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
bc_transmit(struct team * team,struct sk_buff * skb)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(cur)) {
24 if (last) {
25 skb2 = skb_clone(skb, GFP_ATOMIC);
26 if (skb2) {
27 ret = !team_dev_queue_xmit(team, last,
28 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, 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
bc_init_module(void)57 static int __init bc_init_module(void)
58 {
59 return team_mode_register(&bc_mode);
60 }
61
bc_cleanup_module(void)62 static void __exit bc_cleanup_module(void)
63 {
64 team_mode_unregister(&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