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5fc88991 JP |
1 | /* |
2 | * drivers/net/team/team_mode_broadcast.c - Broadcast mode for team | |
3 | * Copyright (c) 2012 Jiri Pirko <jpirko@redhat.com> | |
4 | * | |
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. | |
9 | */ | |
10 | ||
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> | |
18 | ||
19 | static bool bc_transmit(struct team *team, struct sk_buff *skb) | |
20 | { | |
21 | struct team_port *cur; | |
22 | struct team_port *last = NULL; | |
23 | struct sk_buff *skb2; | |
24 | bool ret; | |
25 | bool sum_ret = false; | |
26 | ||
27 | list_for_each_entry_rcu(cur, &team->port_list, list) { | |
28 | if (team_port_txable(cur)) { | |
29 | if (last) { | |
30 | skb2 = skb_clone(skb, GFP_ATOMIC); | |
31 | if (skb2) { | |
bd2d0837 JP |
32 | ret = team_dev_queue_xmit(team, last, |
33 | skb2); | |
5fc88991 JP |
34 | if (!sum_ret) |
35 | sum_ret = ret; | |
36 | } | |
37 | } | |
38 | last = cur; | |
39 | } | |
40 | } | |
41 | if (last) { | |
bd2d0837 | 42 | ret = team_dev_queue_xmit(team, last, skb); |
5fc88991 JP |
43 | if (!sum_ret) |
44 | sum_ret = ret; | |
45 | } | |
46 | return sum_ret; | |
47 | } | |
48 | ||
49 | static int bc_port_enter(struct team *team, struct team_port *port) | |
50 | { | |
1d76efe1 | 51 | return team_port_set_team_dev_addr(port); |
5fc88991 JP |
52 | } |
53 | ||
1d76efe1 | 54 | static void bc_port_change_dev_addr(struct team *team, struct team_port *port) |
5fc88991 | 55 | { |
1d76efe1 | 56 | team_port_set_team_dev_addr(port); |
5fc88991 JP |
57 | } |
58 | ||
59 | static const struct team_mode_ops bc_mode_ops = { | |
60 | .transmit = bc_transmit, | |
61 | .port_enter = bc_port_enter, | |
1d76efe1 | 62 | .port_change_dev_addr = bc_port_change_dev_addr, |
5fc88991 JP |
63 | }; |
64 | ||
65 | static const struct team_mode bc_mode = { | |
66 | .kind = "broadcast", | |
67 | .owner = THIS_MODULE, | |
68 | .ops = &bc_mode_ops, | |
69 | }; | |
70 | ||
71 | static int __init bc_init_module(void) | |
72 | { | |
73 | return team_mode_register(&bc_mode); | |
74 | } | |
75 | ||
76 | static void __exit bc_cleanup_module(void) | |
77 | { | |
78 | team_mode_unregister(&bc_mode); | |
79 | } | |
80 | ||
81 | module_init(bc_init_module); | |
82 | module_exit(bc_cleanup_module); | |
83 | ||
84 | MODULE_LICENSE("GPL v2"); | |
85 | MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); | |
86 | MODULE_DESCRIPTION("Broadcast mode for team"); | |
87 | MODULE_ALIAS("team-mode-broadcast"); |