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net: packet: document available fanout policies

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Update documentation to add fanout policies that are available.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann 2013-08-28 22:13:11 +02:00 committed by David S. Miller
parent f55d112e52
commit 7ec06da81d
1 changed files with 8 additions and 0 deletions
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8
Documentation/networking/packet_mmap.txt
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@ -543,6 +543,14 @@ TPACKET_V2 --> TPACKET_V3:
In the AF_PACKET fanout mode, packet reception can be load balanced among
processes. This also works in combination with mmap(2) on packet sockets.
Currently implemented fanout policies are:
- PACKET_FANOUT_HASH: schedule to socket by skb's rxhash
- PACKET_FANOUT_LB: schedule to socket by round-robin
- PACKET_FANOUT_CPU: schedule to socket by CPU packet arrives on
- PACKET_FANOUT_RND: schedule to socket by random selection
- PACKET_FANOUT_ROLLOVER: if one socket is full, rollover to another
Minimal example code by David S. Miller (try things like "./test eth0 hash",
"./test eth0 lb", etc.):