Messages in this thread | | | Date | Fri, 6 Nov 2015 20:37:38 +0100 | Subject | Re: [RFC PATCH 0/2] net: mvneta: Introduce RSS support | From | Marcin Wojtas <> |
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Hi Gregory,
> I also choose to associate all the TX queues on the same CPU that the > one associated to the RX queue. It allows to contain all the > interrupts on the same CPU. I think that an improvement on this side > would be the support of the XPS. >
Did you make some tries? E.g. after mapping certain txqs to CPU1, when using them was mvneta_tx() executing only on this CPU? Or it rather means that the irq will hit according to the mapping? As far as I know the HW, the latter should be true, which would mean the real XPS with this controller is impossible and the maximum we can control is the irq.
I think it may be worth to unmask TX irqs on all cpus, so all percpu napi's would be able to read tx_cause and process sent packets. I'm looking forward to your opinion.
Best regards, Marcin
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