[PATCH v3 11/22] net/atlantic: link status and interrupt management

[Igor Russkikh <igor.russkikh@aquantia.com>]

From: Pavel Belous <Pavel.Belous@aquantia.com>

Implement link interrupt, link info, link polling.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: Pavel Belous <Pavel.Belous@aquantia.com>
---
 drivers/net/atlantic/atl_ethdev.c | 461 +++++++++++++++++++++++++++++++++++++-
 drivers/net/atlantic/atl_ethdev.h |  16 ++
 drivers/net/atlantic/atl_rxtx.c   |  36 +++
 drivers/net/atlantic/atl_types.h  |   2 +
 4 files changed, 514 insertions(+), 1 deletion(-)

diff --git a/drivers/net/atlantic/atl_ethdev.c b/drivers/net/atlantic/atl_ethdev.c
index 6a00277c3c8e..75c9fa169925 100644
--- a/drivers/net/atlantic/atl_ethdev.c
+++ b/drivers/net/atlantic/atl_ethdev.c
@@ -18,8 +18,11 @@ static int eth_atl_dev_uninit(struct rte_eth_dev *eth_dev);
 static int  atl_dev_configure(struct rte_eth_dev *dev);
 static int  atl_dev_start(struct rte_eth_dev *dev);
 static void atl_dev_stop(struct rte_eth_dev *dev);
+static int  atl_dev_set_link_up(struct rte_eth_dev *dev);
+static int  atl_dev_set_link_down(struct rte_eth_dev *dev);
 static void atl_dev_close(struct rte_eth_dev *dev);
 static int  atl_dev_reset(struct rte_eth_dev *dev);
+static int  atl_dev_link_update(struct rte_eth_dev *dev, int wait);
 
 static int atl_fw_version_get(struct rte_eth_dev *dev, char *fw_version,
 			      size_t fw_size);
@@ -29,6 +32,16 @@ static void atl_dev_info_get(struct rte_eth_dev *dev,
 
 static const uint32_t *atl_dev_supported_ptypes_get(struct rte_eth_dev *dev);
 
+static void atl_dev_link_status_print(struct rte_eth_dev *dev);
+
+/* Interrupts */
+static int atl_dev_rxq_interrupt_setup(struct rte_eth_dev *dev);
+static int atl_dev_lsc_interrupt_setup(struct rte_eth_dev *dev, uint8_t on);
+static int atl_dev_interrupt_get_status(struct rte_eth_dev *dev);
+static int atl_dev_interrupt_action(struct rte_eth_dev *dev,
+				    struct rte_intr_handle *handle);
+static void atl_dev_interrupt_handler(void *param);
+
 static int eth_atl_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 	struct rte_pci_device *pci_dev);
 static int eth_atl_pci_remove(struct rte_pci_device *pci_dev);
@@ -104,9 +117,14 @@ static const struct eth_dev_ops atl_eth_dev_ops = {
 	.dev_configure	      = atl_dev_configure,
 	.dev_start	      = atl_dev_start,
 	.dev_stop	      = atl_dev_stop,
+	.dev_set_link_up      = atl_dev_set_link_up,
+	.dev_set_link_down    = atl_dev_set_link_down,
 	.dev_close	      = atl_dev_close,
 	.dev_reset	      = atl_dev_reset,
 
+	/* Link */
+	.link_update	      = atl_dev_link_update,
+
 	.fw_version_get       = atl_fw_version_get,
 	.dev_infos_get	      = atl_dev_info_get,
 	.dev_supported_ptypes_get = atl_dev_supported_ptypes_get,
@@ -121,14 +139,85 @@ static const struct eth_dev_ops atl_eth_dev_ops = {
 	.tx_queue_stop	      = atl_tx_queue_stop,
 	.tx_queue_setup       = atl_tx_queue_setup,
 	.tx_queue_release     = atl_tx_queue_release,
+
+	.rx_queue_intr_enable = atl_dev_rx_queue_intr_enable,
+	.rx_queue_intr_disable = atl_dev_rx_queue_intr_disable,
 };
 
+
+/**
+ * Atomically reads the link status information from global
+ * structure rte_eth_dev.
+ *
+ * @param dev
+ *   - Pointer to the structure rte_eth_dev to read from.
+ *   - Pointer to the buffer to be saved with the link status.
+ *
+ * @return
+ *   - On success, zero.
+ *   - On failure, negative value.
+ */
+static inline int
+rte_atl_dev_atomic_read_link_status(struct rte_eth_dev *dev,
+				struct rte_eth_link *link)
+{
+	struct rte_eth_link *dst = link;
+	struct rte_eth_link *src = &dev->data->dev_link;
+
+	if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
+					*(uint64_t *)src) == 0)
+		return -1;
+
+	return 0;
+}
+
+/**
+ * Atomically writes the link status information into global
+ * structure rte_eth_dev.
+ *
+ * @param dev
+ *   - Pointer to the structure rte_eth_dev to read from.
+ *   - Pointer to the buffer to be saved with the link status.
+ *
+ * @return
+ *   - On success, zero.
+ *   - On failure, negative value.
+ */
+static inline int
+rte_atl_dev_atomic_write_link_status(struct rte_eth_dev *dev,
+				struct rte_eth_link *link)
+{
+	struct rte_eth_link *dst = &dev->data->dev_link;
+	struct rte_eth_link *src = link;
+
+	if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
+					*(uint64_t *)src) == 0)
+		return -1;
+
+	return 0;
+}
+
 static inline int32_t
 atl_reset_hw(struct aq_hw_s *hw)
 {
 	return hw_atl_b0_hw_reset(hw);
 }
 
+static inline void
+atl_enable_intr(struct rte_eth_dev *dev)
+{
+	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+	hw_atl_itr_irq_msk_setlsw_set(hw, 0xffffffff);
+}
+
+static void
+atl_disable_intr(struct aq_hw_s *hw)
+{
+	PMD_INIT_FUNC_TRACE();
+	hw_atl_itr_irq_msk_clearlsw_set(hw, 0xffffffff);
+}
+
 static void
 atl_print_adapter_info(struct aq_hw_s *hw __rte_unused)
 {
@@ -145,6 +234,7 @@ eth_atl_dev_init(struct rte_eth_dev *eth_dev)
 	struct atl_adapter *adapter =
 		(struct atl_adapter *)eth_dev->data->dev_private;
 	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
+	struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
 	int err = 0;
 
@@ -169,9 +259,17 @@ eth_atl_dev_init(struct rte_eth_dev *eth_dev)
 	/* Hardware configuration - hardcode */
 	adapter->hw_cfg.is_lro = false;
 	adapter->hw_cfg.wol = false;
+	adapter->hw_cfg.link_speed_msk = AQ_NIC_RATE_10G |
+			  AQ_NIC_RATE_5G |
+			  AQ_NIC_RATE_2G5 |
+			  AQ_NIC_RATE_1G |
+			  AQ_NIC_RATE_100M;
 
 	hw->aq_nic_cfg = &adapter->hw_cfg;
 
+	/* disable interrupt */
+	atl_disable_intr(hw);
+
 	/* Allocate memory for storing MAC addresses */
 	eth_dev->data->mac_addrs = rte_zmalloc("atlantic", ETHER_ADDR_LEN, 0);
 	if (eth_dev->data->mac_addrs == NULL) {
@@ -188,12 +286,23 @@ eth_atl_dev_init(struct rte_eth_dev *eth_dev)
 			(u8 *)&eth_dev->data->mac_addrs[0]) != 0)
 		return -EINVAL;
 
+	rte_intr_callback_register(intr_handle,
+				   atl_dev_interrupt_handler, eth_dev);
+
+	/* enable uio/vfio intr/eventfd mapping */
+	rte_intr_enable(intr_handle);
+
+	/* enable support intr */
+	atl_enable_intr(eth_dev);
+
 	return err;
 }
 
 static int
 eth_atl_dev_uninit(struct rte_eth_dev *eth_dev)
 {
+	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
+	struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 	struct aq_hw_s *hw;
 
 	PMD_INIT_FUNC_TRACE();
@@ -210,6 +319,11 @@ eth_atl_dev_uninit(struct rte_eth_dev *eth_dev)
 	eth_dev->rx_pkt_burst = NULL;
 	eth_dev->tx_pkt_burst = NULL;
 
+	/* disable uio intr before callback unregister */
+	rte_intr_disable(intr_handle);
+	rte_intr_callback_unregister(intr_handle,
+				     atl_dev_interrupt_handler, eth_dev);
+
 	rte_free(eth_dev->data->mac_addrs);
 	eth_dev->data->mac_addrs = NULL;
 
@@ -238,8 +352,16 @@ eth_atl_pci_remove(struct rte_pci_device *pci_dev)
 }
 
 static int
-atl_dev_configure(struct rte_eth_dev *dev __rte_unused)
+atl_dev_configure(struct rte_eth_dev *dev)
 {
+	struct atl_interrupt *intr =
+		ATL_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
+
+	PMD_INIT_FUNC_TRACE();
+
+	/* set flag to update link status after init */
+	intr->flags |= ATL_FLAG_NEED_LINK_UPDATE;
+
 	return 0;
 }
 
@@ -251,11 +373,26 @@ static int
 atl_dev_start(struct rte_eth_dev *dev)
 {
 	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+	struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
+	uint32_t intr_vector = 0;
+	uint32_t *link_speeds;
+	uint32_t speed = 0;
 	int status;
 	int err;
 
 	PMD_INIT_FUNC_TRACE();
 
+	if (dev->data->dev_conf.link_speeds & ETH_LINK_SPEED_FIXED) {
+		PMD_INIT_LOG(ERR,
+		"Invalid link_speeds for port %u, fix speed not supported",
+				dev->data->port_id);
+		return -EINVAL;
+	}
+
+	/* disable uio/vfio intr/eventfd mapping */
+	rte_intr_disable(intr_handle);
+
 	/* stop adapter */
 	hw->adapter_stopped = 0;
 
@@ -269,6 +406,32 @@ atl_dev_start(struct rte_eth_dev *dev)
 	err = hw_atl_b0_hw_init(hw, (uint8_t *)dev->data->mac_addrs);
 
 	hw_atl_b0_hw_start(hw);
+	/* check and configure queue intr-vector mapping */
+	if ((rte_intr_cap_multiple(intr_handle) ||
+	    !RTE_ETH_DEV_SRIOV(dev).active) &&
+	    dev->data->dev_conf.intr_conf.rxq != 0) {
+		intr_vector = dev->data->nb_rx_queues;
+		if (intr_vector > ATL_MAX_INTR_QUEUE_NUM) {
+			PMD_INIT_LOG(ERR, "At most %d intr queues supported",
+					ATL_MAX_INTR_QUEUE_NUM);
+			return -ENOTSUP;
+		}
+		if (rte_intr_efd_enable(intr_handle, intr_vector)) {
+			PMD_INIT_LOG(ERR, "rte_intr_efd_enable failed");
+			return -1;
+		}
+	}
+
+	if (rte_intr_dp_is_en(intr_handle) && !intr_handle->intr_vec) {
+		intr_handle->intr_vec = rte_zmalloc("intr_vec",
+				    dev->data->nb_rx_queues * sizeof(int), 0);
+		if (intr_handle->intr_vec == NULL) {
+			PMD_INIT_LOG(ERR, "Failed to allocate %d rx_queues"
+				     " intr_vec", dev->data->nb_rx_queues);
+			return -ENOMEM;
+		}
+	}
+
 	/* initialize transmission unit */
 	atl_tx_init(dev);
 
@@ -285,6 +448,61 @@ atl_dev_start(struct rte_eth_dev *dev)
 		goto error;
 	}
 
+	err = hw->aq_fw_ops->update_link_status(hw);
+
+	if (err)
+		goto error;
+
+	dev->data->dev_link.link_status = hw->aq_link_status.mbps != 0;
+
+	link_speeds = &dev->data->dev_conf.link_speeds;
+
+	speed = 0x0;
+
+	if (*link_speeds == ETH_LINK_SPEED_AUTONEG) {
+		speed = hw->aq_nic_cfg->link_speed_msk;
+	} else {
+		if (*link_speeds & ETH_LINK_SPEED_10G)
+			speed |= AQ_NIC_RATE_10G;
+		if (*link_speeds & ETH_LINK_SPEED_5G)
+			speed |= AQ_NIC_RATE_5G;
+		if (*link_speeds & ETH_LINK_SPEED_1G)
+			speed |= AQ_NIC_RATE_1G;
+		if (*link_speeds & ETH_LINK_SPEED_2_5G)
+			speed |=  AQ_NIC_RATE_2G5;
+		if (*link_speeds & ETH_LINK_SPEED_100M)
+			speed |= AQ_NIC_RATE_100M;
+	}
+
+	err = hw->aq_fw_ops->set_link_speed(hw, speed);
+	if (err)
+		goto error;
+
+	if (rte_intr_allow_others(intr_handle)) {
+		/* check if lsc interrupt is enabled */
+		if (dev->data->dev_conf.intr_conf.lsc != 0)
+			atl_dev_lsc_interrupt_setup(dev, TRUE);
+		else
+			atl_dev_lsc_interrupt_setup(dev, FALSE);
+	} else {
+		rte_intr_callback_unregister(intr_handle,
+					     atl_dev_interrupt_handler, dev);
+		if (dev->data->dev_conf.intr_conf.lsc != 0)
+			PMD_INIT_LOG(INFO, "lsc won't enable because of"
+				     " no intr multiplex");
+	}
+
+	/* check if rxq interrupt is enabled */
+	if (dev->data->dev_conf.intr_conf.rxq != 0 &&
+	    rte_intr_dp_is_en(intr_handle))
+		atl_dev_rxq_interrupt_setup(dev);
+
+	/* enable uio/vfio intr/eventfd mapping */
+	rte_intr_enable(intr_handle);
+
+	/* resume enabled intr since hw reset */
+	atl_enable_intr(dev);
+
 	atl_print_adapter_info(hw);
 
 	return 0;
@@ -301,8 +519,16 @@ atl_dev_start(struct rte_eth_dev *dev)
 static void
 atl_dev_stop(struct rte_eth_dev *dev)
 {
+	struct rte_eth_link link;
 	struct aq_hw_s *hw =
 		ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+	struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
+
+	PMD_INIT_FUNC_TRACE();
+
+	/* disable interrupts */
+	atl_disable_intr(hw);
 
 	/* reset the NIC */
 	atl_reset_hw(hw);
@@ -314,6 +540,45 @@ atl_dev_stop(struct rte_eth_dev *dev)
 	dev->data->scattered_rx = 0;
 	dev->data->lro = 0;
 
+	/* Clear recorded link status */
+	memset(&link, 0, sizeof(link));
+	rte_atl_dev_atomic_write_link_status(dev, &link);
+
+	if (!rte_intr_allow_others(intr_handle))
+		/* resume to the default handler */
+		rte_intr_callback_register(intr_handle,
+					   atl_dev_interrupt_handler,
+					   (void *)dev);
+
+	/* Clean datapath event and queue/vec mapping */
+	rte_intr_efd_disable(intr_handle);
+	if (intr_handle->intr_vec != NULL) {
+		rte_free(intr_handle->intr_vec);
+		intr_handle->intr_vec = NULL;
+	}
+}
+
+/*
+ * Set device link up: enable tx.
+ */
+static int
+atl_dev_set_link_up(struct rte_eth_dev *dev)
+{
+	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+	return hw->aq_fw_ops->set_link_speed(hw,
+			hw->aq_nic_cfg->link_speed_msk);
+}
+
+/*
+ * Set device link down: disable tx.
+ */
+static int
+atl_dev_set_link_down(struct rte_eth_dev *dev)
+{
+	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+	return hw->aq_fw_ops->set_link_speed(hw, 0);
 }
 
 /*
@@ -402,6 +667,11 @@ atl_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 
 	dev_info->rx_desc_lim = rx_desc_lim;
 	dev_info->tx_desc_lim = tx_desc_lim;
+
+	dev_info->speed_capa = ETH_LINK_SPEED_1G | ETH_LINK_SPEED_10G;
+	dev_info->speed_capa |= ETH_LINK_SPEED_100M;
+	dev_info->speed_capa |= ETH_LINK_SPEED_2_5G;
+	dev_info->speed_capa |= ETH_LINK_SPEED_5G;
 }
 
 static const uint32_t *
@@ -426,6 +696,195 @@ atl_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 	return NULL;
 }
 
+/* return 0 means link status changed, -1 means not changed */
+static int
+atl_dev_link_update(struct rte_eth_dev *dev, int wait __rte_unused)
+{
+	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	struct atl_interrupt *intr =
+		ATL_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
+	struct rte_eth_link link, old;
+	int err = 0;
+
+	link.link_status = ETH_LINK_DOWN;
+	link.link_speed = 0;
+	link.link_duplex = ETH_LINK_FULL_DUPLEX;
+	link.link_autoneg = hw->is_autoneg ? ETH_LINK_AUTONEG : ETH_LINK_FIXED;
+	memset(&old, 0, sizeof(old));
+
+	/* load old link status */
+	rte_atl_dev_atomic_read_link_status(dev, &old);
+
+	/* read current link status */
+	err = hw->aq_fw_ops->update_link_status(hw);
+
+	if (err)
+		return 0;
+
+	if (hw->aq_link_status.mbps == 0) {
+		/* write default (down) link status */
+		rte_atl_dev_atomic_write_link_status(dev, &link);
+		if (link.link_status == old.link_status)
+			return -1;
+		return 0;
+	}
+
+	intr->flags &= ~ATL_FLAG_NEED_LINK_CONFIG;
+
+	link.link_status = ETH_LINK_UP;
+	link.link_duplex = ETH_LINK_FULL_DUPLEX;
+	link.link_speed = hw->aq_link_status.mbps;
+
+	rte_atl_dev_atomic_write_link_status(dev, &link);
+
+	if (link.link_status == old.link_status)
+		return -1;
+
+	return 0;
+}
+
+
+/**
+ * It clears the interrupt causes and enables the interrupt.
+ * It will be called once only during nic initialized.
+ *
+ * @param dev
+ *  Pointer to struct rte_eth_dev.
+ * @param on
+ *  Enable or Disable.
+ *
+ * @return
+ *  - On success, zero.
+ *  - On failure, a negative value.
+ */
+
+static int
+atl_dev_lsc_interrupt_setup(struct rte_eth_dev *dev, uint8_t on __rte_unused)
+{
+	atl_dev_link_status_print(dev);
+	return 0;
+}
+
+static int
+atl_dev_rxq_interrupt_setup(struct rte_eth_dev *dev __rte_unused)
+{
+	return 0;
+}
+
+
+static int
+atl_dev_interrupt_get_status(struct rte_eth_dev *dev)
+{
+	struct atl_interrupt *intr =
+		ATL_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
+	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	u64 cause = 0;
+
+	hw_atl_b0_hw_irq_read(hw, &cause);
+
+	atl_disable_intr(hw);
+	intr->flags = cause & BIT(ATL_IRQ_CAUSE_LINK) ?
+			ATL_FLAG_NEED_LINK_UPDATE : 0;
+
+	return 0;
+}
+
+/**
+ * It gets and then prints the link status.
+ *
+ * @param dev
+ *  Pointer to struct rte_eth_dev.
+ *
+ * @return
+ *  - On success, zero.
+ *  - On failure, a negative value.
+ */
+static void
+atl_dev_link_status_print(struct rte_eth_dev *dev)
+{
+	struct rte_eth_link link;
+
+	memset(&link, 0, sizeof(link));
+	rte_atl_dev_atomic_read_link_status(dev, &link);
+	if (link.link_status) {
+		PMD_DRV_LOG(INFO, "Port %d: Link Up - speed %u Mbps - %s",
+					(int)(dev->data->port_id),
+					(unsigned int)link.link_speed,
+			link.link_duplex == ETH_LINK_FULL_DUPLEX ?
+					"full-duplex" : "half-duplex");
+	} else {
+		PMD_DRV_LOG(INFO, " Port %d: Link Down",
+				(int)(dev->data->port_id));
+	}
+
+
+#ifdef DEBUG
+{
+	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+
+	PMD_DRV_LOG(DEBUG, "PCI Address: " PCI_PRI_FMT,
+				pci_dev->addr.domain,
+				pci_dev->addr.bus,
+				pci_dev->addr.devid,
+				pci_dev->addr.function);
+}
+#endif
+
+	PMD_DRV_LOG(INFO, "Link speed:%d", link.link_speed);
+}
+
+/*
+ * It executes link_update after knowing an interrupt occurred.
+ *
+ * @param dev
+ *  Pointer to struct rte_eth_dev.
+ *
+ * @return
+ *  - On success, zero.
+ *  - On failure, a negative value.
+ */
+static int
+atl_dev_interrupt_action(struct rte_eth_dev *dev,
+			   struct rte_intr_handle *intr_handle)
+{
+	struct atl_interrupt *intr =
+		ATL_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
+
+	if (intr->flags & ATL_FLAG_NEED_LINK_UPDATE) {
+		atl_dev_link_update(dev, 0);
+		intr->flags &= ~ATL_FLAG_NEED_LINK_UPDATE;
+		atl_dev_link_status_print(dev);
+		_rte_eth_dev_callback_process(dev,
+			RTE_ETH_EVENT_INTR_LSC, NULL);
+	}
+
+	atl_enable_intr(dev);
+	rte_intr_enable(intr_handle);
+
+	return 0;
+}
+
+/**
+ * Interrupt handler triggered by NIC  for handling
+ * specific interrupt.
+ *
+ * @param handle
+ *  Pointer to interrupt handle.
+ * @param param
+ *  The address of parameter (struct rte_eth_dev *) regsitered before.
+ *
+ * @return
+ *  void
+ */
+static void
+atl_dev_interrupt_handler(void *param)
+{
+	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
+
+	atl_dev_interrupt_get_status(dev);
+	atl_dev_interrupt_action(dev, dev->intr_handle);
+}
+
 RTE_PMD_REGISTER_PCI(net_atlantic, rte_atl_pmd);
 RTE_PMD_REGISTER_PCI_TABLE(net_atlantic, pci_id_atl_map);
 RTE_PMD_REGISTER_KMOD_DEP(net_atlantic, "* igb_uio | uio_pci_generic");
diff --git a/drivers/net/atlantic/atl_ethdev.h b/drivers/net/atlantic/atl_ethdev.h
index cafe37cdf963..f75ed0fd1127 100644
--- a/drivers/net/atlantic/atl_ethdev.h
+++ b/drivers/net/atlantic/atl_ethdev.h
@@ -15,6 +15,16 @@
 #define ATL_DEV_TO_ADAPTER(dev) \
 	((struct atl_adapter *)(dev)->data->dev_private)
 
+#define ATL_DEV_PRIVATE_TO_INTR(adapter) \
+	(&((struct atl_adapter *)adapter)->intr)
+
+#define ATL_FLAG_NEED_LINK_UPDATE (uint32_t)(1 << 0)
+#define ATL_FLAG_NEED_LINK_CONFIG (uint32_t)(4 << 0)
+
+struct atl_interrupt {
+	uint32_t flags;
+	uint32_t mask;
+};
 
 /*
  * Structure to store private data for each driver instance (for each port).
@@ -22,6 +32,7 @@
 struct atl_adapter {
 	struct aq_hw_s             hw;
 	struct aq_hw_cfg_s         hw_cfg;
+	struct atl_interrupt       intr;
 };
 
 /*
@@ -39,6 +50,11 @@ int atl_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);
 
+int atl_dev_rx_queue_intr_enable(struct rte_eth_dev *eth_dev,
+				 uint16_t queue_id);
+int atl_dev_rx_queue_intr_disable(struct rte_eth_dev *eth_dev,
+				  uint16_t queue_id);
+
 int atl_rx_init(struct rte_eth_dev *dev);
 int atl_tx_init(struct rte_eth_dev *dev);
 
diff --git a/drivers/net/atlantic/atl_rxtx.c b/drivers/net/atlantic/atl_rxtx.c
index 172d5fb232f2..9d82a0d74f22 100644
--- a/drivers/net/atlantic/atl_rxtx.c
+++ b/drivers/net/atlantic/atl_rxtx.c
@@ -620,6 +620,42 @@ atl_stop_queues(struct rte_eth_dev *dev)
 	return 0;
 }
 
+static int
+atl_rx_enable_intr(struct rte_eth_dev *dev, uint16_t queue_id, bool enable)
+{
+	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	struct atl_rx_queue *rxq;
+
+	PMD_INIT_FUNC_TRACE();
+
+	if (queue_id >= dev->data->nb_rx_queues) {
+		PMD_DRV_LOG(ERR, "Invalid RX queue id=%d", queue_id);
+		return -EINVAL;
+	}
+
+	rxq = dev->data->rx_queues[queue_id];
+
+	if (rxq == NULL)
+		return 0;
+
+	/* Mapping interrupt vector */
+	hw_atl_itr_irq_map_en_rx_set(hw, enable, queue_id);
+
+	return 0;
+}
+
+int
+atl_dev_rx_queue_intr_enable(struct rte_eth_dev *eth_dev, uint16_t queue_id)
+{
+	return atl_rx_enable_intr(eth_dev, queue_id, true);
+}
+
+int
+atl_dev_rx_queue_intr_disable(struct rte_eth_dev *eth_dev, uint16_t queue_id)
+{
+	return atl_rx_enable_intr(eth_dev, queue_id, false);
+}
+
 uint16_t
 atl_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
 	      uint16_t nb_pkts)
diff --git a/drivers/net/atlantic/atl_types.h b/drivers/net/atlantic/atl_types.h
index 85f768ce7d93..5f840cc8d63d 100644
--- a/drivers/net/atlantic/atl_types.h
+++ b/drivers/net/atlantic/atl_types.h
@@ -93,11 +93,13 @@ struct aq_hw_s {
 	void *mmio;
 
 	struct aq_hw_link_status_s aq_link_status;
+	bool is_autoneg;
 
 	struct hw_aq_atl_utils_mbox mbox;
 	struct hw_atl_stats_s last_stats;
 	struct aq_stats_s curr_stats;
 
+	u64 speed;
 	unsigned int chip_features;
 	u32 fw_ver_actual;
 	u32 mbox_addr;
-- 
2.7.4