1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * drivers/net/team/team_mode_broadcast.c - Broadcast mode for team
4*4882a593Smuzhiyun * Copyright (c) 2012 Jiri Pirko <jpirko@redhat.com>
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #include <linux/kernel.h>
8*4882a593Smuzhiyun #include <linux/types.h>
9*4882a593Smuzhiyun #include <linux/module.h>
10*4882a593Smuzhiyun #include <linux/init.h>
11*4882a593Smuzhiyun #include <linux/errno.h>
12*4882a593Smuzhiyun #include <linux/netdevice.h>
13*4882a593Smuzhiyun #include <linux/if_team.h>
14*4882a593Smuzhiyun
bc_transmit(struct team * team,struct sk_buff * skb)15*4882a593Smuzhiyun static bool bc_transmit(struct team *team, struct sk_buff *skb)
16*4882a593Smuzhiyun {
17*4882a593Smuzhiyun struct team_port *cur;
18*4882a593Smuzhiyun struct team_port *last = NULL;
19*4882a593Smuzhiyun struct sk_buff *skb2;
20*4882a593Smuzhiyun bool ret;
21*4882a593Smuzhiyun bool sum_ret = false;
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun list_for_each_entry_rcu(cur, &team->port_list, list) {
24*4882a593Smuzhiyun if (team_port_txable(cur)) {
25*4882a593Smuzhiyun if (last) {
26*4882a593Smuzhiyun skb2 = skb_clone(skb, GFP_ATOMIC);
27*4882a593Smuzhiyun if (skb2) {
28*4882a593Smuzhiyun ret = !team_dev_queue_xmit(team, last,
29*4882a593Smuzhiyun skb2);
30*4882a593Smuzhiyun if (!sum_ret)
31*4882a593Smuzhiyun sum_ret = ret;
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun }
34*4882a593Smuzhiyun last = cur;
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun }
37*4882a593Smuzhiyun if (last) {
38*4882a593Smuzhiyun ret = !team_dev_queue_xmit(team, last, skb);
39*4882a593Smuzhiyun if (!sum_ret)
40*4882a593Smuzhiyun sum_ret = ret;
41*4882a593Smuzhiyun }
42*4882a593Smuzhiyun return sum_ret;
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun static const struct team_mode_ops bc_mode_ops = {
46*4882a593Smuzhiyun .transmit = bc_transmit,
47*4882a593Smuzhiyun .port_enter = team_modeop_port_enter,
48*4882a593Smuzhiyun .port_change_dev_addr = team_modeop_port_change_dev_addr,
49*4882a593Smuzhiyun };
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun static const struct team_mode bc_mode = {
52*4882a593Smuzhiyun .kind = "broadcast",
53*4882a593Smuzhiyun .owner = THIS_MODULE,
54*4882a593Smuzhiyun .ops = &bc_mode_ops,
55*4882a593Smuzhiyun .lag_tx_type = NETDEV_LAG_TX_TYPE_BROADCAST,
56*4882a593Smuzhiyun };
57*4882a593Smuzhiyun
bc_init_module(void)58*4882a593Smuzhiyun static int __init bc_init_module(void)
59*4882a593Smuzhiyun {
60*4882a593Smuzhiyun return team_mode_register(&bc_mode);
61*4882a593Smuzhiyun }
62*4882a593Smuzhiyun
bc_cleanup_module(void)63*4882a593Smuzhiyun static void __exit bc_cleanup_module(void)
64*4882a593Smuzhiyun {
65*4882a593Smuzhiyun team_mode_unregister(&bc_mode);
66*4882a593Smuzhiyun }
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun module_init(bc_init_module);
69*4882a593Smuzhiyun module_exit(bc_cleanup_module);
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun MODULE_LICENSE("GPL v2");
72*4882a593Smuzhiyun MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
73*4882a593Smuzhiyun MODULE_DESCRIPTION("Broadcast mode for team");
74*4882a593Smuzhiyun MODULE_ALIAS_TEAM_MODE("broadcast");
75