diff options
| author | Simon Wunderlich <siwu@hrz.tu-chemnitz.de> | 2010-06-22 01:25:52 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-06-22 14:05:06 -0700 |
| commit | e35fd5ecde2ef0b247a607bc82c4b8f1de06d53b (patch) | |
| tree | 8d0aeffb5593c92e4039717c9deeeb9590712773 /drivers/staging/batman-adv/main.h | |
| parent | cf2d72ec5c66ac3ebe9d28c3d88314a958cc180e (diff) | |
Staging: batman-adv: Add bonding functionality
This patch introduces bonding functionality to batman-advanced, targeted
for the 0.3 release. As we are able to route the payload traffic as we
want, we may use multiple interfaces on multihomed hosts to transfer data
to achieve higher bandwidth. This can be considered as "light Multi Path
Routing" for single hop connections.
To detect which interfaces of a peer node belong to the same host, a
new flag PRIMARIES_FIRST_HOP is introduced. This flag is set on the first hop
of OGMs of the primary (first) interface, which is broadcasted on all
interfaces. When receiving such an OGM, we can learn which interfaces
belong to the same host (by assigning them to the primary originator).
Bonding works by sending packets in a round-robin fashion to the available
interfaces of a neighbor host, if multiple interfaces are available. The
neighbor interfaces should be almost equally good to reach.
To avoid interferences (i.e. sending on the same channel), only neighbor
interfaces with different mac addresses and different outgoing interfaces
are considered as candidates.
Bonding is deactivated by default, and can be activated by
echo 1 > /sys/class/net/bat0/mesh/bonding
for each individual node.
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
[sven.eckelmann@gmx.de: Rework on top of current version]
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/batman-adv/main.h')
| -rw-r--r-- | drivers/staging/batman-adv/main.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/staging/batman-adv/main.h b/drivers/staging/batman-adv/main.h index 145ac5131bf8..fe5ee51357b5 100644 --- a/drivers/staging/batman-adv/main.h +++ b/drivers/staging/batman-adv/main.h @@ -59,6 +59,11 @@ #define VIS_INTERVAL 5000 /* 5 seconds */ +/* how much worse secondary interfaces may be to + * to be considered as bonding candidates */ + +#define BONDING_TQ_THRESHOLD 50 + #define MAX_AGGREGATION_BYTES 512 /* should not be bigger than 512 bytes or * change the size of * forw_packet->direct_link_flags */ |