1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * drivers/net/team/team_mode_broadcast.c - Broadcast mode for team |
4 | * Copyright (c) 2012 Jiri Pirko <jpirko@redhat.com> |
5 | */ |
6 | |
7 | #include <linux/kernel.h> |
8 | #include <linux/types.h> |
9 | #include <linux/module.h> |
10 | #include <linux/init.h> |
11 | #include <linux/netdevice.h> |
12 | #include <linux/if_team.h> |
13 | |
14 | static bool bc_transmit(struct team *team, struct sk_buff *skb) |
15 | { |
16 | struct team_port *cur; |
17 | struct team_port *last = NULL; |
18 | struct sk_buff *skb2; |
19 | bool ret; |
20 | bool sum_ret = false; |
21 | |
22 | list_for_each_entry_rcu(cur, &team->port_list, list) { |
23 | if (team_port_txable(port: cur)) { |
24 | if (last) { |
25 | skb2 = skb_clone(skb, GFP_ATOMIC); |
26 | if (skb2) { |
27 | ret = !team_dev_queue_xmit(team, port: last, |
28 | skb: skb2); |
29 | if (!sum_ret) |
30 | sum_ret = ret; |
31 | } |
32 | } |
33 | last = cur; |
34 | } |
35 | } |
36 | if (last) { |
37 | ret = !team_dev_queue_xmit(team, port: last, skb); |
38 | if (!sum_ret) |
39 | sum_ret = ret; |
40 | } |
41 | return sum_ret; |
42 | } |
43 | |
44 | static const struct team_mode_ops bc_mode_ops = { |
45 | .transmit = bc_transmit, |
46 | .port_enter = team_modeop_port_enter, |
47 | .port_change_dev_addr = team_modeop_port_change_dev_addr, |
48 | }; |
49 | |
50 | static const struct team_mode bc_mode = { |
51 | .kind = "broadcast" , |
52 | .owner = THIS_MODULE, |
53 | .ops = &bc_mode_ops, |
54 | .lag_tx_type = NETDEV_LAG_TX_TYPE_BROADCAST, |
55 | }; |
56 | |
57 | static int __init bc_init_module(void) |
58 | { |
59 | return team_mode_register(mode: &bc_mode); |
60 | } |
61 | |
62 | static void __exit bc_cleanup_module(void) |
63 | { |
64 | team_mode_unregister(mode: &bc_mode); |
65 | } |
66 | |
67 | module_init(bc_init_module); |
68 | module_exit(bc_cleanup_module); |
69 | |
70 | MODULE_LICENSE("GPL v2" ); |
71 | MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>" ); |
72 | MODULE_DESCRIPTION("Broadcast mode for team" ); |
73 | MODULE_ALIAS_TEAM_MODE("broadcast" ); |
74 | |