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path: root/drivers/net/atlantic/atl_ethdev.c
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/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2018 Aquantia Corporation
 */

#include <rte_ethdev_pci.h>

#include "atl_ethdev.h"
#include "atl_common.h"
#include "atl_hw_regs.h"
#include "atl_logs.h"
#include "hw_atl/hw_atl_llh.h"
#include "hw_atl/hw_atl_b0.h"
#include "hw_atl/hw_atl_b0_internal.h"

static int eth_atl_dev_init(struct rte_eth_dev *eth_dev);
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 void atl_dev_promiscuous_enable(struct rte_eth_dev *dev);
static void atl_dev_promiscuous_disable(struct rte_eth_dev *dev);
static void atl_dev_allmulticast_enable(struct rte_eth_dev *dev);
static void atl_dev_allmulticast_disable(struct rte_eth_dev *dev);
static int  atl_dev_link_update(struct rte_eth_dev *dev, int wait);

static int atl_dev_xstats_get_names(struct rte_eth_dev *dev __rte_unused,
				    struct rte_eth_xstat_name *xstats_names,
				    unsigned int size);

static int atl_dev_stats_get(struct rte_eth_dev *dev,
				struct rte_eth_stats *stats);

static int atl_dev_xstats_get(struct rte_eth_dev *dev,
			      struct rte_eth_xstat *stats, unsigned int n);

static void atl_dev_stats_reset(struct rte_eth_dev *dev);

static int atl_fw_version_get(struct rte_eth_dev *dev, char *fw_version,
			      size_t fw_size);

static void atl_dev_info_get(struct rte_eth_dev *dev,
			       struct rte_eth_dev_info *dev_info);

static const uint32_t *atl_dev_supported_ptypes_get(struct rte_eth_dev *dev);

static int atl_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);

/* VLAN stuff */
static int atl_vlan_filter_set(struct rte_eth_dev *dev,
		uint16_t vlan_id, int on);

static int atl_vlan_offload_set(struct rte_eth_dev *dev, int mask);

static void atl_vlan_strip_queue_set(struct rte_eth_dev *dev,
				     uint16_t queue_id, int on);

static int atl_vlan_tpid_set(struct rte_eth_dev *dev,
			     enum rte_vlan_type vlan_type, uint16_t tpid);

/* EEPROM */
static int atl_dev_get_eeprom_length(struct rte_eth_dev *dev);
static int atl_dev_get_eeprom(struct rte_eth_dev *dev,
			      struct rte_dev_eeprom_info *eeprom);
static int atl_dev_set_eeprom(struct rte_eth_dev *dev,
			      struct rte_dev_eeprom_info *eeprom);

/* Regs */
static int atl_dev_get_regs(struct rte_eth_dev *dev,
			    struct rte_dev_reg_info *regs);

/* Flow control */
static int atl_flow_ctrl_get(struct rte_eth_dev *dev,
			       struct rte_eth_fc_conf *fc_conf);
static int atl_flow_ctrl_set(struct rte_eth_dev *dev,
			       struct rte_eth_fc_conf *fc_conf);

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 atl_add_mac_addr(struct rte_eth_dev *dev,
			    struct ether_addr *mac_addr,
			    uint32_t index, uint32_t pool);
static void atl_remove_mac_addr(struct rte_eth_dev *dev, uint32_t index);
static int atl_set_default_mac_addr(struct rte_eth_dev *dev,
					   struct ether_addr *mac_addr);

static int atl_dev_set_mc_addr_list(struct rte_eth_dev *dev,
				    struct ether_addr *mc_addr_set,
				    uint32_t nb_mc_addr);

/* RSS */
static int atl_reta_update(struct rte_eth_dev *dev,
			     struct rte_eth_rss_reta_entry64 *reta_conf,
			     uint16_t reta_size);
static int atl_reta_query(struct rte_eth_dev *dev,
			    struct rte_eth_rss_reta_entry64 *reta_conf,
			    uint16_t reta_size);
static int atl_rss_hash_update(struct rte_eth_dev *dev,
				 struct rte_eth_rss_conf *rss_conf);
static int atl_rss_hash_conf_get(struct rte_eth_dev *dev,
				   struct rte_eth_rss_conf *rss_conf);


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);

static void atl_dev_info_get(struct rte_eth_dev *dev,
				struct rte_eth_dev_info *dev_info);

int atl_logtype_init;
int atl_logtype_driver;

/*
 * The set of PCI devices this driver supports
 */
static const struct rte_pci_id pci_id_atl_map[] = {
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_0001) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_D100) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_D107) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_D108) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_D109) },

	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC100) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC107) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC108) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC109) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC111) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC112) },

	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC100S) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC107S) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC108S) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC109S) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC111S) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC112S) },

	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC111E) },
	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AQUANTIA, AQ_DEVICE_ID_AQC112E) },
	{ .vendor_id = 0, /* sentinel */ },
};

static struct rte_pci_driver rte_atl_pmd = {
	.id_table = pci_id_atl_map,
	.drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC |
		     RTE_PCI_DRV_IOVA_AS_VA,
	.probe = eth_atl_pci_probe,
	.remove = eth_atl_pci_remove,
};

#define ATL_RX_OFFLOADS (DEV_RX_OFFLOAD_VLAN_STRIP \
			| DEV_RX_OFFLOAD_IPV4_CKSUM \
			| DEV_RX_OFFLOAD_UDP_CKSUM \
			| DEV_RX_OFFLOAD_TCP_CKSUM \
			| DEV_RX_OFFLOAD_JUMBO_FRAME \
			| DEV_RX_OFFLOAD_VLAN_FILTER)

#define ATL_TX_OFFLOADS (DEV_TX_OFFLOAD_VLAN_INSERT \
			| DEV_TX_OFFLOAD_IPV4_CKSUM \
			| DEV_TX_OFFLOAD_UDP_CKSUM \
			| DEV_TX_OFFLOAD_TCP_CKSUM \
			| DEV_TX_OFFLOAD_TCP_TSO \
			| DEV_TX_OFFLOAD_MULTI_SEGS)

static const struct rte_eth_desc_lim rx_desc_lim = {
	.nb_max = ATL_MAX_RING_DESC,
	.nb_min = ATL_MIN_RING_DESC,
	.nb_align = ATL_RXD_ALIGN,
};

static const struct rte_eth_desc_lim tx_desc_lim = {
	.nb_max = ATL_MAX_RING_DESC,
	.nb_min = ATL_MIN_RING_DESC,
	.nb_align = ATL_TXD_ALIGN,
	.nb_seg_max = ATL_TX_MAX_SEG,
	.nb_mtu_seg_max = ATL_TX_MAX_SEG,
};

#define ATL_XSTATS_FIELD(name) { \
	#name, \
	offsetof(struct aq_stats_s, name) \
}

struct atl_xstats_tbl_s {
	const char *name;
	unsigned int offset;
};

static struct atl_xstats_tbl_s atl_xstats_tbl[] = {
	ATL_XSTATS_FIELD(uprc),
	ATL_XSTATS_FIELD(mprc),
	ATL_XSTATS_FIELD(bprc),
	ATL_XSTATS_FIELD(erpt),
	ATL_XSTATS_FIELD(uptc),
	ATL_XSTATS_FIELD(mptc),
	ATL_XSTATS_FIELD(bptc),
	ATL_XSTATS_FIELD(erpr),
	ATL_XSTATS_FIELD(ubrc),
	ATL_XSTATS_FIELD(ubtc),
	ATL_XSTATS_FIELD(mbrc),
	ATL_XSTATS_FIELD(mbtc),
	ATL_XSTATS_FIELD(bbrc),
	ATL_XSTATS_FIELD(bbtc),
};

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,

	/* PROMISC */
	.promiscuous_enable   = atl_dev_promiscuous_enable,
	.promiscuous_disable  = atl_dev_promiscuous_disable,
	.allmulticast_enable  = atl_dev_allmulticast_enable,
	.allmulticast_disable = atl_dev_allmulticast_disable,

	/* Link */
	.link_update	      = atl_dev_link_update,

	.get_reg              = atl_dev_get_regs,

	/* Stats */
	.stats_get	      = atl_dev_stats_get,
	.xstats_get	      = atl_dev_xstats_get,
	.xstats_get_names     = atl_dev_xstats_get_names,
	.stats_reset	      = atl_dev_stats_reset,
	.xstats_reset	      = atl_dev_stats_reset,

	.fw_version_get       = atl_fw_version_get,
	.dev_infos_get	      = atl_dev_info_get,
	.dev_supported_ptypes_get = atl_dev_supported_ptypes_get,

	.mtu_set              = atl_dev_mtu_set,

	/* VLAN */
	.vlan_filter_set      = atl_vlan_filter_set,
	.vlan_offload_set     = atl_vlan_offload_set,
	.vlan_tpid_set        = atl_vlan_tpid_set,
	.vlan_strip_queue_set = atl_vlan_strip_queue_set,

	/* Queue Control */
	.rx_queue_start	      = atl_rx_queue_start,
	.rx_queue_stop	      = atl_rx_queue_stop,
	.rx_queue_setup       = atl_rx_queue_setup,
	.rx_queue_release     = atl_rx_queue_release,

	.tx_queue_start	      = atl_tx_queue_start,
	.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,

	.rx_queue_count       = atl_rx_queue_count,
	.rx_descriptor_status = atl_dev_rx_descriptor_status,
	.tx_descriptor_status = atl_dev_tx_descriptor_status,

	/* EEPROM */
	.get_eeprom_length    = atl_dev_get_eeprom_length,
	.get_eeprom           = atl_dev_get_eeprom,
	.set_eeprom           = atl_dev_set_eeprom,

	/* Flow Control */
	.flow_ctrl_get	      = atl_flow_ctrl_get,
	.flow_ctrl_set	      = atl_flow_ctrl_set,

	/* MAC */
	.mac_addr_add	      = atl_add_mac_addr,
	.mac_addr_remove      = atl_remove_mac_addr,
	.mac_addr_set	      = atl_set_default_mac_addr,
	.set_mc_addr_list     = atl_dev_set_mc_addr_list,
	.rxq_info_get	      = atl_rxq_info_get,
	.txq_info_get	      = atl_txq_info_get,

	.reta_update          = atl_reta_update,
	.reta_query           = atl_reta_query,
	.rss_hash_update      = atl_rss_hash_update,
	.rss_hash_conf_get    = atl_rss_hash_conf_get,
};

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 int
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;

	PMD_INIT_FUNC_TRACE();

	eth_dev->dev_ops = &atl_eth_dev_ops;
	eth_dev->rx_pkt_burst = &atl_recv_pkts;
	eth_dev->tx_pkt_burst = &atl_xmit_pkts;
	eth_dev->tx_pkt_prepare = &atl_prep_pkts;

	/* For secondary processes, the primary process has done all the work */
	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
		return 0;

	/* Vendor and Device ID need to be set before init of shared code */
	hw->device_id = pci_dev->id.device_id;
	hw->vendor_id = pci_dev->id.vendor_id;
	hw->mmio = (void *)pci_dev->mem_resource[0].addr;

	/* Hardware configuration - hardcode */
	adapter->hw_cfg.is_lro = false;
	adapter->hw_cfg.wol = false;
	adapter->hw_cfg.is_rss = false;
	adapter->hw_cfg.num_rss_queues = HW_ATL_B0_RSS_MAX;

	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;

	adapter->hw_cfg.flow_control = (AQ_NIC_FC_RX | AQ_NIC_FC_TX);
	adapter->hw_cfg.aq_rss.indirection_table_size =
		HW_ATL_B0_RSS_REDIRECTION_MAX;

	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) {
		PMD_INIT_LOG(ERR, "MAC Malloc failed");
		return -ENOMEM;
	}

	err = hw_atl_utils_initfw(hw, &hw->aq_fw_ops);
	if (err)
		return err;

	/* Copy the permanent MAC address */
	if (hw->aq_fw_ops->get_mac_permanent(hw,
			eth_dev->data->mac_addrs->addr_bytes) != 0)
		return -EINVAL;

	/* Reset the hw statistics */
	atl_dev_stats_reset(eth_dev);

	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();

	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
		return -EPERM;

	hw = ATL_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);

	if (hw->adapter_stopped == 0)
		atl_dev_close(eth_dev);

	eth_dev->dev_ops = NULL;
	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;

	return 0;
}

static int
eth_atl_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 atl_adapter), eth_atl_dev_init);
}

static int
eth_atl_pci_remove(struct rte_pci_device *pci_dev)
{
	return rte_eth_dev_pci_generic_remove(pci_dev, eth_atl_dev_uninit);
}

static int
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;
}

/*
 * Configure device link speed and setup link.
 * It returns 0 on success.
 */
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;
	int status;
	int err;

	PMD_INIT_FUNC_TRACE();

	/* set adapter started */
	hw->adapter_stopped = 0;

	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);

	/* reinitialize adapter
	 * this calls reset and start
	 */
	status = atl_reset_hw(hw);
	if (status != 0)
		return -EIO;

	err = hw_atl_b0_hw_init(hw, dev->data->mac_addrs->addr_bytes);

	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);

	/* This can fail when allocating mbufs for descriptor rings */
	err = atl_rx_init(dev);
	if (err) {
		PMD_INIT_LOG(ERR, "Unable to initialize RX hardware");
		goto error;
	}

	PMD_INIT_LOG(DEBUG, "FW version: %u.%u.%u",
		hw->fw_ver_actual >> 24,
		(hw->fw_ver_actual >> 16) & 0xFF,
		hw->fw_ver_actual & 0xFFFF);
	PMD_INIT_LOG(DEBUG, "Driver version: %s", ATL_PMD_DRIVER_VERSION);

	err = atl_start_queues(dev);
	if (err < 0) {
		PMD_INIT_LOG(ERR, "Unable to start rxtx queues");
		goto error;
	}

	err = atl_dev_set_link_up(dev);

	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;

	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);

	return 0;

error:
	atl_stop_queues(dev);
	return -EIO;
}

/*
 * Stop device: disable rx and tx functions to allow for reconfiguring.
 */
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);
	hw->adapter_stopped = 1;

	atl_stop_queues(dev);

	/* Clear stored conf */
	dev->data->scattered_rx = 0;
	dev->data->lro = 0;

	/* Clear recorded link status */
	memset(&link, 0, sizeof(link));
	rte_eth_linkstatus_set(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);
	uint32_t link_speeds = dev->data->dev_conf.link_speeds;
	uint32_t speed_mask = 0;

	if (link_speeds == ETH_LINK_SPEED_AUTONEG) {
		speed_mask = hw->aq_nic_cfg->link_speed_msk;
	} else {
		if (link_speeds & ETH_LINK_SPEED_10G)
			speed_mask |= AQ_NIC_RATE_10G;
		if (link_speeds & ETH_LINK_SPEED_5G)
			speed_mask |= AQ_NIC_RATE_5G;
		if (link_speeds & ETH_LINK_SPEED_1G)
			speed_mask |= AQ_NIC_RATE_1G;
		if (link_speeds & ETH_LINK_SPEED_2_5G)
			speed_mask |=  AQ_NIC_RATE_2G5;
		if (link_speeds & ETH_LINK_SPEED_100M)
			speed_mask |= AQ_NIC_RATE_100M;
	}

	return hw->aq_fw_ops->set_link_speed(hw, speed_mask);
}

/*
 * 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);
}

/*
 * Reset and stop device.
 */
static void
atl_dev_close(struct rte_eth_dev *dev)
{
	PMD_INIT_FUNC_TRACE();

	atl_dev_stop(dev);

	atl_free_queues(dev);
}

static int
atl_dev_reset(struct rte_eth_dev *dev)
{
	int ret;

	ret = eth_atl_dev_uninit(dev);
	if (ret)
		return ret;

	ret = eth_atl_dev_init(dev);

	return ret;
}


static int
atl_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
{
	struct atl_adapter *adapter = ATL_DEV_TO_ADAPTER(dev);
	struct aq_hw_s *hw = &adapter->hw;
	struct atl_sw_stats *swstats = &adapter->sw_stats;
	unsigned int i;

	hw->aq_fw_ops->update_stats(hw);

	/* Fill out the rte_eth_stats statistics structure */
	stats->ipackets = hw->curr_stats.dma_pkt_rc;
	stats->ibytes = hw->curr_stats.dma_oct_rc;
	stats->imissed = hw->curr_stats.dpc;
	stats->ierrors = hw->curr_stats.erpt;

	stats->opackets = hw->curr_stats.dma_pkt_tc;
	stats->obytes = hw->curr_stats.dma_oct_tc;
	stats->oerrors = 0;

	stats->rx_nombuf = swstats->rx_nombuf;

	for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS; i++) {
		stats->q_ipackets[i] = swstats->q_ipackets[i];
		stats->q_opackets[i] = swstats->q_opackets[i];
		stats->q_ibytes[i] = swstats->q_ibytes[i];
		stats->q_obytes[i] = swstats->q_obytes[i];
		stats->q_errors[i] = swstats->q_errors[i];
	}
	return 0;
}

static void
atl_dev_stats_reset(struct rte_eth_dev *dev)
{
	struct atl_adapter *adapter = ATL_DEV_TO_ADAPTER(dev);
	struct aq_hw_s *hw = &adapter->hw;

	hw->aq_fw_ops->update_stats(hw);

	/* Reset software totals */
	memset(&hw->curr_stats, 0, sizeof(hw->curr_stats));

	memset(&adapter->sw_stats, 0, sizeof(adapter->sw_stats));
}

static int
atl_dev_xstats_get_names(struct rte_eth_dev *dev __rte_unused,
			 struct rte_eth_xstat_name *xstats_names,
			 unsigned int size)
{
	unsigned int i;

	if (!xstats_names)
		return RTE_DIM(atl_xstats_tbl);

	for (i = 0; i < size && i < RTE_DIM(atl_xstats_tbl); i++)
		snprintf(xstats_names[i].name, RTE_ETH_XSTATS_NAME_SIZE, "%s",
			atl_xstats_tbl[i].name);

	return i;
}

static int
atl_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *stats,
		   unsigned int n)
{
	struct atl_adapter *adapter = ATL_DEV_TO_ADAPTER(dev);
	struct aq_hw_s *hw = &adapter->hw;
	unsigned int i;

	if (!stats)
		return 0;

	for (i = 0; i < n && i < RTE_DIM(atl_xstats_tbl); i++) {
		stats[i].id = i;
		stats[i].value = *(u64 *)((uint8_t *)&hw->curr_stats +
					atl_xstats_tbl[i].offset);
	}

	return i;
}

static int
atl_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	uint32_t fw_ver = 0;
	unsigned int ret = 0;

	ret = hw_atl_utils_get_fw_version(hw, &fw_ver);
	if (ret)
		return -EIO;

	ret = snprintf(fw_version, fw_size, "%u.%u.%u", fw_ver >> 24,
		       (fw_ver >> 16) & 0xFFU, fw_ver & 0xFFFFU);

	ret += 1; /* add string null-terminator */

	if (fw_size < ret)
		return ret;

	return 0;
}

static void
atl_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
{
	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);

	dev_info->max_rx_queues = AQ_HW_MAX_RX_QUEUES;
	dev_info->max_tx_queues = AQ_HW_MAX_TX_QUEUES;

	dev_info->min_rx_bufsize = 1024;
	dev_info->max_rx_pktlen = HW_ATL_B0_MTU_JUMBO;
	dev_info->max_mac_addrs = HW_ATL_B0_MAC_MAX;
	dev_info->max_vfs = pci_dev->max_vfs;

	dev_info->max_hash_mac_addrs = 0;
	dev_info->max_vmdq_pools = 0;
	dev_info->vmdq_queue_num = 0;

	dev_info->rx_offload_capa = ATL_RX_OFFLOADS;

	dev_info->tx_offload_capa = ATL_TX_OFFLOADS;


	dev_info->default_rxconf = (struct rte_eth_rxconf) {
		.rx_free_thresh = ATL_DEFAULT_RX_FREE_THRESH,
	};

	dev_info->default_txconf = (struct rte_eth_txconf) {
		.tx_free_thresh = ATL_DEFAULT_TX_FREE_THRESH,
	};

	dev_info->rx_desc_lim = rx_desc_lim;
	dev_info->tx_desc_lim = tx_desc_lim;

	dev_info->hash_key_size = HW_ATL_B0_RSS_HASHKEY_BITS / 8;
	dev_info->reta_size = HW_ATL_B0_RSS_REDIRECTION_MAX;
	dev_info->flow_type_rss_offloads = ATL_RSS_OFFLOAD_ALL;

	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 *
atl_dev_supported_ptypes_get(struct rte_eth_dev *dev)
{
	static const uint32_t ptypes[] = {
		RTE_PTYPE_L2_ETHER,
		RTE_PTYPE_L2_ETHER_ARP,
		RTE_PTYPE_L2_ETHER_VLAN,
		RTE_PTYPE_L3_IPV4,
		RTE_PTYPE_L3_IPV6,
		RTE_PTYPE_L4_TCP,
		RTE_PTYPE_L4_UDP,
		RTE_PTYPE_L4_SCTP,
		RTE_PTYPE_L4_ICMP,
		RTE_PTYPE_UNKNOWN
	};

	if (dev->rx_pkt_burst == atl_recv_pkts)
		return ptypes;

	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_eth_linkstatus_get(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_eth_linkstatus_set(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_eth_linkstatus_set(dev, &link);

	if (link.link_status == old.link_status)
		return -1;

	return 0;
}

static void
atl_dev_promiscuous_enable(struct rte_eth_dev *dev)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);

	hw_atl_rpfl2promiscuous_mode_en_set(hw, true);
}

static void
atl_dev_promiscuous_disable(struct rte_eth_dev *dev)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);

	hw_atl_rpfl2promiscuous_mode_en_set(hw, false);
}

static void
atl_dev_allmulticast_enable(struct rte_eth_dev *dev)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);

	hw_atl_rpfl2_accept_all_mc_packets_set(hw, true);
}

static void
atl_dev_allmulticast_disable(struct rte_eth_dev *dev)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);

	if (dev->data->promiscuous == 1)
		return; /* must remain in all_multicast mode */

	hw_atl_rpfl2_accept_all_mc_packets_set(hw, false);
}

/**
 * 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_eth_linkstatus_get(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);
}

#define SFP_EEPROM_SIZE 0xff

static int
atl_dev_get_eeprom_length(struct rte_eth_dev *dev __rte_unused)
{
	return SFP_EEPROM_SIZE;
}

int atl_dev_get_eeprom(struct rte_eth_dev *dev,
		       struct rte_dev_eeprom_info *eeprom)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	uint32_t dev_addr = SMBUS_DEVICE_ID;

	if (hw->aq_fw_ops->get_eeprom == NULL)
		return -ENOTSUP;

	if (eeprom->length + eeprom->offset > SFP_EEPROM_SIZE ||
	    eeprom->data == NULL)
		return -EINVAL;

	if (eeprom->magic)
		dev_addr = eeprom->magic;

	return hw->aq_fw_ops->get_eeprom(hw, dev_addr, eeprom->data,
					 eeprom->length, eeprom->offset);
}

int atl_dev_set_eeprom(struct rte_eth_dev *dev,
		       struct rte_dev_eeprom_info *eeprom)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	uint32_t dev_addr = SMBUS_DEVICE_ID;

	if (hw->aq_fw_ops->set_eeprom == NULL)
		return -ENOTSUP;

	if (eeprom->length != SFP_EEPROM_SIZE || eeprom->data == NULL)
		return -EINVAL;

	if (eeprom->magic)
		dev_addr = eeprom->magic;

	return hw->aq_fw_ops->set_eeprom(hw, dev_addr,
					 eeprom->data, eeprom->length);
}

static int
atl_dev_get_regs(struct rte_eth_dev *dev, struct rte_dev_reg_info *regs)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	u32 mif_id;
	int err;

	if (regs->data == NULL) {
		regs->length = hw_atl_utils_hw_get_reg_length();
		regs->width = sizeof(u32);
		return 0;
	}

	/* Only full register dump is supported */
	if (regs->length && regs->length != hw_atl_utils_hw_get_reg_length())
		return -ENOTSUP;

	err = hw_atl_utils_hw_get_regs(hw, regs->data);

	/* Device version */
	mif_id = hw_atl_reg_glb_mif_id_get(hw);
	regs->version = mif_id & 0xFFU;

	return err;
}

static int
atl_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);

	if (hw->aq_nic_cfg->flow_control == AQ_NIC_FC_OFF)
		fc_conf->mode = RTE_FC_NONE;
	else if (hw->aq_nic_cfg->flow_control & (AQ_NIC_FC_RX | AQ_NIC_FC_TX))
		fc_conf->mode = RTE_FC_FULL;
	else if (hw->aq_nic_cfg->flow_control & AQ_NIC_FC_RX)
		fc_conf->mode = RTE_FC_RX_PAUSE;
	else if (hw->aq_nic_cfg->flow_control & AQ_NIC_FC_RX)
		fc_conf->mode = RTE_FC_TX_PAUSE;

	return 0;
}

static int
atl_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	uint32_t old_flow_control = hw->aq_nic_cfg->flow_control;


	if (hw->aq_fw_ops->set_flow_control == NULL)
		return -ENOTSUP;

	if (fc_conf->mode == RTE_FC_NONE)
		hw->aq_nic_cfg->flow_control = AQ_NIC_FC_OFF;
	else if (fc_conf->mode == RTE_FC_RX_PAUSE)
		hw->aq_nic_cfg->flow_control = AQ_NIC_FC_RX;
	else if (fc_conf->mode == RTE_FC_TX_PAUSE)
		hw->aq_nic_cfg->flow_control = AQ_NIC_FC_TX;
	else if (fc_conf->mode == RTE_FC_FULL)
		hw->aq_nic_cfg->flow_control = (AQ_NIC_FC_RX | AQ_NIC_FC_TX);

	if (old_flow_control != hw->aq_nic_cfg->flow_control)
		return hw->aq_fw_ops->set_flow_control(hw);

	return 0;
}

static int
atl_update_mac_addr(struct rte_eth_dev *dev, uint32_t index,
		    u8 *mac_addr, bool enable)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	unsigned int h = 0U;
	unsigned int l = 0U;
	int err;

	if (mac_addr) {
		h = (mac_addr[0] << 8) | (mac_addr[1]);
		l = (mac_addr[2] << 24) | (mac_addr[3] << 16) |
			(mac_addr[4] << 8) | mac_addr[5];
	}

	hw_atl_rpfl2_uc_flr_en_set(hw, 0U, index);
	hw_atl_rpfl2unicast_dest_addresslsw_set(hw, l, index);
	hw_atl_rpfl2unicast_dest_addressmsw_set(hw, h, index);

	if (enable)
		hw_atl_rpfl2_uc_flr_en_set(hw, 1U, index);

	err = aq_hw_err_from_flags(hw);

	return err;
}

static int
atl_add_mac_addr(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
			uint32_t index __rte_unused, uint32_t pool __rte_unused)
{
	if (is_zero_ether_addr(mac_addr)) {
		PMD_DRV_LOG(ERR, "Invalid Ethernet Address");
		return -EINVAL;
	}

	return atl_update_mac_addr(dev, index, (u8 *)mac_addr, true);
}

static void
atl_remove_mac_addr(struct rte_eth_dev *dev, uint32_t index)
{
	atl_update_mac_addr(dev, index, NULL, false);
}

static int
atl_set_default_mac_addr(struct rte_eth_dev *dev, struct ether_addr *addr)
{
	atl_remove_mac_addr(dev, 0);
	atl_add_mac_addr(dev, addr, 0, 0);
	return 0;
}

static int
atl_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
{
	struct rte_eth_dev_info dev_info;
	uint32_t frame_size = mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;

	atl_dev_info_get(dev, &dev_info);

	if ((mtu < ETHER_MIN_MTU) || (frame_size > dev_info.max_rx_pktlen))
		return -EINVAL;

	/* update max frame size */
	dev->data->dev_conf.rxmode.max_rx_pkt_len = frame_size;

	return 0;
}

static int
atl_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
{
	struct aq_hw_cfg_s *cfg =
		ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	int err = 0;
	int i = 0;

	PMD_INIT_FUNC_TRACE();

	for (i = 0; i < HW_ATL_B0_MAX_VLAN_IDS; i++) {
		if (cfg->vlan_filter[i] == vlan_id) {
			if (!on) {
				/* Disable VLAN filter. */
				hw_atl_rpf_vlan_flr_en_set(hw, 0U, i);

				/* Clear VLAN filter entry */
				cfg->vlan_filter[i] = 0;
			}
			break;
		}
	}

	/* VLAN_ID was not found. So, nothing to delete. */
	if (i == HW_ATL_B0_MAX_VLAN_IDS && !on)
		goto exit;

	/* VLAN_ID already exist, or already removed above. Nothing to do. */
	if (i != HW_ATL_B0_MAX_VLAN_IDS)
		goto exit;

	/* Try to found free VLAN filter to add new VLAN_ID */
	for (i = 0; i < HW_ATL_B0_MAX_VLAN_IDS; i++) {
		if (cfg->vlan_filter[i] == 0)
			break;
	}

	if (i == HW_ATL_B0_MAX_VLAN_IDS) {
		/* We have no free VLAN filter to add new VLAN_ID*/
		err = -ENOMEM;
		goto exit;
	}

	cfg->vlan_filter[i] = vlan_id;
	hw_atl_rpf_vlan_flr_act_set(hw, 1U, i);
	hw_atl_rpf_vlan_id_flr_set(hw, vlan_id, i);
	hw_atl_rpf_vlan_flr_en_set(hw, 1U, i);

exit:
	/* Enable VLAN promisc mode if vlan_filter empty  */
	for (i = 0; i < HW_ATL_B0_MAX_VLAN_IDS; i++) {
		if (cfg->vlan_filter[i] != 0)
			break;
	}

	hw_atl_rpf_vlan_prom_mode_en_set(hw, i == HW_ATL_B0_MAX_VLAN_IDS);

	return err;
}

static int
atl_enable_vlan_filter(struct rte_eth_dev *dev, int en)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	struct aq_hw_cfg_s *cfg =
		ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);
	int i;

	PMD_INIT_FUNC_TRACE();

	for (i = 0; i < HW_ATL_B0_MAX_VLAN_IDS; i++) {
		if (cfg->vlan_filter[i])
			hw_atl_rpf_vlan_flr_en_set(hw, en, i);
	}
	return 0;
}

static int
atl_vlan_offload_set(struct rte_eth_dev *dev, int mask)
{
	struct aq_hw_cfg_s *cfg =
		ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	int ret = 0;
	int i;

	PMD_INIT_FUNC_TRACE();

	ret = atl_enable_vlan_filter(dev, mask & ETH_VLAN_FILTER_MASK);

	cfg->vlan_strip = !!(mask & ETH_VLAN_STRIP_MASK);

	for (i = 0; i < dev->data->nb_rx_queues; i++)
		hw_atl_rpo_rx_desc_vlan_stripping_set(hw, cfg->vlan_strip, i);

	if (mask & ETH_VLAN_EXTEND_MASK)
		ret = -ENOTSUP;

	return ret;
}

static int
atl_vlan_tpid_set(struct rte_eth_dev *dev, enum rte_vlan_type vlan_type,
		  uint16_t tpid)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	int err = 0;

	PMD_INIT_FUNC_TRACE();

	switch (vlan_type) {
	case ETH_VLAN_TYPE_INNER:
		hw_atl_rpf_vlan_inner_etht_set(hw, tpid);
		break;
	case ETH_VLAN_TYPE_OUTER:
		hw_atl_rpf_vlan_outer_etht_set(hw, tpid);
		break;
	default:
		PMD_DRV_LOG(ERR, "Unsupported VLAN type");
		err = -ENOTSUP;
	}

	return err;
}

static void
atl_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue_id, int on)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);

	PMD_INIT_FUNC_TRACE();

	if (queue_id > dev->data->nb_rx_queues) {
		PMD_DRV_LOG(ERR, "Invalid queue id");
		return;
	}

	hw_atl_rpo_rx_desc_vlan_stripping_set(hw, on, queue_id);
}

static int
atl_dev_set_mc_addr_list(struct rte_eth_dev *dev,
			  struct ether_addr *mc_addr_set,
			  uint32_t nb_mc_addr)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	u32 i;

	if (nb_mc_addr > AQ_HW_MULTICAST_ADDRESS_MAX - HW_ATL_B0_MAC_MIN)
		return -EINVAL;

	/* Update whole uc filters table */
	for (i = 0; i < AQ_HW_MULTICAST_ADDRESS_MAX - HW_ATL_B0_MAC_MIN; i++) {
		u8 *mac_addr = NULL;
		u32 l = 0, h = 0;

		if (i < nb_mc_addr) {
			mac_addr = mc_addr_set[i].addr_bytes;
			l = (mac_addr[2] << 24) | (mac_addr[3] << 16) |
				(mac_addr[4] << 8) | mac_addr[5];
			h = (mac_addr[0] << 8) | mac_addr[1];
		}

		hw_atl_rpfl2_uc_flr_en_set(hw, 0U, HW_ATL_B0_MAC_MIN + i);
		hw_atl_rpfl2unicast_dest_addresslsw_set(hw, l,
							HW_ATL_B0_MAC_MIN + i);
		hw_atl_rpfl2unicast_dest_addressmsw_set(hw, h,
							HW_ATL_B0_MAC_MIN + i);
		hw_atl_rpfl2_uc_flr_en_set(hw, !!mac_addr,
					   HW_ATL_B0_MAC_MIN + i);
	}

	return 0;
}

static int
atl_reta_update(struct rte_eth_dev *dev,
		   struct rte_eth_rss_reta_entry64 *reta_conf,
		   uint16_t reta_size)
{
	int i;
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	struct aq_hw_cfg_s *cf = ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);

	for (i = 0; i < reta_size && i < cf->aq_rss.indirection_table_size; i++)
		cf->aq_rss.indirection_table[i] = min(reta_conf->reta[i],
					dev->data->nb_rx_queues - 1);

	hw_atl_b0_hw_rss_set(hw, &cf->aq_rss);
	return 0;
}

static int
atl_reta_query(struct rte_eth_dev *dev,
		    struct rte_eth_rss_reta_entry64 *reta_conf,
		    uint16_t reta_size)
{
	int i;
	struct aq_hw_cfg_s *cf = ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);

	for (i = 0; i < reta_size && i < cf->aq_rss.indirection_table_size; i++)
		reta_conf->reta[i] = cf->aq_rss.indirection_table[i];
	reta_conf->mask = ~0U;
	return 0;
}

static int
atl_rss_hash_update(struct rte_eth_dev *dev,
				 struct rte_eth_rss_conf *rss_conf)
{
	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	struct aq_hw_cfg_s *cfg =
		ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);
	static u8 def_rss_key[40] = {
		0x1e, 0xad, 0x71, 0x87, 0x65, 0xfc, 0x26, 0x7d,
		0x0d, 0x45, 0x67, 0x74, 0xcd, 0x06, 0x1a, 0x18,
		0xb6, 0xc1, 0xf0, 0xc7, 0xbb, 0x18, 0xbe, 0xf8,
		0x19, 0x13, 0x4b, 0xa9, 0xd0, 0x3e, 0xfe, 0x70,
		0x25, 0x03, 0xab, 0x50, 0x6a, 0x8b, 0x82, 0x0c
	};

	cfg->is_rss = !!rss_conf->rss_hf;
	if (rss_conf->rss_key) {
		memcpy(cfg->aq_rss.hash_secret_key, rss_conf->rss_key,
		       rss_conf->rss_key_len);
		cfg->aq_rss.hash_secret_key_size = rss_conf->rss_key_len;
	} else {
		memcpy(cfg->aq_rss.hash_secret_key, def_rss_key,
		       sizeof(def_rss_key));
		cfg->aq_rss.hash_secret_key_size = sizeof(def_rss_key);
	}

	hw_atl_b0_hw_rss_set(hw, &cfg->aq_rss);
	hw_atl_b0_hw_rss_hash_set(hw, &cfg->aq_rss);
	return 0;
}

static int
atl_rss_hash_conf_get(struct rte_eth_dev *dev,
				 struct rte_eth_rss_conf *rss_conf)
{
	struct aq_hw_cfg_s *cfg =
		ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);

	rss_conf->rss_hf = cfg->is_rss ? ATL_RSS_OFFLOAD_ALL : 0;
	if (rss_conf->rss_key) {
		rss_conf->rss_key_len = cfg->aq_rss.hash_secret_key_size;
		memcpy(rss_conf->rss_key, cfg->aq_rss.hash_secret_key,
		       rss_conf->rss_key_len);
	}

	return 0;
}

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");

RTE_INIT(atl_init_log)
{
	atl_logtype_init = rte_log_register("pmd.net.atlantic.init");
	if (atl_logtype_init >= 0)
		rte_log_set_level(atl_logtype_init, RTE_LOG_NOTICE);
	atl_logtype_driver = rte_log_register("pmd.net.atlantic.driver");
	if (atl_logtype_driver >= 0)
		rte_log_set_level(atl_logtype_driver, RTE_LOG_NOTICE);
}