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Qdisc layer (bypassed)
MAC layer
ath9k driver
HW queue
(x4)
2 aggr
FIFO
RR
Assign TID
Retries
To hardware
retry_q
TID
Prio
FQ-
CoDel
Split ﬂows
2048
(Global limit)
retry_q
TID
FQ-
CoDel
Prio
Split ﬂows
2048
(Global limit)