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authorYotam Gigi <yotamg@mellanox.com>2017-01-23 13:07:09 +0300
committerDavid S. Miller <davem@davemloft.net>2017-01-24 21:44:28 +0300
commit5c5670fae43027778e84b9d9ff3b9d91a10a8131 (patch)
treef0b873535efb93537a041a2b189e1f34b8a663c3 /net/sched/Kconfig
parent6ae0a6286171154661b74f7f550f9441c6008424 (diff)
downloadlinux-5c5670fae43027778e84b9d9ff3b9d91a10a8131.tar.xz
net/sched: Introduce sample tc action
This action allows the user to sample traffic matched by tc classifier. The sampling consists of choosing packets randomly and sampling them using the psample module. The user can configure the psample group number, the sampling rate and the packet's truncation (to save kernel-user traffic). Example: To sample ingress traffic from interface eth1, one may use the commands: tc qdisc add dev eth1 handle ffff: ingress tc filter add dev eth1 parent ffff: \ matchall action sample rate 12 group 4 Where the first command adds an ingress qdisc and the second starts sampling randomly with an average of one sampled packet per 12 packets on dev eth1 to psample group 4. Signed-off-by: Yotam Gigi <yotamg@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/Kconfig')
-rw-r--r--net/sched/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index a9aa38d43fa7..72cfa3a6bac0 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -650,6 +650,18 @@ config NET_ACT_MIRRED
To compile this code as a module, choose M here: the
module will be called act_mirred.
+config NET_ACT_SAMPLE
+ tristate "Traffic Sampling"
+ depends on NET_CLS_ACT
+ select PSAMPLE
+ ---help---
+ Say Y here to allow packet sampling tc action. The packet sample
+ action consists of statistically choosing packets and sampling
+ them using the psample module.
+
+ To compile this code as a module, choose M here: the
+ module will be called act_sample.
+
config NET_ACT_IPT
tristate "IPtables targets"
depends on NET_CLS_ACT && NETFILTER && IP_NF_IPTABLES