On Sat, Mar 18, 2023 at 8:17 AM Tim Harvey <tharvey@xxxxxxxxxxxxx> wrote:
> It seems that Daniel may have been running into something similar back
> when commit 7368160f0ab0 ("ath9k: add MSI support") was merged
> [1][2][3]
>
> Does anyone have any advice here about what can be going on?
The issue we found earlier was that ath9k MSI is broken unless the MSI
IRQ number coincidentally is aligned to 4.
Worked around with:
https://github.com/endlessm/linux/commit/0a2d86a2b9da8f936d873addf0a97e341177fe8a
https://github.com/endlessm/linux/commit/970d2b4b59465cd926e5213e0feb633f6b623447
IIRC the PCI patch wasn't accepted upstream at the time and I never
got any response from Atheros/Qualcomm about this device
hardware/firmware bug.
Daniel
