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sched: Dump configuration and statistics of dualpi2 qdisc

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The configuration and statistics dump of the DualPI2 Qdisc provides
information related to both queues, such as packet numbers and queuing
delays in the L-queue and C-queue, as well as general information such as
probability value, WRR credits, memory usage, packet marking counters, max
queue size, etc.

The following patch includes enqueue/dequeue for DualPI2.

Signed-off-by: Chia-Yu Chang <chia-yu.chang@nokia-bell-labs.com>
Link: https://patch.msgid.link/20250722095915.24485-3-chia-yu.chang@nokia-bell-labs.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Chia-Yu Chang
2025-07-22 11:59:11 +02:00
committed by Jakub Kicinski
parent 320d031ad6
commit d4de8bffbe
2 changed files with 152 additions and 17 deletions
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include/uapi/linux/pkt_sched.h
+15
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@@ -1264,4 +1264,19 @@ enum {
#define TCA_DUALPI2_MAX (__TCA_DUALPI2_MAX - 1)
struct tc_dualpi2_xstats {
__u32 prob; /* current probability */
__u32 delay_c; /* current delay in C queue */
__u32 delay_l; /* current delay in L queue */
__u32 packets_in_c; /* number of packets enqueued in C queue */
__u32 packets_in_l; /* number of packets enqueued in L queue */
__u32 maxq; /* maximum queue size */
__u32 ecn_mark; /* packets marked with ecn*/
__u32 step_marks; /* ECN marks due to the step AQM */
__s32 credit; /* current c_protection credit */
__u32 memory_used; /* Memory used by both queues */
__u32 max_memory_used; /* Maximum used memory */
__u32 memory_limit; /* Memory limit of both queues */
};
#endif