/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2010-2017 Intel Corporation
 */
#include <stdlib.h>
#include <stdbool.h>
#include <netinet/in.h>

#include <rte_mbuf.h>
#include <rte_malloc.h>
#include <ethdev_driver.h>
#include <ethdev_vdev.h>
#include <rte_tcp.h>
#include <rte_udp.h>
#include <rte_ip.h>
#include <rte_ip_frag.h>
#include <rte_devargs.h>
#include <rte_kvargs.h>
#include <rte_bus_vdev.h>
#include <rte_alarm.h>
#include <rte_cycles.h>
#include <rte_string_fns.h>

#include "rte_eth_bond.h"
#include "eth_bond_private.h"
#include "eth_bond_8023ad_private.h"

#define REORDER_PERIOD_MS 10
#define DEFAULT_POLLING_INTERVAL_10_MS (10)
#define BOND_MAX_MAC_ADDRS 16

#define HASH_L4_PORTS(h) ((h)->src_port ^ (h)->dst_port)

/* Table for statistics in mode 5 TLB */
static uint64_t tlb_last_obytets[RTE_MAX_ETHPORTS];

static inline size_t
get_vlan_offset(struct rte_ether_hdr *eth_hdr, uint16_t *proto)
{
        size_t vlan_offset = 0;

        if (rte_cpu_to_be_16(RTE_ETHER_TYPE_VLAN) == *proto ||
                rte_cpu_to_be_16(RTE_ETHER_TYPE_QINQ) == *proto) {
                struct rte_vlan_hdr *vlan_hdr =
                        (struct rte_vlan_hdr *)(eth_hdr + 1);

                vlan_offset = sizeof(struct rte_vlan_hdr);
                *proto = vlan_hdr->eth_proto;

                if (rte_cpu_to_be_16(RTE_ETHER_TYPE_VLAN) == *proto) {
                        vlan_hdr = vlan_hdr + 1;
                        *proto = vlan_hdr->eth_proto;
                        vlan_offset += sizeof(struct rte_vlan_hdr);
                }
        }
        return vlan_offset;
}

static uint16_t
bond_ethdev_rx_burst(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
{
        struct bond_dev_private *internals;

        uint16_t num_rx_total = 0;
        uint16_t slave_count;
        uint16_t active_slave;
        int i;

        /* Cast to structure, containing bonded device's port id and queue id */
        struct bond_rx_queue *bd_rx_q = (struct bond_rx_queue *)queue;
        internals = bd_rx_q->dev_private;
        slave_count = internals->active_slave_count;
        active_slave = bd_rx_q->active_slave;

        for (i = 0; i < slave_count && nb_pkts; i++) {
                uint16_t num_rx_slave;

                /* Offset of pointer to *bufs increases as packets are received
                 * from other slaves */
                num_rx_slave =
                        rte_eth_rx_burst(internals->active_slaves[active_slave],
                                         bd_rx_q->queue_id,
                                         bufs + num_rx_total, nb_pkts);
                num_rx_total += num_rx_slave;
                nb_pkts -= num_rx_slave;
                if (++active_slave == slave_count)
                        active_slave = 0;
        }

        if (++bd_rx_q->active_slave >= slave_count)
                bd_rx_q->active_slave = 0;
        return num_rx_total;
}

static uint16_t
bond_ethdev_rx_burst_active_backup(void *queue, struct rte_mbuf **bufs,
                uint16_t nb_pkts)
{
        struct bond_dev_private *internals;

        /* Cast to structure, containing bonded device's port id and queue id */
        struct bond_rx_queue *bd_rx_q = (struct bond_rx_queue *)queue;

        internals = bd_rx_q->dev_private;

        return rte_eth_rx_burst(internals->current_primary_port,
                        bd_rx_q->queue_id, bufs, nb_pkts);
}

static inline uint8_t
is_lacp_packets(uint16_t ethertype, uint8_t subtype, struct rte_mbuf *mbuf)
{
        const uint16_t ether_type_slow_be =
                rte_be_to_cpu_16(RTE_ETHER_TYPE_SLOW);

        return !((mbuf->ol_flags & RTE_MBUF_F_RX_VLAN) ? mbuf->vlan_tci : 0) &&
                (ethertype == ether_type_slow_be &&
                (subtype == SLOW_SUBTYPE_MARKER || subtype == SLOW_SUBTYPE_LACP));
}

/*****************************************************************************
 * Flow director's setup for mode 4 optimization
 */

static struct rte_flow_item_eth flow_item_eth_type_8023ad = {
        .dst.addr_bytes = { 0 },
        .src.addr_bytes = { 0 },
        .type = RTE_BE16(RTE_ETHER_TYPE_SLOW),
};

static struct rte_flow_item_eth flow_item_eth_mask_type_8023ad = {
        .dst.addr_bytes = { 0 },
        .src.addr_bytes = { 0 },
        .type = 0xFFFF,
};

static struct rte_flow_item flow_item_8023ad[] = {
        {
                .type = RTE_FLOW_ITEM_TYPE_ETH,
                .spec = &flow_item_eth_type_8023ad,
                .last = NULL,
                .mask = &flow_item_eth_mask_type_8023ad,
        },
        {
                .type = RTE_FLOW_ITEM_TYPE_END,
                .spec = NULL,
                .last = NULL,
                .mask = NULL,
        }
};

const struct rte_flow_attr flow_attr_8023ad = {
        .group = 0,
        .priority = 0,
        .ingress = 1,
        .egress = 0,
        .reserved = 0,
};

int
bond_ethdev_8023ad_flow_verify(struct rte_eth_dev *bond_dev,
                uint16_t slave_port) {
        struct rte_eth_dev_info slave_info;
        struct rte_flow_error error;
        struct bond_dev_private *internals = bond_dev->data->dev_private;

        const struct rte_flow_action_queue lacp_queue_conf = {
                .index = 0,
        };

        const struct rte_flow_action actions[] = {
                {
                        .type = RTE_FLOW_ACTION_TYPE_QUEUE,
                        .conf = &lacp_queue_conf
                },
                {
                        .type = RTE_FLOW_ACTION_TYPE_END,
                }
        };

        int ret = rte_flow_validate(slave_port, &flow_attr_8023ad,
                        flow_item_8023ad, actions, &error);
        if (ret < 0) {
                RTE_BOND_LOG(ERR, "%s: %s (slave_port=%d queue_id=%d)",
                                __func__, error.message, slave_port,
                                internals->mode4.dedicated_queues.rx_qid);
                return -1;
        }

        ret = rte_eth_dev_info_get(slave_port, &slave_info);
        if (ret != 0) {
                RTE_BOND_LOG(ERR,
                        "%s: Error during getting device (port %u) info: %s\n",
                        __func__, slave_port, strerror(-ret));

                return ret;
        }

        if (slave_info.max_rx_queues < bond_dev->data->nb_rx_queues ||
                        slave_info.max_tx_queues < bond_dev->data->nb_tx_queues) {
                RTE_BOND_LOG(ERR,
                        "%s: Slave %d capabilities doesn't allow to allocate additional queues",
                        __func__, slave_port);
                return -1;
        }

        return 0;
}

int
bond_8023ad_slow_pkt_hw_filter_supported(uint16_t port_id) {
        struct rte_eth_dev *bond_dev = &rte_eth_devices[port_id];
        struct bond_dev_private *internals = bond_dev->data->dev_private;
        struct rte_eth_dev_info bond_info;
        uint16_t idx;
        int ret;

        /* Verify if all slaves in bonding supports flow director and */
        if (internals->slave_count > 0) {
                ret = rte_eth_dev_info_get(bond_dev->data->port_id, &bond_info);
                if (ret != 0) {
                        RTE_BOND_LOG(ERR,
                                "%s: Error during getting device (port %u) info: %s\n",
                                __func__, bond_dev->data->port_id,
                                strerror(-ret));

                        return ret;
                }

                internals->mode4.dedicated_queues.rx_qid = bond_info.nb_rx_queues;
                internals->mode4.dedicated_queues.tx_qid = bond_info.nb_tx_queues;

                for (idx = 0; idx < internals->slave_count; idx++) {
                        if (bond_ethdev_8023ad_flow_verify(bond_dev,
                                        internals->slaves[idx].port_id) != 0)
                                return -1;
                }
        }

        return 0;
}

int
bond_ethdev_8023ad_flow_set(struct rte_eth_dev *bond_dev, uint16_t slave_port) {

        struct rte_flow_error error;
        struct bond_dev_private *internals = bond_dev->data->dev_private;
        struct rte_flow_action_queue lacp_queue_conf = {
                .index = internals->mode4.dedicated_queues.rx_qid,
        };

        const struct rte_flow_action actions[] = {
                {
                        .type = RTE_FLOW_ACTION_TYPE_QUEUE,
                        .conf = &lacp_queue_conf
                },
                {
                        .type = RTE_FLOW_ACTION_TYPE_END,
                }
        };

        internals->mode4.dedicated_queues.flow[slave_port] = rte_flow_create(slave_port,
                        &flow_attr_8023ad, flow_item_8023ad, actions, &error);
        if (internals->mode4.dedicated_queues.flow[slave_port] == NULL) {
                RTE_BOND_LOG(ERR, "bond_ethdev_8023ad_flow_set: %s "
                                "(slave_port=%d queue_id=%d)",
                                error.message, slave_port,
                                internals->mode4.dedicated_queues.rx_qid);
                return -1;
        }

        return 0;
}

static inline uint16_t
rx_burst_8023ad(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts,
                bool dedicated_rxq)
{
        /* Cast to structure, containing bonded device's port id and queue id */
        struct bond_rx_queue *bd_rx_q = (struct bond_rx_queue *)queue;
        struct bond_dev_private *internals = bd_rx_q->dev_private;
        struct rte_eth_dev *bonded_eth_dev =
                                        &rte_eth_devices[internals->port_id];
        struct rte_ether_addr *bond_mac = bonded_eth_dev->data->mac_addrs;
        struct rte_ether_hdr *hdr;

        const uint16_t ether_type_slow_be =
                rte_be_to_cpu_16(RTE_ETHER_TYPE_SLOW);
        uint16_t num_rx_total = 0;      /* Total number of received packets */
        uint16_t slaves[RTE_MAX_ETHPORTS];
        uint16_t slave_count, idx;

        uint8_t collecting;  /* current slave collecting status */
        const uint8_t promisc = rte_eth_promiscuous_get(internals->port_id);
        const uint8_t allmulti = rte_eth_allmulticast_get(internals->port_id);
        uint8_t subtype;
        uint16_t i;
        uint16_t j;
        uint16_t k;

        /* Copy slave list to protect against slave up/down changes during tx
         * bursting */
        slave_count = internals->active_slave_count;
        memcpy(slaves, internals->active_slaves,
                        sizeof(internals->active_slaves[0]) * slave_count);

        idx = bd_rx_q->active_slave;
        if (idx >= slave_count) {
                bd_rx_q->active_slave = 0;
                idx = 0;
        }
        for (i = 0; i < slave_count && num_rx_total < nb_pkts; i++) {
                j = num_rx_total;
                collecting = ACTOR_STATE(&bond_mode_8023ad_ports[slaves[idx]],
                                         COLLECTING);

                /* Read packets from this slave */
                num_rx_total += rte_eth_rx_burst(slaves[idx], bd_rx_q->queue_id,
                                &bufs[num_rx_total], nb_pkts - num_rx_total);

                for (k = j; k < 2 && k < num_rx_total; k++)
                        rte_prefetch0(rte_pktmbuf_mtod(bufs[k], void *));

                /* Handle slow protocol packets. */
                while (j < num_rx_total) {
                        if (j + 3 < num_rx_total)
                                rte_prefetch0(rte_pktmbuf_mtod(bufs[j + 3], void *));

                        hdr = rte_pktmbuf_mtod(bufs[j], struct rte_ether_hdr *);
                        subtype = ((struct slow_protocol_frame *)hdr)->slow_protocol.subtype;

                        /* Remove packet from array if:
                         * - it is slow packet but no dedicated rxq is present,
                         * - slave is not in collecting state,
                         * - bonding interface is not in promiscuous mode:
                         *   - packet is unicast and address does not match,
                         *   - packet is multicast and bonding interface
                         *     is not in allmulti,
                         */
                        if (unlikely(
                                (!dedicated_rxq &&
                                 is_lacp_packets(hdr->ether_type, subtype,
                                                 bufs[j])) ||
                                !collecting ||
                                (!promisc &&
                                 ((rte_is_unicast_ether_addr(&hdr->dst_addr) &&
                                   !rte_is_same_ether_addr(bond_mac,
                                                       &hdr->dst_addr)) ||
                                  (!allmulti &&
                                   rte_is_multicast_ether_addr(&hdr->dst_addr)))))) {

                                if (hdr->ether_type == ether_type_slow_be) {
                                        bond_mode_8023ad_handle_slow_pkt(
                                            internals, slaves[idx], bufs[j]);
                                } else
                                        rte_pktmbuf_free(bufs[j]);

                                /* Packet is managed by mode 4 or dropped, shift the array */
                                num_rx_total--;
                                if (j < num_rx_total) {
                                        memmove(&bufs[j], &bufs[j + 1], sizeof(bufs[0]) *
                                                (num_rx_total - j));
                                }
                        } else
                                j++;
                }
                if (unlikely(++idx == slave_count))
                        idx = 0;
        }

        if (++bd_rx_q->active_slave >= slave_count)
                bd_rx_q->active_slave = 0;

        return num_rx_total;
}

static uint16_t
bond_ethdev_rx_burst_8023ad(void *queue, struct rte_mbuf **bufs,
                uint16_t nb_pkts)
{
        return rx_burst_8023ad(queue, bufs, nb_pkts, false);
}

static uint16_t
bond_ethdev_rx_burst_8023ad_fast_queue(void *queue, struct rte_mbuf **bufs,
                uint16_t nb_pkts)
{
        return rx_burst_8023ad(queue, bufs, nb_pkts, true);
}

#if defined(RTE_LIBRTE_BOND_DEBUG_ALB) || defined(RTE_LIBRTE_BOND_DEBUG_ALB_L1)
uint32_t burstnumberRX;
uint32_t burstnumberTX;

#ifdef RTE_LIBRTE_BOND_DEBUG_ALB

static void
arp_op_name(uint16_t arp_op, char *buf, size_t buf_len)
{
        switch (arp_op) {
        case RTE_ARP_OP_REQUEST:
                strlcpy(buf, "ARP Request", buf_len);
                return;
        case RTE_ARP_OP_REPLY:
                strlcpy(buf, "ARP Reply", buf_len);
                return;
        case RTE_ARP_OP_REVREQUEST:
                strlcpy(buf, "Reverse ARP Request", buf_len);
                return;
        case RTE_ARP_OP_REVREPLY:
                strlcpy(buf, "Reverse ARP Reply", buf_len);
                return;
        case RTE_ARP_OP_INVREQUEST:
                strlcpy(buf, "Peer Identify Request", buf_len);
                return;
        case RTE_ARP_OP_INVREPLY:
                strlcpy(buf, "Peer Identify Reply", buf_len);
                return;
        default:
                break;
        }
        strlcpy(buf, "Unknown", buf_len);
        return;
}
#endif
#define MaxIPv4String   16
static void
ipv4_addr_to_dot(uint32_t be_ipv4_addr, char *buf, uint8_t buf_size)
{
        uint32_t ipv4_addr;

        ipv4_addr = rte_be_to_cpu_32(be_ipv4_addr);
        snprintf(buf, buf_size, "%d.%d.%d.%d", (ipv4_addr >> 24) & 0xFF,
                (ipv4_addr >> 16) & 0xFF, (ipv4_addr >> 8) & 0xFF,
                ipv4_addr & 0xFF);
}

#define MAX_CLIENTS_NUMBER      128
uint8_t active_clients;
struct client_stats_t {
        uint16_t port;
        uint32_t ipv4_addr;
        uint32_t ipv4_rx_packets;
        uint32_t ipv4_tx_packets;
};
struct client_stats_t client_stats[MAX_CLIENTS_NUMBER];

static void
update_client_stats(uint32_t addr, uint16_t port, uint32_t *TXorRXindicator)
{
        int i = 0;

        for (; i < MAX_CLIENTS_NUMBER; i++)     {
                if ((client_stats[i].ipv4_addr == addr) && (client_stats[i].port == port))      {
                        /* Just update RX packets number for this client */
                        if (TXorRXindicator == &burstnumberRX)
                                client_stats[i].ipv4_rx_packets++;
                        else
                                client_stats[i].ipv4_tx_packets++;
                        return;
                }
        }
        /* We have a new client. Insert him to the table, and increment stats */
        if (TXorRXindicator == &burstnumberRX)
                client_stats[active_clients].ipv4_rx_packets++;
        else
                client_stats[active_clients].ipv4_tx_packets++;
        client_stats[active_clients].ipv4_addr = addr;
        client_stats[active_clients].port = port;
        active_clients++;

}

#ifdef RTE_LIBRTE_BOND_DEBUG_ALB
#define MODE6_DEBUG(info, src_ip, dst_ip, eth_h, arp_op, port, burstnumber) \
        rte_log(RTE_LOG_DEBUG, bond_logtype,                            \
                "%s port:%d SrcMAC:" RTE_ETHER_ADDR_PRT_FMT " SrcIP:%s " \
                "DstMAC:" RTE_ETHER_ADDR_PRT_FMT " DstIP:%s %s %d\n", \
                info,                                                   \
                port,                                                   \
                RTE_ETHER_ADDR_BYTES(&eth_h->src_addr),                  \
                src_ip,                                                 \
                RTE_ETHER_ADDR_BYTES(&eth_h->dst_addr),                  \
                dst_ip,                                                 \
                arp_op, ++burstnumber)
#endif

static void
mode6_debug(const char __rte_unused *info,
        struct rte_ether_hdr *eth_h, uint16_t port,
        uint32_t __rte_unused *burstnumber)
{
        struct rte_ipv4_hdr *ipv4_h;
#ifdef RTE_LIBRTE_BOND_DEBUG_ALB
        struct rte_arp_hdr *arp_h;
        char dst_ip[16];
        char ArpOp[24];
        char buf[16];
#endif
        char src_ip[16];

        uint16_t ether_type = eth_h->ether_type;
        uint16_t offset = get_vlan_offset(eth_h, &ether_type);

#ifdef RTE_LIBRTE_BOND_DEBUG_ALB
        strlcpy(buf, info, 16);
#endif

        if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4)) {
                ipv4_h = (struct rte_ipv4_hdr *)((char *)(eth_h + 1) + offset);
                ipv4_addr_to_dot(ipv4_h->src_addr, src_ip, MaxIPv4String);
#ifdef RTE_LIBRTE_BOND_DEBUG_ALB
                ipv4_addr_to_dot(ipv4_h->dst_addr, dst_ip, MaxIPv4String);
                MODE6_DEBUG(buf, src_ip, dst_ip, eth_h, "", port, *burstnumber);
#endif
                update_client_stats(ipv4_h->src_addr, port, burstnumber);
        }
#ifdef RTE_LIBRTE_BOND_DEBUG_ALB
        else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_ARP)) {
                arp_h = (struct rte_arp_hdr *)((char *)(eth_h + 1) + offset);
                ipv4_addr_to_dot(arp_h->arp_data.arp_sip, src_ip, MaxIPv4String);
                ipv4_addr_to_dot(arp_h->arp_data.arp_tip, dst_ip, MaxIPv4String);
                arp_op_name(rte_be_to_cpu_16(arp_h->arp_opcode),
                                ArpOp, sizeof(ArpOp));
                MODE6_DEBUG(buf, src_ip, dst_ip, eth_h, ArpOp, port, *burstnumber);
        }
#endif
}
#endif

static uint16_t
bond_ethdev_rx_burst_alb(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
{
        struct bond_rx_queue *bd_rx_q = (struct bond_rx_queue *)queue;
        struct bond_dev_private *internals = bd_rx_q->dev_private;
        struct rte_ether_hdr *eth_h;
        uint16_t ether_type, offset;
        uint16_t nb_recv_pkts;
        int i;

        nb_recv_pkts = bond_ethdev_rx_burst(queue, bufs, nb_pkts);

        for (i = 0; i < nb_recv_pkts; i++) {
                eth_h = rte_pktmbuf_mtod(bufs[i], struct rte_ether_hdr *);
                ether_type = eth_h->ether_type;
                offset = get_vlan_offset(eth_h, &ether_type);

                if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_ARP)) {
#if defined(RTE_LIBRTE_BOND_DEBUG_ALB) || defined(RTE_LIBRTE_BOND_DEBUG_ALB_L1)
                        mode6_debug("RX ARP:", eth_h, bufs[i]->port, &burstnumberRX);
#endif
                        bond_mode_alb_arp_recv(eth_h, offset, internals);
                }
#if defined(RTE_LIBRTE_BOND_DEBUG_ALB) || defined(RTE_LIBRTE_BOND_DEBUG_ALB_L1)
                else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4))
                        mode6_debug("RX IPv4:", eth_h, bufs[i]->port, &burstnumberRX);
#endif
        }

        return nb_recv_pkts;
}

static uint16_t
bond_ethdev_tx_burst_round_robin(void *queue, struct rte_mbuf **bufs,
                uint16_t nb_pkts)
{
        struct bond_dev_private *internals;
        struct bond_tx_queue *bd_tx_q;

        struct rte_mbuf *slave_bufs[RTE_MAX_ETHPORTS][nb_pkts];
        uint16_t slave_nb_pkts[RTE_MAX_ETHPORTS] = { 0 };

        uint16_t num_of_slaves;
        uint16_t slaves[RTE_MAX_ETHPORTS];

        uint16_t num_tx_total = 0, num_tx_slave;

        static int slave_idx = 0;
        int i, cslave_idx = 0, tx_fail_total = 0;

        bd_tx_q = (struct bond_tx_queue *)queue;
        internals = bd_tx_q->dev_private;

        /* Copy slave list to protect against slave up/down changes during tx
         * bursting */
        num_of_slaves = internals->active_slave_count;
        memcpy(slaves, internals->active_slaves,
                        sizeof(internals->active_slaves[0]) * num_of_slaves);

        if (num_of_slaves < 1)
                return num_tx_total;

        /* Populate slaves mbuf with which packets are to be sent on it  */
        for (i = 0; i < nb_pkts; i++) {
                cslave_idx = (slave_idx + i) % num_of_slaves;
                slave_bufs[cslave_idx][(slave_nb_pkts[cslave_idx])++] = bufs[i];
        }

        /* increment current slave index so the next call to tx burst starts on the
         * next slave */
        slave_idx = ++cslave_idx;

        /* Send packet burst on each slave device */
        for (i = 0; i < num_of_slaves; i++) {
                if (slave_nb_pkts[i] > 0) {
                        num_tx_slave = rte_eth_tx_burst(slaves[i], bd_tx_q->queue_id,
                                        slave_bufs[i], slave_nb_pkts[i]);

                        /* if tx burst fails move packets to end of bufs */
                        if (unlikely(num_tx_slave < slave_nb_pkts[i])) {
                                int tx_fail_slave = slave_nb_pkts[i] - num_tx_slave;

                                tx_fail_total += tx_fail_slave;

                                memcpy(&bufs[nb_pkts - tx_fail_total],
                                       &slave_bufs[i][num_tx_slave],
                                       tx_fail_slave * sizeof(bufs[0]));
                        }
                        num_tx_total += num_tx_slave;
                }
        }

        return num_tx_total;
}

static uint16_t
bond_ethdev_tx_burst_active_backup(void *queue,
                struct rte_mbuf **bufs, uint16_t nb_pkts)
{
        struct bond_dev_private *internals;
        struct bond_tx_queue *bd_tx_q;

        bd_tx_q = (struct bond_tx_queue *)queue;
        internals = bd_tx_q->dev_private;

        if (internals->active_slave_count < 1)
                return 0;

        return rte_eth_tx_burst(internals->current_primary_port, bd_tx_q->queue_id,
                        bufs, nb_pkts);
}

static inline uint16_t
ether_hash(struct rte_ether_hdr *eth_hdr)
{
        unaligned_uint16_t *word_src_addr =
                (unaligned_uint16_t *)eth_hdr->src_addr.addr_bytes;
        unaligned_uint16_t *word_dst_addr =
                (unaligned_uint16_t *)eth_hdr->dst_addr.addr_bytes;

        return (word_src_addr[0] ^ word_dst_addr[0]) ^
                        (word_src_addr[1] ^ word_dst_addr[1]) ^
                        (word_src_addr[2] ^ word_dst_addr[2]);
}

static inline uint32_t
ipv4_hash(struct rte_ipv4_hdr *ipv4_hdr)
{
        return ipv4_hdr->src_addr ^ ipv4_hdr->dst_addr;
}

static inline uint32_t
ipv6_hash(struct rte_ipv6_hdr *ipv6_hdr)
{
        unaligned_uint32_t *word_src_addr =
                (unaligned_uint32_t *)&(ipv6_hdr->src_addr[0]);
        unaligned_uint32_t *word_dst_addr =
                (unaligned_uint32_t *)&(ipv6_hdr->dst_addr[0]);

        return (word_src_addr[0] ^ word_dst_addr[0]) ^
                        (word_src_addr[1] ^ word_dst_addr[1]) ^
                        (word_src_addr[2] ^ word_dst_addr[2]) ^
                        (word_src_addr[3] ^ word_dst_addr[3]);
}


void
burst_xmit_l2_hash(struct rte_mbuf **buf, uint16_t nb_pkts,
                uint16_t slave_count, uint16_t *slaves)
{
        struct rte_ether_hdr *eth_hdr;
        uint32_t hash;
        int i;

        for (i = 0; i < nb_pkts; i++) {
                eth_hdr = rte_pktmbuf_mtod(buf[i], struct rte_ether_hdr *);

                hash = ether_hash(eth_hdr);

                slaves[i] = (hash ^= hash >> 8) % slave_count;
        }
}

void
burst_xmit_l23_hash(struct rte_mbuf **buf, uint16_t nb_pkts,
                uint16_t slave_count, uint16_t *slaves)
{
        uint16_t i;
        struct rte_ether_hdr *eth_hdr;
        uint16_t proto;
        size_t vlan_offset;
        uint32_t hash, l3hash;

        for (i = 0; i < nb_pkts; i++) {
                eth_hdr = rte_pktmbuf_mtod(buf[i], struct rte_ether_hdr *);
                l3hash = 0;

                proto = eth_hdr->ether_type;
                hash = ether_hash(eth_hdr);

                vlan_offset = get_vlan_offset(eth_hdr, &proto);

                if (rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4) == proto) {
                        struct rte_ipv4_hdr *ipv4_hdr = (struct rte_ipv4_hdr *)
                                        ((char *)(eth_hdr + 1) + vlan_offset);
                        l3hash = ipv4_hash(ipv4_hdr);

                } else if (rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6) == proto) {
                        struct rte_ipv6_hdr *ipv6_hdr = (struct rte_ipv6_hdr *)
                                        ((char *)(eth_hdr + 1) + vlan_offset);
                        l3hash = ipv6_hash(ipv6_hdr);
                }

                hash = hash ^ l3hash;
                hash ^= hash >> 16;
                hash ^= hash >> 8;

                slaves[i] = hash % slave_count;
        }
}

void
burst_xmit_l34_hash(struct rte_mbuf **buf, uint16_t nb_pkts,
                uint16_t slave_count, uint16_t *slaves)
{
        struct rte_ether_hdr *eth_hdr;
        uint16_t proto;
        size_t vlan_offset;
        int i;

        struct rte_udp_hdr *udp_hdr;
        struct rte_tcp_hdr *tcp_hdr;
        uint32_t hash, l3hash, l4hash;

        for (i = 0; i < nb_pkts; i++) {
                eth_hdr = rte_pktmbuf_mtod(buf[i], struct rte_ether_hdr *);
                size_t pkt_end = (size_t)eth_hdr + rte_pktmbuf_data_len(buf[i]);
                proto = eth_hdr->ether_type;
                vlan_offset = get_vlan_offset(eth_hdr, &proto);
                l3hash = 0;
                l4hash = 0;

                if (rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4) == proto) {
                        struct rte_ipv4_hdr *ipv4_hdr = (struct rte_ipv4_hdr *)
                                        ((char *)(eth_hdr + 1) + vlan_offset);
                        size_t ip_hdr_offset;

                        l3hash = ipv4_hash(ipv4_hdr);

                        /* there is no L4 header in fragmented packet */
                        if (likely(rte_ipv4_frag_pkt_is_fragmented(ipv4_hdr)
                                                                == 0)) {
                                ip_hdr_offset = (ipv4_hdr->version_ihl
                                        & RTE_IPV4_HDR_IHL_MASK) *
                                        RTE_IPV4_IHL_MULTIPLIER;

                                if (ipv4_hdr->next_proto_id == IPPROTO_TCP) {
                                        tcp_hdr = (struct rte_tcp_hdr *)
                                                ((char *)ipv4_hdr +
                                                        ip_hdr_offset);
                                        if ((size_t)tcp_hdr + sizeof(*tcp_hdr)
                                                        < pkt_end)
                                                l4hash = HASH_L4_PORTS(tcp_hdr);
                                } else if (ipv4_hdr->next_proto_id ==
                                                                IPPROTO_UDP) {
                                        udp_hdr = (struct rte_udp_hdr *)
                                                ((char *)ipv4_hdr +
                                                        ip_hdr_offset);
                                        if ((size_t)udp_hdr + sizeof(*udp_hdr)
                                                        < pkt_end)
                                                l4hash = HASH_L4_PORTS(udp_hdr);
                                }
                        }
                } else if  (rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6) == proto) {
                        struct rte_ipv6_hdr *ipv6_hdr = (struct rte_ipv6_hdr *)
                                        ((char *)(eth_hdr + 1) + vlan_offset);
                        l3hash = ipv6_hash(ipv6_hdr);

                        if (ipv6_hdr->proto == IPPROTO_TCP) {
                                tcp_hdr = (struct rte_tcp_hdr *)(ipv6_hdr + 1);
                                l4hash = HASH_L4_PORTS(tcp_hdr);
                        } else if (ipv6_hdr->proto == IPPROTO_UDP) {
                                udp_hdr = (struct rte_udp_hdr *)(ipv6_hdr + 1);
                                l4hash = HASH_L4_PORTS(udp_hdr);
                        }
                }

                hash = l3hash ^ l4hash;
                hash ^= hash >> 16;
                hash ^= hash >> 8;

                slaves[i] = hash % slave_count;
        }
}

struct bwg_slave {
        uint64_t bwg_left_int;
        uint64_t bwg_left_remainder;
        uint16_t slave;
};

void
bond_tlb_activate_slave(struct bond_dev_private *internals) {
        int i;

        for (i = 0; i < internals->active_slave_count; i++) {
                tlb_last_obytets[internals->active_slaves[i]] = 0;
        }
}

static int
bandwidth_cmp(const void *a, const void *b)
{
        const struct bwg_slave *bwg_a = a;
        const struct bwg_slave *bwg_b = b;
        int64_t diff = (int64_t)bwg_b->bwg_left_int - (int64_t)bwg_a->bwg_left_int;
        int64_t diff2 = (int64_t)bwg_b->bwg_left_remainder -
                        (int64_t)bwg_a->bwg_left_remainder;
        if (diff > 0)
                return 1;
        else if (diff < 0)
                return -1;
        else if (diff2 > 0)
                return 1;
        else if (diff2 < 0)
                return -1;
        else
                return 0;
}

static void
bandwidth_left(uint16_t port_id, uint64_t load, uint8_t update_idx,
                struct bwg_slave *bwg_slave)
{
        struct rte_eth_link link_status;
        int ret;

        ret = rte_eth_link_get_nowait(port_id, &link_status);
        if (ret < 0) {
                RTE_BOND_LOG(ERR, "Slave (port %u) link get failed: %s",
                             port_id, rte_strerror(-ret));
                return;
        }
        uint64_t link_bwg = link_status.link_speed * 1000000ULL / 8;
        if (link_bwg == 0)
                return;
        link_bwg = link_bwg * (update_idx+1) * REORDER_PERIOD_MS;
        bwg_slave->bwg_left_int = (link_bwg - 1000*load) / link_bwg;
        bwg_slave->bwg_left_remainder = (link_bwg - 1000*load) % link_bwg;
}

static void
bond_ethdev_update_tlb_slave_cb(void *arg)
{
        struct bond_dev_private *internals = arg;
        struct rte_eth_stats slave_stats;
        struct bwg_slave bwg_array[RTE_MAX_ETHPORTS];
        uint16_t slave_count;
        uint64_t tx_bytes;

        uint8_t update_stats = 0;
        uint16_t slave_id;
        uint16_t i;

        internals->slave_update_idx++;


        if (internals->slave_update_idx >= REORDER_PERIOD_MS)
                update_stats = 1;

        for (i = 0; i < internals->active_slave_count; i++) {
                slave_id = internals->active_slaves[i];
                rte_eth_stats_get(slave_id, &slave_stats);
                tx_bytes = slave_stats.obytes - tlb_last_obytets[slave_id];
                bandwidth_left(slave_id, tx_bytes,
                                internals->slave_update_idx, &bwg_array[i]);
                bwg_array[i].slave = slave_id;

                if (update_stats) {
                        tlb_last_obytets[slave_id] = slave_stats.obytes;
                }
        }

        if (update_stats == 1)
                internals->slave_update_idx = 0;

        slave_count = i;
        qsort(bwg_array, slave_count, sizeof(bwg_array[0]), bandwidth_cmp);
        for (i = 0; i < slave_count; i++)
                internals->tlb_slaves_order[i] = bwg_array[i].slave;

        rte_eal_alarm_set(REORDER_PERIOD_MS * 1000, bond_ethdev_update_tlb_slave_cb,
                        (struct bond_dev_private *)internals);
}

static uint16_t
bond_ethdev_tx_burst_tlb(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
{
        struct bond_tx_queue *bd_tx_q = (struct bond_tx_queue *)queue;
        struct bond_dev_private *internals = bd_tx_q->dev_private;

        struct rte_eth_dev *primary_port =
                        &rte_eth_devices[internals->primary_port];
        uint16_t num_tx_total = 0;
        uint16_t i, j;

        uint16_t num_of_slaves = internals->active_slave_count;
        uint16_t slaves[RTE_MAX_ETHPORTS];

        struct rte_ether_hdr *ether_hdr;
        struct rte_ether_addr primary_slave_addr;
        struct rte_ether_addr active_slave_addr;

        if (num_of_slaves < 1)
                return num_tx_total;

        memcpy(slaves, internals->tlb_slaves_order,
                                sizeof(internals->tlb_slaves_order[0]) * num_of_slaves);


        rte_ether_addr_copy(primary_port->data->mac_addrs, &primary_slave_addr);

        if (nb_pkts > 3) {
                for (i = 0; i < 3; i++)
                        rte_prefetch0(rte_pktmbuf_mtod(bufs[i], void*));
        }

        for (i = 0; i < num_of_slaves; i++) {
                rte_eth_macaddr_get(slaves[i], &active_slave_addr);
                for (j = num_tx_total; j < nb_pkts; j++) {
                        if (j + 3 < nb_pkts)
                                rte_prefetch0(rte_pktmbuf_mtod(bufs[j+3], void*));

                        ether_hdr = rte_pktmbuf_mtod(bufs[j],
                                                struct rte_ether_hdr *);
                        if (rte_is_same_ether_addr(&ether_hdr->src_addr,
                                                        &primary_slave_addr))
                                rte_ether_addr_copy(&active_slave_addr,
                                                &ether_hdr->src_addr);
#if defined(RTE_LIBRTE_BOND_DEBUG_ALB) || defined(RTE_LIBRTE_BOND_DEBUG_ALB_L1)
                                        mode6_debug("TX IPv4:", ether_hdr, slaves[i], &burstnumberTX);
#endif
                }

                num_tx_total += rte_eth_tx_burst(slaves[i], bd_tx_q->queue_id,
                                bufs + num_tx_total, nb_pkts - num_tx_total);

                if (num_tx_total == nb_pkts)
                        break;
        }

        return num_tx_total;
}

void
bond_tlb_disable(struct bond_dev_private *internals)
{
        rte_eal_alarm_cancel(bond_ethdev_update_tlb_slave_cb, internals);
}

void
bond_tlb_enable(struct bond_dev_private *internals)
{
        bond_ethdev_update_tlb_slave_cb(internals);
}

static uint16_t
bond_ethdev_tx_burst_alb(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
{
        struct bond_tx_queue *bd_tx_q = (struct bond_tx_queue *)queue;
        struct bond_dev_private *internals = bd_tx_q->dev_private;

        struct rte_ether_hdr *eth_h;
        uint16_t ether_type, offset;

        struct client_data *client_info;

        /*
         * We create transmit buffers for every slave and one additional to send
         * through tlb. In worst case every packet will be send on one port.
         */
        struct rte_mbuf *slave_bufs[RTE_MAX_ETHPORTS + 1][nb_pkts];
        uint16_t slave_bufs_pkts[RTE_MAX_ETHPORTS + 1] = { 0 };

        /*
         * We create separate transmit buffers for update packets as they won't
         * be counted in num_tx_total.
         */
        struct rte_mbuf *update_bufs[RTE_MAX_ETHPORTS][ALB_HASH_TABLE_SIZE];
        uint16_t update_bufs_pkts[RTE_MAX_ETHPORTS] = { 0 };

        struct rte_mbuf *upd_pkt;
        size_t pkt_size;

        uint16_t num_send, num_not_send = 0;
        uint16_t num_tx_total = 0;
        uint16_t slave_idx;

        int i, j;

        /* Search tx buffer for ARP packets and forward them to alb */
        for (i = 0; i < nb_pkts; i++) {
                eth_h = rte_pktmbuf_mtod(bufs[i], struct rte_ether_hdr *);
                ether_type = eth_h->ether_type;
                offset = get_vlan_offset(eth_h, &ether_type);

                if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_ARP)) {
                        slave_idx = bond_mode_alb_arp_xmit(eth_h, offset, internals);

                        /* Change src mac in eth header */
                        rte_eth_macaddr_get(slave_idx, &eth_h->src_addr);

                        /* Add packet to slave tx buffer */
                        slave_bufs[slave_idx][slave_bufs_pkts[slave_idx]] = bufs[i];
                        slave_bufs_pkts[slave_idx]++;
                } else {
                        /* If packet is not ARP, send it with TLB policy */
                        slave_bufs[RTE_MAX_ETHPORTS][slave_bufs_pkts[RTE_MAX_ETHPORTS]] =
                                        bufs[i];
                        slave_bufs_pkts[RTE_MAX_ETHPORTS]++;
                }
        }

        /* Update connected client ARP tables */
        if (internals->mode6.ntt) {
                for (i = 0; i < ALB_HASH_TABLE_SIZE; i++) {
                        client_info = &internals->mode6.client_table[i];

                        if (client_info->in_use) {
                                /* Allocate new packet to send ARP update on current slave */
                                upd_pkt = rte_pktmbuf_alloc(internals->mode6.mempool);
                                if (upd_pkt == NULL) {
                                        RTE_BOND_LOG(ERR,
                                                     "Failed to allocate ARP packet from pool");
                                        continue;
                                }
                                pkt_size = sizeof(struct rte_ether_hdr) +
                                        sizeof(struct rte_arp_hdr) +
                                        client_info->vlan_count *
                                        sizeof(struct rte_vlan_hdr);
                                upd_pkt->data_len = pkt_size;
                                upd_pkt->pkt_len = pkt_size;

                                slave_idx = bond_mode_alb_arp_upd(client_info, upd_pkt,
                                                internals);

                                /* Add packet to update tx buffer */
                                update_bufs[slave_idx][update_bufs_pkts[slave_idx]] = upd_pkt;
                                update_bufs_pkts[slave_idx]++;
                        }
                }
                internals->mode6.ntt = 0;
        }

        /* Send ARP packets on proper slaves */
        for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
                if (slave_bufs_pkts[i] > 0) {
                        num_send = rte_eth_tx_burst(i, bd_tx_q->queue_id,
                                        slave_bufs[i], slave_bufs_pkts[i]);
                        for (j = 0; j < slave_bufs_pkts[i] - num_send; j++) {
                                bufs[nb_pkts - 1 - num_not_send - j] =
                                                slave_bufs[i][nb_pkts - 1 - j];
                        }

                        num_tx_total += num_send;
                        num_not_send += slave_bufs_pkts[i] - num_send;

#if defined(RTE_LIBRTE_BOND_DEBUG_ALB) || defined(RTE_LIBRTE_BOND_DEBUG_ALB_L1)
        /* Print TX stats including update packets */
                        for (j = 0; j < slave_bufs_pkts[i]; j++) {
                                eth_h = rte_pktmbuf_mtod(slave_bufs[i][j],
                                                        struct rte_ether_hdr *);
                                mode6_debug("TX ARP:", eth_h, i, &burstnumberTX);
                        }
#endif
                }
        }

        /* Send update packets on proper slaves */
        for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
                if (update_bufs_pkts[i] > 0) {
                        num_send = rte_eth_tx_burst(i, bd_tx_q->queue_id, update_bufs[i],
                                        update_bufs_pkts[i]);
                        for (j = num_send; j < update_bufs_pkts[i]; j++) {
                                rte_pktmbuf_free(update_bufs[i][j]);
                        }
#if defined(RTE_LIBRTE_BOND_DEBUG_ALB) || defined(RTE_LIBRTE_BOND_DEBUG_ALB_L1)
                        for (j = 0; j < update_bufs_pkts[i]; j++) {
                                eth_h = rte_pktmbuf_mtod(update_bufs[i][j],
                                                        struct rte_ether_hdr *);
                                mode6_debug("TX ARPupd:", eth_h, i, &burstnumberTX);
                        }
#endif
                }
        }

        /* Send non-ARP packets using tlb policy */
        if (slave_bufs_pkts[RTE_MAX_ETHPORTS] > 0) {
                num_send = bond_ethdev_tx_burst_tlb(queue,
                                slave_bufs[RTE_MAX_ETHPORTS],
                                slave_bufs_pkts[RTE_MAX_ETHPORTS]);

                for (j = 0; j < slave_bufs_pkts[RTE_MAX_ETHPORTS]; j++) {
                        bufs[nb_pkts - 1 - num_not_send - j] =
                                        slave_bufs[RTE_MAX_ETHPORTS][nb_pkts - 1 - j];
                }

                num_tx_total += num_send;
        }

        return num_tx_total;
}

static inline uint16_t
tx_burst_balance(void *queue, struct rte_mbuf **bufs, uint16_t nb_bufs,
                 uint16_t *slave_port_ids, uint16_t slave_count)
{
        struct bond_tx_queue *bd_tx_q = (struct bond_tx_queue *)queue;
        struct bond_dev_private *internals = bd_tx_q->dev_private;

        /* Array to sort mbufs for transmission on each slave into */
        struct rte_mbuf *slave_bufs[RTE_MAX_ETHPORTS][nb_bufs];
        /* Number of mbufs for transmission on each slave */
        uint16_t slave_nb_bufs[RTE_MAX_ETHPORTS] = { 0 };
        /* Mapping array generated by hash function to map mbufs to slaves */
        uint16_t bufs_slave_port_idxs[nb_bufs];

        uint16_t slave_tx_count;
        uint16_t total_tx_count = 0, total_tx_fail_count = 0;

        uint16_t i;

        /*
         * Populate slaves mbuf with the packets which are to be sent on it
         * selecting output slave using hash based on xmit policy
         */
        internals->burst_xmit_hash(bufs, nb_bufs, slave_count,
                        bufs_slave_port_idxs);

        for (i = 0; i < nb_bufs; i++) {
                /* Populate slave mbuf arrays with mbufs for that slave. */
                uint16_t slave_idx = bufs_slave_port_idxs[i];

                slave_bufs[slave_idx][slave_nb_bufs[slave_idx]++] = bufs[i];
        }

        /* Send packet burst on each slave device */
        for (i = 0; i < slave_count; i++) {
                if (slave_nb_bufs[i] == 0)
                        continue;

                slave_tx_count = rte_eth_tx_burst(slave_port_ids[i],
                                bd_tx_q->queue_id, slave_bufs[i],
                                slave_nb_bufs[i]);

                total_tx_count += slave_tx_count;

                /* If tx burst fails move packets to end of bufs */
                if (unlikely(slave_tx_count < slave_nb_bufs[i])) {
                        int slave_tx_fail_count = slave_nb_bufs[i] -
                                        slave_tx_count;
                        total_tx_fail_count += slave_tx_fail_count;
                        memcpy(&bufs[nb_bufs - total_tx_fail_count],
                               &slave_bufs[i][slave_tx_count],
                               slave_tx_fail_count * sizeof(bufs[0]));
                }
        }

        return total_tx_count;
}

static uint16_t
bond_ethdev_tx_burst_balance(void *queue, struct rte_mbuf **bufs,
                uint16_t nb_bufs)
{
        struct bond_tx_queue *bd_tx_q = (struct bond_tx_queue *)queue;
        struct bond_dev_private *internals = bd_tx_q->dev_private;

        uint16_t slave_port_ids[RTE_MAX_ETHPORTS];
        uint16_t slave_count;

        if (unlikely(nb_bufs == 0))
                return 0;

        /* Copy slave list to protect against slave up/down changes during tx
         * bursting
         */
        slave_count = internals->active_slave_count;
        if (unlikely(slave_count < 1))
                return 0;

        memcpy(slave_port_ids, internals->active_slaves,
                        sizeof(slave_port_ids[0]) * slave_count);
        return tx_burst_balance(queue, bufs, nb_bufs, slave_port_ids,
                                slave_count);
}

static inline uint16_t
tx_burst_8023ad(void *queue, struct rte_mbuf **bufs, uint16_t nb_bufs,
                bool dedicated_txq)
{
        struct bond_tx_queue *bd_tx_q = (struct bond_tx_queue *)queue;
        struct bond_dev_private *internals = bd_tx_q->dev_private;

        uint16_t slave_port_ids[RTE_MAX_ETHPORTS];
        uint16_t slave_count;

        uint16_t dist_slave_port_ids[RTE_MAX_ETHPORTS];
        uint16_t dist_slave_count;

        uint16_t slave_tx_count;

        uint16_t i;

        /* Copy slave list to protect against slave up/down changes during tx
         * bursting */
        slave_count = internals->active_slave_count;
        if (unlikely(slave_count < 1))
                return 0;

        memcpy(slave_port_ids, internals->active_slaves,
                        sizeof(slave_port_ids[0]) * slave_count);

        if (dedicated_txq)
                goto skip_tx_ring;

        /* Check for LACP control packets and send if available */
        for (i = 0; i < slave_count; i++) {
                struct port *port = &bond_mode_8023ad_ports[slave_port_ids[i]];
                struct rte_mbuf *ctrl_pkt = NULL;

                if (likely(rte_ring_empty(port->tx_ring)))
                        continue;

                if (rte_ring_dequeue(port->tx_ring,
                                     (void **)&ctrl_pkt) != -ENOENT) {
                        slave_tx_count = rte_eth_tx_burst(slave_port_ids[i],
                                        bd_tx_q->queue_id, &ctrl_pkt, 1);
                        /*
                         * re-enqueue LAG control plane packets to buffering
                         * ring if transmission fails so the packet isn't lost.
                         */
                        if (slave_tx_count != 1)
                                rte_ring_enqueue(port->tx_ring, ctrl_pkt);
                }
        }

skip_tx_ring:
        if (unlikely(nb_bufs == 0))
                return 0;

        dist_slave_count = 0;
        for (i = 0; i < slave_count; i++) {
                struct port *port = &bond_mode_8023ad_ports[slave_port_ids[i]];

                if (ACTOR_STATE(port, DISTRIBUTING))
                        dist_slave_port_ids[dist_slave_count++] =
                                        slave_port_ids[i];
        }

        if (unlikely(dist_slave_count < 1))
                return 0;

        return tx_burst_balance(queue, bufs, nb_bufs, dist_slave_port_ids,
                                dist_slave_count);
}

static uint16_t
bond_ethdev_tx_burst_8023ad(void *queue, struct rte_mbuf **bufs,
                uint16_t nb_bufs)
{
        return tx_burst_8023ad(queue, bufs, nb_bufs, false);
}

static uint16_t
bond_ethdev_tx_burst_8023ad_fast_queue(void *queue, struct rte_mbuf **bufs,
                uint16_t nb_bufs)
{
        return tx_burst_8023ad(queue, bufs, nb_bufs, true);
}

static uint16_t
bond_ethdev_tx_burst_broadcast(void *queue, struct rte_mbuf **bufs,
                uint16_t nb_pkts)
{
        struct bond_dev_private *internals;
        struct bond_tx_queue *bd_tx_q;

        uint16_t slaves[RTE_MAX_ETHPORTS];
        uint8_t tx_failed_flag = 0;
        uint16_t num_of_slaves;

        uint16_t max_nb_of_tx_pkts = 0;

        int slave_tx_total[RTE_MAX_ETHPORTS];
        int i, most_successful_tx_slave = -1;

        bd_tx_q = (struct bond_tx_queue *)queue;
        internals = bd_tx_q->dev_private;

        /* Copy slave list to protect against slave up/down changes during tx
         * bursting */
        num_of_slaves = internals->active_slave_count;
        memcpy(slaves, internals->active_slaves,
                        sizeof(internals->active_slaves[0]) * num_of_slaves);

        if (num_of_slaves < 1)
                return 0;

        /* Increment reference count on mbufs */
        for (i = 0; i < nb_pkts; i++)
                rte_mbuf_refcnt_update(bufs[i], num_of_slaves - 1);

        /* Transmit burst on each active slave */
        for (i = 0; i < num_of_slaves; i++) {
                slave_tx_total[i] = rte_eth_tx_burst(slaves[i], bd_tx_q->queue_id,
                                        bufs, nb_pkts);

                if (unlikely(slave_tx_total[i] < nb_pkts))
                        tx_failed_flag = 1;

                /* record the value and slave index for the slave which transmits the
                 * maximum number of packets */
                if (slave_tx_total[i] > max_nb_of_tx_pkts) {
                        max_nb_of_tx_pkts = slave_tx_total[i];
                        most_successful_tx_slave = i;
                }
        }

        /* if slaves fail to transmit packets from burst, the calling application
         * is not expected to know about multiple references to packets so we must
         * handle failures of all packets except those of the most successful slave
         */
        if (unlikely(tx_failed_flag))
                for (i = 0; i < num_of_slaves; i++)
                        if (i != most_successful_tx_slave)
                                while (slave_tx_total[i] < nb_pkts)
                                        rte_pktmbuf_free(bufs[slave_tx_total[i]++]);

        return max_nb_of_tx_pkts;
}

static void
link_properties_set(struct rte_eth_dev *ethdev, struct rte_eth_link *slave_link)
{
        struct bond_dev_private *bond_ctx = ethdev->data->dev_private;

        if (bond_ctx->mode == BONDING_MODE_8023AD) {
                /**
                 * If in mode 4 then save the link properties of the first
                 * slave, all subsequent slaves must match these properties
                 */
                struct rte_eth_link *bond_link = &bond_ctx->mode4.slave_link;

                bond_link->link_autoneg = slave_link->link_autoneg;
                bond_link->link_duplex = slave_link->link_duplex;
                bond_link->link_speed = slave_link->link_speed;
        } else {
                /**
                 * In any other mode the link properties are set to default
                 * values of AUTONEG/DUPLEX
                 */
                ethdev->data->dev_link.link_autoneg = RTE_ETH_LINK_AUTONEG;
                ethdev->data->dev_link.link_duplex = RTE_ETH_LINK_FULL_DUPLEX;
        }
}

static int
link_properties_valid(struct rte_eth_dev *ethdev,
                struct rte_eth_link *slave_link)
{
        struct bond_dev_private *bond_ctx = ethdev->data->dev_private;

        if (bond_ctx->mode == BONDING_MODE_8023AD) {
                struct rte_eth_link *bond_link = &bond_ctx->mode4.slave_link;

                if (bond_link->link_duplex != slave_link->link_duplex ||
                        bond_link->link_autoneg != slave_link->link_autoneg ||
                        bond_link->link_speed != slave_link->link_speed)
                        return -1;
        }

        return 0;
}

int
mac_address_get(struct rte_eth_dev *eth_dev,
                struct rte_ether_addr *dst_mac_addr)
{
        struct rte_ether_addr *mac_addr;

        if (eth_dev == NULL) {
                RTE_BOND_LOG(ERR, "NULL pointer eth_dev specified");
                return -1;
        }

        if (dst_mac_addr == NULL) {
                RTE_BOND_LOG(ERR, "NULL pointer MAC specified");
                return -1;
        }

        mac_addr = eth_dev->data->mac_addrs;

        rte_ether_addr_copy(mac_addr, dst_mac_addr);
        return 0;
}

int
mac_address_set(struct rte_eth_dev *eth_dev,
                struct rte_ether_addr *new_mac_addr)
{
        struct rte_ether_addr *mac_addr;

        if (eth_dev == NULL) {
                RTE_BOND_LOG(ERR, "NULL pointer eth_dev specified");
                return -1;
        }

        if (new_mac_addr == NULL) {
                RTE_BOND_LOG(ERR, "NULL pointer MAC specified");
                return -1;
        }

        mac_addr = eth_dev->data->mac_addrs;

        /* If new MAC is different to current MAC then update */
        if (memcmp(mac_addr, new_mac_addr, sizeof(*mac_addr)) != 0)
                memcpy(mac_addr, new_mac_addr, sizeof(*mac_addr));

        return 0;
}

static const struct rte_ether_addr null_mac_addr;

/*
 * Add additional MAC addresses to the slave
 */
int
slave_add_mac_addresses(struct rte_eth_dev *bonded_eth_dev,
                uint16_t slave_port_id)
{
        int i, ret;
        struct rte_ether_addr *mac_addr;

        for (i = 1; i < BOND_MAX_MAC_ADDRS; i++) {
                mac_addr = &bonded_eth_dev->data->mac_addrs[i];
                if (rte_is_same_ether_addr(mac_addr, &null_mac_addr))
                        break;

                ret = rte_eth_dev_mac_addr_add(slave_port_id, mac_addr, 0);
                if (ret < 0) {
                        /* rollback */
                        for (i--; i > 0; i--)
                                rte_eth_dev_mac_addr_remove(slave_port_id,
                                        &bonded_eth_dev->data->mac_addrs[i]);
                        return ret;
                }
        }

        return 0;
}

/*
 * Remove additional MAC addresses from the slave
 */
int
slave_remove_mac_addresses(struct rte_eth_dev *bonded_eth_dev,
                uint16_t slave_port_id)
{
        int i, rc, ret;
        struct rte_ether_addr *mac_addr;

        rc = 0;
        for (i = 1; i < BOND_MAX_MAC_ADDRS; i++) {
                mac_addr = &bonded_eth_dev->data->mac_addrs[i];
                if (rte_is_same_ether_addr(mac_addr, &null_mac_addr))
                        break;

                ret = rte_eth_dev_mac_addr_remove(slave_port_id, mac_addr);
                /* save only the first error */
                if (ret < 0 && rc == 0)
                        rc = ret;
        }

        return rc;
}

int
mac_address_slaves_update(struct rte_eth_dev *bonded_eth_dev)
{
        struct bond_dev_private *internals = bonded_eth_dev->data->dev_private;
        bool set;
        int i;

        /* Update slave devices MAC addresses */
        if (internals->slave_count < 1)
                return -1;

        switch (internals->mode) {
        case BONDING_MODE_ROUND_ROBIN:
        case BONDING_MODE_BALANCE:
        case BONDING_MODE_BROADCAST:
                for (i = 0; i < internals->slave_count; i++) {
                        if (rte_eth_dev_default_mac_addr_set(
                                        internals->slaves[i].port_id,
                                        bonded_eth_dev->data->mac_addrs)) {
                                RTE_BOND_LOG(ERR, "Failed to update port Id %d MAC address",
                                                internals->slaves[i].port_id);
                                return -1;
                        }
                }
                break;
        case BONDING_MODE_8023AD:
                bond_mode_8023ad_mac_address_update(bonded_eth_dev);
                break;
        case BONDING_MODE_ACTIVE_BACKUP:
        case BONDING_MODE_TLB:
        case BONDING_MODE_ALB:
        default:
                set = true;
                for (i = 0; i < internals->slave_count; i++) {
                        if (internals->slaves[i].port_id ==
                                        internals->current_primary_port) {
                                if (rte_eth_dev_default_mac_addr_set(
                                                internals->current_primary_port,
                                                bonded_eth_dev->data->mac_addrs)) {
                                        RTE_BOND_LOG(ERR, "Failed to update port Id %d MAC address",
                                                        internals->current_primary_port);
                                        set = false;
                                }
                        } else {
                                if (rte_eth_dev_default_mac_addr_set(
                                                internals->slaves[i].port_id,
                                                &internals->slaves[i].persisted_mac_addr)) {
                                        RTE_BOND_LOG(ERR, "Failed to update port Id %d MAC address",
                                                        internals->slaves[i].port_id);
                                }
                        }
                }
                if (!set)
                        return -1;
        }

        return 0;
}

int
bond_ethdev_mode_set(struct rte_eth_dev *eth_dev, int mode)
{
        struct bond_dev_private *internals;

        internals = eth_dev->data->dev_private;

        switch (mode) {
        case BONDING_MODE_ROUND_ROBIN:
                eth_dev->tx_pkt_burst = bond_ethdev_tx_burst_round_robin;
                eth_dev->rx_pkt_burst = bond_ethdev_rx_burst;
                break;
        case BONDING_MODE_ACTIVE_BACKUP:
                eth_dev->tx_pkt_burst = bond_ethdev_tx_burst_active_backup;
                eth_dev->rx_pkt_burst = bond_ethdev_rx_burst_active_backup;
                break;
        case BONDING_MODE_BALANCE:
                eth_dev->tx_pkt_burst = bond_ethdev_tx_burst_balance;
                eth_dev->rx_pkt_burst = bond_ethdev_rx_burst;
                break;
        case BONDING_MODE_BROADCAST:
                eth_dev->tx_pkt_burst = bond_ethdev_tx_burst_broadcast;
                eth_dev->rx_pkt_burst = bond_ethdev_rx_burst;
                break;
        case BONDING_MODE_8023AD:
                if (bond_mode_8023ad_enable(eth_dev) != 0)
                        return -1;

                if (internals->mode4.dedicated_queues.enabled == 0) {
                        eth_dev->rx_pkt_burst = bond_ethdev_rx_burst_8023ad;
                        eth_dev->tx_pkt_burst = bond_ethdev_tx_burst_8023ad;
                        RTE_BOND_LOG(WARNING,
                                "Using mode 4, it is necessary to do TX burst "
                                "and RX burst at least every 100ms.");
                } else {
                        /* Use flow director's optimization */
                        eth_dev->rx_pkt_burst =
                                        bond_ethdev_rx_burst_8023ad_fast_queue;
                        eth_dev->tx_pkt_burst =
                                        bond_ethdev_tx_burst_8023ad_fast_queue;
                }
                break;
        case BONDING_MODE_TLB:
                eth_dev->tx_pkt_burst = bond_ethdev_tx_burst_tlb;
                eth_dev->rx_pkt_burst = bond_ethdev_rx_burst_active_backup;
                break;
        case BONDING_MODE_ALB:
                if (bond_mode_alb_enable(eth_dev) != 0)
                        return -1;

                eth_dev->tx_pkt_burst = bond_ethdev_tx_burst_alb;
                eth_dev->rx_pkt_burst = bond_ethdev_rx_burst_alb;
                break;
        default:
                return -1;
        }

        internals->mode = mode;

        return 0;
}


static int
slave_configure_slow_queue(struct rte_eth_dev *bonded_eth_dev,
                struct rte_eth_dev *slave_eth_dev)
{
        int errval = 0;
        struct bond_dev_private *internals = bonded_eth_dev->data->dev_private;
        struct port *port = &bond_mode_8023ad_ports[slave_eth_dev->data->port_id];

        if (port->slow_pool == NULL) {
                char mem_name[256];
                int slave_id = slave_eth_dev->data->port_id;

                snprintf(mem_name, RTE_DIM(mem_name), "slave_port%u_slow_pool",
                                slave_id);
                port->slow_pool = rte_pktmbuf_pool_create(mem_name, 8191,
                        250, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
                        slave_eth_dev->data->numa_node);

                /* Any memory allocation failure in initialization is critical because
                 * resources can't be free, so reinitialization is impossible. */
                if (port->slow_pool == NULL) {
                        rte_panic("Slave %u: Failed to create memory pool '%s': %s\n",
                                slave_id, mem_name, rte_strerror(rte_errno));
                }
        }

        if (internals->mode4.dedicated_queues.enabled == 1) {
                /* Configure slow Rx queue */

                errval = rte_eth_rx_queue_setup(slave_eth_dev->data->port_id,
                                internals->mode4.dedicated_queues.rx_qid, 128,
                                rte_eth_dev_socket_id(slave_eth_dev->data->port_id),
                                NULL, port->slow_pool);
                if (errval != 0) {
                        RTE_BOND_LOG(ERR,
                                        "rte_eth_rx_queue_setup: port=%d queue_id %d, err (%d)",
                                        slave_eth_dev->data->port_id,
                                        internals->mode4.dedicated_queues.rx_qid,
                                        errval);
                        return errval;
                }

                errval = rte_eth_tx_queue_setup(slave_eth_dev->data->port_id,
                                internals->mode4.dedicated_queues.tx_qid, 512,
                                rte_eth_dev_socket_id(slave_eth_dev->data->port_id),
                                NULL);
                if (errval != 0) {
                        RTE_BOND_LOG(ERR,
                                "rte_eth_tx_queue_setup: port=%d queue_id %d, err (%d)",
                                slave_eth_dev->data->port_id,
                                internals->mode4.dedicated_queues.tx_qid,
                                errval);
                        return errval;
                }
        }
        return 0;
}

int
slave_configure(struct rte_eth_dev *bonded_eth_dev,
                struct rte_eth_dev *slave_eth_dev)
{
        struct bond_rx_queue *bd_rx_q;
        struct bond_tx_queue *bd_tx_q;
        uint16_t nb_rx_queues;
        uint16_t nb_tx_queues;

        int errval;
        uint16_t q_id;
        struct rte_flow_error flow_error;

        struct bond_dev_private *internals = bonded_eth_dev->data->dev_private;

        /* Stop slave */
        errval = rte_eth_dev_stop(slave_eth_dev->data->port_id);
        if (errval != 0)
                RTE_BOND_LOG(ERR, "rte_eth_dev_stop: port %u, err (%d)",
                             slave_eth_dev->data->port_id, errval);

        /* Enable interrupts on slave device if supported */
        if (slave_eth_dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)
                slave_eth_dev->data->dev_conf.intr_conf.lsc = 1;

        /* If RSS is enabled for bonding, try to enable it for slaves  */
        if (bonded_eth_dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG) {
                /* rss_key won't be empty if RSS is configured in bonded dev */
                slave_eth_dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len =
                                        internals->rss_key_len;
                slave_eth_dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key =
                                        internals->rss_key;

                slave_eth_dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf =
                                bonded_eth_dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf;
                slave_eth_dev->data->dev_conf.rxmode.mq_mode =
                                bonded_eth_dev->data->dev_conf.rxmode.mq_mode;
        }

        if (bonded_eth_dev->data->dev_conf.rxmode.offloads &
                        RTE_ETH_RX_OFFLOAD_VLAN_FILTER)
                slave_eth_dev->data->dev_conf.rxmode.offloads |=
                                RTE_ETH_RX_OFFLOAD_VLAN_FILTER;
        else
                slave_eth_dev->data->dev_conf.rxmode.offloads &=
                                ~RTE_ETH_RX_OFFLOAD_VLAN_FILTER;

        slave_eth_dev->data->dev_conf.rxmode.mtu =
                        bonded_eth_dev->data->dev_conf.rxmode.mtu;

        nb_rx_queues = bonded_eth_dev->data->nb_rx_queues;
        nb_tx_queues = bonded_eth_dev->data->nb_tx_queues;

        if (internals->mode == BONDING_MODE_8023AD) {
                if (internals->mode4.dedicated_queues.enabled == 1) {
                        nb_rx_queues++;
                        nb_tx_queues++;
                }
        }

        errval = rte_eth_dev_set_mtu(slave_eth_dev->data->port_id,
                                     bonded_eth_dev->data->mtu);
        if (errval != 0 && errval != -ENOTSUP) {
                RTE_BOND_LOG(ERR, "rte_eth_dev_set_mtu: port %u, err (%d)",
                                slave_eth_dev->data->port_id, errval);
                return errval;
        }

        /* Configure device */
        errval = rte_eth_dev_configure(slave_eth_dev->data->port_id,
                        nb_rx_queues, nb_tx_queues,
                        &(slave_eth_dev->data->dev_conf));
        if (errval != 0) {
                RTE_BOND_LOG(ERR, "Cannot configure slave device: port %u, err (%d)",
                                slave_eth_dev->data->port_id, errval);
                return errval;
        }

        /* Setup Rx Queues */
        for (q_id = 0; q_id < bonded_eth_dev->data->nb_rx_queues; q_id++) {
                bd_rx_q = (struct bond_rx_queue *)bonded_eth_dev->data->rx_queues[q_id];

                errval = rte_eth_rx_queue_setup(slave_eth_dev->data->port_id, q_id,
                                bd_rx_q->nb_rx_desc,
                                rte_eth_dev_socket_id(slave_eth_dev->data->port_id),
                                &(bd_rx_q->rx_conf), bd_rx_q->mb_pool);
                if (errval != 0) {
                        RTE_BOND_LOG(ERR,
                                        "rte_eth_rx_queue_setup: port=%d queue_id %d, err (%d)",
                                        slave_eth_dev->data->port_id, q_id, errval);
                        return errval;
                }
        }

        /* Setup Tx Queues */
        for (q_id = 0; q_id < bonded_eth_dev->data->nb_tx_queues; q_id++) {
                bd_tx_q = (struct bond_tx_queue *)bonded_eth_dev->data->tx_queues[q_id];

                errval = rte_eth_tx_queue_setup(slave_eth_dev->data->port_id, q_id,
                                bd_tx_q->nb_tx_desc,
                                rte_eth_dev_socket_id(slave_eth_dev->data->port_id),
                                &bd_tx_q->tx_conf);
                if (errval != 0) {
                        RTE_BOND_LOG(ERR,
                                "rte_eth_tx_queue_setup: port=%d queue_id %d, err (%d)",
                                slave_eth_dev->data->port_id, q_id, errval);
                        return errval;
                }
        }

        if (internals->mode == BONDING_MODE_8023AD &&
                        internals->mode4.dedicated_queues.enabled == 1) {
                if (slave_configure_slow_queue(bonded_eth_dev, slave_eth_dev)
                                != 0)
                        return errval;

                errval = bond_ethdev_8023ad_flow_verify(bonded_eth_dev,
                                slave_eth_dev->data->port_id);
                if (errval != 0) {
                        RTE_BOND_LOG(ERR,
                                "bond_ethdev_8023ad_flow_verify: port=%d, err (%d)",
                                slave_eth_dev->data->port_id, errval);
                        return errval;
                }

                if (internals->mode4.dedicated_queues.flow[slave_eth_dev->data->port_id] != NULL)
                        rte_flow_destroy(slave_eth_dev->data->port_id,
                                        internals->mode4.dedicated_queues.flow[slave_eth_dev->data->port_id],
                                        &flow_error);

                errval = bond_ethdev_8023ad_flow_set(bonded_eth_dev,
                                slave_eth_dev->data->port_id);
                if (errval != 0) {
                        RTE_BOND_LOG(ERR,
                                "bond_ethdev_8023ad_flow_set: port=%d, err (%d)",
                                slave_eth_dev->data->port_id, errval);
                        return errval;
                }
        }

        /* Start device */
        errval = rte_eth_dev_start(slave_eth_dev->data->port_id);
        if (errval != 0) {
                RTE_BOND_LOG(ERR, "rte_eth_dev_start: port=%u, err (%d)",
                                slave_eth_dev->data->port_id, errval);
                return -1;
        }

        /* If RSS is enabled for bonding, synchronize RETA */
        if (bonded_eth_dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS) {
                int i;
                struct bond_dev_private *internals;

                internals = bonded_eth_dev->data->dev_private;

                for (i = 0; i < internals->slave_count; i++) {
                        if (internals->slaves[i].port_id == slave_eth_dev->data->port_id) {
                                errval = rte_eth_dev_rss_reta_update(
                                                slave_eth_dev->data->port_id,
                                                &internals->reta_conf[0],
                                                internals->slaves[i].reta_size);
                                if (errval != 0) {
                                        RTE_BOND_LOG(WARNING,
                                                     "rte_eth_dev_rss_reta_update on slave port %d fails (err %d)."
                                                     " RSS Configuration for bonding may be inconsistent.",
                                                     slave_eth_dev->data->port_id, errval);
                                }
                                break;
                        }
                }
        }

        /* If lsc interrupt is set, check initial slave's link status */
        if (slave_eth_dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC) {
                slave_eth_dev->dev_ops->link_update(slave_eth_dev, 0);
                bond_ethdev_lsc_event_callback(slave_eth_dev->data->port_id,
                        RTE_ETH_EVENT_INTR_LSC, &bonded_eth_dev->data->port_id,
                        NULL);
        }

        return 0;
}

void
slave_remove(struct bond_dev_private *internals,
                struct rte_eth_dev *slave_eth_dev)
{
        uint16_t i;

        for (i = 0; i < internals->slave_count; i++)
                if (internals->slaves[i].port_id ==
                                slave_eth_dev->data->port_id)
                        break;

        if (i < (internals->slave_count - 1)) {
                struct rte_flow *flow;

                memmove(&internals->slaves[i], &internals->slaves[i + 1],
                                sizeof(internals->slaves[0]) *
                                (internals->slave_count - i - 1));
                TAILQ_FOREACH(flow, &internals->flow_list, next) {
                        memmove(&flow->flows[i], &flow->flows[i + 1],
                                sizeof(flow->flows[0]) *
                                (internals->slave_count - i - 1));
                        flow->flows[internals->slave_count - 1] = NULL;
                }
        }

        internals->slave_count--;

        /* force reconfiguration of slave interfaces */
        rte_eth_dev_internal_reset(slave_eth_dev);
}

static void
bond_ethdev_slave_link_status_change_monitor(void *cb_arg);

void
slave_add(struct bond_dev_private *internals,
                struct rte_eth_dev *slave_eth_dev)
{
        struct bond_slave_details *slave_details =
                        &internals->slaves[internals->slave_count];

        slave_details->port_id = slave_eth_dev->data->port_id;
        slave_details->last_link_status = 0;

        /* Mark slave devices that don't support interrupts so we can
         * compensate when we start the bond
         */
        if (!(slave_eth_dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)) {
                slave_details->link_status_poll_enabled = 1;
        }

        slave_details->link_status_wait_to_complete = 0;
        /* clean tlb_last_obytes when adding port for bonding device */
        memcpy(&(slave_details->persisted_mac_addr), slave_eth_dev->data->mac_addrs,
                        sizeof(struct rte_ether_addr));
}

void
bond_ethdev_primary_set(struct bond_dev_private *internals,
                uint16_t slave_port_id)
{
        int i;

        if (internals->active_slave_count < 1)
                internals->current_primary_port = slave_port_id;
        else
                /* Search bonded device slave ports for new proposed primary port */
                for (i = 0; i < internals->active_slave_count; i++) {
                        if (internals->active_slaves[i] == slave_port_id)
                                internals->current_primary_port = slave_port_id;
                }
}

static int
bond_ethdev_promiscuous_enable(struct rte_eth_dev *eth_dev);

static int
bond_ethdev_start(struct rte_eth_dev *eth_dev)
{
        struct bond_dev_private *internals;
        int i;

        /* slave eth dev will be started by bonded device */
        if (check_for_bonded_ethdev(eth_dev)) {
                RTE_BOND_LOG(ERR, "User tried to explicitly start a slave eth_dev (%d)",
                                eth_dev->data->port_id);
                return -1;
        }

        eth_dev->data->dev_link.link_status = RTE_ETH_LINK_DOWN;
        eth_dev->data->dev_started = 1;

        internals = eth_dev->data->dev_private;

        if (internals->slave_count == 0) {
                RTE_BOND_LOG(ERR, "Cannot start port since there are no slave devices");
                goto out_err;
        }

        if (internals->user_defined_mac == 0) {
                struct rte_ether_addr *new_mac_addr = NULL;

                for (i = 0; i < internals->slave_count; i++)
                        if (internals->slaves[i].port_id == internals->primary_port)
                                new_mac_addr = &internals->slaves[i].persisted_mac_addr;

                if (new_mac_addr == NULL)
                        goto out_err;

                if (mac_address_set(eth_dev, new_mac_addr) != 0) {
                        RTE_BOND_LOG(ERR, "bonded port (%d) failed to update MAC address",
                                        eth_dev->data->port_id);
                        goto out_err;
                }
        }

        if (internals->mode == BONDING_MODE_8023AD) {
                if (internals->mode4.dedicated_queues.enabled == 1) {
                        internals->mode4.dedicated_queues.rx_qid =
                                        eth_dev->data->nb_rx_queues;
                        internals->mode4.dedicated_queues.tx_qid =
                                        eth_dev->data->nb_tx_queues;
                }
        }


        /* Reconfigure each slave device if starting bonded device */
        for (i = 0; i < internals->slave_count; i++) {
                struct rte_eth_dev *slave_ethdev =
                                &(rte_eth_devices[internals->slaves[i].port_id]);
                if (slave_configure(eth_dev, slave_ethdev) != 0) {
                        RTE_BOND_LOG(ERR,
                                "bonded port (%d) failed to reconfigure slave device (%d)",
                                eth_dev->data->port_id,
                                internals->slaves[i].port_id);
                        goto out_err;
                }
                /* We will need to poll for link status if any slave doesn't
                 * support interrupts
                 */
                if (internals->slaves[i].link_status_poll_enabled)

                        internals->link_status_polling_enabled = 1;
        }

        /* start polling if needed */
        if (internals->link_status_polling_enabled) {
                rte_eal_alarm_set(
                        internals->link_status_polling_interval_ms * 1000,
                        bond_ethdev_slave_link_status_change_monitor,
                        (void *)&rte_eth_devices[internals->port_id]);
        }

        /* Update all slave devices MACs*/
        if (mac_address_slaves_update(eth_dev) != 0)
                goto out_err;

        if (internals->user_defined_primary_port)
                bond_ethdev_primary_set(internals, internals->primary_port);

        if (internals->mode == BONDING_MODE_8023AD)
                bond_mode_8023ad_start(eth_dev);

        if (internals->mode == BONDING_MODE_TLB ||
                        internals->mode == BONDING_MODE_ALB)
                bond_tlb_enable(internals);

        return 0;

out_err:
        eth_dev->data->dev_started = 0;
        return -1;
}

static void
bond_ethdev_free_queues(struct rte_eth_dev *dev)
{
        uint16_t i;

        if (dev->data->rx_queues != NULL) {
                for (i = 0; i < dev->data->nb_rx_queues; i++) {
                        rte_free(dev->data->rx_queues[i]);
                        dev->data->rx_queues[i] = NULL;
                }
                dev->data->nb_rx_queues = 0;
        }

        if (dev->data->tx_queues != NULL) {
                for (i = 0; i < dev->data->nb_tx_queues; i++) {
                        rte_free(dev->data->tx_queues[i]);
                        dev->data->tx_queues[i] = NULL;
                }
                dev->data->nb_tx_queues = 0;
        }
}

int
bond_ethdev_stop(struct rte_eth_dev *eth_dev)
{
        struct bond_dev_private *internals = eth_dev->data->dev_private;
        uint16_t i;
        int ret;

        if (internals->mode == BONDING_MODE_8023AD) {
                struct port *port;
                void *pkt = NULL;

                bond_mode_8023ad_stop(eth_dev);

                /* Discard all messages to/from mode 4 state machines */
                for (i = 0; i < internals->active_slave_count; i++) {
                        port = &bond_mode_8023ad_ports[internals->active_slaves[i]];

                        RTE_ASSERT(port->rx_ring != NULL);
                        while (rte_ring_dequeue(port->rx_ring, &pkt) != -ENOENT)
                                rte_pktmbuf_free(pkt);

                        RTE_ASSERT(port->tx_ring != NULL);
                        while (rte_ring_dequeue(port->tx_ring, &pkt) != -ENOENT)
                                rte_pktmbuf_free(pkt);
                }
        }

        if (internals->mode == BONDING_MODE_TLB ||
                        internals->mode == BONDING_MODE_ALB) {
                bond_tlb_disable(internals);
                for (i = 0; i < internals->active_slave_count; i++)
                        tlb_last_obytets[internals->active_slaves[i]] = 0;
        }

        eth_dev->data->dev_link.link_status = RTE_ETH_LINK_DOWN;
        eth_dev->data->dev_started = 0;

        internals->link_status_polling_enabled = 0;
        for (i = 0; i < internals->slave_count; i++) {
                uint16_t slave_id = internals->slaves[i].port_id;
                if (find_slave_by_id(internals->active_slaves,
                                internals->active_slave_count, slave_id) !=
                                                internals->active_slave_count) {
                        internals->slaves[i].last_link_status = 0;
                        ret = rte_eth_dev_stop(slave_id);
                        if (ret != 0) {
                                RTE_BOND_LOG(ERR, "Failed to stop device on port %u",
                                             slave_id);
                                return ret;
                        }
                        deactivate_slave(eth_dev, slave_id);
                }
        }

        return 0;
}

int
bond_ethdev_close(struct rte_eth_dev *dev)
{
        struct bond_dev_private *internals = dev->data->dev_private;
        uint16_t bond_port_id = internals->port_id;
        int skipped = 0;
        struct rte_flow_error ferror;

        if (rte_eal_process_type() != RTE_PROC_PRIMARY)
                return 0;

        RTE_BOND_LOG(INFO, "Closing bonded device %s", dev->device->name);
        while (internals->slave_count != skipped) {
                uint16_t port_id = internals->slaves[skipped].port_id;

                if (rte_eth_dev_stop(port_id) != 0) {
                        RTE_BOND_LOG(ERR, "Failed to stop device on port %u",
                                     port_id);
                        skipped++;
                }

                if (rte_eth_bond_slave_remove(bond_port_id, port_id) != 0) {
                        RTE_BOND_LOG(ERR,
                                     "Failed to remove port %d from bonded device %s",
                                     port_id, dev->device->name);
                        skipped++;
                }
        }
        bond_flow_ops.flush(dev, &ferror);
        bond_ethdev_free_queues(dev);
        rte_bitmap_reset(internals->vlan_filter_bmp);
        rte_bitmap_free(internals->vlan_filter_bmp);
        rte_free(internals->vlan_filter_bmpmem);

        /* Try to release mempool used in mode6. If the bond
         * device is not mode6, free the NULL is not problem.
         */
        rte_mempool_free(internals->mode6.mempool);

        if (internals->kvlist != NULL)
                rte_kvargs_free(internals->kvlist);

        return 0;
}

/* forward declaration */
static int bond_ethdev_configure(struct rte_eth_dev *dev);

static int
bond_ethdev_info(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
{
        struct bond_dev_private *internals = dev->data->dev_private;
        struct bond_slave_details slave;
        int ret;

        uint16_t max_nb_rx_queues = UINT16_MAX;
        uint16_t max_nb_tx_queues = UINT16_MAX;
        uint16_t max_rx_desc_lim = UINT16_MAX;
        uint16_t max_tx_desc_lim = UINT16_MAX;

        dev_info->max_mac_addrs = BOND_MAX_MAC_ADDRS;

        dev_info->max_rx_pktlen = internals->candidate_max_rx_pktlen ?
                        internals->candidate_max_rx_pktlen :
                        RTE_ETHER_MAX_JUMBO_FRAME_LEN;

        /* Max number of tx/rx queues that the bonded device can support is the
         * minimum values of the bonded slaves, as all slaves must be capable
         * of supporting the same number of tx/rx queues.
         */
        if (internals->slave_count > 0) {
                struct rte_eth_dev_info slave_info;
                uint16_t idx;

                for (idx = 0; idx < internals->slave_count; idx++) {
                        slave = internals->slaves[idx];
                        ret = rte_eth_dev_info_get(slave.port_id, &slave_info);
                        if (ret != 0) {
                                RTE_BOND_LOG(ERR,
                                        "%s: Error during getting device (port %u) info: %s\n",
                                        __func__,
                                        slave.port_id,
                                        strerror(-ret));

                                return ret;
                        }

                        if (slave_info.max_rx_queues < max_nb_rx_queues)
                                max_nb_rx_queues = slave_info.max_rx_queues;

                        if (slave_info.max_tx_queues < max_nb_tx_queues)
                                max_nb_tx_queues = slave_info.max_tx_queues;

                        if (slave_info.rx_desc_lim.nb_max < max_rx_desc_lim)
                                max_rx_desc_lim = slave_info.rx_desc_lim.nb_max;

                        if (slave_info.tx_desc_lim.nb_max < max_tx_desc_lim)
                                max_tx_desc_lim = slave_info.tx_desc_lim.nb_max;
                }
        }

        dev_info->max_rx_queues = max_nb_rx_queues;
        dev_info->max_tx_queues = max_nb_tx_queues;

        memcpy(&dev_info->default_rxconf, &internals->default_rxconf,
               sizeof(dev_info->default_rxconf));
        memcpy(&dev_info->default_txconf, &internals->default_txconf,
               sizeof(dev_info->default_txconf));

        dev_info->rx_desc_lim.nb_max = max_rx_desc_lim;
        dev_info->tx_desc_lim.nb_max = max_tx_desc_lim;

        /**
         * If dedicated hw queues enabled for link bonding device in LACP mode
         * then we need to reduce the maximum number of data path queues by 1.
         */
        if (internals->mode == BONDING_MODE_8023AD &&
                internals->mode4.dedicated_queues.enabled == 1) {
                dev_info->max_rx_queues--;
                dev_info->max_tx_queues--;
        }

        dev_info->min_rx_bufsize = 0;

        dev_info->rx_offload_capa = internals->rx_offload_capa;
        dev_info->tx_offload_capa = internals->tx_offload_capa;
        dev_info->rx_queue_offload_capa = internals->rx_queue_offload_capa;
        dev_info->tx_queue_offload_capa = internals->tx_queue_offload_capa;
        dev_info->flow_type_rss_offloads = internals->flow_type_rss_offloads;

        dev_info->reta_size = internals->reta_size;
        dev_info->hash_key_size = internals->rss_key_len;

        return 0;
}

static int
bond_ethdev_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
{
        int res;
        uint16_t i;
        struct bond_dev_private *internals = dev->data->dev_private;

        /* don't do this while a slave is being added */
        rte_spinlock_lock(&internals->lock);

        if (on)
                rte_bitmap_set(internals->vlan_filter_bmp, vlan_id);
        else
                rte_bitmap_clear(internals->vlan_filter_bmp, vlan_id);

        for (i = 0; i < internals->slave_count; i++) {
                uint16_t port_id = internals->slaves[i].port_id;

                res = rte_eth_dev_vlan_filter(port_id, vlan_id, on);
                if (res == ENOTSUP)
                        RTE_BOND_LOG(WARNING,
                                     "Setting VLAN filter on slave port %u not supported.",
                                     port_id);
        }

        rte_spinlock_unlock(&internals->lock);
        return 0;
}

static int
bond_ethdev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
                uint16_t nb_rx_desc, unsigned int socket_id __rte_unused,
                const struct rte_eth_rxconf *rx_conf, struct rte_mempool *mb_pool)
{
        struct bond_rx_queue *bd_rx_q = (struct bond_rx_queue *)
                        rte_zmalloc_socket(NULL, sizeof(struct bond_rx_queue),
                                        0, dev->data->numa_node);
        if (bd_rx_q == NULL)
                return -1;

        bd_rx_q->queue_id = rx_queue_id;
        bd_rx_q->dev_private = dev->data->dev_private;

        bd_rx_q->nb_rx_desc = nb_rx_desc;

        memcpy(&(bd_rx_q->rx_conf), rx_conf, sizeof(struct rte_eth_rxconf));
        bd_rx_q->mb_pool = mb_pool;

        dev->data->rx_queues[rx_queue_id] = bd_rx_q;

        return 0;
}

static int
bond_ethdev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
                uint16_t nb_tx_desc, unsigned int socket_id __rte_unused,
                const struct rte_eth_txconf *tx_conf)
{
        struct bond_tx_queue *bd_tx_q  = (struct bond_tx_queue *)
                        rte_zmalloc_socket(NULL, sizeof(struct bond_tx_queue),
                                        0, dev->data->numa_node);

        if (bd_tx_q == NULL)
                return -1;

        bd_tx_q->queue_id = tx_queue_id;
        bd_tx_q->dev_private = dev->data->dev_private;

        bd_tx_q->nb_tx_desc = nb_tx_desc;
        memcpy(&(bd_tx_q->tx_conf), tx_conf, sizeof(bd_tx_q->tx_conf));

        dev->data->tx_queues[tx_queue_id] = bd_tx_q;

        return 0;
}

static void
bond_ethdev_rx_queue_release(struct rte_eth_dev *dev, uint16_t queue_id)
{
        void *queue = dev->data->rx_queues[queue_id];

        if (queue == NULL)
                return;

        rte_free(queue);
}

static void
bond_ethdev_tx_queue_release(struct rte_eth_dev *dev, uint16_t queue_id)
{
        void *queue = dev->data->tx_queues[queue_id];

        if (queue == NULL)
                return;

        rte_free(queue);
}

static void
bond_ethdev_slave_link_status_change_monitor(void *cb_arg)
{
        struct rte_eth_dev *bonded_ethdev, *slave_ethdev;
        struct bond_dev_private *internals;

        /* Default value for polling slave found is true as we don't want to
         * disable the polling thread if we cannot get the lock */
        int i, polling_slave_found = 1;

        if (cb_arg == NULL)
                return;

        bonded_ethdev = cb_arg;
        internals = bonded_ethdev->data->dev_private;

        if (!bonded_ethdev->data->dev_started ||
                !internals->link_status_polling_enabled)
                return;

        /* If device is currently being configured then don't check slaves link
         * status, wait until next period */
        if (rte_spinlock_trylock(&internals->lock)) {
                if (internals->slave_count > 0)
                        polling_slave_found = 0;

                for (i = 0; i < internals->slave_count; i++) {
                        if (!internals->slaves[i].link_status_poll_enabled)
                                continue;

                        slave_ethdev = &rte_eth_devices[internals->slaves[i].port_id];
                        polling_slave_found = 1;

                        /* Update slave link status */
                        (*slave_ethdev->dev_ops->link_update)(slave_ethdev,
                                        internals->slaves[i].link_status_wait_to_complete);

                        /* if link status has changed since last checked then call lsc
                         * event callback */
                        if (slave_ethdev->data->dev_link.link_status !=
                                        internals->slaves[i].last_link_status) {
                                internals->slaves[i].last_link_status =
                                                slave_ethdev->data->dev_link.link_status;

                                bond_ethdev_lsc_event_callback(internals->slaves[i].port_id,
                                                RTE_ETH_EVENT_INTR_LSC,
                                                &bonded_ethdev->data->port_id,
                                                NULL);
                        }
                }
                rte_spinlock_unlock(&internals->lock);
        }

        if (polling_slave_found)
                /* Set alarm to continue monitoring link status of slave ethdev's */
                rte_eal_alarm_set(internals->link_status_polling_interval_ms * 1000,
                                bond_ethdev_slave_link_status_change_monitor, cb_arg);
}

static int
bond_ethdev_link_update(struct rte_eth_dev *ethdev, int wait_to_complete)
{
        int (*link_update)(uint16_t port_id, struct rte_eth_link *eth_link);

        struct bond_dev_private *bond_ctx;
        struct rte_eth_link slave_link;

        bool one_link_update_succeeded;
        uint32_t idx;
        int ret;

        bond_ctx = ethdev->data->dev_private;

        ethdev->data->dev_link.link_speed = RTE_ETH_SPEED_NUM_NONE;

        if (ethdev->data->dev_started == 0 ||
                        bond_ctx->active_slave_count == 0) {
                ethdev->data->dev_link.link_status = RTE_ETH_LINK_DOWN;
                return 0;
        }

        ethdev->data->dev_link.link_status = RTE_ETH_LINK_UP;

        if (wait_to_complete)
                link_update = rte_eth_link_get;
        else
                link_update = rte_eth_link_get_nowait;

        switch (bond_ctx->mode) {
        case BONDING_MODE_BROADCAST:
                /**
                 * Setting link speed to UINT32_MAX to ensure we pick up the
                 * value of the first active slave
                 */
                ethdev->data->dev_link.link_speed = UINT32_MAX;

                /**
                 * link speed is minimum value of all the slaves link speed as
                 * packet loss will occur on this slave if transmission at rates
                 * greater than this are attempted
                 */
                for (idx = 0; idx < bond_ctx->active_slave_count; idx++) {
                        ret = link_update(bond_ctx->active_slaves[idx],
                                          &slave_link);
                        if (ret < 0) {
                                ethdev->data->dev_link.link_speed =
                                        RTE_ETH_SPEED_NUM_NONE;
                                RTE_BOND_LOG(ERR,
                                        "Slave (port %u) link get failed: %s",
                                        bond_ctx->active_slaves[idx],
                                        rte_strerror(-ret));
                                return 0;
                        }

                        if (slave_link.link_speed <
                                        ethdev->data->dev_link.link_speed)
                                ethdev->data->dev_link.link_speed =
                                                slave_link.link_speed;
                }
                break;
        case BONDING_MODE_ACTIVE_BACKUP:
                /* Current primary slave */
                ret = link_update(bond_ctx->current_primary_port, &slave_link);
                if (ret < 0) {
                        RTE_BOND_LOG(ERR, "Slave (port %u) link get failed: %s",
                                bond_ctx->current_primary_port,
                                rte_strerror(-ret));
                        return 0;
                }

                ethdev->data->dev_link.link_speed = slave_link.link_speed;
                break;
        case BONDING_MODE_8023AD:
                ethdev->data->dev_link.link_autoneg =
                                bond_ctx->mode4.slave_link.link_autoneg;
                ethdev->data->dev_link.link_duplex =
                                bond_ctx->mode4.slave_link.link_duplex;
                /* fall through */
                /* to update link speed */
        case BONDING_MODE_ROUND_ROBIN:
        case BONDING_MODE_BALANCE:
        case BONDING_MODE_TLB:
        case BONDING_MODE_ALB:
        default:
                /**
                 * In theses mode the maximum theoretical link speed is the sum
                 * of all the slaves
                 */
                ethdev->data->dev_link.link_speed = RTE_ETH_SPEED_NUM_NONE;
                one_link_update_succeeded = false;

                for (idx = 0; idx < bond_ctx->active_slave_count; idx++) {
                        ret = link_update(bond_ctx->active_slaves[idx],
                                        &slave_link);
                        if (ret < 0) {
                                RTE_BOND_LOG(ERR,
                                        "Slave (port %u) link get failed: %s",
                                        bond_ctx->active_slaves[idx],
                                        rte_strerror(-ret));
                                continue;
                        }

                        one_link_update_succeeded = true;
                        ethdev->data->dev_link.link_speed +=
                                        slave_link.link_speed;
                }

                if (!one_link_update_succeeded) {
                        RTE_BOND_LOG(ERR, "All slaves link get failed");
                        return 0;
                }
        }


        return 0;
}


static int
bond_ethdev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
{
        struct bond_dev_private *internals = dev->data->dev_private;
        struct rte_eth_stats slave_stats;
        int i, j;

        for (i = 0; i < internals->slave_count; i++) {
                rte_eth_stats_get(internals->slaves[i].port_id, &slave_stats);

                stats->ipackets += slave_stats.ipackets;
                stats->opackets += slave_stats.opackets;
                stats->ibytes += slave_stats.ibytes;
                stats->obytes += slave_stats.obytes;
                stats->imissed += slave_stats.imissed;
                stats->ierrors += slave_stats.ierrors;
                stats->oerrors += slave_stats.oerrors;
                stats->rx_nombuf += slave_stats.rx_nombuf;

                for (j = 0; j < RTE_ETHDEV_QUEUE_STAT_CNTRS; j++) {
                        stats->q_ipackets[j] += slave_stats.q_ipackets[j];
                        stats->q_opackets[j] += slave_stats.q_opackets[j];
                        stats->q_ibytes[j] += slave_stats.q_ibytes[j];
                        stats->q_obytes[j] += slave_stats.q_obytes[j];
                        stats->q_errors[j] += slave_stats.q_errors[j];
                }

        }

        return 0;
}

static int
bond_ethdev_stats_reset(struct rte_eth_dev *dev)
{
        struct bond_dev_private *internals = dev->data->dev_private;
        int i;
        int err;
        int ret;

        for (i = 0, err = 0; i < internals->slave_count; i++) {
                ret = rte_eth_stats_reset(internals->slaves[i].port_id);
                if (ret != 0)
                        err = ret;
        }

        return err;
}

static int
bond_ethdev_promiscuous_enable(struct rte_eth_dev *eth_dev)
{
        struct bond_dev_private *internals = eth_dev->data->dev_private;
        int i;
        int ret = 0;
        uint16_t port_id;

        switch (internals->mode) {
        /* Promiscuous mode is propagated to all slaves */
        case BONDING_MODE_ROUND_ROBIN:
        case BONDING_MODE_BALANCE:
        case BONDING_MODE_BROADCAST:
        case BONDING_MODE_8023AD: {
                unsigned int slave_ok = 0;

                for (i = 0; i < internals->slave_count; i++) {
                        port_id = internals->slaves[i].port_id;

                        ret = rte_eth_promiscuous_enable(port_id);
                        if (ret != 0)
                                RTE_BOND_LOG(ERR,
                                        "Failed to enable promiscuous mode for port %u: %s",
                                        port_id, rte_strerror(-ret));
                        else
                                slave_ok++;
                }
                /*
                 * Report success if operation is successful on at least
                 * on one slave. Otherwise return last error code.
                 */
                if (slave_ok > 0)
                        ret = 0;
                break;
        }
        /* Promiscuous mode is propagated only to primary slave */
        case BONDING_MODE_ACTIVE_BACKUP:
        case BONDING_MODE_TLB:
        case BONDING_MODE_ALB:
        default:
                /* Do not touch promisc when there cannot be primary ports */
                if (internals->slave_count == 0)
                        break;
                port_id = internals->current_primary_port;
                ret = rte_eth_promiscuous_enable(port_id);
                if (ret != 0)
                        RTE_BOND_LOG(ERR,
                                "Failed to enable promiscuous mode for port %u: %s",
                                port_id, rte_strerror(-ret));
        }

        return ret;
}

static int
bond_ethdev_promiscuous_disable(struct rte_eth_dev *dev)
{
        struct bond_dev_private *internals = dev->data->dev_private;
        int i;
        int ret = 0;
        uint16_t port_id;

        switch (internals->mode) {
        /* Promiscuous mode is propagated to all slaves */
        case BONDING_MODE_ROUND_ROBIN:
        case BONDING_MODE_BALANCE:
        case BONDING_MODE_BROADCAST:
        case BONDING_MODE_8023AD: {
                unsigned int slave_ok = 0;

                for (i = 0; i < internals->slave_count; i++) {
                        port_id = internals->slaves[i].port_id;

                        if (internals->mode == BONDING_MODE_8023AD &&
                            bond_mode_8023ad_ports[port_id].forced_rx_flags ==
                                        BOND_8023AD_FORCED_PROMISC) {
                                slave_ok++;
                                continue;
                        }
                        ret = rte_eth_promiscuous_disable(port_id);
                        if (ret != 0)
                                RTE_BOND_LOG(ERR,
                                        "Failed to disable promiscuous mode for port %u: %s",
                                        port_id, rte_strerror(-ret));
                        else
                                slave_ok++;
                }
                /*
                 * Report success if operation is successful on at least
                 * on one slave. Otherwise return last error code.
                 */
                if (slave_ok > 0)
                        ret = 0;
                break;
        }
        /* Promiscuous mode is propagated only to primary slave */
        case BONDING_MODE_ACTIVE_BACKUP:
        case BONDING_MODE_TLB:
        case BONDING_MODE_ALB:
        default:
                /* Do not touch promisc when there cannot be primary ports */
                if (internals->slave_count == 0)
                        break;
                port_id = internals->current_primary_port;
                ret = rte_eth_promiscuous_disable(port_id);
                if (ret != 0)
                        RTE_BOND_LOG(ERR,
                                "Failed to disable promiscuous mode for port %u: %s",
                                port_id, rte_strerror(-ret));
        }

        return ret;
}

static int
bond_ethdev_allmulticast_enable(struct rte_eth_dev *eth_dev)
{
        struct bond_dev_private *internals = eth_dev->data->dev_private;
        int i;
        int ret = 0;
        uint16_t port_id;

        switch (internals->mode) {
        /* allmulti mode is propagated to all slaves */
        case BONDING_MODE_ROUND_ROBIN:
        case BONDING_MODE_BALANCE:
        case BONDING_MODE_BROADCAST:
        case BONDING_MODE_8023AD: {
                unsigned int slave_ok = 0;

                for (i = 0; i < internals->slave_count; i++) {
                        port_id = internals->slaves[i].port_id;

                        ret = rte_eth_allmulticast_enable(port_id);
                        if (ret != 0)
                                RTE_BOND_LOG(ERR,
                                        "Failed to enable allmulti mode for port %u: %s",
                                        port_id, rte_strerror(-ret));
                        else
                                slave_ok++;
                }
                /*
                 * Report success if operation is successful on at least
                 * on one slave. Otherwise return last error code.
                 */
                if (slave_ok > 0)
                        ret = 0;
                break;
        }
        /* allmulti mode is propagated only to primary slave */
        case BONDING_MODE_ACTIVE_BACKUP:
        case BONDING_MODE_TLB:
        case BONDING_MODE_ALB:
        default:
                /* Do not touch allmulti when there cannot be primary ports */
                if (internals->slave_count == 0)
                        break;
                port_id = internals->current_primary_port;
                ret = rte_eth_allmulticast_enable(port_id);
                if (ret != 0)
                        RTE_BOND_LOG(ERR,
                                "Failed to enable allmulti mode for port %u: %s",
                                port_id, rte_strerror(-ret));
        }

        return ret;
}

static int
bond_ethdev_allmulticast_disable(struct rte_eth_dev *eth_dev)
{
        struct bond_dev_private *internals = eth_dev->data->dev_private;
        int i;
        int ret = 0;
        uint16_t port_id;

        switch (internals->mode) {
        /* allmulti mode is propagated to all slaves */
        case BONDING_MODE_ROUND_ROBIN:
        case BONDING_MODE_BALANCE:
        case BONDING_MODE_BROADCAST:
        case BONDING_MODE_8023AD: {
                unsigned int slave_ok = 0;

                for (i = 0; i < internals->slave_count; i++) {
                        uint16_t port_id = internals->slaves[i].port_id;

                        if (internals->mode == BONDING_MODE_8023AD &&
                            bond_mode_8023ad_ports[port_id].forced_rx_flags ==
                                        BOND_8023AD_FORCED_ALLMULTI)
                                continue;

                        ret = rte_eth_allmulticast_disable(port_id);
                        if (ret != 0)
                                RTE_BOND_LOG(ERR,
                                        "Failed to disable allmulti mode for port %u: %s",
                                        port_id, rte_strerror(-ret));
                        else
                                slave_ok++;
                }
                /*
                 * Report success if operation is successful on at least
                 * on one slave. Otherwise return last error code.
                 */
                if (slave_ok > 0)
                        ret = 0;
                break;
        }
        /* allmulti mode is propagated only to primary slave */
        case BONDING_MODE_ACTIVE_BACKUP:
        case BONDING_MODE_TLB:
        case BONDING_MODE_ALB:
        default:
                /* Do not touch allmulti when there cannot be primary ports */
                if (internals->slave_count == 0)
                        break;
                port_id = internals->current_primary_port;
                ret = rte_eth_allmulticast_disable(port_id);
                if (ret != 0)
                        RTE_BOND_LOG(ERR,
                                "Failed to disable allmulti mode for port %u: %s",
                                port_id, rte_strerror(-ret));
        }

        return ret;
}

static void
bond_ethdev_delayed_lsc_propagation(void *arg)
{
        if (arg == NULL)
                return;

        rte_eth_dev_callback_process((struct rte_eth_dev *)arg,
                        RTE_ETH_EVENT_INTR_LSC, NULL);
}

int
bond_ethdev_lsc_event_callback(uint16_t port_id, enum rte_eth_event_type type,
                void *param, void *ret_param __rte_unused)
{
        struct rte_eth_dev *bonded_eth_dev;
        struct bond_dev_private *internals;
        struct rte_eth_link link;
        int rc = -1;
        int ret;

        uint8_t lsc_flag = 0;
        int valid_slave = 0;
        uint16_t active_pos;
        uint16_t i;

        if (type != RTE_ETH_EVENT_INTR_LSC || param == NULL)
                return rc;

        bonded_eth_dev = &rte_eth_devices[*(uint16_t *)param];

        if (check_for_bonded_ethdev(bonded_eth_dev))
                return rc;

        internals = bonded_eth_dev->data->dev_private;

        /* If the device isn't started don't handle interrupts */
        if (!bonded_eth_dev->data->dev_started)
                return rc;

        /* verify that port_id is a valid slave of bonded port */
        for (i = 0; i < internals->slave_count; i++) {
                if (internals->slaves[i].port_id == port_id) {
                        valid_slave = 1;
                        break;
                }
        }

        if (!valid_slave)
                return rc;

        /* Synchronize lsc callback parallel calls either by real link event
         * from the slaves PMDs or by the bonding PMD itself.
         */
        rte_spinlock_lock(&internals->lsc_lock);

        /* Search for port in active port list */
        active_pos = find_slave_by_id(internals->active_slaves,
                        internals->active_slave_count, port_id);

        ret = rte_eth_link_get_nowait(port_id, &link);
        if (ret < 0)
                RTE_BOND_LOG(ERR, "Slave (port %u) link get failed", port_id);

        if (ret == 0 && link.link_status) {
                if (active_pos < internals->active_slave_count)
                        goto link_update;

                /* check link state properties if bonded link is up*/
                if (bonded_eth_dev->data->dev_link.link_status == RTE_ETH_LINK_UP) {
                        if (link_properties_valid(bonded_eth_dev, &link) != 0)
                                RTE_BOND_LOG(ERR, "Invalid link properties "
                                             "for slave %d in bonding mode %d",
                                             port_id, internals->mode);
                } else {
                        /* inherit slave link properties */
                        link_properties_set(bonded_eth_dev, &link);
                }

                /* If no active slave ports then set this port to be
                 * the primary port.
                 */
                if (internals->active_slave_count < 1) {
                        /* If first active slave, then change link status */
                        bonded_eth_dev->data->dev_link.link_status =
                                                                RTE_ETH_LINK_UP;
                        internals->current_primary_port = port_id;
                        lsc_flag = 1;

                        mac_address_slaves_update(bonded_eth_dev);
                }

                activate_slave(bonded_eth_dev, port_id);

                /* If the user has defined the primary port then default to
                 * using it.
                 */
                if (internals->user_defined_primary_port &&
                                internals->primary_port == port_id)
                        bond_ethdev_primary_set(internals, port_id);
        } else {
                if (active_pos == internals->active_slave_count)
                        goto link_update;

                /* Remove from active slave list */
                deactivate_slave(bonded_eth_dev, port_id);

                if (internals->active_slave_count < 1)
                        lsc_flag = 1;

                /* Update primary id, take first active slave from list or if none
                 * available set to -1 */
                if (port_id == internals->current_primary_port) {
                        if (internals->active_slave_count > 0)
                                bond_ethdev_primary_set(internals,
                                                internals->active_slaves[0]);
                        else
                                internals->current_primary_port = internals->primary_port;
                        mac_address_slaves_update(bonded_eth_dev);
                }
        }

link_update:
        /**
         * Update bonded device link properties after any change to active
         * slaves
         */
        bond_ethdev_link_update(bonded_eth_dev, 0);

        if (lsc_flag) {
                /* Cancel any possible outstanding interrupts if delays are enabled */
                if (internals->link_up_delay_ms > 0 ||
                        internals->link_down_delay_ms > 0)
                        rte_eal_alarm_cancel(bond_ethdev_delayed_lsc_propagation,
                                        bonded_eth_dev);

                if (bonded_eth_dev->data->dev_link.link_status) {
                        if (internals->link_up_delay_ms > 0)
                                rte_eal_alarm_set(internals->link_up_delay_ms * 1000,
                                                bond_ethdev_delayed_lsc_propagation,
                                                (void *)bonded_eth_dev);
                        else
                                rte_eth_dev_callback_process(bonded_eth_dev,
                                                RTE_ETH_EVENT_INTR_LSC,
                                                NULL);

                } else {
                        if (internals->link_down_delay_ms > 0)
                                rte_eal_alarm_set(internals->link_down_delay_ms * 1000,
                                                bond_ethdev_delayed_lsc_propagation,
                                                (void *)bonded_eth_dev);
                        else
                                rte_eth_dev_callback_process(bonded_eth_dev,
                                                RTE_ETH_EVENT_INTR_LSC,
                                                NULL);
                }
        }

        rte_spinlock_unlock(&internals->lsc_lock);

        return rc;
}

static int
bond_ethdev_rss_reta_update(struct rte_eth_dev *dev,
                struct rte_eth_rss_reta_entry64 *reta_conf, uint16_t reta_size)
{
        unsigned i, j;
        int result = 0;
        int slave_reta_size;
        unsigned reta_count;
        struct bond_dev_private *internals = dev->data->dev_private;

        if (reta_size != internals->reta_size)
                return -EINVAL;

         /* Copy RETA table */
        reta_count = (reta_size + RTE_ETH_RETA_GROUP_SIZE - 1) /
                        RTE_ETH_RETA_GROUP_SIZE;

        for (i = 0; i < reta_count; i++) {
                internals->reta_conf[i].mask = reta_conf[i].mask;
                for (j = 0; j < RTE_ETH_RETA_GROUP_SIZE; j++)
                        if ((reta_conf[i].mask >> j) & 0x01)
                                internals->reta_conf[i].reta[j] = reta_conf[i].reta[j];
        }

        /* Fill rest of array */
        for (; i < RTE_DIM(internals->reta_conf); i += reta_count)
                memcpy(&internals->reta_conf[i], &internals->reta_conf[0],
                                sizeof(internals->reta_conf[0]) * reta_count);

        /* Propagate RETA over slaves */
        for (i = 0; i < internals->slave_count; i++) {
                slave_reta_size = internals->slaves[i].reta_size;
                result = rte_eth_dev_rss_reta_update(internals->slaves[i].port_id,
                                &internals->reta_conf[0], slave_reta_size);
                if (result < 0)
                        return result;
        }

        return 0;