LXR linux/drivers/net/team/team_mode

   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
  15static 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
  45static 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
  51static 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
  58static int __init bc_init_module(void)
  59{
  60        return team_mode_register(&bc_mode);
  61}
  62
  63static void __exit bc_cleanup_module(void)
  64{
  65        team_mode_unregister(&bc_mode);
  66}
  67
  68module_init(bc_init_module);
  69module_exit(bc_cleanup_module);
  70
  71MODULE_LICENSE("GPL v2");
  72MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
  73MODULE_DESCRIPTION("Broadcast mode for team");
  74MODULE_ALIAS_TEAM_MODE("broadcast");
  75