X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Ftxgbe%2Ftxgbe_ethdev.c;h=58d72bbfa3fd1f536726e380925f416874f7bf6e;hb=0c061eadec5947092e31a3b9310fc89124eeb884;hp=844ed7d63607edbef231ce5ce63e0d854461ab29;hpb=86d8adc7702ce12e94dfc9b222f651ea6bb221f3;p=dpdk.git

diff --git a/drivers/net/txgbe/txgbe_ethdev.c b/drivers/net/txgbe/txgbe_ethdev.c
index 844ed7d636..58d72bbfa3 100644
--- a/drivers/net/txgbe/txgbe_ethdev.c
+++ b/drivers/net/txgbe/txgbe_ethdev.c
@@ -8,15 +8,34 @@
 #include <string.h>
 #include <rte_common.h>
 #include <rte_ethdev_pci.h>
+
+#include <rte_interrupts.h>
 #include <rte_pci.h>
 #include <rte_memory.h>
+#include <rte_eal.h>
+#include <rte_alarm.h>
 
 #include "txgbe_logs.h"
 #include "base/txgbe.h"
 #include "txgbe_ethdev.h"
 #include "txgbe_rxtx.h"
 
+static int  txgbe_dev_set_link_up(struct rte_eth_dev *dev);
+static int  txgbe_dev_set_link_down(struct rte_eth_dev *dev);
 static int txgbe_dev_close(struct rte_eth_dev *dev);
+static int txgbe_dev_link_update(struct rte_eth_dev *dev,
+				int wait_to_complete);
+
+static void txgbe_dev_link_status_print(struct rte_eth_dev *dev);
+static int txgbe_dev_lsc_interrupt_setup(struct rte_eth_dev *dev, uint8_t on);
+static int txgbe_dev_macsec_interrupt_setup(struct rte_eth_dev *dev);
+static int txgbe_dev_rxq_interrupt_setup(struct rte_eth_dev *dev);
+static int txgbe_dev_interrupt_get_status(struct rte_eth_dev *dev);
+static int txgbe_dev_interrupt_action(struct rte_eth_dev *dev,
+				      struct rte_intr_handle *handle);
+static void txgbe_dev_interrupt_handler(void *param);
+static void txgbe_dev_interrupt_delayed_handler(void *param);
+static void txgbe_configure_msix(struct rte_eth_dev *dev);
 
 /*
  * The set of PCI devices this driver supports
@@ -59,6 +78,29 @@ txgbe_is_sfp(struct txgbe_hw *hw)
 	}
 }
 
+static inline void
+txgbe_enable_intr(struct rte_eth_dev *dev)
+{
+	struct txgbe_interrupt *intr = TXGBE_DEV_INTR(dev);
+	struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+
+	wr32(hw, TXGBE_IENMISC, intr->mask_misc);
+	wr32(hw, TXGBE_IMC(0), TXGBE_IMC_MASK);
+	wr32(hw, TXGBE_IMC(1), TXGBE_IMC_MASK);
+	txgbe_flush(hw);
+}
+
+static void
+txgbe_disable_intr(struct txgbe_hw *hw)
+{
+	PMD_INIT_FUNC_TRACE();
+
+	wr32(hw, TXGBE_IENMISC, ~BIT_MASK32);
+	wr32(hw, TXGBE_IMS(0), TXGBE_IMC_MASK);
+	wr32(hw, TXGBE_IMS(1), TXGBE_IMC_MASK);
+	txgbe_flush(hw);
+}
+
 static int
 eth_txgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
 {
@@ -145,6 +187,9 @@ eth_txgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
 		return -EIO;
 	}
 
+	/* disable interrupt */
+	txgbe_disable_intr(hw);
+
 	/* Allocate memory for storing MAC addresses */
 	eth_dev->data->mac_addrs = rte_zmalloc("txgbe", RTE_ETHER_ADDR_LEN *
 					       hw->mac.num_rar_entries, 0);
@@ -182,9 +227,15 @@ eth_txgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
 		     eth_dev->data->port_id, pci_dev->id.vendor_id,
 		     pci_dev->id.device_id);
 
+	rte_intr_callback_register(intr_handle,
+				   txgbe_dev_interrupt_handler, eth_dev);
+
 	/* enable uio/vfio intr/eventfd mapping */
 	rte_intr_enable(intr_handle);
 
+	/* enable support intr */
+	txgbe_enable_intr(eth_dev);
+
 	return 0;
 }
 
@@ -252,6 +303,254 @@ static struct rte_pci_driver rte_txgbe_pmd = {
 	.remove = eth_txgbe_pci_remove,
 };
 
+static int
+txgbe_check_vf_rss_rxq_num(struct rte_eth_dev *dev, uint16_t nb_rx_q)
+{
+	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+
+	switch (nb_rx_q) {
+	case 1:
+	case 2:
+		RTE_ETH_DEV_SRIOV(dev).active = ETH_64_POOLS;
+		break;
+	case 4:
+		RTE_ETH_DEV_SRIOV(dev).active = ETH_32_POOLS;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool =
+		TXGBE_MAX_RX_QUEUE_NUM / RTE_ETH_DEV_SRIOV(dev).active;
+	RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx =
+		pci_dev->max_vfs * RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
+	return 0;
+}
+
+static int
+txgbe_check_mq_mode(struct rte_eth_dev *dev)
+{
+	struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
+	uint16_t nb_rx_q = dev->data->nb_rx_queues;
+	uint16_t nb_tx_q = dev->data->nb_tx_queues;
+
+	if (RTE_ETH_DEV_SRIOV(dev).active != 0) {
+		/* check multi-queue mode */
+		switch (dev_conf->rxmode.mq_mode) {
+		case ETH_MQ_RX_VMDQ_DCB:
+			PMD_INIT_LOG(INFO, "ETH_MQ_RX_VMDQ_DCB mode supported in SRIOV");
+			break;
+		case ETH_MQ_RX_VMDQ_DCB_RSS:
+			/* DCB/RSS VMDQ in SRIOV mode, not implement yet */
+			PMD_INIT_LOG(ERR, "SRIOV active,"
+					" unsupported mq_mode rx %d.",
+					dev_conf->rxmode.mq_mode);
+			return -EINVAL;
+		case ETH_MQ_RX_RSS:
+		case ETH_MQ_RX_VMDQ_RSS:
+			dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_VMDQ_RSS;
+			if (nb_rx_q <= RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool)
+				if (txgbe_check_vf_rss_rxq_num(dev, nb_rx_q)) {
+					PMD_INIT_LOG(ERR, "SRIOV is active,"
+						" invalid queue number"
+						" for VMDQ RSS, allowed"
+						" value are 1, 2 or 4.");
+					return -EINVAL;
+				}
+			break;
+		case ETH_MQ_RX_VMDQ_ONLY:
+		case ETH_MQ_RX_NONE:
+			/* if nothing mq mode configure, use default scheme */
+			dev->data->dev_conf.rxmode.mq_mode =
+				ETH_MQ_RX_VMDQ_ONLY;
+			break;
+		default: /* ETH_MQ_RX_DCB, ETH_MQ_RX_DCB_RSS or ETH_MQ_TX_DCB*/
+			/* SRIOV only works in VMDq enable mode */
+			PMD_INIT_LOG(ERR, "SRIOV is active,"
+					" wrong mq_mode rx %d.",
+					dev_conf->rxmode.mq_mode);
+			return -EINVAL;
+		}
+
+		switch (dev_conf->txmode.mq_mode) {
+		case ETH_MQ_TX_VMDQ_DCB:
+			PMD_INIT_LOG(INFO, "ETH_MQ_TX_VMDQ_DCB mode supported in SRIOV");
+			dev->data->dev_conf.txmode.mq_mode = ETH_MQ_TX_VMDQ_DCB;
+			break;
+		default: /* ETH_MQ_TX_VMDQ_ONLY or ETH_MQ_TX_NONE */
+			dev->data->dev_conf.txmode.mq_mode =
+				ETH_MQ_TX_VMDQ_ONLY;
+			break;
+		}
+
+		/* check valid queue number */
+		if ((nb_rx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool) ||
+		    (nb_tx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool)) {
+			PMD_INIT_LOG(ERR, "SRIOV is active,"
+					" nb_rx_q=%d nb_tx_q=%d queue number"
+					" must be less than or equal to %d.",
+					nb_rx_q, nb_tx_q,
+					RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool);
+			return -EINVAL;
+		}
+	} else {
+		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB_RSS) {
+			PMD_INIT_LOG(ERR, "VMDQ+DCB+RSS mq_mode is"
+					  " not supported.");
+			return -EINVAL;
+		}
+		/* check configuration for vmdb+dcb mode */
+		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB) {
+			const struct rte_eth_vmdq_dcb_conf *conf;
+
+			if (nb_rx_q != TXGBE_VMDQ_DCB_NB_QUEUES) {
+				PMD_INIT_LOG(ERR, "VMDQ+DCB, nb_rx_q != %d.",
+						TXGBE_VMDQ_DCB_NB_QUEUES);
+				return -EINVAL;
+			}
+			conf = &dev_conf->rx_adv_conf.vmdq_dcb_conf;
+			if (!(conf->nb_queue_pools == ETH_16_POOLS ||
+			       conf->nb_queue_pools == ETH_32_POOLS)) {
+				PMD_INIT_LOG(ERR, "VMDQ+DCB selected,"
+						" nb_queue_pools must be %d or %d.",
+						ETH_16_POOLS, ETH_32_POOLS);
+				return -EINVAL;
+			}
+		}
+		if (dev_conf->txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB) {
+			const struct rte_eth_vmdq_dcb_tx_conf *conf;
+
+			if (nb_tx_q != TXGBE_VMDQ_DCB_NB_QUEUES) {
+				PMD_INIT_LOG(ERR, "VMDQ+DCB, nb_tx_q != %d",
+						 TXGBE_VMDQ_DCB_NB_QUEUES);
+				return -EINVAL;
+			}
+			conf = &dev_conf->tx_adv_conf.vmdq_dcb_tx_conf;
+			if (!(conf->nb_queue_pools == ETH_16_POOLS ||
+			       conf->nb_queue_pools == ETH_32_POOLS)) {
+				PMD_INIT_LOG(ERR, "VMDQ+DCB selected,"
+						" nb_queue_pools != %d and"
+						" nb_queue_pools != %d.",
+						ETH_16_POOLS, ETH_32_POOLS);
+				return -EINVAL;
+			}
+		}
+
+		/* For DCB mode check our configuration before we go further */
+		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) {
+			const struct rte_eth_dcb_rx_conf *conf;
+
+			conf = &dev_conf->rx_adv_conf.dcb_rx_conf;
+			if (!(conf->nb_tcs == ETH_4_TCS ||
+			       conf->nb_tcs == ETH_8_TCS)) {
+				PMD_INIT_LOG(ERR, "DCB selected, nb_tcs != %d"
+						" and nb_tcs != %d.",
+						ETH_4_TCS, ETH_8_TCS);
+				return -EINVAL;
+			}
+		}
+
+		if (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB) {
+			const struct rte_eth_dcb_tx_conf *conf;
+
+			conf = &dev_conf->tx_adv_conf.dcb_tx_conf;
+			if (!(conf->nb_tcs == ETH_4_TCS ||
+			       conf->nb_tcs == ETH_8_TCS)) {
+				PMD_INIT_LOG(ERR, "DCB selected, nb_tcs != %d"
+						" and nb_tcs != %d.",
+						ETH_4_TCS, ETH_8_TCS);
+				return -EINVAL;
+			}
+		}
+	}
+	return 0;
+}
+
+static int
+txgbe_dev_configure(struct rte_eth_dev *dev)
+{
+	struct txgbe_interrupt *intr = TXGBE_DEV_INTR(dev);
+	struct txgbe_adapter *adapter = TXGBE_DEV_ADAPTER(dev);
+	int ret;
+
+	PMD_INIT_FUNC_TRACE();
+
+	if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
+		dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
+
+	/* multiple queue mode checking */
+	ret  = txgbe_check_mq_mode(dev);
+	if (ret != 0) {
+		PMD_DRV_LOG(ERR, "txgbe_check_mq_mode fails with %d.",
+			    ret);
+		return ret;
+	}
+
+	/* set flag to update link status after init */
+	intr->flags |= TXGBE_FLAG_NEED_LINK_UPDATE;
+
+	/*
+	 * Initialize to TRUE. If any of Rx queues doesn't meet the bulk
+	 * allocation Rx preconditions we will reset it.
+	 */
+	adapter->rx_bulk_alloc_allowed = true;
+
+	return 0;
+}
+
+static void
+txgbe_dev_phy_intr_setup(struct rte_eth_dev *dev)
+{
+	struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+	struct txgbe_interrupt *intr = TXGBE_DEV_INTR(dev);
+	uint32_t gpie;
+
+	gpie = rd32(hw, TXGBE_GPIOINTEN);
+	gpie |= TXGBE_GPIOBIT_6;
+	wr32(hw, TXGBE_GPIOINTEN, gpie);
+	intr->mask_misc |= TXGBE_ICRMISC_GPIO;
+}
+
+/*
+ * Set device link up: enable tx.
+ */
+static int
+txgbe_dev_set_link_up(struct rte_eth_dev *dev)
+{
+	struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+
+	if (hw->phy.media_type == txgbe_media_type_copper) {
+		/* Turn on the copper */
+		hw->phy.set_phy_power(hw, true);
+	} else {
+		/* Turn on the laser */
+		hw->mac.enable_tx_laser(hw);
+		txgbe_dev_link_update(dev, 0);
+	}
+
+	return 0;
+}
+
+/*
+ * Set device link down: disable tx.
+ */
+static int
+txgbe_dev_set_link_down(struct rte_eth_dev *dev)
+{
+	struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+
+	if (hw->phy.media_type == txgbe_media_type_copper) {
+		/* Turn off the copper */
+		hw->phy.set_phy_power(hw, false);
+	} else {
+		/* Turn off the laser */
+		hw->mac.disable_tx_laser(hw);
+		txgbe_dev_link_update(dev, 0);
+	}
+
+	return 0;
+}
+
 /*
  * Reset and stop device.
  */
@@ -260,12 +559,30 @@ txgbe_dev_close(struct rte_eth_dev *dev)
 {
 	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 	struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
+	int retries = 0;
+	int ret;
 
 	PMD_INIT_FUNC_TRACE();
 
 	/* disable uio intr before callback unregister */
 	rte_intr_disable(intr_handle);
 
+	do {
+		ret = rte_intr_callback_unregister(intr_handle,
+				txgbe_dev_interrupt_handler, dev);
+		if (ret >= 0 || ret == -ENOENT) {
+			break;
+		} else if (ret != -EAGAIN) {
+			PMD_INIT_LOG(ERR,
+				"intr callback unregister failed: %d",
+				ret);
+		}
+		rte_delay_ms(100);
+	} while (retries++ < (10 + TXGBE_LINK_UP_TIME));
+
+	/* cancel the delay handler before remove dev */
+	rte_eal_alarm_cancel(txgbe_dev_interrupt_delayed_handler, dev);
+
 	rte_free(dev->data->mac_addrs);
 	dev->data->mac_addrs = NULL;
 
@@ -338,8 +655,495 @@ txgbe_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 	return 0;
 }
 
+void
+txgbe_dev_setup_link_alarm_handler(void *param)
+{
+	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
+	struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+	struct txgbe_interrupt *intr = TXGBE_DEV_INTR(dev);
+	u32 speed;
+	bool autoneg = false;
+
+	speed = hw->phy.autoneg_advertised;
+	if (!speed)
+		hw->mac.get_link_capabilities(hw, &speed, &autoneg);
+
+	hw->mac.setup_link(hw, speed, true);
+
+	intr->flags &= ~TXGBE_FLAG_NEED_LINK_CONFIG;
+}
+
+/* return 0 means link status changed, -1 means not changed */
+int
+txgbe_dev_link_update_share(struct rte_eth_dev *dev,
+			    int wait_to_complete)
+{
+	struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+	struct rte_eth_link link;
+	u32 link_speed = TXGBE_LINK_SPEED_UNKNOWN;
+	struct txgbe_interrupt *intr = TXGBE_DEV_INTR(dev);
+	bool link_up;
+	int err;
+	int wait = 1;
+
+	memset(&link, 0, sizeof(link));
+	link.link_status = ETH_LINK_DOWN;
+	link.link_speed = ETH_SPEED_NUM_NONE;
+	link.link_duplex = ETH_LINK_HALF_DUPLEX;
+	link.link_autoneg = ETH_LINK_AUTONEG;
+
+	hw->mac.get_link_status = true;
+
+	if (intr->flags & TXGBE_FLAG_NEED_LINK_CONFIG)
+		return rte_eth_linkstatus_set(dev, &link);
+
+	/* check if it needs to wait to complete, if lsc interrupt is enabled */
+	if (wait_to_complete == 0 || dev->data->dev_conf.intr_conf.lsc != 0)
+		wait = 0;
+
+	err = hw->mac.check_link(hw, &link_speed, &link_up, wait);
+
+	if (err != 0) {
+		link.link_speed = ETH_SPEED_NUM_100M;
+		link.link_duplex = ETH_LINK_FULL_DUPLEX;
+		return rte_eth_linkstatus_set(dev, &link);
+	}
+
+	if (link_up == 0) {
+		if (hw->phy.media_type == txgbe_media_type_fiber) {
+			intr->flags |= TXGBE_FLAG_NEED_LINK_CONFIG;
+			rte_eal_alarm_set(10,
+				txgbe_dev_setup_link_alarm_handler, dev);
+		}
+		return rte_eth_linkstatus_set(dev, &link);
+	}
+
+	intr->flags &= ~TXGBE_FLAG_NEED_LINK_CONFIG;
+	link.link_status = ETH_LINK_UP;
+	link.link_duplex = ETH_LINK_FULL_DUPLEX;
+
+	switch (link_speed) {
+	default:
+	case TXGBE_LINK_SPEED_UNKNOWN:
+		link.link_duplex = ETH_LINK_FULL_DUPLEX;
+		link.link_speed = ETH_SPEED_NUM_100M;
+		break;
+
+	case TXGBE_LINK_SPEED_100M_FULL:
+		link.link_speed = ETH_SPEED_NUM_100M;
+		break;
+
+	case TXGBE_LINK_SPEED_1GB_FULL:
+		link.link_speed = ETH_SPEED_NUM_1G;
+		break;
+
+	case TXGBE_LINK_SPEED_2_5GB_FULL:
+		link.link_speed = ETH_SPEED_NUM_2_5G;
+		break;
+
+	case TXGBE_LINK_SPEED_5GB_FULL:
+		link.link_speed = ETH_SPEED_NUM_5G;
+		break;
+
+	case TXGBE_LINK_SPEED_10GB_FULL:
+		link.link_speed = ETH_SPEED_NUM_10G;
+		break;
+	}
+
+	return rte_eth_linkstatus_set(dev, &link);
+}
+
+static int
+txgbe_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
+{
+	return txgbe_dev_link_update_share(dev, wait_to_complete);
+}
+
+/**
+ * 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
+txgbe_dev_lsc_interrupt_setup(struct rte_eth_dev *dev, uint8_t on)
+{
+	struct txgbe_interrupt *intr = TXGBE_DEV_INTR(dev);
+
+	txgbe_dev_link_status_print(dev);
+	if (on)
+		intr->mask_misc |= TXGBE_ICRMISC_LSC;
+	else
+		intr->mask_misc &= ~TXGBE_ICRMISC_LSC;
+
+	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.
+ *
+ * @return
+ *  - On success, zero.
+ *  - On failure, a negative value.
+ */
+static int
+txgbe_dev_rxq_interrupt_setup(struct rte_eth_dev *dev)
+{
+	struct txgbe_interrupt *intr = TXGBE_DEV_INTR(dev);
+
+	intr->mask[0] |= TXGBE_ICR_MASK;
+	intr->mask[1] |= TXGBE_ICR_MASK;
+
+	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.
+ *
+ * @return
+ *  - On success, zero.
+ *  - On failure, a negative value.
+ */
+static int
+txgbe_dev_macsec_interrupt_setup(struct rte_eth_dev *dev)
+{
+	struct txgbe_interrupt *intr = TXGBE_DEV_INTR(dev);
+
+	intr->mask_misc |= TXGBE_ICRMISC_LNKSEC;
+
+	return 0;
+}
+
+/*
+ * It reads ICR and sets flag (TXGBE_ICRMISC_LSC) for the link_update.
+ *
+ * @param dev
+ *  Pointer to struct rte_eth_dev.
+ *
+ * @return
+ *  - On success, zero.
+ *  - On failure, a negative value.
+ */
+static int
+txgbe_dev_interrupt_get_status(struct rte_eth_dev *dev)
+{
+	uint32_t eicr;
+	struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+	struct txgbe_interrupt *intr = TXGBE_DEV_INTR(dev);
+
+	/* clear all cause mask */
+	txgbe_disable_intr(hw);
+
+	/* read-on-clear nic registers here */
+	eicr = ((u32 *)hw->isb_mem)[TXGBE_ISB_MISC];
+	PMD_DRV_LOG(DEBUG, "eicr %x", eicr);
+
+	intr->flags = 0;
+
+	/* set flag for async link update */
+	if (eicr & TXGBE_ICRMISC_LSC)
+		intr->flags |= TXGBE_FLAG_NEED_LINK_UPDATE;
+
+	if (eicr & TXGBE_ICRMISC_VFMBX)
+		intr->flags |= TXGBE_FLAG_MAILBOX;
+
+	if (eicr & TXGBE_ICRMISC_LNKSEC)
+		intr->flags |= TXGBE_FLAG_MACSEC;
+
+	if (eicr & TXGBE_ICRMISC_GPIO)
+		intr->flags |= TXGBE_FLAG_PHY_INTERRUPT;
+
+	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
+txgbe_dev_link_status_print(struct rte_eth_dev *dev)
+{
+	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+	struct rte_eth_link link;
+
+	rte_eth_linkstatus_get(dev, &link);
+
+	if (link.link_status) {
+		PMD_INIT_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_INIT_LOG(INFO, " Port %d: Link Down",
+				(int)(dev->data->port_id));
+	}
+	PMD_INIT_LOG(DEBUG, "PCI Address: " PCI_PRI_FMT,
+				pci_dev->addr.domain,
+				pci_dev->addr.bus,
+				pci_dev->addr.devid,
+				pci_dev->addr.function);
+}
+
+/*
+ * 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
+txgbe_dev_interrupt_action(struct rte_eth_dev *dev,
+			   struct rte_intr_handle *intr_handle)
+{
+	struct txgbe_interrupt *intr = TXGBE_DEV_INTR(dev);
+	int64_t timeout;
+	struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+
+	PMD_DRV_LOG(DEBUG, "intr action type %d", intr->flags);
+
+	if (intr->flags & TXGBE_FLAG_MAILBOX)
+		intr->flags &= ~TXGBE_FLAG_MAILBOX;
+
+	if (intr->flags & TXGBE_FLAG_PHY_INTERRUPT) {
+		hw->phy.handle_lasi(hw);
+		intr->flags &= ~TXGBE_FLAG_PHY_INTERRUPT;
+	}
+
+	if (intr->flags & TXGBE_FLAG_NEED_LINK_UPDATE) {
+		struct rte_eth_link link;
+
+		/*get the link status before link update, for predicting later*/
+		rte_eth_linkstatus_get(dev, &link);
+
+		txgbe_dev_link_update(dev, 0);
+
+		/* likely to up */
+		if (!link.link_status)
+			/* handle it 1 sec later, wait it being stable */
+			timeout = TXGBE_LINK_UP_CHECK_TIMEOUT;
+		/* likely to down */
+		else
+			/* handle it 4 sec later, wait it being stable */
+			timeout = TXGBE_LINK_DOWN_CHECK_TIMEOUT;
+
+		txgbe_dev_link_status_print(dev);
+		if (rte_eal_alarm_set(timeout * 1000,
+				      txgbe_dev_interrupt_delayed_handler,
+				      (void *)dev) < 0) {
+			PMD_DRV_LOG(ERR, "Error setting alarm");
+		} else {
+			/* remember original mask */
+			intr->mask_misc_orig = intr->mask_misc;
+			/* only disable lsc interrupt */
+			intr->mask_misc &= ~TXGBE_ICRMISC_LSC;
+		}
+	}
+
+	PMD_DRV_LOG(DEBUG, "enable intr immediately");
+	txgbe_enable_intr(dev);
+	rte_intr_enable(intr_handle);
+
+	return 0;
+}
+
+/**
+ * Interrupt handler which shall be registered for alarm callback for delayed
+ * handling specific interrupt to wait for the stable nic state. As the
+ * NIC interrupt state is not stable for txgbe after link is just down,
+ * it needs to wait 4 seconds to get the stable status.
+ *
+ * @param handle
+ *  Pointer to interrupt handle.
+ * @param param
+ *  The address of parameter (struct rte_eth_dev *) registered before.
+ *
+ * @return
+ *  void
+ */
+static void
+txgbe_dev_interrupt_delayed_handler(void *param)
+{
+	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
+	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+	struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
+	struct txgbe_interrupt *intr = TXGBE_DEV_INTR(dev);
+	struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+	uint32_t eicr;
+
+	txgbe_disable_intr(hw);
+
+	eicr = ((u32 *)hw->isb_mem)[TXGBE_ISB_MISC];
+
+	if (intr->flags & TXGBE_FLAG_PHY_INTERRUPT) {
+		hw->phy.handle_lasi(hw);
+		intr->flags &= ~TXGBE_FLAG_PHY_INTERRUPT;
+	}
+
+	if (intr->flags & TXGBE_FLAG_NEED_LINK_UPDATE) {
+		txgbe_dev_link_update(dev, 0);
+		intr->flags &= ~TXGBE_FLAG_NEED_LINK_UPDATE;
+		txgbe_dev_link_status_print(dev);
+		rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC,
+					      NULL);
+	}
+
+	if (intr->flags & TXGBE_FLAG_MACSEC) {
+		rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_MACSEC,
+					      NULL);
+		intr->flags &= ~TXGBE_FLAG_MACSEC;
+	}
+
+	/* restore original mask */
+	intr->mask_misc = intr->mask_misc_orig;
+	intr->mask_misc_orig = 0;
+
+	PMD_DRV_LOG(DEBUG, "enable intr in delayed handler S[%08x]", eicr);
+	txgbe_enable_intr(dev);
+	rte_intr_enable(intr_handle);
+}
+
+/**
+ * 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 *) registered before.
+ *
+ * @return
+ *  void
+ */
+static void
+txgbe_dev_interrupt_handler(void *param)
+{
+	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
+
+	txgbe_dev_interrupt_get_status(dev);
+	txgbe_dev_interrupt_action(dev, dev->intr_handle);
+}
+
+/**
+ * set the IVAR registers, mapping interrupt causes to vectors
+ * @param hw
+ *  pointer to txgbe_hw struct
+ * @direction
+ *  0 for Rx, 1 for Tx, -1 for other causes
+ * @queue
+ *  queue to map the corresponding interrupt to
+ * @msix_vector
+ *  the vector to map to the corresponding queue
+ */
+void
+txgbe_set_ivar_map(struct txgbe_hw *hw, int8_t direction,
+		   uint8_t queue, uint8_t msix_vector)
+{
+	uint32_t tmp, idx;
+
+	if (direction == -1) {
+		/* other causes */
+		msix_vector |= TXGBE_IVARMISC_VLD;
+		idx = 0;
+		tmp = rd32(hw, TXGBE_IVARMISC);
+		tmp &= ~(0xFF << idx);
+		tmp |= (msix_vector << idx);
+		wr32(hw, TXGBE_IVARMISC, tmp);
+	} else {
+		/* rx or tx causes */
+		/* Workround for ICR lost */
+		idx = ((16 * (queue & 1)) + (8 * direction));
+		tmp = rd32(hw, TXGBE_IVAR(queue >> 1));
+		tmp &= ~(0xFF << idx);
+		tmp |= (msix_vector << idx);
+		wr32(hw, TXGBE_IVAR(queue >> 1), tmp);
+	}
+}
+
+/**
+ * Sets up the hardware to properly generate MSI-X interrupts
+ * @hw
+ *  board private structure
+ */
+static void
+txgbe_configure_msix(struct rte_eth_dev *dev)
+{
+	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+	struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
+	struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+	uint32_t queue_id, base = TXGBE_MISC_VEC_ID;
+	uint32_t vec = TXGBE_MISC_VEC_ID;
+	uint32_t gpie;
+
+	/* won't configure msix register if no mapping is done
+	 * between intr vector and event fd
+	 * but if misx has been enabled already, need to configure
+	 * auto clean, auto mask and throttling.
+	 */
+	gpie = rd32(hw, TXGBE_GPIE);
+	if (!rte_intr_dp_is_en(intr_handle) &&
+	    !(gpie & TXGBE_GPIE_MSIX))
+		return;
+
+	if (rte_intr_allow_others(intr_handle)) {
+		base = TXGBE_RX_VEC_START;
+		vec = base;
+	}
+
+	/* setup GPIE for MSI-x mode */
+	gpie = rd32(hw, TXGBE_GPIE);
+	gpie |= TXGBE_GPIE_MSIX;
+	wr32(hw, TXGBE_GPIE, gpie);
+
+	/* Populate the IVAR table and set the ITR values to the
+	 * corresponding register.
+	 */
+	if (rte_intr_dp_is_en(intr_handle)) {
+		for (queue_id = 0; queue_id < dev->data->nb_rx_queues;
+			queue_id++) {
+			/* by default, 1:1 mapping */
+			txgbe_set_ivar_map(hw, 0, queue_id, vec);
+			intr_handle->intr_vec[queue_id] = vec;
+			if (vec < base + intr_handle->nb_efd - 1)
+				vec++;
+		}
+
+		txgbe_set_ivar_map(hw, -1, 1, TXGBE_MISC_VEC_ID);
+	}
+	wr32(hw, TXGBE_ITR(TXGBE_MISC_VEC_ID),
+			TXGBE_ITR_IVAL_10G(TXGBE_QUEUE_ITR_INTERVAL_DEFAULT)
+			| TXGBE_ITR_WRDSA);
+}
+
 static const struct eth_dev_ops txgbe_eth_dev_ops = {
+	.dev_configure              = txgbe_dev_configure,
 	.dev_infos_get              = txgbe_dev_info_get,
+	.dev_set_link_up            = txgbe_dev_set_link_up,
+	.dev_set_link_down          = txgbe_dev_set_link_down,
 };
 
 RTE_PMD_REGISTER_PCI(net_txgbe, rte_txgbe_pmd);