bump version to 12.2.12-pve1

[ceph.git] / ceph / src / dpdk / drivers / net / bonding / rte_eth_bond_api.c

/*-
 *   BSD LICENSE
 *
 *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions
 *   are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in
 *       the documentation and/or other materials provided with the
 *       distribution.
 *     * Neither the name of Intel Corporation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <string.h>

#include <rte_mbuf.h>
#include <rte_malloc.h>
#include <rte_ethdev.h>
#include <rte_tcp.h>

#include "rte_eth_bond.h"
#include "rte_eth_bond_private.h"
#include "rte_eth_bond_8023ad_private.h"

#define DEFAULT_POLLING_INTERVAL_10_MS (10)

const char pmd_bond_driver_name[] = "rte_bond_pmd";

int
check_for_bonded_ethdev(const struct rte_eth_dev *eth_dev)
{
        /* Check valid pointer */
        if (eth_dev->data->drv_name == NULL)
                return -1;

        /* return 0 if driver name matches */
        return eth_dev->data->drv_name != pmd_bond_driver_name;
}

int
valid_bonded_port_id(uint8_t port_id)
{
        RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -1);
        return check_for_bonded_ethdev(&rte_eth_devices[port_id]);
}

int
valid_slave_port_id(uint8_t port_id)
{
        RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -1);

        /* Verify that port_id refers to a non bonded port */
        if (check_for_bonded_ethdev(&rte_eth_devices[port_id]) == 0)
                return -1;

        return 0;
}

void
activate_slave(struct rte_eth_dev *eth_dev, uint8_t port_id)
{
        struct bond_dev_private *internals = eth_dev->data->dev_private;
        uint8_t active_count = internals->active_slave_count;

        if (internals->mode == BONDING_MODE_8023AD)
                bond_mode_8023ad_activate_slave(eth_dev, port_id);

        if (internals->mode == BONDING_MODE_TLB
                        || internals->mode == BONDING_MODE_ALB) {

                internals->tlb_slaves_order[active_count] = port_id;
        }

        RTE_ASSERT(internals->active_slave_count <
                        (RTE_DIM(internals->active_slaves) - 1));

        internals->active_slaves[internals->active_slave_count] = port_id;
        internals->active_slave_count++;

        if (internals->mode == BONDING_MODE_TLB)
                bond_tlb_activate_slave(internals);
        if (internals->mode == BONDING_MODE_ALB)
                bond_mode_alb_client_list_upd(eth_dev);
}

void
deactivate_slave(struct rte_eth_dev *eth_dev, uint8_t port_id)
{
        uint8_t slave_pos;
        struct bond_dev_private *internals = eth_dev->data->dev_private;
        uint8_t active_count = internals->active_slave_count;

        if (internals->mode == BONDING_MODE_8023AD) {
                bond_mode_8023ad_stop(eth_dev);
                bond_mode_8023ad_deactivate_slave(eth_dev, port_id);
        } else if (internals->mode == BONDING_MODE_TLB
                        || internals->mode == BONDING_MODE_ALB)
                bond_tlb_disable(internals);

        slave_pos = find_slave_by_id(internals->active_slaves, active_count,
                        port_id);

        /* If slave was not at the end of the list
         * shift active slaves up active array list */
        if (slave_pos < active_count) {
                active_count--;
                memmove(internals->active_slaves + slave_pos,
                                internals->active_slaves + slave_pos + 1,
                                (active_count - slave_pos) *
                                        sizeof(internals->active_slaves[0]));
        }

        RTE_ASSERT(active_count < RTE_DIM(internals->active_slaves));
        internals->active_slave_count = active_count;

        if (eth_dev->data->dev_started) {
                if (internals->mode == BONDING_MODE_8023AD) {
                        bond_mode_8023ad_start(eth_dev);
                } else if (internals->mode == BONDING_MODE_TLB) {
                        bond_tlb_enable(internals);
                } else if (internals->mode == BONDING_MODE_ALB) {
                        bond_tlb_enable(internals);
                        bond_mode_alb_client_list_upd(eth_dev);
                }
        }
}

uint8_t
number_of_sockets(void)
{
        int sockets = 0;
        int i;
        const struct rte_memseg *ms = rte_eal_get_physmem_layout();

        for (i = 0; ((i < RTE_MAX_MEMSEG) && (ms[i].addr != NULL)); i++) {
                if (sockets < ms[i].socket_id)
                        sockets = ms[i].socket_id;
        }

        /* Number of sockets = maximum socket_id + 1 */
        return ++sockets;
}

int
rte_eth_bond_create(const char *name, uint8_t mode, uint8_t socket_id)
{
        struct bond_dev_private *internals = NULL;
        struct rte_eth_dev *eth_dev = NULL;
        uint32_t vlan_filter_bmp_size;

        /* now do all data allocation - for eth_dev structure, dummy pci driver
         * and internal (private) data
         */

        if (name == NULL) {
                RTE_BOND_LOG(ERR, "Invalid name specified");
                goto err;
        }

        if (socket_id >= number_of_sockets()) {
                RTE_BOND_LOG(ERR,
                                "Invalid socket id specified to create bonded device on.");
                goto err;
        }

        internals = rte_zmalloc_socket(name, sizeof(*internals), 0, socket_id);
        if (internals == NULL) {
                RTE_BOND_LOG(ERR, "Unable to malloc internals on socket");
                goto err;
        }

        /* reserve an ethdev entry */
        eth_dev = rte_eth_dev_allocate(name);
        if (eth_dev == NULL) {
                RTE_BOND_LOG(ERR, "Unable to allocate rte_eth_dev");
                goto err;
        }

        eth_dev->data->dev_private = internals;
        eth_dev->data->nb_rx_queues = (uint16_t)1;
        eth_dev->data->nb_tx_queues = (uint16_t)1;

        TAILQ_INIT(&(eth_dev->link_intr_cbs));

        eth_dev->data->dev_link.link_status = ETH_LINK_DOWN;

        eth_dev->data->mac_addrs = rte_zmalloc_socket(name, ETHER_ADDR_LEN, 0,
                        socket_id);
        if (eth_dev->data->mac_addrs == NULL) {
                RTE_BOND_LOG(ERR, "Unable to malloc mac_addrs");
                goto err;
        }

        eth_dev->data->dev_started = 0;
        eth_dev->data->promiscuous = 0;
        eth_dev->data->scattered_rx = 0;
        eth_dev->data->all_multicast = 0;

        eth_dev->dev_ops = &default_dev_ops;
        eth_dev->data->dev_flags = RTE_ETH_DEV_INTR_LSC |
                RTE_ETH_DEV_DETACHABLE;
        eth_dev->driver = NULL;
        eth_dev->data->kdrv = RTE_KDRV_NONE;
        eth_dev->data->drv_name = pmd_bond_driver_name;
        eth_dev->data->numa_node =  socket_id;

        rte_spinlock_init(&internals->lock);

        internals->port_id = eth_dev->data->port_id;
        internals->mode = BONDING_MODE_INVALID;
        internals->current_primary_port = RTE_MAX_ETHPORTS + 1;
        internals->balance_xmit_policy = BALANCE_XMIT_POLICY_LAYER2;
        internals->xmit_hash = xmit_l2_hash;
        internals->user_defined_mac = 0;
        internals->link_props_set = 0;

        internals->link_status_polling_enabled = 0;

        internals->link_status_polling_interval_ms = DEFAULT_POLLING_INTERVAL_10_MS;
        internals->link_down_delay_ms = 0;
        internals->link_up_delay_ms = 0;

        internals->slave_count = 0;
        internals->active_slave_count = 0;
        internals->rx_offload_capa = 0;
        internals->tx_offload_capa = 0;
        internals->candidate_max_rx_pktlen = 0;
        internals->max_rx_pktlen = 0;

        /* Initially allow to choose any offload type */
        internals->flow_type_rss_offloads = ETH_RSS_PROTO_MASK;

        memset(internals->active_slaves, 0, sizeof(internals->active_slaves));
        memset(internals->slaves, 0, sizeof(internals->slaves));

        /* Set mode 4 default configuration */
        bond_mode_8023ad_setup(eth_dev, NULL);
        if (bond_ethdev_mode_set(eth_dev, mode)) {
                RTE_BOND_LOG(ERR, "Failed to set bonded device %d mode too %d",
                                 eth_dev->data->port_id, mode);
                goto err;
        }

        vlan_filter_bmp_size =
                rte_bitmap_get_memory_footprint(ETHER_MAX_VLAN_ID + 1);
        internals->vlan_filter_bmpmem = rte_malloc(name, vlan_filter_bmp_size,
                                                   RTE_CACHE_LINE_SIZE);
        if (internals->vlan_filter_bmpmem == NULL) {
                RTE_BOND_LOG(ERR,
                             "Failed to allocate vlan bitmap for bonded device %u\n",
                             eth_dev->data->port_id);
                goto err;
        }

        internals->vlan_filter_bmp = rte_bitmap_init(ETHER_MAX_VLAN_ID + 1,
                        internals->vlan_filter_bmpmem, vlan_filter_bmp_size);
        if (internals->vlan_filter_bmp == NULL) {
                RTE_BOND_LOG(ERR,
                             "Failed to init vlan bitmap for bonded device %u\n",
                             eth_dev->data->port_id);
                rte_free(internals->vlan_filter_bmpmem);
                goto err;
        }

        return eth_dev->data->port_id;

err:
        rte_free(internals);
        if (eth_dev != NULL) {
                rte_free(eth_dev->data->mac_addrs);
                rte_eth_dev_release_port(eth_dev);
        }
        return -1;
}

int
rte_eth_bond_free(const char *name)
{
        struct rte_eth_dev *eth_dev = NULL;
        struct bond_dev_private *internals;

        /* now free all data allocation - for eth_dev structure,
         * dummy pci driver and internal (private) data
         */

        /* find an ethdev entry */
        eth_dev = rte_eth_dev_allocated(name);
        if (eth_dev == NULL)
                return -ENODEV;

        internals = eth_dev->data->dev_private;
        if (internals->slave_count != 0)
                return -EBUSY;

        if (eth_dev->data->dev_started == 1) {
                bond_ethdev_stop(eth_dev);
                bond_ethdev_close(eth_dev);
        }

        eth_dev->dev_ops = NULL;
        eth_dev->rx_pkt_burst = NULL;
        eth_dev->tx_pkt_burst = NULL;

        internals = eth_dev->data->dev_private;
        rte_bitmap_free(internals->vlan_filter_bmp);
        rte_free(internals->vlan_filter_bmpmem);
        rte_free(eth_dev->data->dev_private);
        rte_free(eth_dev->data->mac_addrs);

        rte_eth_dev_release_port(eth_dev);

        return 0;
}

static int
slave_vlan_filter_set(uint8_t bonded_port_id, uint8_t slave_port_id)
{
        struct rte_eth_dev *bonded_eth_dev;
        struct bond_dev_private *internals;
        int found;
        int res = 0;
        uint64_t slab = 0;
        uint32_t pos = 0;
        uint16_t first;

        bonded_eth_dev = &rte_eth_devices[bonded_port_id];
        if (bonded_eth_dev->data->dev_conf.rxmode.hw_vlan_filter == 0)
                return 0;

        internals = bonded_eth_dev->data->dev_private;
        found = rte_bitmap_scan(internals->vlan_filter_bmp, &pos, &slab);
        first = pos;

        if (!found)
                return 0;

        do {
                uint32_t i;
                uint64_t mask;

                for (i = 0, mask = 1;
                     i < RTE_BITMAP_SLAB_BIT_SIZE;
                     i ++, mask <<= 1) {
                        if (unlikely(slab & mask))
                                res = rte_eth_dev_vlan_filter(slave_port_id,
                                                              (uint16_t)pos, 1);
                }
                found = rte_bitmap_scan(internals->vlan_filter_bmp,
                                        &pos, &slab);
        } while (found && first != pos && res == 0);

        return res;
}

static int
__eth_bond_slave_add_lock_free(uint8_t bonded_port_id, uint8_t slave_port_id)
{
        struct rte_eth_dev *bonded_eth_dev, *slave_eth_dev;
        struct bond_dev_private *internals;
        struct rte_eth_link link_props;
        struct rte_eth_dev_info dev_info;

        if (valid_slave_port_id(slave_port_id) != 0)
                return -1;

        bonded_eth_dev = &rte_eth_devices[bonded_port_id];
        internals = bonded_eth_dev->data->dev_private;

        slave_eth_dev = &rte_eth_devices[slave_port_id];
        if (slave_eth_dev->data->dev_flags & RTE_ETH_DEV_BONDED_SLAVE) {
                RTE_BOND_LOG(ERR, "Slave device is already a slave of a bonded device");
                return -1;
        }

        /* Add slave details to bonded device */
        slave_eth_dev->data->dev_flags |= RTE_ETH_DEV_BONDED_SLAVE;

        rte_eth_dev_info_get(slave_port_id, &dev_info);
        if (dev_info.max_rx_pktlen < internals->max_rx_pktlen) {
                RTE_BOND_LOG(ERR, "Slave (port %u) max_rx_pktlen too small",
                             slave_port_id);
                return -1;
        }

        slave_add(internals, slave_eth_dev);

        /* We need to store slaves reta_size to be able to synchronize RETA for all
         * slave devices even if its sizes are different.
         */
        internals->slaves[internals->slave_count].reta_size = dev_info.reta_size;

        if (internals->slave_count < 1) {
                /* if MAC is not user defined then use MAC of first slave add to
                 * bonded device */
                if (!internals->user_defined_mac)
                        mac_address_set(bonded_eth_dev, slave_eth_dev->data->mac_addrs);

                /* Inherit eth dev link properties from first slave */
                link_properties_set(bonded_eth_dev,
                                &(slave_eth_dev->data->dev_link));

                /* Make primary slave */
                internals->primary_port = slave_port_id;
                internals->current_primary_port = slave_port_id;

                /* Inherit queues settings from first slave */
                internals->nb_rx_queues = slave_eth_dev->data->nb_rx_queues;
                internals->nb_tx_queues = slave_eth_dev->data->nb_tx_queues;

                internals->reta_size = dev_info.reta_size;

                /* Take the first dev's offload capabilities */
                internals->rx_offload_capa = dev_info.rx_offload_capa;
                internals->tx_offload_capa = dev_info.tx_offload_capa;
                internals->flow_type_rss_offloads = dev_info.flow_type_rss_offloads;

                /* Inherit first slave's max rx packet size */
                internals->candidate_max_rx_pktlen = dev_info.max_rx_pktlen;

        } else {
                internals->rx_offload_capa &= dev_info.rx_offload_capa;
                internals->tx_offload_capa &= dev_info.tx_offload_capa;
                internals->flow_type_rss_offloads &= dev_info.flow_type_rss_offloads;

                /* RETA size is GCD of all slaves RETA sizes, so, if all sizes will be
                 * the power of 2, the lower one is GCD
                 */
                if (internals->reta_size > dev_info.reta_size)
                        internals->reta_size = dev_info.reta_size;

                if (!internals->max_rx_pktlen &&
                    dev_info.max_rx_pktlen < internals->candidate_max_rx_pktlen)
                        internals->candidate_max_rx_pktlen = dev_info.max_rx_pktlen;
        }

        bonded_eth_dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf &=
                        internals->flow_type_rss_offloads;

        internals->slave_count++;

        /* Update all slave devices MACs*/
        mac_address_slaves_update(bonded_eth_dev);

        if (bonded_eth_dev->data->dev_started) {
                if (slave_configure(bonded_eth_dev, slave_eth_dev) != 0) {
                        slave_eth_dev->data->dev_flags &= (~RTE_ETH_DEV_BONDED_SLAVE);
                        RTE_BOND_LOG(ERR, "rte_bond_slaves_configure: port=%d",
                                        slave_port_id);
                        return -1;
                }
        }

        /* Register link status change callback with bonded device pointer as
         * argument*/
        rte_eth_dev_callback_register(slave_port_id, RTE_ETH_EVENT_INTR_LSC,
                        bond_ethdev_lsc_event_callback, &bonded_eth_dev->data->port_id);

        /* If bonded device is started then we can add the slave to our active
         * slave array */
        if (bonded_eth_dev->data->dev_started) {
                rte_eth_link_get_nowait(slave_port_id, &link_props);

                 if (link_props.link_status == ETH_LINK_UP) {
                        if (internals->active_slave_count == 0 &&
                            !internals->user_defined_primary_port)
                                bond_ethdev_primary_set(internals,
                                                        slave_port_id);

                        if (find_slave_by_id(internals->active_slaves,
                                             internals->active_slave_count,
                                             slave_port_id) == internals->active_slave_count)
                                activate_slave(bonded_eth_dev, slave_port_id);
                }
        }

        slave_vlan_filter_set(bonded_port_id, slave_port_id);

        return 0;

}

int
rte_eth_bond_slave_add(uint8_t bonded_port_id, uint8_t slave_port_id)
{
        struct rte_eth_dev *bonded_eth_dev;
        struct bond_dev_private *internals;

        int retval;

        /* Verify that port id's are valid bonded and slave ports */
        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        bonded_eth_dev = &rte_eth_devices[bonded_port_id];
        internals = bonded_eth_dev->data->dev_private;

        rte_spinlock_lock(&internals->lock);

        retval = __eth_bond_slave_add_lock_free(bonded_port_id, slave_port_id);

        rte_spinlock_unlock(&internals->lock);

        return retval;
}

static int
__eth_bond_slave_remove_lock_free(uint8_t bonded_port_id, uint8_t slave_port_id)
{
        struct rte_eth_dev *bonded_eth_dev;
        struct bond_dev_private *internals;
        struct rte_eth_dev *slave_eth_dev;
        int i, slave_idx;

        if (valid_slave_port_id(slave_port_id) != 0)
                return -1;

        bonded_eth_dev = &rte_eth_devices[bonded_port_id];
        internals = bonded_eth_dev->data->dev_private;

        /* first remove from active slave list */
        slave_idx = find_slave_by_id(internals->active_slaves,
                internals->active_slave_count, slave_port_id);

        if (slave_idx < internals->active_slave_count)
                deactivate_slave(bonded_eth_dev, slave_port_id);

        slave_idx = -1;
        /* now find in slave list */
        for (i = 0; i < internals->slave_count; i++)
                if (internals->slaves[i].port_id == slave_port_id) {
                        slave_idx = i;
                        break;
                }

        if (slave_idx < 0) {
                RTE_BOND_LOG(ERR, "Couldn't find slave in port list, slave count %d",
                                internals->slave_count);
                return -1;
        }

        /* Un-register link status change callback with bonded device pointer as
         * argument*/
        rte_eth_dev_callback_unregister(slave_port_id, RTE_ETH_EVENT_INTR_LSC,
                        bond_ethdev_lsc_event_callback,
                        &rte_eth_devices[bonded_port_id].data->port_id);

        /* Restore original MAC address of slave device */
        mac_address_set(&rte_eth_devices[slave_port_id],
                        &(internals->slaves[slave_idx].persisted_mac_addr));

        slave_eth_dev = &rte_eth_devices[slave_port_id];
        slave_remove(internals, slave_eth_dev);
        slave_eth_dev->data->dev_flags &= (~RTE_ETH_DEV_BONDED_SLAVE);

        /*  first slave in the active list will be the primary by default,
         *  otherwise use first device in list */
        if (internals->current_primary_port == slave_port_id) {
                if (internals->active_slave_count > 0)
                        internals->current_primary_port = internals->active_slaves[0];
                else if (internals->slave_count > 0)
                        internals->current_primary_port = internals->slaves[0].port_id;
                else
                        internals->primary_port = 0;
        }

        if (internals->active_slave_count < 1) {
                /* reset device link properties as no slaves are active */
                link_properties_reset(&rte_eth_devices[bonded_port_id]);

                /* if no slaves are any longer attached to bonded device and MAC is not
                 * user defined then clear MAC of bonded device as it will be reset
                 * when a new slave is added */
                if (internals->slave_count < 1 && !internals->user_defined_mac)
                        memset(rte_eth_devices[bonded_port_id].data->mac_addrs, 0,
                                        sizeof(*(rte_eth_devices[bonded_port_id].data->mac_addrs)));
        }
        if (internals->slave_count == 0) {
                internals->rx_offload_capa = 0;
                internals->tx_offload_capa = 0;
                internals->flow_type_rss_offloads = ETH_RSS_PROTO_MASK;
                internals->reta_size = 0;
                internals->candidate_max_rx_pktlen = 0;
                internals->max_rx_pktlen = 0;
        }
        return 0;
}

int
rte_eth_bond_slave_remove(uint8_t bonded_port_id, uint8_t slave_port_id)
{
        struct rte_eth_dev *bonded_eth_dev;
        struct bond_dev_private *internals;
        int retval;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        bonded_eth_dev = &rte_eth_devices[bonded_port_id];
        internals = bonded_eth_dev->data->dev_private;

        rte_spinlock_lock(&internals->lock);

        retval = __eth_bond_slave_remove_lock_free(bonded_port_id, slave_port_id);

        rte_spinlock_unlock(&internals->lock);

        return retval;
}

int
rte_eth_bond_mode_set(uint8_t bonded_port_id, uint8_t mode)
{
        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        return bond_ethdev_mode_set(&rte_eth_devices[bonded_port_id], mode);
}

int
rte_eth_bond_mode_get(uint8_t bonded_port_id)
{
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        internals = rte_eth_devices[bonded_port_id].data->dev_private;

        return internals->mode;
}

int
rte_eth_bond_primary_set(uint8_t bonded_port_id, uint8_t slave_port_id)
{
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        if (valid_slave_port_id(slave_port_id) != 0)
                return -1;

        internals =  rte_eth_devices[bonded_port_id].data->dev_private;

        internals->user_defined_primary_port = 1;
        internals->primary_port = slave_port_id;

        bond_ethdev_primary_set(internals, slave_port_id);

        return 0;
}

int
rte_eth_bond_primary_get(uint8_t bonded_port_id)
{
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        internals = rte_eth_devices[bonded_port_id].data->dev_private;

        if (internals->slave_count < 1)
                return -1;

        return internals->current_primary_port;
}

int
rte_eth_bond_slaves_get(uint8_t bonded_port_id, uint8_t slaves[], uint8_t len)
{
        struct bond_dev_private *internals;
        uint8_t i;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        if (slaves == NULL)
                return -1;

        internals = rte_eth_devices[bonded_port_id].data->dev_private;

        if (internals->slave_count > len)
                return -1;

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

        return internals->slave_count;
}

int
rte_eth_bond_active_slaves_get(uint8_t bonded_port_id, uint8_t slaves[],
                uint8_t len)
{
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        if (slaves == NULL)
                return -1;

        internals = rte_eth_devices[bonded_port_id].data->dev_private;

        if (internals->active_slave_count > len)
                return -1;

        memcpy(slaves, internals->active_slaves, internals->active_slave_count);

        return internals->active_slave_count;
}

int
rte_eth_bond_mac_address_set(uint8_t bonded_port_id,
                struct ether_addr *mac_addr)
{
        struct rte_eth_dev *bonded_eth_dev;
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        bonded_eth_dev = &rte_eth_devices[bonded_port_id];
        internals = bonded_eth_dev->data->dev_private;

        /* Set MAC Address of Bonded Device */
        if (mac_address_set(bonded_eth_dev, mac_addr))
                return -1;

        internals->user_defined_mac = 1;

        /* Update all slave devices MACs*/
        if (internals->slave_count > 0)
                return mac_address_slaves_update(bonded_eth_dev);

        return 0;
}

int
rte_eth_bond_mac_address_reset(uint8_t bonded_port_id)
{
        struct rte_eth_dev *bonded_eth_dev;
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        bonded_eth_dev = &rte_eth_devices[bonded_port_id];
        internals = bonded_eth_dev->data->dev_private;

        internals->user_defined_mac = 0;

        if (internals->slave_count > 0) {
                /* Set MAC Address of Bonded Device */
                if (mac_address_set(bonded_eth_dev,
                                &internals->slaves[internals->primary_port].persisted_mac_addr)
                                != 0) {
                        RTE_BOND_LOG(ERR, "Failed to set MAC address on bonded device");
                        return -1;
                }
                /* Update all slave devices MAC addresses */
                return mac_address_slaves_update(bonded_eth_dev);
        }
        /* No need to update anything as no slaves present */
        return 0;
}

int
rte_eth_bond_xmit_policy_set(uint8_t bonded_port_id, uint8_t policy)
{
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        internals = rte_eth_devices[bonded_port_id].data->dev_private;

        switch (policy) {
        case BALANCE_XMIT_POLICY_LAYER2:
                internals->balance_xmit_policy = policy;
                internals->xmit_hash = xmit_l2_hash;
                break;
        case BALANCE_XMIT_POLICY_LAYER23:
                internals->balance_xmit_policy = policy;
                internals->xmit_hash = xmit_l23_hash;
                break;
        case BALANCE_XMIT_POLICY_LAYER34:
                internals->balance_xmit_policy = policy;
                internals->xmit_hash = xmit_l34_hash;
                break;

        default:
                return -1;
        }
        return 0;
}

int
rte_eth_bond_xmit_policy_get(uint8_t bonded_port_id)
{
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        internals = rte_eth_devices[bonded_port_id].data->dev_private;

        return internals->balance_xmit_policy;
}

int
rte_eth_bond_link_monitoring_set(uint8_t bonded_port_id, uint32_t internal_ms)
{
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        internals = rte_eth_devices[bonded_port_id].data->dev_private;
        internals->link_status_polling_interval_ms = internal_ms;

        return 0;
}

int
rte_eth_bond_link_monitoring_get(uint8_t bonded_port_id)
{
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        internals = rte_eth_devices[bonded_port_id].data->dev_private;

        return internals->link_status_polling_interval_ms;
}

int
rte_eth_bond_link_down_prop_delay_set(uint8_t bonded_port_id, uint32_t delay_ms)

{
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        internals = rte_eth_devices[bonded_port_id].data->dev_private;
        internals->link_down_delay_ms = delay_ms;

        return 0;
}

int
rte_eth_bond_link_down_prop_delay_get(uint8_t bonded_port_id)
{
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        internals = rte_eth_devices[bonded_port_id].data->dev_private;

        return internals->link_down_delay_ms;
}

int
rte_eth_bond_link_up_prop_delay_set(uint8_t bonded_port_id, uint32_t delay_ms)

{
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        internals = rte_eth_devices[bonded_port_id].data->dev_private;
        internals->link_up_delay_ms = delay_ms;

        return 0;
}

int
rte_eth_bond_link_up_prop_delay_get(uint8_t bonded_port_id)
{
        struct bond_dev_private *internals;

        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;

        internals = rte_eth_devices[bonded_port_id].data->dev_private;

        return internals->link_up_delay_ms;
}