root@europa:/sys/kernel/debug/ieee80211/phy1/ath9k# cat xmit
Num-Tx-Queues: 10  tx-queues-setup: 0x10f poll-work-seen: 3505
                            BE         BK        VI        VO

MPDUs Queued:             5407        342     13532     46704
MPDUs Completed:          5397        342     13526     46697
MPDUs XRetried:             10          0         6         7
Aggregates:               9774      18500     32952         0
AMPDUs Queued HW:        14000       5683     12933         0
AMPDUs Queued SW:       130842     277076    506010         0
AMPDUs Completed:       144205     282545    518569         0
AMPDUs Retried:          31926      31888     65081         0
AMPDUs XRetried:           637        214       374         0