }
 
@@ -763,8 +781,10 @@ 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;
+               }
        }
 }
 
@@ -802,19 +822,19 @@ 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]);
 
                        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;
                        }
                }
@@ -834,10 +854,10 @@ 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;
 }
@@ -847,9 +867,9 @@ 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;
        }
 
@@ -918,7 +938,7 @@ ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *ctx,
                     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",
+                               "Forcing large headers and decreasing maximum Tx queue size to %d\n",
                                max_tx_queue_size);
                } else {
                        PMD_INIT_LOG(ERR,
@@ -927,7 +947,7 @@ ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *ctx,
        }
 
        if (unlikely(max_rx_queue_size == 0 || max_tx_queue_size == 0)) {
-               PMD_INIT_LOG(ERR, "Invalid queue size");
+               PMD_INIT_LOG(ERR, "Invalid queue size\n");
                return -EFAULT;
        }
 
@@ -961,7 +981,10 @@ 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)) {
                PMD_DRV_LOG(ERR, "Could not retrieve statistics from ENA\n");
                return rc;
@@ -1021,8 +1044,7 @@ static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 
        if (mtu > ena_get_mtu_conf(adapter) || mtu < ENA_MIN_MTU) {
                PMD_DRV_LOG(ERR,
-                       "Invalid MTU setting. new_mtu: %d "
-                       "max mtu: %d min mtu: %d\n",
+                       "Invalid MTU setting. New MTU: %d, max MTU: %d, min MTU: %d\n",
                        mtu, ena_get_mtu_conf(adapter), ENA_MIN_MTU);
                return -EINVAL;
        }
@@ -1031,7 +1053,7 @@ static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
        if (rc)
                PMD_DRV_LOG(ERR, "Could not set MTU: %d\n", mtu);
        else
-               PMD_DRV_LOG(NOTICE, "Set MTU: %d\n", mtu);
+               PMD_DRV_LOG(NOTICE, "MTU set to: %d\n", mtu);
 
        return rc;
 }
@@ -1042,6 +1064,12 @@ 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;
@@ -1054,8 +1082,8 @@ 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) {
+       if (adapter->edev_data->dev_conf.rxmode.mq_mode &
+           ETH_MQ_RX_RSS_FLAG && adapter->edev_data->nb_rx_queues > 0) {
                rc = ena_rss_init_default(adapter);
                if (rc)
                        goto err_rss_init;
@@ -1068,7 +1096,7 @@ 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;
@@ -1082,12 +1110,18 @@ 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;
        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);
@@ -1095,11 +1129,14 @@ 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)
-                       PMD_DRV_LOG(ERR, "Device reset failed rc=%d\n", rc);
+                       PMD_DRV_LOG(ERR, "Device reset failed, rc: %d\n", rc);
        }
 
        ++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)
@@ -1137,7 +1174,7 @@ static int ena_create_io_queue(struct ena_ring *ring)
        rc = ena_com_create_io_queue(ena_dev, &ctx);
        if (rc) {
                PMD_DRV_LOG(ERR,
-                       "failed to create io queue #%d (qid:%d) rc: %d\n",
+                       "Failed to create IO queue[%d] (qid:%d), rc: %d\n",
                        ring->id, ena_qid, rc);
                return rc;
        }
@@ -1147,7 +1184,7 @@ static int ena_create_io_queue(struct ena_ring *ring)
                                     &ring->ena_com_io_cq);
        if (rc) {
                PMD_DRV_LOG(ERR,
-                       "Failed to get io queue handlers. queue num %d rc: %d\n",
+                       "Failed to get IO queue[%d] handlers, rc: %d\n",
                        ring->id, rc);
                ena_com_destroy_io_queue(ena_dev, ena_qid);
                return rc;
@@ -1201,7 +1238,7 @@ static int ena_queue_start(struct ena_ring *ring)
 
        rc = ena_create_io_queue(ring);
        if (rc) {
-               PMD_INIT_LOG(ERR, "Failed to create IO queue!");
+               PMD_INIT_LOG(ERR, "Failed to create IO queue\n");
                return rc;
        }
 
@@ -1219,9 +1256,13 @@ 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;
 }
@@ -1240,41 +1281,40 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev,
 
        if (txq->configured) {
                PMD_DRV_LOG(CRIT,
-                       "API violation. Queue %d is already configured\n",
+                       "API violation. Queue[%d] is already configured\n",
                        queue_idx);
                return ENA_COM_FAULT;
        }
 
        if (!rte_is_power_of_2(nb_desc)) {
                PMD_DRV_LOG(ERR,
-                       "Unsupported size of TX queue: %d is not a power of 2.\n",
+                       "Unsupported size of Tx queue: %d is not a power of 2.\n",
                        nb_desc);
                return -EINVAL;
        }
 
        if (nb_desc > adapter->max_tx_ring_size) {
                PMD_DRV_LOG(ERR,
-                       "Unsupported size of TX queue (max size: %d)\n",
+                       "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->max_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) {
-               PMD_DRV_LOG(ERR, "failed to alloc mem for tx buffer info\n");
+               PMD_DRV_LOG(ERR,
+                       "Failed to allocate memory for Tx buffer info\n");
                return -ENOMEM;
        }
 
@@ -1282,7 +1322,8 @@ 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) {
-               PMD_DRV_LOG(ERR, "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;
        }
@@ -1292,7 +1333,7 @@ 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) {
-               PMD_DRV_LOG(ERR, "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;
@@ -1327,24 +1368,21 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev,
        rxq = &adapter->rx_ring[queue_idx];
        if (rxq->configured) {
                PMD_DRV_LOG(CRIT,
-                       "API violation. Queue %d is already configured\n",
+                       "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->max_rx_ring_size;
-
        if (!rte_is_power_of_2(nb_desc)) {
                PMD_DRV_LOG(ERR,
-                       "Unsupported size of RX queue: %d is not a power of 2.\n",
+                       "Unsupported size of Rx queue: %d is not a power of 2.\n",
                        nb_desc);
                return -EINVAL;
        }
 
        if (nb_desc > adapter->max_rx_ring_size) {
                PMD_DRV_LOG(ERR,
-                       "Unsupported size of RX queue (max size: %d)\n",
+                       "Unsupported size of Rx queue (max size: %d)\n",
                        adapter->max_rx_ring_size);
                return -EINVAL;
        }
@@ -1353,7 +1391,7 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev,
        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",
+                       "Unsupported size of Rx buffer: %zu (min size: %d)\n",
                        buffer_size, ENA_RX_BUF_MIN_SIZE);
                return -EINVAL;
        }
@@ -1370,7 +1408,8 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev,
                sizeof(struct ena_rx_buffer) * nb_desc,
                RTE_CACHE_LINE_SIZE);
        if (!rxq->rx_buffer_info) {
-               PMD_DRV_LOG(ERR, "failed to alloc mem for rx buffer info\n");
+               PMD_DRV_LOG(ERR,
+                       "Failed to allocate memory for Rx buffer info\n");
                return -ENOMEM;
        }
 
@@ -1379,7 +1418,8 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev,
                                            RTE_CACHE_LINE_SIZE);
 
        if (!rxq->rx_refill_buffer) {
-               PMD_DRV_LOG(ERR, "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;
@@ -1389,7 +1429,8 @@ 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) {
-               PMD_DRV_LOG(ERR, "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);
@@ -1407,6 +1448,24 @@ 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_DRV_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;
@@ -1424,48 +1483,37 @@ static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count)
                "bad ring state\n");
 
        /* 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++) {
                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];
-               rc = validate_rx_req_id(rxq, req_id);
-               if (unlikely(rc))
-                       break;
-
                rx_info = &rxq->rx_buffer_info[req_id];
 
-               /* 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)) {
-                       PMD_DRV_LOG(WARNING, "failed adding rx desc\n");
+               rc = ena_add_single_rx_desc(rxq->ena_com_io_sq, mbuf, req_id);
+               if (unlikely(rc != 0))
                        break;
-               }
+
                rx_info->mbuf = mbuf;
                next_to_use = ENA_IDX_NEXT_MASKED(next_to_use, rxq->size_mask);
        }
 
        if (unlikely(i < count)) {
-               PMD_DRV_LOG(WARNING, "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_DRV_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;
        }
 
@@ -1481,6 +1529,7 @@ 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)
 {
@@ -1491,29 +1540,27 @@ 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) {
-               PMD_DRV_LOG(ERR, "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) {
-               PMD_DRV_LOG(ERR, "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) {
-               PMD_DRV_LOG(ERR, "device version is too low\n");
+               PMD_DRV_LOG(ERR, "Device version is too low\n");
                goto err_mmio_read_less;
        }
 
@@ -1523,7 +1570,7 @@ static int ena_device_init(struct ena_com_dev *ena_dev,
        rc = ena_com_admin_init(ena_dev, &aenq_handlers);
        if (rc) {
                PMD_DRV_LOG(ERR,
-                       "cannot initialize ena admin queue with device\n");
+                       "Cannot initialize ENA admin queue\n");
                goto err_mmio_read_less;
        }
 
@@ -1539,7 +1586,7 @@ static int ena_device_init(struct ena_com_dev *ena_dev,
        rc = ena_com_get_dev_attr_feat(ena_dev, get_feat_ctx);
        if (rc) {
                PMD_DRV_LOG(ERR,
-                       "cannot get attribute for ena device rc= %d\n", rc);
+                       "Cannot get attribute for ENA device, rc: %d\n", rc);
                goto err_admin_init;
        }
 
@@ -1552,7 +1599,7 @@ 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) {
-               PMD_DRV_LOG(ERR, "Cannot configure aenq groups rc: %d\n", rc);
+               PMD_DRV_LOG(ERR, "Cannot configure AENQ groups, rc: %d\n", rc);
                goto err_admin_init;
        }
 
@@ -1571,12 +1618,13 @@ 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)
@@ -1600,7 +1648,7 @@ 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))) {
-               PMD_DRV_LOG(ERR, "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;
        }
@@ -1609,15 +1657,15 @@ 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)) {
                PMD_DRV_LOG(ERR, "Trigger reset is on\n");
-               _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_RESET,
+               rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_RESET,
                        NULL);
        }
 }
@@ -1663,8 +1711,8 @@ 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;
        }
@@ -1674,8 +1722,8 @@ ena_set_queues_placement_policy(struct ena_adapter *adapter,
                return 0;
 
        if (!adapter->dev_mem_base) {
-               PMD_DRV_LOG(ERR, "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;
        }
@@ -1715,7 +1763,7 @@ static uint32_t ena_calc_max_io_queue_num(struct ena_com_dev *ena_dev,
        max_num_io_queues = RTE_MIN(max_num_io_queues, io_tx_cq_num);
 
        if (unlikely(max_num_io_queues == 0)) {
-               PMD_DRV_LOG(ERR, "Number of IO queues should not be 0\n");
+               PMD_DRV_LOG(ERR, "Number of IO queues cannot not be 0\n");
                return -EFAULT;
        }
 
@@ -1736,7 +1784,7 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
        int rc;
        static int adapters_found;
        bool disable_meta_caching;
-       bool wd_state;
+       bool wd_state = false;
 
        eth_dev->dev_ops = &ena_dev_ops;
        eth_dev->rx_pkt_burst = &eth_ena_recv_pkts;
@@ -1746,16 +1794,16 @@ 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,
@@ -1767,13 +1815,14 @@ 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;
 
@@ -1787,9 +1836,9 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
        }
 
        /* 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;
@@ -1799,7 +1848,7 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
        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;
        }
 
@@ -1857,24 +1906,21 @@ 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;
-
        adapter->drv_stats = rte_zmalloc("adapter stats",
                                         sizeof(*adapter->drv_stats),
                                         RTE_CACHE_LINE_SIZE);
        if (!adapter->drv_stats) {
-               PMD_DRV_LOG(ERR, "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;
        }
 
+       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);
@@ -1930,11 +1976,6 @@ 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;
 }
 
@@ -1944,6 +1985,9 @@ 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;
+
        adapter->tx_selected_offloads = dev->data->dev_conf.txmode.offloads;
        adapter->rx_selected_offloads = dev->data->dev_conf.rxmode.offloads;
        return 0;
@@ -2020,6 +2064,7 @@ static int ena_infos_get(struct rte_eth_dev *dev,
 
        /* Inform framework about available features */
        dev_info->rx_offload_capa = rx_feat;
+       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;
@@ -2052,6 +2097,9 @@ static int ena_infos_get(struct rte_eth_dev *dev,
        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;
 }
 
@@ -2072,6 +2120,7 @@ static struct rte_mbuf *ena_rx_mbuf(struct ena_ring *rx_ring,
        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))
@@ -2081,8 +2130,6 @@ static struct rte_mbuf *ena_rx_mbuf(struct ena_ring *rx_ring,
 
        len = ena_bufs[buf].len;
        req_id = ena_bufs[buf].req_id;
-       if (unlikely(validate_rx_req_id(rx_ring, req_id)))
-               return NULL;
 
        rx_info = &rx_ring->rx_buffer_info[req_id];
 
@@ -2106,21 +2153,48 @@ static struct rte_mbuf *ena_rx_mbuf(struct ena_ring *rx_ring,
                ++buf;
                len = ena_bufs[buf].len;
                req_id = ena_bufs[buf].req_id;
-               if (unlikely(validate_rx_req_id(rx_ring, req_id))) {
-                       rte_mbuf_raw_free(mbuf_head);
-                       return NULL;
-               }
 
                rx_info = &rx_ring->rx_buffer_info[req_id];
                RTE_ASSERT(rx_info->mbuf != NULL);
 
-               /* Create an mbuf chain. */
-               mbuf->next = rx_info->mbuf;
-               mbuf = mbuf->next;
+               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;
+                       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);
@@ -2165,11 +2239,19 @@ static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
                                    rx_ring->ena_com_io_sq,
                                    &ena_rx_ctx);
                if (unlikely(rc)) {
-                       PMD_DRV_LOG(ERR, "ena_com_rx_pkt error %d\n", rc);
-                       rx_ring->adapter->reset_reason =
-                               ENA_REGS_RESET_TOO_MANY_RX_DESCS;
+                       PMD_DRV_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;
                }
 
@@ -2197,8 +2279,6 @@ static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
                        ++rx_ring->rx_stats.bad_csum;
                }
 
-               mbuf->hash.rss = ena_rx_ctx.hash;
-
                rx_pkts[completed] = mbuf;
                rx_ring->rx_stats.bytes += mbuf->pkt_len;
        }
@@ -2313,8 +2393,8 @@ 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;
@@ -2324,13 +2404,21 @@ 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_DRV_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)) {
@@ -2340,201 +2428,266 @@ static int ena_check_and_linearize_mbuf(struct ena_ring *tx_ring,
                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_DRV_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 cleanup_budget;
-       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;
-       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)) {
-               PMD_DRV_LOG(ALERT,
-                       "Trying to xmit pkts while device is NOT running\n");
-               return 0;
-       }
+       delta = 0;
+       seg_len = mbuf->data_len;
 
-       nb_pkts = RTE_MIN(ena_com_free_q_entries(tx_ring->ena_com_io_sq),
-               nb_pkts);
+       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];
-               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,
-                       tx_ring->disable_meta_caching);
+       next_to_use = tx_ring->next_to_use;
 
-               rte_prefetch0(tx_pkts[ENA_IDX_ADD_MASKED(
-                       sent_idx, 4, tx_ring->size_mask)]);
+       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;
 
-               /* 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_map_mbuf(tx_ring, tx_info, mbuf, &push_header, &header_len);
 
-               while ((mbuf = mbuf->next) != NULL) {
-                       seg_len = 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;
 
-                       /* Skip mbufs if whole data is pushed as a header */
-                       if (unlikely(delta > seg_len)) {
-                               delta -= seg_len;
-                               continue;
-                       }
+       /* Set Tx offloads flags, if applicable */
+       ena_tx_mbuf_prepare(mbuf, &ena_tx_ctx, tx_ring->offloads,
+               tx_ring->disable_meta_caching);
 
-                       ebuf->paddr = mbuf->buf_iova + mbuf->data_off + delta;
-                       ebuf->len = seg_len - delta;
-                       total_length += ebuf->len;
-                       ebuf++;
-                       tx_info->num_of_bufs++;
+       if (unlikely(ena_com_is_doorbell_needed(tx_ring->ena_com_io_sq,
+                       &ena_tx_ctx))) {
+               PMD_DRV_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;
+       }
 
-                       delta = 0;
-               }
+       /* 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;
+               return rc;
+       }
 
-               ena_tx_ctx.num_bufs = tx_info->num_of_bufs;
+       tx_info->tx_descs = nb_hw_desc;
 
-               if (ena_com_is_doorbell_needed(tx_ring->ena_com_io_sq,
-                                              &ena_tx_ctx)) {
-                       PMD_DRV_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.cnt++;
+       tx_ring->tx_stats.bytes += mbuf->pkt_len;
 
-               /* 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;
+       tx_ring->next_to_use = ENA_IDX_NEXT_MASKED(next_to_use,
+               tx_ring->size_mask);
 
-               next_to_use = ENA_IDX_NEXT_MASKED(next_to_use,
-                       tx_ring->size_mask);
-               tx_ring->tx_stats.cnt++;
-               tx_ring->tx_stats.bytes += total_length;
-       }
-       tx_ring->tx_stats.available_desc =
-               ena_com_free_q_entries(tx_ring->ena_com_io_sq);
+       return 0;
+}
 
-       /* If there are ready packets to be xmitted... */
-       if (sent_idx > 0) {
-               /* ...let HW do its best :-) */
-               ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
-               tx_ring->tx_stats.doorbells++;
-               tx_ring->next_to_use = next_to_use;
-       }
+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;
 
-       /* 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)
+       cleanup_budget = RTE_MIN(tx_ring->ring_size / ENA_REFILL_THRESH_DIVIDER,
+               (unsigned int)ENA_REFILL_THRESH_PACKET);
+
+       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;
+
+               total_tx_descs += tx_info->tx_descs;
 
                /* Put back descriptor to the ring for reuse */
-               tx_ring->empty_tx_reqs[next_to_clean] = req_id;
                next_to_clean = ENA_IDX_NEXT_MASKED(next_to_clean,
                        tx_ring->size_mask);
-               cleanup_budget =
-                       RTE_MIN(tx_ring->ring_size / ENA_REFILL_THRESH_DIVIDER,
-                       (unsigned int)ENA_REFILL_THRESH_PACKET);
-
-               /* If too many descs to clean, leave it for another run */
-               if (unlikely(total_tx_descs > cleanup_budget))
-                       break;
        }
-       tx_ring->tx_stats.available_desc =
-               ena_com_free_q_entries(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;
 
+       /* Check adapter state */
+       if (unlikely(tx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) {
+               PMD_DRV_LOG(ALERT,
+                       "Trying to xmit pkts while device is NOT running\n");
+               return 0;
+       }
+
+       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
  *
@@ -2552,7 +2705,7 @@ 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)
@@ -2562,6 +2715,10 @@ 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,
@@ -2597,7 +2754,7 @@ 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;
@@ -2609,7 +2766,7 @@ 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;
@@ -2617,6 +2774,19 @@ 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;
@@ -2653,6 +2823,8 @@ 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 */
@@ -2662,8 +2834,24 @@ 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;
@@ -2709,7 +2897,7 @@ static int ena_process_bool_devarg(const char *key,
        }
 
        /* Now, assign it to the proper adapter field. */
-       if (strcmp(key, ENA_DEVARG_LARGE_LLQ_HDR))
+       if (strcmp(key, ENA_DEVARG_LARGE_LLQ_HDR) == 0)
                adapter->use_large_llq_hdr = bool_value;
 
        return 0;
@@ -2720,6 +2908,7 @@ static int ena_parse_devargs(struct ena_adapter *adapter,
 {
        static const char * const allowed_args[] = {
                ENA_DEVARG_LARGE_LLQ_HDR,
+               NULL,
        };
        struct rte_kvargs *kvlist;
        int rc;
@@ -2769,40 +2958,20 @@ 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_PMD_REGISTER_PARAM_STRING(net_ena, ENA_DEVARG_LARGE_LLQ_HDR "=<0|1>");
-
-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_LOG_REGISTER_SUFFIX(ena_logtype_init, init, NOTICE);
+RTE_LOG_REGISTER_SUFFIX(ena_logtype_driver, driver, NOTICE);
 #ifdef RTE_LIBRTE_ENA_DEBUG_RX
-       ena_logtype_rx = rte_log_register("pmd.net.ena.rx");
-       if (ena_logtype_rx >= 0)
-               rte_log_set_level(ena_logtype_rx, RTE_LOG_NOTICE);
+RTE_LOG_REGISTER_SUFFIX(ena_logtype_rx, rx, NOTICE);
 #endif
-
 #ifdef RTE_LIBRTE_ENA_DEBUG_TX
-       ena_logtype_tx = rte_log_register("pmd.net.ena.tx");
-       if (ena_logtype_tx >= 0)
-               rte_log_set_level(ena_logtype_tx, RTE_LOG_NOTICE);
+RTE_LOG_REGISTER_SUFFIX(ena_logtype_tx, tx, NOTICE);
 #endif
-
 #ifdef RTE_LIBRTE_ENA_DEBUG_TX_FREE
-       ena_logtype_tx_free = rte_log_register("pmd.net.ena.tx_free");
-       if (ena_logtype_tx_free >= 0)
-               rte_log_set_level(ena_logtype_tx_free, RTE_LOG_NOTICE);
+RTE_LOG_REGISTER_SUFFIX(ena_logtype_tx_free, tx_free, NOTICE);
 #endif
-
 #ifdef RTE_LIBRTE_ENA_COM_DEBUG
-       ena_logtype_com = rte_log_register("pmd.net.ena.com");
-       if (ena_logtype_com >= 0)
-               rte_log_set_level(ena_logtype_com, RTE_LOG_NOTICE);
+RTE_LOG_REGISTER_SUFFIX(ena_logtype_com, com, NOTICE);
 #endif
-}
 
 /******************************************************************************
  ******************************** AENQ Handlers *******************************
@@ -2810,49 +2979,49 @@ 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)
-               PMD_DRV_LOG(WARNING, "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:
-               PMD_DRV_LOG(ERR, "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;
@@ -2873,8 +3042,8 @@ 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)
 {
-       PMD_DRV_LOG(ERR, "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 = {