Re: [Cake] tc not showing detailed stats

[Georgios Amanakis <gamanakis@gmail.com>]

I am well aware of that :)
On my system though with tc-adv@aa554002 and sch_cake/cobalt@842d7f0
it doesn't produce any detailed stats:

% tc -s qdisc show
qdisc cake 8009: dev ens4 root refcnt 2 bandwidth 18Mbit diffserv3
dual-dsthost ingress split-gso rtt 100.0ms noatm overhead 18 mpu 64 
 Sent 5098 bytes 35 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 memory used: 4Mb of 2250000b
 min/max network layer size:            2 /      88
 min/max overhead-adjusted size:      248 /     106
 average network hdr offset:         2304

!!!Deficit 4, rta_len=266


I bisected it and it's definitely commit sch_cake/cobalt@842d7f0.
Now if I introduce TCA_CAKE_STATS_PAD at the end of the enum, this
resolves the bug. i.e.:

--- a/pkt_sched.h
+++ b/pkt_sched.h
@@ -883,7 +883,6 @@ enum {
 
 enum {
        __TCA_CAKE_STATS_INVALID,
-       TCA_CAKE_STATS_PAD,
        TCA_CAKE_STATS_CAPACITY_ESTIMATE64,
        TCA_CAKE_STATS_MEMORY_LIMIT,
        TCA_CAKE_STATS_MEMORY_USED,
@@ -893,6 +892,7 @@ enum {
        TCA_CAKE_STATS_MIN_ADJLEN,
        TCA_CAKE_STATS_MAX_ADJLEN,
        TCA_CAKE_STATS_TIN_STATS,
+       TCA_CAKE_STATS_PAD,
        __TCA_CAKE_STATS_MAX
 };



George