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| author | Linus Lüssing <linus.luessing@c0d3.blue> | 2019-03-23 05:47:41 +0100 |
|---|---|---|
| committer | Simon Wunderlich <sw@simonwunderlich.de> | 2019-03-25 10:01:13 +0100 |
| commit | 32e727449c792b689c2a06a8b4cc9fef6270c5a7 (patch) | |
| tree | a34bf38d2549d686f7decdd2708b968dd297a7d0 /net/batman-adv/translation-table.h | |
| parent | batman-adv: allow updating DAT entry timeouts on incoming ARP Replies (diff) | |
| download | linux-32e727449c792b689c2a06a8b4cc9fef6270c5a7.tar.xz linux-32e727449c792b689c2a06a8b4cc9fef6270c5a7.zip | |
batman-adv: Add multicast-to-unicast support for multiple targets
With this patch multicast packets with a limited number of destinations
(current default: 16) will be split and transmitted by the originator as
individual unicast transmissions.
Wifi broadcasts with their low bitrate are still a costly undertaking.
In a mesh network this cost multiplies with the overall size of the mesh
network. Therefore using multiple unicast transmissions instead of
broadcast flooding is almost always less burdensome for the mesh
network.
The maximum amount of unicast packets can be configured via the newly
introduced multicast_fanout parameter. If this limit is exceeded
distribution will fall back to classic broadcast flooding.
The multicast-to-unicast conversion is performed on the initial
multicast sender node and counts on a final destination node, mesh-wide
basis (and not next hop, neighbor node basis).
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Diffstat (limited to 'net/batman-adv/translation-table.h')
| -rw-r--r-- | net/batman-adv/translation-table.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h index a328979836b2..c8c48d62a430 100644 --- a/net/batman-adv/translation-table.h +++ b/net/batman-adv/translation-table.h @@ -29,6 +29,10 @@ int batadv_tt_global_dump(struct sk_buff *msg, struct netlink_callback *cb); void batadv_tt_global_del_orig(struct batadv_priv *bat_priv, struct batadv_orig_node *orig_node, s32 match_vid, const char *message); +struct batadv_tt_global_entry * +batadv_tt_global_hash_find(struct batadv_priv *bat_priv, const u8 *addr, + unsigned short vid); +void batadv_tt_global_entry_put(struct batadv_tt_global_entry *tt_global_entry); int batadv_tt_global_hash_count(struct batadv_priv *bat_priv, const u8 *addr, unsigned short vid); struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv, |