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/errno.h>
12 #include <linux/netdevice.h>
13 #include <linux/if_team.h>
14
bc_transmit(struct team * team,struct sk_buff * skb)15 static bool bc_transmit(struct team *team, struct sk_buff *skb)
16 {
17 struct team_port *cur;
18 struct team_port *last = NULL;
19 struct sk_buff *skb2;
20 bool ret;
21 bool sum_ret = false;
22
23 list_for_each_entry_rcu(cur, &team->port_list, list) {
24 if (team_port_txable(cur)) {
25 if (last) {
26 skb2 = skb_clone(skb, GFP_ATOMIC);
27 if (skb2) {
28 ret = !team_dev_queue_xmit(team, last,
29 skb2);
30 if (!sum_ret)
31 sum_ret = ret;
32 }
33 }
34 last = cur;
35 }
36 }
37 if (last) {
38 ret = !team_dev_queue_xmit(team, last, skb);
39 if (!sum_ret)
40 sum_ret = ret;
41 }
42 return sum_ret;
43 }
44
45 static const struct team_mode_ops bc_mode_ops = {
46 .transmit = bc_transmit,
47 .port_enter = team_modeop_port_enter,
48 .port_change_dev_addr = team_modeop_port_change_dev_addr,
49 };
50
51 static const struct team_mode bc_mode = {
52 .kind = "broadcast",
53 .owner = THIS_MODULE,
54 .ops = &bc_mode_ops,
55 .lag_tx_type = NETDEV_LAG_TX_TYPE_BROADCAST,
56 };
57
bc_init_module(void)58 static int __init bc_init_module(void)
59 {
60 return team_mode_register(&bc_mode);
61 }
62
bc_cleanup_module(void)63 static void __exit bc_cleanup_module(void)
64 {
65 team_mode_unregister(&bc_mode);
66 }
67
68 module_init(bc_init_module);
69 module_exit(bc_cleanup_module);
70
71 MODULE_LICENSE("GPL v2");
72 MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
73 MODULE_DESCRIPTION("Broadcast mode for team");
74 MODULE_ALIAS_TEAM_MODE("broadcast");
75