Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / team / team_mode_broadcast.c

diff --git a/kernel/drivers/net/team/team_mode_broadcast.c b/kernel/drivers/net/team/team_mode_broadcast.c
new file mode 100644 (file)
index 0000000..c366cd2
--- /dev/null
+++ b/kernel/drivers/net/team/team_mode_broadcast.c
@@ -0,0 +1,77 @@
+/*
+ * drivers/net/team/team_mode_broadcast.c - Broadcast mode for team
+ * Copyright (c) 2012 Jiri Pirko <jpirko@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/netdevice.h>
+#include <linux/if_team.h>
+
+static bool bc_transmit(struct team *team, struct sk_buff *skb)
+{
+       struct team_port *cur;
+       struct team_port *last = NULL;
+       struct sk_buff *skb2;
+       bool ret;
+       bool sum_ret = false;
+
+       list_for_each_entry_rcu(cur, &team->port_list, list) {
+               if (team_port_txable(cur)) {
+                       if (last) {
+                               skb2 = skb_clone(skb, GFP_ATOMIC);
+                               if (skb2) {
+                                       ret = !team_dev_queue_xmit(team, last,
+                                                                  skb2);
+                                       if (!sum_ret)
+                                               sum_ret = ret;
+                               }
+                       }
+                       last = cur;
+               }
+       }
+       if (last) {
+               ret = !team_dev_queue_xmit(team, last, skb);
+               if (!sum_ret)
+                       sum_ret = ret;
+       }
+       return sum_ret;
+}
+
+static const struct team_mode_ops bc_mode_ops = {
+       .transmit               = bc_transmit,
+       .port_enter             = team_modeop_port_enter,
+       .port_change_dev_addr   = team_modeop_port_change_dev_addr,
+};
+
+static const struct team_mode bc_mode = {
+       .kind           = "broadcast",
+       .owner          = THIS_MODULE,
+       .ops            = &bc_mode_ops,
+};
+
+static int __init bc_init_module(void)
+{
+       return team_mode_register(&bc_mode);
+}
+
+static void __exit bc_cleanup_module(void)
+{
+       team_mode_unregister(&bc_mode);
+}
+
+module_init(bc_init_module);
+module_exit(bc_cleanup_module);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
+MODULE_DESCRIPTION("Broadcast mode for team");
+MODULE_ALIAS("team-mode-broadcast");