diff options
| author | Stephen Hemminger <stephen@networkplumber.org> | 2026-05-09 10:03:26 -0700 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2026-05-14 11:41:30 +0200 |
| commit | a2f6ed7b4873288d9e90e69199012857bed4bfa4 (patch) | |
| tree | 369900c8c2044abdb18bcc312f8f1149cbce0a0e /include/uapi | |
| parent | e8be7cdedc41ff28876d66b566770929d03acbb8 (diff) | |
net/sched: netem: add per-impairment extended statistics
Add 64-bit counters for each impairment netem applies (delay, loss,
ECN marking, corruption, duplication, reordering) and for skb
allocation failures during enqueue. Exposed through TCA_STATS_APP
as struct tc_netem_xstats.
Counters increment when an impairment is occurs, independent of later
events that may mask its on-wire effect. Added allocation_errors
(similar to sch_fq) to account for when impairment could not be
applied due to memory pressure, etc.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Link: https://patch.msgid.link/20260509171123.307549-6-stephen@networkplumber.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/pkt_sched.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h index 66e8072f44df..490efd288526 100644 --- a/include/uapi/linux/pkt_sched.h +++ b/include/uapi/linux/pkt_sched.h @@ -569,6 +569,16 @@ struct tc_netem_gemodel { #define NETEM_DIST_SCALE 8192 #define NETEM_DIST_MAX 16384 +struct tc_netem_xstats { + __u64 delayed; /* packets delayed */ + __u64 dropped; /* packets dropped by loss model */ + __u64 corrupted; /* packets with bit errors injected */ + __u64 duplicated; /* duplicate packets generated */ + __u64 reordered; /* packets sent out of order */ + __u64 ecn_marked; /* packets ECN CE-marked (not dropped)*/ + __u64 allocation_errors; +}; + /* DRR */ enum { |