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Date:   Tue, 19 Feb 2019 20:41:21 +0100
From:   Simon Huelck <simonmail@....de>
To:     Jose Abreu <jose.abreu@...opsys.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc:     Emiliano Ingrassia <ingrassia@...genesys.com>,
        Gpeppe.cavallaro@...com, alexandre.torgue@...com,
        linux-amlogic@...ts.infradead.org, netdev@...r.kernel.org
Subject: Re: stmmac / meson8b-dwmac

Am 19.02.2019 um 09:47 schrieb Jose Abreu:
> Hi Simon,
>
> On 2/18/2019 6:05 PM, Simon Huelck wrote:
>> disabling EEE doesnt help ( did it via the entry in the .dtb / .dts ),
>> the results are the same. I can confirm the LPI counters are zero or one
>> only after the test.....
> It's interesting to see that you have a lot of RX packets but few
> RX interrupts. This can either be due to mis-configuration of
> interrupt flags or RX Watchdog.
>
> 1. For interrupt flags you should be using LEVEL triggered IRQ.
> 2. For RX Watchdog you can try disabling it by adding the
> following in your platform wrapper driver (which will be
> "dwmac-meson8b.c", at probe):
> 	"plat_data->force_sf_dma_mode = 1;" and
> 	"plat_data->riwt_off = 1;"
>
> Thanks,
> Jose Miguel Abreu

Hi,


are you aware that odroid c2 dts is using level irq ?

at which numbers do you estimage that RX irqs are low in numbers ?


regards,

Simon

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