Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

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

1 files changed, 2248 insertions, 0 deletions

diff --git a/src/seastar/dpdk/drivers/net/sfc/sfc_ethdev.c b/src/seastar/dpdk/drivers/net/sfc/sfc_ethdev.c
new file mode 100644
index 000000000..a007d4564
--- /dev/null
+++ b/src/seastar/dpdk/drivers/net/sfc/sfc_ethdev.c
@@ -0,0 +1,2248 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2016-2018 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * This software was jointly developed between OKTET Labs (under contract
+ * for Solarflare) and Solarflare Communications, Inc.
+ */
+
+#include <rte_dev.h>
+#include <rte_ethdev_driver.h>
+#include <rte_ethdev_pci.h>
+#include <rte_pci.h>
+#include <rte_bus_pci.h>
+#include <rte_errno.h>
+#include <rte_string_fns.h>
+#include <rte_ether.h>
+
+#include "efx.h"
+
+#include "sfc.h"
+#include "sfc_debug.h"
+#include "sfc_log.h"
+#include "sfc_kvargs.h"
+#include "sfc_ev.h"
+#include "sfc_rx.h"
+#include "sfc_tx.h"
+#include "sfc_flow.h"
+#include "sfc_dp.h"
+#include "sfc_dp_rx.h"
+
+uint32_t sfc_logtype_driver;
+
+static struct sfc_dp_list sfc_dp_head =
+	TAILQ_HEAD_INITIALIZER(sfc_dp_head);
+
+static int
+sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	efx_nic_fw_info_t enfi;
+	int ret;
+	int rc;
+
+	/*
+	 * Return value of the callback is likely supposed to be
+	 * equal to or greater than 0, nevertheless, if an error
+	 * occurs, it will be desirable to pass it to the caller
+	 */
+	if ((fw_version == NULL) || (fw_size == 0))
+		return -EINVAL;
+
+	rc = efx_nic_get_fw_version(sa->nic, &enfi);
+	if (rc != 0)
+		return -rc;
+
+	ret = snprintf(fw_version, fw_size,
+		       "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
+		       enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
+		       enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
+	if (ret < 0)
+		return ret;
+
+	if (enfi.enfi_dpcpu_fw_ids_valid) {
+		size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
+		int ret_extra;
+
+		ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
+				     fw_size - dpcpu_fw_ids_offset,
+				     " rx%" PRIx16 " tx%" PRIx16,
+				     enfi.enfi_rx_dpcpu_fw_id,
+				     enfi.enfi_tx_dpcpu_fw_id);
+		if (ret_extra < 0)
+			return ret_extra;
+
+		ret += ret_extra;
+	}
+
+	if (fw_size < (size_t)(++ret))
+		return ret;
+	else
+		return 0;
+}
+
+static void
+sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
+{
+	const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct sfc_rss *rss = &sas->rss;
+	uint64_t txq_offloads_def = 0;
+
+	sfc_log_init(sa, "entry");
+
+	dev_info->min_mtu = ETHER_MIN_MTU;
+	dev_info->max_mtu = EFX_MAC_SDU_MAX;
+
+	dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
+
+	/* Autonegotiation may be disabled */
+	dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
+	if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_1000FDX))
+		dev_info->speed_capa |= ETH_LINK_SPEED_1G;
+	if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_10000FDX))
+		dev_info->speed_capa |= ETH_LINK_SPEED_10G;
+	if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_25000FDX))
+		dev_info->speed_capa |= ETH_LINK_SPEED_25G;
+	if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_40000FDX))
+		dev_info->speed_capa |= ETH_LINK_SPEED_40G;
+	if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_50000FDX))
+		dev_info->speed_capa |= ETH_LINK_SPEED_50G;
+	if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_100000FDX))
+		dev_info->speed_capa |= ETH_LINK_SPEED_100G;
+
+	dev_info->max_rx_queues = sa->rxq_max;
+	dev_info->max_tx_queues = sa->txq_max;
+
+	/* By default packets are dropped if no descriptors are available */
+	dev_info->default_rxconf.rx_drop_en = 1;
+
+	dev_info->rx_queue_offload_capa = sfc_rx_get_queue_offload_caps(sa);
+
+	/*
+	 * rx_offload_capa includes both device and queue offloads since
+	 * the latter may be requested on a per device basis which makes
+	 * sense when some offloads are needed to be set on all queues.
+	 */
+	dev_info->rx_offload_capa = sfc_rx_get_dev_offload_caps(sa) |
+				    dev_info->rx_queue_offload_capa;
+
+	dev_info->tx_queue_offload_capa = sfc_tx_get_queue_offload_caps(sa);
+
+	/*
+	 * tx_offload_capa includes both device and queue offloads since
+	 * the latter may be requested on a per device basis which makes
+	 * sense when some offloads are needed to be set on all queues.
+	 */
+	dev_info->tx_offload_capa = sfc_tx_get_dev_offload_caps(sa) |
+				    dev_info->tx_queue_offload_capa;
+
+	if (dev_info->tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
+		txq_offloads_def |= DEV_TX_OFFLOAD_MBUF_FAST_FREE;
+
+	dev_info->default_txconf.offloads |= txq_offloads_def;
+
+	if (rss->context_type != EFX_RX_SCALE_UNAVAILABLE) {
+		uint64_t rte_hf = 0;
+		unsigned int i;
+
+		for (i = 0; i < rss->hf_map_nb_entries; ++i)
+			rte_hf |= rss->hf_map[i].rte;
+
+		dev_info->reta_size = EFX_RSS_TBL_SIZE;
+		dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
+		dev_info->flow_type_rss_offloads = rte_hf;
+	}
+
+	/* Initialize to hardware limits */
+	dev_info->rx_desc_lim.nb_max = sa->rxq_max_entries;
+	dev_info->rx_desc_lim.nb_min = sa->rxq_min_entries;
+	/* The RXQ hardware requires that the descriptor count is a power
+	 * of 2, but rx_desc_lim cannot properly describe that constraint.
+	 */
+	dev_info->rx_desc_lim.nb_align = sa->rxq_min_entries;
+
+	/* Initialize to hardware limits */
+	dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
+	dev_info->tx_desc_lim.nb_min = sa->txq_min_entries;
+	/*
+	 * The TXQ hardware requires that the descriptor count is a power
+	 * of 2, but tx_desc_lim cannot properly describe that constraint
+	 */
+	dev_info->tx_desc_lim.nb_align = sa->txq_min_entries;
+
+	if (sap->dp_rx->get_dev_info != NULL)
+		sap->dp_rx->get_dev_info(dev_info);
+	if (sap->dp_tx->get_dev_info != NULL)
+		sap->dp_tx->get_dev_info(dev_info);
+
+	dev_info->dev_capa = RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP |
+			     RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP;
+}
+
+static const uint32_t *
+sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
+{
+	const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
+
+	return sap->dp_rx->supported_ptypes_get(sap->shared->tunnel_encaps);
+}
+
+static int
+sfc_dev_configure(struct rte_eth_dev *dev)
+{
+	struct rte_eth_dev_data *dev_data = dev->data;
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	int rc;
+
+	sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
+		     dev_data->nb_rx_queues, dev_data->nb_tx_queues);
+
+	sfc_adapter_lock(sa);
+	switch (sa->state) {
+	case SFC_ADAPTER_CONFIGURED:
+		/* FALLTHROUGH */
+	case SFC_ADAPTER_INITIALIZED:
+		rc = sfc_configure(sa);
+		break;
+	default:
+		sfc_err(sa, "unexpected adapter state %u to configure",
+			sa->state);
+		rc = EINVAL;
+		break;
+	}
+	sfc_adapter_unlock(sa);
+
+	sfc_log_init(sa, "done %d", rc);
+	SFC_ASSERT(rc >= 0);
+	return -rc;
+}
+
+static int
+sfc_dev_start(struct rte_eth_dev *dev)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	int rc;
+
+	sfc_log_init(sa, "entry");
+
+	sfc_adapter_lock(sa);
+	rc = sfc_start(sa);
+	sfc_adapter_unlock(sa);
+
+	sfc_log_init(sa, "done %d", rc);
+	SFC_ASSERT(rc >= 0);
+	return -rc;
+}
+
+static int
+sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct rte_eth_link current_link;
+	int ret;
+
+	sfc_log_init(sa, "entry");
+
+	if (sa->state != SFC_ADAPTER_STARTED) {
+		sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
+	} else if (wait_to_complete) {
+		efx_link_mode_t link_mode;
+
+		if (efx_port_poll(sa->nic, &link_mode) != 0)
+			link_mode = EFX_LINK_UNKNOWN;
+		sfc_port_link_mode_to_info(link_mode, &current_link);
+
+	} else {
+		sfc_ev_mgmt_qpoll(sa);
+		rte_eth_linkstatus_get(dev, &current_link);
+	}
+
+	ret = rte_eth_linkstatus_set(dev, &current_link);
+	if (ret == 0)
+		sfc_notice(sa, "Link status is %s",
+			   current_link.link_status ? "UP" : "DOWN");
+
+	return ret;
+}
+
+static void
+sfc_dev_stop(struct rte_eth_dev *dev)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+
+	sfc_log_init(sa, "entry");
+
+	sfc_adapter_lock(sa);
+	sfc_stop(sa);
+	sfc_adapter_unlock(sa);
+
+	sfc_log_init(sa, "done");
+}
+
+static int
+sfc_dev_set_link_up(struct rte_eth_dev *dev)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	int rc;
+
+	sfc_log_init(sa, "entry");
+
+	sfc_adapter_lock(sa);
+	rc = sfc_start(sa);
+	sfc_adapter_unlock(sa);
+
+	SFC_ASSERT(rc >= 0);
+	return -rc;
+}
+
+static int
+sfc_dev_set_link_down(struct rte_eth_dev *dev)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+
+	sfc_log_init(sa, "entry");
+
+	sfc_adapter_lock(sa);
+	sfc_stop(sa);
+	sfc_adapter_unlock(sa);
+
+	return 0;
+}
+
+static void
+sfc_dev_close(struct rte_eth_dev *dev)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+
+	sfc_log_init(sa, "entry");
+
+	sfc_adapter_lock(sa);
+	switch (sa->state) {
+	case SFC_ADAPTER_STARTED:
+		sfc_stop(sa);
+		SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
+		/* FALLTHROUGH */
+	case SFC_ADAPTER_CONFIGURED:
+		sfc_close(sa);
+		SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
+		/* FALLTHROUGH */
+	case SFC_ADAPTER_INITIALIZED:
+		break;
+	default:
+		sfc_err(sa, "unexpected adapter state %u on close", sa->state);
+		break;
+	}
+	sfc_adapter_unlock(sa);
+
+	sfc_log_init(sa, "done");
+}
+
+static void
+sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
+		   boolean_t enabled)
+{
+	struct sfc_port *port;
+	boolean_t *toggle;
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
+	const char *desc = (allmulti) ? "all-multi" : "promiscuous";
+
+	sfc_adapter_lock(sa);
+
+	port = &sa->port;
+	toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
+
+	if (*toggle != enabled) {
+		*toggle = enabled;
+
+		if (sfc_sa2shared(sa)->isolated) {
+			sfc_warn(sa, "isolated mode is active on the port");
+			sfc_warn(sa, "the change is to be applied on the next "
+				     "start provided that isolated mode is "
+				     "disabled prior the next start");
+		} else if ((sa->state == SFC_ADAPTER_STARTED) &&
+			   (sfc_set_rx_mode(sa) != 0)) {
+			*toggle = !(enabled);
+			sfc_warn(sa, "Failed to %s %s mode",
+				 ((enabled) ? "enable" : "disable"), desc);
+		}
+	}
+
+	sfc_adapter_unlock(sa);
+}
+
+static void
+sfc_dev_promisc_enable(struct rte_eth_dev *dev)
+{
+	sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
+}
+
+static void
+sfc_dev_promisc_disable(struct rte_eth_dev *dev)
+{
+	sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
+}
+
+static void
+sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
+{
+	sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
+}
+
+static void
+sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
+{
+	sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
+}
+
+static int
+sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
+		   uint16_t nb_rx_desc, unsigned int socket_id,
+		   const struct rte_eth_rxconf *rx_conf,
+		   struct rte_mempool *mb_pool)
+{
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	int rc;
+
+	sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
+		     rx_queue_id, nb_rx_desc, socket_id);
+
+	sfc_adapter_lock(sa);
+
+	rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
+			  rx_conf, mb_pool);
+	if (rc != 0)
+		goto fail_rx_qinit;
+
+	dev->data->rx_queues[rx_queue_id] = sas->rxq_info[rx_queue_id].dp;
+
+	sfc_adapter_unlock(sa);
+
+	return 0;
+
+fail_rx_qinit:
+	sfc_adapter_unlock(sa);
+	SFC_ASSERT(rc > 0);
+	return -rc;
+}
+
+static void
+sfc_rx_queue_release(void *queue)
+{
+	struct sfc_dp_rxq *dp_rxq = queue;
+	struct sfc_rxq *rxq;
+	struct sfc_adapter *sa;
+	unsigned int sw_index;
+
+	if (dp_rxq == NULL)
+		return;
+
+	rxq = sfc_rxq_by_dp_rxq(dp_rxq);
+	sa = rxq->evq->sa;
+	sfc_adapter_lock(sa);
+
+	sw_index = dp_rxq->dpq.queue_id;
+
+	sfc_log_init(sa, "RxQ=%u", sw_index);
+
+	sfc_rx_qfini(sa, sw_index);
+
+	sfc_adapter_unlock(sa);
+}
+
+static int
+sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
+		   uint16_t nb_tx_desc, unsigned int socket_id,
+		   const struct rte_eth_txconf *tx_conf)
+{
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	int rc;
+
+	sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
+		     tx_queue_id, nb_tx_desc, socket_id);
+
+	sfc_adapter_lock(sa);
+
+	rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
+	if (rc != 0)
+		goto fail_tx_qinit;
+
+	dev->data->tx_queues[tx_queue_id] = sas->txq_info[tx_queue_id].dp;
+
+	sfc_adapter_unlock(sa);
+	return 0;
+
+fail_tx_qinit:
+	sfc_adapter_unlock(sa);
+	SFC_ASSERT(rc > 0);
+	return -rc;
+}
+
+static void
+sfc_tx_queue_release(void *queue)
+{
+	struct sfc_dp_txq *dp_txq = queue;
+	struct sfc_txq *txq;
+	unsigned int sw_index;
+	struct sfc_adapter *sa;
+
+	if (dp_txq == NULL)
+		return;
+
+	txq = sfc_txq_by_dp_txq(dp_txq);
+	sw_index = dp_txq->dpq.queue_id;
+
+	SFC_ASSERT(txq->evq != NULL);
+	sa = txq->evq->sa;
+
+	sfc_log_init(sa, "TxQ = %u", sw_index);
+
+	sfc_adapter_lock(sa);
+
+	sfc_tx_qfini(sa, sw_index);
+
+	sfc_adapter_unlock(sa);
+}
+
+/*
+ * Some statistics are computed as A - B where A and B each increase
+ * monotonically with some hardware counter(s) and the counters are read
+ * asynchronously.
+ *
+ * If packet X is counted in A, but not counted in B yet, computed value is
+ * greater than real.
+ *
+ * If packet X is not counted in A at the moment of reading the counter,
+ * but counted in B at the moment of reading the counter, computed value
+ * is less than real.
+ *
+ * However, counter which grows backward is worse evil than slightly wrong
+ * value. So, let's try to guarantee that it never happens except may be
+ * the case when the MAC stats are zeroed as a result of a NIC reset.
+ */
+static void
+sfc_update_diff_stat(uint64_t *stat, uint64_t newval)
+{
+	if ((int64_t)(newval - *stat) > 0 || newval == 0)
+		*stat = newval;
+}
+
+static int
+sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct sfc_port *port = &sa->port;
+	uint64_t *mac_stats;
+	int ret;
+
+	rte_spinlock_lock(&port->mac_stats_lock);
+
+	ret = sfc_port_update_mac_stats(sa);
+	if (ret != 0)
+		goto unlock;
+
+	mac_stats = port->mac_stats_buf;
+
+	if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
+				   EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
+		stats->ipackets =
+			mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
+			mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
+			mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
+		stats->opackets =
+			mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
+			mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
+			mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
+		stats->ibytes =
+			mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
+			mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
+			mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
+		stats->obytes =
+			mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
+			mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
+			mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
+		stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
+		stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
+	} else {
+		stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
+		stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
+		stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
+		/*
+		 * Take into account stats which are whenever supported
+		 * on EF10. If some stat is not supported by current
+		 * firmware variant or HW revision, it is guaranteed
+		 * to be zero in mac_stats.
+		 */
+		stats->imissed =
+			mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
+			mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
+			mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
+			mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
+			mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
+			mac_stats[EFX_MAC_PM_TRUNC_QBB] +
+			mac_stats[EFX_MAC_PM_DISCARD_QBB] +
+			mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
+			mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
+			mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
+		stats->ierrors =
+			mac_stats[EFX_MAC_RX_FCS_ERRORS] +
+			mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
+			mac_stats[EFX_MAC_RX_JABBER_PKTS];
+		/* no oerrors counters supported on EF10 */
+
+		/* Exclude missed, errors and pauses from Rx packets */
+		sfc_update_diff_stat(&port->ipackets,
+			mac_stats[EFX_MAC_RX_PKTS] -
+			mac_stats[EFX_MAC_RX_PAUSE_PKTS] -
+			stats->imissed - stats->ierrors);
+		stats->ipackets = port->ipackets;
+	}
+
+unlock:
+	rte_spinlock_unlock(&port->mac_stats_lock);
+	SFC_ASSERT(ret >= 0);
+	return -ret;
+}
+
+static void
+sfc_stats_reset(struct rte_eth_dev *dev)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct sfc_port *port = &sa->port;
+	int rc;
+
+	if (sa->state != SFC_ADAPTER_STARTED) {
+		/*
+		 * The operation cannot be done if port is not started; it
+		 * will be scheduled to be done during the next port start
+		 */
+		port->mac_stats_reset_pending = B_TRUE;
+		return;
+	}
+
+	rc = sfc_port_reset_mac_stats(sa);
+	if (rc != 0)
+		sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
+}
+
+static int
+sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
+	       unsigned int xstats_count)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct sfc_port *port = &sa->port;
+	uint64_t *mac_stats;
+	int rc;
+	unsigned int i;
+	int nstats = 0;
+
+	rte_spinlock_lock(&port->mac_stats_lock);
+
+	rc = sfc_port_update_mac_stats(sa);
+	if (rc != 0) {
+		SFC_ASSERT(rc > 0);
+		nstats = -rc;
+		goto unlock;
+	}
+
+	mac_stats = port->mac_stats_buf;
+
+	for (i = 0; i < EFX_MAC_NSTATS; ++i) {
+		if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
+			if (xstats != NULL && nstats < (int)xstats_count) {
+				xstats[nstats].id = nstats;
+				xstats[nstats].value = mac_stats[i];
+			}
+			nstats++;
+		}
+	}
+
+unlock:
+	rte_spinlock_unlock(&port->mac_stats_lock);
+
+	return nstats;
+}
+
+static int
+sfc_xstats_get_names(struct rte_eth_dev *dev,
+		     struct rte_eth_xstat_name *xstats_names,
+		     unsigned int xstats_count)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct sfc_port *port = &sa->port;
+	unsigned int i;
+	unsigned int nstats = 0;
+
+	for (i = 0; i < EFX_MAC_NSTATS; ++i) {
+		if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
+			if (xstats_names != NULL && nstats < xstats_count)
+				strlcpy(xstats_names[nstats].name,
+					efx_mac_stat_name(sa->nic, i),
+					sizeof(xstats_names[0].name));
+			nstats++;
+		}
+	}
+
+	return nstats;
+}
+
+static int
+sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
+		     uint64_t *values, unsigned int n)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct sfc_port *port = &sa->port;
+	uint64_t *mac_stats;
+	unsigned int nb_supported = 0;
+	unsigned int nb_written = 0;
+	unsigned int i;
+	int ret;
+	int rc;
+
+	if (unlikely(values == NULL) ||
+	    unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
+		return port->mac_stats_nb_supported;
+
+	rte_spinlock_lock(&port->mac_stats_lock);
+
+	rc = sfc_port_update_mac_stats(sa);
+	if (rc != 0) {
+		SFC_ASSERT(rc > 0);
+		ret = -rc;
+		goto unlock;
+	}
+
+	mac_stats = port->mac_stats_buf;
+
+	for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
+		if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
+			continue;
+
+		if ((ids == NULL) || (ids[nb_written] == nb_supported))
+			values[nb_written++] = mac_stats[i];
+
+		++nb_supported;
+	}
+
+	ret = nb_written;
+
+unlock:
+	rte_spinlock_unlock(&port->mac_stats_lock);
+
+	return ret;
+}
+
+static int
+sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
+			   struct rte_eth_xstat_name *xstats_names,
+			   const uint64_t *ids, unsigned int size)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct sfc_port *port = &sa->port;
+	unsigned int nb_supported = 0;
+	unsigned int nb_written = 0;
+	unsigned int i;
+
+	if (unlikely(xstats_names == NULL) ||
+	    unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
+		return port->mac_stats_nb_supported;
+
+	for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
+		if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
+			continue;
+
+		if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
+			char *name = xstats_names[nb_written++].name;
+
+			strlcpy(name, efx_mac_stat_name(sa->nic, i),
+				sizeof(xstats_names[0].name));
+		}
+
+		++nb_supported;
+	}
+
+	return nb_written;
+}
+
+static int
+sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	unsigned int wanted_fc, link_fc;
+
+	memset(fc_conf, 0, sizeof(*fc_conf));
+
+	sfc_adapter_lock(sa);
+
+	if (sa->state == SFC_ADAPTER_STARTED)
+		efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
+	else
+		link_fc = sa->port.flow_ctrl;
+
+	switch (link_fc) {
+	case 0:
+		fc_conf->mode = RTE_FC_NONE;
+		break;
+	case EFX_FCNTL_RESPOND:
+		fc_conf->mode = RTE_FC_RX_PAUSE;
+		break;
+	case EFX_FCNTL_GENERATE:
+		fc_conf->mode = RTE_FC_TX_PAUSE;
+		break;
+	case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
+		fc_conf->mode = RTE_FC_FULL;
+		break;
+	default:
+		sfc_err(sa, "%s: unexpected flow control value %#x",
+			__func__, link_fc);
+	}
+
+	fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
+
+	sfc_adapter_unlock(sa);
+
+	return 0;
+}
+
+static int
+sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct sfc_port *port = &sa->port;
+	unsigned int fcntl;
+	int rc;
+
+	if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
+	    fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
+	    fc_conf->mac_ctrl_frame_fwd != 0) {
+		sfc_err(sa, "unsupported flow control settings specified");
+		rc = EINVAL;
+		goto fail_inval;
+	}
+
+	switch (fc_conf->mode) {
+	case RTE_FC_NONE:
+		fcntl = 0;
+		break;
+	case RTE_FC_RX_PAUSE:
+		fcntl = EFX_FCNTL_RESPOND;
+		break;
+	case RTE_FC_TX_PAUSE:
+		fcntl = EFX_FCNTL_GENERATE;
+		break;
+	case RTE_FC_FULL:
+		fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
+		break;
+	default:
+		rc = EINVAL;
+		goto fail_inval;
+	}
+
+	sfc_adapter_lock(sa);
+
+	if (sa->state == SFC_ADAPTER_STARTED) {
+		rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
+		if (rc != 0)
+			goto fail_mac_fcntl_set;
+	}
+
+	port->flow_ctrl = fcntl;
+	port->flow_ctrl_autoneg = fc_conf->autoneg;
+
+	sfc_adapter_unlock(sa);
+
+	return 0;
+
+fail_mac_fcntl_set:
+	sfc_adapter_unlock(sa);
+fail_inval:
+	SFC_ASSERT(rc > 0);
+	return -rc;
+}
+
+static int
+sfc_check_scatter_on_all_rx_queues(struct sfc_adapter *sa, size_t pdu)
+{
+	struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
+	const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
+	boolean_t scatter_enabled;
+	const char *error;
+	unsigned int i;
+
+	for (i = 0; i < sas->rxq_count; i++) {
+		if ((sas->rxq_info[i].state & SFC_RXQ_INITIALIZED) == 0)
+			continue;
+
+		scatter_enabled = (sas->rxq_info[i].type_flags &
+				   EFX_RXQ_FLAG_SCATTER);
+
+		if (!sfc_rx_check_scatter(pdu, sa->rxq_ctrl[i].buf_size,
+					  encp->enc_rx_prefix_size,
+					  scatter_enabled, &error)) {
+			sfc_err(sa, "MTU check for RxQ %u failed: %s", i,
+				error);
+			return EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static int
+sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	size_t pdu = EFX_MAC_PDU(mtu);
+	size_t old_pdu;
+	int rc;
+
+	sfc_log_init(sa, "mtu=%u", mtu);
+
+	rc = EINVAL;
+	if (pdu < EFX_MAC_PDU_MIN) {
+		sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
+			(unsigned int)mtu, (unsigned int)pdu,
+			EFX_MAC_PDU_MIN);
+		goto fail_inval;
+	}
+	if (pdu > EFX_MAC_PDU_MAX) {
+		sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
+			(unsigned int)mtu, (unsigned int)pdu,
+			EFX_MAC_PDU_MAX);
+		goto fail_inval;
+	}
+
+	sfc_adapter_lock(sa);
+
+	rc = sfc_check_scatter_on_all_rx_queues(sa, pdu);
+	if (rc != 0)
+		goto fail_check_scatter;
+
+	if (pdu != sa->port.pdu) {
+		if (sa->state == SFC_ADAPTER_STARTED) {
+			sfc_stop(sa);
+
+			old_pdu = sa->port.pdu;
+			sa->port.pdu = pdu;
+			rc = sfc_start(sa);
+			if (rc != 0)
+				goto fail_start;
+		} else {
+			sa->port.pdu = pdu;
+		}
+	}
+
+	/*
+	 * The driver does not use it, but other PMDs update jumbo frame
+	 * flag and max_rx_pkt_len when MTU is set.
+	 */
+	if (mtu > ETHER_MAX_LEN) {
+		struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
+		rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
+	}
+
+	dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
+
+	sfc_adapter_unlock(sa);
+
+	sfc_log_init(sa, "done");
+	return 0;
+
+fail_start:
+	sa->port.pdu = old_pdu;
+	if (sfc_start(sa) != 0)
+		sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
+			"PDU max size - port is stopped",
+			(unsigned int)pdu, (unsigned int)old_pdu);
+
+fail_check_scatter:
+	sfc_adapter_unlock(sa);
+
+fail_inval:
+	sfc_log_init(sa, "failed %d", rc);
+	SFC_ASSERT(rc > 0);
+	return -rc;
+}
+static int
+sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
+	struct sfc_port *port = &sa->port;
+	struct ether_addr *old_addr = &dev->data->mac_addrs[0];
+	int rc = 0;
+
+	sfc_adapter_lock(sa);
+
+	/*
+	 * Copy the address to the device private data so that
+	 * it could be recalled in the case of adapter restart.
+	 */
+	ether_addr_copy(mac_addr, &port->default_mac_addr);
+
+	/*
+	 * Neither of the two following checks can return
+	 * an error. The new MAC address is preserved in
+	 * the device private data and can be activated
+	 * on the next port start if the user prevents
+	 * isolated mode from being enabled.
+	 */
+	if (sfc_sa2shared(sa)->isolated) {
+		sfc_warn(sa, "isolated mode is active on the port");
+		sfc_warn(sa, "will not set MAC address");
+		goto unlock;
+	}
+
+	if (sa->state != SFC_ADAPTER_STARTED) {
+		sfc_notice(sa, "the port is not started");
+		sfc_notice(sa, "the new MAC address will be set on port start");
+
+		goto unlock;
+	}
+
+	if (encp->enc_allow_set_mac_with_installed_filters) {
+		rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
+		if (rc != 0) {
+			sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
+			goto unlock;
+		}
+
+		/*
+		 * Changing the MAC address by means of MCDI request
+		 * has no effect on received traffic, therefore
+		 * we also need to update unicast filters
+		 */
+		rc = sfc_set_rx_mode(sa);
+		if (rc != 0) {
+			sfc_err(sa, "cannot set filter (rc = %u)", rc);
+			/* Rollback the old address */
+			(void)efx_mac_addr_set(sa->nic, old_addr->addr_bytes);
+			(void)sfc_set_rx_mode(sa);
+		}
+	} else {
+		sfc_warn(sa, "cannot set MAC address with filters installed");
+		sfc_warn(sa, "adapter will be restarted to pick the new MAC");
+		sfc_warn(sa, "(some traffic may be dropped)");
+
+		/*
+		 * Since setting MAC address with filters installed is not
+		 * allowed on the adapter, the new MAC address will be set
+		 * by means of adapter restart. sfc_start() shall retrieve
+		 * the new address from the device private data and set it.
+		 */
+		sfc_stop(sa);
+		rc = sfc_start(sa);
+		if (rc != 0)
+			sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
+	}
+
+unlock:
+	if (rc != 0)
+		ether_addr_copy(old_addr, &port->default_mac_addr);
+
+	sfc_adapter_unlock(sa);
+
+	SFC_ASSERT(rc >= 0);
+	return -rc;
+}
+
+
+static int
+sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
+		     uint32_t nb_mc_addr)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct sfc_port *port = &sa->port;
+	uint8_t *mc_addrs = port->mcast_addrs;
+	int rc;
+	unsigned int i;
+
+	if (sfc_sa2shared(sa)->isolated) {
+		sfc_err(sa, "isolated mode is active on the port");
+		sfc_err(sa, "will not set multicast address list");
+		return -ENOTSUP;
+	}
+
+	if (mc_addrs == NULL)
+		return -ENOBUFS;
+
+	if (nb_mc_addr > port->max_mcast_addrs) {
+		sfc_err(sa, "too many multicast addresses: %u > %u",
+			 nb_mc_addr, port->max_mcast_addrs);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < nb_mc_addr; ++i) {
+		rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
+				 EFX_MAC_ADDR_LEN);
+		mc_addrs += EFX_MAC_ADDR_LEN;
+	}
+
+	port->nb_mcast_addrs = nb_mc_addr;
+
+	if (sa->state != SFC_ADAPTER_STARTED)
+		return 0;
+
+	rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
+					port->nb_mcast_addrs);
+	if (rc != 0)
+		sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
+
+	SFC_ASSERT(rc >= 0);
+	return -rc;
+}
+
+/*
+ * The function is used by the secondary process as well. It must not
+ * use any process-local pointers from the adapter data.
+ */
+static void
+sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
+		      struct rte_eth_rxq_info *qinfo)
+{
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct sfc_rxq_info *rxq_info;
+
+	SFC_ASSERT(rx_queue_id < sas->rxq_count);
+
+	rxq_info = &sas->rxq_info[rx_queue_id];
+
+	qinfo->mp = rxq_info->refill_mb_pool;
+	qinfo->conf.rx_free_thresh = rxq_info->refill_threshold;
+	qinfo->conf.rx_drop_en = 1;
+	qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
+	qinfo->conf.offloads = dev->data->dev_conf.rxmode.offloads;
+	if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
+		qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
+		qinfo->scattered_rx = 1;
+	}
+	qinfo->nb_desc = rxq_info->entries;
+}
+
+/*
+ * The function is used by the secondary process as well. It must not
+ * use any process-local pointers from the adapter data.
+ */
+static void
+sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
+		      struct rte_eth_txq_info *qinfo)
+{
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct sfc_txq_info *txq_info;
+
+	SFC_ASSERT(tx_queue_id < sas->txq_count);
+
+	txq_info = &sas->txq_info[tx_queue_id];
+
+	memset(qinfo, 0, sizeof(*qinfo));
+
+	qinfo->conf.offloads = txq_info->offloads;
+	qinfo->conf.tx_free_thresh = txq_info->free_thresh;
+	qinfo->conf.tx_deferred_start = txq_info->deferred_start;
+	qinfo->nb_desc = txq_info->entries;
+}
+
+/*
+ * The function is used by the secondary process as well. It must not
+ * use any process-local pointers from the adapter data.
+ */
+static uint32_t
+sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
+{
+	const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct sfc_rxq_info *rxq_info;
+
+	SFC_ASSERT(rx_queue_id < sas->rxq_count);
+	rxq_info = &sas->rxq_info[rx_queue_id];
+
+	if ((rxq_info->state & SFC_RXQ_STARTED) == 0)
+		return 0;
+
+	return sap->dp_rx->qdesc_npending(rxq_info->dp);
+}
+
+/*
+ * The function is used by the secondary process as well. It must not
+ * use any process-local pointers from the adapter data.
+ */
+static int
+sfc_rx_descriptor_done(void *queue, uint16_t offset)
+{
+	struct sfc_dp_rxq *dp_rxq = queue;
+	const struct sfc_dp_rx *dp_rx;
+
+	dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
+
+	return offset < dp_rx->qdesc_npending(dp_rxq);
+}
+
+/*
+ * The function is used by the secondary process as well. It must not
+ * use any process-local pointers from the adapter data.
+ */
+static int
+sfc_rx_descriptor_status(void *queue, uint16_t offset)
+{
+	struct sfc_dp_rxq *dp_rxq = queue;
+	const struct sfc_dp_rx *dp_rx;
+
+	dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
+
+	return dp_rx->qdesc_status(dp_rxq, offset);
+}
+
+/*
+ * The function is used by the secondary process as well. It must not
+ * use any process-local pointers from the adapter data.
+ */
+static int
+sfc_tx_descriptor_status(void *queue, uint16_t offset)
+{
+	struct sfc_dp_txq *dp_txq = queue;
+	const struct sfc_dp_tx *dp_tx;
+
+	dp_tx = sfc_dp_tx_by_dp_txq(dp_txq);
+
+	return dp_tx->qdesc_status(dp_txq, offset);
+}
+
+static int
+sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
+{
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	int rc;
+
+	sfc_log_init(sa, "RxQ=%u", rx_queue_id);
+
+	sfc_adapter_lock(sa);
+
+	rc = EINVAL;
+	if (sa->state != SFC_ADAPTER_STARTED)
+		goto fail_not_started;
+
+	if (sas->rxq_info[rx_queue_id].state != SFC_RXQ_INITIALIZED)
+		goto fail_not_setup;
+
+	rc = sfc_rx_qstart(sa, rx_queue_id);
+	if (rc != 0)
+		goto fail_rx_qstart;
+
+	sas->rxq_info[rx_queue_id].deferred_started = B_TRUE;
+
+	sfc_adapter_unlock(sa);
+
+	return 0;
+
+fail_rx_qstart:
+fail_not_setup:
+fail_not_started:
+	sfc_adapter_unlock(sa);
+	SFC_ASSERT(rc > 0);
+	return -rc;
+}
+
+static int
+sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
+{
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+
+	sfc_log_init(sa, "RxQ=%u", rx_queue_id);
+
+	sfc_adapter_lock(sa);
+	sfc_rx_qstop(sa, rx_queue_id);
+
+	sas->rxq_info[rx_queue_id].deferred_started = B_FALSE;
+
+	sfc_adapter_unlock(sa);
+
+	return 0;
+}
+
+static int
+sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
+{
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	int rc;
+
+	sfc_log_init(sa, "TxQ = %u", tx_queue_id);
+
+	sfc_adapter_lock(sa);
+
+	rc = EINVAL;
+	if (sa->state != SFC_ADAPTER_STARTED)
+		goto fail_not_started;
+
+	if (sas->txq_info[tx_queue_id].state != SFC_TXQ_INITIALIZED)
+		goto fail_not_setup;
+
+	rc = sfc_tx_qstart(sa, tx_queue_id);
+	if (rc != 0)
+		goto fail_tx_qstart;
+
+	sas->txq_info[tx_queue_id].deferred_started = B_TRUE;
+
+	sfc_adapter_unlock(sa);
+	return 0;
+
+fail_tx_qstart:
+
+fail_not_setup:
+fail_not_started:
+	sfc_adapter_unlock(sa);
+	SFC_ASSERT(rc > 0);
+	return -rc;
+}
+
+static int
+sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
+{
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+
+	sfc_log_init(sa, "TxQ = %u", tx_queue_id);
+
+	sfc_adapter_lock(sa);
+
+	sfc_tx_qstop(sa, tx_queue_id);
+
+	sas->txq_info[tx_queue_id].deferred_started = B_FALSE;
+
+	sfc_adapter_unlock(sa);
+	return 0;
+}
+
+static efx_tunnel_protocol_t
+sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
+{
+	switch (rte_type) {
+	case RTE_TUNNEL_TYPE_VXLAN:
+		return EFX_TUNNEL_PROTOCOL_VXLAN;
+	case RTE_TUNNEL_TYPE_GENEVE:
+		return EFX_TUNNEL_PROTOCOL_GENEVE;
+	default:
+		return EFX_TUNNEL_NPROTOS;
+	}
+}
+
+enum sfc_udp_tunnel_op_e {
+	SFC_UDP_TUNNEL_ADD_PORT,
+	SFC_UDP_TUNNEL_DEL_PORT,
+};
+
+static int
+sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
+		      struct rte_eth_udp_tunnel *tunnel_udp,
+		      enum sfc_udp_tunnel_op_e op)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	efx_tunnel_protocol_t tunnel_proto;
+	int rc;
+
+	sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
+		     (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
+		     (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
+		     tunnel_udp->udp_port, tunnel_udp->prot_type);
+
+	tunnel_proto =
+		sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
+	if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
+		rc = ENOTSUP;
+		goto fail_bad_proto;
+	}
+
+	sfc_adapter_lock(sa);
+
+	switch (op) {
+	case SFC_UDP_TUNNEL_ADD_PORT:
+		rc = efx_tunnel_config_udp_add(sa->nic,
+					       tunnel_udp->udp_port,
+					       tunnel_proto);
+		break;
+	case SFC_UDP_TUNNEL_DEL_PORT:
+		rc = efx_tunnel_config_udp_remove(sa->nic,
+						  tunnel_udp->udp_port,
+						  tunnel_proto);
+		break;
+	default:
+		rc = EINVAL;
+		goto fail_bad_op;
+	}
+
+	if (rc != 0)
+		goto fail_op;
+
+	if (sa->state == SFC_ADAPTER_STARTED) {
+		rc = efx_tunnel_reconfigure(sa->nic);
+		if (rc == EAGAIN) {
+			/*
+			 * Configuration is accepted by FW and MC reboot
+			 * is initiated to apply the changes. MC reboot
+			 * will be handled in a usual way (MC reboot
+			 * event on management event queue and adapter
+			 * restart).
+			 */
+			rc = 0;
+		} else if (rc != 0) {
+			goto fail_reconfigure;
+		}
+	}
+
+	sfc_adapter_unlock(sa);
+	return 0;
+
+fail_reconfigure:
+	/* Remove/restore entry since the change makes the trouble */
+	switch (op) {
+	case SFC_UDP_TUNNEL_ADD_PORT:
+		(void)efx_tunnel_config_udp_remove(sa->nic,
+						   tunnel_udp->udp_port,
+						   tunnel_proto);
+		break;
+	case SFC_UDP_TUNNEL_DEL_PORT:
+		(void)efx_tunnel_config_udp_add(sa->nic,
+						tunnel_udp->udp_port,
+						tunnel_proto);
+		break;
+	}
+
+fail_op:
+fail_bad_op:
+	sfc_adapter_unlock(sa);
+
+fail_bad_proto:
+	SFC_ASSERT(rc > 0);
+	return -rc;
+}
+
+static int
+sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
+			    struct rte_eth_udp_tunnel *tunnel_udp)
+{
+	return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
+}
+
+static int
+sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
+			    struct rte_eth_udp_tunnel *tunnel_udp)
+{
+	return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
+}
+
+/*
+ * The function is used by the secondary process as well. It must not
+ * use any process-local pointers from the adapter data.
+ */
+static int
+sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
+			  struct rte_eth_rss_conf *rss_conf)
+{
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct sfc_rss *rss = &sas->rss;
+
+	if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE)
+		return -ENOTSUP;
+
+	/*
+	 * Mapping of hash configuration between RTE and EFX is not one-to-one,
+	 * hence, conversion is done here to derive a correct set of ETH_RSS
+	 * flags which corresponds to the active EFX configuration stored
+	 * locally in 'sfc_adapter' and kept up-to-date
+	 */
+	rss_conf->rss_hf = sfc_rx_hf_efx_to_rte(rss, rss->hash_types);
+	rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
+	if (rss_conf->rss_key != NULL)
+		rte_memcpy(rss_conf->rss_key, rss->key, EFX_RSS_KEY_SIZE);
+
+	return 0;
+}
+
+static int
+sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
+			struct rte_eth_rss_conf *rss_conf)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
+	unsigned int efx_hash_types;
+	int rc = 0;
+
+	if (sfc_sa2shared(sa)->isolated)
+		return -ENOTSUP;
+
+	if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
+		sfc_err(sa, "RSS is not available");
+		return -ENOTSUP;
+	}
+
+	if (rss->channels == 0) {
+		sfc_err(sa, "RSS is not configured");
+		return -EINVAL;
+	}
+
+	if ((rss_conf->rss_key != NULL) &&
+	    (rss_conf->rss_key_len != sizeof(rss->key))) {
+		sfc_err(sa, "RSS key size is wrong (should be %lu)",
+			sizeof(rss->key));
+		return -EINVAL;
+	}
+
+	sfc_adapter_lock(sa);
+
+	rc = sfc_rx_hf_rte_to_efx(sa, rss_conf->rss_hf, &efx_hash_types);
+	if (rc != 0)
+		goto fail_rx_hf_rte_to_efx;
+
+	rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
+				   rss->hash_alg, efx_hash_types, B_TRUE);
+	if (rc != 0)
+		goto fail_scale_mode_set;
+
+	if (rss_conf->rss_key != NULL) {
+		if (sa->state == SFC_ADAPTER_STARTED) {
+			rc = efx_rx_scale_key_set(sa->nic,
+						  EFX_RSS_CONTEXT_DEFAULT,
+						  rss_conf->rss_key,
+						  sizeof(rss->key));
+			if (rc != 0)
+				goto fail_scale_key_set;
+		}
+
+		rte_memcpy(rss->key, rss_conf->rss_key, sizeof(rss->key));
+	}
+
+	rss->hash_types = efx_hash_types;
+
+	sfc_adapter_unlock(sa);
+
+	return 0;
+
+fail_scale_key_set:
+	if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
+				  EFX_RX_HASHALG_TOEPLITZ,
+				  rss->hash_types, B_TRUE) != 0)
+		sfc_err(sa, "failed to restore RSS mode");
+
+fail_scale_mode_set:
+fail_rx_hf_rte_to_efx:
+	sfc_adapter_unlock(sa);
+	return -rc;
+}
+
+/*
+ * The function is used by the secondary process as well. It must not
+ * use any process-local pointers from the adapter data.
+ */
+static int
+sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
+		       struct rte_eth_rss_reta_entry64 *reta_conf,
+		       uint16_t reta_size)
+{
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct sfc_rss *rss = &sas->rss;
+	int entry;
+
+	if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || sas->isolated)
+		return -ENOTSUP;
+
+	if (rss->channels == 0)
+		return -EINVAL;
+
+	if (reta_size != EFX_RSS_TBL_SIZE)
+		return -EINVAL;
+
+	for (entry = 0; entry < reta_size; entry++) {
+		int grp = entry / RTE_RETA_GROUP_SIZE;
+		int grp_idx = entry % RTE_RETA_GROUP_SIZE;
+
+		if ((reta_conf[grp].mask >> grp_idx) & 1)
+			reta_conf[grp].reta[grp_idx] = rss->tbl[entry];
+	}
+
+	return 0;
+}
+
+static int
+sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
+			struct rte_eth_rss_reta_entry64 *reta_conf,
+			uint16_t reta_size)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
+	unsigned int *rss_tbl_new;
+	uint16_t entry;
+	int rc = 0;
+
+
+	if (sfc_sa2shared(sa)->isolated)
+		return -ENOTSUP;
+
+	if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
+		sfc_err(sa, "RSS is not available");
+		return -ENOTSUP;
+	}
+
+	if (rss->channels == 0) {
+		sfc_err(sa, "RSS is not configured");
+		return -EINVAL;
+	}
+
+	if (reta_size != EFX_RSS_TBL_SIZE) {
+		sfc_err(sa, "RETA size is wrong (should be %u)",
+			EFX_RSS_TBL_SIZE);
+		return -EINVAL;
+	}
+
+	rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(rss->tbl), 0);
+	if (rss_tbl_new == NULL)
+		return -ENOMEM;
+
+	sfc_adapter_lock(sa);
+
+	rte_memcpy(rss_tbl_new, rss->tbl, sizeof(rss->tbl));
+
+	for (entry = 0; entry < reta_size; entry++) {
+		int grp_idx = entry % RTE_RETA_GROUP_SIZE;
+		struct rte_eth_rss_reta_entry64 *grp;
+
+		grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
+
+		if (grp->mask & (1ull << grp_idx)) {
+			if (grp->reta[grp_idx] >= rss->channels) {
+				rc = EINVAL;
+				goto bad_reta_entry;
+			}
+			rss_tbl_new[entry] = grp->reta[grp_idx];
+		}
+	}
+
+	if (sa->state == SFC_ADAPTER_STARTED) {
+		rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
+					  rss_tbl_new, EFX_RSS_TBL_SIZE);
+		if (rc != 0)
+			goto fail_scale_tbl_set;
+	}
+
+	rte_memcpy(rss->tbl, rss_tbl_new, sizeof(rss->tbl));
+
+fail_scale_tbl_set:
+bad_reta_entry:
+	sfc_adapter_unlock(sa);
+
+	rte_free(rss_tbl_new);
+
+	SFC_ASSERT(rc >= 0);
+	return -rc;
+}
+
+static int
+sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
+		    enum rte_filter_op filter_op,
+		    void *arg)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	int rc = ENOTSUP;
+
+	sfc_log_init(sa, "entry");
+
+	switch (filter_type) {
+	case RTE_ETH_FILTER_NONE:
+		sfc_err(sa, "Global filters configuration not supported");
+		break;
+	case RTE_ETH_FILTER_MACVLAN:
+		sfc_err(sa, "MACVLAN filters not supported");
+		break;
+	case RTE_ETH_FILTER_ETHERTYPE:
+		sfc_err(sa, "EtherType filters not supported");
+		break;
+	case RTE_ETH_FILTER_FLEXIBLE:
+		sfc_err(sa, "Flexible filters not supported");
+		break;
+	case RTE_ETH_FILTER_SYN:
+		sfc_err(sa, "SYN filters not supported");
+		break;
+	case RTE_ETH_FILTER_NTUPLE:
+		sfc_err(sa, "NTUPLE filters not supported");
+		break;
+	case RTE_ETH_FILTER_TUNNEL:
+		sfc_err(sa, "Tunnel filters not supported");
+		break;
+	case RTE_ETH_FILTER_FDIR:
+		sfc_err(sa, "Flow Director filters not supported");
+		break;
+	case RTE_ETH_FILTER_HASH:
+		sfc_err(sa, "Hash filters not supported");
+		break;
+	case RTE_ETH_FILTER_GENERIC:
+		if (filter_op != RTE_ETH_FILTER_GET) {
+			rc = EINVAL;
+		} else {
+			*(const void **)arg = &sfc_flow_ops;
+			rc = 0;
+		}
+		break;
+	default:
+		sfc_err(sa, "Unknown filter type %u", filter_type);
+		break;
+	}
+
+	sfc_log_init(sa, "exit: %d", -rc);
+	SFC_ASSERT(rc >= 0);
+	return -rc;
+}
+
+static int
+sfc_pool_ops_supported(struct rte_eth_dev *dev, const char *pool)
+{
+	const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
+
+	/*
+	 * If Rx datapath does not provide callback to check mempool,
+	 * all pools are supported.
+	 */
+	if (sap->dp_rx->pool_ops_supported == NULL)
+		return 1;
+
+	return sap->dp_rx->pool_ops_supported(pool);
+}
+
+static const struct eth_dev_ops sfc_eth_dev_ops = {
+	.dev_configure			= sfc_dev_configure,
+	.dev_start			= sfc_dev_start,
+	.dev_stop			= sfc_dev_stop,
+	.dev_set_link_up		= sfc_dev_set_link_up,
+	.dev_set_link_down		= sfc_dev_set_link_down,
+	.dev_close			= sfc_dev_close,
+	.promiscuous_enable		= sfc_dev_promisc_enable,
+	.promiscuous_disable		= sfc_dev_promisc_disable,
+	.allmulticast_enable		= sfc_dev_allmulti_enable,
+	.allmulticast_disable		= sfc_dev_allmulti_disable,
+	.link_update			= sfc_dev_link_update,
+	.stats_get			= sfc_stats_get,
+	.stats_reset			= sfc_stats_reset,
+	.xstats_get			= sfc_xstats_get,
+	.xstats_reset			= sfc_stats_reset,
+	.xstats_get_names		= sfc_xstats_get_names,
+	.dev_infos_get			= sfc_dev_infos_get,
+	.dev_supported_ptypes_get	= sfc_dev_supported_ptypes_get,
+	.mtu_set			= sfc_dev_set_mtu,
+	.rx_queue_start			= sfc_rx_queue_start,
+	.rx_queue_stop			= sfc_rx_queue_stop,
+	.tx_queue_start			= sfc_tx_queue_start,
+	.tx_queue_stop			= sfc_tx_queue_stop,
+	.rx_queue_setup			= sfc_rx_queue_setup,
+	.rx_queue_release		= sfc_rx_queue_release,
+	.rx_queue_count			= sfc_rx_queue_count,
+	.rx_descriptor_done		= sfc_rx_descriptor_done,
+	.rx_descriptor_status		= sfc_rx_descriptor_status,
+	.tx_descriptor_status		= sfc_tx_descriptor_status,
+	.tx_queue_setup			= sfc_tx_queue_setup,
+	.tx_queue_release		= sfc_tx_queue_release,
+	.flow_ctrl_get			= sfc_flow_ctrl_get,
+	.flow_ctrl_set			= sfc_flow_ctrl_set,
+	.mac_addr_set			= sfc_mac_addr_set,
+	.udp_tunnel_port_add		= sfc_dev_udp_tunnel_port_add,
+	.udp_tunnel_port_del		= sfc_dev_udp_tunnel_port_del,
+	.reta_update			= sfc_dev_rss_reta_update,
+	.reta_query			= sfc_dev_rss_reta_query,
+	.rss_hash_update		= sfc_dev_rss_hash_update,
+	.rss_hash_conf_get		= sfc_dev_rss_hash_conf_get,
+	.filter_ctrl			= sfc_dev_filter_ctrl,
+	.set_mc_addr_list		= sfc_set_mc_addr_list,
+	.rxq_info_get			= sfc_rx_queue_info_get,
+	.txq_info_get			= sfc_tx_queue_info_get,
+	.fw_version_get			= sfc_fw_version_get,
+	.xstats_get_by_id		= sfc_xstats_get_by_id,
+	.xstats_get_names_by_id		= sfc_xstats_get_names_by_id,
+	.pool_ops_supported		= sfc_pool_ops_supported,
+};
+
+/**
+ * Duplicate a string in potentially shared memory required for
+ * multi-process support.
+ *
+ * strdup() allocates from process-local heap/memory.
+ */
+static char *
+sfc_strdup(const char *str)
+{
+	size_t size;
+	char *copy;
+
+	if (str == NULL)
+		return NULL;
+
+	size = strlen(str) + 1;
+	copy = rte_malloc(__func__, size, 0);
+	if (copy != NULL)
+		rte_memcpy(copy, str, size);
+
+	return copy;
+}
+
+static int
+sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	const struct sfc_dp_rx *dp_rx;
+	const struct sfc_dp_tx *dp_tx;
+	const efx_nic_cfg_t *encp;
+	unsigned int avail_caps = 0;
+	const char *rx_name = NULL;
+	const char *tx_name = NULL;
+	int rc;
+
+	switch (sa->family) {
+	case EFX_FAMILY_HUNTINGTON:
+	case EFX_FAMILY_MEDFORD:
+	case EFX_FAMILY_MEDFORD2:
+		avail_caps |= SFC_DP_HW_FW_CAP_EF10;
+		break;
+	default:
+		break;
+	}
+
+	encp = efx_nic_cfg_get(sa->nic);
+	if (encp->enc_rx_es_super_buffer_supported)
+		avail_caps |= SFC_DP_HW_FW_CAP_RX_ES_SUPER_BUFFER;
+
+	rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
+				sfc_kvarg_string_handler, &rx_name);
+	if (rc != 0)
+		goto fail_kvarg_rx_datapath;
+
+	if (rx_name != NULL) {
+		dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
+		if (dp_rx == NULL) {
+			sfc_err(sa, "Rx datapath %s not found", rx_name);
+			rc = ENOENT;
+			goto fail_dp_rx;
+		}
+		if (!sfc_dp_match_hw_fw_caps(&dp_rx->dp, avail_caps)) {
+			sfc_err(sa,
+				"Insufficient Hw/FW capabilities to use Rx datapath %s",
+				rx_name);
+			rc = EINVAL;
+			goto fail_dp_rx_caps;
+		}
+	} else {
+		dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
+		if (dp_rx == NULL) {
+			sfc_err(sa, "Rx datapath by caps %#x not found",
+				avail_caps);
+			rc = ENOENT;
+			goto fail_dp_rx;
+		}
+	}
+
+	sas->dp_rx_name = sfc_strdup(dp_rx->dp.name);
+	if (sas->dp_rx_name == NULL) {
+		rc = ENOMEM;
+		goto fail_dp_rx_name;
+	}
+
+	sfc_notice(sa, "use %s Rx datapath", sas->dp_rx_name);
+
+	rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
+				sfc_kvarg_string_handler, &tx_name);
+	if (rc != 0)
+		goto fail_kvarg_tx_datapath;
+
+	if (tx_name != NULL) {
+		dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
+		if (dp_tx == NULL) {
+			sfc_err(sa, "Tx datapath %s not found", tx_name);
+			rc = ENOENT;
+			goto fail_dp_tx;
+		}
+		if (!sfc_dp_match_hw_fw_caps(&dp_tx->dp, avail_caps)) {
+			sfc_err(sa,
+				"Insufficient Hw/FW capabilities to use Tx datapath %s",
+				tx_name);
+			rc = EINVAL;
+			goto fail_dp_tx_caps;
+		}
+	} else {
+		dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
+		if (dp_tx == NULL) {
+			sfc_err(sa, "Tx datapath by caps %#x not found",
+				avail_caps);
+			rc = ENOENT;
+			goto fail_dp_tx;
+		}
+	}
+
+	sas->dp_tx_name = sfc_strdup(dp_tx->dp.name);
+	if (sas->dp_tx_name == NULL) {
+		rc = ENOMEM;
+		goto fail_dp_tx_name;
+	}
+
+	sfc_notice(sa, "use %s Tx datapath", sas->dp_tx_name);
+
+	sa->priv.dp_rx = dp_rx;
+	sa->priv.dp_tx = dp_tx;
+
+	dev->rx_pkt_burst = dp_rx->pkt_burst;
+	dev->tx_pkt_prepare = dp_tx->pkt_prepare;
+	dev->tx_pkt_burst = dp_tx->pkt_burst;
+
+	dev->dev_ops = &sfc_eth_dev_ops;
+
+	return 0;
+
+fail_dp_tx_name:
+fail_dp_tx_caps:
+fail_dp_tx:
+fail_kvarg_tx_datapath:
+	rte_free(sas->dp_rx_name);
+	sas->dp_rx_name = NULL;
+
+fail_dp_rx_name:
+fail_dp_rx_caps:
+fail_dp_rx:
+fail_kvarg_rx_datapath:
+	return rc;
+}
+
+static void
+sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
+{
+	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+
+	dev->dev_ops = NULL;
+	dev->tx_pkt_prepare = NULL;
+	dev->rx_pkt_burst = NULL;
+	dev->tx_pkt_burst = NULL;
+
+	rte_free(sas->dp_tx_name);
+	sas->dp_tx_name = NULL;
+	sa->priv.dp_tx = NULL;
+
+	rte_free(sas->dp_rx_name);
+	sas->dp_rx_name = NULL;
+	sa->priv.dp_rx = NULL;
+}
+
+static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
+	.dev_supported_ptypes_get	= sfc_dev_supported_ptypes_get,
+	.rx_queue_count			= sfc_rx_queue_count,
+	.rx_descriptor_done		= sfc_rx_descriptor_done,
+	.rx_descriptor_status		= sfc_rx_descriptor_status,
+	.tx_descriptor_status		= sfc_tx_descriptor_status,
+	.reta_query			= sfc_dev_rss_reta_query,
+	.rss_hash_conf_get		= sfc_dev_rss_hash_conf_get,
+	.rxq_info_get			= sfc_rx_queue_info_get,
+	.txq_info_get			= sfc_tx_queue_info_get,
+};
+
+static int
+sfc_eth_dev_secondary_init(struct rte_eth_dev *dev, uint32_t logtype_main)
+{
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct sfc_adapter_priv *sap;
+	const struct sfc_dp_rx *dp_rx;
+	const struct sfc_dp_tx *dp_tx;
+	int rc;
+
+	/*
+	 * Allocate process private data from heap, since it should not
+	 * be located in shared memory allocated using rte_malloc() API.
+	 */
+	sap = calloc(1, sizeof(*sap));
+	if (sap == NULL) {
+		rc = ENOMEM;
+		goto fail_alloc_priv;
+	}
+
+	sap->logtype_main = logtype_main;
+
+	dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sas->dp_rx_name);
+	if (dp_rx == NULL) {
+		SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
+			"cannot find %s Rx datapath", sas->dp_rx_name);
+		rc = ENOENT;
+		goto fail_dp_rx;
+	}
+	if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
+		SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
+			"%s Rx datapath does not support multi-process",
+			sas->dp_rx_name);
+		rc = EINVAL;
+		goto fail_dp_rx_multi_process;
+	}
+
+	dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sas->dp_tx_name);
+	if (dp_tx == NULL) {
+		SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
+			"cannot find %s Tx datapath", sas->dp_tx_name);
+		rc = ENOENT;
+		goto fail_dp_tx;
+	}
+	if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
+		SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
+			"%s Tx datapath does not support multi-process",
+			sas->dp_tx_name);
+		rc = EINVAL;
+		goto fail_dp_tx_multi_process;
+	}
+
+	sap->dp_rx = dp_rx;
+	sap->dp_tx = dp_tx;
+
+	dev->process_private = sap;
+	dev->rx_pkt_burst = dp_rx->pkt_burst;
+	dev->tx_pkt_prepare = dp_tx->pkt_prepare;
+	dev->tx_pkt_burst = dp_tx->pkt_burst;
+	dev->dev_ops = &sfc_eth_dev_secondary_ops;
+
+	return 0;
+
+fail_dp_tx_multi_process:
+fail_dp_tx:
+fail_dp_rx_multi_process:
+fail_dp_rx:
+	free(sap);
+
+fail_alloc_priv:
+	return rc;
+}
+
+static void
+sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
+{
+	free(dev->process_private);
+	dev->process_private = NULL;
+	dev->dev_ops = NULL;
+	dev->tx_pkt_prepare = NULL;
+	dev->tx_pkt_burst = NULL;
+	dev->rx_pkt_burst = NULL;
+}
+
+static void
+sfc_register_dp(void)
+{
+	/* Register once */
+	if (TAILQ_EMPTY(&sfc_dp_head)) {
+		/* Prefer EF10 datapath */
+		sfc_dp_register(&sfc_dp_head, &sfc_ef10_essb_rx.dp);
+		sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
+		sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
+
+		sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
+		sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
+		sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
+	}
+}
+
+static int
+sfc_eth_dev_init(struct rte_eth_dev *dev)
+{
+	struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
+	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+	uint32_t logtype_main;
+	struct sfc_adapter *sa;
+	int rc;
+	const efx_nic_cfg_t *encp;
+	const struct ether_addr *from;
+
+	sfc_register_dp();
+
+	logtype_main = sfc_register_logtype(&pci_dev->addr,
+					    SFC_LOGTYPE_MAIN_STR,
+					    RTE_LOG_NOTICE);
+
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return -sfc_eth_dev_secondary_init(dev, logtype_main);
+
+	/* Required for logging */
+	sas->pci_addr = pci_dev->addr;
+	sas->port_id = dev->data->port_id;
+
+	/*
+	 * Allocate process private data from heap, since it should not
+	 * be located in shared memory allocated using rte_malloc() API.
+	 */
+	sa = calloc(1, sizeof(*sa));
+	if (sa == NULL) {
+		rc = ENOMEM;
+		goto fail_alloc_sa;
+	}
+
+	dev->process_private = sa;
+
+	/* Required for logging */
+	sa->priv.shared = sas;
+	sa->priv.logtype_main = logtype_main;
+
+	sa->eth_dev = dev;
+
+	/* Copy PCI device info to the dev->data */
+	rte_eth_copy_pci_info(dev, pci_dev);
+
+	rc = sfc_kvargs_parse(sa);
+	if (rc != 0)
+		goto fail_kvargs_parse;
+
+	sfc_log_init(sa, "entry");
+
+	dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
+	if (dev->data->mac_addrs == NULL) {
+		rc = ENOMEM;
+		goto fail_mac_addrs;
+	}
+
+	sfc_adapter_lock_init(sa);
+	sfc_adapter_lock(sa);
+
+	sfc_log_init(sa, "probing");
+	rc = sfc_probe(sa);
+	if (rc != 0)
+		goto fail_probe;
+
+	sfc_log_init(sa, "set device ops");
+	rc = sfc_eth_dev_set_ops(dev);
+	if (rc != 0)
+		goto fail_set_ops;
+
+	sfc_log_init(sa, "attaching");
+	rc = sfc_attach(sa);
+	if (rc != 0)
+		goto fail_attach;
+
+	encp = efx_nic_cfg_get(sa->nic);
+
+	/*
+	 * The arguments are really reverse order in comparison to
+	 * Linux kernel. Copy from NIC config to Ethernet device data.
+	 */
+	from = (const struct ether_addr *)(encp->enc_mac_addr);
+	ether_addr_copy(from, &dev->data->mac_addrs[0]);
+
+	sfc_adapter_unlock(sa);
+
+	sfc_log_init(sa, "done");
+	return 0;
+
+fail_attach:
+	sfc_eth_dev_clear_ops(dev);
+
+fail_set_ops:
+	sfc_unprobe(sa);
+
+fail_probe:
+	sfc_adapter_unlock(sa);
+	sfc_adapter_lock_fini(sa);
+	rte_free(dev->data->mac_addrs);
+	dev->data->mac_addrs = NULL;
+
+fail_mac_addrs:
+	sfc_kvargs_cleanup(sa);
+
+fail_kvargs_parse:
+	sfc_log_init(sa, "failed %d", rc);
+	dev->process_private = NULL;
+	free(sa);
+
+fail_alloc_sa:
+	SFC_ASSERT(rc > 0);
+	return -rc;
+}
+
+static int
+sfc_eth_dev_uninit(struct rte_eth_dev *dev)
+{
+	struct sfc_adapter *sa;
+
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+		sfc_eth_dev_secondary_clear_ops(dev);
+		return 0;
+	}
+
+	sa = sfc_adapter_by_eth_dev(dev);
+	sfc_log_init(sa, "entry");
+
+	sfc_adapter_lock(sa);
+
+	sfc_eth_dev_clear_ops(dev);
+
+	sfc_detach(sa);
+	sfc_unprobe(sa);
+
+	sfc_kvargs_cleanup(sa);
+
+	sfc_adapter_unlock(sa);
+	sfc_adapter_lock_fini(sa);
+
+	sfc_log_init(sa, "done");
+
+	/* Required for logging, so cleanup last */
+	sa->eth_dev = NULL;
+
+	dev->process_private = NULL;
+	free(sa);
+
+	return 0;
+}
+
+static const struct rte_pci_id pci_id_sfc_efx_map[] = {
+	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
+	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
+	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
+	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
+	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
+	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
+	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2) },
+	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2_VF) },
+	{ .vendor_id = 0 /* sentinel */ }
+};
+
+static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
+	struct rte_pci_device *pci_dev)
+{
+	return rte_eth_dev_pci_generic_probe(pci_dev,
+		sizeof(struct sfc_adapter_shared), sfc_eth_dev_init);
+}
+
+static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
+{
+	return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
+}
+
+static struct rte_pci_driver sfc_efx_pmd = {
+	.id_table = pci_id_sfc_efx_map,
+	.drv_flags =
+		RTE_PCI_DRV_INTR_LSC |
+		RTE_PCI_DRV_NEED_MAPPING,
+	.probe = sfc_eth_dev_pci_probe,
+	.remove = sfc_eth_dev_pci_remove,
+};
+
+RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
+RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
+RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
+RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
+	SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
+	SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
+	SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
+	SFC_KVARG_FW_VARIANT "=" SFC_KVARG_VALUES_FW_VARIANT " "
+	SFC_KVARG_RXD_WAIT_TIMEOUT_NS "=<long> "
+	SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long>");
+
+RTE_INIT(sfc_driver_register_logtype)
+{
+	int ret;
+
+	ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
+						   RTE_LOG_NOTICE);
+	sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
+}