qca99x0 don't work with MSI-X supported/enabled

Janusz Dziedzic janusz.dziedzic at tieto.com
Wed Sep 16 00:54:55 PDT 2015


Seems in case of qca99x0 we request

.msi_assign_ce_max              = 12

Next in case PC support MSI-X we fail when registering CE interrupts
with error msg:
ath10k_pci 0000:04:00.0: failed to request MSI-X ce irq 50: -22

Seems my linux limit max MSI-X to 8, so we should not request irq per CE?
BTW are CE8 .. CE11 used by the driver ? Or we can setup msi_assign_ce_max = 7?

Works fine when single MSI-X or legacy interrupt forced.


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