Question on tx/rx queue in RTnet

Jan Kiszka jan.kiszka at web.de
Wed Jul 8 19:11:02 CEST 2020


On 07.07.20 04:32, Jordan Paul via Xenomai wrote:
> Hi
>
> I am using i210 driver with xenomai 3.1 on kernel 4.19
>
> rt_igb 0000:01:00.0: Using MSI-X interrupts. 1 rx queue(s), 1 tx queue(s)
>
>
> based on the above dmesg log, I am currently getting 1 tx and 1 rx queue,
> is this by design for RTnet?
>
> igb 0000:01:00.0: Using MSI-X interrupts. 4 rx queue(s), 4 tx queue(s)
>
>
> compared with linux drivers for igb, I am getting 4 tx and 4 rx queue.
>

RTnet has indeed no infrastructure for supporting multiple queues per
interface. Consequently, the related code in the ported drivers is
deactivated (if it existed at all when ported).

Jan



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