Question on priorities with CAN

From: Kurt Van Dijck
Date: Thu Sep 19 2019 - 04:56:04 EST


Hey,

I work on a beaglebone-like board using the AM335x can chip, with an RT
kernel.

The can irq task is by default rt prio 50.
I have a process running on rt prio 10 using CAN_RAW socket.

I see that softirqd runs on regular timeslicing.
Do CAN frames need to pass through the softirqd in order to arrive
on my process?
I would need to elevate the softirqd's rt prio also in that case?

Kind regards,
Kurt