/* * drivers/net/team/team_mode_random.c - Random mode for team * Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ #include <linux/kernel.h> #include <linux/types.h> #include <linux/module.h> #include <linux/init.h> #include <linux/skbuff.h> #include <linux/if_team.h> static bool rnd_transmit(struct team *team, struct sk_buff *skb) { struct team_port *port; int port_index; port_index = prandom_u32_max(team->en_port_count); port = team_get_port_by_index_rcu(team, port_index); if (unlikely(!port)) goto drop; port = team_get_first_port_txable_rcu(team, port); if (unlikely(!port)) goto drop; if (team_dev_queue_xmit(team, port, skb)) return false; return true; drop: dev_kfree_skb_any(skb); return false; } static const struct team_mode_ops rnd_mode_ops = { .transmit = rnd_transmit, .port_enter = team_modeop_port_enter, .port_change_dev_addr = team_modeop_port_change_dev_addr, }; static const struct team_mode rnd_mode = { .kind = "random", .owner = THIS_MODULE, .ops = &rnd_mode_ops, .lag_tx_type = NETDEV_LAG_TX_TYPE_RANDOM, }; static int __init rnd_init_module(void) { return team_mode_register(&rnd_mode); } static void __exit rnd_cleanup_module(void) { team_mode_unregister(&rnd_mode); } module_init(rnd_init_module); module_exit(rnd_cleanup_module); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>"); MODULE_DESCRIPTION("Random mode for team"); MODULE_ALIAS_TEAM_MODE("random");