Commit | Line | Data |
---|---|---|
2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
3d249d4c | 2 | /* |
0d572e45 | 3 | * drivers/net/team/team_mode_roundrobin.c - Round-robin mode for team |
3d249d4c | 4 | * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com> |
3d249d4c JP |
5 | */ |
6 | ||
7 | #include <linux/kernel.h> | |
8 | #include <linux/types.h> | |
9 | #include <linux/module.h> | |
10 | #include <linux/init.h> | |
3d249d4c JP |
11 | #include <linux/netdevice.h> |
12 | #include <linux/if_team.h> | |
13 | ||
14 | struct rr_priv { | |
15 | unsigned int sent_packets; | |
16 | }; | |
17 | ||
18 | static struct rr_priv *rr_priv(struct team *team) | |
19 | { | |
20 | return (struct rr_priv *) &team->mode_priv; | |
21 | } | |
22 | ||
3d249d4c JP |
23 | static bool rr_transmit(struct team *team, struct sk_buff *skb) |
24 | { | |
25 | struct team_port *port; | |
26 | int port_index; | |
27 | ||
735d381f JP |
28 | port_index = team_num_to_port_index(team, |
29 | rr_priv(team)->sent_packets++); | |
3d249d4c | 30 | port = team_get_port_by_index_rcu(team, port_index); |
76c455de JP |
31 | if (unlikely(!port)) |
32 | goto drop; | |
753f9939 | 33 | port = team_get_first_port_txable_rcu(team, port); |
3d249d4c JP |
34 | if (unlikely(!port)) |
35 | goto drop; | |
bd2d0837 | 36 | if (team_dev_queue_xmit(team, port, skb)) |
3d249d4c JP |
37 | return false; |
38 | return true; | |
39 | ||
40 | drop: | |
41 | dev_kfree_skb_any(skb); | |
42 | return false; | |
43 | } | |
44 | ||
3d249d4c JP |
45 | static const struct team_mode_ops rr_mode_ops = { |
46 | .transmit = rr_transmit, | |
acbba0d0 JP |
47 | .port_enter = team_modeop_port_enter, |
48 | .port_change_dev_addr = team_modeop_port_change_dev_addr, | |
3d249d4c JP |
49 | }; |
50 | ||
0402788a | 51 | static const struct team_mode rr_mode = { |
3d249d4c JP |
52 | .kind = "roundrobin", |
53 | .owner = THIS_MODULE, | |
54 | .priv_size = sizeof(struct rr_priv), | |
55 | .ops = &rr_mode_ops, | |
8fd72856 | 56 | .lag_tx_type = NETDEV_LAG_TX_TYPE_ROUNDROBIN, |
3d249d4c JP |
57 | }; |
58 | ||
59 | static int __init rr_init_module(void) | |
60 | { | |
61 | return team_mode_register(&rr_mode); | |
62 | } | |
63 | ||
64 | static void __exit rr_cleanup_module(void) | |
65 | { | |
66 | team_mode_unregister(&rr_mode); | |
67 | } | |
68 | ||
69 | module_init(rr_init_module); | |
70 | module_exit(rr_cleanup_module); | |
71 | ||
72 | MODULE_LICENSE("GPL v2"); | |
73 | MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); | |
74 | MODULE_DESCRIPTION("Round-robin mode for team"); | |
3a5f8997 | 75 | MODULE_ALIAS_TEAM_MODE("roundrobin"); |