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authorAdrian Moreno <amorenoz@redhat.com>2024-07-04 10:56:57 +0200
committerJakub Kicinski <kuba@kernel.org>2024-07-05 17:45:47 -0700
commit71763d8a8203c28178d7be7f18af73d4dddb36ba (patch)
treeb9c506833f49b485c9730a4a19ab277afa92c8f5 /include/uapi/linux
parentaae0b82b46cb5004bdf82a000c004d69a0885c33 (diff)
net: openvswitch: store sampling probability in cb.
When a packet sample is observed, the sampling rate that was used is important to estimate the real frequency of such event. Store the probability of the parent sample action in the skb's cb area and use it in psample action to pass it down to psample module. Reviewed-by: Aaron Conole <aconole@redhat.com> Acked-by: Eelco Chaudron <echaudro@redhat.com> Reviewed-by: Ilya Maximets <i.maximets@ovn.org> Signed-off-by: Adrian Moreno <amorenoz@redhat.com> Link: https://patch.msgid.link/20240704085710.353845-7-amorenoz@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/uapi/linux')
-rw-r--r--include/uapi/linux/openvswitch.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 3dd653748725..3a701bd1f31b 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -649,7 +649,8 @@ enum ovs_flow_attr {
* Actions are passed as nested attributes.
*
* Executes the specified actions with the given probability on a per-packet
- * basis.
+ * basis. Nested actions will be able to access the probability value of the
+ * parent @OVS_ACTION_ATTR_SAMPLE.
*/
enum ovs_sample_attr {
OVS_SAMPLE_ATTR_UNSPEC,