wifi: ath12k: enable threaded NAPI when DP IRQ affinity is unavailable

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Determine threaded NAPI policy from runtime IRQ capability of the DP MSI
IRQ.

If irq_can_set_affinity() reports that affinity cannot be set, enable
threaded NAPI for DP interrupt groups so datapath processing is not
constrained by a single-CPU softirq context.

On RB3Gen2, where IRQ affinity is unavailable in the effective IRQ path,
EHT160 UDP downlink throughput improved from 802 Mbps to 2.58 Gbps after
enabling threaded NAPI.

Tested-on: QCC2072 hw1.0 PCI WLAN.COL.1.0.c2-00074-QCACOLSWPL_V1_TO_SILICONZ-1

Signed-off-by: Hangtian Zhu <hangtian.zhu@oss.qualcomm.com>
Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Link: https://patch.msgid.link/20260519011627.713068-3-hangtian.zhu@oss.qualcomm.com
[Fixed checkpatch "Missing a blank line after declarations"]
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>

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Hangtian Zhu 2026-05-19 09:16:27 +08:00 • committed by Jeff Johnson

parent 25e638447e

commit 74e1a4762c

1 changed files with 11 additions and 1 deletions

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drivers/net/wireless/ath/ath12k/pci.c

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