Dynalink DL-WRX36 Askey RT5010W IPQ8072A technical discussion

[hnyman]

@Ansuel

ideally interrupt should just be assigned to one specific core... ath11k is a bad boy with how each ring and copy engine are handled so i guess we really can't change interrupt on the go.

@ansuel @robimarko
Do you have suggestions, how the IRQs affinities should be assigned with ath11k on multicore CPUs?
Apparently using irqbalance can be dangerous, so would manual affinity assignment work?

E.g. ipq8072 has 4 cores, so it sounds strange to leave everything on core0.

The examples in the forum (below) mainly distribute reo2host-destination-ring[1-4] and
wbm2host-tx-completions-ring[1-3] :

• Dynalink DL-WRX36 Askey RT5010W IPQ8072A technical discussion - #864 by SiXX
• Dynalink DL-WRX36 Askey RT5010W IPQ8072A technical discussion - #1092 by sampson

and we also wonder about the "ring" meaning: should all ring-mac1 be on the same core or not, etc.

• Dynalink DL-WRX36 Askey RT5010W IPQ8072A technical discussion - #941 by sqrwv

Looking at the interrupt usage, main counts are with reo2host-destination-ring[1-4] and
wbm2host-tx-completions-ring[1-3] (note only 3 rings)

Any wisdom about the ath11k irq usage/balancing?

EDIT:
Actually, one of the messages has a reference to Xiaomi discussions, which has this interesting link to codeaurora where a balancing script with logic to map rings to core scan be found: https://source.codeaurora.org/quic/qsdk/oss/system/feeds/wlan-open/tree/mac80211/files/lib/smp_affinity_settings.sh?h=win_ap.1.0