// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * drivers/net/team/team_mode_broadcast.c - Broadcast mode for team
 * Copyright (c) 2012 Jiri Pirko <jpirko@redhat.com>
 */

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/if_team.h>

static bool bc_transmit(struct team *team, struct sk_buff *skb)
{
        struct team_port *cur;
        struct team_port *last = NULL;
        struct sk_buff *skb2;
        bool ret;
        bool sum_ret = false;

        list_for_each_entry_rcu(cur, &team->port_list, list) {
                if (team_port_txable(cur)) {
                        if (last) {
                                skb2 = skb_clone(skb, GFP_ATOMIC);
                                if (skb2) {
                                        ret = !team_dev_queue_xmit(team, last,
                                                                   skb2);
                                        if (!sum_ret)
                                                sum_ret = ret;
                                }
                        }
                        last = cur;
                }
        }
        if (last) {
                ret = !team_dev_queue_xmit(team, last, skb);
                if (!sum_ret)
                        sum_ret = ret;
        }
        return sum_ret;
}

static const struct team_mode_ops bc_mode_ops = {
        .transmit               = bc_transmit,
        .port_enter             = team_modeop_port_enter,
        .port_change_dev_addr   = team_modeop_port_change_dev_addr,
};

static const struct team_mode bc_mode = {
        .kind           = "broadcast",
        .owner          = THIS_MODULE,
        .ops            = &bc_mode_ops,
        .lag_tx_type    = NETDEV_LAG_TX_TYPE_BROADCAST,
};

static int __init bc_init_module(void)
{
        return team_mode_register(&bc_mode);
}

static void __exit bc_cleanup_module(void)
{
        team_mode_unregister(&bc_mode);
}

module_init(bc_init_module);
module_exit(bc_cleanup_module);

MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
MODULE_DESCRIPTION("Broadcast mode for team");
MODULE_ALIAS_TEAM_MODE("broadcast");