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| author | Eric Dumazet <[email protected]> | 2013-02-07 16:41:02 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2013-02-08 22:55:48 +0000 |
| commit | 3807ff5899f892abb4f06747c245fd648a2acdc5 (patch) | |
| tree | a4c6bc690e612da44dab7e8beb71c5c0bdb8b6ba /drivers/net/xen-netback/interface.c | |
| parent | macvlan: broadcast addr should be part of mc_filter (diff) | |
| download | kernel-3807ff5899f892abb4f06747c245fd648a2acdc5.tar.gz kernel-3807ff5899f892abb4f06747c245fd648a2acdc5.zip | |
macvlan: add a salt to mc_hash()
Some multicast addresses are common to all macvlans,
so if a multicast message has a hash value collision, we
have to deliver a copy to all macvlans, adding significant
latency and possible packet drops if netdev_max_backlog
limit is hit.
Having a per macvlan hash function permits to reduce the
impact of hash collisions.
Suggested-by: Maciej Żenczykowski <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: Maciej Żenczykowski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
0 files changed, 0 insertions, 0 deletions