2 * net/drivers/team/team_mode_roundrobin.c - Round-robin mode for team
3 * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
11 #include <linux/kernel.h>
12 #include <linux/types.h>
13 #include <linux/module.h>
14 #include <linux/init.h>
15 #include <linux/errno.h>
16 #include <linux/netdevice.h>
17 #include <linux/if_team.h>
20 unsigned int sent_packets
;
23 static struct rr_priv
*rr_priv(struct team
*team
)
25 return (struct rr_priv
*) &team
->mode_priv
;
28 static struct team_port
*__get_first_port_up(struct team
*team
,
29 struct team_port
*port
)
31 struct team_port
*cur
;
36 list_for_each_entry_continue_rcu(cur
, &team
->port_list
, list
)
39 list_for_each_entry_rcu(cur
, &team
->port_list
, list
) {
48 static bool rr_transmit(struct team
*team
, struct sk_buff
*skb
)
50 struct team_port
*port
;
53 port_index
= rr_priv(team
)->sent_packets
++ % team
->en_port_count
;
54 port
= team_get_port_by_index_rcu(team
, port_index
);
55 port
= __get_first_port_up(team
, port
);
59 if (dev_queue_xmit(skb
))
64 dev_kfree_skb_any(skb
);
68 static int rr_port_enter(struct team
*team
, struct team_port
*port
)
70 return team_port_set_team_mac(port
);
73 static void rr_port_change_mac(struct team
*team
, struct team_port
*port
)
75 team_port_set_team_mac(port
);
78 static const struct team_mode_ops rr_mode_ops
= {
79 .transmit
= rr_transmit
,
80 .port_enter
= rr_port_enter
,
81 .port_change_mac
= rr_port_change_mac
,
84 static const struct team_mode rr_mode
= {
87 .priv_size
= sizeof(struct rr_priv
),
91 static int __init
rr_init_module(void)
93 return team_mode_register(&rr_mode
);
96 static void __exit
rr_cleanup_module(void)
98 team_mode_unregister(&rr_mode
);
101 module_init(rr_init_module
);
102 module_exit(rr_cleanup_module
);
104 MODULE_LICENSE("GPL v2");
105 MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
106 MODULE_DESCRIPTION("Round-robin mode for team");
107 MODULE_ALIAS("team-mode-roundrobin");