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-rw-r--r--include/uapi/linux/psample.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/include/uapi/linux/psample.h b/include/uapi/linux/psample.h
index e80637e1d97b..b765f0e81f20 100644
--- a/include/uapi/linux/psample.h
+++ b/include/uapi/linux/psample.h
@@ -8,7 +8,11 @@ enum {
PSAMPLE_ATTR_ORIGSIZE,
PSAMPLE_ATTR_SAMPLE_GROUP,
PSAMPLE_ATTR_GROUP_SEQ,
- PSAMPLE_ATTR_SAMPLE_RATE,
+ PSAMPLE_ATTR_SAMPLE_RATE, /* u32, ratio between observed and
+ * sampled packets or scaled probability
+ * if PSAMPLE_ATTR_SAMPLE_PROBABILITY
+ * is set.
+ */
PSAMPLE_ATTR_DATA,
PSAMPLE_ATTR_GROUP_REFCOUNT,
PSAMPLE_ATTR_TUNNEL,
@@ -20,6 +24,10 @@ enum {
PSAMPLE_ATTR_TIMESTAMP, /* u64, nanoseconds */
PSAMPLE_ATTR_PROTO, /* u16 */
PSAMPLE_ATTR_USER_COOKIE, /* binary, user provided data */
+ PSAMPLE_ATTR_SAMPLE_PROBABILITY,/* no argument, interpret rate in
+ * PSAMPLE_ATTR_SAMPLE_RATE as a
+ * probability scaled 0 - U32_MAX.
+ */
__PSAMPLE_ATTR_MAX
};