// SPDX-License-Identifier: GPL-2.0-or-later /* * drivers/net/team/team_mode_roundrobin.c - Round-robin mode for team * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com> */ #include <linux/kernel.h> #include <linux/types.h> #include <linux/module.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/netdevice.h> #include <linux/if_team.h> struct rr_priv { unsigned int sent_packets; }; static struct rr_priv *rr_priv(struct team *team) { return (struct rr_priv *) &team->mode_priv; } static bool rr_transmit(struct team *team, struct sk_buff *skb) { struct team_port *port; int port_index; port_index = team_num_to_port_index(team, rr_priv(team)->sent_packets++); 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 rr_mode_ops = { .transmit = rr_transmit, .port_enter = team_modeop_port_enter, .port_change_dev_addr = team_modeop_port_change_dev_addr, }; static const struct team_mode rr_mode = { .kind = "roundrobin", .owner = THIS_MODULE, .priv_size = sizeof(struct rr_priv), .ops = &rr_mode_ops, .lag_tx_type = NETDEV_LAG_TX_TYPE_ROUNDROBIN, }; static int __init rr_init_module(void) { return team_mode_register(&rr_mode); } static void __exit rr_cleanup_module(void) { team_mode_unregister(&rr_mode); } module_init(rr_init_module); module_exit(rr_cleanup_module); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); MODULE_DESCRIPTION("Round-robin mode for team"); MODULE_ALIAS_TEAM_MODE("roundrobin");