diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index bfcff70..bd66a7c 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -771,37 +771,8 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 			err = ENOMEM;
 			goto port_error;
 		}
-
-		/* Secondary processes have to use local storage for their
-		 * private data as well as a copy of eth_dev->data, but this
-		 * pointer must not be modified before burst functions are
-		 * actually called. */
-		if (mlx5_is_secondary()) {
-			struct mlx5_secondary_data *sd =
-				&mlx5_secondary_data[eth_dev->data->port_id];
-			sd->primary_priv = eth_dev->data->dev_private;
-			if (sd->primary_priv == NULL) {
-				ERROR("no private data for port %u",
-						eth_dev->data->port_id);
-				err = EINVAL;
-				goto port_error;
-			}
-			sd->shared_dev_data = eth_dev->data;
-			rte_spinlock_init(&sd->lock);
-			memcpy(sd->data.name, sd->shared_dev_data->name,
-				   sizeof(sd->data.name));
-			sd->data.dev_private = priv;
-			sd->data.rx_mbuf_alloc_failed = 0;
-			sd->data.mtu = ETHER_MTU;
-			sd->data.port_id = sd->shared_dev_data->port_id;
-			sd->data.mac_addrs = priv->mac;
-			eth_dev->tx_pkt_burst = mlx5_tx_burst_secondary_setup;
-			eth_dev->rx_pkt_burst = mlx5_rx_burst_secondary_setup;
-		} else {
-			eth_dev->data->dev_private = priv;
-			eth_dev->data->mac_addrs = priv->mac;
-		}
-
+		eth_dev->data->dev_private = priv;
+		eth_dev->data->mac_addrs = priv->mac;
 		eth_dev->device = &pci_dev->device;
 		rte_eth_copy_pci_info(eth_dev, pci_dev);
 		eth_dev->data->dev_flags |= RTE_ETH_DEV_DETACHABLE;
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 31d0c49..2392be5 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -158,14 +158,6 @@ struct priv {
 	rte_spinlock_t lock; /* Lock for control functions. */
 };
 
-/* Local storage for secondary process data. */
-struct mlx5_secondary_data {
-	struct rte_eth_dev_data data; /* Local device data. */
-	struct priv *primary_priv; /* Private structure from primary. */
-	struct rte_eth_dev_data *shared_dev_data; /* Shared device data. */
-	rte_spinlock_t lock; /* Port configuration lock. */
-} mlx5_secondary_data[RTE_MAX_ETHPORTS];
-
 /**
  * Lock private structure to protect it from concurrent access in the
  * control path.
@@ -221,7 +213,6 @@ void priv_dev_interrupt_handler_uninstall(struct priv *, struct rte_eth_dev *);
 void priv_dev_interrupt_handler_install(struct priv *, struct rte_eth_dev *);
 int mlx5_set_link_down(struct rte_eth_dev *dev);
 int mlx5_set_link_up(struct rte_eth_dev *dev);
-struct priv *mlx5_secondary_data_setup(struct priv *priv);
 void priv_select_tx_function(struct priv *);
 void priv_select_rx_function(struct priv *);
 
diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index 36872b5..0e0a99e 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -126,12 +126,7 @@ struct ethtool_link_settings {
 struct priv *
 mlx5_get_priv(struct rte_eth_dev *dev)
 {
-	struct mlx5_secondary_data *sd;
-
-	if (!mlx5_is_secondary())
-		return dev->data->dev_private;
-	sd = &mlx5_secondary_data[dev->data->port_id];
-	return sd->data.dev_private;
+	return dev->data->dev_private;
 }
 
 /**
@@ -143,7 +138,7 @@ mlx5_get_priv(struct rte_eth_dev *dev)
 inline int
 mlx5_is_secondary(void)
 {
-	return rte_eal_process_type() != RTE_PROC_PRIMARY;
+	return rte_eal_process_type() == RTE_PROC_SECONDARY;
 }
 
 /**
@@ -1336,163 +1331,6 @@ mlx5_set_link_up(struct rte_eth_dev *dev)
 }
 
 /**
- * Configure secondary process queues from a private data pointer (primary
- * or secondary) and update burst callbacks. Can take place only once.
- *
- * All queues must have been previously created by the primary process to
- * avoid undefined behavior.
- *
- * @param priv
- *   Private data pointer from either primary or secondary process.
- *
- * @return
- *   Private data pointer from secondary process, NULL in case of error.
- */
-struct priv *
-mlx5_secondary_data_setup(struct priv *priv)
-{
-	unsigned int port_id = 0;
-	struct mlx5_secondary_data *sd;
-	void **tx_queues;
-	void **rx_queues;
-	unsigned int nb_tx_queues;
-	unsigned int nb_rx_queues;
-	unsigned int i;
-
-	/* priv must be valid at this point. */
-	assert(priv != NULL);
-	/* priv->dev must also be valid but may point to local memory from
-	 * another process, possibly with the same address and must not
-	 * be dereferenced yet. */
-	assert(priv->dev != NULL);
-	/* Determine port ID by finding out where priv comes from. */
-	while (1) {
-		sd = &mlx5_secondary_data[port_id];
-		rte_spinlock_lock(&sd->lock);
-		/* Primary process? */
-		if (sd->primary_priv == priv)
-			break;
-		/* Secondary process? */
-		if (sd->data.dev_private == priv)
-			break;
-		rte_spinlock_unlock(&sd->lock);
-		if (++port_id == RTE_DIM(mlx5_secondary_data))
-			port_id = 0;
-	}
-	/* Switch to secondary private structure. If private data has already
-	 * been updated by another thread, there is nothing else to do. */
-	priv = sd->data.dev_private;
-	if (priv->dev->data == &sd->data)
-		goto end;
-	/* Sanity checks. Secondary private structure is supposed to point
-	 * to local eth_dev, itself still pointing to the shared device data
-	 * structure allocated by the primary process. */
-	assert(sd->shared_dev_data != &sd->data);
-	assert(sd->data.nb_tx_queues == 0);
-	assert(sd->data.tx_queues == NULL);
-	assert(sd->data.nb_rx_queues == 0);
-	assert(sd->data.rx_queues == NULL);
-	assert(priv != sd->primary_priv);
-	assert(priv->dev->data == sd->shared_dev_data);
-	assert(priv->txqs_n == 0);
-	assert(priv->txqs == NULL);
-	assert(priv->rxqs_n == 0);
-	assert(priv->rxqs == NULL);
-	nb_tx_queues = sd->shared_dev_data->nb_tx_queues;
-	nb_rx_queues = sd->shared_dev_data->nb_rx_queues;
-	/* Allocate local storage for queues. */
-	tx_queues = rte_zmalloc("secondary ethdev->tx_queues",
-				sizeof(sd->data.tx_queues[0]) * nb_tx_queues,
-				RTE_CACHE_LINE_SIZE);
-	rx_queues = rte_zmalloc("secondary ethdev->rx_queues",
-				sizeof(sd->data.rx_queues[0]) * nb_rx_queues,
-				RTE_CACHE_LINE_SIZE);
-	if (tx_queues == NULL || rx_queues == NULL)
-		goto error;
-	/* Lock to prevent control operations during setup. */
-	priv_lock(priv);
-	/* TX queues. */
-	for (i = 0; i != nb_tx_queues; ++i) {
-		struct txq *primary_txq = (*sd->primary_priv->txqs)[i];
-		struct txq_ctrl *primary_txq_ctrl;
-		struct txq_ctrl *txq_ctrl;
-
-		if (primary_txq == NULL)
-			continue;
-		primary_txq_ctrl = container_of(primary_txq,
-						struct txq_ctrl, txq);
-		txq_ctrl = rte_calloc_socket("TXQ", 1, sizeof(*txq_ctrl) +
-					     (1 << primary_txq->elts_n) *
-					     sizeof(struct rte_mbuf *), 0,
-					     primary_txq_ctrl->socket);
-		if (txq_ctrl != NULL) {
-			if (txq_ctrl_setup(priv->dev,
-					   txq_ctrl,
-					   1 << primary_txq->elts_n,
-					   primary_txq_ctrl->socket,
-					   NULL) == 0) {
-				txq_ctrl->txq.stats.idx =
-					primary_txq->stats.idx;
-				tx_queues[i] = &txq_ctrl->txq;
-				continue;
-			}
-			rte_free(txq_ctrl);
-		}
-		while (i) {
-			txq_ctrl = tx_queues[--i];
-			txq_cleanup(txq_ctrl);
-			rte_free(txq_ctrl);
-		}
-		goto error;
-	}
-	/* RX queues. */
-	for (i = 0; i != nb_rx_queues; ++i) {
-		struct rxq_ctrl *primary_rxq =
-			container_of((*sd->primary_priv->rxqs)[i],
-				     struct rxq_ctrl, rxq);
-
-		if (primary_rxq == NULL)
-			continue;
-		/* Not supported yet. */
-		rx_queues[i] = NULL;
-	}
-	/* Update everything. */
-	priv->txqs = (void *)tx_queues;
-	priv->txqs_n = nb_tx_queues;
-	priv->rxqs = (void *)rx_queues;
-	priv->rxqs_n = nb_rx_queues;
-	sd->data.rx_queues = rx_queues;
-	sd->data.tx_queues = tx_queues;
-	sd->data.nb_rx_queues = nb_rx_queues;
-	sd->data.nb_tx_queues = nb_tx_queues;
-	sd->data.dev_link = sd->shared_dev_data->dev_link;
-	sd->data.mtu = sd->shared_dev_data->mtu;
-	memcpy(sd->data.rx_queue_state, sd->shared_dev_data->rx_queue_state,
-	       sizeof(sd->data.rx_queue_state));
-	memcpy(sd->data.tx_queue_state, sd->shared_dev_data->tx_queue_state,
-	       sizeof(sd->data.tx_queue_state));
-	sd->data.dev_flags = sd->shared_dev_data->dev_flags;
-	/* Use local data from now on. */
-	rte_mb();
-	priv->dev->data = &sd->data;
-	rte_mb();
-	priv_select_tx_function(priv);
-	priv_select_rx_function(priv);
-	priv_unlock(priv);
-end:
-	/* More sanity checks. */
-	assert(priv->dev->data == &sd->data);
-	rte_spinlock_unlock(&sd->lock);
-	return priv;
-error:
-	priv_unlock(priv);
-	rte_free(tx_queues);
-	rte_free(rx_queues);
-	rte_spinlock_unlock(&sd->lock);
-	return NULL;
-}
-
-/**
  * Configure the TX function to use.
  *
  * @param priv
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index 2ea7a35..b52de98 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -1223,47 +1223,6 @@ mlx5_rx_queue_release(void *dpdk_rxq)
 }
 
 /**
- * DPDK callback for RX in secondary processes.
- *
- * This function configures all queues from primary process information
- * if necessary before reverting to the normal RX burst callback.
- *
- * @param dpdk_rxq
- *   Generic pointer to RX queue structure.
- * @param[out] pkts
- *   Array to store received packets.
- * @param pkts_n
- *   Maximum number of packets in array.
- *
- * @return
- *   Number of packets successfully received (<= pkts_n).
- */
-uint16_t
-mlx5_rx_burst_secondary_setup(void *dpdk_rxq, struct rte_mbuf **pkts,
-			      uint16_t pkts_n)
-{
-	struct rxq *rxq = dpdk_rxq;
-	struct rxq_ctrl *rxq_ctrl = container_of(rxq, struct rxq_ctrl, rxq);
-	struct priv *priv = mlx5_secondary_data_setup(rxq_ctrl->priv);
-	struct priv *primary_priv;
-	unsigned int index;
-
-	if (priv == NULL)
-		return 0;
-	primary_priv =
-		mlx5_secondary_data[priv->dev->data->port_id].primary_priv;
-	/* Look for queue index in both private structures. */
-	for (index = 0; index != priv->rxqs_n; ++index)
-		if (((*primary_priv->rxqs)[index] == rxq) ||
-		    ((*priv->rxqs)[index] == rxq))
-			break;
-	if (index == priv->rxqs_n)
-		return 0;
-	rxq = (*priv->rxqs)[index];
-	return priv->dev->rx_pkt_burst(rxq, pkts, pkts_n);
-}
-
-/**
  * Allocate queue vector and fill epoll fd list for Rx interrupts.
  *
  * @param priv
diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
index baf2b25..333e5af 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -305,7 +305,6 @@ int rxq_ctrl_setup(struct rte_eth_dev *, struct rxq_ctrl *, uint16_t,
 int mlx5_rx_queue_setup(struct rte_eth_dev *, uint16_t, uint16_t, unsigned int,
 			const struct rte_eth_rxconf *, struct rte_mempool *);
 void mlx5_rx_queue_release(void *);
-uint16_t mlx5_rx_burst_secondary_setup(void *, struct rte_mbuf **, uint16_t);
 int priv_rx_intr_vec_enable(struct priv *priv);
 void priv_rx_intr_vec_disable(struct priv *priv);
 #ifdef HAVE_UPDATE_CQ_CI
@@ -321,7 +320,6 @@ int txq_ctrl_setup(struct rte_eth_dev *, struct txq_ctrl *, uint16_t,
 int mlx5_tx_queue_setup(struct rte_eth_dev *, uint16_t, uint16_t, unsigned int,
 			const struct rte_eth_txconf *);
 void mlx5_tx_queue_release(void *);
-uint16_t mlx5_tx_burst_secondary_setup(void *, struct rte_mbuf **, uint16_t);
 
 /* mlx5_rxtx.c */
 
diff --git a/drivers/net/mlx5/mlx5_txq.c b/drivers/net/mlx5/mlx5_txq.c
index 45e9037..4b0b532 100644
--- a/drivers/net/mlx5/mlx5_txq.c
+++ b/drivers/net/mlx5/mlx5_txq.c
@@ -526,44 +526,3 @@ mlx5_tx_queue_release(void *dpdk_txq)
 	rte_free(txq_ctrl);
 	priv_unlock(priv);
 }
-
-/**
- * DPDK callback for TX in secondary processes.
- *
- * This function configures all queues from primary process information
- * if necessary before reverting to the normal TX burst callback.
- *
- * @param dpdk_txq
- *   Generic pointer to TX queue structure.
- * @param[in] pkts
- *   Packets to transmit.
- * @param pkts_n
- *   Number of packets in array.
- *
- * @return
- *   Number of packets successfully transmitted (<= pkts_n).
- */
-uint16_t
-mlx5_tx_burst_secondary_setup(void *dpdk_txq, struct rte_mbuf **pkts,
-			      uint16_t pkts_n)
-{
-	struct txq *txq = dpdk_txq;
-	struct txq_ctrl *txq_ctrl = container_of(txq, struct txq_ctrl, txq);
-	struct priv *priv = mlx5_secondary_data_setup(txq_ctrl->priv);
-	struct priv *primary_priv;
-	unsigned int index;
-
-	if (priv == NULL)
-		return 0;
-	primary_priv =
-		mlx5_secondary_data[priv->dev->data->port_id].primary_priv;
-	/* Look for queue index in both private structures. */
-	for (index = 0; index != priv->txqs_n; ++index)
-		if (((*primary_priv->txqs)[index] == txq) ||
-		    ((*priv->txqs)[index] == txq))
-			break;
-	if (index == priv->txqs_n)
-		return 0;
-	txq = (*priv->txqs)[index];
-	return priv->dev->tx_pkt_burst(txq, pkts, pkts_n);
-}
